Companhia Brasileira de Alumínio engages in mining bauxite for aluminum production. It operates through the following segments: Aluminum, Energy, and Nickel. The Aluminum segment is consist of operations of aluminum production chain, bauxite transformed products, and electric energy. The Energy segment is involved in the sale of surplus energy. The Nickel segment is composed of mining of nickel ore and producing nickel carbonate. The company was founded on December 12, 1941 and is headquartered in Sao Paulo, Brazil.