MMG reports growth in key mineral resources and ore reserves

MMG Limited has announced an increase in its Mineral Resources for copper by 3%, lead by 5%, molybdenum by 10%, silver by 3%, and gold by 29% as of June 30, 2025. Conversely, Mineral Resources for zinc decreased by 0.5% and cobalt by 2%. The company’s Ore Reserves saw increases for zinc (13%), lead (10%), cobalt (3%), molybdenum (5%), and gold (10%), while copper declined by 2% and silver by 5%.

The growth in Mineral Resources is primarily attributed to strategic mining parameter changes and exploration drilling at Ferrobamba, adding 660kt of copper, and Ferrobamba Deeps, adding 160kt of copper. Improvements in geotechnical parameters almost doubled Kimbwe-Kafubu copper tonnes with a 53kt increase. Rosebery also contributed significantly, with zinc increasing by 30%, lead by 21%, silver by 29%, gold by 41%, and copper by 23% due to drilling and modelling enhancements.

Ore Reserves benefited from metal price and cost improvements at Las Bambas, increased definition drilling at Rosebery, and the conversion of Inferred Mineral Resources at Dugald River. Furthermore, a feasibility study at Nambulwa and Dianzenza added 31kt of copper to Kinsevere satellite Ore Reserves.