Zacatecas Silver Completes 2,027 Metre Diamond Drilling Program at El Cristo, Intersecting Multiphase Silver-Base Metal Veins Across 19 Holes - Assays Pending

Executive Summary

• Zacatecas Silver Corp. completed its 2026 diamond drilling program at the El Cristo target within its Zacatecas Silver Project in Mexico's prolific Zacatecas Mining District.
• The campaign consisted of 19 angled diamond drill holes totaling 2,027 meters over 32 days, achieving excellent core recovery exceeding 98%.
• While assay results are pending, core logging reveals near-surface (<100 m) multiphase quartz-carbonate base metal veins with abundant sphalerite and galena, consistent with historical high-grade silver-gold intercepts.
• Assay results will be released as they are compiled by ALS, with surface work and permitting continuing at the Oso Negro project.

Key Details

• Drilling Metrics: 19 angled diamond drill holes totaling 2,027 m completed over 32 days at the El Cristo target.
• Core Quality: Excellent recovery across mineralized zones exceeding 98%.
• Target & Geology: Program tested shallow depth and strike extensions of the El Cristo intermediate sulphidation epithermal vein system.
• Core Observations: Majority of holes intercepted near-surface (<100 m depth) mineralized structures with downhole widths of 3 to 4 m. Mineralization comprises classic multiphase quartz-carbonate base metal veins with abundant clotted sphalerite, galena, and pyrite.
• Historical Intercepts (2022 Campaign):
• Hole CRI-2022-001: 9.53 m @ 175 g/t AgEq (167 g/t Ag, 0.12% Zn, 0.03% Pb)
• Hole CRI-2022-005: 0.65 m @ 829 g/t AgEq (565 g/t Ag, 1.2 g/t Au, 2.7% Zn, 1.35% Pb)
• Additional elevated silver-equivalent intercepts from multiple scout holes
• Assay Processing: All core photographed, cut, and sampled; currently being processed by ALS. Results will be released as they are received and compiled.
• Project Context: El Cristo is proximal to prior 2022 drilling. Surface work and drill permitting are advancing at the Oso Negro project. The company holds 7,826 hectares across six projects in Mexico.
• Drill Hole Schedule: Campaign ran from March 31 to May 15, 2026, covering holes CRI-2026-030 through CRI-2026-048 with individual meterages ranging from 59.5 m to 171.9 m.

Notable Quotes

• Eric Vanderleeuw, CEO and Director: "Completing 19 holes for over 2,000 metres in 32 days, with core recovery above 98%, reflects strong execution by our team and our drill contractor at El Cristo. While assays remain pending, the core tells an encouraging story: we intersected multiphase veining with abundant sphalerite and galena across multiple holes, the same mineralization style that has consistently correlated with strong silver and gold grades in our prior drilling here. We look forward to receiving assays from ALS and reporting results as they come in. With El Cristo drilling complete, surface work and drill permitting advancing at Oso Negro, and a steady stream of results expected across the portfolio, this is shaping up to be a very active year."