WALLACE, Idaho--(BUSINESS WIRE)--Sep 8, 2025-- Americas Gold and Silver Corporation (NYSE American: USAS) (TSX: USA) (“Americas” or the “Company”), a growing North American precious and critical metals producer, is pleased to announce updated results from recent metallurgical testing on antimony contained in its copper concentrates generated during the first phase of the test program at its Galena Complex in Idaho. The testing, conducted by Allihies Engineering Inc. (“Allihies”) using its proprietary, selective industrial Alkaline Selective Leaching (ASL) hydrometallurgical technology, confirms very high extraction rates of antimony are possible. The ASL technology utilized by Allihies represents an improved and optimized version of the proven industrial process used for 60 years by Sunshine Mining at its antimony plant that existed until 2002 before it was demolished.