Endeavour Silver Corp. (TSX: EDR) (NYSE: EXK) is pleased to report positive drill results from its exploration program at the Bolañitos Mine in Guanajuato State, Mexico. The 2024/2025 program focused on one key area, drilling the La Luz vein. Surface drilling intersected high-grade gold and silver mineralization and provides opportunities to replace reserves, increase resources and extend mine life.

“For more than 17 years, our exploration success has been integral to the ongoing operations at Bolañitos,” said Dan Dickson, Chief Executive Officer. “The latest results highlight our focus on efficient, cost-effective exploration, which continues to extend the mine’s life.”

Highlight Drill Results from La Luz Vein Structure 

• 1.17 gpt Au and 449 gpt Ag for 542 gpt AgEq over a 1.02 m ETW, including 1.73 gpt Au and 798 gpt Ag for 936 gpt AgEq over 0.38 m in hole LZ46-3
• 2.43 gpt Au and 1,063 gpt Ag for 1,258 gpt AgEq over a 1.62 m ETW, including 9.61 gpt Au and 4,070 gpt Ag for 4,839 gpt AgEq over 0.34 m in hole LZ48-1

Abbreviations include: gpt: grams per tonne; Au: gold; Ag: silver; ETW: estimated true width; m: metre; silver equivalents are calculated at a ratio of 80:1 silver:gold.

Drilling Context 

In the last quarter of 2024, a surface diamond drilling program began in the north extension of the La Luz vein, in the area of the San Bernabé Adit and San Rafael Shaft, an area within 500 metres from the Asunción mine, exploited in previous years by the Company.

To date, eight drill holes totaling 2,000 metres has outlined high-grade mineralization over 100 metres in length to a depth of 200 metres. The area remains open to the south and to depth. Drilling will continue in the area for the first half of 2025.

Figure 1: Surface map of the San Bernabe-San Rafael Area, Bolañitos project

Figure 2: Longitudinal section of La Luz (San Bernabe – San Rafael area)

Table 1. La Luz Drill Results

Note: Drill holes LZ46-2, LZ48-2 and LZ50-2 returned no significant results

Silver equivalents are calculated at a ratio of 80:1 silver:gold. All widths are estimated true widths. 

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 contained in this news release.

A quality control sampling program of reference standards, blanks and duplicates has been instituted to monitor the integrity of all assay results. All samples are split at the local field office and shipped to ALS Labs, where they are dried, crushed, split and 250-gram pulp samples are prepared for analysis. Gold is determined by fire assay with an atomic absorption finish and silver by aqua regia digestion with ICP finish, over-limits by fire assay and gravimetric finish.