Turquoise Hill Resources Ltd., formerly Ivanhoe Mines Ltd., is an international mineral exploration and development company. The Company�s principal mineral resource property is the Oyu Tolgoi Project, located in Mongolia. The Company also has two subsidiaries, through which it holds interests in coal resource properties in Mongolia and molybdenum, rhenium, copper, gold and uranium resource properties in Australia. Its subsidiary, SouthGobi Resources Ltd. (SGQ), owns and operates the Ovoot Tolgoi Coal Project located in Mongolia. Its subsidiary, Ivanhoe Australia Limited (Ivanhoe Australia), owns the Osborne Project, the Merlin Project and the Mount Dore Project, all of which are located in Queensland, Australia. It also holds interests in several other mineral resource projects in Asia, including a 50% interest in the Kyzyl Gold Project, located in Kazakhstan, through a shareholding in Altynalmas Gold. In July 2012, Rio Tinto plc acquired 51% interest in the Company.