Gold Fields is holding company. Through its subsidiaries, Co. is a producer of gold and a primary holder of gold reserves and resources in South Africa, Ghana, Australia and Peru. In Peru, Co. also produces copper. Co. is primarily involved in underground and surface gold and surface copper mining and related activities, including exploration, extraction, processing and smelting. Co. has certain economic interest in the South Deep mine in South Africa. Co. also owns the St Ives, Agnew, Granny Smith mines and Gruyere gold mine in Australia, the Tarkwa and Damang mines in Ghana and the Asanko mine in Ghana. Co. also owns the Cerro Corona mine in Peru.