Copper prices had been buoyed in recent weeks by outages at some major mines, including Rio Tinto PLC's (RIO) Bingham Canyon in the U.S.

Revett Minerals (NYSE MKT:RVM) (TSE:RVM) plunged almost 25% on Thursday after the company said it must slash its workforce at its Troy mine amid some unexpected structural damage found as part of its underground development work.

Inflation and lower metal prices have pressured margins, said Jorge Palmes, general manager of AngloGold Ashanti Ltd.'s (AU, ANG.JO) Cerro Vanguardia gold mine in Santa Cruz Province. The next step would be to cut costs, but nobody wants to start ...

The world's third-largest open-pit copper mine, Grasberg, remained shut Monday following last week's fatal accident that appears to have claimed 28 lives.

Wednesday's most followed in Canada including Sears, Treasury Metals, Minera IRL, Allana Potash, Copper Mountain, CP, BRP, Aferro Mining, RESAAS.

s (PXP) shareholders Monday approved a $6.5 billion merger with Freeport-McMoRan Copper & Gold Inc. (FCX), overcoming earlier pressure to reject the deal.

Copper prices are also drawing support from the work suspension following a fatal accident at Freeport McMoRan Copper & Gold Inc.'s (FCX) Grasberg mine in Indonesia. The company halted output at the world's third-largest open pit copper mine to focus ...

Markets remain unaffected by the news, with traders saying the shutdown appears temporary and the company assuring that it has stock of gold and copper to cover existing orders. In 2011, a three-month strike at the mining site substantially cut the ...

Copper prices are also drawing support from the work suspension following a fatal accident at Freeport McMoRan Copper & Gold Inc.'s (FCX) Grasberg mine in Indonesia. The company halted output at the world's third-largest open pit copper mine to focus ...

"Demand's a great story," said Tim Reyes, president, Alcoa Materials Management, part of aluminum producer Alcoa Inc. (AA), which is investing heavily in expanding its rolling and processing facilities, even while considering cuts to its primary metal ...