underground mining

Bunker Hill Mining Corp. (TSX: BNKR | OTCQB: BHLL) is a Nevada-registered, SEC-compliant US mining company focused on revitalizing and optimizing closed or distressed mining assets across North America. Its cornerstone asset is the historic Bunker Hill silver-lead-zinc Mine in Kellogg, Idaho, which it aims to restart as a modern, low-emission, long-life underground operation, targeting production in the first half of 2026 at an initial rate of 1,800 tonnes per day.

3D geologic modelling and digitization of historical dataexploration and drillingmine restart and redevelopmenttoll millingtruck haulage

Compass Minerals produces salt, plant nutrients and magnesium chloride for distribution primarily in North America. The company produces rock salt from underground mines using drill-and-blast and continuous mining techniques, and produces salt, sulfate of potash (SOP) and magnesium chloride via solar evaporation at the Great Salt Lake in Ogden, Utah. It states it is the largest SOP and magnesium chloride producer in North America and operates the largest rock salt mine in the world in Goderich, Ontario.

blendingcontinuous miningdrill-and-blast miningmechanical evaporationpackagingsolar evaporation

Titan Mining Corporation is an Augusta Group company that produces zinc concentrate at its 100%-owned Empire State Mine in St. Lawrence County, New York State. It is also a natural flake graphite producer, described as the USA's first end-to-end producer of natural flake graphite in 70 years, producing graphite concentrate at a demonstration facility. The company aims to deliver shareholder value through operational excellence, development and exploration of critical minerals assets.

explorationgraphite processingmilling (5,000 tpd mill)mine development