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The following is an excerpt from a S-3 SEC Filing, filed by TXU CORP /TX/ on 5/4/2004.
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ENERGY FUTURE HOLDINGS CORP /TX/ - S-3 - 20040504 - EXHIBIT_4

EXHIBIT 4(h)

TXU CORP.

OFFICER'S CERTIFICATE

______________, the _________ of TXU Corp., a Texas corporation (the "Company"), pursuant to the authority granted in the Board Resolutions of the Company dated ______, ____, and Sections 102, 201, 301 and 1501 of the Indenture defined herein, does hereby certify to The Bank of New York, as Trustee (the "Trustee") under the Indenture of the Company (For Unsecured Debt Securities Series _) dated as of ___________, ____ (the "Indenture"), that:

1. The Securities of the first series to be issued under the Indenture shall be designated "__% Series ___ [Floating Rate] Senior Notes due ____________, ____" (the "Series _ Notes"). All capitalized terms used in this certificate which are not defined herein shall have the meanings set forth in Exhibit A hereto; all capitalized terms used in this certificate which are not defined herein or in Exhibit A hereto shall have the meanings set forth in the Indenture;

2. The Series _ Notes shall mature and the principal thereof shall be due and payable together with all accrued and unpaid interest thereon on ____________, ____;

3. The Series _ Notes shall bear interest as provided in the form thereof set forth in Exhibit A hereto. [The Calculation Agent for the Series _ Notes shall be ____________________, or its successor as Calculation Agent. At any time, the Company may designate a successor Calculation Agent, who may be any Person who is eligible to be a successor Trustee or co-trustee under the Indenture or who (a) is in fact independent, (b) does not have any direct material financial interest in the Company or in any Affiliate of the Company, (c) is not connected with the Company as an officer, employee, promoter, underwriter, partner, director or person performing similar functions, (d) is selected by an Authorized Officer and (e) is approved by the Trustee in the exercise of reasonable care;]/1/

4. The principal of, and premium, if any, and each installment of interest on the Series _ Notes shall be payable at the office or agency of the Company in The City of New York; provided that payment of interest may be made at the option of the Company by check mailed to the address of the persons entitled thereto or by wire transfer to an account designated by the person entitled thereto; and provided further that so long as the Series _ Notes are registered in the name of The Depository Trust Company ("DTC"), or its nominee as discussed below, all payments of principal and interest in respect of the Series _ Notes will be made in immediately available funds. Notices and demands to or upon the Company in respect of the Series _ Notes and the Indenture may be served at the office or agency of the Company in The City of New York. The Corporate Trust Office of the Trustee will initially be the agency of the Company for such payment and service of notices and demands and the Company hereby appoints The Bank of New York as its agent for all such purposes; provided, however, that the Company reserves the right to change, by one or more Officer's Certificates, any such office or agency and such agent. The registration and registration of transfers and exchanges in respect of the Series _ Notes may be effected at the offices of TXU Business Services Company in Dallas, Texas. TXU Business


1 Applicable to Floating Rate Senior Notes.

Services Company will initially be the Security Registrar and the Trustee will initially be the Paying Agent for the Series _ Notes;

5. [Redemption provisions for the Series _ Notes will be inserted here];

6. The Series _ Notes shall initially be issued in the form of a global security to, and registered in the name of Cede & Co., as nominee of The Depository Trust Company ("DTC"); provided, that the Company reserves the right to provide for another depositary, registered as a clearing agency under the Exchange Act, to act as depositary for the global Series _ Notes (DTC and any such successor depositary, the "Depositary"); beneficial interests in Series _ Notes issued in global form may not be exchanged in whole or in part for individual certificated Series _ Notes in definitive form, and no transfer of a global Series _ Note in whole or in part may be registered in the name of any Person other than the Depositary or its nominee except that if the Depositary (A) has notified the Company that it is unwilling or unable to continue as depositary for the global Series _ Notes or (B) has ceased to be a clearing agency registered under the Exchange Act and, in either case, a successor depositary for such global Series _ Notes has not been appointed, the Company will execute, and the Trustee, upon receipt of a Company Order for the authentication and delivery of definitive Series _ Notes, will authenticate and deliver Series _ Notes in definitive certificated form in an aggregate principal amount equal to the principal amount of the global Series _ Notes representing such Series _ Notes in exchange for such global Series _ Notes, such definitive Series _ Notes to be registered in the names provided by the Depositary; each global Series _ Note (i) shall represent and shall be denominated in an amount equal to the aggregate principal amount of the outstanding Notes to be represented by such global Series _ Note (ii) shall be registered in the name of the Depositary or its nominee, (iii) shall be delivered by the Trustee to the Depositary, its nominee, any custodian for the Depositary or otherwise pursuant to the Depositary's instruction and
(iv) shall bear a legend restricting the transfer of such global Series _ Note to any Person other than the Depositary or its nominee; none of the Company, the Trustee, any Paying Agent or any Authenticating Agent will have any responsibility or liability for any aspect of the records relating to, or payments made on account of or transfers of, beneficial ownership interests in a global Series _ Note or for maintaining, supervising or reviewing any records relating to such beneficial ownership interests; the Notes in global form will contain restrictions on transfer, substantially as described in the form set forth in Exhibit A.

DTC or such nominee shall be the Holder of such global securities for all purposes under the Indenture and the Series _ Notes, and beneficial owners with respect to such global security shall hold their interests pursuant to applicable procedures of Depositary. The Company, the Trustee and the Securities Registrar shall be entitled to deal with Depositary for all purposes of the Indenture relating to such global security (including the payment of principal, premium, if any, and interest and Additional Amounts, if any, and the giving of instructions or directions by or to the beneficial owners of such global security) as the sole Holder of such global security and shall have no obligations to the beneficial owners thereof. Any such global security shall bear the legend in substantially the form appearing on the form of the Series _ Notes set forth in Exhibit A hereto, or such other form as DTC shall require.

None of the Company, the Trustee or the Securities Registrar shall have any liability for any acts or omissions of the Depositary, for any Depositary records of beneficial interests, for any transactions between the Depositary or any participant member of the Depositary and/or beneficial owners, for any transfers of beneficial interests in the Series _ Notes, or in respect of any transfers effected by the Depositary or by any participant member of the Depositary or any beneficial owner of any interest in any Series _ Notes held through any such participant member of the Depositary.

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7. No service charge shall be made for the registration of transfer or exchange of the Series _ Notes; provided, however, that the Company may require payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in connection with the exchange or transfer;

8. If the Company shall make any deposit of money and/or Eligible Obligations with respect to any Series _ Notes, or any portion of the principal amount thereof, as contemplated by Section 701 of the Indenture, the Company shall not deliver an Officer's Certificate described in clause (z) in the first paragraph of said Section 701 unless the Company shall also deliver to the Trustee, together with such Officer's Certificate, either:

(A) an instrument wherein the Company, notwithstanding the satisfaction and discharge of its indebtedness in respect of the Series _ Notes, shall assume the obligation (which shall be absolute and unconditional) to irrevocably deposit with the Trustee or Paying Agent such additional sums of money, if any, or additional Eligible Obligations (meeting the requirements of Section 701), if any, or any combination thereof, at such time or times, as shall be necessary, together with the money and/or Eligible Obligations theretofore so deposited, to pay when due the principal of and premium, if any, and interest due and to become due on such Series _ Notes or portions thereof, all in accordance with and subject to the provisions of said
Section 701; provided, however, that such instrument may state that the obligation of the Company to make additional deposits as aforesaid shall be subject to the delivery to the Company by the Trustee of a notice asserting the deficiency accompanied by an opinion of an independent public accountant of nationally recognized standing, selected by the Trustee, showing the calculation thereof; or

(B) an Opinion of Counsel to the effect that, as a result of a change in law occurring after the date of this certificate, the Holders of such Series _ Notes, or portions of the principal amount thereof, will not recognize income, gain or loss for United States federal income tax purposes as a result of the satisfaction and discharge of the Company's indebtedness in respect thereof and will be subject to United States federal income tax on the same amounts, at the same times and in the same manner as if such satisfaction and discharge had not been effected.

9. The obligations of the Company under the Series _ Notes and under the Indenture to the extent related to such series will be subject to assignment by the Company to and assumption by a wholly owned Subsidiary of the Company at any time, as provided in the form of Series _ Notes set forth in Exhibit A hereto, provided, however, that the Company shall not make any such assignment unless the Company shall deliver to the Trustee an Opinion of Counsel to the effect that the Holders of such Series _ Notes, or portions of the principal amount thereof, will not recognize income, gain or loss for United States federal income tax purposes as a result of such assignment and assumption;

In the event that such Subsidiary assumes the obligations under the Series _ Notes, the Company will issue an unconditional guarantee of the Series _ Notes which guarantee shall be in form and substance satisfactory to the Trustee. Pursuant to the guarantee, the Company will remain fully and unconditionally liable for the payment obligations of such assuming Subsidiary under the Series _ Notes and under the Indenture, including, without limitation, payment, as and when due, of the principal of, premium, if any, and interest on, the Series _ Notes. Other than the obligation to make payments of the principal of, premium, if any, and interest on, the Series _ Notes and payments to the Trustee under Section 907 of the Indenture, the Company will be released and discharged from all of its other obligations under the Indenture. The foregoing assignment and assumption shall be in compliance with applicable law, including the Securities Act.

3

If the Company assigns its obligations under the Indenture to a Subsidiary, the guarantee will provide that if there is an Event of Default and the Holders are prevented by applicable law from exercising their rights to accelerate the maturity of the Series _ Notes, to collect interest on the Series _ Notes, or to enforce any other right or remedy with respect to the Series _ Notes, the Company will pay, upon demand, the amount that would otherwise have been due and payable had the exercise of such rights and remedies been permissible.

If the Company assigns its obligations under the Indenture to a Subsidiary that is organized in a foreign jurisdiction, it will also agree that all payments made by the Company pursuant to the Series _ Notes or its guarantee on the Series _ Notes will be made without withholding or deduction for any foreign taxes or other foreign governmental charges imposed with respect to payments on the Series _ Notes, unless such withholding or deduction is required by law. If any such withholding or deduction is made, the Company shall pay to each Holder of Series _ Notes the amount that would otherwise have been due to that Holder in the absence of such withholding or deduction, after any additional taxes or other charges payable in respect of such Company payment ("Additional Amounts"), except that no such Additional Amounts shall be payable:

(A) to or for a Holder who is liable for those foreign taxes or charges because of the Holder's connection with the relevant jurisdiction, whether as a citizen, a resident or a national of the jurisdiction or because the Holder carries on a business or maintains a permanent establishment there or is physically present there;

(B) to or for a Holder who presents a Series _ Note required to be presented for payment more than 30 days after the date on which payment first becomes due, unless that Holder would have been entitled to such Additional Amounts by presenting such security during the 30 day period;

(C) to or for a Holder who presents a Series _ Note, where presentation is required, at any place other than in The City of New York, unless the Company does not provide a place for presentation within The City of New York; or

(D) to or for a Holder who is liable for the tax or charge because the Holder failed to take appropriate and available steps to declare non-residence or request exemption from the relevant tax authority.

No Additional Amounts will be payable with respect to any Series _ Notes if the beneficial owner would not have been entitled to such payment if that beneficial owner had been a Holder;

10. The Series _ Notes shall have such other terms and provisions as are provided in the form thereof set forth in Exhibit A hereto, and shall be issued in substantially such form;

11. The undersigned has read all of the covenants and conditions contained in the Indenture, and the definitions in the Indenture relating thereto, relating to the issuance, authentication and delivery of the Series _ Notes and in respect of compliance with which this certificate is made;

12. The statements contained in this certificate are based upon the familiarity of the undersigned with the Indenture, the documents accompanying this certificate, and upon discussions by the undersigned with officers and employees of the Company familiar with the matters set forth herein;

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13. In the opinion of the undersigned, he has made such examination or investigation as is necessary to enable him to express an informed opinion as to whether or not such covenants and conditions have been complied with; and

14. In the opinion of the undersigned, such conditions and covenants and conditions precedent (including any covenants compliance with which constitutes a condition precedent) provided for in the Indenture relating to the authentication and delivery of the Series _ Notes requested in the accompanying Company Order _-D-_, have been complied with.

5

IN WITNESS WHEREOF, I have executed this Officer's Certificate this ____ day of _________, ____.



Treasurer

6

EXHIBIT A

[depository legend]

Unless this Certificate is presented by an authorized representative of The Depository Trust Company, a New York corporation ("DTC"), to the Company or its agent for registration of transfer, exchange, or payment, and any certificate issued is registered in the name of Cede & Co. or in such other name as is requested by an authorized representative of DTC (and any payment is made to Cede & Co. or to such other entity as is requested by an authorized representative of DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner hereof, Cede & Co., has an interest herein.

NO._______________ CUSIP NO.__________

[FORM OF FACE OF SERIES _ SENIOR NOTE]

TXU CORP.

__% [FLOATING RATE] SENIOR NOTES DUE ____________, ____

TXU CORP., a corporation duly organized and existing under the laws of the State of Texas (herein referred to as the "Company", which term includes any successor Person under the Indenture), for value received, hereby promises to pay to

or registered assigns, the principal sum of ____________________ Dollars on __________________, and to pay interest on said principal sum semi-annually on________ and _________ [quarterly on _____, _________, _________ and ___________ ] of each year commencing ___________, ____ (each an Interest Payment Date) at the per annum interest rate of __% [determined by the Calculation Agent on each Interest Determination Date, as such terms are defined herein],/2/ until the principal hereof is paid or made available for payment. Interest on the Securities of this series will accrue from ____________, ____, to the first Interest Payment Date, and thereafter will accrue from the last Interest Payment Date to which interest has been paid or duly provided for. In the event that any Interest Payment Date is not a Business Day, then payment of interest payable on such date will be made on the next succeeding day which is a Business Day (and without any interest or other payment in respect of such delay) with the same force and effect as if made on the Interest Payment Date. The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date will, as provided in such Indenture, be paid to the Person in whose name this Security (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest, which shall be the Business Day immediately preceding such Interest Payment Date, so long as the Securities of this Series are registered in the name of the securities depository, provided, however, that interest payable at Maturity will be paid to the Person to whom principal is paid. Any such interest


2 Applicable to Floating Rate Senior Notes.

A-1

not so punctually paid or duly provided for will forthwith cease to be payable to the Holder on such Regular Record Date and may either be paid to the Person in whose name this Security (or one or more Predecessor Securities) is registered at the close of business on a Special Record Date for the payment of such Defaulted Interest to be fixed by the Trustee, notice whereof shall be given to Holders of Securities of this series not less than 10 days prior to such Special Record Date, or be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Securities of this series may be listed, and upon such notice as may be required by such exchange, all as more fully provided in the Indenture referred to on the reverse hereof.

Payment of the principal of (and premium, if any) and interest on this Security will be made upon presentation at the office or agency of the Company maintained for that purpose in The City of New York, the State of New York in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts, provided, however, that, at the option of the Company, interest on this Security may be paid by check mailed to the address of the person entitled thereto, as such address shall appear on the Security Register or by wire transfer to an account designated by the Person entitled thereto; and provided further, that so long as the Securities of this series are registered in the name of The Depository Trust Company or a nominee thereof, all payments of principal and interest in respect of the Securities of this series will be made in immediately available funds.

Reference is hereby made to the further provisions of this Security set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if set forth at this place. Any capitalized term which is used herein and not otherwise defined shall have the meaning ascribed to such term in the Indenture.

Unless the certificate of authentication hereon has been executed by the Trustee referred to on the reverse hereof by manual signature, this Security shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purpose.

A-2

IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed.

TXU CORP.

By:________________________________

[FORM OF CERTIFICATE OF AUTHENTICATION]

CERTIFICATE OF AUTHENTICATION

This is one of the Securities of the series designated therein referred to in the within-mentioned Indenture.

Dated:

THE BANK OF NEW YORK, as Trustee

By:________________________________
Authorized Signatory

A-3

[FORM OF REVERSE OF SERIES _ SENIOR NOTE]

This Security is one of a duly authorized issue of securities of the Company (herein called the "Securities"), issued and to be issued in one or more series under an Indenture (For Unsecured Debt Securities Series _), dated as of ___________, ____ (herein, together with any amendments thereto, called the "Indenture", which term shall have the meaning assigned to it in such instrument), between the Company and The Bank of New York, as Trustee (herein called the "Trustee", which term includes any successor trustee under the Indenture), and reference is hereby made to the Indenture, including the Board Resolutions and Officer's Certificate filed with the Trustee on ____________, _____ creating the series designated on the face hereof, for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Trustee and the Holders of the Securities and of the terms upon which the Securities are, and are to be, authenticated and delivered.

[Interest Calculation Provisions, if applicable, will be inserted here]/3/

[Redemption provisions will be inserted here]

The Indenture contains provisions for defeasance at any time of the entire indebtedness of this Security upon compliance with certain conditions set forth in the Indenture including the Officer's Certificate described above.

If an Event of Default with respect to Securities of this series shall occur and be continuing, the principal of the Securities of this series may be declared due and payable in the manner and with the effect provided in the Indenture.

The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations of the Company and the rights of the Holders of the Securities of each series to be affected under the Indenture at any time by the Company and the Trustee with the consent of the Holders of a majority in principal amount of the Securities at the time Outstanding of all series to be affected. The Indenture contains provisions permitting the Holders of a majority in aggregate principal amount of the Securities of all series then Outstanding to waive compliance by the Company with certain provisions of the Indenture. The Indenture also contains provisions permitting the Holders of specified percentages in principal amount of the Securities of each series at the time Outstanding, on behalf of the Holders of all Securities of such series, to waive compliance by the Company with certain provisions of the Indenture and certain past defaults under the Indenture and their consequences. Any such consent or waiver by the Holder of this Security shall be conclusive and binding upon such Holder and upon all future Holders of this Security and of any Security issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation of such consent or waiver is made upon this Security.

As provided in and subject to the provisions of the Indenture, the Holder of this Security shall not have the right to institute any proceeding with respect to the Indenture or for the appointment of a receiver or trustee or for any other remedy thereunder, unless such Holder shall have previously given the Trustee written notice of a continuing Event of Default with respect to the Securities of this series, the Holders of a majority in aggregate principal amount of the Securities of all series at the time Outstanding in respect of which an Event of Default shall have occurred and be continuing shall have made written request to the Trustee to institute proceedings in respect of such Event


3 Applicable to Floating Rate Senior Notes.

A-4

of Default as Trustee and offered the Trustee reasonable indemnity, and the Trustee shall not have received from the Holders of a majority in aggregate principal amount of Securities of all series at the time Outstanding in respect of which an Event of Default shall have occurred and be continuing a direction inconsistent with such request, and shall have failed to institute any such proceeding, for 60 days after receipt of such notice, request and offer of indemnity. The foregoing shall not apply to any suit instituted by the Holder of this Security for the enforcement of any payment of principal hereof or any premium or interest hereon on or after the respective due dates expressed herein.

No reference herein to the Indenture and no provision of this Security or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of and any premium and interest on this Security at the times, place and rate, and in the coin or currency, herein prescribed.

The Securities of this series are issuable only in registered form without coupons in denominations of $____ and in integral multiples thereof. As provided in the Indenture and subject to certain limitations therein set forth, Securities of this series are exchangeable for a like aggregate principal amount of Securities of this series and of like tenor and of authorized denominations, as requested by the Holder surrendering the same.

No service charge shall be made for any such registration of transfer or exchange, but the Company may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith.

The Company, the Trustee and any agent of the Company or the Trustee may treat the Person in whose name this Security is registered as the absolute owner hereof for all purposes, whether or not this Security be overdue, and neither the Company, the Trustee nor any such agent shall be affected by notice to the contrary.

Unless an Event of Default, or an event which, after notice or lapse of time or both, would become an Event of Default, shall have occurred and be continuing, the obligations of the Company under the Securities of this series and the Indenture to the extent related to such series may be assigned by the Company to, and be assumed in whole, on a full recourse basis, by a wholly owned Subsidiary of the Company at any time; provided, however, that such assumption shall be subject to, and permitted only upon the fulfillment and satisfaction of, the following terms and conditions: (a) an assumption agreement and a supplemental indenture to the Indenture evidencing such assumption shall be in substance and form reasonably satisfactory to the Trustee and shall, inter alia, include modifications and amendments to the Indenture making the obligations under the Securities of this series and under the Indenture to the extent related to such series primary obligations of such Subsidiary, substituting such Subsidiary of the Company for the Company in the form of the Securities of this series and in provisions of the Indenture to the extent related to this series and releasing and discharging the Company from its obligations under the Securities of this series and the Indenture to the extent related to this series; and (b) the Trustee shall have received (i) an executed counterpart of such assumption agreement and supplemental indenture; (ii) evidence satisfactory to the Trustee and the Company that all necessary authorizations, consents, orders, approvals, waivers, filings and declarations of or with, Federal, state, county, municipal, regional or other governmental authorities, agencies or boards (collectively, "Governmental Actions") relating to such assumption have been duly obtained and are in full force and effect, (iii) evidence satisfactory to the Trustee that any security interest intended to be created by the Indenture is not in any material way adversely affected or impaired by any of the agreements or transactions relating to such assumption, (iv) an Opinion of Counsel to the effect that the Holders of the Securities of this series, or portions of the principal amount thereof, will not recognize income, gain or loss for United States federal income tax purposes as a result of such assignment and assumption and (v) an Opinion of Counsel for such Subsidiary,

A-5

reasonably satisfactory in substance, scope and form to the Trustee and the Company, to the effect that (A) the supplemental indenture evidencing such assumption has been duly authorized, executed and delivered by such Subsidiary, (B) the execution and delivery by such Subsidiary of such supplemental indenture and the consummation of the transactions contemplated thereby do not contravene any provision of law or any governmental rule applicable to such Subsidiary or any provision of such Subsidiary's charter documents or by-laws and do not contravene any provision of, or constitute a default under, or result in the creation or imposition of any lien upon any of such Subsidiary's properties or assets under any indenture, mortgage, contract or other agreement to which such Subsidiary is a party or by which such Subsidiary or any of its properties may be bound or affected, (C) all necessary Governmental Actions relating to such assumption have been duly obtained and are in full force and effect and (D) such agreement and supplemental indenture constitute the legal, valid and binding obligations of such Subsidiary, enforceable in accordance with their respective terms, except as such enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or other similar laws at the time in effect affecting the rights of creditors generally.

At the time of such assumption the Company will issue an unconditional guarantee of the Securities of this series which guarantee shall be in form and substance satisfactory to the Trustee. Pursuant to the guarantee, the Company will remain fully and unconditionally liable for the payment of the obligations of such assuming Subsidiary under the Securities of this series and under the Indenture, including, without limitation, payment, as and when due, of the principal of, premium, if any, and interest on, the Securities of this series. Other than the obligation to make payments of the principal of, premium, if any, and interest on the Securities of this series and payments to the Trustee under
Section 907 of the Indenture, the Company shall be released and discharged from all other obligations under the Indenture.

All terms used in this Security which are defined in the Indenture shall have the meanings assigned to them in the Indenture and in the Officer's Certificate establishing the terms of the Securities of this series.

A-6

ASSIGNMENT

FOR VALUE RECEIVED, the undersigned assigns and transfers this __% [Floating Rate] Senior Note due ________:

(Insert assignee's social security or tax identification number)

(Insert address and zip code of assignee)

and irrevocably appoints
agent to transfer this Security on the Security Register. The agent may substitute another to act for him or her.

Date: ____________________________________

Signature:_________________________

Signature Guarantee:_______________

(Sign exactly as your name appears on the other side of this Security)

SIGNATURE GUARANTEE

Signatures must be guaranteed by an "eligible guarantor institution" meeting the requirements of the Security Registrar, which requirements include membership or participation in the Security Transfer Agent Medallion Program ("STAMP") or such other "signature guarantee program" as may be determined by the Security Registrar in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended.

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EXHIBIT 4(i)


TXU CORP.

AND

THE BANK OF NEW YORK,

as Purchase Contract Agent

and Trustee

FORM OF PURCHASE CONTRACT AGREEMENT

Dated as of ____________



TIE SHEET

Section of                                                  Section of
Trust Indenture Act                                         Purchase Contract
of 1939, as amended                                         Agreement
-------------------                                         ------------


310(a)......................................................7.8
310(b)......................................................7.9(d) and (g), 11.8
310(c)......................................................Inapplicable
311(a)......................................................11.2(b)
311(b)......................................................11.2(b)
311(c)......................................................Inapplicable
312(a)......................................................11.2(a)
312(b)......................................................11.2(b)
313.........................................................11.3
314(a)......................................................11.4
314(b)......................................................Inapplicable
314(c)......................................................11.5
314(d)......................................................Inapplicable
314(e)......................................................1.2
314(f)......................................................11.1
315(a)......................................................7.1(a)
315(b)......................................................7.2
315(c)......................................................7.1(e)
315(d)(1)...................................................7.1(b)
315(d)(2)...................................................7.1(b)
315(d)(3)...................................................11.9
316(a)(1)(A)................................................11.9
316(a)(1)(B)................................................11.6
316(b)......................................................6.1
316(c)......................................................11.2
317(a)......................................................Inapplicable
317(b)......................................................Inapplicable
318(a)......................................................11.1(b)


-------------

* This Cross-Reference Table does not constitute part of the Purchase Contract Agreement and shall not affect the interpretation of any of its terms or provisions.

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                                TABLE OF CONTENTS

                                                                        Page No.

RECITALS.......................................................................1

ARTICLE I Definitions and Other Provisions of General Application..............1
   Section 1.1 Definitions.....................................................1
   Section 1.2 Compliance Certificates and Opinions...........................10
   Section 1.3 Form of Documents Delivered to Agent...........................11
   Section 1.4 Acts of Holders; Record Dates..................................11
   Section 1.5 Notices........................................................12
   Section 1.6 Notice to Holders; Waiver......................................13
   Section 1.7 Effect of Headings and Table of Contents.......................13
   Section 1.8 Successors and Assigns.........................................13
   Section 1.9 Separability Clause............................................14
   Section 1.10 Benefits of Agreement.........................................14
   Section 1.11 Governing Law.................................................14
   Section 1.12 Legal Holidays................................................14
   Section 1.13 Counterparts..................................................14
   Section 1.14 Inspection of Agreement.......................................14

ARTICLE II Certificate Forms..................................................15
   Section 2.1 Forms of Certificates Generally................................15
   Section 2.2 Form of Agent's Certificate of Authentication..................15

ARTICLE III The Securities....................................................16
   Section 3.1 Title and Terms; Denominations.................................16
   Section 3.2 Rights and Obligations Evidenced by the Certificates...........16
   Section 3.3 Execution, Authentication, Delivery and Dating.................16
   Section 3.4 Temporary Certificates.........................................17
   Section 3.5 Registration; Registration of Transfer and Exchange............18
   Section 3.6 Book-Entry Interests...........................................19
   Section 3.7 Notices to Holders.............................................19
   Section 3.8 Appointment of Successor Clearing Agency.......................19
   Section 3.9 Definitive Certificates........................................19
   Section 3.10 Mutilated, Destroyed, Lost and Stolen Certificates............20
   Section 3.11 Persons Deemed Owners.........................................21
   Section 3.12 Cancellation..................................................21
   Section 3.13 Establishment or Reestablishment of Treasury Units............21
   Section 3.14 Establishment or Reestablishment of Corporate Units...........23
   Section 3.15 Transfer of Collateral upon Occurrence of Termination Event...25
   Section 3.16 No Consent to Assumption......................................25

ARTICLE IV The Debt Securities................................................25
   Section 4.1 Payment of Interest; Rights to Interest Preserved;
               Interest Rate Reset; Notice....................................25
   Section 4.2 Notice and Voting..............................................27
   Section 4.3 Substitution of a Treasury Portfolio for Debt Securities.......27
   Section 4.4 Consent to Treatment for Tax Purposes..........................28


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ARTICLE V The Purchase Contracts..............................................28
   Section 5.1 Purchase of Shares of Common Stock.............................28
   Section 5.2 Contract Adjustment Payments...................................29
   Section 5.3 Deferral of Payment Dates For Contract Adjustment Payments.....30
   Section 5.4 Payment of Purchase Price......................................31
   Section 5.5 Issuance of Shares of Common Stock.............................34
   Section 5.6 Adjustment of Settlement Rate..................................34
   Section 5.7 Notice of Adjustments and Certain Other Events.................38
   Section 5.8 Termination Event; Notice......................................39
   Section 5.9 Early Settlement...............................................39
   Section 5.10 No Fractional Shares..........................................41
   Section 5.11 Charges and Taxes.............................................41

ARTICLE VI Remedies...........................................................41
   Section 6.1 Unconditional Right of Holders to Receive Contract
               Adjustment Payments and to Purchase Common Stock...............41
   Section 6.2 Restoration of Rights and Remedies.............................42
   Section 6.3 Rights and Remedies Cumulative.................................42
   Section 6.4 Delay or Omission Not Waiver...................................42
   Section 6.5 Undertaking for Costs..........................................42
   Section 6.6 Waiver of Stay or Extension Laws...............................42

ARTICLE VII The Agent.........................................................43
   Section 7.1 Certain Duties and Responsibilities............................43
   Section 7.2 Notice of Default..............................................44
   Section 7.3 Certain Rights of Agent........................................44
   Section 7.4 Not Responsible for Recitals or Issuance of Securities.........45
   Section 7.5 May Hold Securities............................................45
   Section 7.6 Money Held in Custody..........................................45
   Section 7.7 Compensation and Reimbursement.................................45
   Section 7.8 Corporate Agent Required; Eligibility..........................46
   Section 7.9 Resignation and Removal; Appointment of Successor..............46
   Section 7.10 Acceptance of Appointment by Successor........................47
   Section 7.11 Merger, Conversion, Consolidation or Succession
                to Business...................................................47
   Section 7.12 Preservation of Information; Communications to Holders........48
   Section 7.13 No Obligations of Agent.......................................48
   Section 7.14 Tax Compliance................................................48

ARTICLE VIII Supplemental Agreements..........................................49
   Section 8.1 Supplemental Agreements Without Consent of Holders.............49
   Section 8.2 Supplemental Agreements with Consent of Holders................49
   Section 8.3 Execution of Supplemental Agreements...........................50
   Section 8.4 Effect of Supplemental Agreements..............................50
   Section 8.5 Reference to Supplemental Agreements...........................50

ARTICLE IX Consolidation, Merger, Sale or Conveyance..........................51
   Section 9.1 Covenant Not to Merge, Consolidate, Sell or Convey
               Property Except Under Certain Conditions.......................51
   Section 9.2 Rights and Duties of Successor Entity..........................51
   Section 9.3 Opinion of Counsel Given to Agent..............................51


                                      iii

ARTICLE X Covenants...........................................................52
   Section 10.1 Performance Under Purchase Contracts..........................52
   Section 10.2 Maintenance of Office or Agency...............................52
   Section 10.3 Company to Reserve Common Stock...............................52
   Section 10.4 Covenants as to Common Stock..................................52

ARTICLE XI Trust Indenture Act................................................53
   Section 11.1 Trust Indenture Act; Application..............................53
   Section 11.2 Lists of Holders of Securities................................53
   Section 11.3 Reports by the Agent..........................................53
   Section 11.4 Periodic Reports to Agent.....................................53
   Section 11.5 Evidence of Compliance with Conditions Precedent..............53
   Section 11.6 Defaults; Waiver..............................................54
   Section 11.7 Agent's Knowledge of Defaults.................................54
   Section 11.8 Conflicting Interests.........................................54
   Section 11.9 Direction of Agent............................................54

EXHIBIT A

EXHIBIT B

EXHIBIT C

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PURCHASE CONTRACT AGREEMENT, dated as of _________________, between TXU Corp., a Texas corporation (the "Company"), and The Bank of New York, acting as purchase contract agent, attorney-in-fact and trustee for the Holders of Securities from time to time (in any one or more of such capacities, the "Agent").

RECITALS

The Company has duly authorized the execution and delivery of this Agreement and the Certificates evidencing the Securities.

All things necessary to make the Purchase Contracts, when the Certificates are executed by the Company and authenticated, executed on behalf of the Holders and delivered by the Agent, as provided in this Agreement, the valid obligations of the Company and the Holders, and to constitute these presents a valid agreement of the Company, in accordance with its terms, have been done.

WITNESSETH:

For and in consideration of the premises and the purchase of the Securities by the Holders thereof, it is mutually agreed as follows:

ARTICLE I

DEFINITIONS AND OTHER PROVISIONS
OF GENERAL APPLICATION

SECTION 1.1 DEFINITIONS.

For all purposes of this Agreement, except as otherwise expressly provided or unless the context otherwise requires:

(a) the terms defined in this Article have the meanings assigned to them in this Article and include the plural as well as the singular; and nouns and pronouns of the masculine gender include the feminine and neuter genders;

(b) all accounting terms not otherwise defined herein have the meanings assigned to them in accordance with generally accepted accounting principles in the United States;

(c) the words "herein," "hereof" and "hereunder" and other words of similar import refer to this Agreement as a whole and not to any particular Article, Section or other subdivision; and

(d) the following terms have the meanings given to them in this Section 1.1(d):

"ACT" when used with respect to any Holder, has the meaning specified in Section 1.4.

"AFFILIATE" has the same meaning as given to that term in Rule 405 of the Securities Act of 1933, as amended, or any successor rule thereunder.

"AGENT" means the Person named as the "Agent" in the first paragraph of this instrument until a successor Agent shall have become such pursuant to the applicable provisions of this Agreement, and thereafter "Agent" shall mean such Person.

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"AGREEMENT" means this instrument as originally executed or as it may from time to time be supplemented or amended by one or more agreements supplemental hereto entered into pursuant to the applicable provisions hereof.

"APPLICABLE BENCHMARK TREASURY" on a particular determination date shall mean __________________________________.

"APPLICABLE MARKET VALUE" has the meaning specified in Section 5.1.

"APPLICABLE OWNERSHIP INTEREST" means___________________________.

"APPLICABLE PRINCIPAL AMOUNT" means _____________________________.

"AUTHORIZED OFFICER" means the Chairman of the Board, the President, any Vice President, the Treasurer, any Assistant Treasurer, or any other officer or agent of the Company duly authorized by the Board of Directors to act in respect of matters relating to this Agreement.

"AUTHORIZED NEWSPAPER" means a newspaper in the English language of general circulation in the City of New York and generally published each Business Day. As of the date of this Agreement, the Company anticipates that for purposes of each Reset Announcement Date, the Authorized Newspaper will be the Wall Street Journal.

"BANKRUPTCY CODE" means title 11 of the United States Code, or any other law of the United States that from time to time provides a uniform system of bankruptcy laws.

"BENEFICIAL OWNER" means, with respect to a Book-Entry Interest, a Person who is the beneficial owner of such Book-Entry Interest as reflected on the books of the Clearing Agency or on the books of a Person maintaining an account with such Clearing Agency (directly as a Clearing Agency Participant or as an indirect participant, in each case in accordance with the rules of such Clearing Agency).

"BOARD OF DIRECTORS" means the board of directors of the Company or a duly authorized committee of that board.

"BOARD RESOLUTION" means one or more resolutions of the Board of Directors, a copy of which has been certified by the Secretary or an Assistant Secretary of the Company to have been duly adopted by the Board of Directors and to be in full force and effect on the date of such certification and delivered to the Agent.

"BOOK-ENTRY INTEREST" means a beneficial interest in a Global Certificate, ownership and transfers of which shall be maintained and made through book entries by a Clearing Agency as described in Section 3.6.

"BUSINESS DAY" means any day other than a Saturday, Sunday or any other day on which banking institutions in New York City (in the State of New York) are permitted or required by any applicable law to close.

"CASH SETTLEMENT" has the meaning set forth in Section 5.4(a)(i).

"CERTIFICATE" means a Corporate Unit Certificate or a Treasury Unit Certificate.

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"CLEARING AGENCY" means an organization registered as a "Clearing Agency" pursuant to Section 17A of the Exchange Act that is acting as a depositary for the Securities and in whose name, or in the name of a nominee of that organization, shall be registered as a Global Certificate and which shall undertake to effect book entry transfers and pledges of the Securities.

"CLEARING AGENCY PARTICIPANT" means a broker, dealer, bank, other financial institution or other Person for whom from time to time the Clearing Agency effects book entry transfers and pledges of securities deposited with the Clearing Agency.

"CLOSING PRICE" has the meaning specified in Section 5.1.

"COLLATERAL" has the meaning specified in Section 2.1 of the Pledge Agreement.

"COLLATERAL AGENT" means ___________________, as Collateral Agent under the Pledge Agreement until a successor Collateral Agent shall have become such pursuant to the applicable provisions of the Pledge Agreement, and thereafter "Collateral Agent" shall mean the Person who is then the Collateral Agent thereunder.

"COLLATERAL SUBSTITUTION" means the substitution of the pledged components of one type of Security for pledged components of the other type of Security in connection with establishment or reestablishment of Treasury Units or Corporate Units, as described in Sections 3.13 and 3.14 hereof.

"COMMON STOCK" means the Common Stock, without par value, of the Company, including, where applicable, the preference stock purchase rights appurtenant thereto.

"COMPANY" means the Person named as the "Company" in the first paragraph of this instrument until a successor shall have become such pursuant to the applicable provision of this Agreement, and thereafter "Company" shall mean such successor.

"COMPANY CERTIFICATE" means a certificate signed by an Authorized Officer and delivered to the Agent.

"CONTRACT ADJUSTMENT PAYMENTS" means the amounts payable by the Company in respect of each Purchase Contract issued in connection with the Corporate Units and the Treasury Units, which amounts shall be equal to _____% per annum of the Stated Amount; computed on the basis of a 360-day year of twelve 30-day months, plus any Deferred Contract Adjustment Payments accrued pursuant to
Section 5.2.

"CORPORATE TRUST OFFICE" means the corporate trust office of the Agent at which, at any particular time, its corporate trust business shall be principally administered, which office at the date hereof is located at 101 Barclay Street, Floor 8W, New York, New York 10286.

"CORPORATE UNIT" means a Security, initially issued in substantially the form set forth as Exhibit A hereto in the Stated Amount of $__, which represents _______________________________.

"CORPORATE UNIT CERTIFICATE" means a certificate evidencing the rights and obligations of a Holder in respect of the number of Corporate Units specified on such certificate.

"CORPORATE UNIT REGISTER" and "CORPORATE UNIT REGISTRAR" have the

respective meanings specified in Section 3.5.

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"COUPON RATE" with respect to a Debt Security means the percentage rate per annum at which such Debt Security will bear interest.

"CURRENT MARKET PRICE" has the meaning specified in Section 5.6(a)(8).

"DEBT SECURITIES" means the series of debt securities of the Company to be designated "Series __ Senior Notes due ____________" issued under the Indenture.

"DEFAULT" means a default by the Company in any of its obligations under this Agreement.

"DEFERRED CONTRACT ADJUSTMENT PAYMENTS" has the meaning specified in
Section 5.3.

"DEPOSITARY" means, initially, DTC until another Clearing Agency becomes its successor.

"DTC" means The Depository Trust Company, the initial Clearing Agency.

"EARLY SETTLEMENT" has the meaning specified in Section 5.9(a).

"EARLY SETTLEMENT AMOUNT" has the meaning specified in Section 5.9(a).

"EARLY SETTLEMENT DATE" has the meaning specified in Section 5.9(a).

"EARLY SETTLEMENT RATE" has the meaning specified in Section 5.9(b).

"EXCHANGE ACT" means the Securities Exchange Act of 1934 and any statute successor thereto, in each case as amended from time to time, and the rules and regulations promulgated thereunder.

"EXPIRATION DATE" has the meaning specified in Section 1.4.

"EXPIRATION TIME" has the meaning specified in Section 5.6(a)(6).

"FAILED REMARKETING" means a remarketing that does not occur because a condition precedent to such remarketing is not fulfilled, or if in spite of using their reasonable efforts, the Remarketing Agents cannot remarket the Debt Securities of Holders of Corporate Units at a price not less than 100% of the Remarketing Treasury Portfolio Purchase Price, in the case of the remarketing of Debt Securities on the Initial Remarketing Date, or 100% of the aggregate principal amount of such Debt Securities, in the case of the remarketing of Debt Securities on the Secondary Remarketing Date, in each case, plus accrued and unpaid interest.

"GLOBAL CERTIFICATE" means a Certificate that evidences all or part of the Securities and is registered in the name of a Depositary or a nominee thereof.

"HOLDER," when used with respect to a Security, means the Person in whose name the Security evidenced by a Corporate Unit Certificate and/or a Treasury Unit Certificate is registered on the Corporate Unit Register and/or the Treasury Unit Register, as the case may be.

"INDENTURE" means the Indenture (For Unsecured Debt Securities Series _) dated as of ____________ between the Company and the Indenture Trustee pursuant to which the Debt Securities are to be issued, as originally executed and delivered and as it may from time to time be supplemented or amended by one or more indentures supplemental thereto entered into pursuant to the applicable

4

provisions thereof and shall include the terms of a particular series of securities established as contemplated by Section 301 thereof.

"INDENTURE TRUSTEE" means The Bank of New York, as trustee under the Indenture, or any successor thereto.

"INITIAL REMARKETING DATE" means the third Business Day immediately preceding the Initial Reset Date.

"INITIAL RESET DATE" means ___________________________________________.

"ISSUER ORDER" or "ISSUER REQUEST" means a written order or request signed in the name of the Company by an Authorized Officer and delivered to the Agent.

"NYSE" has the meaning specified in Section 5.1.

"OFFICER'S CERTIFICATE" means a certificate signed by an authorized signatory of the Company establishing the terms of the debt securities of any series pursuant to the Indenture.

"OPINION OF COUNSEL" means an opinion in writing signed by legal counsel, who may be an employee of or counsel to the Company or an Affiliate and who shall be reasonably acceptable to the Agent.

"OUTSTANDING," with respect to any Corporate Units or Treasury Units means, as of the date of determination, all Corporate Units or Treasury Units evidenced by Certificates theretofore authenticated, executed and delivered under this Agreement, except:

(i) If a Termination Event has occurred, (A) Treasury Units for which Treasury Securities have been deposited with the Agent in trust for the Holders of such Treasury Units and (B) Corporate Units for which Debt Securities or the appropriate Applicable Ownership Interest in a Treasury Portfolio (or as contemplated in Section 3.15 hereto with respect to a Holder's interest in the Treasury Portfolio, cash) has been theretofore deposited with the Agent in trust for the Holders of such Corporate Units;

(ii) Corporate Units and Treasury Units evidenced by Certificates theretofore cancelled by the Agent or delivered to the Agent for cancellation or deemed cancelled pursuant to the provisions of this Agreement; and

(iii) Corporate Units and Treasury Units evidenced by Certificates in exchange for or in lieu of which other Certificates have been authenticated, executed on behalf of the Holder and delivered pursuant to this Agreement, other than any such Certificate in respect of which there shall have been presented to the Agent proof satisfactory to it that such Certificate is held by a bona fide purchaser in whose hands the Corporate Units or Treasury Units evidenced by such Certificate are valid obligations of the Company;

provided, however, that in determining whether the Holders of the requisite number of the Corporate Units or Treasury Units have given any request, demand, authorization, direction, notice, consent or waiver hereunder, Corporate Units or Treasury Units owned by the Company or any Affiliate of the Company shall be disregarded and deemed not to be outstanding, except that, in determining whether the Agent shall be protected in relying upon any such request, demand, authorization, direction, notice, consent or waiver, only Corporate Units or Treasury Units which a Responsible Officer of the Agent

5

actually knows to be so owned shall be so disregarded. Corporate Units or Treasury Units so owned which have been pledged in good faith may be regarded as Outstanding Securities if the pledgee establishes to the satisfaction of the Agent the pledgee's right so to act with respect to such Corporate Units or Treasury Units and that the pledgee is not the Company or any Affiliate of the Company.

