US Antimony Files First S-K 1300 Nolan Creek Report: $314M M&I Resource, Mining Underway
UAMY sits 16% above its 52-week low of $2.64.
Summary
USAC filed its first SEC-compliant technical report on Nolan Creek, Alaska, showing 53,616 tons of Measured & Indicated material at 26.27% antimony and 0.372 oz/ton gold, and said underground mining and a ~1,000-ton bulk sample shipment to its Montana mill have begun.
Key Events · Product Development and Regulatory · UAMY
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First S-K 1300 Report on Nolan Creek
The Technical Report Summary, prepared by Qualified Person Thomas K. Bundtzen, covers the Alaska gold-antimony property USAC bought at a Trustee's auction on January 30, 2026 for $1.3M.
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Measured & Indicated: 53,616 Tons at 26.27% Sb
Contained metal is 14,089 tons antimony and 19,968 oz gold at 0.372 oz/ton; Inferred adds 32,459 tons at 14.29% Sb and 0.362 oz/ton Au (4,640.8 tons Sb, 11,752.5 oz Au).
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Company Pegs In-Situ Value at $313.7M
At $4,000/oz gold and $8.30/lb antimony, USAC values M&I at $313.7M ($233.9M antimony + $79.9M gold) and Inferred at $125.2M, before mining, transport, processing and recovery.
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No Reserves, Costs or Economics Yet
The report contains no mineral reserve estimate, no mining method, no capital or operating costs and no economic analysis; the 2011-era Nolan camp is described as in disrepair and unusable.
Analysis · UAMY · Manufacturing
For the first time, USAC has put hard numbers on its January 2026 Nolan Creek acquisition: 53,616 short tons of Measured & Indicated lode material at 26.27% antimony and 0.372 oz/ton gold, plus 32,459 tons Inferred. Under the company's own assumptions of $4,000/oz gold and $8.30/lb antimony, that translates to $313.7M of in-situ M&I value and $125.2M inferred — before mining, transport, processing and recovery. Keep in mind this is an Initial Assessment only: no reserves, no mining method, no capital or operating costs, no economic analysis, and the 2011-era camp is unusable. The more concrete news is operational — a contractor is underground and roughly 1,000 tons of bulk sample is headed to the Radersburg, Montana mill for November-December processing, the first Alaska antimony to run through USAC's own circuit. That is a test of metallurgy and logistics, not yet production. Tonnage is small; the value sits in very high grades and in antimony's strategic price.
How filings like this one have moved
In the 30 days to Oct 26, 2026, 36.2% of the 898 measured filings Wiseek scored 8 moved their stock by 5% or more by the next session's close. The median move was -0.75%. These are measured outcomes after filings of this importance, not a forecast for this one.
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At the time of this filing, UAMY was trading at $3.07 on NYSE in the Manufacturing sector, with a market capitalization of approximately $458M. The 52-week trading range was $2.64 to $12.64. This filing was assessed with positive market sentiment and an importance score of 8 out of 10.