Hudbay Provides Annual Reserve and Resource Update with Mine Life Extensions and Improved Three-Year Production Outlook

2026-03-27 - 11:20

Note: totals may not add up correctly due to rounding. 1 Mineral resources are exclusive of mineral reserves and do not have demonstrated economic viability. 2 Mineral reserves are estimated using a minimum NSR cut-off of $7.30 per tonne at Pampacancha, $7.30 per tonne at Constancia and assuming metallurgical recoveries (applied by ore type) of 85.29% for copper on average for the life of mine. 3 Mineral resource estimates are based on resource pit design and do not include factors for mining recovery or dilution. 4 The open pit mineral resources are estimated using a minimum NSR cut-off of $7.30 per tonne and assuming metallurgical recoveries (applied by ore type) of 84.6% for copper on average for the life of mine, while the underground inferred resources at Constancia Norte are based on a 0.65% copper cut-off grade. 5 Long-term metal prices of $4.40 per pound copper, $17.00 per pound molybdenum, $2,800 per ounce gold and $32.00 per ounce silver were used to confirm the economic viability of the mineral reserve estimates and to estimate mineral resources. 6 There are no additional mineral resources left at Pampacancha where mining activities have been completed in 2025. Read More