Andina Copper Commences Exploration at Cobrasco

Executive Summary

• Andina Copper announced the start of field exploration at its Cobrascó porphyry Cu‑Mo project in Chocó, Colombia.
• Historical drilling at Cobrascó Central returned significant copper and molybdenum intercepts, with multiple high‑grade zones highlighted.
• Current 2025‑2026 work program includes surface mapping, rock chip sampling, stream sediment work at Cobrascó East, and mobilization of a drill crew to delineate the size and grade of the central porphyry target.

Key Details

• Project Overview: Cobrascó covers ~3,000 ha (30 km²) in the under‑explored Chocó Copper Belt, contiguous with the Andean porphyry system.
• Historical Drill Intercepts – Cobrascó Central:
• CDH001: 808 m @ 0.42 % Cu, 79 ppm Mo (incl. 138 m @ 0.77 % Cu, 164 ppm Mo; 82 m @ 0.90 % Cu, 199 ppm Mo).
• CDH002: 754 m @ 0.46 % Cu, 76 ppm Mo (incl. 172 m @ 0.74 % Cu, 78 ppm Mo).
• CDH003: 144.6 m @ 0.69 % Cu, 155 ppm Mo, 1.4 g/t Ag (EOH at 300.6 m).
• Mineralogy: Bornite‑dominant mineralization with minor chalcopyrite and molybdenite; low arsenic content.
• Geophysical/Geochemical Context: Strong Cu‑Mo anomalies in rock, soil, and stream sediments; magnetic lows indicating possible porphyry centers at East, North, South, and Southern Block zones.
• Current 2025 Work Program – Cobrascó East:
• Reconnaissance mapping & rock chip sampling of historic Rugby Resources targets (2023).
• Float samples showing up to 5.38 % Cu; outcrop samples up to 0.92 % Cu.
• Restarted stream sediment program targeting 2nd‑ and 3rd‑order streams.
• Future Plans: After East work, the team will move to Cobrascó North, South, and Southern Block for similar surface programs; drill crew mobilized to test size/grade of Central porphyry.
• Corporate Quote (President & CEO Joseph van den Elsen): Emphasizes “company‑making” nature of Cobrascó, the refreshed board’s focus on multi‑asset news flow, and upcoming 2025/26 field season at the Piuquenes project in Argentina.
• Qualified Person: Francisco Montes (MAIG #4160) has verified all technical information per NI 43‑101.

Notable Quotes

“Cobrascó is a company‑making asset, and our focus is on defining the size and grade potential of the initial discovery at Cobrascó Central and concurrently advancing other highly prospective targets along the Eocene porphyry belt.” – Joseph van den Elsen, President & CEO.