Sigma Lithium Corporation engages in the exploration and development of lithium deposits in Brazil. It holds 100% interest in the Grota do Cirilo, Genipapo, Santa Clara, and São José properties comprising 27 mineral rights covering an area of approximately 191 square kilometers located in the Araçuaí and Itinga regions of the state of Minas Gerais, Brazil.

MP Materials Corp. owns and operates rare earth mining and processing facilities. It owns and operates the Mountain Pass Rare Earth mine located in the Western Hemisphere.

Piedmont Lithium Inc., an exploration stage company, engages in the exploration and development of resource projects in the United States. The company primarily holds a 100% interest in the Carolina Lithium Project that include an area of approximately 3,116 acres located within the Carolina Tin-Spodumene Belt situated to the west of Charlotte, North Carolina in the United States.

NioCorp Developments Ltd. engages in the exploration and development of mineral deposits in North America. It owns and develops the Elk Creek niobium/scandium/titanium project that owns one 226.43-acre parcel of land and associated mineral rights, and an additional 40 acres of mineral rights, as well as an optioned land package that covers an area of 1,396 acres located in Johnson County, southeast Nebraska.

Teck Resources Limited engages in exploring for, acquiring, developing, and producing natural resources in Asia, Europe, and North America. It operates through Steelmaking Coal, Copper, Zinc, Energy, and Corporate segments.

Vale S.A., together with its subsidiaries, produces and sells iron ore, iron ore pellets, nickel, and copper in Brazil and internationally.

BHP Group Limited operates as a resources company in Australia, Europe, China, Japan, India, South Korea, the rest of Asia, North America, South America, and internationally.

Rio Tinto Group engages in exploring, mining, and processing mineral resources worldwide. The company operates through Iron Ore, Aluminium, Copper, and Minerals Segments.