Perseus Mining Reserves Jump 40% to 7.0 Moz Gold on Portfolio Rework
Perseus Mining lifted reserves 40% to 7.0 Moz gold and M&I resources 37% to 10.6 Moz in its June 2026 update, driven by a portfolio re-optimisation across its West African operations.
Perseus Mining lifted its gold reserves by 2.0 million ounces over the past year, a 40% increase to 7.0 Moz, and its measured and indicated resources by 37% to 10.6 Moz, the company said Wednesday. The gains reflect a portfolio re-optimisation that prioritised margin and growth balance over fixed investment targets for individual assets.
The M&I resource base reached 270.3 million tonnes grading 1.22 g/t gold, up from 185.9 Mt at 1.30 g/t a year earlier. Inferred resources climbed 32% to 57.5 Mt grading 1.4 g/t for 2.5 Moz of contained gold. Grading fell slightly in both categories as the resource base expanded, but contained ounces rose sharply on the tonnage increase.
Perseus said it reassessed opportunities across its portfolio during the annual cycle, optimising for
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