"PAYMENT DATE" means each of [(i)] _______, ______, _________ and ___________, commencing _______________ [and (ii)_____________________________].

"PERMITTED INVESTMENTS" has the meaning set forth in Article I of the Pledge Agreement.

"PERSON" means a legal person, including any individual, corporation, estate, partnership, joint venture, association, joint-stock company, limited liability company, trust, unincorporated association or government or any agency or political subdivision thereof or any other entity of whatever nature.

"PLEDGE" means the pledge under the Pledge Agreement of the Debt Securities, the Treasury Securities or the appropriate Applicable Ownership Interest in a Treasury Portfolio, in each case constituting a part of the Securities.

"PLEDGE AGREEMENT" means the Pledge Agreement, dated as of the date hereof, by and among the Company, the Agent, as purchase contract agent and as attorney-in-fact for the Holders from time to time of Securities, and the Collateral Agent, as the collateral agent, the custodial agent and the securities intermediary.

"PLEDGED APPLICABLE OWNERSHIP INTEREST IN A TREASURY PORTFOLIO" has the

meaning specified in Section 2.1 of the Pledge Agreement.

"PLEDGED DEBT SECURITIES" has the meaning specified in Section 2.1 of the Pledge Agreement.

"PLEDGED TREASURY SECURITIES" has the meaning specified in Section 2.1 of the Pledge Agreement.

"PREDECESSOR CERTIFICATE" means a Predecessor Corporate Unit Certificate or a Predecessor Treasury Unit Certificate.

"PREDECESSOR CORPORATE UNIT CERTIFICATE" of any particular Corporate Unit Certificate means every previous Corporate Unit Certificate evidencing all or a portion of the rights and obligations of the Company and the Holder under the Corporate Units evidenced thereby; and, for the purposes of this definition, any Corporate Unit Certificate authenticated and delivered under Section 3.10 in exchange for or in lieu of a mutilated, destroyed, lost or stolen Corporate Unit Certificate shall be deemed to evidence the same rights and obligations of the Company and the Holder as the mutilated, destroyed, lost or stolen Corporate Unit Certificate.

"PREDECESSOR TREASURY UNIT CERTIFICATE" of any particular Treasury Unit Certificate means every previous Treasury Unit Certificate evidencing all or a portion of the rights and obligations of the Company and the Holder under the Treasury Units evidenced thereby; and, for the purposes of this definition, any Treasury Unit Certificate authenticated and delivered under Section 3.10 in exchange for or in lieu of a mutilated, destroyed, lost or stolen Treasury Unit Certificate shall be deemed to evidence the same rights and obligations of the

6

Company and the Holder as the mutilated, destroyed, lost or stolen Treasury Unit Certificate.

"PRIMARY TREASURY DEALER" means a primary U.S. government securities dealer in New York City.

"PROCEEDS" has the meaning set forth in Article I of the Pledge Agreement.

"PURCHASE CONTRACT," when used with respect to any Security, means the contract forming a part of such Security and obligating the Company (A) to sell to the Holder of such Security and the Holder of such Security to purchase not later than the Purchase Contract Settlement Date, for $__ in cash, a number of newly issued shares of Common Stock equal to the applicable Settlement Rate, and (B) to pay the Holder Contract Adjustment Payments on the terms and subject to the conditions set forth in Article Five hereof.

"PURCHASE CONTRACT SETTLEMENT DATE" means ____________.

"PURCHASE CONTRACT SETTLEMENT FUND" has the meaning specified in
Section 5.5.

"PURCHASE PRICE" has the meaning specified in Section 5.1.

"PURCHASED SHARES" has the meaning specified in Section 5.6(a)(6).

"QUOTATION AGENT" means (i) _____________________________________ or its successor, provided, however, that, if the foregoing shall cease to be a Primary Treasury Dealer, the Company shall substitute therefor another Primary Treasury Dealer, and (ii) any other Primary Treasury Dealer selected by the Company.

"RECORD DATE" for the payment of interest, distribution and Contract Adjustment Payments payable on any Payment Date means, as to any Global Certificate, the Business Day next preceding such Payment Date, and as to any other Certificate, a day selected by the Company which shall be at least one Business Day but not more than 60 Business Days prior to such Payment Date (and which shall correspond to the related record date for the Debt Securities).

"REDEMPTION AMOUNT" means for each Debt Security, the product of (i) the principal amount of such Debt Security and (ii) a fraction whose numerator is the applicable Treasury Portfolio Purchase Price and whose denominator is the Applicable Principal Amount.

"REDEMPTION PRICE" means an amount per Debt Security equal to the Redemption Amount plus accrued and unpaid interest, if any, to the date of redemption.

"REGISTER" means the Corporate Unit Register and the Treasury Unit Register.

"REGISTRAR" means the Corporate Unit Registrar and the Treasury Unit Registrar.

"REMARKETING AGENTS" has the meaning specified in Section 5.4.

"REMARKETING AGREEMENT" means a Remarketing Agreement contemplated by
Section 5.4 by and between the Company, the Remarketing Agents and the Purchase Contract Agent, including any supplements thereto.

7

"REMARKETING FEE" means an amount not exceeding __ basis points (.__%) of (i) the applicable Treasury Portfolio Purchase Price, in the case of any successful remarketing of Debt Securities on the Initial Remarketing Date, or
(ii) the aggregate principal amount of the remarketed Debt Securities, in the case of any successful remarketing of Debt Securities on the Secondary Remarketing Date.

"REMARKETING TREASURY PORTFOLIO" means ______________________________.

"REMARKETING TREASURY PORTFOLIO PURCHASE PRICE" means the lowest aggregate price quoted by a Primary Treasury Dealer to the Quotation Agent on the third Business Day immediately preceding the Initial Reset Date for the purchase of the Remarketing Treasury Portfolio for settlement on the Initial Reset Date.

"REORGANIZATION EVENT" has the meaning specified in Section 5.6(b).

"RESET AGENT" means __________________________________________________, or such other Reset Agent as the Company shall select from time to time.

"RESET ANNOUNCEMENT DATE" means the seventh Business Day immediately preceding the Reset Date, the date on which the Reset Spread, and the Applicable Benchmark Treasury will be announced by the Company.

"RESET DATE" means the Initial Reset Date, or if the remarketing of the Debt Securities on the Initial Remarketing Date results in a Failed Remarketing, ____________.

"RESET RATE" means the Coupon Rate to be in effect for the Debt Securities on and after the Reset Date and determined as provided in Section 4.1.

"RESET SPREAD" means_______________________________________________.

"RESPONSIBLE OFFICER," when used with respect to the Agent, means any Vice President, Assistant Vice President, Trust Officers or other officer of the Agent assigned by the Agent to the Corporate Trust Administration Division of the Agent (or any successor division or department of the Agent).

"SECONDARY REMARKETING DATE" means the third Business Day immediately preceding ____________.

"SECURITY" means a Corporate Unit or a Treasury Unit.

"SENIOR INDEBTEDNESS" means indebtedness of any kind of the Company (including the Debt Securities) unless the instrument under which such indebtedness is incurred expressly provides that it is in parity or subordinate in right of payment to the Contract Adjustment Payments.

"SETTLEMENT RATE" has the meaning specified in Section 5.1.

"STATED AMOUNT" means $__, which is equal to the stated amount of a Corporate Unit and the face amount of a Treasury Unit.

"TAX EVENT" means the receipt by the Company of an opinion of a nationally recognized independent tax counsel experienced in such matters to the effect that, as a result of (a) any amendment to, change in, or announced proposed change in, the laws (or any regulations thereunder) of the United

8

States or any political subdivision or taxing authority thereof or therein affecting taxation, (b) any amendment to or change in an interpretation or application of any such laws or regulations by any legislative body, court, governmental agency or regulatory authority or (c) any interpretation or pronouncement by any such legislative body, court, governmental agency or regulatory authority that provides for a position with respect to any such laws or regulations that differs from the generally accepted position on ________________, which amendment, change or proposed change is effective or which interpretation or pronouncement is announced on or after ______________, there is more than an insubstantial risk that interest payable by the Company on the Debt Securities would not be deductible, in whole or in part, by the Company for United States federal income tax purposes.

"TAX EVENT REDEMPTION" means, if a Tax Event shall occur and be continuing, the redemption of Debt Securities, in whole but not in part, at the option of the Company on not less than 30 days nor more than 60 days notice.

"TAX EVENT REDEMPTION DATE" means the date on which a Tax Event Redemption is to occur.

"TAX EVENT TREASURY PORTFOLIO" means ___________________________.

"TAX EVENT TREASURY PORTFOLIO PURCHASE PRICE" means _______________.

"TERMINATION DATE" means the date, if any, on which a Termination Event occurs.

"TERMINATION EVENT" means the occurrence of any of the following events: (i) at any time on or prior to the Purchase Contract Settlement Date, a judgment, decree or court order shall have been entered granting relief under the Bankruptcy Code, adjudicating the Company to be insolvent, or approving as properly filed a petition seeking reorganization or liquidation of the Company or any other similar applicable Federal or State law, and, unless such judgment, decree or order shall have been entered within 60 days prior to the Purchase Contract Settlement Date, such decree or order shall have continued undischarged and unstayed for a period of 60 days; or (ii) at any time on or prior to the Purchase Contract Settlement Date, a judgment, decree or court order for the appointment of a receiver or liquidator or trustee or assignee in bankruptcy or insolvency of the Company or of its property, or for the winding up or liquidation of its affairs, shall have been entered, and, unless such judgment, decree or order shall have been entered within 60 days prior to the Purchase Contract Settlement Date, such judgment, decree or order shall have continued undischarged and unstayed for a period of 60 days; or (iii) at any time on or prior to the Purchase Contract Settlement Date the Company shall file a petition for relief under the Bankruptcy Code, or shall consent to the filing of a bankruptcy proceeding against it, or shall file a petition or answer or consent seeking reorganization or liquidation under the Bankruptcy Code or any other similar applicable Federal or State law, or shall consent to the filing of any such petition, or shall consent to the appointment of a receiver or liquidator or trustee or assignee in bankruptcy or insolvency of it or of its property, or shall make an assignment for the benefit of creditors, or shall admit in writing its inability to pay its debts generally as they become due.

"THRESHOLD APPRECIATION PRICE" has the meaning specified in Section 5.1.

"TIA" means, as of any time, the Trust Indenture Act of 1939, as amended, or any successor statute, as in effect at such time.

"TRADING DAY" has the meaning specified in Section 5.1.

9

"TREASURY PORTFOLIO" means the receipt by the Company of an opinion of a nationally recognized independent tax counsel experienced in such matters to the effect that, as a result of (a) any amendment to, change in, or announced proposed change in, the laws (or any regulations thereunder) of the United States or any political subdivision or taxing authority thereof or therein affecting taxation, (b) any amendment to or change in an interpretation or application of any such laws or regulations by any legislative body, court, governmental agency or regulatory authority or (c) any interpretation or pronouncement by any such legislative body, court, governmental agency or regulatory authority that provides for a position with respect to any such laws or regulations that differs from the generally accepted position on __________________, which amendment, change or proposed change is effective or which interpretation or pronouncement is announced on or after ____________, there is more than an insubstantial risk that interest payable by the Company on the Debt Securities would not be deductible, in whole or in part, by the Company for United States federal income tax purposes.

"TREASURY PORTFOLIO PURCHASE PRICE" means, as applicable, the Remarketing Treasury Portfolio Purchase Price or the Tax Event Treasury Portfolio Purchase Price.

"TREASURY SECURITY" means a zero-coupon U.S. Treasury security having a principal amount at maturity equal to $[1,000] and maturing on ____________ (CUSIP No. _________).

"TREASURY UNITS" means a Security, initially issued in substantially the form set forth as Exhibit B hereto in a Stated Amount of $__, which represents _________________________________.

"TREASURY UNIT CERTIFICATE" means a certificate evidencing the rights and obligations of a Holder in respect of the number of Treasury Units specified on such certificate.

"TREASURY UNIT REGISTER" and "TREASURY UNIT REGISTRAR" have the

respective meanings specified in Section 3.5.

"UNDERWRITING AGREEMENT" means the Underwriting Agreement dated ____________ relating to the Corporate Units among the Company and _____________________________________.

"VICE PRESIDENT" means any vice president, whether or not designated by a number or a word or words added before or after the title "vice president."

SECTION 1.2 COMPLIANCE CERTIFICATES AND OPINIONS.

Except as otherwise expressly provided by this Agreement, upon any application or request by the Company to the Agent to take any action under any provision of this Agreement, the Company shall furnish to the Agent a Company Certificate stating that in the opinion of the Authorized Officer signing such Company Certificate all conditions precedent, if any, provided for in this Agreement relating to the proposed action have been complied with and an Opinion of Counsel stating that, in the opinion of such counsel, all such conditions precedent, if any, have been complied with, except that in the case of any such application or request as to which the furnishing of such documents is specifically required by any provision of this Agreement relating to such particular application or request, no additional certificate or opinion need be furnished.

Every certificate or opinion with respect to compliance with a condition or covenant provided for in this Agreement shall include:

(1) a statement that each individual signing such certificate or opinion has read such covenant or condition and the definitions herein relating thereto;

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(2) a brief statement as to the nature and scope of the examination or investigation upon which the statements or opinions contained in such certificate or opinion are based;

(3) a statement that, in the opinion of each such individual, he or she has made such examination or investigation as is necessary to enable such individual to express an informed opinion as to whether or not such covenant or condition has been complied with; and

(4) a statement as to whether, in the opinion of each such individual, such condition or covenant has been complied with.

SECTION 1.3 FORM OF DOCUMENTS DELIVERED TO AGENT.

In any case where several matters are required to be certified by, or covered by an opinion of, any specified Person, it is not necessary that all such matters be certified by, or covered by the opinion of, only one such Person, or that they be so certified or covered by only one document, but one such Person may certify or give an opinion with respect to some matters and one or more other such Persons as to other matters, and any such Person may certify or give an opinion as to such matters in one or several documents.

Any certificate or opinion of an officer of the Company may be based, insofar as it relates to legal matters, upon a certificate or opinion of, or representations by, counsel, unless such officer knows, or in the exercise of reasonable care should know, that the certificate or opinion or representations with respect to the matters upon which his certificate or opinion is based are erroneous. Any such certificate or Opinion of Counsel may be based, insofar as it relates to factual matters, upon a certificate or opinion of, or representations by, an officer or officers of the Company stating that the information with respect to such factual matters is in the possession of the Company unless such counsel knows, or in the exercise of reasonable care should know, that the certificate or opinion or representations with respect to such matters are erroneous.

Where any Person is required to make, give or execute two or more applications, requests, consents, certificates, statements, opinions or other instruments under this Agreement, they may, but need not, be consolidated and form one instrument.

SECTION 1.4 ACTS OF HOLDERS; RECORD DATES.

(a) Any request, demand, authorization, direction, notice, consent, waiver or other action provided by this Agreement to be given or taken by Holders may be embodied in and evidenced by one or more instruments of substantially similar tenor signed by such Holders in person or by agent duly appointed in writing; and, except as herein otherwise expressly provided, such action shall become effective when such instrument or instruments are delivered to the Agent and, where it is hereby expressly required, to the Company. Such instrument or instruments (and the action embodied therein and evidenced thereby) are herein sometimes referred to as the "Act" of the Holders signing such instrument or instruments. Proof of execution of any such instrument or of a writing appointing any such agent shall be sufficient for any purpose of this Agreement and (subject to
Section 7.1) conclusive in favor of the Agent and the Company, if made in the manner provided in this Section.

(b) The fact and date of the execution by any Person of any such instrument or writing may be proved in any manner which the Agent deems sufficient.

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(c) The ownership of Securities shall be proved by the Corporate Unit Register or the Treasury Unit Register, as the case may be.

(d) Any request, demand, authorization, direction, notice, consent, waiver or other Act of the Holder of any Certificate shall bind every future Holder of the same Certificate and the Holder of every Certificate issued upon the registration of transfer thereof or in exchange therefor or in lieu thereof in respect of anything done, omitted or suffered to be done by the Agent or the Company in reliance thereon, whether or not notation of such action is made upon such Certificate.

(e) The Company may set any day as a record date for the purpose of determining the Holders of Outstanding Securities entitled to give, make or take any request, demand, authorization, direction, notice, consent, waiver or other action provided or permitted by this Agreement to be given, made or taken by Holders of Securities. If any record date is set pursuant to this paragraph, the Holders of the Outstanding Corporate Units and the Outstanding Treasury Units, as the case may be, on such record date, and no other Holders, shall be entitled to take the relevant action with respect to the Corporate Units or the Treasury Units, as the case may be, whether or not such Holders remain Holders after such record date; provided that no such action shall be effective hereunder unless taken on or prior to the applicable Expiration Date by Holders of the requisite number of Outstanding Securities on such record date. Nothing in this paragraph shall be construed to prevent the Company from setting a new record date for any action for which a record date has previously been set pursuant to this paragraph (whereupon the record date previously set shall automatically and with no action by any Person be cancelled and of no effect), and nothing in this paragraph shall be construed to render ineffective any action taken by Holders of the requisite number of Outstanding Securities on the date such action is taken. Promptly after any record date is set pursuant to this paragraph, the Company, at its own expense, shall cause notice of such record date, the proposed action by Holders and the applicable Expiration Date to be given to the Agent in writing and to each Holder of Securities in the manner set forth in Section 1.6.

With respect to any record date set pursuant to this Section, the Company may designate any date as the "Expiration Date" and from time to time may change the Expiration Date to any earlier or later day; provided that no such change shall be effective unless notice of the proposed new Expiration Date is given to the Agent in writing, and to each Holder of Securities in the manner set forth in Section 1.6, on or prior to the existing Expiration Date. If an Expiration Date is not designated with respect to any record date set pursuant to this Section, the Company shall be deemed to have initially designated the 180th day after such record date as the Expiration Date with respect thereto, subject to its right to change the Expiration Date as provided in this paragraph. Notwithstanding the foregoing, no Expiration Date shall be later than the 180th day after the applicable record date.

SECTION 1.5 NOTICES.

Any request, demand, authorization, direction, notice, consent, waiver or Act of Holders or other document provided or permitted by this Agreement to be made upon, given or furnished to, or filed with,

(1) the Agent by any Holder or by the Company shall be sufficient for every purpose hereunder (unless otherwise herein expressly provided) if made, given, furnished or filed in writing and personally delivered or mailed, first-class postage prepaid, to the Agent at The Bank of New York, 101 Barclay Street, New York, New York 10286, Attention: Vice President,

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Corporate Trust Administration, or at any other address previously furnished in writing by the Agent to the Holders and the Company;

(2) the Company by the Agent or by any Holder shall be sufficient for every purpose hereunder (unless otherwise herein expressly provided) if made, given, furnished or filed in writing and personally delivered or mailed, first-class postage prepaid, to the Company at TXU Corp., Energy Plaza, 1601 Bryan Street, Dallas, Texas 75201, Attention: Secretary, or at any other address previously furnished in writing to the Agent by the Company;

(3) the Collateral Agent by the Agent, the Company or any Holder shall be sufficient for every purpose hereunder (unless otherwise herein expressly provided) if made, given, furnished or filed in writing and personally delivered or mailed, first-class postage prepaid, addressed to the Collateral Agent at ________________________________________________, Attention: _____________________, or at any other address previously furnished in writing by the Collateral Agent to the Agent, the Company and the Holders; or

(4) the Indenture Trustee by the Company shall be sufficient for every purpose hereunder (unless otherwise herein expressly provided) if made, given, furnished or filed in writing and personally delivered or mailed, first-class postage prepaid, addressed to the Indenture Trustee at The Bank of New York, 101 Barclay Street, New York, New York 10286, Attention: Vice President, Corporate Trust Administration, or at any other address previously furnished in writing by the Indenture Trustee to the Company.

SECTION 1.6 NOTICE TO HOLDERS; WAIVER.

Where this Agreement provides for notice to Holders of any event, such notice shall be sufficiently given (unless otherwise herein expressly provided) if in writing and mailed, first-class postage prepaid, to each Holder affected by such event, at its address as it appears in the applicable Register, not later than the latest date, and not earlier than the earliest date, prescribed for the giving of such notice. In any case where notice to Holders is given by mail, neither the failure to mail such notice, nor any defect in any notice so mailed to any particular Holder shall affect the sufficiency of such notice with respect to other Holders. Where this Agreement provides for notice in any manner, such notice may be waived in writing by the Person entitled to receive such notice, either before or after the event, and such waiver shall be the equivalent of such notice. Waivers of notice by Holders shall be filed with the Agent, but such filing shall not be a condition precedent to the validity of any action taken in reliance upon such waiver.

In case by reason of the suspension of regular mail service or by reason of any other cause it shall be impracticable to give such notice by mail, then such notification as shall be made with the approval of the Agent shall constitute a sufficient notification for every purpose hereunder.

SECTION 1.7 EFFECT OF HEADINGS AND TABLE OF CONTENTS.

The Article and Section headings herein and the Table of Contents are for convenience only and shall not affect the construction hereof.

SECTION 1.8 SUCCESSORS AND ASSIGNS.

All covenants and agreements in this Agreement by the Company shall bind its successors and assigns, whether so expressed or not.

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SECTION 1.9 SEPARABILITY CLAUSE.

In case any provision in this Agreement or in the Securities shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions hereof and thereof shall not in any way be affected or impaired thereby.

SECTION 1.10 BENEFITS OF AGREEMENT.

Nothing in this Agreement or in the Securities, express or implied, shall give to any Person, other than the parties hereto and their successors hereunder and, to the extent provided hereby, the Holders, any benefits or any legal or equitable right, remedy or claim under this Agreement. The Holders from time to time shall be beneficiaries of this Agreement and shall be bound by all of the terms and conditions hereof and of the Securities evidenced by their Certificates by their acceptance of delivery of such Certificates.

SECTION 1.11 GOVERNING LAW.

THIS AGREEMENT AND THE SECURITIES SHALL BE GOVERNED BY AND CONSTRUED IN

ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

SECTION 1.12 LEGAL HOLIDAYS.

In any case where any Payment Date shall not be a Business Day, then (notwithstanding any other provision of this Agreement or the Corporate Unit Certificates or the Treasury Unit Certificates) payment of the Contract Adjustment Payments, if any, shall not be made on such date, but such payments shall be made on the next succeeding Business Day with the same force and effect as if made on such Payment Date, and no interest shall accrue or be payable by the Company or any Holder for the period from and after any such Payment Date, except that, if such next succeeding Business Day is in the next succeeding calendar year, such payment shall be made on the immediately preceding Business Day with the same force and effect as if made on such Payment Date.

In any case where the Purchase Contract Settlement Date shall not be a Business Day, then (notwithstanding any other provision of this Agreement, the Corporate Unit Certificates or the Treasury Unit Certificates), the Purchase Contracts shall not be performed on such date, but the Purchase Contracts shall be performed on the immediately following Business Day with the same force and effect as if performed on the Purchase Contract Settlement Date.

SECTION 1.13 COUNTERPARTS.

This Agreement may be executed in any number of counterparts by the parties hereto on separate counterparts, each of which, when so executed and delivered, shall be deemed an original, but all such counterparts shall together constitute one and the same instrument.

SECTION 1.14 INSPECTION OF AGREEMENT.

A copy of this Agreement shall be available at all reasonable times during normal business hours at the Corporate Trust Office for inspection by any Holder.

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ARTICLE II

CERTIFICATE FORMS

SECTION 2.1 FORMS OF CERTIFICATES GENERALLY.

The Corporate Unit Certificates (including the form of Purchase Contract forming part of the Corporate Units evidenced thereby) shall be in substantially the form set forth in Exhibit A hereto, with such letters, numbers or other marks of identification or designation and such legends or endorsements printed, lithographed or engraved thereon as may be required by the rules of any securities exchange on which the Corporate Units are listed or any depositary therefor, or as may, consistently herewith, be determined by the officers of the Company executing such Corporate Unit Certificates, as evidenced by their execution of the Corporate Unit Certificates.

The definitive Corporate Unit Certificates shall be printed, lithographed or engraved on steel engraved borders or may be produced in any other manner, all as determined by the officers of the Company executing the Corporate Units evidenced by such Corporate Unit Certificates, consistent with the provisions of this Agreement, as evidenced by their execution thereof.

The Treasury Unit Certificates (including the form of Purchase Contracts forming part of the Treasury Units evidenced thereby) shall be in substantially the form set forth in Exhibit B hereto, with such letters, numbers or other marks of identification or designation and such legends or endorsements printed, lithographed or engraved thereon as may be required by the rules of any securities exchange on which the Treasury Units may be listed or any depositary therefor, or as may, consistently herewith, be determined by the officers of the Company executing such Treasury Unit Certificates, as evidenced by their execution of the Treasury Unit Certificates.

The definitive Treasury Unit Certificates shall be printed, lithographed or engraved on steel engraved borders or may be produced in any other manner, all as determined by the officers of the Company executing the Treasury Units evidenced by such Treasury Unit Certificates, consistent with the provisions of this Agreement, as evidenced by their execution thereof.

Every Global Certificate authenticated, executed on behalf of the Holders and delivered hereunder shall bear a legend in substantially the following form:

THIS CERTIFICATE IS A GLOBAL CERTIFICATE WITHIN THE MEANING OF THE PURCHASE CONTRACT AGREEMENT (AS HEREINAFTER DEFINED) AND IS REGISTERED IN THE NAME OF THE CLEARING AGENCY OR A NOMINEE THEREOF. THIS CERTIFICATE MAY NOT BE EXCHANGED IN WHOLE OR IN PART FOR A CERTIFICATE REGISTERED, AND NO TRANSFER OF THIS CERTIFICATE IN WHOLE OR IN PART MAY BE REGISTERED, IN THE NAME OF ANY PERSON OTHER THAN SUCH CLEARING AGENCY OR A NOMINEE THEREOF, EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE PURCHASE CONTRACT AGREEMENT.

SECTION 2.2 FORM OF AGENT'S CERTIFICATE OF AUTHENTICATION.

The form of the Agent's certificate of authentication of the Corporate Units shall be in substantially the form set forth on the form of the Corporate Unit Certificates set forth as Exhibit A hereto.

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The form of the Agent's certificate of authentication of the Treasury Units shall be in substantially the form set forth on the form of the Treasury Unit Certificates set forth as Exhibit B hereto.

ARTICLE III

THE SECURITIES

SECTION 3.1 TITLE AND TERMS; DENOMINATIONS.

The aggregate number of Corporate Units and Treasury Units evidenced by Certificates authenticated, executed on behalf of the Holders and delivered hereunder is limited to _________ units [(or __________ if the overallotment option provided for in the Underwriting Agreement is exercised in full)] except for Certificates authenticated, executed and delivered upon registration of transfer of, in exchange for, or in lieu of, other Certificates pursuant to
Section 3.4, 3.5, 3.10, 3.12, 3.13, 5.9 or 8.5.

The Certificates shall be issuable only in registered form and only in denominations of a single Corporate Unit or Treasury Unit and any integral multiple thereof.

SECTION 3.2 RIGHTS AND OBLIGATIONS EVIDENCED BY THE CERTIFICATES.

Each Corporate Unit Certificate shall evidence the number of Corporate Units specified therein, with each such Corporate Unit representing the ownership by the Holder thereof of a beneficial interest in a Debt Security or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, subject to the Pledge of such Debt Security or Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, by such Holder pursuant to the Pledge Agreement, and the rights and obligations of the Holder thereof and the Company under one Purchase Contract. The Agent as attorney-in-fact for, and on behalf of, the Holder of each Corporate Unit shall pledge, pursuant to the Pledge Agreement, each Debt Security or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, forming a part of such Corporate Unit, to the Collateral Agent and grant to the Collateral Agent a security interest in the right, title, and interest of such Holder in such Debt Security or Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, for the benefit of the Company, to secure the obligation of the Holder under one Purchase Contract to purchase the Common Stock of the Company.

Each Treasury Unit Certificate shall evidence the number of Treasury Units specified therein, with each such Treasury Unit representing the ownership by the Holder thereof of a [1/20], or [5%], undivided beneficial interest in a Treasury Security, subject to the Pledge of such Treasury Security by such Holder pursuant to the Pledge Agreement, and the rights and obligations of the Holder thereof and the Company under one Purchase Contract. The Agent as attorney-in-fact for, and on behalf of, the Holder of each Treasury Unit shall pledge, pursuant to the Pledge Agreement, each Treasury Security forming a part of such Treasury Unit, to the Collateral Agent and grant to the Collateral Agent a security interest in the right, title, and interest of such Holder in such Treasury Security for the benefit of the Company, to secure the obligation of the Holder under one Purchase Contract to purchase the Common Stock of the Company.

SECTION 3.3 EXECUTION, AUTHENTICATION, DELIVERY AND DATING.

Subject to the provisions of Sections 3.13 and 3.14 hereof, upon the execution and delivery of this Agreement, and at any time and from time to time thereafter, the Company may deliver Certificates executed by the Company to the Agent for authentication, execution on behalf of the Holders and delivery, together with its Issuer Order for authentication of such Certificates, and the

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Agent in accordance with such Issuer Order shall authenticate, execute on behalf of the Holders and deliver such Certificates.

The Certificates shall be executed on behalf of the Company by its Chairman of the Board, its President, one of its Vice Presidents, its Treasurer, one of its Assistant Treasurers, its Secretary or one of its Assistant Secretaries. The signature of any of these officers on the Certificates may be manual or facsimile.

Certificates bearing the manual or facsimile signatures of individuals who were at any time the proper officers of the Company shall bind the Company, notwithstanding that such individuals or any of them have ceased to hold such offices prior to the authentication and delivery of such Certificates or did not hold such offices at the date of such Certificates.

No Purchase Contract evidenced by a Certificate shall be valid until such Certificate has been executed on behalf of the Holder by the manual signature of an authorized signatory of the Agent, as such Holder's attorney-in-fact. Such signature by an authorized signatory of the Agent shall be conclusive evidence that the Holder of such Certificate has entered into the Purchase Contracts evidenced by such Certificate.

Each Certificate shall be dated the date of its authentication.

No Certificate shall be entitled to any benefit under this Agreement or be valid or obligatory for any purpose unless there appears on such Certificate a certificate of authentication substantially in the form provided for herein executed by an authorized signatory of the Agent by manual signature, and such certificate upon any Certificate shall be conclusive evidence, and the only evidence, that such Certificate has been duly authenticated and delivered hereunder.

SECTION 3.4 TEMPORARY CERTIFICATES.

Pending the preparation of definitive Certificates, the Company shall execute and deliver to the Agent, and the Agent shall authenticate, execute on behalf of the Holders, and deliver, in lieu of such definitive Certificates, temporary Certificates which are in substantially the forms set forth in Exhibit A and Exhibit B hereto, with such letters, numbers or other marks of identification or designation and such legends or endorsements printed, lithographed or engraved thereon as may be required by the rules of any securities exchange on which the Corporate Units or Treasury Units are listed, or as may, consistently herewith, be determined by the officers of the Company executing such Certificates, as evidenced by their execution of the Certificates.

If temporary Certificates are issued, the Company will cause definitive Certificates to be prepared without unreasonable delay. After the preparation of definitive Certificates, the temporary Certificates shall be exchangeable for definitive Certificates upon surrender of the temporary Certificates at the Corporate Trust Office, at the expense of the Company and without charge to the Holder. Upon surrender for cancellation of any one or more temporary Certificates, the Company shall execute and deliver to the Agent, and the Agent shall authenticate, execute on behalf of the Holder, and deliver in exchange therefor, one or more definitive Certificates of like tenor and denominations and evidencing a like number of Corporate Units or Treasury Units, as the case may be, as the temporary Certificate or Certificates so surrendered. Until so exchanged, the temporary Certificates shall in all respects evidence the same benefits and the same obligations with respect to the Corporate Units or Treasury Units, as the case may be, evidenced thereby as definitive Certificates.

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SECTION 3.5 REGISTRATION; REGISTRATION OF TRANSFER AND EXCHANGE.

The Agent shall keep at the Corporate Trust Office a register (the "Corporate Unit Register") in which, subject to such reasonable regulations as it may prescribe, the Agent shall provide for the registration of Corporate Unit Certificates and of transfers of Corporate Unit Certificates (the Agent, in such capacity, the "Corporate Unit Registrar") and a register (the "Treasury Unit Register") in which, subject to such reasonable regulations as it may prescribe, the Agent shall provide for the registration of the Treasury Unit Certificates and of transfers of Treasury Unit Certificates (the Agent, in such capacity, the "Treasury Unit Registrar").

Upon surrender for registration of transfer of any Certificate at the Corporate Trust Office, the Company shall execute and deliver to the Agent, and the Agent shall authenticate, execute on behalf of the designated transferee or transferees, and deliver, in the name of the designated transferee or transferees, one or more new Certificates of any authorized denominations, like tenor, and evidencing a like number of Corporate Units or Treasury Units as the case may be.

At the option of the Holder, Certificates may be exchanged for other Certificates, of any authorized denominations and evidencing a like number of Corporate Units or Treasury Units, as the case may be, upon surrender of the Certificates to be exchanged at the Corporate Trust Office. Whenever any Certificates are so surrendered for exchange, the Company shall execute and deliver to the Agent, and the Agent shall authenticate, execute on behalf of the Holder, and deliver the Certificates which the Holder making the exchange is entitled to receive.

All Certificates issued upon any registration of transfer or exchange of a Certificate shall evidence the ownership of the same number of Corporate Units or Treasury Units, as the case may be, and be entitled to the same benefits and subject to the same obligations, under this Agreement as the Corporate Units or Treasury Units, as the case may be, evidenced by the Certificate surrendered upon such registration of transfer or exchange.

Every Certificate presented or surrendered for registration of transfer or for exchange shall (if so required by the Company or the Agent) be duly endorsed, or be accompanied by a written instrument of transfer in form satisfactory to the Company and the Agent, duly executed by the Holder thereof or its attorney duly authorized in writing.

No service charge shall be made for any registration of transfer or exchange of a Certificate, but the Company and the Agent may require payment from the Holder of a sum sufficient to cover any tax or other governmental charge that may be imposed in connection with any registration of transfer or exchange of Certificates, other than any exchanges pursuant to Sections 3.6 and 8.5 not involving any transfer.

Notwithstanding the foregoing, the Company will not be obligated to execute and deliver to the Agent, and the Agent will not be obligated to authenticate, execute on behalf of the Holder and deliver any Certificate presented or surrendered for registration of transfer or for exchange on or after the Business Day immediately preceding the Purchase Contract Settlement Date or on or after the Termination Date. In lieu of delivery of a new Certificate, upon satisfaction of the applicable conditions specified above in this Section and receipt of appropriate registration or transfer instructions from such Holder, the Agent shall (i) if the Purchase Contract Settlement Date has occurred, deliver the shares of Common Stock issuable in respect of the Purchase Contracts forming a part of the Securities evidenced by such Certificate, (ii) in the case of Corporate Units, if a Termination Event shall have occurred prior to the Purchase Contract Settlement Date, transfer the aggregate principal amount of the Debt Securities or the aggregate Stated Amount of the appropriate Treasury Portfolio, as applicable, evidenced thereby, or

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(iii) in the case of Treasury Units, if a Termination Event shall have occurred prior to the Purchase Contract Settlement Date, transfer the Treasury Securities evidenced thereby, in each case subject to the applicable conditions and in accordance with the applicable provisions of Article V hereof.

SECTION 3.6 BOOK-ENTRY INTERESTS.

The Certificates, on original issuance, will be issued in the form of one or more fully registered Global Certificates, to be delivered to the Depositary or a nominee or custodian thereof by, or on behalf of, the Company. Such Global Certificates shall initially be registered on the books and records of the Company in the name of Cede & Co., the nominee of the Depositary, and no Beneficial Owner will receive a definitive Certificate representing such Beneficial Owner's interest in such Global Certificate, except as provided in
Section 3.9. The Agent shall enter into an agreement with the Depositary if so requested by the Company. Unless and until definitive, fully registered Certificates have been issued to Beneficial Owners pursuant to Section 3.9:

(a) the provisions of this Section 3.6 shall be in full force and effect;

(b) the Company shall be entitled to deal with the Clearing Agency for all purposes of this Agreement (including the payment of Contract Adjustment Payments, if any, and receiving approvals, votes or consents hereunder) as the Holder of the Securities and the sole holder of the Global Certificate(s) and shall have no obligation to the Beneficial Owners;

(c) to the extent that the provisions of this Section 3.6 conflict with any other provisions of this Agreement, the provisions of this Section 3.6 shall control; and

(d) the rights of the Beneficial Owners shall be exercised only through the Clearing Agency and shall be limited to those established by law and agreements between such Beneficial Owners and the Clearing Agency and/or the Clearing Agency Participants. The Clearing Agency will make book entry transfers among Clearing Agency Participants and receive and transmit payments of Contract Adjustment Payments to such Clearing Agency Participants.

SECTION 3.7 NOTICES TO HOLDERS.

Whenever a notice or other communication to the Holders is required to be given under this Agreement, the Company or the Company's agent shall give such notices and communications to the Holders and, with respect to any Certificates registered in the name of a Clearing Agency or the nominee of a Clearing Agency, the Company or the Company's agent shall, except as set forth herein, have no obligations to the Beneficial Owners.

SECTION 3.8 APPOINTMENT OF SUCCESSOR CLEARING AGENCY.

If any Clearing Agency elects to discontinue its services as securities depositary with respect to the Securities, the Company may, in its sole discretion, appoint a successor Clearing Agency with respect to the Securities.

SECTION 3.9 DEFINITIVE CERTIFICATES.

If (i) a Clearing Agency elects to discontinue its services as securities depositary with respect to the Securities and a successor Clearing Agency is not appointed within 90 days after such discontinuance pursuant to
Section 3.8, or (ii) the Company elects to terminate the book-entry system through the Clearing Agency with respect to the Securities, then upon surrender of the Global Certificates representing the Book-Entry Interests with respect to

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the Securities by the Clearing Agency, accompanied by registration instructions, the Company shall cause definitive Certificates to be delivered to Beneficial Owners in accordance with the instructions of the Clearing Agency. The Company shall not be liable for any delay in delivery of such instructions and may conclusively rely on and shall be protected in relying on, such instructions.

SECTION 3.10 MUTILATED, DESTROYED, LOST AND STOLEN CERTIFICATES.

If any mutilated Certificate is surrendered to the Agent, the Company shall execute and deliver to the Agent, and the Agent shall authenticate, execute on behalf of the Holder, and deliver in exchange therefor, a new Certificate at the cost of the Holder, evidencing the same number of Corporate Units or Treasury Units, as the case may be, and bearing a Certificate number not contemporaneously outstanding.

If there shall be delivered to the Company and the Agent (i) evidence to their satisfaction of the destruction, loss or theft of any Certificate, and
(ii) such security or indemnity at the cost of the Holder as may be required by them to hold each of them and any agent of either of them harmless, then, in the absence of notice to the Company or the Agent that such Certificate has been acquired by a bona fide purchaser, the Company shall execute and deliver to the Agent, and the Agent shall authenticate, execute on behalf of the Holder, and deliver to the Holder, in lieu of any such destroyed, lost or stolen Certificate, a new Certificate, evidencing the same number of Corporate Units or Treasury Units, as the case may be, and bearing a Certificate number not contemporaneously outstanding.

Notwithstanding the foregoing, the Company will not be obligated to execute and deliver to the Agent, and the Agent will not be obligated to authenticate, execute on behalf of the Holder and deliver any Certificate on or after the Business Day immediately preceding the Purchase Contract Settlement Date or on or after the Termination Date. In addition, in lieu of delivery of a new Certificate, upon satisfaction of the applicable conditions specified above in this Section and receipt of appropriate registration or transfer instructions from such Holder, the Agent may (i) if the Purchase Contract Settlement Date has occurred, deliver the shares of Common Stock issuable in respect of the Purchase Contracts forming a part of the Securities evidenced by such Certificate, or
(ii) if a Termination Event shall have occurred, transfer the Debt Securities, the Applicable Ownership Interest in the appropriate Treasury Portfolio or the Treasury Securities, as the case may be, forming a part of the Securities represented by such Certificate to such Holder, in each case subject to the applicable conditions and in accordance with the applicable provisions of Article Five hereof.

Upon the issuance of any new Certificate under this Section, the Company and the Agent may require payment from the Holder of a sum sufficient to cover any tax or other governmental charge that may be imposed in relation thereto and any other expenses (including the fees and expenses of the Agent) connected therewith.

Every new Certificate issued pursuant to this Section in lieu of any destroyed, lost or stolen Certificate shall constitute an original additional contractual obligation of the Company and of the Holder in respect of the Security evidenced thereby, whether or not the destroyed, lost or stolen Certificate (and the Securities evidenced thereby) shall be at any time enforceable by anyone, and shall be entitled to all the benefits and be subject to all the obligations of this Agreement equally and proportionately with any and all other Certificates delivered hereunder.

The provisions of this Section are exclusive and shall preclude (to the extent lawful) all other rights and remedies with respect to the replacement or payment of mutilated, destroyed, lost or stolen Certificates.

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SECTION 3.11 PERSONS DEEMED OWNERS.

Prior to due presentment of a Certificate for registration of transfer, the Company and the Agent, and any agent of the Company or the Agent, may treat the Person in whose name such Certificate is registered on the Corporate Units Register or the Treasury Units Register, as applicable, as the owner of the Corporate Units or Treasury Units evidenced thereby, for the purpose of receiving interest on the Debt Securities or distributions on the maturing quarterly interest strips of the appropriate Treasury Portfolio, as applicable, receiving payments of Contract Adjustment Payments, performance of the Purchase Contracts and for all other purposes whatsoever, whether or not any interest on the Debt Securities or the Contract Adjustment Payments payable in respect of the Purchase Contracts constituting a part of the Corporate Units or Treasury Units evidenced thereby shall be overdue and notwithstanding any notice to the contrary, and neither the Company nor the Agent, nor any agent of the Company or the Agent, shall be affected by notice to the contrary.

Notwithstanding the foregoing, with respect to any Global Certificate, nothing herein shall prevent the Company, the Agent or any agent of the Company or the Agent, from treating the Clearing Agency as the sole Holder of such Global Certificate or from giving effect to any written certification, proxy or other authorization furnished by any Clearing Agency (or its nominee), as a Holder, with respect to such Global Certificate or impair, as between such Clearing Agency and owners of beneficial interests in such Global Certificate, the operation of customary practices governing the exercise of rights of such Clearing Agency (or its nominee) as Holder of such Global Certificate.

SECTION 3.12 CANCELLATION.

All Certificates surrendered for delivery of shares of Common Stock on or after the Purchase Contract Settlement Date, upon the transfer of Debt Securities, the Applicable Ownership Interest in the appropriate Treasury Portfolio or Treasury Securities, as the case may be, after the occurrence of a Termination Event or pursuant to an Early Settlement, or upon the registration of a transfer or exchange of a Security, or a Collateral Substitution or the re-establishment of a Corporate Unit shall, if surrendered to any Person other than the Agent, be delivered to the Agent and, if not already cancelled, shall be promptly cancelled by it. The Company may at any time deliver to the Agent for cancellation any Certificates previously authenticated, executed and delivered hereunder which the Company may have acquired in any manner whatsoever, and all Certificates so delivered shall, upon Issuer Order, be promptly cancelled by the Agent. No Certificates shall be authenticated, executed on behalf of the Holder and delivered in lieu of or in exchange for any Certificates cancelled as provided in this Section, except as expressly permitted by this Agreement. All cancelled Certificates held by the Agent shall upon written request be returned to the Company.

