REGALITO COPPER CORP - Report of Foreign Issuer (6-K) SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Vancouver, British Columbia – Lumina Copper Corp announces that it has received excellent drill results from its ongoing drilling program at the Company’s Regalito copper project in Central Chile. New results from the program comprise 9 reverse circulation (“RC”) and core (“DD”) holes, including holes drilled from surface (RG 04-09, RG 04-18, RG 04-32, RG 04-33, RG 04-34, RG 04-36, RG 04-37 and RG 04-38) and a previously drilled reverse circulation hole (“RC”) that has been deepened by DD (RG 04-05). Results are highlighted by hole RG 04-18 that returned 376 meters grading 0.58% copper of which 64% of the contained copper is leachable, including 52 meters grading 1.14% copper, and RG 04-36 that returned 232 meters grading 0.59% copper of which 87% of the contained copper is leachable, including 132 meters grading 0.78%.

The map below shows the location of the holes drilled to date by Lumina (the locations of the 9 drill holes for which these results are being released are highlighted by the circle and cross symbol):

The new results of the drilling program are listed below (The results from RG 04-05 include the composite length and grade for the hole including the previous RC drill results):

Drill Hole	From	To	Length	Cu	Leachability ¹
	metres	metres	Metres	%
RG 04-05	32.00	240.00	208.00	0.46	82%
incl.	100.00	218.00	118.00	0.53	85%
(RC)	32.00	150.00	118.00	0.46	79%
(DD)	150.00	240.00	90.00	0.47	86%
Significance	Thick intersection of leachable mineralization below ridge, open to the north and west.
RG 04-09 (DD)	24.00	158.00	134.00	0.57	pending
incl.	52.00	96.00	44.00	0.83	pending
Significance	Thick intersection of leachable mineralization open to the north and northeast.
RG 04-18 (DD)	36.00	412.00	376.00	0.58	64%
incl.	36.00	300.00	264.00	0.69	74%
	40.00	92.00	52.00	1.14	83%
Significance	200 meter step out from RG 04-11 which intersected 125 meters of leachable mineralization @ 0.69% Cu. This hole shows that the leachable mineral zone is thickening and is open to the south and southwest.
RG 04-32 (RC)	0.00	316.00	316.00	No significant intercepts
Significance	Entire hole drilled in the leached zone and the supergene enrichment zone was not tested.
RG 04-33 (RC)	84.00	290.00	206.00	0.48	93%
incl.	100.00	178.00	78.00	0.63	95%
	100.00	126.00	26.00	1.06	97%
Significance	Thick intersection of highly leachable mineralization, open to the west and south and at depth. Hole bottomed in higher-grade mineralization.
RG 04-34 (RC)	82.00	222.00	140.00	0.37	90%
incl.	202.00	222.00	20.00	0.45	89%
Significance	Thick intersection of highly leachable mineralization, open to the northwest and at depth. Hole bottomed in higher-grade mineralization.
RG 04-36 (RC)	8.00	240.00	232.00	0.59	87%
incl.	8.00	140.00	132.00	0.78	91%
Significance	Thick intersection of highly leachable mineralization in starter pit zone. Thickens below ridge and is open at depth.
RG 04-37 (RC)	2.00	190.00	188.00	0.40	pending
incl.	2.00	64.00	62.00	0.66	96%
Significance	Thick intersection of highly leachable mineralization in starter pit zone. Open at depth in ridge area.
RG 04-38 (RC)	6.00	100.00	94.00	0.64	87%
Significance	Intersection of leachable mineralization in starter pit zone. Open at depth.

In general these results indicate that the supergene blanket at Regalito is still open in all directions laterally, probably deepening to the northwest of the ridge, with the potential to extend the vertical thickness of the blanket over significant areas of its known extent.

An additional RC drilling rig has been added to the three rigs (2 DD, 1RC) already operating on the property. Approximately half of the drilling in the planned 23,500-meter drill program has been completed. The metallurgical testing program, with the assistance of SGS Lakefield in Santiago, is underway. The preliminary economic evaluation has been completed with the assistance of AMEC and will be further refined as new drill results are received.

