Aluminum Corporation of China Limited is a producer of alumina and primary aluminum in China. The Company has five business segments: alumina, primary aluminum, trading, energy and corporate and other operating. The Company's alumina segment includes the mining and purchasing of bauxite and other raw materials, and production and sale of alumina, as well as alumina-related products. Its primary aluminum segment includes the procurement of alumina, other raw materials, supplemental materials and electricity power, the production and sale of primary aluminum and aluminum-related products. Its trading segment is engaged in the trading of alumina, primary aluminum, other non-ferrous metal products, and crude fuels, such as coal products, as well as supplemental materials. Its energy segment includes coal mining and power generation. It's corporate and other operating segment includes corporate and other aluminum-related research, development and other activities.