John Patrick Kiddle

Founded in 1988, Rio Tinto Escondida Ltd. is a subsidiary of Rio Tinto Plc that mines copper ores. The company is based in Hamilton, Bermuda.

RioTinto Namibian Holdings Ltd. is an investment holding company. The company is headquartered in London, the United Kingdom.

Founded in 1970, Rio Tinto European Holdings Ltd. is a leading mining group that focuses on finding, mining, and processing mineral resources. Part of Rio Tinto Plc, the company is based in London, UK. Rio Tinto's mining operations are dedicated to discovering and processing mineral resources.

Founded in 1995, Rio Tinto Indonesian Holdings Ltd. is a British company that functions as an investment holding company. Part of Rio Tinto Plc, the company is based in London, UK.

Part of Rio Tinto Plc, Rio Tinto Peru Ltd. is an investment holding British company. The company is based in London, UK and was founded in 2005.

Part of Rio Tinto Plc, Rio Tinto Uranium Ltd. is a British company that manufactures nonmetallic mineral products. The company is based in London, UK.

Thos. W. Ward Ltd. manufactures steel frame buildings, bridges, collieries, steel works equipment and furnaces. The company was founded on May 19, 1904 and is headquartered in London, the United Kingdom.

Rio Tinto Australian Holdings Ltd. engages in mining and exploration of copper ores. The company is headquartered in London, the United Kingdom.

Rio Tinto Overseas Holdings Ltd. operates as a holding company. The company is headquartered in London, the United Kingdom.

Founded in 2007, RTA Holdco 4 Ltd. is a subsidiary of Rio Tinto Plc and functions as an investment holding British company. The company is based in London, UK.

Founded in 2007, RTA Holdco 1 Ltd. is a subsidiary of Rio Tinto Plc and functions as an investment holding British company. The company is based in London, UK.

Founded in 2012, Rio Tinto Technological Resources UK Ltd. is a subsidiary of Rio Tinto Plc. The company is based in London, UK and specializes in researching and developing step change technology.

RIO Tinto Diamonds Ltd. engages in diamond exploration, mining, and sales and marketing. The company was founded on October 21, 2004 and is headquartered in London, the United Kingdom.

Natural Diamond Council Ltd. is a global organization that aims to inspire and educate consumers about natural diamonds through its platform. The non-profit company is based in London, UK. The platform covers various topics related to natural diamonds, including celebrities, pop culture, jewelry trends, and buying guides. The organization supports the natural diamond industry by promoting transparency and providing insights on its progress and commitments. The Natural Diamond Council operates in several continents, including North America, Asia, Africa, and Europe. The British company was founded in 2015, and David Kellie has been the CEO of the company since 2019.

The Institute of Corporate Directors is a not-for-profit, member-based association that serves as a resource and voice for directors and boards. The non-profit company is based in Toronto, Canada, and has subsidiaries in Canada. The ICD provides thought leadership through various publications and is a unified voice for directors. The Canadian company was founded by Brian J. Gibson, and Rahul K. Bhardwaj has been the CEO of the company since 2016.

Rio Tinto Metals Ltd. is a mining exploration, and manufactures metal products. It produces aluminium, copper, diamonds, minerals, and thermal coke. The company is headquartered in London, the United Kingdom.

Founded in 1938, Alcan Chemicals Ltd. is a British dormant company that operates as a subsidiary of Rio Tinto Plc. The company is based in London, UK.

Founded in 2018, IOC Sales Ltd. is a British trading company that engages in the trading of goods. Part of Rio Tinto Plc, the company is based in London, UK.

Founded in 1972, Alcan Farms Ltd. is a subsidiary of Rio Tinto Plc that engages in farming activities. The company is based in London, UK.

Anglesey Aluminium Metal Ltd. manufactures aluminium. The company was founded on June 30, 1967 and is headquartered in London, the United Kingdom.

ECL Contracts Ltd. provides external wall insulation services. The company is headquartered in Windsor, the United Kingdom.

CH4 Energy Ltd. specializes in gas production and the exploitation. The company is headquartered in Windsor, the United Kingdom.

Centrica Production Ltd. acquires, develops and produces oil and gas. The firm engages in exploration, development and production of crude petroleum and natural gas. The company was founded by Laurence William Kinch, Mike Fleming and Bruce Alan Ian Dingwall in 1996 and is headquartered in Aberdeen, the United Kingdom.

Anglo American Marketing Ltd. provides natural resource mining services. Its portfolio of mining assets and natural resources include platinum group metals and diamonds with significant interests in copper, iron ore, metallurgical coal, nickel and thermal coal. The firm operates through its offices located in Africa, South and North America, Australia and Asia. The company was founded on March 7, 1946 and is headquartered in London, the United Kingdom.

Part of Rio Tinto Ltd., Rio Tinto Canada, Inc. is a Canadian company that manufactures iron ore for steel, aluminum for cars, copper for wind turbines, and diamonds. The company is based in Montréal, Canada. Jakob Stausholm has been the CEO of the company since 2018.

Part of Rio Tinto Plc, Rio Tinto Western Holdings Ltd. functions as an investment holding British company. The company is based in London, UK.

Rio Tinto South East Asia Ltd. functions as credit agency. The company is headquartered in London, the United Kingdom.

Oyu Tolgoi LLC engages in the exploration and development of mineral reserves. It focuses on copper and gold mining. The company was founded in 2012 and is headquartered in Ulaanbaatar, Mongolia.