PT Aneka Tambang Tbk engages in the exploration, exploitation, processing, refining, and marketing of minerals, precious metals, and coal. It operates through the following segments: Nickel, Precious Metals and Refinery, Bauxite and Alumina, Head Office, and Others. The Nickel segment refers to ferronickel and nickel ore sales. The Precious Metals and Refinery segment focuses on gold and silver mining, processing, refining, and marketing as well as precious metal refining services. The Bauxite and Alumina segment is involved in the production at the Tayan bauxite mine. The Others segment relates to coal commodities. The company was founded on July 5, 1968 and is headquartered in Jakarta, Indonesia.