If the Company or any Affiliate of the Company shall acquire any Certificate, such acquisition shall not operate as a cancellation of such Certificate unless and until such Certificate is delivered to the Agent cancelled or for cancellation.

SECTION 3.13 ESTABLISHMENT OR REESTABLISHMENT OF TREASURY UNITS.

A Holder of a Corporate Unit may, at any time on or prior to the fifth Business Day immediately preceding the Purchase Contract Settlement Date, create or recreate a Treasury Unit and separate the Debt Security or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as applicable, from the related Purchase Contract in respect of such Corporate Unit by substituting a Treasury Security for the Debt Security, or the Applicable Ownership Interest in the appropriate Treasury Portfolio, that form a part of such Corporate Unit in accordance with this Section 3.13; provided, however, that if a successful remarketing of the Debt Securities has occurred on the Initial Remarketing Date

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or a Tax Event Redemption has occurred, Holders of such Corporate Units may make such Collateral Substitutions at any time on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. Holders may make Collateral Substitutions and establish Treasury Units (i) only in integral multiples of __ Corporate Units if only Debt Securities are being substituted by Treasury Securities, or (ii) only in integral multiples of ______ Corporate Units if the Applicable Ownership Interests in the appropriate Treasury Portfolio are being substituted by Treasury Securities. To create __ Treasury Units (if a Tax Event Redemption has not occurred and the Debt Securities remain a component of the Corporate Units), or ______ Treasury Units (if a Tax Event Redemption has occurred or the Remarketing Treasury Portfolio has replaced the Debt Securities as a component of the Corporate Units as a result of a successful remarketing of such Debt Securities), the Corporate Unit Holder shall

(a) if a Treasury Portfolio has not replaced any Debt Securities as a component of Corporate Units as a result of a successful remarketing of the Debt Securities or a Tax Event Redemption, deposit with the Collateral Agent a Treasury Security having a principal amount at maturity of $[1,000]; or

(b) if a Treasury Portfolio has replaced the Debt Securities as a component of Corporate Units as a result of a successful remarketing of the Debt Securities or a Tax Event Redemption, on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent Treasury Securities having an aggregate principal amount at maturity of $_________; and

(c) in each case, transfer and surrender the related __ Corporate Units, or, in the event a Treasury Portfolio is a component of Corporate Units, ______ Corporate Units, to the Agent accompanied by a notice to the Agent, substantially in the form of Exhibit B to the Pledge Agreement, stating that the Holder has transferred the relevant types and amounts of Treasury Securities to the Collateral Agent and requesting that the Agent instruct the Collateral Agent to release the applicable Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, underlying such Corporate Unit, whereupon the Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A to the Pledge Agreement.

Upon receipt of the Treasury Securities described in clause (a) or (b) above and the instructions described in clause (c) above, in accordance with the terms of the Pledge Agreement, the Collateral Agent will release from the Pledge, to the Agent, on behalf of the Holder, Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, that had been components of such Corporate Unit, free and clear of the Company's security interest therein, and upon receipt thereof the Agent shall promptly:

(i) cancel the related Corporate Units surrendered and transferred;

(ii) transfer the Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, that had been components of such Corporate Unit to the Holder; and

(iii) authenticate, execute on behalf of such Holder and deliver a Treasury Unit Certificate executed by the Company in accordance with Section 3.3 evidencing the same number of Purchase Contracts as were evidenced by the cancelled Corporate Units.

Holders who elect to separate the Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, from the related Purchase Contracts and to substitute Treasury Securities for

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such Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, shall be responsible for any fees or expenses payable to the Collateral Agent for its services as Collateral Agent in respect of the substitution, and the Company shall not be responsible for any such fees or expenses.

In the event a Holder making a Collateral Substitution pursuant to this
Section 3.13 fails to effect a book-entry transfer of the Corporate Units or fails to deliver a Corporate Unit Certificate to the Agent after depositing the appropriate Treasury Securities with the Collateral Agent, the Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, constituting a part of such Corporate Unit, and any interest on such Debt Securities or distributions with respect to the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, shall be held in the name of the Agent or its nominee in trust for the benefit of such Holder, until such Corporate Unit is so transferred or the Corporate Unit Certificate is so delivered, as the case may be, or, until such Holder provides evidence satisfactory to the Company and the Agent that such Corporate Unit Certificate has been destroyed, lost or stolen, together with any indemnity that may be required by the Agent and the Company.

Except as described in this Section 3.13, for so long as the Purchase Contract underlying a Corporate Unit remains in effect, such Corporate Unit shall not be separable into its constituent parts, and the rights and obligations of the Holder in respect of the Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, and Purchase Contract comprising such Corporate Unit may be acquired, and may be transferred and exchanged, only as an entire Corporate Unit.

SECTION 3.14 ESTABLISHMENT OR REESTABLISHMENT OF CORPORATE UNITS.

A Holder of a Treasury Unit may, at any time on or prior to the fifth Business Day immediately preceding the Purchase Contract Settlement Date, create or recreate a Corporate Unit by depositing with the Collateral Agent a Debt Security or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, having an aggregate principal amount equal to the aggregate principal amount at maturity of, and in substitution for all, but not less than all, of the Treasury Securities comprising part of the Treasury Unit in accordance with this Section 3.14; provided, however, that if a Treasury Portfolio has replaced the Debt Securities as a component of Corporate Units as a result of a successful remarketing of the Debt Securities or a Tax Event Redemption, such Collateral Substitutions may be made at any time on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. Holders of Treasury Units may make such Collateral Substitutions and establish Corporate Units (i) only in integral multiples of __ Treasury Units if Treasury Securities are being replaced by only Debt Securities, or (ii) only in integral multiples of ______ Treasury Units if any Treasury Security is being replaced by the Applicable Ownership Interest in the appropriate Treasury Portfolio. To create __ Corporate Units (if a Tax Event Redemption has not occurred and the Debt Securities remain components of Corporate Units), or ______ Corporate Units (if a Tax Event Redemption has occurred or the Remarketing Treasury Portfolio has replaced the Debt Securities as a result of a successful remarketing of such Debt Securities), the Treasury Unit Holder shall

(a) if a Treasury Portfolio has not replaced the Debt Securities as a component of Corporate Units as a result of a successful remarketing of the Debt Securities on the Initial Remarketing Date or a Tax Event Redemption, on or prior to the fifth Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent $[1,000] in aggregate principal amount of Debt Securities; or

(b) if a Treasury Portfolio has replaced the Debt Securities as a component of Corporate Units as a result of a successful remarketing of the Debt Securities or a Tax Event Redemption, on or prior to the second Business Day

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immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent the Applicable Ownership Interest in the Treasury Portfolio for each ______ Corporate Units being created by the Holder, and having an aggregate principal amount of $_________; and

(c) in each case, transfer and surrender the related __ Treasury Units, or in the event the Treasury Portfolio is a component of Corporate Units, ______ Corporate Units, to the Agent accompanied by a notice to the Agent, substantially in the form of Exhibit B to the Pledge Agreement, stating that the Holder has transferred the relevant amount of Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, to the Collateral Agent and requesting that the Agent instruct the Collateral Agent to release the Treasury Securities underlying such Treasury Units, whereupon the Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A to the Pledge Agreement.

Upon receipt of the Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, described in clause (a) or (b) above and the instructions described in clause (c) above, in accordance with the terms of the Pledge Agreement, the Collateral Agent will effect the release of the Treasury Securities having a corresponding aggregate principal amount from the Pledge to the Agent free and clear of the Company's security interest therein, and upon receipt thereof the Agent shall promptly:

(i) cancel the related Treasury Units surrendered and transferred;

(ii) transfer the Treasury Securities that had been components of such Treasury Units to the Holder; and

(iii) authenticate, execute on behalf of such Holder and deliver a Corporate Unit Certificate executed by the Company in accordance with Section 3.3 evidencing the same number of Purchase Contracts as were evidenced by the cancelled Treasury Units.

Holders who elect to separate Treasury Securities from the related Purchase Contract and to substitute Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, for such Treasury Securities shall be responsible for any fees or expenses payable to the Collateral Agent for its services as Collateral Agent in respect of the substitution, and the Company shall not be responsible for any such fees or expenses.

In the event a Holder making a Collateral Substitution pursuant to this
Section 3.14 fails to effect a book-entry transfer of the Treasury Units or fails to deliver a Treasury Unit Certificate to the Agent after depositing the Debt Securities or Applicable Ownership Interest in the appropriate Treasury Portfolio with the Collateral Agent, the Treasury Securities constituting a part of such Treasury Unit Certificate, and any interest on such Treasury Securities, shall be held in the name of the Agent or its nominee in trust for the benefit of such Holder, until such Treasury Unit is so transferred or the Treasury Unit is so delivered, or until such Holder provides evidence satisfactory to the Company and the Agent that such Treasury Unit has been destroyed, lost or stolen, together with any indemnity that may be required by the Agent and the Company.

Except as provided in this Section 3.14, for so long as the Purchase Contract underlying a Treasury Unit remains in effect, such Treasury Unit shall not be separable into its constituent parts and the rights and obligations of the Holder of such Treasury Unit in respect of the Treasury Security and Purchase Contract comprising such Treasury Unit may be acquired, and may be transferred and exchanged only as an entire Treasury Unit.

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SECTION 3.15 TRANSFER OF COLLATERAL UPON OCCURRENCE OF TERMINATION EVENT.

Upon the occurrence of a Termination Event and the transfer to the Agent of the Debt Securities, the Applicable Ownership Interest in the appropriate Treasury Portfolio or the Treasury Securities, as the case may be, underlying the Corporate Units and the Treasury Units pursuant to the terms of the Pledge Agreement, the Agent shall request transfer instructions with respect to such Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio or Treasury Securities, as the case may be, from each Holder by written request mailed to such Holder at its address as it appears in the Corporate Unit Register or the Treasury Unit Register, as the case may be. Upon book-entry transfer of a Corporate Unit Certificate or Treasury Unit Certificate or delivery of a Corporate Unit Certificate or Treasury Unit Certificate to the Agent with such transfer instructions, the Agent shall transfer the Debt Securities, the Applicable Ownership Interest in the appropriate Treasury Portfolio or Treasury Securities, as the case may be, underlying such Corporate Units or Treasury Units, as the case may be, to such Holder by book-entry transfer, or other appropriate procedures, in accordance with such instructions. In the event a Holder of Corporate Units or Treasury Units fails to effect such transfer or delivery, the Debt Securities, the Applicable Ownership Interest in the appropriate Treasury Portfolio or Treasury Securities, as the case may be, underlying such Corporate Units or Treasury Units, as the case may be, and any interest thereon, shall be held in the name of the Agent or its nominee in trust for the benefit of such Holder, until such Corporate Units or Treasury Units are transferred or the Corporate Unit Certificate or Treasury Unit Certificate is surrendered or such Holder provides satisfactory evidence that such Corporate Unit Certificate or Treasury Unit Certificate has been destroyed, lost or stolen, together with any indemnity that may be required by the Agent and the Company. In the case of a Treasury Portfolio or any Treasury Securities, the Agent may dispose of the subject securities for cash and pay the applicable portion of such cash to the Holders in lieu of such Holders' Applicable Ownership Interest in such Treasury Portfolio, or any Treasury Securities, where such Holder would otherwise have been entitled to receive less than $[1,000] of any such security.

SECTION 3.16 NO CONSENT TO ASSUMPTION.

Each Holder of a Security, by acceptance thereof, will be deemed expressly to have withheld any consent to the assumption under Section 365 of the Bankruptcy Code or otherwise, of the Purchase Contract by the Company, its trustee in bankruptcy, receiver, liquidator or a person or entity performing similar functions, in the event that the Company becomes a debtor under the Bankruptcy Code or subject to other similar State or Federal law providing for reorganization or liquidation.

ARTICLE IV

THE DEBT SECURITIES

SECTION 4.1 PAYMENT OF INTEREST; RIGHTS TO INTEREST PRESERVED; INTEREST RATE RESET; NOTICE.

A payment of interest on the Debt Securities or distribution with respect to the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, which is paid on any Payment Date shall, subject to receipt thereof by the Agent from the Collateral Agent as provided by the terms of the Pledge Agreement, be paid to the Person in whose name the Corporate Unit Certificate (or one or more Predecessor Corporate Unit Certificates) of which such Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, are a part is registered at the close of business on the Record Date for such Payment Date.

Each Corporate Unit Certificate evidencing Debt Securities delivered under this Agreement upon registration of transfer of or in exchange for or in lieu of any other Corporate Unit Certificate shall carry the rights to payment

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of interest accrued and unpaid, and to accrue interest, which are carried by the Debt Securities underlying such other Corporate Unit Certificate.

In the case of any Corporate Unit with respect to which Cash Settlement of the underlying Purchase Contract is effected on the Business Day immediately preceding the Purchase Contract Settlement Date pursuant to prior notice, or with respect to which Early Settlement of the underlying Purchase Contract is effected on an Early Settlement Date, or with respect to which a Collateral Substitution is effected, in each case on a date that is after any Record Date and on or prior to the next succeeding Payment Date, interest on the Debt Securities or distributions with respect to the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, underlying such Corporate Unit otherwise payable on such Payment Date shall be payable on such Payment Date notwithstanding such Cash Settlement or Early Settlement or Collateral Substitution, and such interest or distributions shall, subject to receipt thereof by the Agent, be payable to the Person in whose name the Corporate Unit Certificate (or one or more Predecessor Corporate Unit Certificates) was registered at the close of business on the Record Date. Except as otherwise expressly provided in the immediately preceding sentence, in the case of any Corporate Unit with respect to which Cash Settlement or Early Settlement of the underlying Purchase Contract is effected on the Business Day immediately preceding the applicable Purchase Contract Settlement Date or an Early Settlement Date, as the case may be, or with respect to which a Collateral Substitution has been effected, payment of interest on the related Debt Securities or distributions with respect to the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, that would otherwise be payable after the Purchase Contract Settlement Date or Early Settlement Date shall not be payable hereunder to the Holder of such Corporate Unit; provided, however, that to the extent that such Holder continues to hold the separated Debt Security that formerly comprised a part of such Holder's Corporate Unit, such Holder shall be entitled to receive the payment of interest on such separated Debt Security.

The Reset Rate on the Debt Securities to be in effect on and after the Reset Date will be determined on the third Business Day immediately preceding the Reset Date (such Reset Rate to be effective from and after the Reset Date). If the Initial Remarketing results in a Failed Remarketing, the Coupon Rate on the Debt Securities will not be reset to the Reset Rate but will continue at the initial Coupon Rate. If the Secondary Remarketing results in a Failed Remarketing, the Reset Rate will be the rate determined by the Reset Agent as the rate the Debt Securities should bear in order for each Senior Note to have an approximate market value of [_____%] of the principal amount of the Debt Securities. The Company may limit the reset rate to [___] basis points over the yield on the Applicable Benchmark Treasury. In addition, the Reset Rate will in no event exceed the maximum rate permitted by applicable law. On each Reset Announcement Date, the Reset Spread and the Applicable Benchmark Treasury to be used to determine the Reset Rate will be announced by the Company. In addition, on any Reset Announcement Date relating to an Initial Reset Date occurring prior to _________________, the percentage undivided beneficial ownership interest determined by the Reset Agent for purposes of clause (1)(iii) of the definition of "Applicable Ownership Interest" will be announced by the Company. On the Business Day immediately following the Reset Announcement Date, the Company will cause a notice of the Reset Spread, Applicable Benchmark Treasury and, if applicable, percentage undivided beneficial ownership interest in the to be published in an Authorized Newspaper.

Not later than 7 calendar days nor more than 15 calendar days prior to each Reset Announcement Date and the Purchase Contract Settlement Date, if the Purchase Contract Settlement Date is not also a Reset Date, the Company will request that the Depositary (or any successor Clearing Agency or its nominee) notify by first-class mail, postage prepaid, the Beneficial Owners or Clearing Agency Participants holding Corporate Units or Treasury Units, of each Reset Announcement Date and any procedures to be followed by such Holders of Securities, who intend to settle their obligation under the Purchase Contract with separate cash on the Purchase Contract Settlement Date.

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SECTION 4.2 NOTICE AND VOTING.

Under and subject to the terms of the Pledge Agreement, the Agent will be entitled to exercise the voting and any other consensual rights pertaining to the Pledged Debt Securities but only to the extent instructed by the Holders as described below. Upon receipt of notice of any meeting at which holders of Debt Securities are entitled to vote or upon any solicitation of consents, waivers or proxies of holders of Debt Securities, the Agent shall, as soon as practicable thereafter, mail to the Holders of Corporate Units a notice (a) containing such information as is contained in the notice or solicitation, (b) stating that each Corporate Unit Holder on the record date set by the Agent therefor (which, to the extent possible, shall be the same date as the record date for determining the holders of Debt Securities entitled to vote) shall be entitled to instruct the Agent as to the exercise of the voting rights pertaining to the Debt Securities constituting a part of such Holder's Corporate Units and (c) stating the manner in which such instructions may be given. Upon the written request of the Holders of Corporate Units on such record date, the Agent shall endeavor insofar as practicable to vote or cause to be voted, in accordance with the instructions set forth in such requests, the maximum number of Debt Securities as to which any particular voting instructions are received. In the absence of specific instructions from the Holder of a Corporate Unit, the Agent shall abstain from voting the Debt Security constituting a part of such Holder's Corporate Unit. The Company hereby agrees, if applicable, to solicit Holders of Corporate Units to timely instruct the Agent in order to enable the Agent to vote such Debt Securities.

SECTION 4.3 SUBSTITUTION OF A TREASURY PORTFOLIO FOR DEBT SECURITIES.

(a) Upon the occurrence of a Tax Event Redemption prior to the Purchase Contract Settlement Date, the Redemption Price payable on the Tax Event Redemption Date with respect to the Applicable Principal Amount of Debt Securities shall be delivered to the Collateral Agent in exchange for the Pledged Debt Securities. Pursuant to the terms of the Pledge Agreement, the Collateral Agent will apply an amount equal to the Redemption Amount of such Redemption Price to purchase on behalf of the Holders of Corporate Units the Tax Event Treasury Portfolio and promptly remit the remaining portion of such Redemption Price to the Agent for payment to the Holders of such Corporate Units. The Tax Event Treasury Portfolio will be substituted for the outstanding Pledged Debt Securities, and will be held by the Collateral Agent in accordance with the terms of the Pledge Agreement to secure the obligation of each Holder of a Corporate Unit to purchase the Common Stock of the Company on the Purchase Contract Settlement Date under the Purchase Contract constituting a part of such Corporate Unit. Following the occurrence of a Tax Event Redemption prior to the Purchase Contract Settlement Date, the Holders of Corporate Units and the Collateral Agent shall have such security interests, rights and obligations with respect to the Tax Event Treasury Portfolio as the Holder of Corporate Units and the Collateral Agent had in respect of the Debt Securities subject to the Pledge thereof as provided in Articles II, III, IV, V and VI of the Pledge Agreement, and any reference herein to the Debt Securities shall be deemed to be reference to such Tax Event Treasury Portfolio. The Company may cause to be made in any Corporate Unit Certificates thereafter to be issued such change in phraseology and form (but not in substance) as may be appropriate to reflect the substitution of the Tax Event Treasury Portfolio for Debt Securities as collateral.

(b) Upon the successful remarketing of the Pledged Debt Securities on the Initial Remarketing Date, the proceeds of such remarketing (after deducting any Remarketing Fee) shall be delivered to the Collateral Agent in exchange for the Pledged Debt Securities. Pursuant to the terms of the Pledge Agreement, the Collateral Agent will apply an amount equal to the Remarketing Treasury Portfolio Purchase Price to purchase on behalf of the Holders of Corporate Units the Remarketing Treasury Portfolio and promptly remit the remaining portion of such proceeds to the Agent for payment to the Holders of such Corporate Units. The Remarketing Treasury Portfolio will be substituted for the outstanding Pledged Debt Securities, and will be held by the Collateral Agent in accordance with the terms of the Pledge Agreement to secure the obligation of each Holder of a Corporate Unit to purchase the Common Stock of the Company on the Purchase

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Contract Settlement Date under the Purchase Contract constituting a part of such Corporate Unit. Following the successful remarketing of the Pledged Debt Securities on the Initial Remarketing Date, the Holders of Corporate Units and the Collateral Agent shall have such security interests, rights and obligations with respect to the Remarketing Treasury Portfolio as the Holder of Corporate Units and the Collateral Agent had in respect of the Debt Securities subject to the Pledge thereof as provided in Articles II, III, IV, V and VI of the Pledge Agreement, and any reference herein to the Debt Securities shall be deemed to be reference to such Remarketing Treasury Portfolio. The Company may cause to be made in any Corporate Unit Certificates thereafter to be issued such change in phraseology and form (but not in substance) as may be appropriate to reflect the substitution of the Remarketing Treasury Portfolio for Debt Securities as collateral.

SECTION 4.4 CONSENT TO TREATMENT FOR TAX PURPOSES.

Each Holder of a Corporate Unit or a Treasury Unit, by its acceptance thereof, covenants and agrees to treat itself as the owner, for United States federal, state and local income and franchise tax purposes, of (i) the related Debt Securities or the appropriate Applicable Ownership Interest in the Treasury Portfolio, in the case of the Corporate Units, or (ii) the Treasury Securities, in the case of the Treasury Units. Each Holder of a Corporate Unit, by its acceptance thereof, further covenants and agrees to treat the Debt Securities as indebtedness of the Company for United States federal, state and local income and franchise tax purposes.

ARTICLE V

THE PURCHASE CONTRACTS

SECTION 5.1 PURCHASE OF SHARES OF COMMON STOCK.

Each Purchase Contract shall, unless a Termination Event or an Early Settlement in accordance with Section 5.9 hereof has occurred, obligate the Holder of the related Security to purchase, and the Company to sell, on the Purchase Contract Settlement Date, for $__ in cash (the "Purchase Price"), a number of newly issued shares of Common Stock equal to the applicable Settlement Rate. The "Settlement Rate" is equal to (a) if the Applicable Market Value (as defined below) is equal to or greater than $_______ (the "Threshold Appreciation Price"), ______ shares of Common Stock per Purchase Contract, (b) if the Applicable Market Value is less than the Threshold Appreciation Price, but is greater than $_____, the number of shares of Common Stock equal to $__ divided by the Applicable Market Value and (c) if the Applicable Market Value is less than or equal to $_____, ______ shares of Common Stock per Purchase Contract, in each case subject to adjustment as provided in Section 5.6 (and in each case rounded upward or downward to the nearest [1/10,000]th of a share). As provided in Section 5.10, no fractional shares of Common Stock will be issued upon settlement of Purchase Contracts.

The "Applicable Market Value" means the average of the Closing Price per share of Common Stock on each of the __ consecutive Trading Days ending on the third Trading Day immediately preceding the Purchase Contract Settlement Date. The "Closing Price" of the Common Stock on any date of determination means the closing sale price (or, if no closing price is reported, the last reported sale price) of the Common Stock on the New York Stock Exchange (the "NYSE") on such date or, if the Common Stock is not listed for trading on the NYSE on any such date, as reported in the composite transactions for the principal United States national or regional securities exchange on which the Common Stock is so listed. If the Common Stock is not so listed on a United States national or regional securities exchange, the Closing Price means the last sale price of the Common Stock as reported by the NASDAQ Stock Market, or if the Common Stock is not so reported, the last quoted bid price for the Common Stock in the over-the-counter market as reported by the National Quotation Bureau or similar

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organization. If such bid price is not available, the Closing Price means market value of the Common Stock on such date as determined by a nationally recognized independent investment banking firm retained by the Company for this purpose. A "Trading Day" means a day on which the Common Stock (A) is not suspended from trading on any national or regional securities exchange or association or over-the-counter market at the close of business and (B) has traded at least once on the national or regional securities exchange or association or over-the-counter market that is the primary market for the trading of the Common Stock.

Each Holder of a Corporate Unit or a Treasury Unit, by its acceptance thereof, irrevocably authorizes the Agent to enter into and perform the related Purchase Contract on its behalf as its attorney-in-fact (including the execution of Certificates on behalf of such Holder), agrees to be bound by the terms and provisions thereof, covenants and agrees to perform its obligations under such Purchase Contracts, and consents to the provisions hereof, irrevocably authorizes the Agent to enter into and perform the Pledge Agreement on its behalf as its attorney-in-fact, and consents to and agrees to be bound by the Pledge of the Debt Securities, the Treasury Portfolios or the Treasury Securities, as the case may be, pursuant to the Pledge Agreement. Each Holder of a Corporate Unit or a Treasury Unit, by its acceptance thereof, further covenants and agrees, that, to the extent and in the manner provided in Section 5.4 and the Pledge Agreement, but subject to the terms thereof, payments in respect of the principal of and interest on Debt Securities or the Proceeds of the Treasury Securities or the Applicable Ownership Interest in any Treasury Portfolio on the Purchase Contract Settlement Date shall be paid by the Collateral Agent to the Company in satisfaction of such Holder's obligations under such Purchase Contract and such Holder shall acquire no right, title or interest in such payments.

Upon registration of transfer of a Certificate, the transferee shall be bound (without the necessity of any other action on the part of such transferee, except as may be required by the Agent pursuant hereto), under the terms of this Agreement, the Purchase Contracts underlying such Certificate and the Pledge Agreement; and the transferor shall be released from the obligations under this Agreement, the Purchase Contracts underlying the Certificates so transferred and the Pledge Agreement. The Company covenants and agrees, and each Holder of a Certificate, by its acceptance thereof, likewise covenants and agrees, to be bound by the provisions of this paragraph.

SECTION 5.2 CONTRACT ADJUSTMENT PAYMENTS.

Subject to Section 5.3 herein, the Company shall pay, on each Payment Date, except the Initial Reset Date, if the Initial Reset Date is not also a regular quarterly Payment Date, the Contract Adjustment Payments payable in respect of each Purchase Contract to the Person in whose name a Certificate (or one or more Predecessor Certificates) is registered on the Register at the close of business on the Record Date next preceding such Payment Date. The Contract Adjustment Payments will be payable at the Corporate Trust Office or, at the option of the Company, by check mailed to the address of the Person entitled thereto at such Person's address as it appears on the Corporate Unit Register or Treasury Unit Register or by wire transfer to an account appropriately designated in writing by the Person entitled to payment.

Upon the occurrence of a Termination Event, the Company's obligation to pay Contract Adjustment Payments (including any accrued or Deferred Contract Adjustment Payments) shall cease.

Each Certificate delivered under this Agreement upon registration of transfer of or in exchange for or in lieu of any other Certificate (including as a result of a Collateral Substitution or the re-establishment of a Corporate Unit) shall carry the rights to Contract Adjustment Payments accrued and unpaid, and to accrue Contract Adjustment Payments, which were carried by the Purchase Contracts which were represented by such other Certificates.

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Subject to Section 5.9, in the case of any Security with respect to which Early Settlement of the underlying Purchase Contract is effected on an Early Settlement Date that is after any Record Date and on or prior to the next succeeding Payment Date, Contract Adjustment Payments, if any, otherwise payable on such Payment Date shall be payable on such Payment Date notwithstanding such Early Settlement, and such Contract Adjustment Payments shall, subject to receipt thereof by the Agent, be payable to the Person in whose name the Certificate evidencing such Security (or one or more Predecessor Certificates) was registered at the close of business on such Record Date. Except as otherwise expressly provided in the immediately preceding sentence, in the case of any Security with respect to which Early Settlement of the underlying Purchase Contract is effected on an Early Settlement Date, Contract Adjustment Payments that would otherwise be payable after the Early Settlement Date with respect to such Purchase Contract shall not be payable.

The Company's obligations with respect to Contract Adjustment Payments (including any accrued or Deferred Contract Adjustment Payments), will be subordinated and junior in right of payment to the Company's obligations under any Senior Indebtedness.

SECTION 5.3 DEFERRAL OF PAYMENT DATES FOR CONTRACT ADJUSTMENT PAYMENTS.

The Company shall have the right, at any time prior to the Purchase Contract Settlement Date, to defer the payment of any or all of the Contract Adjustment Payments otherwise payable on any Payment Date, but only if the Company shall give the Holders and the Agent written notice of its election to defer such payment (specifying the amount to be deferred) at least ten Business Days prior to the earlier of (i) the next succeeding Payment Date or (ii) the date the Company is required to give notice of the Record Date or Payment Date with respect to payment of such Contract Adjustment Payments to the NYSE or other applicable self-regulatory organization or to Holders of the Securities, but in any event not less than one Business Day prior to such Record Date. In connection with any Contract Adjustment Payments so deferred, additional Contract Adjustment Payments on the amounts so deferred will accrue at the rate of _____% per annum (computed on the basis of a 360 day year of twelve 30 day months), compounding on each succeeding Payment Date, until paid in full (such deferred installments of Contract Adjustment Payments, if any, together with the accrued additional Contract Adjustment Payments accrued thereon, being referred to herein as the "Deferred Contract Adjustment Payments"). Deferred Contract Adjustment Payments, if any, shall be due on the next succeeding Payment Date except to the extent that payment is deferred pursuant to this Section 5.3. No Contract Adjustment Payments may be deferred to a date that is after the Purchase Contract Settlement Date. If the Purchase Contracts are terminated upon the occurrence of a Termination Event, the Holder's right to receive Contract Adjustment Payments and Deferred Contract Adjustment Payments will terminate.

In the event that the Company elects to defer the payment of Contract Adjustment Payments on the Purchase Contracts until the Purchase Contract Settlement Date, each Holder will receive on the Purchase Contract Settlement Date, in lieu of a cash payment, a number of shares of Common Stock (in addition to a number of shares of Common Stock equal to the Settlement Rate) equal to (x) the aggregate amount of Deferred Contract Adjustment Payments payable to such Holder divided by (y) the Applicable Market Value.

No fractional shares of Common Stock will be issued by the Company with respect to the payment of Deferred Contract Adjustment Payments on the Purchase Contract Settlement Date. In lieu of fractional shares otherwise issuable with respect to such payment of Deferred Contract Adjustment Payments, the Holder will be entitled to receive an amount in cash as provided in Section 5.10.

In the event the Company exercises its option to defer the payment of Contract Adjustment Payments, then, until the Deferred Contract Adjustment Payments have been paid, the Company shall not declare or pay dividends on, make

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distributions with respect to, or redeem, purchase or acquire, or make a liquidation payment with respect to, any of its capital stock or make guarantee payments with respect to the foregoing (other than (i) redemptions, purchases or acquisitions of capital stock of the Company in connection with the satisfaction by the Company in connection with any employment contract, benefit plan or other similar arrangement with or for the benefit of employees, officers, directors or agents or a stock purchase or dividend reinvestment plan, or the satisfaction by the Company of its obligations pursuant to any contract or security outstanding on the date of such event requiring the Company to redeem, purchase or acquire its capital stock, (ii) as a result of a reclassification of the Company's capital stock or the exchange or conversion of all or a portion of one class or series of the Company's capital stock for another class or series of the Company's capital stock, (iii) the purchase of fractional interests in shares of the Company's capital stock pursuant to the conversion or exchange provisions of the Company's capital stock or the security being converted or exchanged, (iv) dividends or distributions in capital stock of the Company (or rights to acquire capital stock), or repurchases, redemptions or acquisitions of capital stock in connection with the issuance or exchange of capital stock (or securities convertible into or exchangeable for shares of the Company's capital stock) or
(v) redemptions, exchanges or repurchases of any rights outstanding under a shareholder rights plan or payment thereunder of a dividend or distribution of or with respect to rights in the future.

SECTION 5.4 PAYMENT OF PURCHASE PRICE.

(a) (i) Unless a Treasury Portfolio has replaced the Debt Securities as a component of the Corporate Units or a Holder settles the underlying Purchase Contract through the early delivery of cash to the Agent in the manner described in Section 5.9, each Holder of a Corporate Unit must notify the Agent of its intention to pay in cash ("Cash Settlement") the Purchase Price for the shares of Common Stock to be purchased pursuant to the Purchase Contract on a Purchase Contract Settlement Date by presenting and surrendering to the Agent the Corporate Unit Certificate with a notice in substantially the form of Exhibit C hereto completed and executed. Such presentation, surrender and notice shall be made on or prior to 5:00 p.m., New York City time, on the fifth Business Day immediately preceding the Purchase Contract Settlement Date. The Agent shall promptly notify the Collateral Agent of the receipt of such a notice from a Holder intending to make a Cash Settlement.

(ii) A Holder of a Corporate Unit who has so notified the Agent of its intention to make a Cash Settlement is required to pay the Purchase Price to the Collateral Agent prior to 11:00 a.m., New York City time, on the Business Day immediately preceding the Purchase Contract Settlement Date in lawful money of the United States by certified or cashiers' check or wire transfer, in each case in immediately available funds payable to or upon the order of the Company. Any cash received by the Collateral Agent will be invested promptly by the Collateral Agent in Permitted Investments and paid to the Company on the Purchase Contract Settlement Date in settlement of the Purchase Contract in accordance with the terms of this Agreement and the Pledge Agreement. Any funds received by the Collateral Agent in respect of the investment earnings from the investment in such Permitted Investments, will be distributed to the Agent when received for payment to the Holder.

(iii) If a Holder of a Corporate Unit fails to notify the Agent of its intention to make a Cash Settlement in accordance with paragraph (a)(i) above, such failure shall constitute a default under the Purchase Contract and the Holder shall be deemed to have consented to the disposition of the Pledged Debt Securities pursuant to the remarketing as described in paragraph (b) below. If a Holder of a Corporate Unit does notify the Agent as provided in paragraph
(a)(i) above of its intention to pay the Purchase Price in cash, but fails to make such payment as required by paragraph (a)(ii) above, such failure shall also constitute a default; however, the Debt Securities of such a Holder will not be remarketed but instead the Collateral Agent, for the benefit of the Company, will exercise its rights as a secured party with respect to such Debt Securities, including those rights specified in paragraph (c) below.

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(b) In order to dispose of the Debt Securities of Corporate Unit Holders who have not notified the Agent of their intention to effect a Cash Settlement with respect to the Purchase Contract Settlement Date as provided in paragraph (a)(i) above, the Company shall engage one or more nationally recognized investment banking firms (the "Remarketing Agents") pursuant to a Remarketing Agreement to sell such Debt Securities. In order to facilitate the remarketing, the Agent shall notify the Remarketing Agents, by 10:00 a.m., New York City time, on the fourth Business Day immediately preceding the Purchase Contract Settlement Date, of the aggregate number of Debt Securities to be remarketed. Concurrently, the Collateral Agent, pursuant to the terms of the Pledge Agreement, will present for remarketing such Debt Securities to the Remarketing Agents. Upon receipt of such notice from the Agent and such Debt Securities from the Collateral Agent, the Remarketing Agents will, on the third Business Day immediately preceding the Purchase Contract Settlement Date, use their reasonable efforts to remarket such Debt Securities on such date at a price of approximately [100.5]% (but not less than [100]%) of the aggregate principal amount of such Debt Securities, plus accrued and unpaid interest (including deferred interest), if any, thereon. After deducting any Remarketing Fee, the Remarketing Agents will remit the remaining portion of the proceeds from such remarketing to the Collateral Agent. Such portion of the proceeds, equal to the aggregate principal amount of such Debt Securities, will automatically be applied by the Collateral Agent, in accordance with the Pledge Agreement to satisfy in full such Corporate Unit Holders' obligations to pay the Purchase Price for the Common Stock under the related Purchase Contracts on the Purchase Contract Settlement Date. Any proceeds in excess of those required to pay the Purchase Price and the Remarketing Fee will be remitted to the Agent for payment to the Holders of the related Corporate Units. Corporate Unit Holders whose Debt Securities are so remarketed will not otherwise be responsible for the payment of any Remarketing Fee in connection therewith. If such a remarketing results in a Failed Remarketing in accordance with the terms of the Pledge Agreement, the Collateral Agent, for the benefit of the Company, will exercise its rights as a secured party with respect to such Debt Securities, including those actions specified in paragraph (c) below; provided, that if upon a Failed Remarketing the Collateral Agent exercises such rights for the benefit of the Company with respect to such Debt Securities, any accrued and unpaid interest on such Debt Securities will become payable by the Company to the Agent for payment to the Holder of the Corporate Units to which such Debt Securities relate. Such payment will be made by the Company on or prior to 11 a.m., New York City time, on the Purchase Contract Settlement Date in lawful money of the United States by certified or cashiers' check or wire transfer, in each case, in immediately available funds payable to or upon the order of the Agent. The Company will cause a notice of such Failed Remarketing to be published on the Business Day immediately preceding the Purchase Contract Settlement Date in an Authorized Newspaper.

(c) With respect to any Debt Securities beneficially owned by Holders who have elected Cash Settlement but failed to deliver cash as required in
(a)(ii) above, or with respect to Debt Securities which are subject to a Failed Remarketing, the Collateral Agent for the benefit of the Company reserves all of its rights as a secured party with respect thereto and, subject to applicable law and paragraph (h) below, may, among other things, (i) retain such Debt Securities in full satisfaction of the Holders' obligations under the Purchase Contracts or (ii) sell such Debt Securities in one or more public or private sales and apply the proceeds of such sale in full satisfaction of the Holders' obligations under the Purchase Contracts.

(d) (i) Unless a Holder of a Treasury Unit or Corporate Unit (if a Treasury Portfolio has replaced the Debt Securities as a component of the Corporate Units) settles the underlying Purchase Contract through the early delivery of cash to the Purchase Contract Agent in the manner described in
Section 5.9, each Holder of a Treasury Unit or Corporate Unit (if a Treasury Portfolio has replaced the Debt Securities as a component of the Corporate Units) must notify the Agent of its intention to pay in cash the Purchase Price for the shares of Common Stock to be purchased pursuant to the Purchase Contract on the Purchase Contract Settlement Date by presenting and surrendering to the

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Agent the Treasury Unit Certificate or Corporate Unit Certificate, as the case may be, with a notice in substantially the form of Exhibit C hereto completed and executed. Such presentation, surrender and notice must be made on or prior to 5:00 p.m., New York City time, on the second Business Day immediately preceding the Purchase Contract Settlement Date. The Agent shall promptly notify the Collateral Agent of the receipt of such notice from a Holder intending to make a Cash Settlement.

(ii) A Holder of a Treasury Unit or Corporate Unit (if a Treasury Portfolio has replaced the Debt Securities as a component of the Corporate Units), who has so notified the Agent of its intention to make a Cash Settlement in accordance with paragraph (d)(i) above is required to pay the Purchase Price to the Collateral Agent prior to 11:00 a.m., New York City time, on the Business Day immediately preceding the Purchase Contract Settlement Date in lawful money of the United States by certified or cashiers' check or wire transfer, in each case, in immediately available funds payable to or upon the order of the Company. Any cash received by the Collateral Agent will be invested promptly by the Collateral Agent in Permitted Investments and paid to the Company on the Purchase Contract Settlement Date in settlement of the Purchase Contract in accordance with the terms of this Agreement and the Pledge Agreement. Any funds received by the Collateral Agent in respect of the investment earnings from the investment in such Permitted Investments will be distributed to the Agent when received for payment to the Holder.

(iii) If a Holder of a Treasury Unit or Corporate Unit (if a Treasury Portfolio has replaced the Debt Securities as a component of the Corporate Units), fails to notify the Agent of its intention to make a Cash Settlement in accordance with paragraph (d)(i) above, or if such Holder does notify the Agent as provided in paragraph (d)(i) above of its intention to pay the Purchase Price in cash, but fails to make such payment as required by paragraph (d)(ii) above, then such failure shall constitute a default under the Purchase Contract and upon the maturity of the Pledged Treasury Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, held by the Collateral Agent on the Business Day immediately prior to the Purchase Contract Settlement Date, the principal amount of the Treasury Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, received by the Collateral Agent will be invested promptly in overnight Permitted Investments. On the Purchase Contract Settlement Date an amount equal to the Purchase Price will be remitted to the Company as payment thereof without receiving any instructions from the Holder. In the event the sum of the proceeds from the related Pledged Treasury Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, and the investment earnings earned from such investments is in excess of the aggregate Purchase Price of the Purchase Contracts being settled thereby, the Collateral Agent will distribute such excess to the Agent for the benefit of the Holder of the related Treasury Units or Corporate Units when received.

(e) Any distribution to Holders of excess funds and interest described above, shall be payable at the Corporate Trust Office maintained for that purpose or, at the option of the Holder, by check mailed to the address of the Person entitled thereto at such address as it appears on the Register.

(f) The Company shall not be obligated to issue any shares of Common Stock in respect of a Purchase Contract or deliver any certificate therefor to the Holder unless it shall have received payment in full of the Purchase Price for the shares of Common Stock to be purchased thereunder in the manner herein set forth.

(g) Upon Cash Settlement with respect to a Purchase Contract, (i) the Collateral Agent will in accordance with the terms of the Pledge Agreement cause the Pledged Debt Security or the Pledged Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, or the Pledged Treasury Security underlying the relevant Security to be released from the Pledge by the Collateral Agent free and clear of any security interest of the Company and transferred to the Agent for delivery to the Holder thereof or its designee as

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soon as practicable and (ii) subject to the receipt thereof from the Collateral Agent, the Agent shall, by book-entry transfer, or other appropriate procedures, in accordance with instructions provided by the Holder thereof, transfer such Debt Security or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, or such Treasury Security (or, if no such instructions are given to the Agent by the Holder, the Agent shall hold such Debt Security or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, or such Treasury Security, and any distribution thereon, in the name of the Agent or its nominee in trust for the benefit of such Holder).

(h) The obligations of the Holders to pay the Purchase Price on the Purchase Contract Settlement Date are non-recourse obligations and are payable solely out of any Cash Settlement or the proceeds of any Collateral pledged to secure the obligations of the Holders with respect to such Purchase Price, and in no event will Holders be liable for any deficiency between the proceeds of Collateral disposition and the Purchase Price.

SECTION 5.5 ISSUANCE OF SHARES OF COMMON STOCK.

Unless a Termination Event shall have occurred, and except with respect to Purchase Contracts with respect to which there has been an Early Settlement, on the Purchase Contract Settlement Date, upon the Company's receipt of payment in full of the Purchase Price for the shares of Common Stock purchased by the Holders pursuant to the foregoing provisions of this Article and subject to
Section 5.6(b), the Company shall issue and deposit with the Agent, for the benefit of the Holders of the Outstanding Securities, one or more certificates representing the newly issued shares of Common Stock registered in the name of the Agent (or its nominee) as custodian for the Holders (such certificates for shares of Common Stock, together with any dividends or distributions for which both a record date and payment date for such dividend or distribution has occurred after the Purchase Contract Settlement Date, being hereinafter referred to as the "Purchase Contract Settlement Fund") to which the Holders are entitled hereunder. Subject to the foregoing, upon surrender of a Certificate to the Agent on or after the Purchase Contract Settlement Date, together with settlement instructions thereon duly completed and executed, the Holder of such Certificate shall be entitled to receive in exchange therefor a certificate representing that number of whole shares of Common Stock which such Holder is entitled to receive pursuant to the provisions of this Article V (after taking into account all Securities then held by such Holder) together with cash in lieu of fractional shares as provided in Section 5.10 and any dividends or distributions with respect to such shares constituting part of the Purchase Contract Settlement Fund, but without any interest thereon, and any Certificate so surrendered shall forthwith be cancelled. Such shares shall be registered in the name of the Holder or the Holder's designee as specified in the settlement instructions provided by the Holder to the Agent. If any shares of Common Stock issued in respect of a Purchase Contract are to be registered to a Person other than the Person in whose name the Certificate evidencing such Purchase Contract is registered, no such registration shall be made unless the Person requesting such registration has paid any transfer and other taxes required by reason of such registration in a name other than that of the registered Holder of the Certificate evidencing such Purchase Contract or has established to the satisfaction of the Company that such tax either has been paid or is not payable.

