Andina Copper drills 454 m of 0.43% Cu at Cobrasco

Executive Summary

• Andina Copper Corp. reported significant drill intercepts from hole CDH005 at its Cobrasco project in Colombia, confirming a large-scale southerly extension of Cu-Mo-Ag mineralization.
• The hole intersected 198 m at 0.51% Cu, 78 ppm Mo within a broader 454 m at 0.43% Cu, 66 ppm Mo, demonstrating a multiphase porphyry system with consistently mineralized intermediate intrusive phases.
• Exploration is accelerating with holes CDH006 and CDH007 completed (assays pending), CDH008 underway targeting northern extensions, and a second drill rig being mobilized to systematically define the ~2,500 m by 1,000 m target area.

Key Details

• Drill Intercept (CDH005): 198 m at 0.51% Cu, 78 ppm Mo within 454 m at 0.43% Cu, 66 ppm Mo.
• Cut-off & Dilution: 0.2% Cu cut-off applied with a maximum dilution of 10 m.
• Geology & Mineralization: Hole tested southern extensions to 700 m depth, intersecting intermediate diorite to dacite-andesite porphyries with chalcopyrite-dominant sulphides and sericite alteration. Lower sections display propylitic (epidote-chlorite) alteration. Mineralization remains open to the south.
• Drilling Progress & Plans: CDH006 and CDH007 completed (assays pending); CDH008 underway targeting northern extension. A second drill rig will be mobilized to accelerate exploration. Approximately 1,000 m by 750 m has been tested to date, representing less than half of the 2,500 m by 1,000 m target area.
• Geochemical Anomaly: Large Cu-Mo surface anomaly extends ~2.5 km north-south and 900 m east-west, supported by rock chip geochemistry, mapping, and geophysical data.
• QA/QC: HQ/NQ drill string, core cut by diamond saw in nominal 2 m intervals, samples sent to independent ALS labs (Medellin/Lima) for Au, multielement, and Cu analysis.
• Qualified Person: Francisco Montes (MAIG No. 4160), consultant, verified technical information per NI 43-101.

Notable Quotes

• Joseph van den Elsen, President & CEO: "Ongoing drilling at Cobrasco continues to demonstrate the large-scale and relatively shallow nature of Cobrasco Central, with results from hole CDH005 significantly extending the mineralized envelope to the south. With broad spaced holes having tested less than half the target area to date, we see the potential for a globally significant copper deposit(s) at Cobrasco. To accelerate exploration and evaluation, a second drill will be mobilized to systematically explore and define the lateral extents of the Cu-Mo system and to add volume to the higher-grade copper shells intersected in drilling to date."