Aluminum Corporation of China Limited, together with its subsidiaries, primarily engages in the exploration and mining of bauxite, coal, and other resources in the People's Republic of China and internationally. The company operates through five segments: Alumina, Primary Aluminum, Energy, Trading, and Corporate and Other Operating. The Alumina segment mines for and purchases bauxite and other raw materials; refines bauxite into alumina; and sells alumina, as well as produces and sells refined alumina, gallium, and multi-form alumina bauxite. The Primary Aluminum segment procures alumina and other raw materials, auxiliary materials, and electrical power; and produces and sells carbon, aluminum alloy, and other electrolytic aluminum products.