Vanguard hires W.B. Lennan to update Redonda NI 43-101

Executive Summary

• Vanguard Mining Corp. has engaged a Qualified Person (W.B. Lennan, PGeo) to update the NI 43-101 technical report for its 100%-owned Redonda copper-molybdenum project in British Columbia.
• The updated report will incorporate data from the recently completed 2025-2026 drill campaign, pending assay results, updated geophysical data, and historical data from Teck Resources Ltd.
• The company completed a drill program using Paradigm Drilling Ltd., targeting areas beyond historical drilling limits to refine the geological model; core logging observed alteration and sulphide mineralization, but assay results are pending.

Key Details

• Technical Report Update: Vanguard engaged W.B. Lennan, PGeo, to update the March 15, 2024, NI 43-101 technical report for the Redonda property.
• Data Inclusions: The update will include:
  • Results from the last two drill campaigns (including pending assays from the 2025-2026 campaign).
  • Updated geophysical data.
  • Historical data from Teck Resources Ltd. (nine NQ-diameter diamond drill holes totaling 1,681 metres in 1979).
• Drilling Operations:
  • Contractor: Paradigm Drilling Ltd.
  • Equipment: Boyles T-75 hydraulic, track-mounted diamond drill with NQ tooling (capable of depths >600 metres).
  • Status: Drilling completed as planned; core logged and submitted to ALS Canada Ltd. for analysis.
  • Observations: Visual logging noted alteration and sulphide mineralization consistent with the known Redonda system, but these are qualitative and not indicative of grade or economic significance.
  • Assay Status: No assay results received for the 2025 drill program at the time of the release.
• Historical Context & Precedent:
  • 1979 Teck Resources drilling: 9 holes, 1,681 metres.
  • 2023 follow-up drilling: 5 holes, 799.81 metres.
  • 2024 Historical Results (Stamper Oil & Gas): Intervals up to 142.6 metres grading 0.279% Cu and 0.0281% Mo; surface sampling yielded intervals of 3.1m to 48m grading 0.529% CuEq.
  • Core Verification: The 2024 report author noted that 2023 assays compared closely with 1979 results for hole R-79-2.
• Geophysics & Targeting:
  • 2024 Airborne Survey: Conducted by Precision GeoSurveys Inc., integrating total magnetic intensity, gradient magnetics, and radiometrics.
  • Findings: Delineated northeast-southwest-trending fault systems, circular magnetic lows (potential intrusive centres), and radiometric potassium anomalies defining potassic-alteration zones.
  • Data Availability: Full airborne data package (GeoTIFF maps) available on company website for reference only.
• Community Engagement:
  • Priority collaboration with Klahoose First Nation within their traditional territory.
  • Focus on local labour, training, and Klahoose-affiliated service providers.
  • Permitting: Consultation with Homalko First Nation concluded; permit for additional drill sites issued.
• Project Location & Geology:
  • Location: Vancouver mining division, near Campbell River, B.C. (40 km NE of Campbell River).
  • Size: 2,746.46 hectares across nine mineral claims.
  • Geology: Coast Suture zone between Wrangellia terrane and Coast Plutonic complex. Mineralization concentrated along hornblende dikes, sharing characteristics with nearby OKover and Gambier copper-molybdenum deposits.
• Qualified Person: J. T. Shearer, MSc, DIC, PGeo (consulting geologist, not at arm's length with Vanguard).