CITIC Resources Holdings Limited, an investment holding company, engages in the exploration, development, and production of oil and coal in Mainland China, Australia, Europe, other Asian countries, and internationally. The company operates in four segments: Aluminum Smelting, Coal, 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.