AngloGold Ashanti Limited engages in the exploration, production, and marketing of gold. It also produces by-products, such as silver, uranium, and sulfuric acid. The company's principal projects include the Gramalote and the La Colosa projects located in Colombia; the Kibali and the Mongbwalu projects located in the Democratic Republic of the Congo; and the Tropicana project located in Australia. It also operates in South Africa; Continental Africa, including Ghana, Guinea, Mali, Namibia, and Tanzania; and the Americas comprising Argentina, Brazil, and the United States. AngloGold Ashanti Limited was founded in 1944 and is headquartered in Johannesburg, South Africa.