Orion Minerals Ltd. increased the indicated and inferred resource estimate for its Prieska project in South Africa to 30.5 million tonnes at 3.7% zinc and 1.2% copper, including an updated resource for the open pit.
Indicated resources total 19.1 million tonnes at 3.59% zinc and 1.18% copper, according to a Jan. 15 release.
The open pit mineral resource stands at 1.8 million tonnes at 2.0% zinc and 1.5% copper containing 35,000 tonnes of zinc and 27,000 tonnes of copper.
The previous indicated and inferred resource estimate stood at 28.7 million tonnes at 3.77% zinc and 1.16% copper containing 1.1 million tonnes of zinc and 334,000 tonnes of copper.
A bankable feasibility study based on the new resource estimate is on track for completion in the second quarter.