RPT-Rio Tinto, China's private equity prepare to bid for lithium producer SQM
November 21, 2017 at 08:52 AM EST
LONDON/VANCOUVER, Nov 21 (Reuters) - Rio Tinto , Canada's Wealth Minerals and Chinese private equity firm GSR Capital are considering a bid for a stake in Chilean lithium producer SQM (Sociedad Quimica Y Minera), banking sources told Reuters.