Freeport Indonesia, operator of Grasberg, the world’s second-biggest copper mine, is on track shift to all-underground mining by 2022, its chief executive said on Sunday. “By 2021, approximately 75% of our operations will be underground mining, with it reaching 100% by 2022,” said Tony Wenas, chief executive of PT Freeport Indonesia, a unit of Freeport-McMoran […]
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