Aluminum Corporation of China Limited (CHALCO), founded in 2001 and headquartered in Beijing, People's Republic of China, operates globally as a comprehensive aluminum enterprise. The company's primary focus is the production and sale of alumina, primary aluminum, aluminum alloys, and carbon products within China and across international markets. Its extensive operations are structured across five distinct segments: 1. Alumina: This segment manages the sourcing of bauxite (through mining and purchase), its refinement into alumina, and the subsequent production and sale of various alumina forms, including refined alumina, gallium, and multi-form alumina bauxite. 2. Primary Aluminum: Dedicated to manufacturing, this segment procures alumina, other raw materials, supplementary inputs, and electrical power to produce and market a range of aluminum and related items like carbon, aluminum alloys, and other electrolytic aluminum products. 3. Trading: Functioning as a commercial arm, this segment facilitates the trade of a wide array of commodities such as alumina, primary aluminum, fabricated aluminum goods, other non-ferrous metals, coal, and essential raw and supplemental materials. It also provides logistics and transportation services to external customers. 4. Energy: This segment encompasses coal mining operations, the generation and sale of electricity (utilizing thermal, wind, and solar power sources) to regional power grid corporations, and the manufacturing of power-related equipment. 5. Corporate and Other Operating: This segment is responsible for research and development services, alongside other ancillary aluminum-related business activities. Additionally, CHALCO engages in the acquisition, production, and distribution of bauxite mines and limestone ore. The company also offers engineering project management services and conducts significant import and export activities.