The Worlds 20 Largest Copper Mines
Nov 25, 2019 The worlds 20 largest copper mines produce nearly 9 million metric tons of the precious metal a year, about 40 of the worlds total copper mine capacity. Chile and Peru, alone, account for more than half of the copper mines on this list. The U.S. makes the cut, as well, with two mines among the top 20. Copper is expensive to mine and refine.