SECTION 5.6 ADJUSTMENT OF SETTLEMENT RATE.

(a) Adjustments for Dividends, Distributions, Stock Splits, Etc.

(1) In case the Company shall pay or make a dividend or other distribution on the Common Stock in Common Stock, the Settlement Rate, as in effect at the opening of business on the day following the date fixed for the determination of stockholders entitled to receive such dividend or other distribution shall be increased by dividing such Settlement Rate by a fraction of which the numerator shall be the number of shares of Common Stock outstanding

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at the close of business on the date fixed for such determination and the denominator shall be the sum of such number of shares and the total number of shares constituting such dividend or other distribution, such increase to become effective immediately after the opening of business on the day following the date fixed for such determination. For the purposes of this paragraph (1), the number of shares of Common Stock at any time outstanding shall not include shares held in the treasury of the Company but shall include any shares issuable in respect of any scrip certificates issued in lieu of fractions of shares of Common Stock. The Company will not pay any dividend or make any distribution on shares of Common Stock held in the treasury of the Company.

(2) In case the Company shall issue rights, options or warrants to all holders of its Common Stock that are not available on an equivalent basis to Holders of the Securities upon settlement of the Purchase Contracts underlying such Securities entitling such holders of the Common Stock, for a period expiring within 45 days after the record date for the determination of stockholders entitled to receive such rights, options or warrants, to subscribe for or purchase shares of Common Stock at a price per share less than the Current Market Price per share of the Common Stock on the date fixed for the determination of stockholders entitled to receive such rights, options or warrants (other than pursuant to any dividend reinvestment plan or share purchase plan, including such a plan that provides for purchases of Common Stock by non-shareholders), the Settlement Rate, in effect at the opening of business on the day following the date fixed for such determination shall be increased by dividing such Settlement Rate, by a fraction of which the numerator shall be the number of shares of Common Stock outstanding at the close of business on the date fixed for such determination plus the number of shares of Common Stock which the aggregate of the offering price of the total number of shares of Common Stock so offered for subscription or purchase would purchase at such Current Market Price and the denominator shall be the number of shares of Common Stock outstanding at the close of business on the date fixed for such determination plus the number of shares of Common Stock so offered for subscription or purchase, such increase to become effective immediately after the opening of business on the day following the date fixed for such determination. For the purposes of this paragraph (2), the number of shares of Common Stock at any time outstanding shall not include shares held in the treasury of the Company but shall include any shares issuable in respect of any scrip certificates issued in lieu of fractions of shares of Common Stock. The Company shall not issue any such rights, options or warrants in respect of shares of Common Stock held in the treasury of the Company.

(3) In case outstanding shares of Common Stock shall be subdivided or split into a greater number of shares of Common Stock, the Settlement Rate, in effect at the opening of business on the day following the day upon which such subdivision or split becomes effective shall be proportionately increased, and, conversely, in case outstanding shares of Common Stock shall each be combined into a smaller number of shares of Common Stock, the Settlement Rate, in effect at the opening of business on the day following the day upon which such combination becomes effective shall be proportionately reduced, such increase or reduction, as the case may be, to become effective immediately after the opening of business on the day following the day upon which such subdivision, split or combination becomes effective.

(4) In case the Company shall, by dividend or otherwise, distribute to all holders of its Common Stock evidences of its indebtedness or assets (including securities, but excluding any rights or warrants referred to in paragraph (2) of this Section, any dividend or distribution paid exclusively in cash and any dividend or distribution referred to in paragraph (1) of this Section), the Settlement Rate, in effect at the opening of business on the day following the day on which such dividend or distribution was effected, shall be adjusted so that the same shall equal the rate determined by dividing the Settlement Rate in effect immediately prior to the close of business on the date fixed for the determination of stockholders entitled to receive such distribution by a fraction of which the numerator shall be the Current Market Price per share of the Common Stock on the date fixed for such determination less the then fair market value (as determined by the Board of Directors, whose

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determination shall be conclusive and described in a Board Resolution) of the portion of the assets or evidences of indebtedness so distributed applicable to one share of Common Stock and the denominator shall be such Current Market Price per share of the Common Stock, such adjustment to become effective immediately prior to the opening of business on the day following the date fixed for the determination of stockholders entitled to receive such distribution. In any case in which this paragraph (4) is applicable, paragraph (2) of this Section shall not be applicable.

(5) In case the Company shall, (I) by dividend or otherwise, distribute to all holders of its Common Stock cash (excluding any cash that is distributed in a Reorganization Event to which Section 5.6(b) applies or as part of a distribution referred to in paragraph (4) of this Section) in an aggregate amount that, combined together with (II) the aggregate amount of any other distributions to all holders of its Common Stock made exclusively in cash within the 12 months preceding the date of payment of such distribution and in respect of which no adjustment pursuant to this paragraph (5) or paragraph (6) of this
Section has been made and (III) the aggregate of any cash plus the fair market value (as determined by the Board of Directors, whose determination shall be conclusive and described in a Board Resolution) of consideration payable in respect of any tender or exchange offer (other than consideration payable in respect of any odd-lot tender offer) by the Company or any of its subsidiaries for all or any portion of the Common Stock concluded within the 12 months preceding the date of payment of the distribution described in clause (I) above and in respect of which no adjustment pursuant to this paragraph (5) or paragraph (6) of this Section has been made, exceeds 15% of the product of the Current Market Price per share of the Common Stock on the date for the determination of holders of shares of Common Stock entitled to receive such distribution times the number of shares of Common Stock outstanding on such date, then, and in each such case, immediately after the close of business on such date for determination, the Settlement Rate, shall be increased so that the same shall equal the rate determined by dividing the Settlement Rate in effect immediately prior to the close of business on the date fixed for determination of the stockholders entitled to receive such distribution by a fraction (i) the numerator of which shall be equal to the Current Market Price per share of the Common Stock on the date fixed for such determination less an amount equal to the quotient of (x) the combined amount distributed or payable in the transactions described in clauses (I), (II) and (III) above and (y) the number of shares of Common Stock outstanding on such date for determination and (ii) the denominator of which shall be equal to the Current Market Price per share of the Common Stock on such date for determination.

(6) In case (I) a tender or exchange offer made by the Company or any subsidiary of the Company for all or any portion of the Common Stock shall expire and such tender or exchange offer (as amended upon the expiration thereof) shall require the payment to stockholders (based on the acceptance (up to any maximum specified in the terms of the tender or exchange offer) of Purchased Shares (as defined below)) of an aggregate consideration having a fair market value (as determined by the Board of Directors, whose determination shall be conclusive and described in a Board Resolution) that combined together with
(II) the aggregate of the cash plus the fair market value (as determined by the Board of Directors, whose determination shall be conclusive and described in a Board Resolution), as of the expiration of such tender or exchange offer, of consideration payable in respect of any other tender or exchange offer (other than consideration payable in respect of any odd-lot tender offer), by the Company or any subsidiary of the Company for all or any portion of the Common Stock expiring within the 12 months preceding the expiration of such tender or exchange offer and in respect of which no adjustment pursuant to paragraph (5) of this Section or this paragraph (6) has been made and (III) the aggregate amount of any distributions to all holders of the Company's Common Stock made exclusively in cash (other than regular quarterly cash dividends) within the 12 months preceding the expiration of such tender or exchange offer and in respect of which no adjustment pursuant to paragraph (5) of this Section or this paragraph (6) has been made, exceeds 15% of the product of the Current Market Price per share of the Common Stock as of the last time (the "Expiration Time") tenders could have been made pursuant to such tender or exchange offer (as it may be amended) times the number of shares of Common Stock outstanding

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(including any tendered shares) on the Expiration Time, then, and in each such case, immediately prior to the opening of business on the day after the date of the Expiration Time, the Settlement Rate, shall be adjusted so that the same shall equal the rate determined by dividing the Settlement Rate immediately prior to the close of business on the date of the Expiration Time by a fraction
(i) the numerator of which shall be equal to (A) the product of (I) the Current Market Price per share of the Common Stock on the date of the Expiration Time and (II) the number of shares of Common Stock outstanding (including any tendered shares) on the Expiration Time less (B) the amount of cash plus the fair market value (determined as aforesaid) of the aggregate consideration payable to stockholders based on the transactions described in clauses (I), (II) and (III) above (assuming in the case of clause (I) the acceptance, up to any maximum specified in the terms of the tender or exchange offer, of Purchased Shares), and (ii) the denominator of which shall be equal to the product of (A) the Current Market Price per share of the Common Stock as of the Expiration Time and (B) the number of shares of Common Stock outstanding (including any tendered shares) as of the Expiration Time less the number of all shares validly tendered and not withdrawn as of the Expiration Time (the shares deemed so accepted, up to any such maximum, being referred to as the "Purchased Shares").

(7) The reclassification of Common Stock into securities including securities other than Common Stock (other than any reclassification upon a Reorganization Event to which Section 5.6(b) applies) shall be deemed to involve
(a) a distribution of such securities other than Common Stock to all holders of Common Stock (and the effective date of such reclassification shall be deemed to be "the date fixed for the determination of stockholders entitled to receive such distribution" and the "date fixed for such determination" within the meaning of paragraph (4) of this Section), and (b) a subdivision, split or combination, as the case may be, of the number of shares of Common Stock outstanding immediately prior to such reclassification into the number of shares of Common Stock outstanding immediately thereafter (and the effective date of such reclassification shall be deemed to be "the day upon which such subdivision or split becomes effective" or "the day upon which such combination becomes effective", as the case may be, and "the day upon which such subdivision, split or combination becomes effective" within the meaning of paragraph (3) of this Section).

(8) The "Current Market Price" per share of Common Stock on any day means the average of the daily Closing Prices for the five consecutive Trading Days selected by the Company commencing not more than 30 Trading Days before, and ending not later than, the earlier of the day in question and the day before the "ex date" with respect to the issuance or distribution requiring such computation. For purposes of this paragraph, the term "ex date," when used with respect to any issuance or distribution, shall mean the first date on which the Common Stock trades regular way the applicable exchange or in the applicable market without the right to receive such issuance or distribution.

(9) All adjustments to the Settlement Rate, shall be calculated to the nearest [1/10,000]th of a share of Common Stock (or if there is not a nearest [1/10,000]th of a share to the next lower [1/10,000]th of a share). No adjustment in the Settlement Rate shall be required unless such adjustment would require an increase or decrease of at least one percent therein; provided, however, that any adjustments which by reason of this subparagraph are not required to be made shall be carried forward and taken into account in any subsequent adjustment. If an adjustment is made to the Settlement Rate pursuant to paragraph (1), (2), (3), (4), (5), (6), (7) or (10) of this Section 5.6(a), an adjustment shall also be made to the Applicable Market Value solely to determine which of clauses (a), (b) or (c) of the definition of Settlement Rate in Section 5.1 will apply on the Purchase Contract Settlement Date. Such adjustment shall be made by multiplying the Applicable Market Value by a fraction of which the numerator shall be the Settlement Rate immediately after such adjustment pursuant to paragraph (1), (2), (3), (4), (5), (6), (7) or (10)

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of this Section 5.6(a) and the denominator shall be the Settlement Rate immediately before such adjustment; provided, however, that if such adjustment to the Settlement Rate is required to be made pursuant to the occurrence of any of the events contemplated by paragraph (1), (2), (3), (4), (5), (7) or (10) of this Section 5.6(a) during the period taken into consideration for determining the Applicable Market Value, appropriate and customary adjustments shall be made to the Settlement Rate.

(10) The Company may make such increases in the Settlement Rate, in addition to those required by this Section, as it considers to be advisable in order to avoid or diminish the effect of any income tax to any holders of shares of Common Stock resulting from any dividend or distribution of stock or issuance of rights or warrants to purchase or subscribe for stock or from any event treated as such for income tax purposes or for any other reasons.

(b) Adjustment for Consolidation, Merger or Other Reorganization Event. In the event of (i) any consolidation or merger of the Company with or into another Person (other than a merger or consolidation in which the Company is the continuing corporation and in which the Common Stock outstanding immediately prior to the merger or consolidation is not exchanged for cash, securities or other property of the Company or another corporation), (ii) any sale, transfer, lease or conveyance to another Person of the property of the Company as an entirety or substantially as an entirety, (iii) any statutory exchange of securities of the Company with another Person (other than in connection with a merger or acquisition) or (iv) any liquidation, dissolution or winding up of the Company other than as a result of or after the occurrence of a Termination Event (any such event, a "Reorganization Event"), the Settlement Rate will be adjusted to provide that each Holder of Securities will receive on the Purchase Contract Settlement Date with respect to each Purchase Contract forming a part thereof, the kind and amount of securities, cash and other property receivable upon such Reorganization Event (without any interest thereon, and without any right to dividends or distribution thereon which have a record date that is prior to the Purchase Contract Settlement Date) by a Holder of the number of shares of Common Stock issuable on account of each Purchase Contract if the Purchase Contract Settlement Date had occurred immediately prior to such Reorganization Event assuming such Holder of Common Stock is not a Person with which the Company consolidated or into which the Company merged or which merged into the Company or with which such statutory exchange of securities was effected or to which such sale, transfer, lease or conveyance was made, as the case may be (any such Person, a "Constituent Person"), or an Affiliate of a Constituent Person to the extent such Reorganization Event provides for different treatment of Common Stock held by Affiliates of the Company and non-affiliates and such Holder failed to exercise its rights of election, if any, as to the kind or amount of securities, cash and other property receivable upon such Reorganization Event (provided that if the kind or amount of securities, cash and other property receivable upon such Reorganization Event is not the same for each share of Common Stock held immediately prior to such Reorganization Event by other than a Constituent Person or an Affiliate thereof and in respect of which such rights of election shall not have been exercised ("non-electing share"), then for the purpose of this Section the kind and amount of securities, cash and other property receivable upon such Reorganization Event by each non-electing share shall be deemed to be the kind and amount so receivable per share by a plurality of the non-electing shares). In the event of such a Reorganization Event, the Person formed by such consolidation, merger or exchange or the Person which acquires the assets of the Company or, in the event of a liquidation or dissolution of the Company, the Company or a liquidating trust created in connection therewith, shall execute and deliver to the Agent an agreement supplemental hereto providing that the Holders of each Outstanding Security shall have the rights provided by this Section 5.6. Such supplemental agreement shall provide for adjustments which, for events subsequent to the effective date of such supplemental agreement, shall be as nearly equivalent as may be practicable to the adjustments provided for in this Section. The above provisions of this Section shall similarly apply to successive Reorganization Events.

SECTION 5.7 NOTICE OF ADJUSTMENTS AND CERTAIN OTHER EVENTS.

(a) Whenever the Settlement Rate is adjusted as herein provided, the Company shall:

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(i) forthwith compute the Settlement Rate in accordance with Section 5.6 and prepare and transmit to the Agent a Company Certificate setting forth the Settlement Rate, the method of calculation thereof in reasonable detail, and the facts requiring such adjustment and upon which such adjustment is based; and

(ii) within 10 Business Days following the occurrence of an event that requires an adjustment to the Settlement Rate pursuant to Section 5.6 (or if the Company is not aware of such occurrence, as soon as practicable after becoming so aware), provide a written notice to the Holders of the Securities of the occurrence of such event and a statement in reasonable detail setting forth the method by which the adjustment to the Settlement Rate was determined and setting forth the adjusted Settlement Rate.

(b) The Agent shall not at any time be under any duty or responsibility to any Holder of Securities to determine whether any facts exist which may require any adjustment of the Settlement Rate, or with respect to the nature or extent or calculation of any such adjustment when made, or with respect to the method employed in making the same. The Agent shall not be accountable with respect to the validity or value (or the kind or amount) of any shares of Common Stock, or of any securities or property, which may at the time be issued or delivered with respect to any Purchase Contract, and the Agent makes no representation with respect thereto. The Agent shall not be responsible for any failure of the Company to issue, transfer or deliver any shares of Common Stock pursuant to a Purchase Contract or to comply with any of the duties, responsibilities or covenants of the Company contained in this Article.

SECTION 5.8 TERMINATION EVENT; NOTICE.

The Purchase Contracts and all obligations and rights of the Company and the Holders thereunder, including, without limitation, the rights of the Holders to receive and the obligation of the Company to pay any Contract Adjustment Payments or any Deferred Contract Adjustment Payments, and the rights and obligations of the Holders to purchase Common Stock, will immediately and automatically terminate, without the necessity of any notice or action by any Holder, the Agent or the Company, if, on or prior to the Purchase Contract Settlement Date, a Termination Event shall have occurred. Upon the occurrence of a Termination Event, the Company shall promptly but in no event later than two Business Days thereafter give written notice thereof to the Agent, the Collateral Agent and to the Holders, at their addresses as they appear in the applicable Register. Upon and after the occurrence of a Termination Event, the Securities shall thereafter represent the right to receive the Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, forming a part of such Securities in the case of Corporate Units, or Treasury Securities in the case of Treasury Units, in accordance with the provisions of Section 4.3 of the Pledge Agreement.

SECTION 5.9 EARLY SETTLEMENT.

(a) A holder of Corporate Units may settle the related Purchase Contracts in their entirety at any time on or prior to the fifth Business Day immediately preceding the Purchase Contract Settlement Date in the manner described herein, but only in integral multiples of __ Corporate Units; provided, however, if a Treasury Portfolio has become a component of the Corporate Units, Holders of Corporate Units may settle early only in integral multiples of ______ Corporate Units. A holder of Treasury Units may settle the related Purchase Contracts in their entirety at any time on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date in the manner described herein (in either case, "Early Settlement") but only in integral multiples of __ Treasury Units. The right to Early Settlement is subject to there being in effect, if so required under Federal securities laws, a registration statement covering the shares of Common Stock to be delivered in respect of the Purchase Contracts being settled. Upon Early Settlement, (i) the holder's rights to receive Deferred Contract Adjustment Payments, if any, on the

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Purchase Contracts being settled will be forfeited, (ii) the holder's right to receive additional Contract Adjustment Payments in respect of such Purchase Contracts will terminate and (iii) no adjustment will be made to or for the holder on account of Deferred Contract Adjustment Payments, or any amount accrued in respect of Contract Adjustment Payments. In order to exercise the right to effect any Early Settlement with respect to any Purchase Contracts, the Holder of the Certificate evidencing Securities shall deliver such Certificate to the Agent at the Corporate Trust Office duly endorsed for transfer to the Company or in blank with the form of Election to Settle Early therein duly completed and executed and accompanied by payment payable to the Company in immediately available funds in an amount (the "Early Settlement Amount") equal to the sum of (i) $__ times the number of Purchase Contracts being settled (ii) if such delivery is made with respect to any Purchase Contracts during the period from the close of business on any Record Date next preceding any Payment Date to the opening of business on such Payment Date, an amount equal to the Contract Adjustment Payments payable on such Payment Date with respect to such Purchase Contracts; provided that no payment is required if the Company has elected to defer the Contract Adjustment Payments which would otherwise be payable on the Payment Date. Except as provided in the immediately preceding sentence and subject to the second to last paragraph of Section 5.2, no payment or adjustment shall be made upon Early Settlement of any Purchase Contract on account of any Contract Adjustment Payments accrued on such Purchase Contract or on account of any dividends on the Common Stock issued upon such Early Settlement. In order for any of the foregoing requirements to be considered satisfied or effective with respect to a Purchase Contract underlying any Security on or by a particular Business Day, such requirement must be met at or prior to 5:00 p.m., New York City time, on such Business Day; the first Business Day on which all of the foregoing requirements have been satisfied by 5:00 p.m., New York City time shall be the "Early Settlement Date" with respect to such Security.

(b) Upon Early Settlement of Purchase Contracts by a Holder of the related Securities, the Company shall issue, and the Holder shall be entitled to receive ______ newly issued shares of Common Stock per Corporate Unit or Treasury Unit (the "Early Settlement Rate") (regardless of the market price of the Common Stock on the date of Early Settlement); provided, however, that upon the Early Settlement of the Purchase Contracts, the Holder of such related Securities will forfeit the right to receive any Deferred Contract Adjustment Payments. The Early Settlement Rate shall be adjusted in the same manner and at the same time as the Settlement Rate is adjusted, in accordance with Section
5.6. As promptly as practicable after Early Settlement of Purchase Contracts in accordance with the provisions of this Section 5.9, the Company shall issue and shall deliver to the Agent at the Corporate Trust Office a certificate or certificates for the full number of shares of Common Stock issuable upon such Early Settlement together with payment in lieu of any fraction of a share, as provided in Section 5.10.

(c) No later than the third Business Day after the applicable Early Settlement Date the Company shall cause (i) the shares of Common Stock issuable upon Early Settlement of Purchase Contracts to be issued and delivered, and (ii) the related Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, in the case of Corporate Units, or the related Treasury Securities, in the case of Treasury Units, to be released from the Pledge by the Collateral Agent and transferred, in each case to the Agent for delivery to the Holder thereof or its designee.

(d) Upon Early Settlement of any Purchase Contracts, and subject to receipt of shares of Common Stock from the Company and the Debt Securities, the Applicable Ownership Interest in the appropriate Treasury Portfolio or Treasury Securities, as the case may be, from the Collateral Agent, as applicable, the Agent shall, in accordance with the instructions provided by the Holder thereof on the applicable form of Election to Settle Early in the Certificate evidencing the related Securities, (i) transfer to the Holder the Debt Securities, Treasury Portfolio or Treasury Securities, as the case may be, forming a part of such Securities, and (ii) deliver to the Holder a certificate or certificates for the

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full number of shares of Common Stock issuable upon such Early Settlement together with payment in lieu of any fraction of a share, as provided in Section 5.10.

(e) In the event that Early Settlement is effected with respect to Purchase Contracts underlying less than all the Securities evidenced by a Certificate, upon such Early Settlement the Company shall execute and the Agent shall authenticate, countersign and deliver to the Holder thereof, at the expense of the Company, a Certificate evidencing the Securities as to which Early Settlement was not effected.

SECTION 5.10 NO FRACTIONAL SHARES.

No fractional shares or scrip representing fractional shares of Common Stock shall be issued or delivered upon settlement on the Purchase Contract Settlement Date or upon Early Settlement of any Purchase Contracts. If Certificates evidencing more than one Purchase Contract shall be surrendered for settlement at one time by the same Holder, the number of full shares of Common Stock which shall be delivered upon settlement shall be computed on the basis of the aggregate number of Purchase Contracts evidenced by the Certificates so surrendered. Instead of any fractional share of Common Stock which would otherwise be deliverable upon settlement of any Purchase Contracts on the Purchase Contract Settlement Date or upon Early Settlement, the Company, through the Agent, shall make a cash payment in respect of such fractional interest in an amount equal to the fractional share times (i) the Threshold Appreciation Price, in the case of an Early Settlement or (ii) the Applicable Market Value, in all other circumstances. The Company shall provide the Agent from time to time with sufficient funds to permit the Agent to make all cash payments required by this Section 5.10 in a timely manner.

SECTION 5.11 CHARGES AND TAXES.

The Company will pay all stock transfer and similar taxes attributable to the initial issuance and delivery of the shares of Common Stock pursuant to the Purchase Contracts and in payment of any Deferred Contract Adjustment Payments; provided, however, that the Company shall not be required to pay any such tax or taxes which may be payable in respect of any exchange of or substitution for a Certificate evidencing a Security or any issuance of a share of Common Stock in a name other than that of the registered Holder of a Certificate surrendered in respect of the Securities evidenced thereby, other than in the name of the Agent, as custodian for such Holder, and the Company shall not be required to issue or deliver such share certificates or Certificates unless or until the Person or Persons requesting the transfer or issuance thereof shall have paid to the Company the amount of such tax or shall have established to the satisfaction of the Company that such tax has been paid or that no such tax is due.

ARTICLE VI

REMEDIES

SECTION 6.1 UNCONDITIONAL RIGHT OF HOLDERS TO RECEIVE CONTRACT ADJUSTMENT PAYMENTS AND TO PURCHASE COMMON STOCK.

The Holder of any Corporate Unit or Treasury Unit shall have the right, which is absolute and unconditional (subject to the right of the Company to defer payment thereof pursuant to Section 5.3, the prepayment of Contract Adjustment Payments pursuant to Section 5.9(a) and the forfeiture of any Deferred Contract Adjustment Payments upon Early Settlement pursuant to Section 5.9(b) or upon the occurrence of a Termination Event), to receive payment of each installment of the Contract Adjustment Payments with respect to the Purchase Contract constituting a part of such Security on the respective Payment Date for such Security and to purchase Common Stock pursuant to such Purchase Contract and, in each such case, to institute suit for the enforcement of any

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such payment and right to purchase Common Stock, and such rights shall not be impaired without the consent of such Holder.

SECTION 6.2 RESTORATION OF RIGHTS AND REMEDIES.

If any Holder has instituted any proceeding to enforce any right or remedy under this Agreement and such proceeding has been discontinued or abandoned for any reason, or has been determined adversely to such Holder, then and in every such case, subject to any determination in such proceeding, the Company and such Holder shall be restored severally and respectively to their former positions hereunder and thereafter all rights and remedies of such Holder shall continue as though no such proceeding had been instituted.

SECTION 6.3 RIGHTS AND REMEDIES CUMULATIVE.

Except as otherwise provided with respect to the replacement or payment of mutilated, destroyed, lost or stolen Certificates in the last paragraph of
Section 3.10, no right or remedy herein conferred upon or reserved to the Holders is intended to be exclusive of any other right or remedy, and every right and remedy shall, to the extent permitted by law, be cumulative and in addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or employment of any right or remedy hereunder, or otherwise, shall not prevent the concurrent assertion or employment of any other appropriate right or remedy.

SECTION 6.4 DELAY OR OMISSION NOT WAIVER.

No delay or omission of any Holder to exercise any right or remedy upon a default shall impair any such right or remedy or constitute a waiver of any such right. Every right and remedy given by this Article or by law to the Holders may be exercised from time to time, and as often as may be deemed expedient, by such Holders.

SECTION 6.5 UNDERTAKING FOR COSTS.

All parties to this Agreement agree, and each Holder of Corporate Units or Treasury Units, by its acceptance of such Corporate Units or Treasury Units shall be deemed to have agreed, that any court may in its discretion require, in any suit for the enforcement of any right or remedy under this Agreement, or in any suit against the Agent for any action taken, suffered or omitted by it as Agent, the filing by any party litigant in such suit of an undertaking to pay the costs of such suit, and that such court may in its discretion assess reasonable costs, including reasonable attorneys' fees, against any party litigant in such suit, having due regard to the merits and good faith of the claims or defenses made by such party litigant; provided that the provisions of this Section shall not apply to any suit instituted by the Company, to any suit instituted by the Agent, to any suit instituted by any Holder, or group of Holders, holding in the aggregate more than 10% of the Outstanding Securities, or to any suit instituted by any Holder for the enforcement of payment of interest on any Debt Securities or Contract Adjustment Payments on any Purchase Contract on or after the respective Payment Date therefor in respect of any Security held by such Holder, or for enforcement of the right to purchase shares of Common Stock under the Purchase Contracts constituting part of any Security held by such Holder.

SECTION 6.6 WAIVER OF STAY OR EXTENSION LAWS.

The Company covenants (to the extent that it may lawfully do so) that it will not at any time insist upon, or plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay or extension law wherever enacted, now or at any time hereafter in force, which may affect the covenants or the

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performance of this Agreement; and the Company (to the extent that it may lawfully do so) hereby expressly waives all benefit or advantage of any such law and covenants that it will not hinder, delay or impede the execution of any power herein granted to the Agent or the Holders, but will suffer and permit the execution of every such power as though no such law had been enacted.

ARTICLE VII

THE AGENT

SECTION 7.1 CERTAIN DUTIES AND RESPONSIBILITIES.

(a) Prior to a Default and after the curing or waiving of all such Defaults that may have occurred,

(1) the Agent undertakes to perform, with respect to the Securities, such duties and only such duties as are specifically set forth in this Agreement and no implied covenants or obligations shall be read into this Agreement against the Agent; and

(2) the Agent may, with respect to the Securities, conclusively rely, as to the truth of the statements and the correctness of the opinions expressed therein, in the absence of bad faith on the part of the Agent, upon certificates or opinions furnished to the Agent and conforming to the requirements of this Agreement; but in the case of any certificates or opinions which by any provision hereof are specifically required to be furnished to the Agent, the Agent shall be under a duty to examine the same to determine whether or not they conform to the requirements of this Agreement.

(b) No provision of this Agreement shall be construed to relieve the Agent from liability for its own negligent action, its own negligent failure to act, or its own willful misconduct, except that

(1) this Subsection shall not be construed to limit the effect of Subsection (a) of this Section;

(2) the Agent shall not be liable for any error of judgment made in good faith by a Responsible Officer, unless it shall be proved that the Agent was negligent in ascertaining the pertinent facts; and

(3) no provision of this Agreement shall require the Agent to expend or risk its own funds or otherwise incur any financial liability in the performance of any of its duties hereunder, or in the exercise of any of its rights or powers.

(c) Whether or not therein expressly so provided, every provision of this Agreement relating to the conduct or affecting the liability of or affording protection to the Agent shall be subject to the provisions of this Section.

(d) The Agent is authorized to execute, deliver and perform the Pledge Agreement in its capacity as Agent and to grant the Pledge. The Agent shall be entitled to all of the rights, privileges, immunities and indemnities contained in this Agreement with respect to any duties of the Agent under, or actions taken by the Agent pursuant to, such Pledge Agreement.

(e) In case a Default has occurred (that has not been cured or waived), and is actually known by a Responsible Officer of the Agent, the Agent shall exercise such of the rights and powers vested in it by this Agreement, and use

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the same degree of care and skill in its exercise thereof, as a prudent person would exercise or use under the circumstances in the conduct of his or her own affairs.

(f) At the request of the Company, the Agent is authorized to execute and deliver one or more Remarketing Agreements to, among other things, effectuate Section 5.4.

SECTION 7.2 NOTICE OF DEFAULT.

Within 90 days after the occurrence of any Default hereunder of which a Responsible Officer of the Agent has actual knowledge, the Agent shall transmit by mail to the Company and the Holders of Securities, as their names and addresses appear in the Register, notice of such Default hereunder, unless such Default shall have been cured or waived; provided that, except for a Default in any payment obligation hereunder, the Agent shall be protected in withholding such notice if and so long as a Responsible Officer of the Agent in good faith determines that the withholding of such notice is in the interests of the Holders of the Securities.

SECTION 7.3 CERTAIN RIGHTS OF AGENT.

Subject to the provisions of Section 7.1:

(a) the Agent may conclusively rely and shall be protected in acting or refraining from acting upon any resolution, certificate, statement, instrument, opinion, report, notice, request, direction, consent, order, bond, debenture, note, other evidence of indebtedness or other paper or document believed by it to be genuine and to have been signed or presented by the proper party or parties;

(b) any request or direction of the Company mentioned herein shall be sufficiently evidenced by a Company Certificate, Issuer Order or Issuer Request, and any resolution of the Board of Directors of the Company may be sufficiently evidenced by a Board Resolution;

(c) whenever in the administration of this Agreement the Agent shall deem it desirable that a matter be proved or established prior to taking, suffering or omitting any action hereunder, the Agent (unless other evidence be herein specifically prescribed) may, in the absence of bad faith on its part, rely upon a Company Certificate;

(d) the Agent may consult with counsel of its selection and the advice of such counsel or any Opinion of Counsel shall be full and complete authorization and protection in respect of any action taken, suffered or omitted by it hereunder in good faith and in reliance thereon;

(e) the Agent shall not be bound to make any investigation into the facts or matters stated in any resolution, certificate, statement, instrument, opinion, report, notice, request, direction, consent, order, bond, debenture, note, other evidence of indebtedness or other paper or document, but the Agent, in its discretion, may make reasonable further inquiry or investigation into such facts or matters related to the execution, delivery and performance of the Purchase Contracts as it may see fit, and, if the Agent shall determine to make such further inquiry or investigation, it shall be given a reasonable opportunity to examine the books, records and premises of the Company, personally or by agent or attorney;

(f) the Agent may execute any of the powers hereunder or perform any duties hereunder either directly or by or through agents or attorneys or an Affiliate and the Agent shall not be responsible for any misconduct or negligence on the part of any agent or attorney or an Affiliate appointed with due care by it hereunder; and

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(g) the rights, privileges, protections, immunities and benefits given to the Agent, including, without limitation, its right to be indemnified, are extended to, and shall be enforceable by, the Agent in each of its capacities hereunder.

SECTION 7.4 NOT RESPONSIBLE FOR RECITALS OR ISSUANCE OF SECURITIES.

The recitals contained herein and in the Certificates shall be taken as the statements of the Company, and the Agent assumes no responsibility for their accuracy. The Agent makes no representations as to the validity or sufficiency of either this Agreement or of the Securities, or of the Pledge Agreement or the Pledge. The Agent shall not be accountable for the use or application by the Company of the proceeds in respect of the Purchase Contracts.

SECTION 7.5 MAY HOLD SECURITIES.

Any Registrar or any other agent of the Company, or the Agent and its Affiliates, in their individual or any other capacity, may become the owner or pledgee of Securities and may otherwise deal with the Company, the Collateral Agent or any other Person with the same rights it would have if it were not Registrar or such other agent, or the Agent.

SECTION 7.6 MONEY HELD IN CUSTODY.

Money held by the Agent in custody hereunder need not be segregated from the other funds except to the extent required by law or provided herein. The Agent shall be under no obligation to invest or pay interest on any money received by it hereunder except as otherwise agreed in writing with the Company.

SECTION 7.7 COMPENSATION AND REIMBURSEMENT.

The Company agrees:

(a) to pay to the Agent from time to time such compensation for all services rendered by it hereunder as the parties shall agree from time to time in writing (which compensation shall not be limited by any provisions of law in regards to the compensation of a trustee of an express trust);

(b) except as otherwise expressly provided herein, to reimburse the Agent upon its request for all reasonable expenses, disbursements and advances incurred or made by the Agent in accordance with any provision of this Agreement (including the reasonable compensation and the expenses and disbursements of its agents and counsel), except any such expense, disbursement or advance as may be attributable to its negligence or bad faith; and

(c) to indemnify the Agent and any predecessor Agent for, and to hold it harmless against, any loss, liability or expense incurred without negligence or bad faith on its part, arising out of or in connection with the acceptance or administration or the performance of its duties hereunder, including the costs and expenses of defending itself against any claim or liability in connection with the exercise or performance of any of its powers or duties hereunder.

"Agent" for purposes of this Section 7.7 shall include any predecessor Agent; provided, however, that the negligence or bad faith of any Agent hereunder shall not affect the rights of any other Agent hereunder.

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When the Agent incurs expenses or renders services in an action or proceeding commenced pursuant to Section 4.3 of the Pledge Agreement upon the occurrence of a Termination Event, the expenses (including the reasonable charges and expenses of its counsel) and the compensation for the services are intended to constitute expenses of administration under any applicable Federal or State bankruptcy, insolvency or other similar law.

The provisions of this Section 7.7 shall survive the termination of this Agreement and the Pledge Agreement.

SECTION 7.8 CORPORATE AGENT REQUIRED; ELIGIBILITY.

There shall at all times be an Agent hereunder which shall be (i) not an Affiliate of the Company and (ii) a corporation organized and doing business under the laws of the United States of America, any State thereof or the District of Columbia, authorized under such laws to exercise corporate trust powers, having (or being a member of a bank holding company having) a combined capital and surplus of at least $50,000,000 and subject to supervision or examination by Federal or State authority. If such corporation publishes reports of condition at least annually, pursuant to law or to the requirements of said supervising or examining authority, then for the purposes of this Section, the combined capital and surplus of such corporation shall be deemed to be its combined capital and surplus as set forth in its most recent report of condition so published. If at any time the Agent shall cease to be eligible in accordance with the provisions of this Section, it shall resign immediately in the manner and with the effect hereinafter specified in this Article.

SECTION 7.9 RESIGNATION AND REMOVAL; APPOINTMENT OF SUCCESSOR.

(a) No resignation or removal of the Agent and no appointment of a successor Agent pursuant to this Article shall become effective until the acceptance of appointment by the successor Agent in accordance with the applicable requirements of Section 7.10.

(b) The Agent may resign at any time by giving written notice thereof to the Company 60 days prior to the effective date of such resignation. If the instrument of acceptance by a successor Agent required by Section 7.10 shall not have been delivered to the Agent within 30 days after the giving of such notice of resignation, the resigning Agent may petition any court of competent jurisdiction for the appointment of a successor Agent.

(c) The Agent may be removed at any time by Act of the Holders of a majority in number of the Outstanding Securities delivered to the Agent and the Company.

(d) If at any time

(1) the Agent fails to comply with Section 310(b) of the TIA, after written request therefor by the Company or by any Holder who has been a bona fide Holder of a Security for at least six months, or

(2) the Agent shall cease to be eligible under Section 7.8 and shall fail to resign after written request therefor by the Company or by any such Holder, or

(3) the Agent shall become incapable of acting or shall be adjudged a bankrupt or insolvent or a receiver of the Agent or of its property shall be appointed or any public officer shall take charge or control of the Agent or of its property or affairs for the purpose of rehabilitation, conservation or liquidation, then, in any such case,
(i) the Company by a Board Resolution may remove the Agent, or (ii) any Holder who has been a bona fide

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Holder of a Security for at least six months may, on behalf of himself and all others similarly situated, petition any court of competent jurisdiction for the removal of the Agent and the appointment of a successor Agent.

(e) If the Agent shall resign, be removed or become incapable of acting, or if a vacancy shall occur in the office of Agent for any cause, the Company, by a Board Resolution, shall promptly appoint a successor Agent and shall comply with the applicable requirements of Section 7.10. If no successor Agent shall have been so appointed by the Company and accepted appointment in the manner required by Section 7.10, the Agent or any Holder who has been a bona fide Holder of a Security for at least six months may, on behalf of himself and all others similarly situated, petition any court of competent jurisdiction for the appointment of a successor Agent.

(f) The Company shall give, or shall cause such successor Agent to give, notice of each resignation and each removal of the Agent and each appointment of a successor Agent by mailing written notice of such event by first-class mail, postage prepaid, to all Holders as their names and addresses appear in the applicable Register. Each notice shall include the name of the successor Agent and the address of its Corporate Trust Office.

(g) If the Agent has or shall acquire any "conflicting interest" within the meaning of Section 310(b) of the TIA, the Agent and the Company shall in all respects comply with the provisions of Section 310(b) of the TIA.

SECTION 7.10 ACCEPTANCE OF APPOINTMENT BY SUCCESSOR.

(a) In case of the appointment hereunder of a successor Agent, every such successor Agent so appointed shall execute, acknowledge and deliver to the Company and to the retiring Agent an instrument accepting such appointment, and thereupon the resignation or removal of the retiring Agent shall become effective and such successor Agent, without any further act, deed or conveyance, shall become vested with all the rights, powers, agencies and duties of the retiring Agent; but, on the request of the Company or the successor Agent, such retiring Agent shall, upon payment of its charges, execute and deliver an instrument transferring to such successor Agent all the rights, powers and trusts of the retiring Agent and shall duly assign, transfer and deliver to such successor Agent all property and money held by such retiring Agent hereunder.

(b) Upon request of any such successor Agent, the Company shall execute any and all instruments for more fully and certainly vesting in and confirming to such successor Agent all such rights, powers and agencies referred to in paragraph (a) of this Section.

(c) No successor Agent shall accept its appointment unless at the time of such acceptance such successor Agent shall be qualified and eligible under this Article.

SECTION 7.11 MERGER, CONVERSION, CONSOLIDATION OR SUCCESSION TO BUSINESS.

Any Person into which the Agent may be merged or converted or with which it may be consolidated, or any Person resulting from any merger, conversion or consolidation to which the Agent shall be a party, or any Person succeeding to all or substantially all the corporate trust business of the Agent, shall be the successor of the Agent hereunder, provided such Person shall be otherwise qualified and eligible under this Article, without the execution or filing of any paper or any further act on the part of any of the parties hereto. In case any Certificates shall have been authenticated and executed on behalf of the Holders, but not delivered, by the Agent then in office, any successor by merger, conversion or consolidation to such Agent may adopt such authentication

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and execution and deliver the Certificates so authenticated and executed with the same effect as if such successor Agent had itself authenticated and executed such Securities.

SECTION 7.12 PRESERVATION OF INFORMATION; COMMUNICATIONS TO HOLDERS.

(a) The Agent shall preserve, in as current a form as is reasonably practicable, the names and addresses of Holders received by the Agent in its capacity as Registrar.

(b) If three or more Holders (herein referred to as "applicants") apply in writing to the Agent, and furnish to the Agent reasonable proof that each such applicant has owned a Security for a period of at least six months preceding the date of such application, and such application states that the applicants desire to communicate with other Holders with respect to their rights under this Agreement or under the Securities and is accompanied by a copy of the form of proxy or other communication which such applicants propose to transmit, then the Agent shall mail to all the Holders copies of the form of proxy or other communication which is specified in such request, with reasonable promptness after a tender to the Agent of the materials to be mailed and of payment, or provision for the payment, of the reasonable expenses of such mailing.

SECTION 7.13 NO OBLIGATIONS OF AGENT.

Except to the extent otherwise provided in this Agreement, the Agent assumes no obligations and shall not be subject to any liability under this Agreement, the Pledge Agreement or any Purchase Contract in respect of the obligations of the Holder of any Security thereunder. The Company agrees, and each Holder of a Certificate, by his acceptance thereof, shall be deemed to have agreed, that the Agent's execution of the Certificates on behalf of the Holders shall be solely as agent and attorney-in-fact for the Holders, and that the Agent shall have no obligation to perform such Purchase Contracts on behalf of the Holders, except to the extent expressly provided in Article V hereof.

SECTION 7.14 TAX COMPLIANCE.

(a) The Agent, on its own behalf and on behalf of the Company, will comply with all applicable certification, information reporting and withholding (including "backup" withholding) requirements imposed by applicable tax laws, regulations or administrative practice with respect to (i) any payments made with respect to the Securities or (ii) the issuance, delivery, holding, transfer, redemption or exercise of rights under the Securities. Such compliance shall include, without limitation, the preparation and timely filing of required returns and the timely payment of all amounts required to be withheld to the appropriate taxing authority or its designated agent.

(b) The Agent shall comply with any written direction received from the Company with respect to the application of such requirements to particular payments or Holders or in other particular circumstances, and may for purposes of this Agreement conclusively rely on any such direction in accordance with the provisions of Section 7.1(a)(2) hereof.

(c) The Agent shall maintain all appropriate records documenting compliance with such requirements, and shall make such records available, on written request, to the Company or its authorized representative within a reasonable period of time after receipt of such request.

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ARTICLE VIII

SUPPLEMENTAL AGREEMENTS

SECTION 8.1 SUPPLEMENTAL AGREEMENTS WITHOUT CONSENT OF HOLDERS.

