Americas Gold & Silver Hits 1,891 Grams Per Tonne Silver as Galena Complex Drilling Finds New Veins

• Americas Gold & Silver reported results from the largest exploration and resource conversion drilling program in its history at the Galena Complex in Idaho.
• A new vein discovery on the 49 level of the Galena Mine returned 1,062 grams per tonne of silver and 0.7% copper over 1.3 meters.
• At the Coeur Mine, the 520 Vein now measures 200 meters along strike and 200 meters vertically, and remains open in all directions.
• Crescent Mine drilling returned 1,891 grams per tonne silver and 0.3% copper over 1.3 meters and identified 2 new veins near the Alhambra vein.
• Crescent infill drilling supports mine planning ahead of mining in 2027, followed by an updated Mineral Resource Estimate (MRE) in 2027.

Company Overview

Americas Gold & Silver (TSX: USA | NYSE American: USAS)  is a North American producer of silver and other critical minerals, with high-grade mining assets in the US and Mexico. Its flagship Galena Complex in Idaho includes the largest antimony mine in the US. The nearby Crescent Silver Mine is fully permitted and, according to the company, hosts one of the world's highest-grade silver resources. Through a 51/49 joint venture, the company is developing a domestic antimony supply chain from mine to finished product. It also owns and operates the Cosalá Operations in Sinaloa, Mexico, where the EC120 silver-copper mine is scaling up production.

Galena Complex Drilling Returns New Veins & Higher Grades

Americas Gold & Silver announced drill results from the Galena Complex on September 18, 2026. The Galena Complex comprises the operating Galena Mine, the connected Coeur Mine, which is at the restart stage, and the neighboring Crescent Mine. The assays come from infill and step-out exploration drilling across multiple target areas at all 3 mines.

Drilling has produced new vein discoveries at Galena and Crescent. The company also reports that infill intercepts are regularly returning higher silver grades than the current Mineral Resource model.

Chairman and Chief Executive Officer of Americas Gold & Silver, Paul Andre Huet, commented on the program: 

"The new drilling results at the Galena Complex continue to reaffirm our belief that we control one of the highest-grade, primary silver deposits not only in the historic Silver Valley but worldwide. Our drill program in 2026 has unlocked numerous new discoveries while significantly extending existing major veins on multiple levels of the mine."

New 49 Level Vein & 9 Vein Development at Galena

The new vein discovery on the operating 49 level of the Galena Mine returned 1,062 grams per tonne silver and 0.7% copper over 1.3 meters. The company states that the intercept is close to the minimum mining width for its ongoing transition to long hole stoping.

The company found the 9 Vein in the third quarter of 2026 when a utilities drift, being developed for mine services, crosscut it. The area had no historical drilling or vein projections. A drill intercept on the 9 Vein returned 7,123 grams per tonne silver, 3.24% copper, and 1.81% antimony over 0.4 meters. Since the discovery, the Galena team has completed about 85 meters of drifting along the vein's strike. It has also set up multiple drill bays to drill up- and down-dip of the original discovery.

Huet commented on the depth of drilling at Galena:

 "I will also note that all our drilling at Galena in 2026 has focused on in-mine exploration above the 6,000ft level. With neighbouring operating mines along strike extending deeper than 10,000ft, we have good reason to believe in the further potential below our existing operations."

Key Galena Complex Intercepts

The highest-grade intercept reported from the second and third quarter 2026 drilling was 20,124.0 grams per tonne silver, 8.3% copper, 7.1% antimony and 3.0% lead over 0.2 meters. Other intercepts included: 9,611.0 grams per tonne silver, 9.7% copper and 7.0% antimony over 0.1 meters; 4,323.0 grams per tonne silver, 9.0% copper and 4.5% antimony over 0.1 meters; and 3,608.0 grams per tonne silver, 3.1% copper and 2.6% lead over 0.4 meters. 

Wider intercepts included 2,390.9 grams per tonne silver, 1.6% copper and 1.2% antimony over 1.6 meters, and 1,391.6 grams per tonne silver, 1.5% copper, 1.5% antimony and 1.9% lead over 1.9 meters. Drilling also returned 3,054.4 grams per tonne of silver, 2.8% copper, and 2.1% lead over 0.8 meters, and 935.9 grams per tonne of silver, 0.7% copper, and 0.6% antimony over 2.3 meters.

Lead-rich intercepts included 2,783.8 grams per tonne silver, 2.9% copper, 2.6% antimony and 8.8% lead over 0.7 meters. Another returned 1,031.7 grams per tonne silver and 18.0% lead over 1.8 meters. All reported intercepts are estimated true widths. At the Coeur Mine, recent drilling extended the 520 Vein a further 45 meters up-dip. The vein was discovered in 2025. It now measures 200 meters along strike and 200 meters in vertical extent, and remains open in all directions.

Crescent Drilling Identifies 2 New Veins Near Alhambra

The company has completed 45 surface and underground core holes at the Crescent Mine. Assays have been reported for 12 of them, and results for the other 33 are pending. The 2026 infill campaign aims to confirm high-grade ore shoots in the historically mined Alhambra and South Veins. This work supports mine planning to be followed by an updated Mineral Resource Estimate (MRE)  in 2027. So far, drilling has confirmed historical vein projections and identified 2 new veins near the Alhambra vein. These new veins warrant follow-up drilling to define their scale and grade.

In the Alhambra vein, intercepts included 1,891.1 grams per tonne silver, 0.3% copper and 0.5% lead over 1.3 meters. Drilling also returned 1,559.5 grams per tonne silver, 0.1% copper and 0.8% antimony over 1.1 meters, and 1,109.5 grams per tonne silver, 0.3% copper and 2.3% lead over 1.1 meters. New vein intercepts included 3,514.7 grams per tonne silver, 4.1% copper and 2.0% antimony over 0.2 meters, and 1,533.4 grams per tonne silver over 0.3 meters. Another new vein intercept returned 939.3 grams per tonne silver over 0.8 meters. The South Vein returned 762.0 grams per tonne silver and 0.9% copper over 0.6 meters.

Huet outlined the goals of the Crescent program: 

"Our goals are twofold: infill drill the existing Mineral Resource at Alhambra and South Veins for detailed mine planning ahead of mining in 2027 and testing for new high-grade shoots."

Next Steps

Assays for the remaining 33 holes at Crescent are pending. Follow-up drilling is planned on the 2 new veins near Alhambra. Crescent infill results will feed detailed mine planning ahead of mining in 2027, and an updated MRE is also due in 2027. At the Galena Mine, the new drill bays on the 9 Vein will allow drilling up- and down-dip of the original discovery. The 520 Vein at the Coeur Mine remains open in all directions. 

Americas Gold & Silver reports high-grade silver vein discoveries at the Galena and Crescent mines in Idaho, including 1,891 grams per tonne over 1.3 meters.

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