United States Antimony (UAMY): Sole US Producer at 32x Revenue -- Monopoly or Mirage?
A 267% antimony price surge, a $245M defense contract, and $1.34B market cap for a company that never exceeded $15M in annual revenue. Our 6-lens committee examined the gap between narrative and numbers.
NYSE uplisted March 11, 2026
Mining sector median: 1-3x
$6/lb to $22/lb (H1 2024 vs H1 2025)
26.53M shares sold short
United States Antimony Corporation has transformed from an obscure micro-cap mining stock into a $1.34B national security darling. The catalyst: China banned antimony exports in September 2024, and USAC happens to operate the only significant antimony smelter in North America.
The company secured a $245M sole-source DLA contract for the National Defense Stockpile, a $27M Department of War expansion award, and a $106.7M industrial contract. Revenue surged 182% in the first nine months of 2025. Management guides $125M for 2026, nearly triple the $40-43M 2025 guidance.
The question is whether this is a genuine transformation or a commodity price mirage. Our committee ran 6 lenses, assessed 10 signals, and resolved 16 debates to find out.
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Signal Assessments
Revenue growth of 182% is overwhelmingly price-driven (267% antimony price increase). Volume growth was secondary.
$1.34B market cap at ~32x revenue guidance. Mining companies typically trade at 1-3x P/S.
Stock prices in flawless execution across Montana expansion, DLA ramp, Alaska supply, and sustained high pricing.
Simultaneous expansion across 4 jurisdictions (MT, AK, MX, Ontario) from a $14.9M revenue base.
Sole-source monopoly is real but time-limited. Perpetua Resources expects antimony production 2027-2028.
Near-zero debt ($262K) provides cushion, but expansion capital needs likely require equity dilution.
Federal policy is structural tailwind (DPA, critical minerals). Alaska state-level permitting faces environmental opposition.
10-K/A amendment, 10x non-cash expense surge ($5.18M), and 131% asset growth in 9 months create reporting opacity.
Revenue heavily dependent on government contracts (DLA $245M, DoW $27M). Policy or trade changes create risk.
CEO-centric management model. Institutional ownership grew to 24%. Limited data without DEF14A.
Key Findings
Revenue Surge Is 267% Price, Not Volume
Average antimony price jumped from $6/lb to $22/lb between H1 2024 and H1 2025. The antimony segment revenue increased 203%. While processing volumes did increase, the dominant driver was commodity pricing. Antimony prices have been declining from the July 2025 peak of $59,750/mt as China eases its export ban (suspended through November 2026).
The Sole-Source Monopoly Is Genuine -- With an Expiration Date
USAC operates the only significant antimony smelter in North America, confirmed by the DLA awarding a sole-source contract. This position has survived 55 years including periods of very low antimony prices. The processing expertise involves tacit knowledge that management describes as having "a lot of art to the science." However, Perpetua Resources expects first antimony production from the Stibnite project in 2027-2028, and Sunshine Silver Mining is building a US refinery. The moat has a definable expiration window.
$125M 2026 Guidance Has No Historical Precedent
Management guides $40-43M for FY2025 and $125M for 2026 -- a 190% increase. This company never produced annual revenue above $15M before 2025. The 9-month 2025 annualized pace of ~$34.9M suggests hitting even the low end of 2025 guidance requires a strong Q4. The $125M target requires simultaneous success across Montana expansion (400% capacity increase), DLA contract delivery acceleration, Alaska ore supply commencement, international procurement scaling, and sustained high antimony pricing.
Balance Sheet Is Surprisingly Clean for a Mining Expansion
Only $262K in long-term debt is genuinely unusual for a mining company in expansion mode. Cash and investments of ~$38.5M provide meaningful buffer. However, operating losses of $4.1M (9mo 2025) and heavy capex ($16M+ YTD) create a burn rate that likely requires additional equity capital. Warrant exercises already provided $7.3M in H1 2025, signaling dilution as the primary funding mechanism.
