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