Rio Tinto plc engages in finding, mining, and processing mineral resources worldwide. The company is involved in the mining and production of aluminum products, including bauxite, alumina, and aluminum; copper, gold, silver, and molybdenum; diamonds, borates, salt, and titanium dioxide feedstocks, as well as purity iron, metal powders, zircon, and rutile; thermal and coking coal, and uranium; and iron ore. It primarily operates in China, Japan, other countries in Asia, the United States, the United Kingdom, Europe, Canada, and Australia. Rio Tinto plc was founded in 1873 and is headquartered in London, the United Kingdom.