Heiko Ihle

Wayne Lam

Craig Hutchison

Craig Stanley

Jacob Sekelsky

Lucas Pipes

Nick Giles

Alex Charenteau

Alex Terentiew

Phil Ker

Phil Kerr

Robert Carlson

Soundarya Iyer

- Endeavour Silver Corp. announced that it achieved **commercial production at its Terronera mine** in Jalisco state, Mexico, effective **October 1, 2025**.  **[1277866_0001062993-25-016153_exhibit99-1.htm:0]** 
- During the commissioning phase, 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**.  **[1277866_0001062993-25-016153_exhibit99-1.htm:0]** 
- The company forecasts a throughput of approximately **360,000 tonnes over the next six months**, with average grades estimated at **122 g/t silver and 2.52 g/t gold**.  **[1277866_0001062993-25-016153_exhibit99-1.htm:0]** 
- Management plans to issue annualized **2026 production and cost guidance for the Terronera mine in January 2026**.  **[1277866_0001062993-25-016153_exhibit99-1.htm:0]**

Endeavour Silver Corp. announces commercial production at Terronera mine

- **Endeavour Silver Corp.** announced that its **Terronera mine** in Jalisco, Mexico, achieved **commercial production** effective **October 1, 2025**.  **[1277866_0001171843-25-006469_exh_991.htm:0]** 
- During commissioning, the mine consistently exceeded **90%** of its designed nameplate capacity of **2,000 tonnes per day** and achieved at least **90%** of projected metal recoveries.  **[1277866_0001171843-25-006469_exh_991.htm:0]** 
- The company forecasts a throughput of approximately **360,000 tonnes** over the next six months, with average grades estimated at **122 g/t silver** and **2.52 g/t gold**.  **[1277866_0001171843-25-006469_exh_991.htm:0]** 
- Annualized **2026 production and cost guidance** for the Terronera mine is expected to be issued in **January 2026**.  **[1277866_0001171843-25-006469_exh_991.htm:0]**

Endeavour Silver Announces Commercial Production at Terronera Mine

- Endeavour Silver Corp. achieved **commercial production** at its Terronera mine in Jalisco, Mexico, effective **October 1, 2025**.  **[1277866_1c85489cc7d04cd09b6bbfb81fe7a1fa_0]** 
- During commissioning, the Terronera mine consistently exceeded **90%** of its designed nameplate capacity of **2,000 tonnes per day** and achieved at least **90%** of projected metal recoveries.  **[1277866_1c85489cc7d04cd09b6bbfb81fe7a1fa_0]** 
- The company forecasts throughput of approximately **360,000 tonnes** over the next **six months**, with average grades estimated at **122 g/t silver** and **2.52 g/t gold**.  **[1277866_1c85489cc7d04cd09b6bbfb81fe7a1fa_1]** 
- Management plans to issue annualized **2026** production and cost guidance for the Terronera mine in **January 2026**.  **[1277866_1c85489cc7d04cd09b6bbfb81fe7a1fa_1]**

- Endeavour Silver Corp. reported **Q3 2025 production** of **1,766,926 silver ounces**, **7,286 gold ounces**, and **3.0 million silver equivalent ounces**.  **[1277866_0001171843-25-006340_exh_991.htm:0]** 
- Consolidated silver production for Q3 2025 increased **102%** year-over-year, primarily driven by the addition of Kolpa, while gold production decreased **22%**.  **[1277866_0001171843-25-006340_exh_991.htm:0]** 
- The **Terronera project is nearing commercial production**, with September average mill recoveries reaching **82.8% for silver** and **72.3% for gold**, and throughput exceeding **1,800 tonnes per day**.  **[1277866_0001171843-25-006340_exh_991.htm:0]** 
- Since July 1, 2025, Terronera has produced approximately **212,043 ounces of silver** and **6,256 ounces of gold**.  **[1277866_0001171843-25-006340_exh_991.htm:2]**

Endeavour Silver Reports Q3 2025 Production and Terronera Update

- Endeavour Silver reported **Q3 2025 production** of **1,766,926 silver ounces**, **7,286 gold ounces**, and a total **3.0 million silver equivalent ounces**.  **[1277866_ecc3515d72014d64bcb8b971d3feba46_0]** 
- Consolidated **silver production increased by 102%** in Q3 2025 compared to Q3 2024, primarily due to the addition of Kolpa and higher grades at Bolañitos, while **gold production decreased by 22%**.  **[1277866_ecc3515d72014d64bcb8b971d3feba46_1]** 
- The **Kolpa mine delivered consistent results**, processing **195,752 tonnes** and producing **598,689 silver ounces** and **1,286,139 silver equivalent ounces** in Q3 2025.  **[1277866_ecc3515d72014d64bcb8b971d3feba46_1]** **[1277866_ecc3515d72014d64bcb8b971d3feba46_2]** 
- The **Terronera project is nearing commercial production**, with average mill recoveries reaching **82.8% for silver** and **72.3% for gold** during September, and throughput exceeding **1,800 tonnes per day**.  **[1277866_ecc3515d72014d64bcb8b971d3feba46_0]** **[1277866_ecc3515d72014d64bcb8b971d3feba46_3]**

ENDEAVOUR SILVER (EXK)