Copper

September 20, 2011

Rio Tinto heads underground at Bingham Canyon Mine

After declaring a 730,000 tonne increase of contained copper in mineral resources at Kennecott Utah Copper, Rio Tinto (NYSE:RIO) expects to head underground. Rio Tinto says that the mineral resource,…

September 20, 2011

Mongolia eyes changes to Oyu Tolgoi copper deal

The Mongolian government is discussing possible changes to a 2009 investment agreement for the massive Oyu Tolgoi copper-gold deposit, media reports quoted Mongolia's finance minister, S. Bayartsogt, as saying Tuesday.…

September 20, 2011

Rio Tinto senses a shift in mood

Despite order books that are full and robust commodity prices, Rio Tinto says that customer sentiment is now more cautious and physical markets are softer than they were six months…

September 20, 2011

Rio eyes going underground at copper mine

Rio Tinto has increased the resource estimate for its Bingham Canyon copper mine in the United States, saying the currently open pit operation has significant underground potential. The copper mineral…

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