Without the consent of any Holders, the Company and the Agent, at any time and from time to time, may enter into one or more agreements supplemental hereto, in form satisfactory to the Company and the Agent, for any of the following purposes:

(a) to evidence the succession of another Person to the Company, and the assumption by any such successor of the covenants of the Company herein and in the Certificates; or

(b) to add to the covenants of the Company for the benefit of the Holders, or to surrender any right or power herein conferred upon the Company; or

(c) to evidence and provide for the acceptance of appointment hereunder by a successor Agent; or

(d) to make provision with respect to the rights of Holders pursuant to the requirements of Section 5.6(b); or

(e) to cure any ambiguity, to correct or supplement any provisions herein which may be inconsistent with any other provisions herein, or to make any other provisions with respect to such matters or questions arising under this Agreement, provided such action shall not adversely affect the interests of the Holders.

SECTION 8.2 SUPPLEMENTAL AGREEMENTS WITH CONSENT OF HOLDERS.

With the consent of the Holders of not less than a majority of the outstanding Purchase Contracts voting together as one class, by Act of said Holders delivered to the Company and the Agent, the Company, when authorized by a Board Resolution, and the Agent may enter into an agreement or agreements supplemental hereto for the purpose of modifying in any manner the terms of the Purchase Contracts, or the provisions of this Agreement or the rights of the Holders in respect of the Securities; provided, however, that, except as contemplated herein, no such supplemental agreement shall, without the consent of the Holder of each Outstanding Security affected thereby,

(a) change any Payment Date;

(b) change the amount or the type of Collateral required to be Pledged to secure a Holder's Obligations under the Purchase Contract, impair the right of the Holder of any Purchase Contract to receive distributions on the related Collateral (except for the rights of Holders of Corporate Units to substitute the Treasury Securities for the Pledged Debt Securities or the Applicable Ownership Interest in a Treasury Portfolio or the rights of holders of Treasury Units to substitute Debt Securities or the Applicable Ownership Interest in a Treasury Portfolio for the Pledged Treasury Securities) or otherwise adversely affect the Holder's rights in or to such Collateral or adversely alter the rights in or to such Collateral;

(c) reduce any Contract Adjustment Payments or any Deferred Contract Adjustment Payment, or change any place where, or the coin or currency in which, any Contract Adjustment Payment is payable;

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(d) impair the right to institute suit for the enforcement of any Purchase Contract;

(e) reduce the number of shares of Common Stock to be purchased pursuant to any Purchase Contract, increase the price to purchase shares of Common Stock upon settlement of any Purchase Contract, change the Purchase Contract Settlement Date or the right to Early Settlement or otherwise adversely affect the Holder's rights under any Purchase Contract; or

(f) reduce the percentage of the outstanding Purchase Contracts the consent of whose Holders is required for any such supplemental agreement;

provided, that if any amendment or proposal referred to above would adversely affect only the Corporate Units or the Treasury Units, then only the Holders of the affected class of Security as of the record date for the Holders entitled to vote thereon will be entitled to vote on or consent to such amendment or proposal, and such amendment or proposal shall not be effective except with the consent of Holders of not less than a majority of such class; provided further, however, that no such agreement, whether with or without the consent of the Holders, shall affect Section 3.16 hereof.

It shall not be necessary for any Act of the Holders under this Section to approve the particular form of any proposed supplemental agreement, but it shall be sufficient if such Act shall approve the substance thereof.

SECTION 8.3 EXECUTION OF SUPPLEMENTAL AGREEMENTS.

In executing, or accepting the additional agencies created by, any supplemental agreement permitted by this Article or the modifications thereby of the agencies created by this Agreement, the Agent shall be entitled to receive and (subject to Section 7.1) shall be fully protected in relying upon, an Opinion of Counsel stating that the execution of such supplemental agreement is authorized or permitted by this Agreement. The Agent may, but shall not be obligated to, enter into any such supplemental agreement which affects the Agent's own rights, duties or immunities under this Agreement or otherwise.

SECTION 8.4 EFFECT OF SUPPLEMENTAL AGREEMENTS.

Upon the execution of any supplemental agreement under this Article, this Agreement shall be modified in accordance therewith, and such supplemental agreement shall form a part of this Agreement for all purposes; and every Holder of Certificates theretofore or thereafter authenticated, executed on behalf of the Holders and delivered hereunder shall be bound thereby.

SECTION 8.5 REFERENCE TO SUPPLEMENTAL AGREEMENTS.

Certificates authenticated, executed on behalf of the Holders and delivered after the execution of any supplemental agreement pursuant to this Article may, and shall if required by the Agent, bear a notation in form approved by the Agent as to any matter provided for in such supplemental agreement. If the Company shall so determine, new Certificates so modified as to conform, in the opinion of the Agent and the Company, to any such supplemental agreement may be prepared and executed by the Company and authenticated, executed on behalf of the Holders and delivered by the Agent in exchange for Outstanding Certificates.

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ARTICLE IX

CONSOLIDATION, MERGER, SALE OR CONVEYANCE

SECTION 9.1 COVENANT NOT TO MERGE, CONSOLIDATE, SELL OR CONVEY PROPERTY EXCEPT UNDER CERTAIN CONDITIONS.

The Company covenants that it will not merge or consolidate with or into any other Person or sell, assign, transfer, lease or convey all or substantially all of its properties and assets to any Person or group of affiliated Persons in one transaction or a series of related transactions, unless (i) either the Company shall be the continuing entity, or the successor (if other than the Company) shall be a Person, other than an individual, organized and existing under the laws of the United States of America or a State thereof or the District of Columbia and such entity shall expressly assume all the obligations of the Company under the Purchase Contracts, the Debt Securities, this Agreement and the Pledge Agreement by one or more supplemental agreements in form reasonably satisfactory to the Agent and the Collateral Agent, executed and delivered to the Agent and the Collateral Agent by such Person, and (ii) the Company or such successor entity, as the case may be, shall not, immediately after such merger or consolidation, or such sale, assignment, transfer, lease or conveyance, be in default in its payment obligations or in any material default in the performance of any of its other obligations hereunder, or under any of the Securities or the Pledge Agreement.

SECTION 9.2 RIGHTS AND DUTIES OF SUCCESSOR ENTITY.

In case of any such consolidation, merger, sale, assignment, transfer, lease or conveyance and upon any such assumption by a successor entity in accordance with Section 9.1, such successor entity shall succeed to and be substituted for the Company with the same effect as if it had been named herein as the Company. Such successor entity thereupon may cause to be signed, and may issue either in its own name or in the name of TXU Corp. any or all of the Certificates evidencing Securities issuable hereunder which theretofore shall not have been signed by the Company and delivered to the Agent; and, upon the order of such successor corporation, instead of the Company, and subject to all the terms, conditions and limitations in this Agreement prescribed, the Agent shall authenticate and execute on behalf of the Holders and deliver any Certificates which previously shall have been signed and delivered by the officers of the Company to the Agent for authentication and execution, and any Certificate evidencing Securities which such successor entity thereafter shall cause to be signed and delivered to the Agent for that purpose. All the Certificates so issued shall in all respects have the same legal rank and benefit under this Agreement as the Certificates theretofore or thereafter issued in accordance with the terms of this Agreement as though all of such Certificates had been issued at the date of the execution hereof.

In case of any such consolidation, merger, sale, assignment, transfer, lease or conveyance such change in phraseology and form (but not in substance) may be made in the Certificates evidencing Securities thereafter to be issued as may be appropriate.

SECTION 9.3 OPINION OF COUNSEL GIVEN TO AGENT.

The Agent, subject to Sections 7.1 and 7.3, shall receive an Opinion of Counsel as conclusive evidence that any such consolidation, merger, sale, assignment, transfer, lease or conveyance, and any such assumption, complies with the provisions of this Article and that all conditions precedent to the consummation of any such consolidation, merger, sale, assignment, transfer, lease or conveyance have been met.

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ARTICLE X

COVENANTS

SECTION 10.1 PERFORMANCE UNDER PURCHASE CONTRACTS.

The Company covenants and agrees for the benefit of the Holders from time to time of the Securities that it will duly and punctually perform its obligations under the Purchase Contracts in accordance with the terms of the Purchase Contracts and this Agreement.

SECTION 10.2 MAINTENANCE OF OFFICE OR AGENCY.

The Company will maintain in the Borough of Manhattan, The City of New York an office or agency where Certificates may be presented or surrendered for acquisition of shares of Common Stock upon settlement of the Purchase Contracts on the Purchase Contract Settlement Date or Early Settlement and for transfer of Collateral upon occurrence of a Termination Event, where Certificates may be surrendered for registration of transfer or exchange, for a Collateral Substitution or establishment of a Corporate Unit and where notices and demands to or upon the Company in respect of the Securities and this Agreement may be served. The Company will give prompt written notice to the Agent of the location, and any change in the location, of such office or agency. If at any time the Company shall fail to maintain any such required office or agency or shall fail to furnish the Agent with the address thereof, such presentations, surrenders, notices and demands may be made or served at the Corporate Trust Office, and the Company hereby appoints the Agent as its agent to receive all such presentations, surrenders, notices and demands.

The Company may also from time to time designate one or more other offices or agencies where Certificates may be presented or surrendered for any or all such purposes and may from time to time rescind such designations; provided, however, that no such designation or rescission shall in any manner relieve the Company of its obligation to maintain an office or agency in the Borough of Manhattan, The City of New York for such purposes. The Company will give prompt written notice to the Agent of any such designation or rescission and of any change in the location of any such other office or agency. The Company hereby designates as the place of payment for the Securities the Corporate Trust Office and appoints the Agent at its Corporate Trust Office as paying agent in such city.

SECTION 10.3 COMPANY TO RESERVE COMMON STOCK.

The Company shall at all times prior to the Purchase Contract Settlement Date reserve and keep available, free from preemptive rights, out of its authorized but unissued Common Stock the full number of shares of Common Stock issuable against tender of payment in respect of all Purchase Contracts constituting a part of the Securities evidenced by Outstanding Certificates.

SECTION 10.4 COVENANTS AS TO COMMON STOCK.

The Company covenants that all shares of Common Stock which may be issued against tender of payment in respect of any Purchase Contract constituting a part of the Outstanding Securities will, upon issuance, be duly authorized, validly issued, fully paid and nonassessable.

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ARTICLE XI

TRUST INDENTURE ACT

SECTION 11.1 TRUST INDENTURE ACT; APPLICATION.

(a) This Agreement is subject to the provisions of the TIA that are required or deemed to be part of this Agreement and shall, to the extent applicable, be governed by such provisions; and

(b) if and to the extent that any provision of this Agreement limits, qualifies or conflicts with the duties imposed by Section 310 to 317, inclusive, of the TIA, such imposed duties shall control.

SECTION 11.2 LISTS OF HOLDERS OF SECURITIES.

(a) The Company shall furnish or cause to be furnished to the Agent
(a) semi-annually, not later than [June 1] and [December 1] in each year, commencing ________________, a list, in such form as the Agent may reasonably require, of the names and addresses of the Holders ("List of Holders") as of a date not more than 15 days prior to the delivery thereof, and (b) at such other times as the Agent may request in writing, within 30 days after the receipt by the Company of any such request, a List of Holders as of a date not more than 15 days prior to the time such list is furnished; provided that, the Company shall not be obligated to provide such List of Holders at any time the List of Holders does not differ from the most recent List of Holders given to the Agent by the Company. The Agent may destroy any List of Holders previously given to it on receipt of a new List of Holders.

(b) The Agent shall comply with its obligations under Section 311(a) of the TIA, subject to the provisions of Section 311(b) and Section 312(b) of the TIA.

SECTION 11.3 REPORTS BY THE AGENT.

Not later than [November 1] of each year, commencing [November 1,] ____, the Agent shall provide to the Holders such reports, if any, as are required by Section 313(a) of the TIA in the form and in the manner provided by
Section 313(a) of the TIA. Such reports shall be as of the preceding [September 15]. The Agent shall also comply with the requirements of Sections 313(b), (c) and (d) of the TIA.

SECTION 11.4 PERIODIC REPORTS TO AGENT.

The Company shall provide to the Agent such documents, reports and information as required by Section 314(a) (if any) and the compliance certificate required by Section 314(a) of the TIA in the form, in the manner and at the times required by Section 314(a) of the TIA.

SECTION 11.5 EVIDENCE OF COMPLIANCE WITH CONDITIONS PRECEDENT.

The Company shall provide to the Agent such evidence of compliance with any conditions precedent provided for in this Agreement as and to the extent required by Section 314(c) of the TIA. Any certificate or opinion required to be given by an officer pursuant to Section 314(c)(1) of the TIA may be given in the form of a Company's Certificate. Any opinion required to be given pursuant to
Section 314(c)(2) of the TIA may be given in the form of an Opinion of Counsel.

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SECTION 11.6 DEFAULTS; WAIVER.

The Holders of a majority of the Outstanding Purchase Contracts voting together as one class may, by vote or consent, on behalf of all of the Holders, waive any past Default and its consequences, except a Default

(a) in the payment on any Security, or

(b) in respect of a provision hereof which under Section 8.2 cannot be modified or amended without the consent of the Holder of each Outstanding Security affected.

Upon such waiver, any such Default shall cease to exist, and any Default arising therefrom shall be deemed to have been cured, for every purpose of this Agreement, but no such waiver shall extend to any subsequent or other Default or impair any right consequent thereon.

SECTION 11.7 AGENT'S KNOWLEDGE OF DEFAULTS.

The Agent shall not be deemed to have knowledge of any Default unless a Responsible Officer shall have obtained written notice of such Default.

SECTION 11.8 CONFLICTING INTERESTS.

The Indenture, the Indenture (For Unsecured Debt Securities Series A), dated as of October 1, 1997, of the Company to The Bank of New York, as trustee, the Indenture (For Unsecured Debt Securities Series B), dated as of October 1, 1997, of the Company to The Bank of New York, as trustee, the Indenture (For Unsecured Debt Securities Series C), dated as of January 1, 1998, of the Company to The Bank of New York, as trustee, the Purchase Contract Agreement dated as of July 1, 1998 of the Company to The Bank of New York, as agent, attorney-in-fact and trustee, the Indenture (For Unsecured Debt Securities Series D and Series
E), dated as of July 1, 1998, of the Company to The Bank of New York, as trustee, the Indenture (For Unsecured Debt Securities Series F), dated as of October 1, 1998 of the Company to The Bank of New York, as trustee, the Indenture (For Unsecured Debt Securities Series G), dated as of October 1, 1998, of the Company to The Bank of New York, as trustee, the Indenture (For Unsecured Debt Securities Series H), dated as of June 1, 1999, of the Company to The Bank of New York, as trustee, the Indenture (For Unsecured Debt Securities Series I), dated as of September 1, 1999, of the Company to The Bank of New York, as trustee, the Indenture (For Unsecured Debt Securities Series J), dated as of July 1, 2001, of the Company to The Bank of New York, as trustee, the Indenture (For Unsecured Debt Securities Series K and Series L), dated as of October 1, 2001, of the Company to The Bank of New York, as trustee, the Purchase Contract Agreement, dated as of October 1, 2001, of the Company to The Bank of New York, as agent, attorney-in-fact and trustee, the Indenture (For Unsecured Debt Securities Series M), dated as of June 1, 2002, of the Company to The Bank of New York, as trustee, the Purchase Contract Agreement, dated as of June 1, 2002, of the Company to The Bank of New York, as agent, attorney-in-fact and trustee, or the Indenture (For Unsecured Debt Securities Series N), dated as of July 1, 2003, of the Company to The Bank of New York, as trustee shall be deemed to be specifically described in this Agreement for the purposes of clause (i) of the first proviso contained in Section 310(b) of the TIA.

SECTION 11.9 DIRECTION OF AGENT.

Sections 316(a)(1)(A) of the TIA is hereby expressly excluded from this Agreement, as permitted by the TIA.

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IN WITNESS WHEREOF, the parties hereto have caused this Purchase Contract Agreement to be duly executed as of the day and year first above written.

TXU CORP.

By:

Name:


Title:

THE BANK OF NEW YORK,
as Purchase Contract Agent and Trustee

By:

Name:


Title:

55

EXHIBIT A

FORM OF CORPORATE UNIT CERTIFICATE

THIS CERTIFICATE IS A GLOBAL CERTIFICATE WITHIN THE MEANING OF THE PURCHASE CONTRACT AGREEMENT (AS HEREINAFTER DEFINED) AND IS REGISTERED IN THE NAME OF THE CLEARING AGENCY OR A NOMINEE THEREOF. THIS CERTIFICATE MAY NOT BE EXCHANGED IN WHOLE OR IN PART FOR A CERTIFICATE REGISTERED, AND NO TRANSFER OF THIS CERTIFICATE IN WHOLE OR IN PART MAY BE REGISTERED, IN THE NAME OF ANY PERSON OTHER THAN SUCH CLEARING AGENCY OR A NOMINEE THEREOF, EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE PURCHASE CONTRACT AGREEMENT.

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW YORK, NEW YORK) TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO., OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, AND ANY PAYMENT HEREON IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY A PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

No. _____ Cusip No.___________ Number of Corporate Units _______

TXU CORP.

_____% Corporate Units

($__ Stated Amount)

This Corporate Unit Certificate certifies that ___________ is the registered Holder of the number of Corporate Units set forth above. Each Corporate Unit represents (a) a stock purchase contract of TXU Corp., a Texas corporation (the "Company") (as modified and supplemented and in effect from time to time, a "Purchase Contract") and (b) beneficial ownership of either (A)
(i) beneficial ownership of a Series _ Senior Note due ____________ of the Company ("Debt Security"), having a principal amount of $__ or (ii) following a successful remarketing of the Debt Securities on the Initial Remarketing Date, an Applicable Ownership Interest in the appropriate Treasury Portfolio, subject to the pledge of such Debt Security or Applicable Ownership Interest in the appropriate Treasury Portfolio by the Holder pursuant to the Pledge Agreement or (B) upon the occurrence of a Tax Event Redemption prior to the Purchase Contract Settlement Date, an Applicable Ownership Interest in the appropriate Treasury Portfolio, subject to the Pledge of such Applicable Ownership Interest in the appropriate Treasury Portfolio by the Holder pursuant to the Pledge Agreement. All capitalized terms used herein without definition herein shall have the meaning set forth in the Purchase Contract Agreement referred to below.

Pursuant to the Pledge Agreement, the Debt Securities or the appropriate Applicable Ownership Interest in the Treasury Portfolio, as the case may be, constituting part of each Corporate Unit evidenced hereby have been pledged to the Collateral Agent, for the benefit of the Company, to secure the obligations of the Holder under the Purchase Contract comprising a portion of such Corporate Unit.

The Pledge Agreement provides that all payments of the principal amount of Pledged Debt Securities or the Stated Amount of the Pledged Applicable Ownership Interest (as specified in clause (1) of the definition of such term)

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in the appropriate Treasury Portfolio, as the case may be, or payments of interest on any Pledged Debt Securities or the Pledged Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, constituting part of the Corporate Units received by the Collateral Agent shall be paid by the Collateral Agent by wire transfer in same day funds (i) in the case of (A) payments of interest with respect to Pledged Debt Securities or cash distributions on the Pledged Applicable Ownership Interest (as specified in clauses (1)(ii), (1)(iii) or (2)(ii) of the definition of such term) in the appropriate Treasury Portfolio, as the case may be, and (B) any payments of the principal amount of Pledged Debt Securities or the Stated Amount of the Pledged Applicable Ownership Interest (as specified in clauses (1)(i) or (2)(i) of the definition of such term) in the appropriate Treasury Portfolio, as the case may be, with respect to any Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, that have been released from the Pledge pursuant to the Pledge Agreement, to the Agent to the account designated by the Agent, no later than 2:00 p.m., New York City time, on the Business Day such payment is received by the Collateral Agent (provided that in the event such payment is received by the Collateral Agent on a day that is not a Business Day or after 12:30 p.m., New York City time, on a Business Day, then such payment shall be made no later than 10:30 a.m., New York City time, on the next succeeding Business Day) and (ii) in the case of payments of the principal amount of Debt Securities or the Applicable Ownership Interest (as specified in clauses (1)(i) or (2)(i) of the definition of such term) in the appropriate Treasury Portfolio, as the case may be, to the Company on the Purchase Contract Settlement Date (as defined herein) in accordance with the terms of the Pledge Agreement, in full satisfaction of the respective obligations of the Holders of the Corporate Units of which such Pledged Debt Securities or the Pledged Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, are a part under the Purchase Contracts forming a part of such Corporate Units. Payment of interest on any Pledged Debt Securities or cash distribution on the Pledged Applicable Ownership Interest (as specified in clauses (1)(ii), 1(iii) or (2)(ii) of the definition of such term) in the appropriate Treasury Portfolio, as the case may be, forming part of a Corporate Unit evidenced hereby which are payable quarterly in arrears on ___________, ______, _________ and ______ of each year, commencing _______________,
[and________________________________] (each a "Payment Date"), shall, subject to receipt thereof by the Agent from the Collateral Agent, be paid to the Person in whose name this Corporate Unit Certificate (or a Predecessor Corporate Unit Certificate) is registered at the close of business on the Record Date for such Payment Date.

Each Purchase Contract evidenced hereby obligates the Holder of this Corporate Unit Certificate to purchase, and the Company to sell, not later than ___________ (the "Purchase Contract Settlement Date"), at a price of $__ in cash (the "Purchase Price"), a number of newly-issued shares of Common Stock, without par value including, where applicable, the preference stock purchase rights appurtenant thereto ("Common Stock"), of the Company equal to the applicable Settlement Rate (as defined below), unless on or prior to the Purchase Contract Settlement Date there shall have occurred a Termination Event or an Early Settlement with respect to the Corporate Units of which such Purchase Contract is a part, all as provided in the Purchase Contract Agreement and more fully described on the herein.

The Settlement Rate is equal to ______________________________.

The Company shall pay, on each Payment Date other than the Initial Reset Date, if the Initial Reset Date is not also a regular quarterly Payment Date in respect of each Purchase Contract forming part of a Corporate Unit evidenced hereby, an amount (the "Contract Adjustment Payments") equal to _____% per annum of the Stated Amount; computed on the basis of a 360-day year of twelve 30-day months, subject to deferral at the option of the Company as provided in the Purchase Contract Agreement and more fully described herein. Such Contract Adjustment Payments shall be payable to the Person in whose name this Corporate Unit Certificate (or a Predecessor Corporate Unit Certificate or a Predecessor Treasury Unit Certificate) is registered on the Register at the close of business on the Record Date for such Payment Date.

Contract Adjustment Payments will be payable at the Corporate Trust Office or, at the option of the Company, by check mailed to the address of the Person entitled thereto at such Person's address as it appears on the Corporate

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Unit Register or by wire transfer to an account appropriately designated in writing by the Person entitled to payment.

Unless the context otherwise requires, each provision of this Security shall be part of the Purchase Contracts evidenced hereby. This Security and each Purchase Contract evidenced hereby is governed by a Purchase Contract Agreement, dated as of ______________ (as may be supplemented from time to time, the "Purchase Contract Agreement"), between the Company and The Bank of New York, as purchase contract agent and trustee (including any successor thereunder, herein called the "Agent"), to which Purchase Contract Agreement and supplemental agreements thereto reference is hereby made for a description of the respective rights, limitations of rights, obligations, duties and immunities thereunder of the Agent, the Company, and the Holders and of the terms upon which the Corporate Unit Certificates are, and are to be, executed and delivered.

Each Purchase Contract evidenced hereby, which is settled either through Early Settlement or Cash Settlement, shall obligate the Holder of the related Corporate Units to purchase at the applicable Purchase Price, and the Company to sell, a number of newly issued shares of Common Stock equal to the Early Settlement Rate or the applicable Settlement Rate, as applicable.

The "Applicable Market Value" means the average of the Closing Price per share of Common Stock on each of the __ consecutive Trading Days ending on the third Trading Day immediately preceding the Purchase Contract Settlement Date. The "Closing Price" of the Common Stock on any date of determination means the closing sale price (or, if no closing price is reported, the last reported sale price) of the Common Stock on the New York Stock Exchange (the "NYSE") on such date or, if the Common Stock is not listed for trading on the NYSE on any such date, as reported in the composite transactions for the principal United States national or regional securities exchange on which the Common Stock is so listed. If the Common Stock is not so listed on a United States national or regional securities exchange, the Closing Price means the last sale price of the Common Stock as reported by the NASDAQ Stock Market, or if the Common Stock is not so reported, the last quoted bid price for the Common Stock in the over-the-counter market as reported by the National Quotation Bureau or similar organization. If such bid price is not available, the Closing Price means market value of the Common Stock on such date as determined by a nationally recognized independent investment banking firm retained by the Company for this purpose. A "Trading Day" means a day on which the Common Stock (A) is not suspended from trading on any national or regional securities exchange or association or over-the-counter market at the close of business and (B) has traded at least once on the national or regional securities exchange or association or over-the-counter market that is the primary market for the trading of the Common Stock.

In accordance with the terms of the Purchase Contract Agreement, the Holder of the Corporate Units evidenced hereby shall pay, on the Purchase Contract Settlement Date, the applicable Purchase Price for the shares of Common Stock purchased pursuant to each Purchase Contract evidenced hereby by effecting a Cash Settlement or, an Early Settlement. A Holder of Corporate Units who does not make such payment in accordance with the Purchase Contract Agreement or who does not notify the Agent of such Holder's intention, on or prior to 5:00 p.m., New York City time, on the fifth Business Day immediately preceding the Purchase Contract Settlement Date, to make an effective Cash Settlement or an Early Settlement, shall have defaulted in its obligations under the related Purchase Contract and the Collateral Agent shall exercise its rights as a secured creditor for the benefit of the Company under the Purchase Contract Agreement and the Pledge Agreement and shall apply the Proceeds of the sale of the related applicable Pledged Debt Securities held by the Collateral Agent to satisfy the Holder's obligations under such Purchase Contract to purchase Common Stock at the Purchase Price.

The Company shall not be obligated to issue any shares of Common Stock in respect of the Purchase Contract on the Purchase Contract Settlement Date or deliver any certificates therefor to the Holder unless it shall have received payment in full of the aggregate Purchase Price for the shares of Common Stock to be purchased thereunder in the manner herein set forth.

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Under and subject to the terms of the Pledge Agreement and the Purchase Contract Agreement, the Agent will be entitled to exercise the voting and any other consensual rights pertaining to the Pledged Debt Securities, but only to the extent instructed by the Holders as described in the paragraph below. Upon receipt of notice of any meeting at which holders of Debt Securities are entitled to vote or upon the solicitation of consents, waivers or proxies of holders of Debt Securities, the Agent shall, as soon as practicable thereafter, mail to the Holders of Corporate Units a notice (a) containing such information as is contained in the notice or solicitation, (b) stating that each Corporate Unit Holder on the record date set by the Agent therefor shall be entitled to instruct the Agent as to the exercise of the voting rights pertaining to the Debt Securities constituting a part of such Holder's Corporate Unit and (c) stating the manner in which such instructions may be given. Upon the written request of the Corporate Unit Holders on such record date, the Agent shall endeavor insofar as practicable to vote or cause to be voted, in accordance with the instructions set forth in such requests, the maximum number of Debt Securities as to which any particular voting instructions are received. In the absence of specific instructions from the Holder of a Corporate Units, the Agent shall abstain from voting any Debt Securities evidenced by such Corporate Units.

Upon the occurrence of a Tax Event Redemption prior to the Purchase Contract Settlement Date, the Redemption Price payable on the Tax Event Redemption Date with respect to the Applicable Principal Amount of Debt Securities shall be delivered to the Collateral Agent in exchange for the Pledged Debt Securities. Pursuant to the terms of the Pledge Agreement, the Collateral Agent will apply an amount equal to the Redemption Amount of such Redemption Price to purchase on behalf of the Holders of Corporate Units the Tax Event Treasury Portfolio and promptly remit the remaining portion of such Redemption Price, if any, to the Agent for payment to the Holders of such Corporate Units. The Tax Event Treasury Portfolio will be substituted for the Pledged Debt Securities, and will be held by the Collateral Agent in accordance with the terms of the Pledge Agreement to secure the obligation of each Holder of a Corporate Unit to purchase the Common Stock of the Company on the Purchase Contract Settlement Date under the Purchase Contract constituting a part of such Corporate Unit. Following the occurrence of a Tax Event Redemption prior to the Purchase Contract Settlement Date, the Holders of Corporate Units and the Collateral Agent shall have such security interests, rights and obligations with respect to the Tax Event Treasury Portfolio as the Holder of Corporate Units and the Collateral Agent had in respect of the Debt Securities subject to the Pledge thereof as provided in Articles II, III, IV, V and VI of the Pledge Agreement, and any reference herein to the Pledged Debt Securities shall be deemed to be reference to such Tax Event Treasury Portfolio. The Company may cause to be made in any Corporate Unit Certificates thereafter to be issued such change in phraseology and form (but not in substance) as may be appropriate to reflect the substitution of the Tax Event Treasury Portfolio for Debt Securities as collateral.

Upon the successful remarketing of the Pledged Debt Securities on the Initial Remarketing Date, the proceeds of such remarketing (after deducting any Remarketing Fee) shall be delivered to the Collateral Agent in exchange for the Pledged Debt Securities. Pursuant to the terms of the Pledge Agreement, the Collateral Agent will apply an amount equal to the Remarketing Treasury Portfolio Purchase Price to purchase on behalf of the Holders of Corporate Units the Remarketing Treasury Portfolio and promptly remit the remaining portion of such proceeds to the Agent for payment to the Holders of such Corporate Units. The Remarketing Treasury Portfolio will be substituted for the outstanding Pledged Debt Securities, and will be held by the Collateral Agent in accordance with the terms of the Pledge Agreement to secure the obligation of each Holder of a Corporate Unit to purchase the Common Stock of the Company on the Purchase Contract Settlement Date under the Purchase Contract constituting a part of such Corporate Unit. Following the successful remarketing of the Pledged Debt Securities on the Initial Remarketing Date, the Holders of Corporate Units and the Collateral Agent shall have such security interests, rights and obligations with respect to the Remarketing Treasury Portfolio as the Holder of Corporate Units and the Collateral Agent had in respect of the Debt Securities subject to the Pledge thereof as provided in Articles II, III, IV, V and VI of the Pledge Agreement, and any reference herein to the Debt Securities shall be deemed to be reference to such Remarketing Treasury Portfolio. The Company may cause to be made in any Corporate Unit Certificates thereafter to be issued such change in

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phraseology and form (but not in substance) as may be appropriate to reflect the substitution of the Remarketing Treasury Portfolio for Debt Securities as collateral.

The Corporate Units are issuable only in registered form and only in denominations of a single Corporate Unit and any integral multiple thereof. The transfer of any Corporate Unit Certificate will be registered and Corporate Unit Certificates may be exchanged as provided in the Purchase Contract Agreement. The Corporate Unit Registrar may require a Holder, among other things, to furnish appropriate endorsements and transfer documents permitted by the Purchase Contract Agreement. No service charge shall be required for any such registration of transfer or exchange, but the Company and the Agent may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith.

A Holder of a Corporate Unit may, at any time on or prior to the fifth Business Day immediately preceding the Purchase Contract Settlement Date, create or recreate a Treasury Unit and separate the Debt Security or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as applicable, from the related Purchase Contract in respect of such Corporate Unit by substituting the appropriate Treasury Security for the Debt Security, or the Applicable Ownership Interest in the appropriate Treasury Portfolio, that form a part of such Corporate Unit in accordance with the Purchase Contract Agreement; provided, however, that if a successful remarketing of the Debt Securities has occurred on the Initial Remarketing Date or a Tax Event Redemption has occurred, Holders of such Corporate Units may make such Collateral Substitutions at any time on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. Holders may make Collateral Substitutions and establish Treasury Units (i) only in integral multiples of __ Corporate Units if only Debt Securities are being substituted by Treasury Securities, or (ii) only in integral multiples of ______ Corporate Units if the Applicable Ownership Interests in the appropriate Treasury Portfolio are being substituted by Treasury Securities. To create __ Treasury Units (if a Tax Event Redemption has not occurred and the Debt Securities remain a component of the Corporate Units), or ______ Treasury Units (if a Tax Event Redemption has occurred or the Remarketing Treasury Portfolio has replaced the Debt Securities as a component of the Corporate Units as a result of a successful remarketing of such Debt Securities), the Corporate Unit Holder shall

(a) if a Treasury Portfolio has not replaced any Debt Securities as a component of Corporate Units as a result of a successful remarketing of the Debt Securities on the Initial Remarketing Date or a Tax Event Redemption, deposit with the Collateral Agent a Treasury Security having a principal amount at maturity of $[1,000]; or

(b) if a Treasury Portfolio has replaced the Debt Securities as a component of Corporate Units as a result of a successful remarketing of the Debt Securities on the Initial Remarketing Date or a Tax Event Redemption, on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent Treasury Securities having an aggregate principal amount at maturity of $_________; and

(c) in each case, transfer and surrender the related __ Corporate Units, or, in the event a Treasury Portfolio is a component of Corporate Units, ______ Corporate Units, to the Agent accompanied by a notice to the Agent, substantially in the form of Exhibit B to the Pledge Agreement, stating that the Holder has transferred the relevant types and amounts of Treasury Securities to the Collateral Agent and requesting that the Agent instruct the Collateral Agent to release the applicable Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, underlying such Corporate Unit, whereupon the Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A to the Pledge Agreement.

Upon receipt of the Treasury Securities described in clause (a) or (b) above and the instructions described in clause (c) above, in accordance with the terms of the Pledge Agreement, the Collateral Agent will release from the

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Pledge, to the Agent, on behalf of the Holder, Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, that had been components of such Corporate Unit, free and clear of the Company's security interest therein, and upon receipt thereof the Agent shall promptly:

(i) cancel the related Corporate Units surrendered and transferred;

(ii) transfer the Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, that had been components of such Corporate Unit to the Holder; and

(iii) authenticate, execute on behalf of such Holder and deliver a Treasury Unit Certificate executed by the Company in accordance with the Purchase Contract Agreement evidencing the same number of Purchase Contracts as were evidenced by the cancelled Corporate Units.

Holders who elect to separate the Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, from the related Purchase Contracts and to substitute Treasury Securities for such Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, shall be responsible for any fees or expenses payable to the Collateral Agent for its services as Collateral Agent in respect of the substitution, and the Company shall not be responsible for any such fees or expenses.

A Holder of a Treasury Unit may create or recreate a Corporate Unit by depositing with the Collateral Agent a Debt Security or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, having an aggregate principal amount equal to the aggregate principal amount at maturity of, and in substitution for all, but not less than all, of the Treasury Securities comprising part of the Treasury Unit in exchange for the release of such Pledged Treasury Securities in accordance with the terms of the Purchase Contract Agreement and the Pledge Agreement.

Subject to the next succeeding paragraph, the Company shall pay, on each Payment Date, except the Initial Reset Date, if the Initial Reset Date is not also a quarterly Payment Date the Contract Adjustment Payments payable in respect of each Purchase Contract to the Person in whose name the Corporate Unit Certificate evidencing such Purchase Contract is registered on the Register at the close of business on the Record Date next preceding such Payment Date. The Contract Adjustment Payments will be payable at the Corporate Trust Office or, at the option of the Company, by check mailed to the address of the Person entitled thereto at such address as it appears on the Corporate Unit Register or by wire transfer to an account appropriately designated in writing by such person.

The Company shall have the right, at any time prior to the Purchase Contract Settlement Date, to defer the payment of any or all of the Contract Adjustment Payments otherwise payable on any Payment Date, but only if the Company shall give the Holders and the Agent written notice of its election to defer such payment (specifying the amount to be deferred) as provided in the Purchase Contract Agreement. Any Contract Adjustment Payments so deferred shall bear additional Contract Adjustment Payments thereon at the rate of _____% per annum (computed on the basis of a 360-day year of twelve 30-day months), compounding on each succeeding Payment Date, until paid in full (such deferred installments of Contract Adjustment Payments, if any, together with the additional Contract Adjustment Payments accrued thereon, are referred to herein as the "Deferred Contract Adjustment Payments"). Deferred Contract Adjustment Payments, if any, shall be due on the next succeeding Payment Date except to the extent that payment is deferred pursuant to the Purchase Contract Agreement. No Contract Adjustment Payments may be deferred to a date that is after the Purchase Contract Settlement Date.

In the event that the Company elects to defer the payment of Contract Adjustment Payments on the Purchase Contracts until the Purchase Contract Settlement Date, the Holder of this Corporate Unit Certificate will receive on the Purchase Contract Settlement Date, in lieu of a cash payment, a number of

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shares of Common Stock (in addition to the number of shares equal to the Settlement Rate) equal to (x) the aggregate amount of Deferred Contract Adjustment Payments payable to the Holder of this Corporate Unit Certificate divided by (y) the Applicable Market Value.

In the event the Company exercises its option to defer the payment of Contract Adjustment Payments, then, until the Deferred Contract Adjustment Payments have been paid, the Company shall not declare or pay dividends on, make distributions with respect to, or redeem, purchase or acquire, or make a liquidation payment with respect to, any of its capital stock or make guarantee payments with respect to the foregoing (other than (i) purchases, redemptions or acquisitions of shares of capital stock of the Company in connection with any employment contract, benefit plan or other similar arrangement with or for the benefit of employees, officers, directors or agents or a stock purchase or dividend reinvestment plan, or the satisfaction by the Company of its obligations pursuant to any contract or security outstanding on the date of such event or agent benefit plans or the satisfaction by the Company of its obligations pursuant to any contract or security outstanding on the date of such event requiring the Company to purchase, redeem or acquire its capital stock,
(ii) as a result of a reclassification of the Company's capital stock or the exchange or conversion of one class or series of the Company's capital stock for another class or series of the Company's capital stock, (iii) the purchase of fractional interests in shares of the Company's capital stock pursuant to the conversion or exchange provisions of the Company's capital stock or the security being converted or exchanged, (iv) dividends or distributions in capital stock of the Company (or rights to acquire capital stock) or repurchases, redemptions or acquisitions of capital stock in connection with the issuance or exchange of the Company's capital stock (or securities convertible into or exchangeable for shares of capital stock) or (v) redemptions, exchanges or repurchases of any rights outstanding under a shareholder rights plan or the declaration or payment thereunder of a dividend or distribution of or with respect to rights in the future.

The Purchase Contracts and all obligations and rights of the Company and the Holders thereunder, including, without limitation, the rights of the Holders to receive and the obligation of the Company to pay any Contract Adjustment Payments or any Deferred Contract Adjustment Payments, and the rights and obligations of the Holders to purchase Common Stock, shall immediately and automatically terminate, without the necessity of any notice or action by any Holder, the Agent or the Company, if, on or prior to the Purchase Contract Settlement Date, a Termination Event shall have occurred. Upon the occurrence of a Termination Event, the Company shall promptly but in no event later than two Business Days thereafter give written notice to the Agent, the Collateral Agent and to the Holders, at their addresses as they appear in the Corporate Unit Register. Upon and after the occurrence of a Termination Event, the Collateral Agent shall release the Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, forming a part of the Corporate Units evidenced hereby from the Pledge in accordance with the provisions of the Pledge Agreement.

Subject to and upon compliance with the provisions of the Purchase Contract Agreement, a Holder of Corporate Units may settle the related Purchase Contracts in their entirety at any time on or prior to the fifth Business Day immediately preceding the Purchase Contract Settlement Date, but only in integral multiples of __ Corporate Units; provided, however, that if a Treasury Portfolio has become a component of the Corporate Units, Holders of Corporate Units may settle early only in integral multiples of ______ Corporate Units at any time on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. In order to exercise the right to effect any such early settlement ("Early Settlement") with respect to any Purchase Contracts evidenced by this Corporate Unit Certificate, the Holder of this Corporate Unit Certificate shall deliver this Corporate Unit Certificate to the Agent at the Corporate Trust Office duly endorsed for transfer to the Company or in blank with the form of Election to Settle Early set forth below duly completed and executed and accompanied by payment payable to the Company in immediately available funds in an amount (the "Early Settlement Amount") equal to the sum of (i) $__ times the number of Purchase Contracts being settled, plus
(ii) if such delivery is made with respect to any Purchase Contracts during the period from the close of business on any Record Date next preceding any Payment Date to the opening of business on such Payment Date, an amount equal to the Contract Adjustment Payments payable, if any, on such Payment Date with respect

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to such Purchase Contracts. Upon Early Settlement of Purchase Contracts by a Holder of the related Securities, the Pledged Debt Securities or the Pledged Applicable Ownership Interest in the a Treasury Portfolio underlying such Securities shall be released from the Pledge as provided in the Pledge Agreement and the Holder shall be entitled to receive a number of shares of Common Stock on account of each Purchase Contract forming part of a Corporate Unit as to which Early Settlement is effected equal to the Early Settlement Rate which shall be equal to ______ newly issued shares of Common Stock per Purchase Contract (the "Early Settlement Rate"); provided however, that upon the Early Settlement of the Purchase Contracts, (i) the Holder thereof will forfeit the right to receive any Deferred Contract Adjustment Payments, if any, on such Purchase Contracts, (ii) the Holder's right to receive additional Contract Adjustment Payments in respect of such Purchase Contracts will terminate, and
(iii) no adjustment will be made to or for the Holder on account of Deferred Contract Adjustment Payments, or any amount accrued in respect of Contract Adjustment Payments. The Early Settlement Rate shall be adjusted in the same manner and at the same time as the Settlement Rate is adjusted as provided in the Purchase Contract Agreement.

Upon registration of transfer of this Corporate Unit Certificate, the transferee shall be bound (without the necessity of any other action on the part of such transferee, except as may be required by the Agent pursuant to the Purchase Contract Agreement), under the terms of the Purchase Contract Agreement and the Purchase Contracts evidenced hereby and the transferor shall be released from the obligations under the Purchase Contracts evidenced by this Corporate Unit Certificate. The Company covenants and agrees, and the Holder, by its acceptance hereof, likewise covenants and agrees, to be bound by the provisions of this paragraph.

The Holder of this Corporate Unit Certificate, by its acceptance hereof, irrevocably authorizes the Agent to enter into and perform the related Purchase Contracts forming part of the Corporate Units evidenced hereby on its behalf as its attorney-in-fact, expressly withholds any consent to the assumption of the Purchase Contracts by the Company, its trustee in bankruptcy, receiver, liquidator or a person or entity performing similar functions, in the event that the Company becomes the subject of a case under the Bankruptcy Code or subject to other similar Federal or State law providing for reorganization or liquidation, agrees to be bound by the terms and provisions thereof, covenants and agrees to perform its obligations under such Purchase Contracts, consents to the provisions of the Purchase Contract Agreement, authorizes the Agent to enter into and perform the Pledge Agreement on its behalf as its attorney-in-fact, and consents to and agrees to be bound by the Pledge of the Pledged Debt Securities or the Pledged Applicable Ownership Interest in a Treasury Portfolio, as the case may be, underlying this Corporate Unit Certificate pursuant to the Pledge Agreement. The Holder, by its acceptance hereof, further covenants and agrees, that, to the extent and in the manner provided in the Purchase Contract Agreement and the Pledge Agreement, but subject to the terms thereof, payments in respect of the principal of the Pledged Debt Securities, or the portion of the Applicable Ownership Interest (as specified in clauses (1)(i) or 2(i) of the definition of such term) in the appropriate Treasury Portfolio, on the Purchase Contract Settlement Date shall be paid by the Collateral Agent to the Company in satisfaction of such Holder's obligations under such Purchase Contract and such Holder shall acquire no right, title or interest in such payments.

