CITIC Resources Holdings Limited, an investment holding company, engages in the exploration, development, and production of oil and coal, investments in bauxite mining, alumina refinery, aluminium smelting, and oil and gas trading. The company operates through four segments: Aluminum Smelting, Coal, and Crude Oil, and Import and Export of Commodities. The Aluminum smelting segment operates a Portland aluminum smelter, which sources alumina and produces aluminum ingots in Australia. The Coal segment operates mines; and sells coal in Australia. The Crude Oil segment explores, develops, and operates oilfields, as well as sells crude oil in Indonesia and China. The Import and Export of Commodities segment exports various commodity products; and imports other commodities, and manufactured goods. It also engages in financing; Aluminium smelting; Mining and production of coal; Mining and production of coal; oil technology development; and property holding activities, as well as provides consulting and management services. It operates in Mainland China, Australia, Europe, other Asian countries, and internationally. The company was incorporated in 1997 and is headquartered in Kowloon, Hong Kong.