U.S. Materials Sustainable Track Record

Hecla Mining

Market Cap: US$11.8b

Provides precious and base metals in the United States, Canada, Japan, Korea, China, and internationally.

Agnico Eagle Mines

Market Cap: US$91.4b

A gold mining company, engages in the exploration, development, and production of precious metals.

AngloGold Ashanti

Market Cap: US$49.6b

Operates as a gold mining company in Africa, Australia, and the Americas.

Compañía de Minas BuenaventuraA

Market Cap: US$8.8b

Engages in the exploration, development, construction, and operation of mines in Peru, the Americas, Europe, and Asia.

Flotek Industries

Market Cap: US$1.4b

Operates as a chemical and data analytics company in the United States, the United Arab Emirates, and internationally.

Kaiser Aluminum

Market Cap: US$3.0b

Manufactures and sells semi-fabricated specialty aluminum mill products.

Crown Holdings

Market Cap: US$12.9b

Engages in the packaging business in the United States and internationally.

Southern Copper

Market Cap: US$167.0b

Engages in mining, exploring, smelting, and refining copper and other minerals in Mexico, the United States, Peru, Brazil, Chile, and Other American countries.

Century Aluminum

Market Cap: US$5.1b

Produces primary aluminum and alumina in the United States and Iceland.

Caledonia Mining

Market Cap: US$439.5m

Engages in the exploration, development, and production of gold in Zimbabwe.

DRDGOLD

Market Cap: US$2.1b

A gold mining company, engages in the extraction of gold from the retreatment of surface mine tailings in South Africa.

Newmont

Market Cap: US$123.2b

Operates as a gold producer.

Xtra-Gold Resources

Market Cap: US$88.4m

Operates as a gold exploration company in Ghana.