Andina Copper Reports Significant Copper-Molybdenum Extension at Colombian Project

Andina Copper Corporation's latest drill results from the Cobrasco Project in Colombia reveal a substantial northwest extension of shallow copper-molybdenum mineralization, potentially indicating a world-class porphyry system that continues to expand with each drillhole.

April 22, 2026
Andina Copper Reports Significant Copper-Molybdenum Extension at Colombian Project

Andina Copper Corporation has reported outstanding drill results from hole CDH007 at its Cobrasco Project in Chocó, Colombia, confirming a significant northwest extension of shallow copper-molybdenum mineralization. The results closely mirror those from the previously reported hole CDH006, with near-surface mineralization commencing at 44 meters and continuing uninterrupted to 324 meters where a fault zone terminates the mineralized host unit.

The drillhole CDH007 intersected 292 meters at 0.48% copper, 62 parts per million molybdenum, and 1.7 grams per ton silver from 44 meters depth. This intercept confirms continuity with hole CDH006, which previously intersected 232 meters at 0.68% copper, 75 parts per million molybdenum, and 2 grams per ton silver from 38 meters. Both holes were drilled from the same step-out drill pad designed to test the northwest extensions of the Cobrasco Central mineralization footprint.

According to the company's technical information, the current drillhole-defined copper-molybdenum mineralized footprint now measures approximately 1,000 meters by 500 meters and remains open in all directions. The ongoing scout drilling program continues to rapidly expand this footprint, with every drillhole completed to date reporting significant porphyry copper-molybdenum mineralized intercepts from surface or near-surface to depths of approximately 600 meters.

Andina Copper's President and CEO Joseph van den Elsen stated that after only seven drillholes, the copper-molybdenum mineralization footprint already covers a substantial area and continues to grow with each drillhole. The company has completed additional step-out drillholes CDH008 and CDH009 from the same pad to test extensions to mineralization in north and northwest orientations respectively, with assay results pending for both holes.

The mineralization observed in CDH007 is broadly consistent with that intersected in CDH006 and is dominated by chalcopyrite hosted within structurally prepared zones. The drillhole encountered various geological features including strongly fractured rhyolitic porphyry, discrete intervals of dacite-andesite, and magmatic breccias with associated high-grade assays greater than 1% copper. The company's detailed technical information is available in their corporate presentation.

Preparations are underway for the mobilization of a second drill rig that will support both the testing of further mineralized targets and the delineation of high-grade mineralization intersected in the widely spaced scout holes completed to date. The drillholes completed to date demonstrate what the company describes as a potentially world-class copper porphyry complex comprising multiple intrusive phases, subvolcanic flow-domes, and mineralization events occurring at or near surface.

The technical information in the news release was reviewed and approved by Francisco Montes, a consultant of Andina Copper Corp and a qualified person within the definition of that term in National Instrument 43-101, Standards of Disclosure for Mineral Projects. The company's quality assurance and quality control procedures involved sample preparation at the ALS facility in Medellin and analysis at the ALS laboratory in Lima, Peru.