Rio Tinto confirmed today that it has given notice to Ivanhoe Mines Ltd (Ivanhoe) that it is exercising all of its Series A warrants which will increase Rio Tinto’s ownership of Ivanhoe shares by 7.3 per cent to 29.6 per cent and provide sufficient funds to Ivanhoe to continue the development of the Oyu Tolgoi copper and gold complex as currently scheduled. Read more