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+ Australia - Broken Hill Mine
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Mineral Reserves and Mineral Resources
Diagrammatic relationship between mineral resources and mineral (ore) reserves.
Coeur reports its estimated mineral (ore) reserves and additional mineral resources (exclusive of mineral reserves) on an annual basis.
Mineral reserves correspond to “Ore “Reserves per US SEC and ASX (JORC) classification. Proven reserves correspond to “Proved” per ASX (JORC) guidelines.
Metal prices used to estimate mineral reserves were $11 US per silver ounce and $600 US per gold ounce for Rochester, Cerro Bayo, Martha, and San Bartolomé; $550 US per gold ounce for Kensington, $15 US per silver ounce at Endeavor and $13.5 US per silver ounce at Broken Hill.
Mineral reserve and mineral resource estimates are as of December 31, 2007 for all properties except for Endeavor and Broken Hill which are effective as of June 30, 2007. Mineral resources for Palmarejo are effective as of September 17, 2007.
Mineral resources are in addition to mineral reserves and have not demonstrated economic viability
Refer to the updated Technical Report, dated February 29, 2008, on www.sedar.com for each property.
Proven Mineral Reserves (Year-end 2006) |
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Grade (ounces/ton) |
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Property |
Location |
Tons (000s) |
Silver |
Gold |
Silver |
Gold |
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Rochester |
Nevada, USA |
3,720 |
0.66 |
0.007 |
2,436 |
26 |
Cerro Bayo |
Chile |
375 |
10.41 |
0.20 |
3,902 |
75 |
Martha |
Argentina |
33 |
64.05 |
0.10 |
2,118 |
3 |
San Bartolome |
Bolivia |
- |
- |
- |
- |
- |
Kensington |
Alaska, USA |
- |
- |
- |
- |
- |
Endeavor |
Australia |
9,700 |
1.59 |
- |
15,420 |
- |
Broken Hill |
Australia |
10,064 |
1.46 |
- |
14,648 |
- |
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|
23,892 |
|
|
38,524 |
105 |
Probable Mineral Reserves (Year-end 2006) |
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Grade (ounces/ton) |
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Property |
Location |
Tons (000's) |
Silver |
Gold |
Silver |
Gold |
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Rochester |
Nevada, USA |
- |
- |
- |
- |
- |
Cerro Bayo |
Chile |
259 |
8.66 |
0.18 |
2,242 |
47 |
Martha |
Argentina |
66 |
59.97 |
0.08 |
3,966 |
6 |
San Bartolome |
Bolivia |
46,176 |
3.29 |
- |
151,882 |
- |
Kensington |
Alaska, USA |
4,419 |
- |
0.31 |
- |
1,352 |
Endeavor |
Australia |
11,684 |
1.42 |
- |
16,563 |
- |
Broken Hill |
Australia |
2,844 |
1.18 |
- |
3,368 |
- |
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|
65,448 |
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178,021 |
1,405 |
Mineral Reserves correspond to Ore Reserves per US SEC classification. Metal prices used to determine ore reserves were $8.00/oz Ag and $475.00/oz. Au at Cerro Bayo, Martha and Rochester; $10.00/oz Ag at Endeavor; $10.12/oz Ag at Broken Hill; $6.00/oz Ag at San Bartolome; and $550.00/oz Au at Kensington. Endeavor and Broken Hill reserves are as of June 30, 2006.
Proven Mineral Reserves (Year-end 2005) |
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Short |
Grade (ounces/ton) |
Ounces (000s) |
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Property |
Location |
Tons (000s) |
Silver |
Gold |
Silver |
Gold |
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Rochester |
Nevada, USA |
10,168 |
0.86 |
0.011 |
8,765 |
113 |
Silver Valley |
Idaho, USA |
236 |
25.65 |
- |
6,048 |
- |
Cerro Bayo |
Chile |
439 |
8.58 |
0.15 |
3,764 |
68 |
Martha |
Argentina |
25 |
58.69 |
0.08 |
1,488 |
2 |
San Bartolome |
Bolivia |
- |
- |
- |
- |
- |
Kensington |
Alaska, USA |
- |
- |
- |
- |
- |
Endeavor |
Australia |
5,512 |
1.58 |
- |
8,681 |
- |
Broken Hill |
Australia |
8,522 |
1.31 |
- |
11,134 |
- |
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24,902 |
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39,880 |
183 |
Probable Mineral Reserves (Year-end 2005) |
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Short |
Grade (ounces/ton) |
Ounces (000s) |
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Property |
Location |
Tons (000's) |
Silver |
Gold |
Silver |
Gold |
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Rochester |
Nevada, USA |
- |
- |
- |
- |
- |
Silver Valley |
Idaho, USA |
208 |
23.20 |
- |
4,830 |
- |
Cerro Bayo |
Chile |
496 |
7.48 |
0.13 |
3,712 |
64 |
Martha |
Argentina |
42 |
61.26 |
0.08 |
2,566 |
3 |
San Bartolome |
Bolivia |
46,176 |
3.29 |
- |
151,882 |
- |
Kensington |
Alaska, USA |
4,206 |
- |
0.25 |
- |
1,050 |
Endeavor |
Australia |
6,614 |
2.22 |
- |
14,661 |
- |
Broken Hill |
Australia |
2,998 |
1.27 |
- |
3,822 |
- |
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60,740 |
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181,473 |
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