Americas Gold & Silver Announces Fourth Major Discovery at Galena Complex, Identifying Six New High-Grade Silver Veins

• First Quarter 2026 exploration drilling from the 4300 Level has defined six new high-grade silver-copper-antimony veins within 25 metres of current mine infrastructure at the Galena Complex.
• The 43L-TJ Vein Complex is located approximately 150 metres southwest of the 149 Vein and consists of multiple silver-copper-antimony and lead veins.
• Six core holes have intersected significant grades, with the highest-grade intercepts including 1,392 grams per tonne silver, 1.5% copper, and 1.5% antimony over 1.9 metres, and 2,563 grams per tonne silver over 0.7 metres.
• The Galena team is planning follow-up drilling and an exploration drift into the 43L-TJ Vein area to understand structural controls and fast-track future production from the 4300 Level.
• This marks the company's fourth major new discovery in one year of drilling at the Galena Complex, following the 034 Vein, 149 Vein, and 520 Vein Complex discoveries.

About Americas Gold & Silver Corporation

Americas Gold & Silver (TSX: USA / NYSE American: USAS) is a North American mining company producing silver, copper, lead, and antimony from operations in the United States and Mexico. In December 2024, the company acquired 100% ownership of the Galena Complex in Idaho in a transaction with Eric Sprott, who became the company's largest shareholder, consolidating Galena as a cornerstone US silver asset and the nation's largest antimony mine. In December 2025, the company acquired the Crescent Silver Mine, located nine miles from Galena. In February 2026, the company formed a 51/49 joint venture with US Antimony to build an antimony processing hub at Galena. The company also owns and operates the Cosalá Operations in Sinaloa, Mexico. 

Discovery Context: Four Major Vein Systems in Twelve Months

The company announced the discovery of six new high-grade silver-copper-antimony veins at its Galena Complex in Idaho. The 43L-TJ Vein Complex marks the company's fourth major new discovery within a twelve-month drilling campaign, following the identification of the 034 Vein, 149 Vein, and 520 Vein Complex between mid-2025 and early 2026.

First Quarter 2026 exploration diamond drilling from the 4300 Level has defined the new vein complex approximately 150 metres southwest of the 149 Vein. The six veins were discovered within 25 metres of current mine infrastructure whilst the company was conducting infill and step-out drilling targeting the 149 Vein Complex, which was announced in the August 22, 2025, news release.

Drill Results: Six Intercepts Averaging Over 1,000 Grams Per Tonne Silver

Six core holes have intersected the 43L-TJ Vein Complex to date. All reported intercepts are estimated true widths.

The highest-grade intercepts returned 1,392 grams per tonne silver, 1.9% lead, 1.5% copper, and 1.5% antimony over 1.9 metres; 1,313 grams per tonne silver, 2.6% lead, 1.4% copper, and 1.1% antimony over 1.0 metres; and 2,563 grams per tonne silver, 0.3% lead, 1.8% copper, and 1.4% antimony over 0.7 metres.

The remaining three holes returned 832 grams per tonne silver over 1.7 metres, 470 grams per tonne silver over 0.9 metres, and 3,714 grams per tonne silver over 0.5 metres. All six intercepts were from the 43L-TJ Vein.

Paul Andre Huet, Chairman and Chief Executive Officer of Americas Gold & Silver, stated:

"Our team at Galena continues to deliver impressive new discoveries at our flagship operation. The discovery of six new high-grade silver-copper-antimony veins at the 43L-TJ Vein Complex is advancing on a similar trajectory to our 034 Vein discovery mid last year, which has already added material ounces to our 2025 resource update and is now in development to prepare for future production. These are the strengths of pairing an aggressive drill campaign, strong team and large exploration budget with the tremendous amount of infrastructure already in place at Galena, a world class operation."

Infrastructure Position: 25 Metres From Operating Mine Development

The 43L-TJ Vein Complex is composed of a series of silver-copper-antimony and lead veins discovered within 25 metres of current mine infrastructure on the 4300 Level. This proximity positions the new discovery for potential near-term integration into mine plans without requiring extensive development infrastructure.

The Galena team is currently planning follow-up drilling and an exploration drift into the 43L-TJ Vein area. The stated objectives are to better understand structural controls on mineralisation and fast-track future production from the 4300 Level.

Huet continued: 

"This marks our fourth major new discovery and highlights four high-grade discoveries in just one year of drilling, underscoring the significant untapped potential across the Galena Complex. Located just 25 metres from existing infrastructure, the 43L-TJ Vein is wide open for expansion and will remain a focus of our team to aggressively advance this high-grade opportunity in 2026."

Discovery Sequence: Four Vein Complexes in Twelve Months

The 43L-TJ Vein Complex follows three prior discoveries announced during the company's current exploration campaign. The 034 Vein discovery, announced in mid-2025, has been incorporated into the company's 2025 resource update and is currently in development to prepare for future production. The 149 Vein Complex and 520 Vein Complex were identified during the same drilling period.

The company attributes the discovery rate to the combination of an aggressive drill campaign, exploration budget allocation, and existing underground infrastructure at the Galena Complex. The Complex has a production history spanning silver, copper, lead, and antimony.

Huet stated: 

"Galena has a long and storied history of silver, copper, lead and antimony production, and this new discovery is a true testament to the outstanding growth potential of our Idaho assets, with grades that highlight the Galena Complex as one of the highest-grade silver operations globally."

Next Steps

The company is planning follow-up drilling at the 43L-TJ Vein Complex to expand the known mineralised envelope and test for additional parallel structures. An exploration drift will be advanced into the vein area from the 4300 Level to provide direct underground access for structural mapping and definition drilling.

The stated objective is to define the structural controls on mineralisation, which will inform future development decisions. The company has indicated the 43L-TJ Vein will remain a priority target through 2026 as part of the broader exploration strategy to advance high-grade opportunities at the Galena Complex.

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