Rio Tinto (RIO) -2.1% premarket after Mongolia's president says the country should have more...

|About: Rio Tinto plc (RIO)|By:, SA News Editor

Rio Tinto (RIO) -2.1% premarket after Mongolia's president says the country should have more control of the Oyu Tolgoi project, heightening tension over the ownership and future development of the world’s biggest copper mine under construction. The government says total cost of the development has jumped to $24.4B from an earlier $14.6B estimate.