Harmony Gold Mining Company Limited engages in the exploration, extraction, and processing of gold. The company also explores for uranium, silver, copper, and molybdenum deposits. It has eight underground operations in the Witwatersrand Basin; an open-pit mine on the Kraaipan Greenstone Belt; and various surface source operations in South Africa. The company also owns interests in the Hidden Valley, an open-pit gold and silver mine; and the Wafi-Golpu project located in Morobe Province in Papua New Guinea. Harmony Gold Mining Company Limited was incorporated in 1950 and is headquartered in Randfontein, South Africa.