Vanguard Mining Completes Drill Program With Assays Now Pending at Redonda Copper-Molybdenum Project, British Columbia

Executive Summary

• Vanguard Mining completed its Q4 2025 drill program, logging 511 m of core across multiple holes at the 100 % owned Redonda Project in British Columbia.
• The program tested historic targets and new structural corridors identified from a late‑2024 airborne geophysical survey; visual observations show alteration and sulphide mineralisation consistent with known system geometry.
• Assay results are pending; no quantitative grades have been released, but the drill completion provides critical data for future exploration planning and stakeholder engagement with the Klahoose First Nation.

Key Details

• Drill Contractor & Equipment: Paradigm Drilling Ltd. used a Boyles T‑75 hydraulic, track‑mounted diamond drill with NQ tooling capable of >600 m depth.
• Total Depth Drilled: 511 metres across the Q4 program (2025).
• Historical Context:
• 1979 Teck Corp. drilling: nine NQ holes, 1,681 m total.
• 2023 follow‑up program: five holes, 799.81 m total, with reported intervals up to 142.6 m grading 0.279 % Cu and 0.0281 % Mo (historical data).
• 2023 Exploration Hole Results (selected):
• Red‑23‑04: 15.2 m @ 0.452 % Cu, 0.0265 % Mo, 0.1053 ppm Re (surface to 18.2 m).
• Red‑23‑05 bottom interval: 142.6 m @ 0.279 % Cu, 0.0281 % Mo, 0.0927 ppm Re (39.3–182.0 m).
• Red‑23‑02 bottom interval: 10.7 m @ 0.375 % Cu, 0.1377 % Mo, 0.5871 ppm Re (158.5–169.2 m).
• Assay Status: Core logged by an independent senior geologist; samples submitted to ALS Canada Ltd.; assay results not yet received.
• Geophysical Targeting: Drill locations derived from late‑2024 airborne magnetic, gradient, and radiometric survey (Precision GeoSurveys) highlighting fault systems, circular magnetic lows, and potassic alteration zones.
• First Nations Collaboration: Ongoing partnership with Klahoose First Nation for labour, training, logistics, cultural heritage protocols, and environmental monitoring throughout the campaign.
• Qualified Person: J.T. Shearer, M.Sc., D.I.C., P.Geo. (BC & Ontario) reviewed and approved technical information per NI 43‑101.

Notable Quotes

“The 2025 drill program was designed to test targets beyond the limits of historical drilling and to improve our understanding of the geological framework at Redonda… While we have observed alteration and sulphide mineralization consistent with the known Redonda system, visual observations alone are not indicative of mineralization grades or economic significance.” – David Greenway, CEO

Materiality Assessment: Non‑Material – Positive (completion of a significant drill program without disclosed assay results; informative for investors but not yet materially impacting valuation).