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Gold Fields (GFIJ.J: Quote), the world's fourth-largest listed gold miner, said on Tuesday it had offered to buy out the remaining shares of its Peruvian unit to boost the group's total production of the precious metal.

KGHM (KGHM.WA: Quote), Europe's second biggest copper producer, has launched the sale of its telecoms arm Dialog as part of its plans to shed some non-core assets, sources close to the deal told Reuters late on Monday. "Teasers have been sent," one of the sources said, referring to a document presenting the company to potential buyers.

Canadian base metals miner HudBay Minerals Inc raised its stake in Augusta Resource Corp to 14.3 percent by buying 5.4 million more shares in the company for C$21.3 million. HudBay now holds 20.2 million shares of Augusta Resource, up from about 14.8 million earlier, the company said on Monday.

Lundin Mining has rejected the hostile takeover bid mounted last month by Australia-based Equinox Minerals. Canadian Press reported Sunday that Lundin told its shareholders to reject a debt-financed takeover bid from Equinox, saying the unsolicited offer was "financially inadequate" and fraught with risks: Vancouver-based Lundin (TSX:LUN) said the Equinox (TSX: EQN) bid undervalued the company and would place considerable influence over business decisions in the hands of lenders.

NW Tech Capital Inc. (PINK SHEETS:NWTT) has executed an option agreement that grants the company 100% interest in a prolific platinum, copper and nickel-bearing property located in McConkey Township, Ontario. After successfully completing the negotiation process, management decided to enter into an agreement that gives the company unrestricted rights to explore resources and reserves on what is known as the Caribou Property.

Minera Andes (MAI.TO: Quote) said on Thursday it plans to spin out its Los Azules copper project in Argentina into a new publicly traded company. The Toronto-based exploration company said the move will let it unlock value from Los Azules and allow it to focus on developing its San Jose gold-copper project, which is located in the vicinity of Goldcorp's (G.TO: Quote) recently acquired Cerro Negro project in Argentina.

Two mining companies announced Thursday that their respective dealings with Japanese smelters and steel manufacturers have not been impacted by the devastating Japanese earthquake and tsunami at this time.

Taseko Mines has implemented plans to increase mine production at its flagship Gibraltar Mine to 180,000 pounds of copper and one million […]

Shanghai-listed Western Mining Co Ltd said it plans to build a 100,000-tonne-per-year copper smelter in the northern western Chinese province of Qinghai, Reuters reported: The cost of the project was estimated at 2.28 billion yuan ($347 million), the company said in a statement on Friday, adding that it would seek a partner to build the smelter with the Western Mining holding a majority stake. "The project is going to add pressure to the local supply of copper concentrate," said senior copper analyst Yang Changhua at state-backed research firm Antaike.