MEXICAN COPPER CO - 20-F - 20040714 - KEY_INFORMATION
ITEM 3. KEY INFORMATION
We have omitted portions of this item on the basis of Instruction I(2)(a) to Form 10-K. See Explanatory Note.
3
SELECTED OPERATING DATA
The following table presents selected production and other operating data for our subsidiaries and us. The data includes production sold to the other operating
units of the Mexcobre Unit.
Year ended December 31,
1999
2000
2001
2002
2003
(Volumes in metric tons, unless otherwise indicated)
Material moved (metric tons in thousands)
81,931
84,175
84,204
62,592
73,916
Ore milled (metric tons in thousands)
33,439
33,308
32,762
21,750
27,327
Ore grade (average % copper for period)
0.54
0.49
0.53
0.54
0.51
Leach ore (metric tons in thousands)
17,814
17,099
24,428
25,531
28,996
Waste (metric tons in thousands)
30,679
33,768
27,014
15,311
17,594
Stripping ratio(1)
1.45
1.53
1.57
1.88
1.70
Copper concentrate production:
Copper
505,988
462,196
503,834
333,885
410,476
Molybdenum
13,839
12,009
9,579
5,944
6,107
Metal contained in concentrate production:
Copper
152,860
136,680
140,760
91,925
107,236
Silver
66
63
59
44
57
Gold (kilograms)
141
138
163
132
202
Molybdenum
7,961
6,886
5,518
3,428
3,501
Smelter(2) and SX-EW production:(3)
Copper anodes
343,919
295,533
317,133
239,031
199,033
Copper cathodes
22,224
21,772
20,609
19,295
21,470
Sulfuric acid
1,009,000
857,300
965,850
703,801
603,300
Refinery production:
Copper cathodes
274,990
244,153
257,495
199,905
163,967
Rod plant production:
Copper rod
98,615
130,611
129,562
97,485
53,822
Precious metals refinery:(4)
Refined silver
66
244
206
212
136
Refined gold (kilograms)
379
1,312
1,177
742
594
(1)
Stripping
ratio is the ratio of waste plus leaching ore to ore mined in the material moved in an open-pit operation.
(2)
Smelter
capacity was increased to 300,000 tons per year in June 1999 with the addition of a new shaft furnace at the La Caridad Smelter.
(3)
The
production at the Mexcobre SX-EW facility includes copper scrap production. SX-EW is a procedure involving a combination of solvent extraction and
electrowinning.
(4)
The
precious metals refinery at La Caridad commenced operations in July 1999.
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