Harmony Gold Mining Company Limited is a gold-mining and exploration company. The Company has operations in South Africa and Papua New Guinea. In South Africa, the Company�s operations are focused on the Witwatersrand Basin and the Kraaipan Greenstone Belt. The Company operates nine underground mines, one open-pit mine and several surface operations. The Company�s operations in Papua New Guinea form part of a 50% joint venture with Newcrest Mining Limited. These operations include the Hidden Valley open-pit gold and silver mine, the Wafi-Golpu project and exploration tenements. In addition to its joint venture work, Harmony also has a 100%-owned exploration portfolio that focuses on prospective areas in Papua New Guinea. The Golpu project is a differentiating feature for Harmony and is one of the gold copper porphyries in South East Asia with an expected life-span of approximately 40 years. It has a diameter of approximately 600 meters and a proven depth of approximately 1,700 meters.