Core Silver Significantly Expands Copper-Molybdenum Footprint at Laverdiere Through Soil Sampling

Executive Summary

• Core Silver released results of its 2025 soil sampling program at the Laverdiere Copper Project, outlining a multi‑kilometre Cu‑Mo mineralized corridor that extends 1.7 km northwest of the Main Skarn Zone.
• Peak soil anomalies reached 394 ppm Cu and 227 ppm Mo—over ten times local background—and identified two high‑priority, previously untested targets (Anomalies Y and Z) for future drilling.
• The data reinforce continuity with known high‑grade zones and suggest a large, open‑ended porphyry‑skarn system at depth, supporting an expanded drill program in 2026.

Key Details

• Survey Scope: Systematic 1.4 km × 5.6 km grid; 231 soil samples collected on 200 m × 200 m spacing.
• Anomaly Extent: Cu‑Mo mineralized corridor now traced over >5 km laterally; depth of known drilling exceeds 1,000 m.
• Peak Assays: 394 ppm Cu and 227 ppm Mo (≈10× background).
• Sample Statistics:
• Mo – 78 samples >10 ppm, 32 >25 ppm, 14 >50 ppm, 2 >100 ppm.
• Cu – 102 samples >30 ppm, 55 >50 ppm, 23 >100 ppm, 11 >150 ppm.
• New Priority Targets: Anomalies Y and Z exhibit strong Cu‑Mo signatures; slated for upcoming drill testing.
• Geophysical Correlation: Soil anomalies align with VTEM and 1st Vertical Derivative magnetics indicating structural controls favorable for porphyry mineralization.
• Historical Context: Historic adits (early 1900s) returned up to 27 m @ 1.20 % Cu; 1974 drilling reported 175 m @ 0.27 % Cu with higher‑grade intervals. Recent 2022 diamond drilling yielded up to 48.5 m @ 0.90 % Cu, 6 g/t Ag, 0.11 g/t Au.
• Future Work: Seven drill holes (3,857 m total) completed in 2025; assays pending. Soil results will guide the 2026 drilling campaign targeting deeper extensions of the system.

Notable Quotes

“The 2025 soil sampling results at Laverdiere mark a major step forward for Core Silver… we have now confirmed the presence of a large, coherent copper‑molybdenum system extending over five kilometres… these zones provide a clear roadmap for future drill targeting and enhance the discovery potential at Laverdiere as we advance the project.” – Nick Rodway, President & CEO

Materiality Assessment: Material – Positive (the release provides substantive, forward‑looking exploration data that materially enhances the company’s growth narrative and informs upcoming capital‑intensive drilling programs).