Silver Tiger Reports on Current and Proposed Exploration on Veins North and South of the Historic El Tigre Mine

Executive Summary

• Silver Tiger Metals reports preliminary results from its 2025 Summer Exploration Program on the Northern Veins of the El Tigre Project and outlines plans to begin drilling in Q4‑2025.
• The company provides detailed channel sample assays and historic drill intercepts, highlighting high‑grade silver‑equivalent grades (e.g., up to 10,129 g/t AgEq over 0.85 m).
• Underground Preliminary Economic Assessment (PEA) is near completion with an expected release in Q3‑2025; open‑pit engineering studies are also progressing.

Key Details

• Exploration Objectives 2025 – Begin drilling Northern Veins in Q4‑2025; generate drill targets on Southern Veins (Lluvia de Oro, La Mancha, El Toro); increase vein mapping coverage from 50% to 70% of the project area.
• Channel Sampling – Northern Veins – 110 chip samples collected; notable results:
• Fundadora vein sample #3: Au 0.15 g/t, Ag 464 g/t, AgEq 476 g/t.
• Fundadora vein sample #4: Au 0.24 g/t, Ag 654 g/t, AgEq 672 g/t.
• Fundadora vein sample #5: Au 0.40 g/t, Ag 95 g/t, AgEq 118 g/t.
• Historic Drill Intercepts (Northern Veins) – Significant high‑grade intervals include:
• Hole ET-83‑015 (Fundadora): 1.1 m @ 14.38 g/t Au, 537.7 g/t Ag → 1,616 g/t AgEq.
• Hole ET-17‑144 (Caleigh): 0.85 m @ 24.40 g/t Au, 913 g/t Ag → 2,743 g/t AgEq.
• Hole ET-20‑163 (Protectora): 0.5 m @ 3.56 g/t Au, 1,782 g/t Ag → 2,049 g/t AgEq.
• Vein Mapping – Over 25 km of vein strike mapped (50% of project); target to map 70% by year‑end.
• Underground PEA Update – Technical team and lead consultants (P&E Mining) near completion; final CAPEX/OPEX, flow‑diagram design, metallurgical & geotechnical studies completed. Expected release Q3‑2025.
• Open‑Pit Update – Kappes, Cassiday & Associates retained for detailed heap‑leach engineering; WSP completed preliminary heap‑leach and pond engineering.
• Qualified Person – David R. Duncan, P.Geo., VP Exploration, has reviewed and approved the technical information per NI 43‑101.

Notable Quotes

“As we get nearer to making a construction decision for the open pit portion of the El Tigre Project… we are advancing our summer exploration program.” – Glenn Jessome, President & CEO
“The Northern Veins show the same structure, mineralogy, grades and orientations as the well‑defined veins around the historic El Tigre Mine.” – Glenn Jessome, President & CEO

Materiality Assessment: Non-Material – Positive (the release provides operational updates without immediate financial impact).