Endeavour Silver reports Q3 production 1,766,926 silver oz and 7,286 gold oz

Endeavour Silver (EXK) reports Q3 production of 1,766,926 silver ounces, or oz, 7,286 gold oz, and in combination with base metal production, a silver equivalent, or AgEq, total production of 3.0M oz. All dollar amounts are in US dollars. All production amounts exclude Terronera pre-operating production. Q3 Production Overview includes: Guanacevi Maintains Reliable Production: Production of silver and gold was within the planned range with throughput slightly above and grade slightly below plan; Bolanitos Continues to Perform: Due to the lower grades in Q3 2025, silver and gold production were both slightly below plan; Kolpa Delivers Consistent Results: Throughput and metal production was in-line with historical performance and management expectations; Terronera Approaching Commercial Production: Average mill recoveries reaching 82.8% for silver and 72.3% for gold during the month of September, while throughput exceeds 1,800 tonnes per day. Metal Sales and Inventories: Sold 1,762,484 silver ounces and 7,478 gold ounces during the third quarter. A total of 207,512 silver ounces and 600 gold ounces of bullion inventory and 19,381 silver ounces and 175 gold ounces in concentrate inventory were held at September 30, 2025.