- Business
- Harmony Gold Mining Company Limited Harmony Gold Mining Company Limited engages primarily in underground and surface gold mining, exploration, and processing, producing gold bullion, silver, and uranium concentrates from operations in South Africa, Papua New Guinea, and Australia. The company operates key underground mines in the Witwatersrand Basin including Klerksdorp goldfield, West Rand, and Free State regions; surface operations such as Kalgold on the Kraaipan Greenstone Belt; the Hidden Valley open-pit gold and silver mine and Wafi-Golpu development project in Papua New Guinea through its 50% interest in Morobe Mining Joint Ventures; and the Eva Copper project in Queensland, Australia, alongside the recently acquired CSA copper mine in New South Wales. Harmony targets international markets for its output, serves diverse stakeholders including refiners and investors, and maintains a focus on operational excellence, safety, and sustainability across its segments of South Africa underground, surface, and international activities.
Founded in 1950 and headquartered in Randfontein, South Africa, Harmony employs over 34,000 people and sustains mineral reserves of approximately 48 million ounces of gold equivalent with broader resources exceeding 189 million ounces.
In recent developments, Harmony completed the acquisition of MAC Copper Limited in October 2025 for approximately $1.08 billion, securing full ownership of the high-grade CSA copper mine to diversify into copper production and support its strategy as a low-cost, globally diversified gold and copper producer; this follows prior expansions including the Eva Copper project in 2022, Hidden Valley in Papua New Guinea in 2016, and Moab Khotsong in 2018.