Turquoise Hill Resources Ltd is an international mining company focused on copper, gold and coal mines in Mongolia. The Corporation’s principal and only material mineral resource property is the Oyu Tolgoi Mine, located in Mongolia. The Corporation also has one publicly traded subsidiary through which it holds interests in coal resource properties in Mongolia, being SouthGobi, which owns the Ovoot Tolgoi Coal Project located in Mongolia. As of December 31, 2013, Turquoise Hill held a 56% interest in SouthGobi, which is an integrated coal mining, development and exploration company. SouthGobi owns the Ovoot Tolgoi Coal Project and three development projects, the Soumber Deposit, the Zag Suuj Deposit and the Underground. The Ovoot Tolgoi Complex comprises the Ovoot Tolgoi Coal Project together with the underground.