Copper Mountain begins commissioning third ball mill ...
2021-9-22 · The Copper Mountain mine is owned 75% and operated by Copper Mountain Mining; Mitsubishi Materials owns the remaining 25%. As of Jan. 1, 2021, the Copper Mountain mine had measured and indicated resources of 597.1 million tonnes grading 0.24% copper, 0.10 g/t gold and 0.7 g/t silver, containing 4 billion lb. of copper, 1.7 million oz. of gold ...