Andina Copper Exploration Update

Executive Summary

• Andina Copper reports over 2,200 m of diamond drilling completed at the Cobrasco Central target, with three holes intersecting significant copper‑molybdenum mineralization.
• Surface exploration at Cobrasco East has yielded stream sediment Cu values up to 245 ppm and float rock chip Cu grades as high as 0.71 %, indicating additional anomalous zones for follow‑up.
• The company is advancing geophysical work (drone LiDAR, aerial magnetotelluric and ground IP surveys) and expanding sampling programs across the 1,500 ha northern block.

Key Details

• Drilling – Cobrasco Central
• Hole CDH001: 808 m @ 0.42 % Cu, 79 ppm Mo (184–992 m); includes 138 m @ 0.77 % Cu, 164 ppm Mo (768–906 m) and 82 m @ 0.90 % Cu, 199 ppm Mo (774–856 m).
• Hole CDH002: 754 m @ 0.46 % Cu, 76 ppm Mo (152–906 m); includes 172 m @ 0.74 % Cu, 78 ppm Mo (474–646 m).
• Hole CDH003 (extended): 144.6 m @ 0.69 % Cu, 155 ppm Mo, 1.4 g/t Ag (156–300.6 m); final depth 774.80 m; last 2.6 m intersected 2.69 % Cu, 151 ppm Mo, 7.3 g/t Ag.
• Additional holes: CDH004 drilled to 900.25 m; CDH005 to ~700‑900 m (planned).

• Total drilling completed to date (2025‑2026 campaign): ≈2,275 m.

• Surface Exploration – Cobrasco East

• Stream sediment sampling: 54 samples across 2nd/3rd order streams; Cu up to 245 ppm, Mo up to 1.11 ppm.

• Rock chip sampling: 10 in‑situ outcrop chips (generally subdued) and float samples with Cu up to 0.71 %.

• Geophysical & Remote Sensing Work

• Ongoing high‑definition drone LiDAR and aerial photogrammetry survey over the northern 1,500 ha block; second phase planned for southern block.

• Planned airborne magnetotelluric (AirMT) surveys across the entire concession, complemented by ground induced polarization (IP) surveys targeting identified zones.

• Future Work

• Follow‑up drilling and sampling of anomalous Cu‑Mo intervals in Cobrasco East.
• Geochronology studies on mineralized breccias to clarify relationship with the Mande Batholith.

Notable Quotes

• “Our comprehensive 2026 exploration programme is rapidly advancing our understanding of the Cobrasco system, and early drilling results are encouraging for the delineation of a major copper deposit.” – Joseph van den Elsen, President & CEO.