Endeavour Silver starts production at Terronera

Executive Summary

• Endeavour Silver Corp. has officially declared commercial production at its Terronera mine in Jalisco, Mexico, effective October 1, 2025.
• The mine successfully completed its commissioning phase, consistently exceeding 90% of its designed nameplate capacity (2,000 tonnes per day) and achieving at least 90% of projected metal recoveries.
• The company forecasts approximately 360,000 tonnes of throughput over the next six months, with average grades of 122 g/t silver and 2.52 g/t gold, while higher-grade zones are scheduled to be accessed by mid-2026.

Key Details

• Production Status: Commercial production declared effective Oct. 1, 2025.
• Operational Performance:
  • Sustained strong metal recoveries since mid-August 2025.
  • Achieved >90% of designed nameplate capacity (2,000 tonnes per day).
  • Achieved ≥90% of projected metal recoveries.
  • Operated for 100 days since July 1, 2025, with only eight days of downtime.
• Forward-Looking Guidance:
  • Forecasted throughput: ~360,000 tonnes over the next six months.
  • Estimated average grades: 122 grams per tonne silver and 2.52 g/t gold.
  • Higher-grade zones expected to be accessed by mid-2026.
  • Annualized 2026 production and cost guidance for Terronera planned for release in January 2026.
• Management Commentary: CEO Dan Dickson described the milestone as "transformational," positioning Endeavour as a leading mid-tier silver producer with a foundation for future expansion.

Notable Quotes

• "Bringing Terronera into commercial production marks a huge milestone for Endeavour Silver and represents a truly transformational moment in our company's history. This achievement not only reinforces our commitment to sustainable growth but also positions Endeavour as a leading mid-tier silver producer with a solid foundation for future expansion." — Dan Dickson, Chief Executive Officer