Gold Fields Ltd. is a gold mining company, which engages in the production of gold and operation of mines. The company is headquartered in Sandton, Gauteng and currently employs 6,560 full-time employees. The firm is involved in underground and surface gold and surface copper mining and silver and related activities, including exploration, extraction, processing and smelting. The company has a total attributable annual gold-equivalent production of over 2.30 million ounces (Moz), gold mineral reserves of 44.6 Moz and gold mineral resources of 30.3 Moz (excluding mineral resources). In Peru, the Company also produces copper. Its economic interest in the South Deep mine in South Africa is 96.43%. The company also owns 100% of the St Ives, Agnew, Granny Smith mines and around 50% of the Gruyere gold mine in Australia, and 90.0% of the Tarkwa and Damang mines in Ghana and 45% of the Asanko mine in Ghana. The company owns 99.5% of the Cerro Corona mine in Peru. The company also has 100% ownership of the Windfall Project in Canada’s Quebec province.