Rio Tinto plc, a mining and metals company, explores for, develops, produces, and processes minerals and metals worldwide. It finds, mines, and processes mineral resources, including aluminum, copper, diamonds, gold, industrial minerals (borates, titanium dioxide, and salt), iron ore, thermal and metallurgical coal, and uranium, as well as sulphuric acid, rhenium, lead carbonate, and selenium. The company was founded in 1873 and is headquartered in London, the United Kingdom. Rio Tinto plc operates as a subsidiary of Rio Tinto Group.