The Holder of this Corporate Unit Certificate, by its acceptance hereof, covenants and agrees to treat itself as the owner, for United States federal, state and local income and franchise tax purposes, of the Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio forming part of the Corporate Units evidenced hereby. The Holder of this Corporate Unit Certificate, by its acceptance hereof, further covenants and agrees to treat the Debt Securities forming part of the Corporate Units evidenced hereby as indebtedness of the Company for United States federal, state and local income and franchise tax purposes.

Subject to certain exceptions, the provisions of the Purchase Contract Agreement may be amended with the consent of the Holders of a majority of the Purchase Contracts. In addition, certain amendments to the Purchase Contract

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Agreement may be made without any consent of the Holders as provided in the Purchase Contract Agreement.

THE PURCHASE CONTRACTS SHALL FOR ALL PURPOSES BE GOVERNED BY, AND

CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

The Company and the Agent and any agent of the Company or the Agent may treat the Person in whose name this Corporate Unit Certificate is registered on the Corporate Unit Register as the owner of the Corporate Units evidenced hereby for the purpose of receiving payments of interest payable quarterly and on the Initial Reset Date, if the remarketing of the Debt Securities on the third Business Day immediately preceding the Initial Reset Date is successful on the Debt Securities receiving payments of Contract Adjustment Payments and any Deferred Contract Adjustment Payments, performance of the Purchase Contracts and for all other purposes whatsoever, whether or not any payments in respect thereof be overdue and notwithstanding any notice to the contrary, and neither the Company, the Agent nor any such agent shall be affected by notice to the contrary.

The Purchase Contracts shall not, prior to the settlement thereof in accordance with the Purchase Contract Agreement, entitle the Holder to any of the rights of a holder of shares of Common Stock.

A copy of the Purchase Contract Agreement is available for inspection at the offices of the Agent during regular business hours of the Agent.

Unless the certificate of authentication hereon has been executed by the Agent by manual signature, this Corporate Unit Certificate shall not be entitled to any benefit under the Pledge Agreement or the Purchase Contract Agreement or be valid or obligatory for any purpose.

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IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed.

TXU Corp.

By:

Name:


Title:

HOLDER SPECIFIED ABOVE (as to
obligations of such Holder under the
Purchase Contracts evidenced hereby)

By: The Bank of New York,
not individually but solely as
Attorney-in-Fact of such Holder

By:

Name:


Title:

Dated:

AGENT'S CERTIFICATE OF AUTHENTICATION

This is one of the Corporate Unit Certificates referred to in the within mentioned Purchase Contract Agreement.

THE BANK OF NEW YORK,
as Purchase Contract Agent and Trustee

By:
Authorized Signatory

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ABBREVIATIONS

The following abbreviations, when used in the inscription on the face of this instrument, shall be construed as though they were written out in full according to applicable laws or regulations:

TEN COM  -                                   as tenants in common

UNIF GIFT MIN ACT -                          ------------Custodian--------------
                                                     (cust)             (minor)

                                             Under Uniform Gifts to Minors Act

                                             -----------------------------------
                                                               (State)

TEN ENT -                                    as tenants by the entireties

JT TEN -                                     as joint tenants with right of
                                             survivorship and not as tenants in
                                             common

Additional abbreviations may also be used though not in the above list.


FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s) and transfer(s) unto

(Please insert Social Security or Taxpayer I.D. or other Identifying Number of Assignee)

(Please Print or Type Name and Address Including Postal Zip Code of Assignee)
the within Corporate Unit Certificate and all rights thereunder, hereby irrevocably constituting and appointing

attorney to transfer said Corporate Unit Certificate on the books of TXU Corp. with full power of substitution in the premises.

Dated:__________________________________________________________________________ Signature

NOTICE: The signature to this assignment must correspond with the name as it appears upon the face of the within Corporate Unit Certificates in every particular, without alteration or enlargement or any change whatsoever.

Signature Guarantee: ______________________________

Signatures must be guaranteed by an "eligible guarantor institution" meeting the requirements of the Registrar, which requirements include membership or participation in the Security Transfer Agent Medallion Program ("STAMP") or such other "signature guarantee program" as may be determined by the Registrar in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended.

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SETTLEMENT INSTRUCTIONS

The undersigned Holder directs that a certificate for shares of Common Stock deliverable upon settlement on or after the Purchase Contract Settlement Date of the Purchase Contracts underlying the number of Corporate Units evidenced by this Corporate Unit Certificate be registered in the name of, and delivered, together with a check in payment for any fractional share, to the undersigned at the address indicated below unless a different name and address have been indicated below. If shares are to be registered in the name of a Person other than the undersigned, the undersigned will pay any transfer tax payable incident thereto.

Dated:   __________________         ____________________________________
                                       Signature
                                       Signature Guarantee: ___________________
                                               (if assigned to another person)

Signatures must be guaranteed by an "eligible guarantor institution" meeting the requirements of the Registrar, which requirements include membership or participation in the Security Transfer Agent Medallion Program ("STAMP") or such other "signature guarantee program" as may be determined by the Registrar in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended.

If shares are to be registered in the name of and REGISTERED HOLDER delivered to a Person other than the Holder, please
(i) print such Person's name and address and (ii) provide a guarantee of your signature:

Please print name and address of Registered Holder:

---------------------------------------    -------------------------------------

              Name                                        Name

---------------------------------------     ------------------------------------

              Address                                     Address

---------------------------------------     ------------------------------------

---------------------------------------     ------------------------------------

---------------------------------------     ------------------------------------

Social Security or other
Taxpayer Identification
Number, if any                               ___________________________________

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ELECTION TO SETTLE EARLY

The undersigned Holder of this Corporate Unit Certificate hereby irrevocably exercises the option to effect Early Settlement in accordance with the terms of the Purchase Contract Agreement with respect to the Purchase Contracts underlying the number of Corporate Units evidenced by this Corporate Unit Certificate specified below. The undersigned Holder directs that a certificate for shares of Common Stock deliverable upon such Early Settlement be registered in the name of, and delivered, together with a check in payment for any fractional share and any Corporate Unit Certificate representing any Corporate Units evidenced hereby as to which Early Settlement of the related Purchase Contracts is not effected, to the undersigned at the address indicated below unless a different name and address have been indicated below. Pledged Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, deliverable upon such Early Settlement will be transferred in accordance with the transfer instructions set forth below. If shares are to be registered in the name of a Person other than the undersigned, the undersigned will pay any transfer tax payable incident thereto.

Dated: _____________________________ ___________________________________

Signature

Signature Guarantee: ________________________________

Signatures must be guaranteed by an "eligible guarantor institution" meeting the requirements of the Registrar, which requirements include membership or participation in the Security Transfer Agent Medallion Program ("STAMP") or such other "signature guarantee program" as may be determined by the Registrar in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended.

Number of Securities evidenced hereby as to which Early Settlement of the related Purchase Contracts is being elected:

If shares of Common Stock or Corporate Unit Certificates are to be registered in the name of and delivered to, and Pledged Debt Securities, or the Treasury Portfolio, REGISTERED HOLDER

as the case may be, are to be transferred to, a Person other than the Holder, please print such Person's

name and address:

                                            Please print name and address of
                                            Registered Holder:

________________________________________________________________________________
         Name                                        Name


________________________________________________________________________________
         Address                                     Address

________________________________________________________________________________



Social Security or other Taxpayer Identification Number, if any ______________________________________

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Transfer Instructions for Pledged Debt Securities, or the Treasury Portfolio, as the case may be, Transferable Upon Early Settlement or a Termination Event:

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[TO BE ATTACHED TO GLOBAL CERTIFICATES]

SCHEDULE OF INCREASES OR DECREASES IN GLOBAL CERTIFICATE

The following increases or decreases in this Global Certificate have been made:

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         Date             Amount of decrease     Amount of increase     Principal Amount of       Signature of
                          in Principal Amount    in Principal Amount        this Global            authorized
                             of the Global          of the Global           Certificate            officer of
                              Certificate            Certificate          following such      Trustee or Securities
                                                                       decrease or increase         Custodian
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EXHIBIT B

FORM OF TREASURY UNIT CERTIFICATE

THIS CERTIFICATE IS A GLOBAL CERTIFICATE WITHIN THE MEANING OF THE PURCHASE CONTRACT AGREEMENT (AS HEREINAFTER DEFINED) AND IS REGISTERED IN THE NAME OF THE CLEARING AGENCY OR A NOMINEE THEREOF. THIS CERTIFICATE MAY NOT BE EXCHANGED IN WHOLE OR IN PART FOR A CERTIFICATE REGISTERED, AND NO TRANSFER OF THIS CERTIFICATE IN WHOLE OR IN PART MAY BE REGISTERED, IN THE NAME OF ANY PERSON OTHER THAN SUCH CLEARING AGENCY OR A NOMINEE THEREOF, EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE PURCHASE CONTRACT AGREEMENT.

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW YORK, NEW YORK) TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO., OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, AND ANY PAYMENT HEREON IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY A PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

No. ____________________ Cusip No. _____________

Number of Treasury Units ___________________

TXU CORP.

Treasury Units
($__ Stated Amount)

This Treasury Unit Certificate certifies that ___________ is the registered Holder of the number of Treasury Units set forth above. Each Treasury Unit represents (a) a stock purchase contract of TXU Corp., a Texas corporation (the "Company") (as modified and supplemented and in effect from time to time, a "Purchase Contract") and (b) a [1/20], or [5]% undivided beneficial ownership interest in a Treasury Security. All capitalized terms used herein without definition herein have the meaning set forth in the Purchase Contract Agreement referred to below.

Pursuant to the Pledge Agreement, the Treasury Securities constituting part of each Treasury Unit evidenced hereby have been pledged to the Collateral Agent, for the benefit of the Company, to secure the obligations of the Holder under the Purchase Contract comprising a portion of such Treasury Unit.

The Pledge Agreement provides that all payments of the principal of any Treasury Securities received by the Collateral Agent shall be paid by the Collateral Agent by wire transfer in same day funds (i) in the case of any principal payments with respect to any Treasury Securities that have been released from the Pledge pursuant to the Pledge Agreement, to the Holders of the applicable Treasury Units to the accounts designated by them in writing for such purpose no later than 2:00 p.m. New York City time, on the Business Day such payment is received by the Collateral Agent (provided that in the event such payment is received by the Collateral Agent on a day that is not a Business Day

B-1

or after 12:30 p.m., New York City time, on a Business Day, then such payment shall be made no later than 10:30 a.m., New York City time, on the next succeeding Business Day), and (ii) in the case of the principal of any Pledged Treasury Securities, to the Company on the Purchase Contract Settlement Date (as defined herein) in accordance with the terms of the Pledge Agreement, in full satisfaction of the respective obligations of the Holders of the Treasury Units of which such Pledged Treasury Securities are a part under the Purchaser Contracts forming a part of such Treasury Units.

Each Purchase Contract evidenced hereby obligates the Holder of this Treasury Unit Certificate to purchase, and the Company, to sell not later than ____________ (the "Purchase Contract Settlement Date"), at a price of $__ in cash (the "Purchase Price"), a number of newly issued shares of Common Stock, without par value, of the Company including, where applicable, the preference stock purchase rights appurtenant thereto ("Common Stock"), equal to the applicable Settlement Rate (as defined below), unless on or prior to the Purchase Contract Settlement Date there shall have occurred a Termination Event or an Early Settlement with respect to the Treasury Units of which such Purchase Contract is a part, all as provided in the Purchase Contract Agreement and more fully described below.

The "Settlement Rate" is equal to (a) if the Applicable Market Value (as defined below) determined with respect to such Purchase Contract Settlement Date is equal to or greater than $_______ (the "Threshold Appreciation Price"), ______ shares of Common Stock per Purchase Contract, (b) if such Applicable Market Value is less than the Threshold Appreciation Price but is greater than $_____, the number of shares of Common Stock per Purchase Contract equal to $__ divided by the Applicable Market Value and (c) if the Applicable Market Value is less than or equal to $_____, ______ shares of Common Stock per Purchase Contract, in each case subject to adjustment as provided in the Purchase Contract Agreement. No fractional shares of Common Stock will be issued upon settlement of Purchase Contracts, as provided in the Purchase Contract Agreement.

The Company shall pay on each Payment Date other than the Initial Reset Date is not also a regular quarterly Payment Date in respect of each Purchase Contract forming part of a Treasury Unit evidenced hereby an amount (the "Contract Adjustment Payments") equal to _____% per annum of the Stated Amount computed on the basis of a 360 day year of twelve 30 day months, subject to deferral at the option of the Company as provided in the Purchase Contract Agreement and more fully described below. Such Contract Adjustment Payments shall be payable to the Person in whose name this Treasury Unit Certificate (or a Predecessor Treasury Unit Certificate or a Predecessor Corporate Unit Certificate) is registered on the Register at the close of business on the Record Date for such Payment Date.

Contract Adjustment Payments will be payable at the Corporate Trust Office or, at the option of the Company, by check mailed to the address of the Person entitled thereto as such address appears on the Treasury Unit Register or by wire transfer to an account appropriately designated in writing by the Person entitled to payment.

Unless the context otherwise requires, each provision of this Security shall be part of the Purchase Contracts evidenced hereby. This Security and each Purchase Contract evidenced hereby is governed by a Purchase Contract Agreement, dated as of ____________ (as may be supplemented from time to time, the "Purchase Contract Agreement") between the Company and The Bank of New York, as purchase contract agent and trustee (including any successor thereunder, herein called the "Agent"), to which Purchase Contract Agreement and supplemental agreements thereto reference is hereby made for a description of the respective rights, limitations of rights, obligations, duties and immunities thereunder of the Agent, the Company and the Holders and of the terms upon which the Treasury Unit Certificates are, and are to be, executed and delivered.

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Each Purchase Contract evidenced hereby, which is settled either through Early Settlement or Cash Settlement, shall obligate the Holder of the related Treasury Unit to purchase at the applicable Purchase Price, and the Company to sell, a number of newly issued shares of Common Stock equal to the applicable Early Settlement Rate or the Settlement Rate, as applicable.

The "Applicable Market Value" means the average of the Closing Price per share of Common Stock on each of the __ consecutive Trading Days ending on the third Trading Day immediately preceding the Purchase Contract Settlement Date. The "Closing Price" of the Common Stock on any date of determination means the closing sale price (or, if no closing price is reported, the last reported sale price) of the Common Stock on the New York Stock Exchange (the "NYSE") on such date or, if the Common Stock is not listed for trading on the NYSE on any such date, as reported in the composite transactions for the principal United States national or regional securities exchange on which the Common Stock is so listed. If the Common Stock is not so listed on a United States national or regional securities exchange, the Closing Price means the last sale price of the Common Stock as reported by the NASDAQ Stock Market, or if the Common Stock is not so reported, the last quoted bid price for the Common Stock in the over-the-counter market as reported by the National Quotation Bureau or similar organization. If such bid price is not available, the Closing Price means market value of the Common Stock on such date as determined by a nationally recognized independent investment banking firm retained by the Company for this purpose. A "Trading Day" means a day on which the Common Stock (A) is not suspended from trading on any national or regional securities exchange or association or over-the-counter market at the close of business and (B) has traded at least once on the national or regional securities exchange or association or over-the-counter market that is the primary market for the trading of the Common Stock.

In accordance with the terms of the Purchase Contract Agreement, the Holder of the Treasury Units evidenced hereby shall pay, on the Purchase Contract Settlement Date, the Purchase Price for the shares of Common Stock purchased pursuant to each Purchase Contract evidenced hereby by effecting a Cash Settlement or an Early Settlement of each such Purchase Contract or by applying a principal amount of the Pledged Treasury Securities underlying such Holder's Treasury Units equal to the Stated Amount of such Purchase Contract to the purchase of Common Stock. A Holder of Treasury Units who does not make such payment in accordance with the Purchase Contract Agreement or who does not notify the Agent of such Holder's intention, on or prior to 5:00 p.m., New York City time, on the fifth Business Day immediately preceding the Purchase Contract Settlement Date, to make an effective Cash Settlement or an Early Settlement, shall have defaulted in its obligations under the related Purchase Contract, and the Collateral Agent shall exercise its rights as a secured creditor for the benefit of the Company under the Purchase Contract Agreement and the Pledge Agreement and shall apply the principal amount at maturity of the related Pledged Treasury Securities held by the Collateral Agent to the Purchase Price of the Common Stock on such Purchase Contract Settlement Date.

The Company shall not be obligated to issue any shares of Common Stock in respect of a Purchase Contract or deliver any certificates therefor to the Holder unless it shall have received payment in full of the Purchase Price for the shares of Common Stock to be purchased thereunder in the manner set forth in the Purchase Contract Agreement.

The Treasury Unit Certificates are issuable only in registered form and only in denominations of a single Treasury Unit and any integral multiple thereof. The transfer of any Treasury Unit Certificate will be registered and Treasury Unit Certificates may be exchanged as provided in the Purchase Contract Agreement. The Treasury Unit Registrar may require a Holder, among other things, to furnish appropriate endorsements and transfer documents permitted by the Purchase Contract Agreement. No service charge shall be required for any such registration of transfer or exchange, but the Company and the Agent may require

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payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith.

A Holder of a Treasury Unit may, at any time on or prior to the fifth Business Day immediately preceding the Purchase Contract Settlement Date, create or recreate a Corporate Unit by depositing with the Collateral Agent a Debt Security or the Applicable Ownership Interest in the applicable Treasury Portfolio, as the case may be, having an aggregate principal amount equal to the aggregate principal amount at maturity of, and in substitution for all, but not less than all, of the Treasury Securities comprising part of the Treasury Unit in accordance with the Purchase Contract Agreement; provided, however, that if the Treasury Portfolio has replaced the Debt Securities as a component of Corporate Units as a result of a successful remarketing of the Debt Securities on the Initial Remarketing Date or a Tax Event Redemption, such Collateral Substitutions may be made at any time on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. Holders of Treasury Units may make such Collateral Substitutions and establish Corporate Units (i) only in integral multiples of __ Treasury Units if Treasury Securities are being replaced by only Debt Securities, or (ii) only in integral multiples of ________ Treasury Units if any Treasury Security is being replaced by the Applicable Ownership Interest in the appropriate Treasury Portfolio. To create __ Corporate Units (if a Tax Event Redemption has not occurred and the Debt Securities remain components of Corporate Units), or ______ Corporate Units (if a Tax Event Redemption has occurred or the Remarketing Treasury Portfolio has replaced the Debt Securities as a result of a successful remarketing of such Debt Securities), the Treasury Unit Holder shall

(a) if a Treasury Portfolio has not replaced the Debt Securities as a component of Corporate Units as a result of a successful remarketing of the Debt Securities on the Initial Remarketing Date or a Tax Event Redemption, on or prior to the fifth Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent $[1,000] in aggregate principal amount of Debt Securities; or

(b) if a Treasury Portfolio has replaced the Debt Securities as a component of Corporate Units as a result of a successful remarketing of the Debt Securities on the Initial Remarketing Date or a Tax Event Redemption, on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent the Applicable Ownership Interest in the Treasury Portfolio for each ______ Corporate Units being created by the Holder, and having an aggregate principal amount of $_________; and

(c) in each case, transfer and surrender the related __ Treasury Units, or in the event the Treasury Portfolio is a component of Corporate Units, ______ Corporate Units, to the Agent accompanied by a notice to the Agent, substantially in the form of Exhibit B to the Pledge Agreement, stating that the Holder has transferred the relevant amount of Debt Securities or the appropriate Applicable Ownership Interest in the Treasury Portfolio, as the case may be, to the Collateral Agent and requesting that the Agent instruct the Collateral Agent to release the Treasury Securities underlying such Treasury Units, whereupon the Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A to the Pledge Agreement.

Upon receipt of the Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, described in clause (a) or (b) above and the instructions described in clause (c) above, in accordance with the terms of the Pledge Agreement, the Collateral Agent will effect the release of the Treasury Securities having a corresponding aggregate principal amount from the Pledge to the Agent free and clear of the Company's security interest therein, and upon receipt thereof the Agent shall promptly:

B-4

(i) cancel the related Treasury Units surrendered and transferred;

(ii) transfer the Treasury Securities that had been components of such Treasury Units to the Holder; and

(iii) authenticate, execute on behalf of such Holder and deliver a Corporate Unit Certificate executed by the Company in accordance with the Purchase Contract Agreement evidencing the same number of Purchase Contracts as were evidenced by the cancelled Treasury Units.

Holders who elect to separate Pledged Treasury Securities from the related Purchase Contracts and to substitute Debt Securities or the Applicable Ownership Interest in the Treasury Portfolio, as the case may be, for such Pledged Treasury Securities shall be responsible for any fees or expenses payable to the Collateral Agent for its services as Collateral Agent in respect of the substitution, and the Company shall not be responsible for any such fees or expenses.

A Holder of a Corporate Unit may create or recreate a Treasury Unit and separate the Debt Security or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as applicable, from the related Purchase Contract in respect of such Corporate Unit by substituting a Treasury Security for the Debt Security, or the Applicable Ownership Interest in the appropriate Treasury Portfolio, that form a part of such Corporate Unit in accordance with the Purchase Contract Agreement.

Subject to the next succeeding paragraph, the Company shall pay, on each Payment Date, except Initial Reset Date, if the Initial Reset Date is not also a quarterly Payment Date, the Contract Adjustment Payments payable in respect of each Purchase Contract to the Person in whose name the Treasury Unit Certificate evidencing such Purchase Contract is registered on the Register at the close of business on the Record Date next preceding such Payment Date. The Contract Adjustment Payments will be payable at the Corporate Trust Office or, at the option of the Company, by check mailed to the address of the Person entitled thereto at such address as it appears on the Treasury Unit Register or by wire transfer to an account appropriately designated in writing by such person.

The Company shall have the right, at any time prior to the Purchase Contract Settlement Date, to defer the payment of any or all of the Contract Adjustment Payments otherwise payable on any Payment Date, but only if the Company shall give the Holders and the Agent written notice of its election to defer such payment (specifying the amount to be deferred) as provided in the Purchase Contract Agreement. Any Contract Adjustment Payments so deferred shall bear additional Contract Adjustment Payments thereon at the rate of _____% per annum (computed on the basis of a 360-day year of twelve 30-day months), compounding on each succeeding Payment Date, until paid in full (such deferred installments of Contract Adjustment Payments, if any, together with the additional Contract Adjustment Payments accrued thereon, are referred to herein as the "Deferred Contract Adjustment Payments"). Deferred Contract Adjustment Payments, if any, shall be due on the next succeeding Payment Date except to the extent that payment is deferred pursuant to the Purchase Contract Agreement. No Contract Adjustment Payments may be deferred to a date that is after the Purchase Contract Settlement Date.

In the event that the Company elects to defer the payment of Contract Adjustment Payments on the Purchase Contracts until the Purchase Contract Settlement Date, the Holder of this Treasury Unit Certificate will receive on the Purchase Contract Settlement Date, in lieu of a cash payment, a number of shares of Common Stock (in addition to the number of shares equal to the Settlement Rate) equal to (x) the aggregate amount of Deferred Contract Adjustment Payments payable to the Holder of this Treasury Unit Certificate divided by (y) the Applicable Market Value.

B-5

In the event the Company exercises its option to defer the payment of Contract Adjustment Payments, then, until the Deferred Contract Adjustment Payments have been paid, the Company shall not declare or pay dividends on, make distributions with respect to, or redeem, purchase or acquire, or make a liquidation payment with respect to, any of its capital stock or make guarantee payments with respect to the foregoing (other than (i) purchases, redemptions or acquisitions of shares of capital stock of the Company in connection with any employment contract, benefit plan or other similar arrangement with or for the benefit of employees, officers, directors or agents or a stock purchase or dividend reinvestment plan, or the satisfaction by the Company of its obligations pursuant to any contract or security outstanding on the date of such event or agent benefit plans or the satisfaction by the Company of its obligations pursuant to any contract or security outstanding on the date of such event requiring the Company to purchase, redeem or acquire its capital stock,
(ii) as a result of a reclassification of the Company's capital stock or the exchange or conversion of one class or series of the Company's capital stock for another class or series of the Company's capital stock, (iii) the purchase of fractional interests in shares of the Company's capital stock pursuant to the conversion or exchange provisions of the Company's capital stock or the security being converted or exchanged, (iv) dividends or distributions in capital stock of the Company (or rights to acquire capital stock) or repurchases, redemptions or acquisitions of capital stock in connection with the issuance or exchange of the Company's capital stock (or securities convertible into or exchangeable for shares of capital stock) or (v) redemptions, exchanges or repurchases of any rights outstanding under a shareholder rights plan or the declaration or payment thereunder of a dividend or distribution of or with respect to rights in the future.

The Purchase Contracts and all obligations and rights of the Company and the Holders thereunder, including, without limitation, the rights of the Holders to receive and the obligation of the Company to pay any Contract Adjustment Payments or any Deferred Contract Adjustment Payments, and the rights and obligations of the Holders to purchase Common Stock shall immediately and automatically terminate, without the necessity of any notice or action by any Holder, the Agent or the Company, if, on or prior to the Purchase Contract Settlement Date, a Termination Event shall have occurred. Upon the occurrence of a Termination Event, the Company shall promptly but in no event later than two Business Days thereafter give written notice to the Agent, the Collateral Agent and to the Holders, at their addresses as they appear in the Treasury Unit Register. Upon and after the occurrence of a Termination Event, the Collateral Agent shall release the Treasury Securities from the Pledge in accordance with the provisions of the Pledge Agreement.

Subject to and upon compliance with the provisions of the Purchase Contract Agreement, a Holder of Treasury Units may settle the related Purchase Contracts in their entirety on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, but only in integral multiples of __ Treasury Units. In order to exercise the right to effect any such early settlement ("Early Settlement") with respect to any Purchase Contracts evidenced by this Treasury Unit Certificate, the Holder of this Treasury Unit Certificate shall deliver this Treasury Unit Certificate to the Agent at the Corporate Trust Office duly endorsed for transfer to the Company or in blank with the form of Election to Settle Early set forth below duly completed and executed and accompanied by payment payable to the Company in immediately available funds payable to the order of the Company in an amount (the "Early Settlement Amount") equal to the sum of (i) $__ times the number of Purchase Contracts being settled, (ii) if such delivery is made with respect to any Purchase Contracts during the period from the close of business on any Record Date next preceding any Payment Date to the opening of business on such Payment Date, an amount equal to the Contract Adjustment Payments payable, if any, on such Payment Date with respect to such Purchase Contracts. Upon Early Settlement of Purchase Contracts by a Holder of the related Securities, the Pledged Treasury Securities underlying such Securities shall be released from the Pledge as provided in the Pledge Agreement and the Holder shall be entitled to receive a number of shares of Common Stock on account of each Purchase Contract forming part of a Treasury Unit as to which Early Settlement is effected equal to the Early Settlement Rate which shall be equal to ______ newly issued shares of Common Stock per Purchase

B-6

Contract (the "Early Settlement Rate"); provided however, that upon the Early Settlement of the Purchase Contracts, (i) the Holder thereof will forfeit the right to receive any Deferred Contract Adjustment Payments, if any, on such Purchase Contracts, (ii) the Holder's right to receive additional Contract Adjustment Payments in respect of such Purchase Contracts will terminate, and
(iii) no adjustment will be made to or for the Holder on account of Deferred Contract Adjustment Payments, or any amount accrued in respect of Contract Adjustment Payments. The Early Settlement Rate shall be adjusted in the same manner and at the same time as the Settlement Rate is adjusted, as provided in the Purchase Contract Agreement.

Upon registration of transfer of this Treasury Unit Certificate, the transferee shall be bound (without the necessity of any other action on the part of such transferee, except as may be required by the Agent pursuant to the Purchase Contract Agreement), under the terms of the Purchase Contract Agreement and the Purchase Contracts evidenced hereby and the transferor shall be released from the obligations under the Purchase Contracts evidenced by this Treasury Unit Certificate. The Company covenants and agrees, and the Holder, by its acceptance hereof, likewise covenants and agrees, to be bound by the provisions of this paragraph.

The Holder of this Treasury Unit Certificate, by its acceptance hereof, irrevocably authorizes the Agent to enter into and perform the related Purchase Contracts forming part of the Treasury Units evidenced hereby on its behalf as its attorney-in-fact, expressly withholds any consent to the assumption (i.e., affirmance) of the Purchase Contracts by the Company or its trustee in bankruptcy, receiver, liquidator or a person or entity performing similar functions, in the event that the Company becomes the subject of a case under the Bankruptcy Code or subject to other similar Federal or State law providing for reorganization or liquidation, agrees to be bound by the terms and provisions thereof, covenants and agrees to perform its obligations under such Purchase Contracts, consents to the provisions of the Purchase Contract Agreement, authorizes the Agent to enter into and perform the Pledge Agreement on its behalf as its attorney-in-fact, and consents to the Pledge of the Treasury Securities underlying this Treasury Unit Certificate pursuant to the Pledge Agreement. The Holder, by its acceptance hereof, further covenants and agrees, that, to the extent and in the manner provided in the Purchase Contract Agreement and the Pledge Agreement, but subject to the terms thereof, payments in respect to the Stated Amount of the Pledged Treasury Securities on the Purchase Contract Settlement Date shall be paid by the Collateral Agent to the Company in satisfaction of such Holder's obligations under such Purchase Contract and such Holder shall acquire no right, title or interest in such payments.

The Holder of this Treasury Unit Certificate, by its acceptance hereof, covenants and agrees to treat itself as the owner, for United States federal, state and local income and franchise tax purposes, of the Treasury Securities forming part of the Treasury Units evidenced hereby.

Subject to certain exceptions, the provisions of the Purchase Contract Agreement may be amended with the consent of the Holders of a majority of the Purchase Contracts. In addition, certain amendments to the Purchase Contract Agreement may be made without any consent of the Holders as provided in the Purchase Contract Agreement.

THE PURCHASE CONTRACTS SHALL FOR ALL PURPOSES BE GOVERNED BY, AND

CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

The Company and the Agent and any agent of the Company or the Agent may treat the Person in whose name this Treasury Unit Certificate is registered on the Treasury Unit Register as the owner of the Treasury Units evidenced hereby for the purpose of receiving payments of interest on the Treasury Securities, receiving payments of Contract Adjustment Payments and any Deferred Contract Adjustment Payments, performance of the Purchase Contracts and for all other purposes whatsoever, whether or not any payments in respect thereof be overdue

B-7

and notwithstanding any notice to the contrary, and neither the Company, the Agent nor any such agent shall be affected by notice to the contrary.

The Purchase Contracts shall not, prior to the settlement thereof, in accordance with the Purchase Agreement, entitle the Holder to any of the rights of a holder of shares of Common Stock.

A copy of the Purchase Contract Agreement is available for inspection at the offices of the Agent during regular business hours of the Agent.

Unless the certificate of authentication hereon has been executed by the Agent by manual signature, this Treasury Unit Certificate shall not be entitled to any benefit under the Pledge Agreement or the Purchase Contract Agreement or be valid or obligatory for any purpose.

B-8

IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed.

TXU Corp.

By:

Name:


Title:

HOLDER SPECIFIED ABOVE (as to
obligations of such Holder under the
Purchase Contracts evidenced hereby)

By: The Bank of New York,
not individually but solely as
Attorney-in-Fact of such Holder

By:

Name:


Title:

Dated:

AGENT'S CERTIFICATE OF AUTHENTICATION

This is one of the Treasury Unit Certificates referred to in the within mentioned Purchase Contract Agreement.

THE BANK OF NEW YORK,
as Purchase Contract Agent and Trustee

By:
Authorized Signatory

B-9

ABBREVIATIONS

The following abbreviations, when used in the inscription on the face of this instrument, shall be construed as though they were written out in full according to applicable laws or regulations:

TEN COM  -                                   as tenants in common

UNIF GIFT MIN ACT -                          ------------Custodian--------------
                                                     (cust)             (minor)

                                             Under Uniform Gifts to Minors Act

                                             -----------------------------------
                                                               (State)

TEN ENT -                                    as tenants by the entireties

JT TEN -                                     as joint tenants with right of
                                             survivorship and not as tenants in
                                             common

Additional abbreviations may also be used though not in the above list.


FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s) and transfer(s) unto

(Please insert Social Security or Taxpayer I.D. or other Identifying Number of Assignee)

(Please Print or Type Name and Address Including Postal Zip Code of Assignee)
the within Treasury Unit Certificate and all rights thereunder, hereby irrevocably constituting and appointing

attorney to transfer said Treasury Unit Certificate on the books of TXU Corp. with full power of substitution in the premises.

Dated:__________________________________________________________________________ Signature

NOTICE: The signature to this assignment must correspond with the name as it appears upon the face of the within Treasury Unit Certificates in every particular, without alteration or enlargement or any change whatsoever.

Signature Guarantee: ______________________________

Signatures must be guaranteed by an "eligible guarantor institution" meeting the requirements of the Registrar, which requirements include membership or participation in the Security Transfer Agent Medallion Program ("STAMP") or such other "signature guarantee program" as may be determined by the Registrar in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended.

B-10

SETTLEMENT INSTRUCTIONS

The undersigned Holder directs that a certificate for shares of Common Stock deliverable upon settlement on or after the Purchase Contract Settlement Date of the Purchase Contracts underlying the number of Treasury Units evidenced by this Treasury Unit Certificate be registered in the name of, and delivered, together with a check in payment for any fractional share, to the undersigned at the address indicated below unless a different name and address have been indicated below. If shares are to be registered in the name of a Person other than the undersigned, the undersigned will pay any transfer tax payable incident thereto.

Dated:__________________________________________________________________________ Signature

Signature Guarantee:

Signatures must be guaranteed by an "eligible guarantor institution" meeting the requirements of the Registrar, which requirements include membership or participation in the Security Transfer Agent Medallion Program ("STAMP") or such other "signature guarantee program" as may be determined by the Registrar in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended.

If shares are to be registered in the name of     REGISTERED HOLDER
and delivered to a Person other than the
Holder, please print such Person's name and
address:
                                                  Please print name and address
                                                  of Registered Holder:


              Name                                        Name

              Address                                     Address


Social Security or other
Taxpayer Identification
Number, if any

___________________________________

B-11

ELECTION TO SETTLE EARLY

The undersigned Holder of this Treasury Unit Certificate hereby irrevocably exercises the option to effect Early Settlement in accordance with the terms of the Purchase Contract Agreement with respect to the Purchase Contracts underlying the number of Treasury Units evidenced by this Treasury Unit Certificate specified below. The undersigned Holder directs that a certificate for shares of Common Stock deliverable upon such Early Settlement be registered in the name of, and delivered, together with a check in payment for any fractional share and any Treasury Unit Certificate representing any Treasury Units evidenced hereby as to which Early Settlement of the related Purchase Contracts is not effected, to the undersigned at the address indicated below unless a different name and address have been indicated below. Pledged Treasury Securities deliverable upon such Early Settlement will be transferred in accordance with the transfer instructions set forth below. If shares are to be registered in the name of a Person other than the undersigned, the undersigned will pay any transfer tax payable incident thereto.

Dated:__________________________________________________________________________ Signature

Signature Guarantee: ________________________________

Signatures must be guaranteed by an "eligible guarantor institution" meeting the requirements of the Registrar, which requirements include membership or participation in the Security Transfer Agent Medallion Program ("STAMP") or such other "signature guarantee program" as may be determined by the Registrar in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended.

B-12

Number of Securities evidenced hereby as to which Early Settlement of the related Purchase Contracts is being elected:

If shares of Common Stock or Treasury      REGISTERED HOLDER
Unit Certificates are to be registered
in the name of and delivered to, and
Pledged Tresury Securities, are to be
transferred to, a Person other than the
Holder, please print such Person's name
and address:                              Please print name and address of
                                          Registered Holder:


         Name                                        Name


         Address                                     Address

Social Security or other Taxpayer Identification Number, if any


Transfer Instructions for Pledged Treasury Securities Transferable Upon Early Settlement or a Termination Event:

B-13

[TO BE ATTACHED TO GLOBAL CERTIFICATES]

SCHEDULE OF INCREASES OR DECREASES IN GLOBAL CERTIFICATE

The following increases or decreases in this Global Certificate have been made:

------------------------ ---------------------- ---------------------- ---------------------- ----------------------
         Date             Amount of decrease     Amount of increase     Principal Amount of       Signature of
                          in Principal Amount    in Principal Amount        this Global            authorized
                             of the Global          of the Global           Certificate            officer of
                              Certificate            Certificate          following such      Trustee or Securities
                                                                       decrease or increase         Custodian
------------------------ ---------------------- ---------------------- ---------------------- ----------------------
------------------------ ---------------------- ---------------------- ---------------------- ----------------------
------------------------ ---------------------- ---------------------- ---------------------- ----------------------
------------------------ ---------------------- ---------------------- ---------------------- ----------------------
------------------------ ---------------------- ---------------------- ---------------------- ----------------------
------------------------ ---------------------- ---------------------- ---------------------- ----------------------
------------------------ ---------------------- ---------------------- ---------------------- ----------------------
------------------------ ---------------------- ---------------------- ---------------------- ----------------------
------------------------ ---------------------- ---------------------- ---------------------- ----------------------
------------------------ ---------------------- ---------------------- ---------------------- ----------------------
------------------------ ---------------------- ---------------------- ---------------------- ----------------------
------------------------ ---------------------- ---------------------- ---------------------- ----------------------
------------------------ ---------------------- ---------------------- ---------------------- ----------------------
------------------------ ---------------------- ---------------------- ---------------------- ----------------------
------------------------ ---------------------- ---------------------- ---------------------- ----------------------
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------------------------ ---------------------- ---------------------- ---------------------- ----------------------
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------------------------ ---------------------- ---------------------- ---------------------- ----------------------
------------------------ ---------------------- ---------------------- ---------------------- ----------------------

B-14

EXHIBIT C

NOTICE TO SETTLE BY SEPARATE CASH

Attention:

Re: Securities of TXU Corp. (the "Company")

The undersigned Holder hereby irrevocably notifies you in accordance with Section 5.4 of the Purchase Contract Agreement, dated as of ______________ among the Company, yourselves, as Purchase Contract Agent and as Attorney-in-Fact for the Holders of the Purchase Contracts, that such Holder has elected to pay to the Collateral Agent, on or prior to 11:00 a.m. New York City time, on the Business Day immediately preceding the Purchase Contract Settlement Date, (in lawful money of the United States by [certified or cashiers check or] wire transfer, in immediately available funds), $_________ as the Purchase Price for the shares of Common Stock issuable to such Holder by the Company under the related Purchase Contract on the Purchase Contract Settlement Date. The undersigned Holder hereby instructs you to notify promptly the Collateral Agent of the undersigned Holders election to make such cash settlement with respect to the Purchase Contracts related to such Holder's [Corporate Units] [Treasury Units].

Dated:__________________________________________________________________________ Signature

Signature Guarantee:________________________

Signatures must be guaranteed by an "eligible guarantor institution" meeting the requirements of the Registrar, which requirements include membership or participation in the Security Transfer Agent Medallion Program ("STAMP") or such other "signature guarantee program" as may be determined by the Registrar in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended.

Please print name and address of Registered Holder:

________________________________________________________________________________
Name                                Social Security or other Taxpayer
                                      Identification Number, if any

Address

__________________________________

__________________________________

C-1

EXHIBIT 4(j)


TXU CORP.

AND


AS COLLATERAL AGENT, CUSTODIAL AGENT
AND SECURITIES INTERMEDIARY

AND

THE BANK OF NEW YORK
AS PURCHASE CONTRACT AGENT

PLEDGE AGREEMENT

DATED AS OF ____________



                                TABLE OF CONTENTS
                                -----------------

                                                                        Page No.
                                                                        --------

ARTICLE I. DEFINITIONS.........................................................2


ARTICLE II. PLEDGE; CONTROL AND PERFECTION.....................................6

     Section 2.1    The Pledge.................................................6
     Section 2.2    Control and Perfection.....................................7

ARTICLE III. DISTRIBUTIONS ON PLEDGED COLLATERAL...............................8

ARTICLE IV. SUBSTITUTION, RELEASE, REPLEDGE AND SETTLEMENT OF
             DEBT SECURITIES..................................................10

     Section 4.1  Substitution for Debt Securities and the Creation of
                   Treasury Units.............................................10
     Section 4.2  Substitution for Treasury Securities and the Creation of
                   Corporate Units............................................11
     Section 4.3  Termination Event...........................................12
     Section 4.4  Cash Settlement.............................................13
     Section 4.5  Early Settlement............................................14
     Section 4.6  Application of Proceeds; Settlement.........................15

ARTICLE V. VOTING RIGHTS -- DEBT SECURITIES...................................16


ARTICLE VI. RIGHTS AND REMEDIES; SUBSTITUTION OF A TREASURY
             PORTFOLIO FOR DEBT SECURITIES....................................17

     Section 6.1  Rights and Remedies of the Collateral Agent.................17
     Section 6.2  Substitution of a Treasury Portfolio for Debt
                   Securities.................................................18
     Section 6.3  Initial Remarketing.........................................19
     Section 6.4  Substitutions...............................................20

ARTICLE VII. REPRESENTATIONS AND WARRANTIES; COVENANTS........................20

     Section 7.1  Representations and Warranties..............................20
     Section 7.2  Covenants...................................................21

ARTICLE VIII. THE COLLATERAL AGENT............................................21

     Section 8.1  Appointment, Powers and Immunities..........................21
     Section 8.2  Instructions of the Company.................................22
     Section 8.3  Reliance by Collateral Agent................................22
     Section 8.4  Rights in Other Capacities..................................23
     Section 8.5  Non-Reliance on Collateral Agent............................23
     Section 8.6  Compensation and Indemnity..................................23
     Section 8.7  Failure to Act..............................................24
     Section 8.8  Resignation of Collateral Agent.............................24
     Section 8.9  Right to Appoint Agent or Advisor...........................25
     Section 8.10 Survival....................................................25
     Section 8.11 Exculpation.................................................25


                                       i

ARTICLE IX. AMENDMENT.........................................................25

     Section 9.1  Amendment Without Consent of Holders........................25
     Section 9.2  Amendment with Consent of Holders...........................26
     Section 9.3  Execution of Amendments.....................................27
     Section 9.4  Effect of Amendments........................................27
     Section 9.5  Reference to Amendments.....................................27

ARTICLE X. MISCELLANEOUS......................................................27

     Section 10.1 No Waiver...................................................27
     Section 10.2 Governing Law...............................................27
     Section 10.3 Notices.....................................................28
     Section 10.4 Successors and Assigns......................................28
     Section 10.5 Counterparts................................................28
     Section 10.6 Severability................................................28
     Section 10.7 Expenses, etc...............................................29
     Section 10.8 Security Interest Absolute..................................29

ii

PLEDGE AGREEMENT

PLEDGE AGREEMENT, dated as of ____________ (this "Agreement"), by and among TXU Corp., a Texas corporation (the "Company"), as pledgee, ___________________, a New York banking corporation, not individually but solely as collateral agent (in such capacity, together with its successors in such capacity, the "Collateral Agent"), as custodial agent (in such capacity, together with its successors in such capacity, the "Custodial Agent") and as a "securities intermediary" as defined in Section 8-102(a)(14) of the Code (as defined herein) (in such capacity, together with its successors in such capacity, the "Securities Intermediary"), and The Bank of New York, a New York banking corporation, not individually but solely as purchase contract agent and as attorney-in-fact of the Holders (as defined in the Purchase Contract Agreement) from time to time of the Securities (as hereinafter defined) (in such capacity, together with its successors in such capacity, the "Purchase Contract Agent") under the Purchase Contract Agreement (as hereinafter defined).

