UNEP, ethical investors join miners’ quest for global tailings rules

World No. 1 copper producer Codelco said on Wednesday it was preparing to halt its Ventanas smelter after a court ordered it to do so following an environmental complaint.

BHP Billiton today announced approval for the Escondida Ore Access project (EOA), the first of a number of development options that will underline Escondida’s status as the world’s premier copper operation. The EOA project will relocate the crushing and conveying facilities currently located inside Escondida’s main pit to improve access to higher grade ore and thereby support higher production from 2013. The project is expected to cost US$554 million (US$319 million BHP Billiton share) and will be completed by mid calendar year 2012.

Copper is the most favoured base metal in BlackRock's $17 billion World Mining Trust, fund manager Evy Hambro said on Tuesday, with the demand and supply outlook keeping prices of the metal resiliently high. At just under 20 percent, copper is the single largest weighting on a pure commodity basis in the fund, Hambro told an Association of Investment Companies roundtable in London.

Ecuador expects companies including Canada's Kinross Gold to invest $7 billion in gold and copper projects in the next seven years, as the OPEC member tries to diversify its economy by encouraging mining. Natural Resources Minister Wilson Pastor said on Tuesday five projects will be signed in the next few months.

Top global miner BHP Billiton has moved into the feasibility study stage of preparing a long-awaited expansion of the Olympic Dam copper and uranium mine in South Australia.

Southern Copper, one of the world's largest producers of the metal, has postponed its $1 billion Tia Maria mining project in Peru because of social conflicts, Chief Executive Oscar Gonzalez said on Tuesday. The company (SCCO.N: Quote) will revise the project's viability later this month and consider alternative sites in Argentina and Ecuador in the meantime, Gonzalez told local television.

Lundin Mining and Inmet Mining late Tuesday called it a day regarding their proposed friendly merger with a kindly farewell: "We continue to think very highly of each other's assets and wish each other well."

Strait Gold Corporation (TSX-V:SRD), is pleased to report final assay results from a 2000-metre drill program at its Alicia copper-gold project in southern Peru. Highlights include: - 134.0 metres of 0.29% copper, 0.03 grams per tonne (g/t) gold in hole ALC11-16, including 9.75 metres of 1.27% copper, 0.07 g/t gold and 0.032% molybdenite; and, - 18.5 metres of 1.25% copper, 0.15g/t gold, 13.3 g/t silver and 0.012% molybdenite in ALC11-17. Image from Strait Gold Corporation

A Mexican tribunal ruled in favor of Grupo Mexico in its fight to merge its two railroad units, throwing out a complaint by competition authorities, the company and the antitrust regulator said on Monday. Grupo Mexico (GMEXICOB.MX: Quote), which owns copper mines in Mexico, Peru and the United States, also operates Ferromex, Mexico's largest railroad company. In 2005, Grupo Mexico bought another rail line, Ferrosur, through a subsidiary.