Quimbaya Gold Announces that Dr. Stewart Redwood Provides Independent Confirmation of Porphyry Copper System at Tahami Center

Executive Summary

• Independent consulting geologist Dr. Stewart D. Redwood confirmed a large, open‑pit porphyry copper‑gold‑molybdenum system at the Tahami Center project (≈2.0 km × 1.4 km).
• The discovery adds a “bonus” porphyry target to Quimbaya’s existing high‑grade Au‑Ag vein program, fundamentally changing the metallogenic model for the Segovia district.
• Management plans to fast‑track exploration and commence maiden drilling of the porphyry target in Q2 2026, with additional geochemical and geophysical work slated for Q1 2026.

Key Details

• Independent Confirmation: Dr. Redwood’s field examination (Nov 6‑8 2025) verified complete alteration zonation (potassic core → phyllic envelope → advanced argillic lithocap), characteristic of a textbook porphyry system.
• System Size & Geometry: Approximately 2.0 km N‑S by 1.4 km E‑W; remains open in all directions.
• Mineralogy at Surface: Visible chalcanthite, chalcopyrite, chalcocite, pyrite, molybdenite within granodiorite porphyry; strong magnetic anomaly coincident with the system.
• Geochemical Anomalies: Channel sampling shows highly anomalous Cu, Au, Mo, Pb, and Zn values.
• Exploration Recommendations: Fast‑track definition of drill targets for Q2 2026 maiden drilling of the porphyry target; continue channel and ridge‑and‑spur soil sampling with results to be released upon receipt.
• Project Strategy:
• Tahami South (Vein Targets): Ongoing high‑grade gold vein drilling, assay results pending – focus remains Q1 2026.
• Tahami Center (Porphyry Target): Pre‑drill work in Q1 2026; maiden drilling scheduled for Q2 2026.
• Upcoming Catalysts:
• Q1 2026 – Geochemistry, soils sampling, and drill target definition at Tahami Center.
• Q2 2026 – Maiden porphyry drilling at Tahimi Center.
• Q1 2026 – Magnetic & IP ground geophysical survey at Tahimi South.
• Q2 2026 – Second drilling program at Tahimi South.
• Qualified Person: Dr. Stewart D. Redwood, BSc (Hons), PhD, FIMMM, FGS, NI 43‑101 Qualified Person, reviewed and approved all technical information.

Notable Quotes

• Dr. Stewart D. Redwood: “Field observations confirm that it is a porphyry copper system… This discovery gives two different types of targets at Tahami – Au‑Ag veins and Cu‑Au‑Mo porphyry.”
• Alexandre P. Boivin, President & CEO: “We now have a genuine porphyry copper‑gold‑molybdenum system at Tahami Center… We are mobilizing to execute Dr. Redwood’s recommended work program and expect drills turning in Q2 2026.”