Rio Tinto Limited engages in finding, mining, and processing mineral resources primarily in Australia and North America. It offers aluminum, copper, diamonds, gold, borates, titanium dioxide, salt, iron ore, thermal and metallurgical coal, uranium, silver, molybdenum, sulphuric acid, rhenium, lead carbonate, selenium, ductile iron, steel billets, metal powders, and zircon. The company also operates in Asia, Europe, Africa, and South America. Rio Tinto Limited was incorporated in 1959 and is headquartered in Melbourne, Australia.