RECITALS

The Company and the Purchase Contract Agent are parties to the Purchase Contract Agreement, dated as of the date hereof (as modified and supplemented and in effect from time to time, the "Purchase Contract Agreement"), pursuant to which there may be issued up to __________ new securities (the "Securities") of the Company. Terms not otherwise defined herein are used herein with the meaning ascribed to them in the Purchase Contract Agreement.

The Securities will initially consist of _________ units (referred to as "Equity Units") with a stated amount, per Equity Unit, equal to $__ (the "Stated Amount"). The Equity Units will initially consist of _________ Corporate Units and _ Treasury Units. Each Corporate Unit will initially be comprised of
(a) a stock purchase contract (as modified and supplemented and in effect from time to time, a "Purchase Contract") under which (i) the Holder will purchase from the Company not later than ____________ ("Purchase Contract Settlement Date"), for $__ in cash, a number of newly issued shares of common stock, without par value, of the Company ("Common Stock") equal to the applicable Settlement Rate and (ii) the Company will pay certain Contract Adjustment Payments to the Holders as provided in the Purchase Contract Agreement, and (b) either (A) prior to the Purchase Contract Settlement Date so long as no Tax Event Redemption has occurred, (i) beneficial ownership of a Series _ Senior Note due ____________ of the Company (the "Debt Securities"), having a principal amount of $__, or (ii) following a successful remarketing of the Debt Securities on the Initial Remarketing Date, the Applicable Ownership Interest in the Remarketing Treasury Portfolio, or (B) upon the occurrence of a Tax Event Redemption prior to the Purchase Contract Settlement Date, the Applicable Ownership Interest in the Tax Event Treasury Portfolio.

Each Treasury Unit will initially be comprised of (a) a Purchase Contract under which (i) the Holder will purchase from the Company not later than the Purchase Contract Settlement Date, for $__ in cash, a number of newly issued shares of Common Stock equal to the applicable Settlement Rate and (ii) the Company will pay certain Contract Adjustment Payments to the Holders as provided in the Purchase Contract Agreement, and (b) a [1/20], or [5]% undivided beneficial ownership interest in a zero-coupon U.S. Treasury security having a


principal amount at maturity equal to $[1,000] and maturing on ____________ (CUSIP No. _________) ("Treasury Security").

[Pursuant to the terms of the Purchase Contract Agreement, the Company may issue up to _________ additional Corporate Units and, if the Company issues such additional Corporate Units, the related Debt Securities will be pledged hereunder.]

Pursuant to the terms of the Indenture (as defined below), the Company will issue the Debt Securities in an aggregate principal amount equal to or greater than the aggregate Stated Amount of all Corporate Units.

Pursuant to the terms of the Purchase Contract Agreement and the Purchase Contracts, the Holders, from time to time, of the Securities have irrevocably authorized the Purchase Contract Agent, as attorney-in-fact of such Holders, among other things, to execute and deliver this Agreement on behalf of and in the name of such Holders and to grant the pledge provided hereby of the Debt Securities, any Applicable Ownership Interest in a Treasury Portfolio and any Treasury Securities to secure each Holder's obligations under the related Purchase Contract, as provided herein and subject to the terms hereof. Upon such pledge, the Debt Securities will be beneficially owned by the Holders but will be owned of record by the Purchase Contract Agent subject to the Pledge hereunder, and the Treasury Securities (and the Applicable Ownership Interest in the appropriate Treasury Portfolio) will be beneficially owned by the Holders but will be held in book-entry form by the Securities Intermediary subject to the Pledge hereunder.

Accordingly, the Company, the Collateral Agent, the Securities Intermediary, the Custodial Agent and the Purchase Contract Agent, on its own behalf and as attorney-in-fact of the Holders from time to time of the Securities, agree as follows:

ARTICLE I.

DEFINITIONS

For all purposes of this Agreement, except as otherwise expressly provided or unless the context otherwise requires:

(a) the terms defined in this Article have the meanings assigned to them in this Article and include the plural as well as the singular;

(b) the words "herein," "hereof" and "hereunder" and other words of similar import refer to this Agreement as a whole and not to any particular Article, Section or other subdivision;

(c) terms not otherwise defined herein are used herein with the meaning ascribed to them in the Purchase Contract Agreement.

"AGREEMENT" means this instrument as originally executed or as it may from time to time be supplemented or amended by one or more agreements supplemental hereto entered into pursuant to the applicable provisions hereof.

2

"BANKRUPTCY CODE" means title 11 of the United States Code, or any other law of the United States that from time to time provides a uniform system of bankruptcy laws.

"BUSINESS DAY" means any day other than a Saturday, a Sunday or any other day on which banking institutions in The City of New York (in the State of New York) are permitted or required by any applicable law to close.

"CASH" means any coin or currency of the United States as at the time shall be legal tender for payment of public and private debts.

"CODE" has the meaning specified in Section 6.1 hereof.

"COLLATERAL" has the meaning specified in Section 2.1 hereof.

"COLLATERAL ACCOUNT" means the securities account (number __________) maintained at ___________________ in the name "The Bank of New York, as Purchase Contract Agent on behalf of the holders of Securities subject to the security interest of ___________________ as Collateral Agent under the Pledge Agreement, for the benefit of TXU Corp., as pledgee" and any successor account.

"COLLATERAL AGENT" has the meaning specified in the first paragraph of this Agreement.

"COMMON STOCK" has the meaning specified in the Recitals.

"COMPANY" means the Person named as the "Company" in the first paragraph of this Agreement until a successor shall have become such, and thereafter "Company" shall mean such successor.

"CUSTODIAL AGENT" has the meaning specified in the first paragraph of this Agreement.

"DEBT SECURITY" AND "DEBT SECURITIES" have the respective meanings specified in the Recitals.

"EQUITY UNITS" has the meaning specified in the Recitals.

"INDENTURE" means the Indenture (For Unsecured Debt Securities Series _) dated as of ____________ between the Company and the Indenture Trustee pursuant to which the Debt Securities are to be issued, as originally executed and delivered and as it may from time to time be supplemented or amended by one or more indentures supplemental thereto entered into pursuant to the applicable provisions thereof and shall include the terms of a particular series of securities established as contemplated by Section 301 thereof.

"INDENTURE TRUSTEE" means The Bank of New York, as trustee under the Indenture until a successor is appointed thereunder, and thereafter means such successor trustee.

3

"INITIAL RESET DATE" means any Business Day, as selected by the Company in its sole discretion, from _________________ to _________________.

"INTERMEDIARY" means any entity that in the ordinary course of its business maintains securities accounts for others and is acting in that capacity.

"PERMITTED INVESTMENTS" means any one of the following which shall mature not later than the next succeeding Business Day [(i) any evidence of indebtedness with an original maturity of 365 days or less issued, or directly and fully guaranteed or insured, by the United States of America or any agency or instrumentality thereof (provided that the full faith and credit of the United States of America is pledged in support thereof or such indebtedness constitutes a general obligation of it); (ii) deposits, certificates of deposit or acceptances with an original maturity of 365 days or less of any institution which is a member of the Federal Reserve System having combined capital and surplus and undivided profits of not less than U.S. $200 million at the time of deposit; (iii) investments with an original maturity of 365 days or less of any Person that is fully and unconditionally guaranteed by a bank referred to in clause (ii); (iv) investments in commercial paper, other than commercial paper issued by the Company or its affiliates, of any corporation incorporated under the laws of the United States or any State thereof, which commercial paper has a rating at the time of purchase at least equal to "A-1" by Standard & Poor's Ratings Service, a Division of McGraw-Hill Companies, Inc. ("S&P") or at least equal to "P-1" by Moody's Investors Service, Inc. ("Moody's"); and (v) investments in money market funds registered under the Investment Company Act of 1940, as amended, rated in the highest applicable rating category by S&P or Moody's].

"PERSON" means any individual, corporation, limited liability company, partnership, joint venture, association, joint-stock company, trust, unincorporated organization or government or any agency or political subdivision thereof.

"PLEDGE" has the meaning specified in Section 2.1 hereof.

"PLEDGED APPLICABLE OWNERSHIP INTEREST IN A TREASURY PORTFOLIO" has

the meaning specified in Section 2.1 hereof.

"PLEDGED DEBT SECURITIES" has the meaning specified in Section 2.1 hereof.

"PLEDGED TREASURY SECURITIES" has the meaning specified in Section 2.1 hereof.

"PROCEEDS" means all interest, dividends, cash, instruments, securities, financial assets (as defined in Section 8-102(a)(9) of the Code) and other property from time to time received, receivable or otherwise distributed upon the sale, exchange, collection or disposition of the Collateral or any proceeds thereof.

"PURCHASE CONTRACT" has the meaning specified in the Recitals.

"PURCHASE CONTRACT AGENT" has the meaning specified in the first paragraph of this Agreement.

"PURCHASE CONTRACT AGREEMENT" has the meaning specified in the Recitals.

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"SECURITIES" has the meaning specified in the Recitals.

"SECURITIES INTERMEDIARY" has the meaning specified in the first paragraph of this Agreement.

"SECURITY ENTITLEMENT" has the meaning set forth in
Section 8-102(a)(17) of the Code.

"SEPARATE DEBT SECURITIES" means any Debt Securities that are not Pledged Debt Securities.

"STATED AMOUNT" has the meaning specified in the Recitals.

"TRADES" means the Treasury/Reserve Automated Debt Entry System maintained by the Federal Reserve Bank of New York pursuant to the TRADES Regulations.

"TRADES REGULATIONS" means the regulations of the United States Department of the Treasury, published at 31 C.F.R. Part 357, as amended from time to time. Unless otherwise defined herein, all terms defined in the TRADES Regulations are used herein as therein defined.

"TRANSFER" means, with respect to the Collateral and in accordance with the instructions of the Collateral Agent, the Purchase Contract Agent or the Holder, as applicable:

(i) except as otherwise provided in Section 2.1 hereof, in the case of Collateral consisting of securities which cannot be delivered by book-entry or which the parties agree are to be delivered in physical form, delivery in appropriate physical form to the recipient accompanied by any duly executed instruments of transfer, assignments in blank, transfer tax stamps and any other documents necessary to constitute a legally valid transfer to the recipient; and

(ii) in the case of Collateral consisting of securities maintained in book-entry form, by causing a "securities intermediary" (as defined in Section 8-102(a)(14) of the Code) to (i) credit a Security Entitlement with respect to such securities to a "securities account" (as defined in Section 8-501(a) of the Code) maintained by or on behalf of the recipient and (ii) to issue a confirmation to the recipient with respect to such credit. In the case of Collateral to be delivered to the Collateral Agent, the securities intermediary shall be the Securities Intermediary and the securities account shall be the Collateral Account.

"TREASURY SECURITY" has the meaning specified in the Recitals.

"VALUE" with respect to any item of Collateral on any date means, as to (i) Debt Securities, the aggregate principal amount thereof, (ii) Cash, the face amount thereof and (iii) Treasury Securities, the aggregate principal amount thereof at maturity; provided however, that in the case of the remarketing of the Debt Securities on the third Business Day immediately preceding the Initial Reset Date, Value means the Remarketing Treasury Portfolio Purchase Price.

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ARTICLE II.

PLEDGE; CONTROL AND PERFECTION

SECTION 2.1 THE PLEDGE.

The Holders from time to time acting through the Purchase Contract Agent, as their attorney-in-fact, and the Purchase Contract Agent, as such attorney-in-fact, hereby pledge and grant to the Collateral Agent, for the benefit of the Company, as collateral security for the performance when due by such Holders of their respective obligations under the related Purchase Contracts, a security interest in all of the right, title and interest of such Holders and the Purchase Contract Agent (a) in the Debt Securities and Treasury Securities constituting a part of the Securities and any Treasury Securities delivered in exchange for any Debt Securities, and any Debt Securities delivered in exchange for any Treasury Securities, in accordance with Article IV hereof, in each case that have been Transferred to or received by the Collateral Agent and not released by the Collateral Agent to such Holders or the Purchase Contract Agent under the provisions of this Agreement; (b) in payments made by Holders pursuant to Section 4.4 hereof; (c) in the Collateral Account and all securities, financial assets, Cash and other property credited thereto and all Security Entitlements related thereto; (d) in the Applicable Ownership Interest in the Treasury Portfolio purchased on behalf of the Holders of Corporate Units by the Collateral Agent upon the occurrence of (i) a Tax Event Redemption as provided in Section 6.2 hereof or (ii) a successful remarketing of the Debt Securities and (e) all Proceeds of the foregoing (all of the foregoing, collectively, the "Collateral"). Prior to or concurrently with the execution and delivery of this Agreement, the Purchase Contract Agent, on behalf of the initial Holders of the Securities, shall cause the Debt Securities comprising a part of the Corporate Units to be Transferred to the Collateral Agent for the benefit of the Company. Such Debt Securities shall be Transferred by physically delivering such Debt Securities to the Collateral Agent endorsed in blank. Treasury Securities and any Treasury Portfolio, as applicable, shall be Transferred to the Collateral Account maintained by the Collateral Agent at the Securities Intermediary by book-entry transfer to the Collateral Account in accordance with the TRADES Regulations and other applicable law and by the notation by the Securities Intermediary on its books that a Security Entitlement with respect to such Treasury Securities or Treasury Portfolio has been credited to the Collateral Account. For purposes of perfecting the Pledge under applicable law, including, to the extent applicable, the TRADES Regulations or the Uniform Commercial Code as adopted and in effect in any applicable jurisdiction, the Collateral Agent shall be the agent of the Company as provided herein. The pledge provided in this Section 2.1 is herein referred to as the "Pledge" and the Debt Securities, Treasury Securities or the Applicable Ownership Interest in any Treasury Portfolio subject to the Pledge, excluding any Debt Securities or Treasury Securities or interest in any Treasury Portfolio released from the Pledge as provided in Article IV hereof, are hereinafter referred to as "Pledged Debt Securities", the "Pledged Treasury Securities," or "Pledged Applicable Ownership Interest in a Treasury Portfolio," respectively, and collectively, the "Pledged Securities." Subject to the Pledge and the provisions of Section 2.2 hereof, the Holders from time to time shall have full beneficial ownership of the Collateral. The Collateral Agent shall have the right to have the Debt Securities or any other Securities held in physical form reregistered in its name or in the name of its agent or the Securities Intermediary and credited to the Collateral Account.

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Except as may be required in order to release Debt Securities (or, if
(i) a Tax Event Redemption or (ii) a successful remarking of the Debt Securities, as the case may be, has occurred, the Applicable Ownership Interest in the appropriate Treasury Portfolio) or Treasury Securities in connection with a Holder's election to convert its investment from Corporate Units to Treasury Units, or from Treasury Units to Corporate Units, as the case may be, or except as otherwise required to release Pledged Securities as specified herein, neither the Collateral Agent nor the Securities Intermediary shall relinquish physical possession of any certificate evidencing Debt Securities (or, if (i) a Tax Event Redemption or (ii) a successful remarking of the Debt Securities, as the case may be, has occurred, the Applicable Ownership Interest in the appropriate Treasury Portfolio) or Treasury Securities prior to the termination of this Agreement. If it becomes necessary for the Collateral Agent to relinquish physical possession of a certificate in order to release a portion of the Debt Securities evidenced thereby from the Pledge, the Collateral Agent shall use its best efforts to obtain physical possession of a replacement certificate evidencing any Debt Securities remaining subject to the Pledge hereunder registered to it or endorsed in blank within ten days of the date it relinquished possession. The Collateral Agent shall promptly notify the Company of its failure to obtain possession of any such replacement certificate as required hereby.

SECTION 2.2 CONTROL AND PERFECTION.

(a) In connection with the Pledge granted in Section 2.1, and subject to the other provisions of this Agreement, the Holders from time to time acting through the Purchase Contract Agent, as their attorney-in-fact, hereby authorize and direct the Securities Intermediary (without the necessity of obtaining the further consent of the Purchase Contract Agent or any of the Holders), and the Securities Intermediary agrees, to comply with and follow any instructions and "entitlement orders" (as defined in Section 8-102(a)(8) of the Code) that the Collateral Agent on behalf of the Company may give in writing with respect to the Collateral Account, the Collateral credited thereto and any Security Entitlements with respect to any thereof. Such instructions and entitlement orders may, without limitation, direct the Securities Intermediary to transfer, redeem, sell, liquidate, assign, deliver or otherwise dispose of the Debt Securities, the Treasury Securities, any Treasury Portfolio and any Security Entitlements with respect thereto and to pay and deliver any income, proceeds or other funds derived therefrom to the Company. The Purchase Contract Agent and the Holders from time to time, acting through the Purchase Contract Agent, each hereby further authorize and direct the Collateral Agent, as agent of the Company, to itself issue instructions and entitlement orders, and to otherwise take action, with respect to the Collateral Account, the Collateral credited thereto and any Security Entitlements with respect thereto, pursuant to the terms and provisions hereof, all without the necessity of obtaining the further consent of the Purchase Contract Agent or any of the Holders. The Collateral Agent shall be the agent of the Company and shall act as directed in writing by the Company. Without limiting the generality of the foregoing, the Collateral Agent shall issue entitlement orders to the Securities Intermediary when and as directed by the Company.

(b) The Securities Intermediary hereby confirms and agrees that:
(i) all securities or other property underlying any financial assets credited to the Collateral Account shall be registered in the name of the Securities Intermediary, indorsed to the Securities Intermediary or in blank or credited to another collateral account maintained in the name of the Securities Intermediary and in no case will any financial asset credited to the Collateral Account be

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registered in the name of the Purchase Contract Agent, the Company or any Holder, payable to the order of, or specially indorsed to, the Purchase Contract Agent, the Collateral Agent, the Company or any Holder except to the extent the foregoing have been specially indorsed to the Securities Intermediary or in blank; (ii) all property delivered to the Securities Intermediary pursuant to this Pledge Agreement (including, without limitation, any Debt Securities, the Applicable Ownership Interest in any Treasury Portfolio or any Treasury Securities) will be promptly credited to the Collateral Account; (iii) the Collateral Account is an account to which financial assets are or may be credited, and the Securities Intermediary shall, subject to the terms of this Agreement, treat the Purchase Contract Agent as the "entitlement holder" (as defined in Section 8-102(a)(7) of the Code) with respect to the Collateral Account; (iv) the Securities Intermediary has not entered into, and until the termination of this Agreement will not enter into, any agreement with any other Person relating to the Collateral Account and/or any financial assets credited thereto pursuant to which it has agreed to comply with "entitlement orders" (as defined in Section 8-102(a)(8) of the Code) of such other Person; and (v) the Securities Intermediary has not entered into, and until the termination of this Agreement will not enter into, any agreement with the Company, the Collateral Agent, the Purchase Contract Agent or the Holders of the Securities purporting to limit or condition the obligation of the Securities Intermediary to comply with entitlement orders as set forth in this Section 2.2 hereof.

(c) The Securities Intermediary hereby agrees that each item of property (whether investment property, financial asset, security, instrument or cash) credited to the Collateral Account shall be treated as a "financial asset" within the meaning of Section 8-102(a)(9) of the Code.

(d) In the event of any conflict between this Agreement (or any portion hereof) and any other agreement now existing or hereafter entered into, the terms of this Agreement shall prevail.

(e) The Purchase Contract Agent hereby irrevocably constitutes and appoints the Collateral Agent and the Company, and each of them severally, with full power of substitution, as the Purchase Contract Agent's attorney-in-fact to take on behalf of, and in the name, place and stead of the Purchase Contract Agent and the Holders, any action necessary or desirable to perfect and to keep perfected the security interest in the Collateral referred to in Section 2.1. The grant of such power-of-attorney shall not be deemed to require of the Collateral Agent any specific duties or obligations not otherwise assumed by the Collateral Agent hereunder.

ARTICLE III.

DISTRIBUTIONS ON PLEDGED COLLATERAL

So long as the Purchase Contract Agent is the registered owner of the Pledged Debt Securities, it shall receive all payments thereon. If the Pledged Debt Securities are reregistered, such that the Collateral Agent becomes the registered holder, all payments of principal or interest on such Pledged Debt Securities, together with any payments of principal or interest or cash distributions in respect of any other Pledged Securities received by the

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Collateral Agent that are properly payable hereunder shall be paid by the Collateral Agent by wire transfer in same day funds:

(a) in the case of (A) payment of interest with respect to the Pledged Debt Securities or cash distributions on the appropriate Pledged Applicable Ownership Interest in a Treasury Portfolio (as specified in clauses (1)(ii), (1)(iii) or (2)(ii) of the definition of the term Applicable Ownership Interest), as the case may be, and (B) any payments of principal with respect to any Debt Securities or the appropriate Applicable Ownership Interest (as specified in clauses (1)(i) or (2)(i) of the definition of such term) in a Treasury Portfolio, as the case may be, that have been released from the Pledge pursuant to Section 4.3 hereof, to the Purchase Contract Agent, for the benefit of the relevant Holders of Corporate Units, to the account designated by the Purchase Contract Agent for such purpose, no later than 2:00 p.m., New York City time, on the Business Day such payment is received by the Collateral Agent (provided that in the event such payment is received by the Collateral Agent on a day that is not a Business Day or after 12:30 p.m., New York City time, on a Business Day, then such payment shall be made no later than 10:30 a.m., New York City time, on the next succeeding Business Day);

(b) in the case of any principal payments with respect to any Treasury Securities that have been released from the Pledge pursuant to
Section 4.3 hereof, to the Holders of the Treasury Units to the accounts designated by them in writing to the Collateral Agent for such purpose no later than 2:00 p.m., New York City time, on the Business Day such payment is received by the Collateral Agent (provided that in the event such payment is received by the Collateral Agent on a day that is not a Business Day or after 12:30 p.m., New York City time, on a Business Day, then such payment shall be made no later than 10:30 a.m., New York City time, on the next succeeding Business Day); and

(c) in the case of payments of the principal of any Pledged Debt Securities or on the appropriate Pledged Applicable Ownership Interest in a Treasury Portfolio (as specified in clauses (1)(i) or (2)(i) of the definition of the term Applicable Ownership Interest), as the case may be, or the principal of any Pledged Treasury Securities, to the Company on the Purchase Contract Settlement Date in accordance with the procedure set forth in Section 4.6(a) or 4.6(b) hereof, in full satisfaction of the respective obligations of the Holders under the related Purchase Contracts.

All payments received by the Purchase Contract Agent as provided herein shall be applied by the Purchase Contract Agent pursuant to the provisions of the Purchase Contract Agreement. If, notwithstanding the foregoing, the Purchase Contract Agent or a Holder of Corporate Units shall receive any payments of principal on account of any Debt Security or, if applicable, the Applicable Ownership Interest (as specified in clauses (1)(i) or (2)(i) of the definition of such term) in the appropriate Treasury Portfolio that, at the time of such payment, is a Pledged Debt Security or the Pledged Applicable Ownership Interest in a Treasury Portfolio, as the case may be, or the Purchase Contract Agent or a Holder of Treasury Units shall receive any payments of principal on account of any Treasury Securities that, at the time of such payment, are Pledged Treasury Securities, the Purchase Contract Agent or such Holder, as the case may be, shall transfer the Proceeds of such payment of principal on such Pledged Debt Security, Pledged Applicable Ownership Interest in a Treasury Portfolio or Pledged Treasury Securities, as the case may be, to the Collateral Agent and the Collateral Agent shall hold such Proceeds for the benefit of the Company as

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Collateral for the performance when due by such Holder of its obligations under the related Purchase Contracts.

ARTICLE IV.

SUBSTITUTION, RELEASE, REPLEDGE AND SETTLEMENT OF DEBT SECURITIES

SECTION 4.1 SUBSTITUTION FOR DEBT SECURITIES AND THE CREATION OF TREASURY UNITS.

A Holder of a Corporate Unit may create or recreate a Treasury Unit and separate the Debt Securities or the appropriate Applicable Ownership Interest in a Treasury Portfolio, as applicable, from the related Purchase Contract in respect of such Corporate Unit by substituting Treasury Securities for all, but not less than all, of the Debt Securities or Applicable Ownership Interest in the appropriate Treasury Portfolio that form a part of such Corporate Unit in accordance with this Section 4.1 and 3.13 of the Purchase Contract Agreement; provided, however, that if a Treasury Portfolio has not replaced the Debt Securities as a component of Corporate Units as a result of a successful remarketing or a Tax Event Redemption, such Collateral Substitutions may be made only on or prior to the fifth Business Day immediately preceding the Purchase Contract Settlement Date; if a Treasury Portfolio has replaced Debt Securities as a component of Corporate Units as a result of a successful remarketing of the Debt Securities or a Tax Event Redemption, such Collateral Substitutions may be made only on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. Holders may make Collateral Substitutions and establish Treasury Units (i) only in integral multiples of __ Corporate Units if only Debt Securities are being substituted by Treasury Securities, or (ii) only in integral multiples of ______ Corporate Units if the appropriate Applicable Ownership Interests in the Treasury Portfolio are being substituted for Treasury Securities. For example, to create __ Treasury Units (if a Tax Event Redemption has not occurred and Debt Securities remain components of Corporate Units), or ______ Treasury Units (if a Tax Event Redemption has occurred or a Remarketing Treasury Portfolio has replaced Debt Securities as components of Corporate Units as a result of a successful remarketing of the Debt Securities), the Corporate Unit Holder shall

(a) if a Treasury Portfolio has not replaced any Debt Securities as a component of Corporate Units as a result of a successful remarketing or a Tax Event Redemption, on or prior to the fifth Business Day preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent a Treasury Security having a principal amount at maturity of $[1,000]; or

(b) if a Treasury Portfolio has replaced the Debt Securities as a component of Corporate Units as a result of a successful remarketing of the Debt Securities or a Tax Event Redemption, on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent Treasury Securities having an aggregate principal amount at maturity of $_________; and

(c) in each case, transfer and surrender the related __ Corporate Units, or, in the event a Treasury Portfolio is a component of Corporate Units,

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______ Corporate Units, to the Purchase Contract Agent accompanied by a notice to the Purchase Contract Agent, substantially in the form of Exhibit B hereto, stating that the Holder has transferred the relevant amount of Treasury Securities to the Collateral Agent and requesting that the Purchase Contract Agent instruct the Collateral Agent to release the applicable Debt Securities or the appropriate Applicable Ownership Interest in the Treasury Portfolio, as the case may be, underlying such Corporate Units, whereupon the Purchase Contract Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A hereto.

Upon receipt of the Treasury Securities described in clause (a) or (b) above and the instructions described in clause (c) above from the Purchase Contract Agent, the Collateral Agent shall release the Pledged Debt Securities or the appropriate Pledged Applicable Ownership Interest in a Treasury Portfolio, as the case may be, and shall promptly Transfer such Pledged Debt Securities or the appropriate Pledged Applicable Ownership Interest in a Treasury Portfolio, as the case may be, free and clear of the lien, pledge or security interest created hereby, to the Purchase Contract Agent.

SECTION 4.2 SUBSTITUTION FOR TREASURY SECURITIES AND THE CREATION OF CORPORATE UNITS.

A Holder of a Treasury Unit may create or recreate Corporate Units by depositing with the Collateral Agent Debt Securities or the Applicable Ownership Interest in the appropriate Treasury Portfolio, as the case may be, having an aggregate principal amount equal to the aggregate principal amount at maturity of, and in substitution for all, but not less than all, of the Treasury Securities comprising part of the Treasury Unit in accordance with this
Section 4.2 and 3.14 of the Purchase Contract Agreement; provided, however, that if a Treasury Portfolio has not replaced the Debt Securities as a component of Corporate Units as a result of a successful remarketing or a Tax Event Redemption, such Collateral Substitutions may be made only on or prior to the fifth Business Day immediately preceding the Purchase Contract Settlement Date; and if a Treasury Portfolio has replaced the Debt Securities as a component of Corporate Units as a result of a successful remarketing of the Debt Securities or a Tax Event Redemption, such Collateral Substitutions may be made only on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date. Holders of Treasury Units may make such Collateral Substitutions and establish Corporate Units (i) only in integral multiples of __ Treasury Units if Treasury Securities are being replaced by Debt Securities, or
(ii) only in integral multiples of ______ Treasury Units if any Treasury Security is being replaced by the Applicable Ownership Interest in the Treasury Portfolio. To create __ Corporate Units (if a Tax Event Redemption has not occurred and the Debt Securities remain components of Corporate Units), or ______ Corporate Units (if a Tax Event Redemption has occurred or a Remarketing Treasury Portfolio has replaced the Debt Securities as a result of a successful remarketing of the Debt Securities), the Treasury Unit Holder shall

(a) if a Treasury Portfolio has not replaced the Debt Securities as a component of Corporate Units as a result of a successful remarketing or a Tax Event Redemption on or prior to the fifth Business Day preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent $[1,000] in aggregate principal amount of Debt Securities; or

(b) if a Treasury Portfolio has replaced the Debt Securities as a component of Corporate Units as a result of a successful remarketing of the Debt

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Securities or a Tax Event Redemption on or prior to the second Business Day immediately preceding the Purchase Contract Settlement Date, deposit with the Collateral Agent the Applicable Ownership Interest in the appropriate Treasury Portfolio having an aggregate principal amount at maturity of $_________; or

(c) in each case, transfer and surrender the related __ Treasury Units, or in the event the Treasury Portfolio is a component of Corporate Units, ______ Treasury Units, to the Purchase Contract Agent accompanied by a notice to the Purchase Contract Agent, substantially in the form of Exhibit B hereto, stating that the Holder has transferred the relevant amount of Debt Securities or the appropriate Applicable Ownership Interest in the Treasury Portfolio, as the case may be, to the Collateral Agent and requesting that the Purchase Contract Agent instruct the Collateral Agent to release the Pledged Treasury Securities underlying such Treasury Units, whereupon the Purchase Contract Agent shall promptly give such instruction to the Collateral Agent, substantially in the form of Exhibit A hereto.

Upon receipt of the Debt Securities or the appropriate Applicable Ownership Interest in the applicable Treasury Portfolio, as the case may be, described in clause (a) or (b) above and the instructions described in clause (c) above, from the Purchase Contract Agent, the Collateral Agent shall release the related Pledged Treasury Securities and shall promptly Transfer such Pledged Treasury Securities, free and clear of the lien, pledge or security interest created hereby, to the Purchase Contract Agent.

SECTION 4.3 TERMINATION EVENT.

Upon receipt by the Collateral Agent of written notice from the Company or the Purchase Contract Agent that there has occurred a Termination Event, the Collateral Agent shall release all Collateral from the Pledge and shall promptly Transfer any Pledged Debt Securities (or, if (i) a Tax Event Redemption or (ii) a successful remarketing of the Debt Securities, as the case may be, has occurred, the Pledged Applicable Ownership Interest in a Treasury Portfolio) and Pledged Treasury Securities to the Purchase Contract Agent for the benefit of the Holders of the Corporate Units and the Treasury Units, respectively, free and clear of any lien, pledge or security interest or other interest created hereby.

If such Termination Event shall result from the Company's becoming a debtor under the Bankruptcy Code, and if the Collateral Agent shall for any reason fail promptly to effectuate the release and Transfer of all Pledged Debt Securities, the Pledged Applicable Ownership Interest in a Treasury Portfolio or the Pledged Treasury Securities, as the case may be, as provided by this Section 4.3, any Holder may, and the Purchase Contract Agent shall, upon receipt from the Holders of reasonable security or indemnity against the costs, expenses and liabilities which might be incurred by the Purchase Contract Agent in compliance with this paragraph, (i) use its reasonable best efforts to obtain an opinion of a nationally recognized law firm reasonably acceptable to the Collateral Agent to the effect that, as a result of the Company being the debtor in such a bankruptcy case, the Collateral Agent will not be prohibited from releasing or Transferring the Collateral as provided in this Section 4.3, and shall deliver such opinion to the Collateral Agent within ten days after the occurrence of such Termination Event, and if (y) any such Holder or the Purchase Contract Agent shall be unable to obtain such opinion within ten days after the occurrence of such Termination Event or (z) the Collateral Agent shall continue,

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after delivery of such opinion, to refuse to effectuate the release and Transfer of all Pledged Debt Securities, the Pledged Applicable Ownership Interest in a Treasury Portfolio or the Pledged Treasury Securities, as the case may be, as provided in this Section 4.3, then any Holder may, and the Purchase Contract Agent shall, within 15 days after the occurrence of such Termination Event commence an action or proceeding in the court with jurisdiction of the Company's case under the Bankruptcy Code seeking an order requiring the Collateral Agent to effectuate the release and transfer of all Pledged Debt Securities, the Pledged Applicable Ownership Interest in a Treasury Portfolio or the Pledged Treasury Securities, as the case may be, as provided by this Section 4.3 or (ii) commence an action or proceeding in the court with jurisdiction of the Company's case under the Bankruptcy Code like that described in subsection (i)(z) hereof within ten days after the occurrence of such Termination Event.

SECTION 4.4 CASH SETTLEMENT.

(a) Upon receipt by the Collateral Agent of (i) a notice from the Purchase Contract Agent that a Holder of a Corporate Unit or Treasury Unit has elected, in accordance with the procedures specified in Section 5.4(a)(i) or
(d)(i) of the Purchase Contract Agreement, respectively, to settle its Purchase Contract with Cash and (ii) payment by such Holder of the amount required to settle the Purchase Contract prior to 11:00 a.m., New York City time, on the Business Day immediately preceding the Purchase Contract Settlement Date in lawful money of the United States by certified or cashiers' check or wire transfer in immediately available funds payable to or upon the order of the Company, then the Collateral Agent shall promptly invest any Cash received from a Holder in connection with a Cash Settlement in Permitted Investments. Upon receipt of the proceeds upon the maturity of the Permitted Investments on the Purchase Contract Settlement Date, the Collateral Agent shall pay the portion of such proceeds and deliver any certified or cashiers' checks received, in an aggregate amount equal to the Purchase Price, to the Company on the Purchase Contract Settlement Date, and shall distribute any funds in respect of the interest earned from the Permitted Investments to the Purchase Contract Agent for payment to the relevant Holder.

(b) If a Holder of a Corporate Unit (unless a Treasury Portfolio has replaced the relevant Debt Security) fails to notify the Purchase Contract Agent of its intention to make a Cash Settlement in accordance with Section 5.4(a)(i) of the Purchase Contract Agreement, such failure shall constitute a default under the related Purchase Contract and hereunder, and the Holder shall be deemed to have consented to the disposition of the Pledged Debt Securities pursuant to the remarketing as described in Section 5.4(b) of the Purchase Contract Agreement, which is incorporated herein by reference and Section 4.6 hereof, and the Collateral Agent, for the benefit of the Company, will exercise its rights as a secured party with respect to applicable Pledged Debt Securities at the direction of the Company to cause the remarketing of such Pledged Debt Securities. If a Holder of Corporate Units does notify the Purchase Contract Agent as provided in Section 5.4(a)(i) of the Purchase Contract Agreement of its intention to make a Cash Settlement, but fails to make such payment as required by Section 5.4(a)(ii) of the Purchase Contract Agreement, such failure shall constitute a default under the related Purchase Contracts and hereunder, and the Pledged Debt Securities of such a Holder will not be remarketed but instead the Collateral Agent, for the benefit of the Company, will exercise its rights as a secured party with respect to such Debt Securities at the direction of the Company to retain or dispose of the Collateral in accordance with applicable law. In addition, in the event of a Failed Remarketing as described in

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Section 5.4(b) of the Purchase Contract Agreement, such Failed Remarketing shall constitute a default hereunder by such Holder, and the Collateral Agent, for the benefit of the Company, will also exercise its rights as a secured party with respect to such Debt Securities at the direction of the Company to retain or dispose of the Collateral in accordance with applicable law.

(c) If a Holder of Treasury Units or Corporate Units (if a Treasury Portfolio has replaced the Debt Securities) fails to notify the Purchase Contract Agent of such Holder's intention to make a Cash Settlement in accordance with Section 5.4(d)(i) of the Purchase Contract Agreement, or if a Holder of Treasury Units or Corporate Units (if a Treasury Portfolio has replaced the Debt Securities) notifies the Purchase Contract Agent as provided in Section 5.4(d)(i) of the Purchase Contract Agreement of its intention to make a Cash Settlement, but fails to make such payment as required by Section 5.4(d)(ii) of the Purchase Contract Agreement, such failure shall constitute a default under the related Purchase Contracts and hereunder by such Holder and upon the maturity of the related Pledged Treasury Securities or the Pledged Applicable Ownership Interest in a Treasury Portfolio, if any, held by the Collateral Agent on the Business Day immediately preceding the Purchase Contract Settlement Date, the principal amount of such Pledged Treasury Securities or the portion of the Pledged Applicable Ownership Interest in a Treasury Portfolio corresponding to such Purchase Contracts received by the Collateral Agent shall, upon written direction of the Company, be invested promptly in Permitted Investments. On the Purchase Contract Settlement Date, an aggregate amount equal to the Purchase Price will be remitted to the Company as payment thereof. In the event the sum of the proceeds from the Pledged Treasury Securities or the Pledged Applicable Ownership Interest in a Treasury Portfolio, as the case may be, and the investment earnings earned from such investments is in excess of the aggregate Purchase Price of the Purchase Contracts being settled thereby, the Collateral Agent will distribute such excess to the Purchase Contract Agent for the benefit of the Holder of the related Treasury Units or Corporate Units when received.

SECTION 4.5 EARLY SETTLEMENT.

Upon written notice to the Collateral Agent by the Purchase Contract Agent that a Holder of a Security has elected to effect Early Settlement of its entire obligation under the Purchase Contract forming a part of such Security in accordance with the terms of the Purchase Contract and the Purchase Contract Agreement, and that the Purchase Contract Agent has received from such Holder, and paid to the Company as confirmed in writing by the Company, the related Early Settlement Amount pursuant to the terms of the Purchase Contract and the Purchase Contract Agreement and that all conditions to such Early Settlement have been satisfied, then the Collateral Agent shall release from the Pledge,
(a) the Pledged Debt Securities or the appropriate Pledged Applicable Ownership Interest in a Treasury Portfolio in the case of a Holder of Corporate Units or
(b) the Pledged Treasury Securities in the case of a Holder of Treasury Units, in each case that had been components of such Security, and shall transfer such Pledged Debt Securities or the appropriate Pledged Applicable Ownership Interest in a Treasury Portfolio or Pledged Treasury Securities, as the case may be, free and clear of the Pledge created hereby, to the Purchase Contract Agent for the benefit of such Holder.

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SECTION 4.6 APPLICATION OF PROCEEDS; SETTLEMENT.

(a) In the event a Holder of Corporate Units, unless a Treasury Portfolio has replaced the Debt Securities, has not elected to make an effective Cash Settlement by notifying the Purchase Contract Agent in the manner provided for in Section 5.4(a)(i) of the Purchase Contract Agreement or has not made an Early Settlement of the Purchase Contracts underlying its Corporate Units, such Holder shall be deemed to have elected to pay for the shares of Common Stock to be issued under such Purchase Contracts from the Proceeds of the related Pledged Debt Securities. The Collateral Agent shall by 10:00 a.m., New York City time, on the fourth Business Day immediately preceding the Purchase Contract Settlement Date, without any instruction from such Holder of Corporate Units, present the related Pledged Debt Securities to the Remarketing Agent for remarketing. Upon receiving such Pledged Debt Securities, the Remarketing Agent, pursuant to the terms of the Remarketing Agreement, will use its reasonable efforts to remarket such Pledged Debt Securities on such date at a price of approximately [100.5]% (but not less than [100]%) of the aggregate Value of such Pledged Debt Securities, plus accrued and unpaid interest, if any, thereon. After deducting as the Remarketing Fee an amount not exceeding ___ basis points (.__%) of the aggregate Value of the Pledged Debt Securities from any amount of such Proceeds in excess of the sum of (i) the aggregate Value of such Debt Securities, plus (ii) such accrued and unpaid interest on the remarketed Pledged Debt Securities, the Remarketing Agent will remit the entire amount of the Proceeds of a successful remarketing to the Collateral Agent. On the Purchase Contract Settlement Date, the Collateral Agent shall apply that portion of the Proceeds from such remarketing equal to the aggregate Value of the Pledged Debt Securities, to satisfy in full the obligations of such Holders of Corporate Units to pay the Purchase Price to purchase the Common Stock under the related Purchase Contracts. The remaining portion of such Proceeds, if any, shall be distributed by the Collateral Agent to the Purchase Contract Agent for payment to the Holders. If the Remarketing Agent advises the Collateral Agent in writing that it cannot remarket the related Pledged Debt Securities of such Holders of Corporate Units at a price not less than 100% of the aggregate Value of such Pledged Debt Securities plus any accrued and unpaid interest, or if the remarketing does not occur because a condition precedent to it has not been fulfilled, thus resulting in a Failed Remarketing, the Collateral Agent will, for the benefit of the Company, at the written direction of the Company, retain or dispose of the Pledged Debt Securities in accordance with applicable law and satisfy in full, from any such disposition or retention, such Holder's obligation to pay the Purchase Price for the Common Stock under the related Purchase Contracts.

(b) In the event a Holder of Treasury Units or, if a Treasury Portfolio has replaced the Debt Securities, Corporate Units, has not made an Early Settlement of the Purchase Contracts underlying its Treasury Units or Corporate Units, as the case may be, such Holder shall be deemed to have elected to pay for the shares of Common Stock to be issued under such Purchase Contracts from the Proceeds of the related Pledged Treasury Securities or the related Pledged Applicable Ownership Interest in a Treasury Portfolio, as the case may be. On the Business Day immediately prior to the Purchase Contract Settlement Date, the Collateral Agent shall, at the written direction of the Purchase Contract Agent, invest the Cash proceeds of the maturing Pledged Treasury Securities or the Pledged Applicable Ownership Interest in a Treasury Portfolio, as the case may be, in overnight Permitted Investments. Without receiving any instruction from any such Holder of Treasury Units or Corporate Units, the Collateral Agent shall apply the Proceeds of the related Pledged Treasury Securities or Pledged Applicable Ownership Interest in a Treasury Portfolio to the settlement of the related Purchase Contracts on the Purchase Contract Settlement Date. In the event the sum of the Proceeds from the related Pledged Treasury Securities or related Pledged Applicable Ownership Interest in a

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Treasury Portfolio and the investment earnings from the investment in overnight Permitted Investments is in excess of the aggregate Purchase Price of the Purchase Contracts being settled thereby on the Purchase Contract Settlement Date, the Collateral Agent shall distribute such excess, when received, to the Purchase Contract Agent for the benefit of the Holders.

