Gold Fields Ltd is a producer of gold and is a holder of gold reserves and resources in South Africa, Ghana, Australia, and Peru. In Peru, the company also produces copper. The company is involved in underground and surface gold and surface copper mining and silver and related activities, including exploration, extraction, processing, and smelting. It conducts underground and surface mining operations at St. Ives, underground-only operations at Agnew, Granny Smith, and South Deep, and surface-only open pit mining at Damang, Tarkwa, and Cerro Corona. The company's revenues are derived from the sale of gold that it produces.