Copper

Tire maintenance at Barrick Gold's Cortez mine in Nevada. Credit: Barrick Gold

Top 10 US-based miners

The Northern Miner presents the top-10, U.S.-based mining companies by market capitalization. 1. Newmont Goldcorp Market cap: US$31.8 billion Newmont Goldcorp (NYSE: NEM) is a leading gold and copper producer…









Glencore to mothball Mutanda

Low cobalt prices and higher taxes under the new mining code in the Democratic Republic of the Congo have combined to make Glencore’s (LON: GLEN) Mutanda cobalt and copper operation…




Turquoise Hill faces trouble at Mongolian mine

Shares of Canada’s Turquoise Hill Resources (TSX: TRQ; NYSE: TRQ) sunk to historic lows in August on news that production from the vast Oyu Tolgoi copper-gold-silver mine in Mongolia could…


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