Teck Resources Limited engages in exploring for, acquiring, developing, and producing natural resources in Asia, Europe, and North America. The company operates through Steelmaking Coal, Copper, Zinc, and Energy segments. Its principal products include copper, zinc, steelmaking coal, and blended bitumen. The company also produces lead, silver, and molybdenum; and various specialty and other metals, chemicals, and fertilizers. In addition, it explores for gold. The company was formerly known as Teck Cominco Limited and changed its name to Teck Resources Limited in April 2009. The company was founded in 1913 and is headquartered in Vancouver, Canada.

Hecla Mining Company, together with its subsidiaries, provides precious and base metal properties in the United States, Canada, Japan, Korea, and China. The company mines for silver, gold, lead, and zinc concentrates, as well as carbon material containing silver and gold for custom smelters, metal traders, and third-party processors; and doré containing silver and gold. It flagship project is the Greens Creek mine located on Admiralty Island in southeast Alaska. Hecla Mining Company was incorporated in 1891 and is headquartered in Coeur d'Alene, Idaho.

SSR Mining Inc., together with its subsidiaries, engages in the operation, acquisition, exploration, and development of precious metal resource properties in the United States, Türkiye, Canada, and Argentina. The company explores for gold doré, copper, silver, lead, and zinc deposits. Its mines include the Çöpler, located in Erzincan province, Turkey; the Marigold, located in Nevada, the United States; the Seabee, located in Saskatchewan, Canada; and the Puna, located in Jujuy province, Argentina. The company was formerly known as Silver Standard Resources Inc. and changed its name to SSR Mining Inc. in August 2017. SSR Mining Inc. was incorporated in 1946 and is based in Denver, Colorado.

Gulf Resources, Inc., through its subsidiaries, engages in the manufacture and trading of bromine and crude salt, chemical products, and natural gas in the People's Republic of China. The company operates through four segments: Bromine, Crude Salt, Chemical Products, and Natural Gas segments. It also provides bromine for use in bromine compounds, intermediates in organic synthesis, brominated flame retardants, fumigants, water purification compounds, dyes, medicines, and disinfectants. In addition, the company offers crude salt for use as a material in alkali and chlorine alkali production for use in the chemical, food and beverage, and other industries. Further, it manufactures and sells chemical products for use in oil and gas field exploration, oil and gas distribution, oil field drilling, papermaking chemical agents, and inorganic chemicals, as well as materials that are used for human and animal antibiotics. Gulf Resources, Inc. is based in Shouguang, the People's Republic of China.

Silvercorp Metals Inc., together with its subsidiaries, engages in the acquisition, exploration, development, and mining of mineral properties. The company primarily explores for silver, gold, lead, and zinc metals. It holds interest mines located in the Henan Province, Guangdong Province, and Hunan Province in China. The company was formerly known as SKN Resources Ltd. and changed its name to Silvercorp Metals Inc. in May 2005. Silvercorp Metals Inc. is headquartered in Vancouver, Canada.

EMX Royalty Corporation, together with its subsidiaries, explores for and generates royalties from metals and minerals properties. It explores gold, silver, platinum, palladium, copper, lead, zinc, manganese, nickel, cobalt, molybdenum, and iron deposits, as well as battery, precious, and base metals. The company's royalty and exploration portfolio primarily consist of properties in North America, Türkiye, Europe, Australia, Latin America, Morocco, and Australia. The company was formerly known as Eurasian Minerals Inc. and changed its name to EMX Royalty Corporation in July 2017. EMX Royalty Corporation is headquartered in Vancouver, Canada.

Northern Dynasty Minerals Ltd. engages in the exploration of mineral properties in the United States. The company explores for copper, gold, molybdenum, silver, and rhenium deposits. It holds 100% interest in the Pebble Copper-Gold-Molybdenum-Silver-Rhenium project comprising 1,840 mineral claims that covers an area of approximately 274 square miles located in southwest Alaska, the United States. The company was formerly known as Northern Dynasty Explorations Ltd. and changed its name to Northern Dynasty Minerals Ltd. in October 1997. Northern Dynasty Minerals Ltd. was incorporated in 1983 and is headquartered in Vancouver, Canada.

Avino Silver & Gold Mines Ltd., together with its subsidiaries, engages in the acquisition, exploration, and advancement of mineral properties in Canada. It primarily explores for silver, gold, and copper deposits. The company owns interests in 42 mineral claims and four leased mineral claims, including Avino mine area property comprising four exploration concessions covering 154.4 hectares, 24 exploitation concessions covering 1,284.7 hectares, and one leased exploitation concession covering 98.83 hectares; Gomez Palacio property consists of nine exploration concessions covering 2,549 hectares; and Unification La Platosa properties, which include three leased concessions located in the state of Durango, Mexico. It also owns 100% interests in the Minto and Olympic-Kelvin properties located in British Columbia, Canada; and 14 quartz leases in Eagle property located in the Mayo Mining Division of Yukon, Canada. The company was incorporated in 1968 and is headquartered in Vancouver, Canada.