The volume of gold sold forward by mining companies jumped 61% in the second quarter after Russia's Polyus Gold added a major new hedge position, an industry report showed on Wednesday.

The shine may soon come off Chile's decade-long copper boom as technical and regulatory problems in getting new mines into production highlight just how hard it will be to keep ratcheting up the supply.

Under the bill, such minerals "will be sold for production costs excluding transportation. That is the mine-gate price.

Gold was unchanged on Wednesday as growing concerns over the global economy prompted safe-haven bids, while the return of top consumer China from a week-long holiday also lifted prices.

Copper slipped on Thursday, with prices vulnerable to further pressure from the dollar's recent strength as investors awaited fresh data for further clues on the health of the U.S. economy and the outlook for interest rates

Amara Mining will invest $400 million over the next two years to build one of Africa's largest gold mines at its Yaoure property in Ivory Coast with production due to start in 2017.

Freeport-McMoRan Inc temporarily suspended open-pit mining at its Indonesian mine on Saturday, a company statement said, after four people died in an accident at one of the world's biggest copper mines.

Miner Anglo American said on Wednesday it won environmental regulatory approval to operate the slurry pipe at its Brazilian iron-ore project Minas Rio, a crucial step in meeting a deadline to enter production by the end of the year.

Mali plans to boost funding opportunities for its artisanal miners and to improve the policing of a sector that produces about a third of the country's gold exports, officials said on Thursday at the start of a mining reform meeting.

CEO Mark Bristow spoke in response to a suggestion from Investec analysts that Randgold buy AngloGold's 45-percent stake in the mine.

JSW Steel, led by billionaire Sajjan Jindal and India's third-largest maker of the alloy, will import 6 million tonnes of iron ore this fiscal year compared with no shipments a year earlier due to production cutbacks at home.

Gill Marcus received a 0.4% pay rise this year, indicating that one of the most prominent opponents of excessive executive pay in Africa's most advanced economy practises what she preaches.