Chilean Mining Companies to Invest $3.4 Billion in Desal Project

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SANTIAGO

BHP Billiton Ltd. (BHP) and Rio Tinto Group, the two largest mining companies, are investing in a $3.43 billion desalination facility that will supply water to Chile’s Escondida copper mine. BHP, which owns 57.5 percent of the mine, is investing $1.97 billion, and Rio Tinto, which owns 30 percent, will contribute $1.03 billion.