Where Models Disagreed
Revenue Durability: CONDITIONAL vs. FRAGILE
CONDITIONAL -- the $245M sole-source DLA contract provides a durable revenue floor independent of commodity pricing.
FRAGILE -- contract value is a ceiling, delivery orders pace revenue, and the majority of growth depends on commodity pricing.
Narrative Gap: STRETCHED vs. DISCONNECTED
STRETCHED -- the national security premium is real and may persist given sole-source designation and government backing.
DISCONNECTED -- at 32x revenue with net losses and commodity dependency, the stock has decoupled from fundamental value.
Moat Durability: DEFENSIBLE vs. CONDITIONAL
DEFENSIBLE -- 55 years of tacit knowledge, established government relationships, and vertical integration persist even after competitors enter.
CONDITIONAL -- the moat expires when Perpetua begins production; government will diversify suppliers for national security.
Cross-Lens Reinforcements
Revenue fragility is price-driven
Gravy Gauge and Myth Meter independently converge: the 267% antimony price increase drives the story, creating vulnerability to normalization.
Execution risk is the binding constraint
Stress Scanner and Gravy Gauge agree: simultaneous multi-geography expansion from a small operational base creates concentrated risk.
Sole-source position is real but time-limited
Moat Mapper confirms the monopoly; Myth Meter notes the market prices permanence into a temporary advantage. The 2027-2028 competitor timeline is the key variable.
What to Watch
Below $40M (low-end guidance) would undermine the $125M 2026 narrative and trigger re-assessment of REVENUE_DURABILITY. The 9-month annualized pace of ~$34.9M suggests Q4 must deliver at least $13.8M to hit the floor.
Any reduction or withdrawal of the $125M 2026 guidance would signal the market that the growth narrative is faltering. This is the linchpin of the bull case.
Sustained decline below $25,000/mt would compress both revenue and the narrative premium. China's export ban is suspended through November 2026, and Southeast Asian supply is growing.
The 400% capacity increase at Thompson Falls is the single most important execution milestone. Delay beyond Q1 2026 cascades to all revenue projections.
Stibnite Gold Project construction milestones signal the moat erosion timeline. UAMY's 2-3 year window of exclusivity depends on Perpetua's progress.
The Bottom Line
HIGHER SCRUTINY
UAMY occupies a genuinely unique strategic position as the sole US antimony producer with 55 years of expertise and $245M in government contracts. The critical minerals tailwind is real and bipartisan. However, at 32x revenue with FRAGILE (price-driven) revenue durability, a DISCONNECTED narrative-reality gap, and STRETCHED capital deployment, the stock prices in perfection across too many simultaneous variables. The moat is real but time-limited. The guidance is aspirational, not trend-based. FY2025 earnings (March 19) will be the next major data point.
Path to More Favorable Assessment
- • FY2025 revenue meets or exceeds $43M guidance
- • Montana expansion reaches target throughput
- • Alaska ore delivery commences
- • Q1 2026 revenue pace supports $125M annual target
- • Clean FY2025 10-K with unqualified audit opinion
Path to Less Favorable Assessment
- • FY2025 revenue misses $40M low-end guidance
- • Management reduces or withdraws $125M 2026 guidance
- • Antimony price declines below $15/lb sustained
- • Material weakness in internal controls
- • Additional equity dilution above 10%
This analysis is for educational purposes only -- it is not a recommendation to buy or sell any security.
Public Sources Used
- • Annual Report (10-K/A) -- FY2024
- • Quarterly Reports (10-Q) -- Q1-Q3 2025, Q3 2024
- • Current Reports (8-K) -- November 2025 through March 2026
- • Q3 2025 Earnings Call Transcript
- • Q2 2025 Earnings Call Transcript
- • Q4 2024 Earnings Call Transcript
- • Antimony Market Outlook 2026 -- Fastmarkets
- • UAMY Company Profile -- B2i Digital
Full Analysis with Signal Breakdowns
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