Copper

The landscape of McEwen Mining's Los Azules copper porphyry project in San Juan, Argentina. Source: McEwen Mining

McEwen Mining improves Los Azules’ economics

VANCOUVER — It has been nearly three years since McEwen Mining’s (TSX: MUX, NYSE: MUX) wholly owned Los Azules copper porphyry project in the cordillera region of San Juan, Argentina, was put through the rigours of an economic…


Mercator's Mineral Park copper-molybdenum-silver mine in northwestern Arizona. Source: Mercator Minerals

Mercator weighs its options

Mercator Minerals (TSX: ML; US-OTC: MLKKF) is delving into a strategic review that is considering any or all of the following: selling the company; a business combination; or selling all or part of its assets, in light of lower commodity…



The headframe at Nevada Copper's Pumpkin Hollow copper project under construction in Nevada. Source: Nevada Copper

Nevada Copper models open-pit expansion at Pumpkin Hollow

VANCOUVER — Markets have become hesitant towards projects with large development costs, so many companies are contemplating mine development that allows for smaller initial operations that are later expanded. For Vancouver-based Nevada…




The surface of the Mitchell deposit at Seabridge Gold's KSM gold-copper project, 65 km northwest of Stewart, B.C. Source: Seabridge Gold

Seabridge finds more high-grade core zones at KSM

VANCOUVER — Seabridge Gold’s (TSX: SEA; NYSE: SA) KSM project encompasses four deposits that contain 38 million oz. gold and 10 billion lb. copper. But mines for deposits that big are usually expensive to build and operate, and KSM…


An exploration vessel at Nautilus Minerals' Solwara 1 underwater project, in 2010.  Source: Nautilus Minerals

Nautilus, PNG await arbitration decision

VANCOUVER — In 2011 it looked like Nautilus Minerals’ (TSX: NUS; US-OTC: NUSMF) pioneering plan to mine high-grade sea floor sulphide deposits might actually work. The company had permits, a joint venture with the Papua New Guinea…


B.C. Minister of Energy and Mines Bill Bennett (left) joins Taseko Mines president and CEO Russell Hallbauer onstage at the company's Gibraltar mine-expansion celebration in B.C. Photo by Gwen Preston.

Taseko celebrates an improved Gibraltar mine

WILLIAMS LAKE, B.C. — When Taseko Mines (TSX: TKO; NYSE-MKT: TGB) reopened Gibraltar near Williams Lake in 2006, the 36-year-old mine had enough ore to feed its 30,000-tonne-per-day mill for just over three years.




Donner on life-support after losing Bracemac-McLeod

Despite a valiant attempt to raise capital, Donner Metals (TSXV: DON; US-OTC: DONFF) defaulted on a payment owed to Glencore Xstrata (LSE: GLEN) and as a result handed over its 35% interest in the Bracemac-McLeod mine…


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