Trig Minerals outlines Antimony Canyon project, says U.S. supply deficit drives plans

Natural Resources, Agriculture and Environment Interim Committee · November 19, 2025

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Summary

Trig Minerals presented the Antimony Canyon (Antimony, UT) project, saying the deposit could supply significant U.S. antimony demand, with plans for in‑state smelting; company estimates a 10‑year mine life on patented claims and previewed near‑term drilling and local hiring plans.

Andre Boisen, managing director of Trig Minerals, briefed the committee on the Antimony Canyon project in Garfield County, describing it as a high‑grade deposit the company hopes to develop into a vertically integrated U.S. supply chain.

Boisen said U.S. demand for antimony is roughly 25,000 tons of metal per year and the country currently relies heavily on foreign producers. "They actually produce nothing in the USA," he told the committee, adding that a small smelter in Montana produces about 1,200 tons annually. He said Trig's patented claims alone contain material the company estimates could support a minimum 10‑year mine life.

The company is seeking a drilling permit from the Division of Oil, Gas and Mining and plans near‑term validation drilling. Boisen said the firm aims to move downstream—processing and smelting the metal within the U.S.—with a likely smelter location near Cedar City and coordination with the Iron Springs Inland Port.

Boisen gave preliminary economic and employment estimates: roughly 150–200 permanent mine jobs and 120–130 smelter positions, plus contractors and suppliers. He estimated trucking to Cedar City might involve about 20 trucks a week for ore movements in early operation.

Committee members asked about land status (patented claims vs. Forest Service), local outreach and training partnerships (Southern Utah University and Snow College were mentioned as training partners or referrals). Boisen said the company has held town halls and received local support, though the presenter acknowledged at least one family opposed the project.

Boisen said the company plans to rebrand as "American Tungsten Antimony" to clarify its business focus, and thanked the committee for the opportunity to present.