Rio Tinto Group engages in exploring, mining, and processing mineral resources worldwide. The company operates through Iron Ore, Aluminium, Copper, and Minerals Segments. The Iron Ore segment engages in the iron ore mining, and salt and gypsum production in Western Australia. The Aluminum segment is involved in bauxite mining; alumina refining; and aluminium smelting. The Copper segment engages in mining and refining of copper, gold, silver, molybdenum, and other by-products and exploration activities. The Minerals segment is involved in mining and processing of borates, titanium dioxide feedstock, and iron concentrate and pellets; diamond mining, sorting, and marketing; and development projects for battery materials, such as lithium. It also owns and operates open pit and underground mines; and refineries, smelters, processing plants and power, and shipping facilities. Rio Tinto Group was founded in 1873 and is headquartered in London, the United Kingdom.

Vale S.A., together with its subsidiaries, produces and sells iron ore, iron ore pellets, nickel, and copper in Brazil and internationally. The company operates through Iron Solutions and Energy Transition Materials segments. The Iron Solutions segment produces and extracts iron ore and pellets, and other ferrous products; and provides related logistic services. The Energy Transition Materials segment produces and extracts nickel; and its by-products, such as gold, silver, cobalt, precious metals, and others, as well as copper used in the construction sector to produce pipes and electrical wires. The company was formerly known as Companhia Vale do Rio Doce and changed its name to Vale S.A. in May 2009. Vale S.A. was founded in 1942 and is headquartered in Rio De Janeiro, Brazil.

Ero Copper Corp. engages in the exploration, development, and production of mining projects in Brazil. The company is involved in the production and sale of copper concentrate from the Caraíba operations located in the Curaçá Valley, northeastern Bahia state, Brazil, as well as gold and silver by-products. It also holds 100% interests in the Tucumã project, a copper development project located within southeastern Pará state; and the Xavantina Operations located in Mato Grosso state. Ero Copper Corp. was incorporated in 2016 and is headquartered in Vancouver, Canada.

Sigma Lithium Corporation engages in the exploration and development of lithium deposits in Brazil. It holds a 100% interest in the Grota do Cirilo, Genipapo, Santa Clara, and São José properties comprising 29 mineral rights covering an area of approximately 185 square kilometers located in the Araçuaí and Itinga regions of the state of Minas Gerais, Brazil. It serves lithium-ion battery supply chain for electric vehicle industries worldwide. The company was formerly known as Sigma Lithium Resources Corporation and changed its name to Sigma Lithium Corporation in July 2021. The company is headquartered in São Paulo, Brazil.

IperionX Limited engages in exploration and development of its mineral properties in the United States. The company holds a 100% interest in the critical minerals Titan project, which has the resource of titanium, rare earth, and zircon rich mineral sands covering approximately 11,054 acres of surface and associated mineral rights in Tennessee, the United States. It also produces titanium products made from scrap titanium at industrial pilot facility in Utah, United States. IperionX Limited operates titanium business to support various industries, including consumer electronics, aerospace, defense, medical, bicycles, additive manufacturing, hydrogen, and automotive. The company was formerly known as Hyperion Metals Limited and changed its name to IperionX Limited in February 2022. IperionX Limited was incorporated in 2017 and is headquartered in Charlotte, North Carolina.

Lithium Americas (Argentina) Corp. operates as a resource company. The company explores for lithium deposits. The company owns interests in the Cauchari-Olaroz project located in Jujuy province of Argentina. It also has a pipeline of development and exploration stage projects located in Salta Province in northwestern Argentina, including the 100% Pastos Grandes project; and the 65% owned Sal de la Puna project. In addition, it owns 100% interest in the Antofalla Project located in the Province of Catamarca, Argentina. Lithium Americas (Argentina) Corp. was incorporated in 2007 is headquartered in Vancouver, Canada.

American Lithium Corp., an exploration and development stage company, engages in the acquisition, exploration, and development of mineral properties in North and South America. Its properties include the TLC Lithium Project located in the town of Tonopah, Nevada; and the Falchani Lithium project and the Macusani Uranium project located in Puno, Peru. The company was formerly known as Menika Mining Ltd. and changed its name to American Lithium Corp. in April 2016. American Lithium Corp. was incorporated in 1974 and is headquartered in Vancouver, Canada.

GoldMining Inc., a mineral exploration company, focuses on the acquisition, exploration, and development of gold assets in the Americas. It operates a diversified portfolio of resource-stage gold and gold-copper projects in Canada, the United States, Brazil, Colombia, and Peru. The company's principal projects include La Mina Gold Project and Titiribi Gold-Copper Project located in Colombia; Whistler Gold-Copper Project located in Alaska, the United States; and São Jorge Gold Project located in the State of Pará, Brazil. The company was formerly known as Brazil Resources Inc. and changed its name to GoldMining Inc. in December 2016. The company was incorporated in 2009 and is headquartered in Vancouver, Canada.