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40-F
2023 FY
HBM
Hudbay Minerals Inc.
28 Mar 24
Annual report (Canada)
10:08am
4. 3 Zone mineral reserves assume processing recoveries of 85% for gold based on processing through New Britannia's leach circuit.
Snow Lake Gold Mineral Resource Estimates (Exclusive of Mineral Reserves) - January 1, 2024(1)(2)(3)(4)(5) | |||||||
Tonnes | Au (g/t) | Zn (%) | Cu (%) | Ag (g/t) | |||
Gold | Inferred | New Britannia | 2,750,000 | 4.5 | - | - | - |
Birch | 570,000 | 4.4 | - | - | - | ||
Subtotal | 3,320,000 | 4.5 | - | - | - |
40-F
2023 FY
HBM
Hudbay Minerals Inc.
28 Mar 24
Annual report (Canada)
10:08am
4. Estimate of the mineral reserve does not account for marginal amounts of historical small-scale operations in the area that occurred between 1870 and 1970 and is estimated to have extracted approximately 200,000 tonnes, which is within rounding approximations of the current reserve estimates.
Copper World Mineral Resource Estimates (Exclusive of Mineral Reserves) - January 1, 2024(1)(2)(3)(4)(5) | ||||||
Tonnes | Cu (%) | CuSS (%) | Mo (g/t) | Au (g/t) | Ag (g/t) | |
Copper World - Flotation | ||||||
Measured | 424,000,000 | 0.39 | 0.04 | 150 | 0.02 | 4.1 |
Indicated | 191,000,000 | 0.36 | 0.06 | 125 | 0.02 | 3.5 |
Inferred | 192,000,000 | 0.35 | 0.07 | 117 | 0.01 | 3.1 |
Copper World - Leach | ||||||
Measured | 159,000,000 | 0.28 | 0.20 | n/a | n/a | n/a |
Indicated | 70,000,000 | 0.26 | 0.20 | n/a | n/a | n/a |
Inferred | 83,000,000 | 0.26 | 0.19 | n/a | n/a | n/a |
Total Measured + Indicated | 844,000,000 | 0.35 | 0.09 | 104 | 0.01 | 2.9 |
Total Inferred | 275,000,000 | 0.32 | 0.11 | 82 | 0.01 | 2.2 |
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