(c) Pursuant to the Remarketing Agreement, on or prior to the fifth Business Day immediately preceding each Reset Date, but no earlier than the Payment Date immediately preceding such Reset Date, holders of Separate Debt Securities may elect to have their Separate Debt Securities remarketed by delivering the Separate Debt Securities, together with a notice of such election, substantially in the form of Exhibit C hereto, to the Custodial Agent. The Custodial Agent will hold the Separate Debt Securities in an account separate from the Collateral Account. A holder of Separate Debt Securities electing to have its Separate Debt Securities remarketed will also have the right to withdraw such election by written notice to the Custodial Agent, substantially in the form of Exhibit D hereto, on or prior to the fifth Business Day immediately preceding the applicable Reset Date, upon which notice the Custodial Agent will return the Separate Debt Securities to such holder. On the fourth Business Day immediately preceding the applicable Reset Date, the Custodial Agent will deliver to the Remarketing Agent for remarketing all Separate Debt Securities delivered to the Custodial Agent pursuant to this
Section 4.6(c) and not withdrawn pursuant to the terms hereof prior to such date. The portion of the proceeds from such remarketing equal to the aggregate Value of the Separate Debt Securities, plus accrued and unpaid interest, if any, thereon, will automatically be remitted by the Remarketing Agent to the Custodial Agent for the benefit of the holders of the Separate Debt Securities. In addition, after deducting as the Remarketing Fee an amount not exceeding __ basis points (.__%) of the Value of the remarketed Separate Debt Securities, from any amount of such proceeds in excess of the sum of (i) the aggregate Value of the remarketed Separate Debt Securities plus (ii) any accrued and unpaid interest thereon, the Remarketing Agent will remit to the Custodial Agent the remaining portion of the proceeds, if any, for the benefit of such holders. If, despite using its reasonable efforts, the Remarketing Agent advises the Custodial Agent in writing that it cannot remarket the related Separate Debt Securities of such holders, together with the remarketed Pledged Debt Securities, at a price not less than 100% of the aggregate Value of the Separate Debt Securities and the Pledged Debt Securities plus accrued and unpaid interest or, if a condition to the remarketing shall not have been fulfilled, thus in either case resulting in a Failed Remarketing, the Remarketing Agent will promptly return the Separate Debt Securities to the Custodial Agent for redelivery to such holders.

ARTICLE V.

VOTING RIGHTS -- DEBT SECURITIES

The Purchase Contract Agent may exercise, or refrain from exercising, any and all voting and other consensual rights pertaining to the Pledged Debt Securities or any part thereof for any purpose not inconsistent with the terms of this Agreement and in accordance with the terms of the Purchase Contract Agreement; provided, that the Purchase Contract Agent shall not exercise or, as the case may be, shall not refrain from exercising such right if, in the

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judgment of the Company, such action would impair or otherwise have a material adverse effect on the value of all or any of the Pledged Debt Securities; and provided, further, that the Purchase Contract Agent shall give the Company and the Collateral Agent at least five days' prior written notice of the manner in which it intends to exercise, or its reasons for refraining from exercising, any such right. Upon receipt of any notices and other communications in respect of any Pledged Debt Securities, including notice of any meeting at which holders of Debt Securities are entitled to vote or solicitation of consents, waivers or proxies of holders of Debt Securities, the Collateral Agent shall use reasonable efforts to send promptly to the Purchase Contract Agent such notice or communication, and as soon as reasonably practicable after receipt of a written request therefor from the Purchase Contract Agent, execute and deliver to the Purchase Contract Agent such proxies and other instruments in respect of such Pledged Debt Securities (in form and substance satisfactory to the Collateral Agent) as are prepared by the Purchase Contract Agent with respect to the Pledged Debt Securities.

ARTICLE VI.

RIGHTS AND REMEDIES; SUBSTITUTION OF A TREASURY PORTFOLIO FOR
DEBT SECURITIES

SECTION 6.1 RIGHTS AND REMEDIES OF THE COLLATERAL AGENT.

(a) In addition to the rights and remedies specified in Section 4.4 hereof or otherwise available at law or in equity, after an event of default hereunder, the Collateral Agent shall have all of the rights and remedies with respect to the Collateral of a secured party under the Uniform Commercial Code (or any successor thereto) as in effect in the State of New York from time to time (the "Code") (whether or not the Code is in effect in the jurisdiction where the rights and remedies are asserted) and the TRADES Regulations and such additional rights and remedies to which a secured party is entitled under the laws in effect in any jurisdiction where any rights and remedies hereunder may be asserted. Wherever reference is made in this Agreement to any section of the Code, such reference shall be deemed to include a reference to any provision of the Code which is a successor to, or amendment of, such section. Without limiting the generality of the foregoing, such remedies may include, to the extent permitted by applicable law, (i) retention of the Pledged Debt Securities or other Collateral in full satisfaction of the Holders' obligations under the Purchase Contracts or (ii) sale of the Pledged Debt Securities or other Collateral in one or more public or private sales and application of the proceeds in full satisfaction of the Holders' obligations under the Purchase Contracts.

(b) Without limiting any rights or powers otherwise granted by this Agreement to the Collateral Agent, in the event the Collateral Agent is unable to make payments to the Company on account of the Pledged Applicable Ownership Interest of a Treasury Portfolio (as specified in clauses (1)(i) or (2)(i) of the definition of the term "Applicable Ownership Interest") or on account of principal payments of any Pledged Treasury Securities as provided in Article III hereof in satisfaction of the obligations of the Holder of the Securities of which such Pledged Treasury Securities, or the Pledged Applicable Ownership Interest of a Treasury Portfolio (as specified in clauses (1)(i) or (2)(i) of the definition of the term "Applicable Ownership Interest"), as applicable, is a part under the related Purchase Contracts, the inability to make such payments shall constitute a default hereunder and the Collateral Agent shall have and may

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exercise, with reference to such Pledged Treasury Securities, or such appropriate Pledged Applicable Ownership Interest of a Treasury Portfolio (as specified in clauses (1)(i) or (2)(i) of the definition of the term Applicable Ownership Interest), as applicable, and such obligations of such Holder, any and all of the rights and remedies available to a secured party under the Code and the TRADES Regulations after default by a debtor, and as otherwise granted herein or under any other law.

(c) Without limiting any rights or powers otherwise granted by this Agreement to the Collateral Agent, the Collateral Agent is hereby irrevocably authorized to receive and collect all payments of (i) principal of, or interest on, the Pledged Debt Securities, (ii) the principal amount of the Pledged Treasury Securities, or (iii) the appropriate Pledged Applicable Ownership Interest in a Treasury Portfolio, subject, in each case, to the provisions of Article III, and as otherwise provided herein.

(d) The Purchase Contract Agent individually and as attorney-in-fact for each Holder of Securities, in the event such Holder becomes the Holder of Corporate Units or Treasury Units, agrees that, from time to time, upon the written request of the Collateral Agent, the Purchase Contract Agent or such Holder, it shall execute and deliver such further documents and do such other acts and things as the Collateral Agent may reasonably request in order to maintain the Pledge, and the perfection and priority thereof, and to confirm the rights of the Collateral Agent hereunder. The Purchase Contract Agent shall have no liability to any Holder for executing any documents or taking any such acts requested by the Collateral Agent hereunder, except for liability for its own negligent act, its own negligent failure to act or its own willful misconduct.

SECTION 6.2 SUBSTITUTION OF A TREASURY PORTFOLIO FOR DEBT SECURITIES.

(a) Upon the occurrence of a Tax Event Redemption prior to the Purchase Contract Settlement Date, the Collateral Agent will, upon the written instruction of the Company and the Purchase Contract Agent, deliver the Applicable Principal Amount of Pledged Debt Securities to the Indenture Trustee for payment of the Redemption Price. The Collateral Agent shall, or in the event the Pledged Debt Securities are registered in the name of the Purchase Contract Agent, the Purchase Contract Agent shall, direct the Indenture Trustee to pay the Redemption Price therefor payable on the Tax Event Redemption Date on or prior to 12:30 p.m., New York City time, by check or wire transfer in immediately available funds at such place and at such account as may be designated by the Collateral Agent. In the event the Collateral Agent receives such Redemption Price, subject to the provisions of Section 4.3 hereof, the Collateral Agent will, at the written direction of the Company, apply an amount equal to the Redemption Amount of such Redemption Price to purchase from the Quotation Agent, the Tax Event Treasury Portfolio and promptly remit the remaining portion of such Redemption Price to the Purchase Contract Agent for payment to the Holders of Corporate Units. The Collateral Agent shall Transfer the Tax Event Treasury Portfolio to the Collateral Account to secure the obligation of all Holders of Corporate Units to purchase Common Stock of the Company under the Purchase Contracts constituting a part of such Corporate Units, in substitution for the Pledged Debt Securities. Thereafter the Collateral Agent shall have such security interests, rights and obligations with respect to the Tax Event Treasury Portfolio as it had in respect of the Pledged Debt Securities, as provided in Articles II, III, IV, V and VI hereof, and any

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reference herein to the Pledged Debt Securities shall be deemed to be a reference to such Tax Event Treasury Portfolio.

(b) Upon the successful remarketing of the Debt Securities on the third Business Day immediately preceding the Initial Reset Date, the proceeds of such remarketing (after deducting any Remarketing Fee) shall be delivered to the Collateral Agent in exchange for the Pledged Debt Securities. Pursuant to the terms of this Agreement, the Collateral Agent will apply an amount equal to the Remarketing Treasury Portfolio Purchase Price to purchase on behalf of the Holders of Corporate Units the Remarketing Treasury Portfolio and promptly remit the remaining portion of such proceeds to the Purchase Contract Agent for payment to the Holders of such Corporate Units. The Remarketing Treasury Portfolio will be substituted for the outstanding Pledged Debt Securities, and will be held by the Collateral Agent in accordance with the terms of this Agreement to secure the obligation of each Holder of a Corporate Unit to purchase the Common Stock of the Company on the Purchase Contract Settlement Date under the Purchase Contract constituting a part of such Corporate Unit. Following the successful remarketing of the Debt Securities on the third Business Day immediately preceding the Initial Reset Date, the Holders of Corporate Units and the Collateral Agent shall have such security interests, rights and obligations with respect to the Remarketing Treasury Portfolio as the Holder of Corporate Units and the Collateral Agent had in respect of the Pledged Debt Securities subject to the Pledge thereof as provided in Articles II, III, IV, V and VI hereof, and any reference herein to the Pledged Debt Securities shall be deemed to be reference to the Remarketing Treasury Portfolio.

SECTION 6.3 INITIAL REMARKETING.

The Collateral Agent shall, by 10:00 a.m., New York City time, on the fourth Business Day immediately preceding the Initial Reset Date, without any instruction from any Holder of Corporate Units, present the related Pledged Debt Securities to the Remarketing Agent for remarketing. Upon receiving such Pledged Debt Securities, the Remarketing Agent, pursuant to the terms of the Remarketing Agreement and the Supplemental Remarketing Agreement, will use its reasonable efforts to remarket such Pledged Debt Securities on such date at a price of approximately [100.5]% (but not less than [100]%) of the Remarketing Treasury Portfolio Purchase Price, plus accrued and unpaid interest, if any, on the Pledged Debt Securities. After deducting as the Remarketing Fee an amount not exceeding __ basis points (.__%) of the Remarketing Treasury Portfolio Purchase Price from any amount of such Proceeds in excess of the sum of (i) Remarketing Treasury Portfolio Purchase Price, plus (ii) the amount of accrued and unpaid interest, if any, on the Pledged Debt Securities, the Remarketing Agent will remit the entire amount of the Proceeds of such remarketing to the Collateral Agent on or prior to 12:00 p.m., New York City time on the Initial Reset Date. In the event the Collateral Agent receives such Proceeds, the Collateral Agent will, at the written direction of the Company, apply an amount equal to the Remarketing Treasury Portfolio Purchase Price to purchase from the Quotation Agent the Remarketing Treasury Portfolio and remit the remaining portion of such Proceeds, if any, to the Purchase Contract Agent for payment to the Holders of Corporate Units. The Collateral Agent shall Transfer the Remarketing Treasury Portfolio to the Collateral Account to secure the obligation of all Holders of Corporate Units to purchase Common Stock of the Company under the Purchase Contracts constituting a part of such Corporate Units, in substitution for the Pledged Debt Securities. Thereafter the Collateral Agent shall have such

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security interests, rights and obligations with respect to the Remarketing Treasury Portfolio as it had in respect of the Pledged Debt Securities as provided in Articles II, III, IV, V and VI hereof, and any reference herein to the Pledged Debt Securities shall be deemed to be a reference to such Remarketing Treasury Portfolio, and any reference herein to interest on the Debt Securities shall be deemed to be a reference to distributions on such Remarketing Treasury Portfolio.

SECTION 6.4 SUBSTITUTIONS.

Whenever a Holder has the right to substitute Treasury Securities, Debt Securities or the appropriate Applicable Ownership Interest in a Treasury Portfolio, as the case may be, for Collateral held by the Collateral Agent, such substitution shall not constitute a novation of the security interest created hereby.

ARTICLE VII.

REPRESENTATIONS AND WARRANTIES; COVENANTS

SECTION 7.1 REPRESENTATIONS AND WARRANTIES.

The Holders from time to time, acting through the Purchase Contract Agent as their attorney-in-fact (it being understood that the Purchase Contract Agent shall not be liable for any representation or warranty made by or on behalf of a Holder), hereby represent and warrant to the Collateral Agent, which representations and warranties shall be deemed repeated on each day a Holder Transfers Collateral that:

(a) such Holder has the power to grant a security interest in and lien on the Collateral;

(b) such Holder is the sole beneficial owner of the Collateral and, in the case of Collateral delivered in physical form, is the sole holder of such Collateral and is the sole beneficial owner of, or has the right to Transfer, the Collateral it Transfers to the Collateral Agent, free and clear of any security interest, lien, encumbrance, call, liability to pay money or other restriction other than the security interest and lien granted under Article II hereof;

(c) upon the Transfer of the Collateral to the Collateral Account or physical delivery of the Debt Securities to the Collateral Agent, the Collateral Agent, for the benefit of the Company, will have a valid and perfected first priority security interest therein (assuming that any central clearing operation or any Intermediary or other entity not within the control of the Holder involved in the Transfer of the Collateral, including the Collateral Agent, gives the notices and takes the action required of it hereunder and under applicable law for perfection of that interest and assuming the establishment and exercise of control pursuant to Section 2.2 hereof); and

(d) the execution and performance by the Holder of its obligations under this Agreement will not result in the creation of any security interest, lien or other encumbrance on the Collateral other than the security interest and lien granted under Article II hereof or violate any provision of any existing law or regulation applicable to it or of any mortgage, charge, pledge,

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indenture, contract or undertaking to which it is a party or which is binding on it or any of its assets.

SECTION 7.2 COVENANTS.

The Holders from time to time, acting through the Purchase Contract Agent as their attorney-in-fact (it being understood that the Purchase Contract Agent shall not be liable for any covenant made by or on behalf of a Holder), hereby covenant to the Collateral Agent that for so long as the Collateral remains subject to the Pledge:

(a) neither the Purchase Contract Agent nor such Holders will create or purport to create or allow to subsist any mortgage, charge, lien, pledge or any other security interest whatsoever over the Collateral or any part of it other than pursuant to this Agreement; and

(b) neither the Purchase Contract Agent nor such Holders will sell or otherwise dispose (or attempt to dispose) of the Collateral or any part of it except for the beneficial interest therein, subject to the pledge hereunder, transferred in connection with the Transfer of the Securities.

ARTICLE VIII.

THE COLLATERAL AGENT

SECTION 8.1 APPOINTMENT, POWERS AND IMMUNITIES.

The Collateral Agent shall act as agent for the Company hereunder with such powers as are specifically vested in the Collateral Agent by the terms of this Agreement, together with such other powers as are reasonably incidental thereto. Each of the Collateral Agent, the Custodial Agent and the Securities Intermediary: (a) shall have no duties or responsibilities except those expressly set forth in or incorporated into this Agreement and no implied covenants or obligations shall be inferred from this Agreement against any of them, nor shall any of them be bound by the provisions of any agreement by any party hereto beyond the specific or incorporated terms hereof; (b) shall not be responsible for any recitals contained in this Agreement, or in any certificate or other document referred to or provided for in, or received by it under, this Agreement, the Securities or the Purchase Contract Agreement (except as specifically incorporated by reference herein), or for the value, validity, effectiveness, genuineness, enforceability or sufficiency of this Agreement (other than as against the Collateral Agent, the Custodial Agent or the Securities Intermediary), the Securities or the Purchase Contract Agreement or any other document referred to or provided for herein (except as specifically incorporated by reference herein) or therein or for any failure by the Company or any other Person (except the Collateral Agent, the Custodial Agent or the Securities Intermediary, as the case may be) to perform any of its obligations hereunder or thereunder or for the perfection, priority or, except as expressly required hereby, maintenance of any security interest created hereunder; (c) shall not be required to initiate or conduct any litigation or collection proceedings hereunder (except in the case of the Collateral Agent, pursuant to directions furnished under Section 8.2 hereof, subject to Section 8.6 hereof);

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(d) shall not be responsible for any action taken or omitted to be taken by it hereunder or under any other document or instrument referred to or provided for herein or in connection herewith or therewith, except for its own negligence or willful misconduct; and (e) shall not be required to advise any party as to selling or retaining, or taking or refraining from taking any action with respect to, the Securities or other property deposited hereunder in accordance with the terms hereof. Subject to the foregoing, during the term of this Agreement, the Collateral Agent shall take all reasonable action in connection with the safekeeping and preservation of the Collateral hereunder.

No provision of this Agreement shall require the Collateral Agent, the Custodial Agent or the Securities Intermediary to expend or risk its own funds or otherwise incur any financial liability in the performance of any of its duties hereunder. In no event shall the Collateral Agent, the Custodial Agent or the Securities Intermediary be liable for any amount in excess of the Value of the Collateral. Notwithstanding the foregoing, the Collateral Agent, the Custodial Agent and the Securities Intermediary, each in its individual capacity, hereby waive any right of setoff, bankers lien, liens or perfection rights as Securities Intermediary or any counterclaim with respect to any of the Collateral.

SECTION 8.2 INSTRUCTIONS OF THE COMPANY.

The Company shall have the right, by one or more instruments in writing executed and delivered to the Collateral Agent, the Custodial Agent or the Securities Intermediary, as the case may be, to direct the time, method and place of conducting any proceeding for the realization of any right or remedy available to the Collateral Agent, or of exercising any power conferred on the Collateral Agent, the Custodial Agent or the Securities Intermediary, as the case may be, or to direct the taking or refraining from taking of any action authorized by this Agreement; provided, however, that (i) such direction shall not conflict with the provisions of any law or of this Agreement and (ii) the Collateral Agent, the Custodial Agent and the Securities Intermediary shall be adequately indemnified as provided herein. Nothing in this Section 8.2 shall impair the right of the Collateral Agent in its discretion to take any action or omit to take any action which it deems proper and which is not inconsistent with such direction.

SECTION 8.3 RELIANCE BY COLLATERAL AGENT.

Each of the Securities Intermediary, the Custodial Agent and the Collateral Agent shall be entitled conclusively to rely upon any certification, order, judgment, opinion, notice or other communication (including, without limitation, any thereof by telephone, telecopy, telex or facsimile) believed by it to be genuine and correct and to have been signed or sent by or on behalf of the proper Person or Persons (without being required to determine the correctness of any fact stated therein), and upon advice and statements of legal counsel and other experts selected by the Collateral Agent, the Custodial Agent or the Securities Intermediary, as the case may be. As to any matters not expressly provided for by this Agreement, the Collateral Agent, the Custodial Agent and the Securities Intermediary shall in all cases be fully protected in acting, or in refraining from acting, hereunder in accordance with instructions given by the Company in accordance with this Agreement.

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SECTION 8.4 RIGHTS IN OTHER CAPACITIES.

The Collateral Agent, the Custodial Agent and the Securities Intermediary and their affiliates may (without having to account therefor to the Company) accept deposits from, lend money to, make their investments in and generally engage in any kind of banking, trust or other business with the Purchase Contract Agent and any Holder of Securities (and any of their respective subsidiaries or affiliates) as if it were not acting as the Collateral Agent, the Custodial Agent or the Securities Intermediary, as the case may be, and the Collateral Agent, the Custodial Agent and the Securities Intermediary and their affiliates may accept fees and other consideration from the Purchase Contract Agent and any Holder of Securities without having to account for the same to the Company; provided that each of the Securities Intermediary, the Custodial Agent and the Collateral Agent covenants and agrees with the Company that it shall not accept, receive or permit there to be created in favor of itself and shall take no affirmative action to permit there to be created in favor of any other Person, any security interest, lien or other encumbrance of any kind in or upon the Collateral.

SECTION 8.5 NON-RELIANCE ON COLLATERAL AGENT.

None of the Securities Intermediary, the Custodial Agent or the Collateral Agent shall be required to keep itself informed as to the performance or observance by the Purchase Contract Agent or any Holder of Securities of this Agreement, the Purchase Contract Agreement, the Securities or any other document referred to or provided for herein or therein or to inspect the properties or books of the Purchase Contract Agent or any Holder of Securities. The Collateral Agent, the Custodial Agent and the Securities Intermediary shall not have any duty or responsibility to provide the Company with any credit or other information concerning the affairs, financial condition or business of the Purchase Contract Agent or any Holder of Securities (or any of their respective affiliates) that may come into the possession of the Collateral Agent, the Custodial Agent or the Securities Intermediary or any of their respective affiliates.

SECTION 8.6 COMPENSATION AND INDEMNITY.

The Company agrees: (i) to pay each of the Collateral Agent and the Custodial Agent from time to time such compensation as shall be agreed in writing between the Company and the Collateral Agent or the Custodial Agent, as the case may be, for all services rendered by each of them hereunder and (ii) to indemnify the Collateral Agent, the Custodial Agent and the Securities Intermediary for, and to hold each of them harmless from and against, any loss, liability or reasonable out-of-pocket expense incurred without negligence, willful misconduct or bad faith on its part, arising out of or in connection with the acceptance or administration of its powers and duties under this Agreement, including the reasonable out-of-pocket costs and expenses (including reasonable fees and expenses of counsel) of defending itself against any claim or liability in connection with the exercise or performance of such powers and duties. The Collateral Agent, the Custodial Agent and the Securities Intermediary shall each promptly notify the Company of any third party claim which may give rise to indemnity hereunder and give the Company the opportunity to participate in the defense of such claim with counsel reasonably satisfactory to the indemnified party, and no such claim shall be settled without the written consent of the Company, which consent shall not be unreasonably withheld.

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SECTION 8.7 FAILURE TO ACT.

In the event of any ambiguity in the provisions of this Agreement or any dispute between or conflicting claims by or among the parties hereto or any other Person with respect to any funds or property deposited hereunder, the Collateral Agent and the Custodial Agent shall be entitled, after prompt notice to the Company and the Purchase Contract Agent, at its sole option, to refuse to comply with any and all claims, demands or instructions with respect to such property or funds so long as such dispute or conflict shall continue, and neither the Collateral Agent nor the Custodial Agent shall be or become liable in any way to any of the parties hereto for its failure or refusal to comply with such conflicting claims, demands or instructions. The Collateral Agent and the Custodial Agent shall be entitled to refuse to act until either (i) such conflicting or adverse claims or demands shall have been finally determined by a court of competent jurisdiction or settled by agreement between the conflicting parties as evidenced in a writing, satisfactory to the Collateral Agent or the Custodial Agent, as the case may be, or (ii) the Collateral Agent or the Custodial Agent, as the case may be, shall have received security or an indemnity satisfactory to the Collateral Agent or the Custodial Agent, as the case may be, sufficient to save the Collateral Agent or the Custodial Agent, as the case may be, harmless from and against any and all loss, liability or reasonable out-of-pocket expense which the Collateral Agent or the Custodial Agent, as the case may be, may without negligence, willful misconduct, or bad faith on its part incur by reason of its acting. The Collateral Agent or the Custodial Agent may in addition elect to commence an interpleader action or seek other judicial relief or orders as the Collateral Agent or the Custodial Agent, as the case may be, may deem necessary. Notwithstanding anything contained herein to the contrary, neither the Collateral Agent nor the Custodial Agent shall be required to take any action that is in its opinion contrary to law or to the terms of this Agreement, or which would in its opinion subject it or any of its officers, employees or directors to liability.

SECTION 8.8 RESIGNATION OF COLLATERAL AGENT.

Subject to the appointment and acceptance of a successor Collateral Agent or Custodial Agent as provided below, (a) the Collateral Agent and the Custodial Agent may resign at any time by giving notice thereof to the Company and the Purchase Contract Agent as attorney-in-fact for the Holders of Securities, (b) the Collateral Agent and the Custodial Agent may be removed at any time by the Company and (c) if the Collateral Agent or the Custodial Agent fails to perform any of its material obligations hereunder in any material respect for a period of not less than 20 days after receiving written notice of such failure by the Purchase Contract Agent and such failure shall be continuing, the Collateral Agent or the Custodial Agent may be removed by the Purchase Contract Agent. The Purchase Contract Agent shall promptly notify the Company of any removal of the Collateral Agent pursuant to clause (c) of the immediately preceding sentence. Upon any such resignation or removal, the Company shall have the right to appoint a successor Collateral Agent or Custodial Agent, as the case may be. If no successor Collateral Agent or Custodial Agent, as the case may be, shall have been so appointed and shall have accepted such appointment within 30 days after the retiring Collateral Agent's or Custodial Agent's giving of notice of resignation or such removal, then the retiring Collateral Agent or Custodial Agent, as the case may be, may petition any court of competent jurisdiction for the appointment of a successor Collateral Agent or Custodial Agent, as the case may be. Each of the Collateral Agent and the Custodial Agent shall be a bank which has an office in New York,

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New York with a combined capital and surplus of at least $75,000,000. Upon the acceptance of any appointment as Collateral Agent or Custodial Agent, as the case may be, hereunder by a successor Collateral Agent or Custodial Agent, as the case may be, such successor shall thereupon succeed to and become vested with all the rights, powers, privileges and duties of the retiring Collateral Agent or Custodial Agent, as the case may be, and the retiring Collateral Agent or Custodial Agent, as the case may be, shall take all appropriate action to transfer any money and property held by it hereunder (including the Collateral) to such successor. The retiring Collateral Agent or Custodial Agent shall, upon such succession, be discharged from its duties and obligations as Collateral Agent or Custodial Agent hereunder. After any retiring Collateral Agent's or Custodial Agent's resignation hereunder as Collateral Agent or Custodial Agent, the provisions of this Article VIII shall continue in effect for its benefit in respect of any actions taken or omitted to be taken by it while it was acting as the Collateral Agent or Custodial Agent. Any resignation or removal of the Collateral Agent hereunder shall be deemed for all purposes of this Agreement as the simultaneous resignation or removal of the Custodial Agent and the Securities Intermediary.

SECTION 8.9 RIGHT TO APPOINT AGENT OR ADVISOR.

The Collateral Agent shall have the right to appoint agents or advisors in connection with any of its duties hereunder, and the Collateral Agent shall not be liable for any action taken or omitted by, or in reliance upon the advice of, such agents or advisors selected in good faith. The appointment of agents pursuant to this Section 8.9 shall be subject to prior consent of the Company, which consent shall not be unreasonably withheld.

SECTION 8.10 SURVIVAL.

The provisions of this Article VIII shall survive termination of this Agreement and the resignation or removal of the Collateral Agent or the Custodial Agent.

SECTION 8.11 EXCULPATION.

Anything in this Agreement to the contrary notwithstanding, in no event shall any of the Collateral Agent, the Custodial Agent or the Securities Intermediary or their officers, employees or agents be liable under this Agreement to any third party for indirect, special, punitive, or consequential loss or damage of any kind whatsoever, including lost profits, whether or not the likelihood of such loss or damage was known to the Collateral Agent, the Custodial Agent or the Securities Intermediary, or any of them, incurred without any act or deed that is found to be attributable to gross negligence or willful misconduct on the part of the Collateral Agent, the Custodial Agent or the Securities Intermediary.

ARTICLE IX.

AMENDMENT

SECTION 9.1 AMENDMENT WITHOUT CONSENT OF HOLDERS.

Without the consent of any Holders or the holders of any Separate Debt Securities, the Company, the Collateral Agent, the Custodial Agent, the

25

Securities Intermediary and the Purchase Contract Agent, at any time and from time to time, may amend this Agreement, in form satisfactory to the Company, the Collateral Agent, the Custodial Agent, the Securities Intermediary and the Purchase Contract Agent, for any of the following purposes:

(a) to evidence the succession of another Person to the Company, and the assumption by any such successor of the covenants of the Company; or

(b) to add to the covenants of the Company for the benefit of the Holders, or to surrender any right or power herein conferred upon the Company so long as such covenants or such surrender do not adversely affect the validity, perfection or priority of the security interests granted or created hereunder; or

(c) to evidence and provide for the acceptance of appointment hereunder by a successor Collateral Agent, Custodial Agent, Securities Intermediary or Purchase Contract Agent; or

(d) to cure any ambiguity, to correct or supplement any provisions herein which may be inconsistent with any other such provisions herein, or to make any other provisions with respect to such matters or questions arising under this Agreement, provided such action shall not adversely affect the interests of the Holders.

SECTION 9.2 AMENDMENT WITH CONSENT OF HOLDERS.

With the consent of the Holders of not less than a majority of the Purchase Contracts at the time outstanding, by Act of said Holders delivered to the Company, the Purchase Contract Agent or the Collateral Agent, as the case may be, the Company, the Purchase Contract Agent, the Collateral Agent, the Custodial Agent and the Securities Intermediary may amend this Agreement for the purpose of modifying in any manner the provisions of this Agreement or the rights of the Holders in respect of the Securities; provided, however, that no such supplemental agreement shall, without the consent of the Holder of each Outstanding Security adversely affected thereby,

(a) change the amount or type of Collateral underlying a Security (subject to the rights of Holders to make Collateral Substitutions as contemplated by Sections 4.1 and 4.2), impair the right of the Holder of any Security to receive distributions on the underlying Collateral or otherwise adversely affect the Holder's rights in or to such Collateral; or

(b) otherwise effect any action that would require the consent of the Holder of each Outstanding Security affected thereby pursuant to the Purchase Contract Agreement if such action were effected by an agreement supplemental thereto; or

(c) reduce the percentage of Purchase Contracts the consent of whose Holders is required for any such amendment.

It shall not be necessary for any Act of Holders under this Section to approve the particular form of any proposed amendment, but it shall be sufficient if such Act shall approve the substance thereof.

26

SECTION 9.3 EXECUTION OF AMENDMENTS.

In executing any amendment permitted by this Section, the Collateral Agent, the Custodial Agent, the Securities Intermediary and the Purchase Contract Agent shall be entitled to receive and (subject to Section 6.1 hereof, with respect to the Collateral Agent, and Section 7.1 of the Purchase Contract Agreement, with respect to the Purchase Contract Agent) shall be fully protected in relying upon, an Opinion of Counsel stating that the execution of such amendment is authorized or permitted by this Agreement and that all conditions precedent, if any, to the execution and delivery of such amendment have been satisfied.

SECTION 9.4 EFFECT OF AMENDMENTS.

Upon the execution of any amendment under this Article IX, this Agreement shall be modified in accordance therewith, and such amendment shall form a part of this Agreement for all purposes; and every Holder of Securities theretofore or thereafter authenticated, executed on behalf of the Holders and delivered under the Purchase Contract Agreement shall be bound thereby.

SECTION 9.5 REFERENCE TO AMENDMENTS.

Security Certificates authenticated, executed on behalf of the Holders and delivered after the execution of any amendment pursuant to this Article IX may, and shall if required by the Collateral Agent or the Purchase Contract Agent, bear a notation in form approved by the Purchase Contract Agent and the Collateral Agent as to any matter provided for in such amendment. If the Company shall so determine, new Security Certificates so modified as to conform, in the opinion of the Collateral Agent, the Purchase Contract Agent and the Company, to any such amendment may be prepared and executed by the Company and authenticated, executed on behalf of the Holders and delivered by the Purchase Contract Agent in accordance with the Purchase Contract Agreement in exchange for Outstanding Security Certificates.

ARTICLE X.

MISCELLANEOUS

SECTION 10.1 NO WAIVER.

No failure on the part of the Collateral Agent or any of its agents to exercise, and no course of dealing with respect to, and no delay in exercising, any right, power or remedy hereunder shall operate as a waiver thereof; nor shall any single or partial exercise by the Collateral Agent or any of its agents of any right, power or remedy hereunder preclude any other or further exercise thereof or the exercise of any other right, power or remedy. The remedies herein are cumulative and are not exclusive of any remedies provided by law.

SECTION 10.2 GOVERNING LAW.

THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH

THE LAWS OF THE STATE OF NEW YORK. Without limiting the foregoing, the above

27

choice of law is expressly agreed to by the Company, the Securities Intermediary, the Custodial Agent, the Collateral Agent and the Holders from time to time acting through the Purchase Contract Agent, as their attorney-in-fact, in connection with the establishment and maintenance of the Collateral Account. The Company, the Collateral Agent and the Holders from time to time of the Securities, acting through the Purchase Contract Agent as their attorney-in-fact, hereby submit to the nonexclusive jurisdiction of the United States District Court for the Southern District of New York and of any New York state court sitting in New York City for the purposes of all legal proceedings arising out of or relating to this Agreement or the transactions contemplated hereby. The Company, the Collateral Agent and the Holders from time to time of the Securities, acting through the Purchase Contract Agent as their attorney-in-fact, irrevocably waive, to the fullest extent permitted by applicable law, any objection which they may now or hereafter have to the laying of the venue of any such proceeding brought in such a court and any claim that any such proceeding brought in such a court has been brought in an inconvenient forum.

SECTION 10.3 NOTICES.

All notices, requests, consents and other communications provided for herein (including, without limitation, any modifications of, or waivers or consents under, this Agreement) shall be given or made in writing (including, without limitation, by telecopy) delivered to the intended recipient at the "Address for Notices" specified below its name on the signature pages hereof (or in the case of Holders, may be made and deemed given as provided in Sections 1.5 and 1.6 of the Purchase Contract Agreement) or, as to any party, at such other address as shall be designated by such party in a notice to the other parties. Except as otherwise provided in this Agreement, all such communications shall be deemed to have been duly given when transmitted by telecopier or personally delivered or, in the case of a mailed notice, upon receipt, in each case given or addressed as aforesaid (except as aforesaid).

SECTION 10.4 SUCCESSORS AND ASSIGNS.

This Agreement shall be binding upon and inure to the benefit of the respective successors and assigns of the Company, the Collateral Agent, the Custodial Agent, the Securities Intermediary and the Purchase Contract Agent, and the Holders from time to time of the Securities, by their acceptance of the same, shall be deemed to have agreed to be bound by the provisions hereof and to have ratified the agreements of, and the grant of the Pledge hereunder by, the Purchase Contract Agent.

SECTION 10.5 COUNTERPARTS.

This Agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument, and any of the parties hereto may execute this Agreement by signing any such counterpart.

SECTION 10.6 SEVERABILITY.

If any provision hereof is invalid and unenforceable in any jurisdiction, then, to the fullest extent permitted by law, (i) the other provisions hereof shall remain in full force and effect in such jurisdiction and shall be liberally construed in order to carry out the intentions of the parties

28

hereto as nearly as may be possible and (ii) the invalidity or unenforceability of any provision hereof in any jurisdiction shall not affect the validity or enforceability of such provision in any other jurisdiction.

SECTION 10.7 EXPENSES, ETC.

The Company agrees to reimburse the Collateral Agent and the Custodial Agent for: (a) all reasonable out-of-pocket costs and expenses of the Collateral Agent and the Custodial Agent (including, without limitation, the reasonable fees and expenses of the necessary services of a Securities Intermediary and of counsel to the Collateral Agent and the Custodial Agent), in connection with
(i) the negotiation, preparation, execution and delivery or performance of this Agreement and (ii) any modification, supplement or waiver of any of the terms of this Agreement; (b) all reasonable costs and expenses of the Collateral Agent (including, without limitation, reasonable fees and expenses of counsel) in connection with (i) any enforcement or proceedings resulting or incurred in connection with causing any Holder of Securities to satisfy its obligations under the Purchase Contracts forming a part of the Securities and (ii) the enforcement of this Section 10.7; and (c) all transfer, stamp, documentary or other similar taxes, assessments or charges levied by any governmental or revenue authority in respect of this Agreement or any other document referred to herein and all costs, expenses, taxes, assessments and other charges incurred in connection with any filing, registration, recording or perfection of any security interest contemplated hereby.

SECTION 10.8 SECURITY INTEREST ABSOLUTE.

All rights of the Collateral Agent and security interests hereunder, and all obligations of the Holders from time to time hereunder, shall be absolute and unconditional irrespective of:

(a) any lack of validity or enforceability of any provision of the Purchase Contracts or the Securities or any other agreement or instrument relating thereto;

(b) any change in the time, manner or place of payment of, or any other term of, or any increase in the amount of, all or any of the obligations of Holders of Securities under the related Purchase Contracts, or any other amendment or waiver of any term of, or any consent to any departure from any requirement of, the Purchase Contract Agreement or any Purchase Contract or any other agreement or instrument relating thereto; or

(c) any other circumstance which might otherwise constitute a defense available to, or discharge of, a borrower, a guarantor or a pledgor.

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IN WITNESS WHEREOF, the parties hereto have caused this Pledge Agreement to be duly executed as of the day and year first above written.

TXU CORP.

By:

Name:


Title:

Address for Notices:

TXU Corp.
Energy Plaza
1601 Bryan Street
Dallas, Texas 75201
Attention:
Telecopy:

THE BANK OF NEW YORK as
Purchase Contract Agent and
as attorney-in-fact of the
Holders from time to time
of the Securities

By:

Name:


Title:

Address for Notices:

The Bank of New York
101 Barclay Street
New York, New York 10286
Attention: Corporate Trust
Administration
Telecopy: (212) 815-5915

30


as Collateral Agent, Custodial Agent and as Securities Intermediary

By:
Name:


Title:

Address for Notices:

31

EXHIBIT A

INSTRUCTION FROM PURCHASE CONTRACT AGENT TO COLLATERAL AGENT

___________________, as Collateral Agent

Attention: _____________________

Re: Securities of TXU Corp. (the "Company")

We hereby notify you in accordance with Section [4.1] [4.2] of the Pledge Agreement, dated as of ____________ (the "Pledge Agreement"), among the Company, yourselves, as Collateral Agent, Custodial Agent and Securities Intermediary and ourselves, as Purchase Contract Agent and as attorney-in-fact for the Holders of [Corporate Units] [Treasury Units] from time to time, that the Holder of securities listed below (the "Holder") has elected to substitute $____ [principal amount at maturity of Treasury Securities] [principal amount of Debt Securities] [the Applicable Ownership Interest in the [Remarketing][Tax Event] Treasury Portfolio] in exchange for an equal Value of [Pledged Debt Securities] [the Pledged Applicable Ownership Interest in the [Remarketing] [Tax Event] Treasury Portfolio] [Pledged Treasury Securities] held by you in accordance with the Pledge Agreement and has delivered to us a notice stating that the Holder has Transferred [Debt Securities] [the Applicable Ownership Interest in the [Remarketing] [Tax Event] Treasury Portfolio] [Treasury Securities] to you, as Collateral Agent. We hereby instruct you, upon receipt of such [Treasury Securities] [Debt Securities] [Applicable Ownership Interest in the [Remarketing] [Tax Event] Treasury Portfolio] so Transferred, to release the
[Pledged Debt Securities] [Pledged Applicable Ownership Interest in the
[Remarketing] [Tax Event] Treasury Portfolio] [Pledged Treasury Securities] related to such [Corporate Units] [Treasury Units] to us in accordance with the Holder's instructions. Capitalized terms used herein but not defined shall have the meaning set forth or incorporated by reference in the Pledge Agreement.

Date:
     -------------------------------      --------------------------------------


                                          By:
                                               ---------------------------------
                                               Name:
                                               Title:
                                               Signature Guarantee:
                                                                   -------------


Please print name and address of registered Holder electing to substitute
[Treasury Securities] [Debt Securities] [Applicable Ownership Interest in a Treasury Portfolio] for [Pledged Debt Securities or Pledged Applicable Ownership Interest in a Treasury Portfolio] [Pledged Treasury Securities]:

------------------------------------      --------------------------------------
                  Name                    Social Security or other Taxpayer
                                          Identification Number, if any

                 Address


------------------------------------




EXHIBIT B

INSTRUCTION TO PURCHASE CONTRACT AGENT

The Bank of New York
101 Barclay Street
New York, New York 10286
Attention: Corporate Trust Administration Telecopy: (212) 815-5915

Re: Securities of TXU Corp. (the "Company")

The undersigned Holder hereby notifies you that it has delivered to ________, as Collateral Agent, $____ [principal amount at maturity of Treasury Securities] [principal amount of Debt Securities] [of the appropriate Applicable Ownership Interest in the [Remarketing] [Tax Event] Treasury Portfolio] in exchange for an equal Value of [Pledged Debt Securities or the Pledged Applicable Ownership Interest in the [Remarketing] [Tax Event] Treasury Portfolio, as the case may be,] [Pledged Treasury Securities] held by the Collateral Agent, in accordance with Section [4.1] [4.2] of the Pledge Agreement, dated as of_______________ (the "Pledge Agreement"), among you, the Company and the Collateral Agent. The undersigned Holder hereby instructs you to instruct the Collateral Agent to release to you on behalf of the undersigned Holder the [Pledged Debt Securities or the Pledged Applicable Ownership Interest in the [Remarketing] [Tax Event] Treasury Portfolio] [Pledged Treasury Securities] related to such [Corporate Units] [Treasury Units]. Capitalized terms used herein but not defined shall have the meaning set forth or incorporated by reference in the Pledge Agreement.

Date:
     -------------------------------      --------------------------------------


                                          Signature Guarantee:
                                                              ------------------


Please print name and address of Registered Holder:

------------------------------------      --------------------------------------
                  Name                    Social Security or other Taxpayer
                                          Identification Number, if any

                 Address


------------------------------------




EXHIBIT C

INSTRUCTION TO CUSTODIAL AGENT REGARDING REMARKETING

Re: Securities of TXU Corp. (the "Company")

The undersigned hereby notifies you in accordance with Section 4.6(c) of the Pledge Agreement, dated as of ____________ (the "Pledge Agreement"), among the Company, yourselves, as Collateral Agent, Securities Intermediary and Custodial Agent, and The Bank of New York, as Purchase Contract Agent and as attorney-in-fact for the Holders of Corporate Units and Treasury Units from time to time, that the undersigned elects to deliver $________ principal amount of Debt Securities for delivery to the Remarketing Agent on the Business Day immediately preceding the [Initial Remarketing Date] [Secondary Remarketing Date] for remarketing pursuant to Section 4.6(c) of the Pledge Agreement. The undersigned will, upon request of the Remarketing Agent, execute and deliver any additional documents deemed by the Remarketing Agent or by the Company to be necessary or desirable to complete the sale, assignment and transfer of the Debt Securities tendered hereby.

The undersigned hereby instructs you, upon receipt of the Proceeds of such remarketing from the Remarketing Agent to deliver such Proceeds to the undersigned in accordance with the instructions indicated herein under "A. Payment Instructions". The undersigned hereby instructs you, in the event of Failed Remarketing, upon receipt of the Debt Securities tendered herewith from the Remarketing Agent, to deliver such Debt Securities to the person(s) and the address(es) indicated herein under "B. Delivery Instructions."

With this notice, the undersigned hereby (i) represents and warrants that the undersigned has full power and authority to tender, sell, assign and transfer the Debt Securities tendered hereby and that the undersigned is the record owner of any Debt Securities tendered herewith in physical form or a participant in The Depository Trust Company ("DTC") and the beneficial owner of any Debt Securities tendered herewith by book-entry transfer to your account at DTC and (ii) agrees to be bound by the terms and conditions of Section 4.6(c) of the Pledge Agreement. Capitalized terms used herein but not defined shall have the meaning set forth or incorporated by reference in the Pledge Agreement.

Date:
     -------------------------------      --------------------------------------


                                          By:
                                               ---------------------------------
                                               Name:
                                               Title:
                                               Signature Guarantee:
                                                                   -------------


Please print name and address:

------------------------------------      --------------------------------------
                  Name                    Social Security or other Taxpayer
                                          Identification Number, if any

                 Address


------------------------------------