Endeavour Silver Corp. Achieves Commercial Production at Terronera Mine

Endeavour Silver Corp. announced on October 16, 2025, that it has achieved commercial production at its Terronera mine in Jalisco state, Mexico, effective October 1, 2025. The declaration followed a successful commissioning phase where mining and processing operations consistently exceeded 90% of the designed nameplate capacity of 2,000 tonnes per day and achieved at least 90% of projected metal recoveries. Since July 1, 2025, Terronera has operated for 100 days with only eight days of downtime and sustained strong metal recoveries since mid-August. The company forecasts processing approximately 360,000 tonnes over the next six months, with average grades estimated at 122 g/t silver and 2.52 g/t gold. Higher grade zones are expected to be accessed by mid-2026, further enhancing production. Management plans to issue annualized 2026 production and cost guidance for Terronera in January 2026.