Andina Copper Corp. is pleased to report that diamond drill holes PIU12 and PIU13, the first two holes designed to test the large, deep-seated low resistivity Magnetotelluric (“MT”) geophysical anomaly at the Piuquenes Project North target (see News Release dated February 10, 2026), were completed to final depths of 992.60m and 1,235m, respectively. Both holes intersected multiple intrusive phases associated with porphyry-style copper sulphide mineralization within a newly identified intrusive complex at Piuquenes North.
HIGHLIGHTS
- Both PIU12 and PIU13 confirmed the presence of copper sulphide mineralization at depth within the approximately 800m by 700m MT anomaly targeted by the current drill program.
- Hole PIU13 intersected four porphyry intrusive phases, confirming the presence of a well-developed porphyry system at the previously untested Piuquenes North target.
- The strongest visible copper sulphide mineralization in PIU13 was observed between 848m and 1,045m downhole, hosted within an early mineral porphyry phase.
- Copper sulphide minerals, including chalcopyrite and bornite, were logged throughout the early mineralized porphyry, occurring within quartz veins and as disseminations associated with potassic alteration.
- Hole PIU12 confirmed the lateral extent of the porphyry system, intersecting andesitic host rocks intruded by pre-mineral porphyry dykes containing chalcopyrite and minor bornite mineralization.
- Assay results for both PIU12 and PIU13 are pending.
Joseph van den Elsen, President and CEO of Andina Copper, commented:
“During the 2025/26 San Juan field season we continued to define and expand the recently discovered Piuquenes East copper-gold porphyry centre, while also testing a compelling undrilled MT geophysical target at Piuquenes North. Both drill holes completed at Piuquenes North intersected a multiphase porphyry copper system, with the MT anomaly remaining open to the north and at depth.
Confirmation of a third mineralized porphyry system at Piuquenes North marks an important milestone for the project and further demonstrates the significant exploration potential of the Piuquenes property. We now eagerly await assays results for both PIU12 and PIU13 and look forward to further advancing the systematic evaluation of our highly prospective 2,500-hectare land package in San Juan Province, concurrent with the rapid exploration of the Cobrasco Project in Colombia.”
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