Rio Tinto said on Friday it had been told by Mongolia to find a domestic power source for the $5.3bn expansion the Oyu Tolgoi copper mine by 2022. The Rio subsidiary that owns 66% per cent of Oyu Tolgoi, Turquoise Hill Resources, said it and Rio were "continuing to evaluate all viable power options including construction of an Oyu Tolgoi based power plant". "The cost and means of financing this will be finalised between shareholders," the company said in a statement, adding that it was setting ...Den vollständigen Artikel lesen ...