CHARTS: Big mining’s surge in value shames tech giants

Initial underground mine production has successfully commenced at Xstrata Copper’s Ernest Henry Mining operation in north-west Queensland, marking the site’s transition from open pit mining, which is now complete, to underground mining and magnetite processing. This is a major milestone in the progression of Xstrata Copper’s AUD589 million project to extend its Ernest Henry operations to at least 2024.

A new open-pit copper-gold mine in Canada's Yukon Territory would be powered with natural gas. Releasing an update today on its Casino project, Western Copper and Gold Corp. (TSE:WRN) says the company has partnered with Yukon Energy Corp., the territory's energy utility, to evaluate strategies for supplying liquified natural gas (LNG) to the mine and the Yukon.

Gold Fields Ltd., the fourth-biggest producer of the metal, said Ghana’s plan to raise tariffs on mines and introduce a windfall tax could force it to halt expansion projects worth $1 billion in the country.

Ecuador is not a top-of-mind country when it comes to mining, but that could change as the government signals a shift in direction towards the minerals sector, the Globe and Mail is reporting. The Globe reports that the leftist government of Rafael Correa plans to invest $3 billion in the next two and a half years in order to reduce the country's dependence on oil exports.

Reuters reports Peruvian President Ollanta Humala declared a state of emergency late on Sunday banning assembly and giving police special powers of arrest to quell protests against Newmont Mining's Conga gold mine that have caused havoc across the region of Cajamarca for 11 days.

Speaking in an interview with MiningWeekly, CEO Mark Bristow said he expected deal making in the junior gold space to continue, as funding sources dry up.

BusinessLive reports Gold Fields, the world's fourth largest gold producer, is not averse to merger and acquisition activity but will not rely on it, said CEO Nick Holland on Monday. The company, which continues to target five million ounces in development or production by 2015, has spent the last two years aggressively growing its production.

In a statement released to the Johannesburg stock exchange Monday, Gold Fields Limited said that production at its Cerro Corona mine in the Cajarmarca province in Peru has to date not been affected by the continuing protest actions against Newmont Mining and Buenaventura's proposed Conga gold mine.

Forbes reports billionaire investor George Soros is placing a very particular bet on gold by buying $40 to $50 million in shares of a Chinese jeweler ahead of its $2.8 billion IPO. Founded in 1929 Chow Tai Fook is bigger than Tiffany’s and is named after founder Chow Chi Yuen and “Tai Fook” means fortune, prosperity and luck in Chinese.