AngloGold Ashanti Ltd. engages in the exploration, mining, and production of gold. The firm's principal product is gold. The company also produces silver in Argentina and sulfuric acid in Brazil as by-products. In Colombia, Quebradona, produces both gold and copper. The firm operates through three segments: Africa, Australia, and Americas. The company has operations in Africa in locations, including Democratic Republic of the Congo, Ghana, Guinea, and Tanzania. The Americas segment includes operations in Argentina, Brazil and Colombia. Its portfolio consists of Cerro Vanguardia SA, AGA Mineracao, Serra Grande, Greenfields projects, Iduapriem, Siguiri, Geita, Kibali, Obuasi and Sunrise Dam. Kibali is situated adjacent to the town of Doko. The firm also holds Sterling and Crown exploration properties in the Beatty district of southern Nevada.