The latest news release reports Americas Gold and Silver Corporation’s achievement of 99%+ antimony extraction from copper concentrates at its Galena Complex in Idaho using proprietary Alkaline Selective Leaching (ASL) hydrometallurgical technology. The breakthrough transforms antimony from an unpaid by-product into a potential revenue stream and positions the company as a potential domestic antimony supplier—a critical mineral for U.S. national security.
The Metallurgical Breakthrough
Americas achieved over 99% extraction of antimony from copper flotation concentrates through two-phase testing. The first phase used flotation recovery to process tetrahedrite ore (copper/silver antimony sulfide mineral grading 1% antimony), achieving 90-96% recovery rates. The second phase employed Allihies Engineering’s proprietary ASL technology on the resulting copper concentrate, successfully leaching nearly 100% of contained antimony while retaining copper, silver, and iron in the concentrate.
Key insight: This represents a practical commercialization of proven industrial technology—the ASL process is an optimized version of methods used for 60 years by Sunshine Mining at its antimony plant (operational until 2002). The breakthrough unlocks value from material previously considered economically insignificant due to insufficient concentration for smelter acceptance.
Test Results and Performance Data
The ASL hydrometallurgical leaching tests produced two samples with exceptional performance:
| Metric | Sample 1 | Sample 2 |
|---|---|---|
| Feed Antimony (%) | 18.7 | 19 |
| Antimony Recovery to Solution (%) | 99.8 | 99.7 |
| Gold Recovery (g/t) | 28.1 | 61.1 |
| Silver Retention (g/t) | 30,091 | 27,847 |
| Copper Retention (%) | Complete | Complete |
The extracted antimony can be processed into high-purity antimony metal, sodium antimonate, antimony oxide, and antimony sulfides—multiple marketable products from a single source.
Historical Production Context
Over 20 million pounds of antimony have been produced from the Galena Complex since 2001 based on smelter settlement sheets. Historical analysis reveals an approximate 0.69:1 ratio of antimony-to-copper in recovered concentrates. Recent assay results from ~1,000 drill samples of tetrahedrite veins confirm a 0.64:1 antimony-to-copper ratio, indicating substantial future antimony extraction potential as tetrahedrite ore becomes production focus.
| Production Period | Total Antimony Output (lbs) | Production Trend |
|---|---|---|
| 2000–2002 (High copper production) | ~5.9 million | Peak antimony recovery |
| 2003–2012 (Mixed concentrate types) | ~8.5 million | Moderate recovery |
| 2013–2024 (Lead concentrate focus) | ~5.8 million | Lower antimony grades |
Strategic Significance for U.S. Supply
Critical mineral status: Antimony, along with silver and copper, has been designated as critical to U.S. national security and economic resilience by federal authorities. China halted antimony exports to the U.S. on December 3, 2024, creating urgent domestic supply urgency. Americas is positioned to become the first U.S. antimony end-product supplier in 25 years, directly addressing this geopolitical supply gap.
Unique competitive position: Americas claims to be the only U.S.-based mining company simultaneously producing extractable silver, copper, and antimony—three minerals identified as critical by the U.S. government. Production from the Silver Valley of Idaho reinforces domestic supply resilience.
Commercial Path Forward
The company’s technical team is conducting detailed technical and trade-off studies to develop a commercialization plan. Remaining development phases likely include:
- Scale-up testing from laboratory to pilot plant scale
- Optimization of ASL process parameters for production volumes
- Permitting and environmental compliance review
- Capital cost estimation for antimony recovery infrastructure
- Market development and customer qualification
Management perspective: CEO Paul André Huet emphasised that current Rotterdam antimony prices could “significantly enhance payable metal value” for shareholders, as the company currently receives minimal revenue for antimony in existing concentrates. This represents pure value creation from existing mine production.
Key Limitations and Uncertainties
Forward-looking statements in the release are subject to material risks including:
- Permitting and regulatory approval timelines remain uncertain
- Commodity price volatility (antimony, copper, silver) affects project economics
- Scale-up from bench-scale testing to commercial production involves technical and operational risks
- Global economic conditions and market demand for antimony products are subject to change
- Capital requirements and financing availability for infrastructure development are not finalized
The announcement represents proof-of-concept, not committed commercial production.
Americas Gold and Silver Corporation
Brief Overview
Americas Gold and Silver Corporation is a Toronto-based precious and critical metals mining company focused on North American production. The company is emerging as a premier silver and domestic antimony producer, operating core assets in both the United States and Mexico.
Corporate Snapshot
- Balance‑sheet strength: > $300 million cash‑equity foundation
- Silver exposure: ≈ 80 % of the portfolio
- U.S. antimony leader: 20 + million lb produced since 2001
Leadership Team
| Executive | Role | Experience |
|---|---|---|
| Paul Andre Huet | Chairman & CEO | 35 + years leading mining & capital‑markets |
| Mike Doolin | COO | 35 + years in operations |
| Warren Varga | CFO | 25 + years finance |
| Oliver Turner | EVP Corporate Dev. | 15 + years capital markets |
Portfolio at a Glance
- United States: Galena Complex (Idaho) – primary production; Crescent Mine (Idaho) – under development; Relief Canyon (Nevada) – care‑and‑maintenance.
- Mexico: Cosalá Operations (Sinaloa) – producing; San Felipe (Sonora) – development.
Geographic maps are shown in the slides but are summarised here for brevity.
Galena Complex – Resource Growth
| Rank | Project | Company | Avg. Ag Head Grade (g/t) |
|---|---|---|---|
| 1 | Keno Hill | Hecla | 994 |
| 2 | Galena Complex | Americas | 473 |
| 3 | Julcani | Buenaventura | 458 |
| 4 | Greens Creek | Hecla | 432 |
| 5 | Lucky Friday | Hecla | 446 |
The Galena Complex now sits among the world’s highest‑grade silver mines.
