Endeavour Silver Corp. (NYSE: EXK) (TSX: EDR) reports first quarter 2025 production of 1,205,793 silver ounces and 8,338 gold oz, for silver equivalent⁽¹⁾ production of 1.9 million oz.

“Our Q1 production results highlight the strength of our operations and our focus on consistent, efficient performance,” said Dan Dickson, Chief Executive Officer. “This steady momentum lays a solid foundation for the quarters ahead, as we sharpen our operational focus and prepare to bring Terronera into production.”

Q1 2025 Production Overview

• Guanaceví in Line with Guidance: Production in line with plan, continues at full capacity with slightly lower silver and gold grades processed than plan.
• Bolañitos Delivers Steady Production: Silver production was consistent with plan, while gold production was slightly below plan due to lower gold grades.
• Metal Sales and Inventories: Sold 1,223,684 silver ounces and 8,538 gold ounces during the first quarter. A total of 219,151 silver ounces and 715 gold ounces of bullion inventory and 31,232 silver ounces and 452 gold ounces in concentrate inventory were held at quarter end.

Q1 2025 Mine Operations

Consolidated silver production was 1,205,793 ounces in Q1 2025, in line with plan and 17% lower than Q1 2024. Lower silver production was driven by 24% lower silver production at the Guanaceví mine, partially offset by 53% higher silver production at the Bolañitos mine compared to the same quarter in 2024. Consolidated gold production was 8,338 ounces in Q1 2025, 18% lower than Q1 2024 due to 28% lower gold production at the Bolañitos mine, and 3% lower gold production at the Guanaceví mine.

In Q1 2025, Guanaceví throughput was 11% lower than Q1 2024 and silver and gold grades were 13% lower and 4% higher, respectively, which drove the 24% lower silver and 3% lower gold output. Guanaceví throughput and grades were in line with plan. Supplies of local third-party feed continued to supplement mine production, amounting to 18% of quarterly throughput.

Bolañitos Q1 2025 throughput was in line with throughput in Q1 2024, combined with 60% higher silver grades offset by 26% lower gold grades. Silver production was 53% higher than the same period in 2024, while gold production was 28% lower. Throughput and silver grades were consistent with plan, while gold grades were slightly lower than plan. The grade variation is due to mining from different locations in the ore body.

Production Highlights for the Three Months Ended March 31, 2025

¹ Silver equivalent (AgEq) is calculated using an 80:1 silver:gold ratio.

Production Tables for the Three Months Ended March 31, 2025 by Mine

gpt = grams per tonne
Totals may not add up due to rounding

About Endeavour Silver

Endeavour is a mid-tier precious metals company with a strong commitment to sustainable and responsible mining practices. With operations in Mexico and the development of the new cornerstone mine in Jalisco State, the Company aims to contribute positively to the mining industry and the communities in which it operates. In addition, Endeavour has a portfolio of exploration projects in Mexico, Chile and the United States to facilitate its goal to become a premier senior silver producer.

Qualified Person

Dale Mah, P.Geo., Vice President Corporate Development, a qualified person under NI 43-101, has approved the scientific and technical information related to operations matters in this news release.