Bunker Hill Mining
OTCMKTS:BHLLBunker Hill Mining Corp., a mineral exploration company, engages in the acquisition, development, and mining of mineral properties in Canada and the United States. It focuses on exploring for zinc, lead, and silver ores. It holds an option agreement to acquire interest in the Bunker Hill mine located in the Silver Valley, Idaho. The company was formerly known as Liberty Silver Corp. and changed its name to Bunker Hill Mining Corp. in September 2017. Bunker Hill Mining Corp. was incorporated in 2007 and is headquartered in Toronto, Canada.
Lithium
OTCMKTS:LTUMLithium Corporation, an exploration stage mining company, engages in the identification, acquisition, and exploration of metals and minerals in Nevada and British Columbia. It explores for lithium/boron/potassium, graphite, gold, and silver deposits, as well as titanium and rare earth elements. The company was formerly known as Utalk Communications Inc. and changed its name to Lithium Corporation in September 2009. Lithium Corporation was incorporated in 2007 and is headquartered in Elko, Nevada.
Quaterra Resources
OTCMKTS:QTRRFQuaterra Resources, Inc. engages in the acquisition, exploration, and development of mineral properties. It holds interest in the Groundhog and Quaterra's Yerington Copper projects. The company was founded on May 11, 1993 and is headquartered in Vancouver, Canada.
Trevali Mining
OTCMKTS:TREVFTrevali Mining Corporation, a base-metals mining company, engages in the acquisition, exploration, development of, and production from mineral properties. It primarily explores for zinc, lead, silver, copper, and gold deposits. The company's operational assets include the 90%-owned Perkoa Mine in Burkina Faso; 90%-owned Rosh Pinah Mine in Namibia; and Caribou Mine in northern New Brunswick, Canada. It also holds interests in the Halfmile, Stratmat, and Restigouche properties situated in New Brunswick, Canada; Gergarub project in Namibia; and Ruttan Mine located in northern Manitoba, Canada. In addition, the company has an option to acquire a 100% interest in the Heath Steele deposit located in New Brunswick, Canada. Trevali Mining Corporation was formerly known as Trevali Resources Corp. and changed its name to Trevali Mining Corporation in April 2011. The company was incorporated in 1964 and is headquartered in Vancouver, Canada.