A technical report, prepared by AMEC on December 12, 2003, provides an Independent Qualified Person’s Review of the previous exploration work and mineral resource estimates carried out on Regalito. This report can be viewed both on Lumina’s website at www.luminacopper.com and on sedar at www.sedar.com.

Anthony Floyd, P.Geo., is the Qualified Person as defined by National Instrument 43-101 for the Regalito Project. Patricio Valenzuela, a Chilean geologist with over 24 years of experience is supervising the quality control and quality assurance program on site. Logging and sampling are completed in Lumina’s secure facility located at the project. The drill cores are mechanically split on site and samples are transported to the Activation Laboratories Limitada facility in La Serena, Chile (Actlabs Chile) for sample preparation and analysis. Total copper content is determined by three-acid digestion and atomic absorption analysis. Sequential copper content is determined by digestion in two steps: 1) with a 5% sulphuric acid cold solution, and 2) a 10% sodium cyanide digestion of the residue of step 1. Solutions from each step are analyzed by atomic absorption. The sum of these two analyses is an indicator of the leachable copper content of the sample. Lumina inserts standards, blanks and duplicates selected on a random basis into the sample stream and sends 5% of the sample pulps to check laboratories in Santiago, Chile. ²

Lumina Copper Corp. is engaged in acquisition, exploration and development of copper resources in both

Footnotes

Safe Harbor Statement under the United States Private Securities Litigation Reform Act of 1995: Except for the statements of historical fact contained herein, the information presented constitutes "forward-looking statements" within the meaning of the Private Securities Act of 1995. Such forward-looking statements, including but not limited to those with respect to the price of copper, gold and molybdenum, the timing and amount of future production, costs of production, reserve and resource determination and reserve conversion rates, involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievement of the Company to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. Such factors include, among others, risks relating to the integration of acquisitions, risk relating to international operations, risks relating to joint-venture operations, the actual results of current exploration activities, conclusions of economic evaluations, changes in project and exploration parameters as plans continue to be refined, future prices of copper, gold and molybdenum, as well as those factors discussed in the section entitled "Risk Factors" in the Form 20-F as on file with the Securities and Exchange Commission in Washington, D.C. Although the Company has attempted to identify important factors that could cause actual results to differ materially, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such statements will prove to be accurate as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements.

CAUTIONARY NOTE TO U.S. INVESTORS CONCERNING ESTIMATES OF MEASURED, INDICATED AND INFERRED RESOURCES:

This presentation uses the terms "Measured", "Indicated" and "Inferred" Resources. U.S. Investors are advised that while such terms are recognized and required by Canadian regulations, the Securities and Exchange Commission does not recognize them. "Inferred Resources" have a great amount of uncertainty as to their existence, and great uncertainty as to their economic and legal feasibility. It cannot be assumed that all or any part of an Inferred Resource will ever be upgraded to a higher category. Under Canadian rules, estimates of Inferred Resources may not form the basis of feasibility or other economic studies. U.S. Investors are cautioned not to assume that all or any part of Measured or Indicated Resources will ever be converted into reserves. U.S. Investors are also cautioned not to assume that all or any part of an Inferred Resource exists, or is economically or legally mineable. U.S. Investors are urged to consider closely the disclosure in our Form 20-F, File No. 0-50311, which may be secured from us, or from the SEC's website at http://www.sec.gov/edgar.shtml.

A News Release dated July 26, 2004 was issued in Vancouver, BC, and disseminated through CCN Matthews.

Lumina Copper Corp announces that it has received excellent drill results from its ongoing drilling program at the Company’s Regalito copper project in Central Chile. New results from the program comprise 9 reverse circulation (“RC”) and core (“DD”) holes, including holes drilled from surface (RG 04-09, RG 04-18, RG 04-32, RG 04-33, RG 04-34, RG 04-36, RG 04-37 and RG 04-38) and a previously drilled reverse circulation hole (“RC”) that has been deepened by DD (RG 04-05). Results are highlighted by hole RG 04-18 that returned 376 meters grading 0.58% copper of which 64% of the contained copper is leachable, including 52 meters grading 1.14% copper, and RG 04-36 that returned 232 meters grading 0.59% copper of which 87% of the contained copper is leachable, including 132 meters grading 0.78%.