Andina Copper Reports Significant Mineralization Expansion at Cobrasco Project

Andina Copper Corporation reported highly encouraging assay results from drillhole CDH006 at its Cobrasco Project in Chocó, Colombia, confirming the northwest extension of the mineralized system. The hole, collared approximately 400 meters northwest of previous drill pads, intersected near-surface mineralization beginning at 38 meters and continuing through multiple intervals to a faulted contact at 808 meters. The results include a standout intercept of 232 meters at 0.68% copper and 75 parts per million molybdenum from 38 meters, demonstrating the high-grade nature of the porphyry mineralization.

The company's systematic step-out drilling continues to expand the known mineralization footprint within the upper 600 meters, now covering a lateral extent of approximately 950 by 525 meters, which remains open in all directions. Two additional holes, CDH007 and CDH008, have been completed from the same drill platform testing northeast and north extensions, with visible mineralization observed and assay results pending. Every drillhole completed to date has returned significant porphyry copper-molybdenum mineralization from surface or near-surface to depths of approximately 600 meters, indicating a substantial mineralized system.

President and CEO Joseph van den Elsen noted that the broadly spaced scout drilling will continue to define the limits of mineralization while testing newly developed targets. Preparations are underway for mobilizing a second drill rig to support both new target definition and infill drilling across the widely spaced scout holes completed to date. A new program of surface mapping and geochemical sampling is being prepared to run concurrently with drilling to delineate multiple targets for follow-up work.

Geological observations from CDH006 reveal important structural controls on mineralization, with a clear association between structural preparation of host units and resulting alteration and mineralization intensity. The upper portions show strong argillic alteration progressing to phyllic and grey-green-sericite alteration associated with the bulk of mineralization. A low-angle fault structure at approximately 46 meters marks the introduction of high copper and molybdenum grades, with sample G517536 from 46-48 meters returning 4.6% copper and 1495 parts per million molybdenum.

The mineralized system comprises multiple intrusive phases, subvolcanic flow-domes, and mineralization events, with the discovery of large intercepts in distinct magnetic host units opening broad areas for ongoing exploration. The company's technical information was reviewed and approved by qualified person Francisco Montes, a consultant of Andina Copper Corp. Detailed quality assurance and quality control procedures were followed throughout the drilling and sampling process, with samples sent to the ALS preparation facility in Medellin and analyzed at the ALS laboratory in Lima, Peru. Additional information about the project's drill intercepts and collar parameters can be found in the company's technical documentation.