08:14 AM EDT, 03/26/2026 (MT Newswires) -- Zacatecas Silver ( ZCTSF ) said Thursday that assay results for 124 rock-chip grab samples from the El Cristo vein system in Mexico confirmed near-surface silver and base metal mineralization associated with an intermediate sulfidation system.

The company said 29 samples assayed above 100 grams per tonne (g/t) silver equivalent, with a peak assay of 670 g/t silver equivalent.

Zacatecas said the results should be interpreted in the context of shaft dump sampling, as several shafts only intersected the upper oxidized portions of the veins, and the material present on the dumps was historically considered waste by prior operators.

Despite these limitations, the company said the assay data has provided valuable input for drill targeting by delineating areas where sulfide mineralization occurs near surface.

"The assay results are especially significant, given rock chip samples were taken from dumps around the shallow historical shafts, and was material considered low grade by the historical miners," Chief Geologist Chris Wilson said. "Moreover, a number of samples were extensively oxidised and leached."