2025 Mineral Resource Summary (Oct 31 2025)
| Category | Moz Ag | Grade (g/t) |
|---|---|---|
| Proven & Probable | 16.3 ↑ 2 % | 482 ↑ 21 % |
| Measured & Indicated | 87.9 ↑ 19 % | 501 ↑ 21 % |
| Inferred | 105.7 ↑ 3 % | 498 ↑ 7 % |
5‑Year Resource Trend (2020‑2025)
| Year | Proven & Probable (Moz) | Measured & Indicated (Moz) | Inferred (Moz) | Ag Grade (g/t) |
|---|---|---|---|---|
| 2020 | 12 | 22 | 47 | 37 |
| 2021 | 10 | 38 | 64 | 64 |
| 2022 | 13 | 46 | 62 | 77 |
| 2023 | 11 | 44 | 61 | 73 |
| 2024 | 10 | 44 | 62 | 74 |
| 2025 | 16 | 88 | 106 | 482 |
2025 shows a +124 % grade jump and a > 200 % surge in Measured & Indicated ounces.
Production & Cost Guidance (2026)
| Metric | Target |
|---|---|
| Silver Production | 3.2 – 3.6 Moz |
| All‑in Sustaining Cost (AISC) | US$ 30 – 35 / oz |
| Sustaining Capital | US$ 30 – 40 M |
| Growth Capital | US$ 60 – 80 M |
| Exploration Capital | US$ 15 – 20 M |
Assumptions include steady staffing, timely permitting, and a MXN : US$ 20 : 1 exchange rate.
Mechanized Mining Upgrade
- Hoisting capacity: 2× increase; 10+ new underground equipment units.
- Long‑hole stoping: ≈ 1 m wide stope, enabling 12× faster cycle times.
- Productivity boost: +300 % over conventional underhand cut‑and‑fill methods.
Upgrade photos and impact diagrams are reproduced in the slides; the key figures are listed above.
Exploration Highlights
034 Vein (Idaho) – 0.5 m @ 4,458 g/t Ag, 3.31 % Cu, 1.5 % Sb
- Drill intercepts (true width) range from 0.49 m (1,632 g/t Ag) to 2.61 m (983 g/t Ag).
- Highlights the potential for a high‑grade, narrow vein system.
520 Vein – 1.1 m @ 619 g/t Ag, 1.1 % Cu, 0.65 % Sb
- Four holes defined a 150 × 150 m mineralized body, open in all directions.
- Key intercepts: 0.7 m @ 941 g/t Ag and 1.1 m @ 619 g/t Ag .
149 Vein – 0.21 m @ 24,913 g/t Ag, 16.9 % Cu
- Located on the 4900 L, adjacent to No. 3 & Galena shafts; shows exceptional copper‑silver mineralization.
All discoveries are part of the “Largest‑ever 2026 drilling program (~64 km)”.
Crescent Mine – Capacity & Development
- Total processing capacity: 1,558 tpd; Current utilization: 1,150 tpd, leaving ~410 tpd spare.
- Underground network: ≈ 12,000 ft of drifts, multiple adits (Countess, Alhambra, BC4) and the Ellis shaft .
- Infrastructure: new hoist motor, Komatsu wheel loaders, articulated haulers.
Antimony Production (U.S.)
- Galena Complex is the largest active antimony mine in the United States.
- Historic output: 20 + million lb of Sb since 2001, with an approximate 0.7 : 1 Sb / Cu ratio .
Market Position & Valuation
| Company | Silver‑Revenue % (2025) |
|---|---|
| Aya Gold & Silver | 100 % |
| Americas Silver | 78 % |
| Silvercorp | 71 % |
| Endeavour Silver | 67 % |
| Hecla Mining | 57 % |
Americas Gold and Silver derives approximately 80 % of revenue from silver .
| Rank | Company | Market Cap (US$ B) |
|---|---|---|
| 1 | Fresnillo PLC | 33.5 |
| 2 | Pan American Silver | 23.6 |
| … | … | |
| 11 | Americas Silver | 1.5 |
Valuation chart shows Americas trailing the majors .
| Company | Spot‑Price / NAV (x) |
|---|---|
| First Majestic Silver | 2.10 |
| … | … |
| Americas Silver | 0.60 |
Low‑multiple suggests upside potential .
Ownership Structure
- Institutions 38 %
- Other 35 %
- ETFs 8 %
- Management & Directors 7 %
- Eric Sprott 12 %
Overall ~65 % held by insiders and long‑term investors.
Share Count (Fully Diluted)
- Common shares: 325 M
- Options: 7 M
- Warrants: 5 M
- DSUs/RSUs/PSUs: 11 M
- Fully diluted: 349 M.
Strategic Timeline (2023‑2025)
- 2023: Technical advisory & due‑diligence launch (Eric Sprott 40 % stake).
- 2024: 100 % consolidation announced; C$ 50 M concurrent financing closed.
- 2025: Consolidation finalized; US$ 100 M debt plus US$ 11.5 M equity; Crescent acquisition (US$ 4 / sh).
Key milestones are illustrated in the corporate‑transformation slide.
Success Checklist (Key Drivers)
- Resource expansion at Galena (high‑grade veins, depth potential).
- Operational efficiency via mechanized mining and hoisting upgrades.
- Capital allocation to sustain and grow production (2026 $90‑120 M).
- Exploration upside across Idaho and Cosalá (high‑grade discoveries).
- Strong balance sheet and supportive shareholder base.