Andina Copper Extends Shallow Mineralization at Cobrasco Project; Drill Results Expand Footprint to 1,200m by 550m

Andina Copper Corporation (TSX-V: ANDC | FSE: FIR | OTCQB: PMMCF) announced outstanding drill results from its Cobrasco Project in Choco, Colombia, with hole CDH009 confirming a significant northwesterly extension of near-surface mineralization. The results expand the drillhole-defined mineralized footprint at Cobrasco Central to approximately 1,200 meters by 550 meters, with the system remaining open in all directions.

Drillhole CDH009 was drilled northwesterly from the same pad as previous holes CDH006, CDH007, and CDH008 (refer to the 13 May 2026 News Release) to a final depth of 954 meters. From 38 meters downhole, it returned 502 meters at 0.40% copper, 73 ppm molybdenum, and 1.22 g/t silver, including 388 meters at 0.44% copper, 36 ppm molybdenum, and 1.28 g/t silver, and a higher-grade interval of 186 meters at 0.50% copper, 22 ppm molybdenum, and 1.48 g/t silver.

Joseph van den Elsen, President and CEO of Andina Copper, stated: "Andina Copper continues to systematically advance its scout drilling programme in a northwesterly direction with wide spaced fans of holes aimed at expanding the envelope of porphyry Cu-Mo mineralization. The results of hole CDH009 validate this approach, significantly extending shallow, near-surface copper-molybdenum mineralization 350m to the northwest. Incredibly, all nine drill holes reported to-date have returned wide intervals of high-grade, near-surface Cu-Mo mineralization."

The mineralization persists to the end of CDH009 at 954 meters, although copper grade decreases at depth as the intensity of overprinting sericite alteration and associated chalcopyrite–bornite mineralization progressively transitions to a lower-grade potassic-altered domain. Geological logging of two additional completed step-out holes, CDH010 and CDH011, indicates the mineralized system extends into both, with assay results pending.

Wide-spaced scout drilling designed to assess the overall scale potential of the Cobrasco mineralized system is ongoing from a new platform located approximately 350 meters northwest of the previous drill site. Preparations are underway for the introduction of a second drill rig to expedite exploration and evaluation of the Cobrasco Central system and enable simultaneous testing of potential new porphyry centers.

Details of the geology and mineralization of CDH009 show the hole intersected a leached cap with supergene oxidation to about 41 meters. Below the base of oxidation and extending to approximately 350 meters downhole, significant chalcopyrite mineralization occurs as disseminations and hairline veinlets. Below 350 meters, copper and molybdenum mineralization is principally associated with halo veins and alteration fronts. The highest grades are found in the upper 300 meters, closely associated with intensive white to green sericite alteration.

Francisco Montes, a consultant of Andina Copper and a qualified person under NI 43-101, has reviewed and approved the technical information in this release. The company follows rigorous QAQC procedures, with core samples sent to ALS in Medellin and Lima for analysis.

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