Andina Copper Corporation (TSX-V: ANDC | FSE: FIR | OTCQB: PMMCF) reported an outstanding drill intercept from CDH007, the second hole completed from a new step-out drill pad at the Cobrasco Project in Chocó, Colombia. The results further expand the Cobrasco Central Cu-Mo porphyry system to the northwest and closely mirror those of CDH006, with near-surface mineralization commencing at 44m and continuing uninterrupted to 324m where a fault zone terminates the mineralized host unit and grades decrease.
Following the high-grade Cu-Mo intersections reported in recent drillholes CDH003 to CDH005 (refer March 24, 2026 News Release), a new step-out drill pad was collared to test the continuity and extension of the Cobrasco Central mineralized system to the northwest. Drillhole CDH006 was drilled to the southwest along this new section line intersecting 232m @ 0.68% Cu, 75ppm Mo, 2 g/t Ag from 38m (refer April 14, 2026 News Release). Hole CDH007 was drilled from the same pad to the northeast, in a section line parallel to previous holes CDH001 and CDH004.
Highlights from CDH007 include: 292m @ 0.48% Cu, 62ppm Mo, 1.7g/t Ag from 44m. Additional step-out drillholes CDH008 (completed) and CDH009 (in progress) have been drilled from the same pad to test extensions to mineralization in north and northwest orientations respectively, with assays pending for both holes. The ongoing program of scout drilling continues to rapidly expand the mineralized footprint at Cobrasco Central, with every drillhole completed to date reporting significant porphyry Cu-Mo mineralized intercepts from surface or near-surface to depths of approximately 600m.
Drillholes completed to date demonstrate a potentially world-class copper porphyry complex, comprising multiple intrusive phases, subvolcanic flow-domes and mineralization events occurring at (or near) surface. The current drillhole defined Cu-Mo mineralized footprint now measures approximately 1,000m x 500m, remains open in all directions and is expected to expand further with results from CDH008 and CDH009. High-grade intervals reported to date will be targeted with a 2nd drill rig.
Andina Copper’s President and CEO Joseph van den Elsen commented: “We continue to rapidly advance a wide-spaced scout drilling programme and actively extend the limits of the Cobrasco Central system. Incredibly, after only 7 drillholes the Cu-Mo mineralization footprint already covers an area of 1,000 x 500m, continues to grow with each drillhole and remains open in all directions. Step-out drillholes CDH008 and CDH009 are expected to further extend the drillhole defined mineralization footprint.”
Geology and Mineralization - Drillhole CDH007: Previous drillhole CDH006 was the first of multiple holes from a large step-out collar position designed to test the NW-extensions of the Cobrasco Central mineralization footprint and was collared approximately 400m NW of the previous drill pad (CDH002 – CDH005), and approximately 300m SW of CDH001. CDH006 was drilled parallel to CDH001 and CDH004 and was notable in intersecting a near-surface (shallow) and continuous moderate to high grade Cu-Mo mineralized interval commencing at 38m over a span of 232m. Hole CDH007 (Az: 45o Dip: -70º Depth: 603m) was the second hole to be drilled from this drill pad, oriented to drill parallel to CDH006 but trending NE along a SW-NE section line. Its relatively steep 70o dip allowed it to test approximately 565m vertically and 205m horizontally.
Mineralization observed in CDH007 is broadly consistent with that intersected in CDH006 and is dominated by chalcopyrite hosted within structurally prepared zones, including strong argillic alteration in near-surface saprolite and clay-rich fault gouge, transitioning to phyllic and grey-green sericite (GGS) alteration in more competent core intervals, with bornite occurring sporadically as disseminations and as rims to chalcopyrite mineralization.
CDH007 is mineralized from surface, reporting subdued grades generally in the 0.10 – 0.20% Cu range and with strong saprolite development to 48m. This depth marks the start of strongly fractured rhyolitic porphyry that extends to 218m containing a continuous high-grade interval punctuated by local microdiorite xenoliths and fault zones with high clay and sulphide content. A discrete interval of daci-andesite is contained between 218-237m and is accompanied by a corresponding decrease in Cu-grades before returning to rhyolitic porphyry and moderate to high Cu-grades to a depth of 254m.
254m marks the first occurrence of magmatic breccias with associated high-grade assays greater than 1% Cu. Two intervals of breccias are recorded (254-284m and 292-324m) where the host exhibit intense A-veins as stockwork veining and chalcopyrite (Cpy) as fault gouge and fracture fill. The main alteration is sericitic superimposed on remnant potassic alteration. The end of the magmatic-hydrothermal brecciation in the drill hole is marked by a faulted contact at 324m, below which an intermediate composition dacitic-andesitic intrusive unit is present. This unit extends to 436m and is characterized by a marked decrease in Cu-Mo grades. A subsequent fault zone between 436m and 445m separates the dacitic-andesitic unit from a poorly mineralized phaneritic granodiorite to tonalite intrusion carrying abundant magnetite veins. This intrusive unit was intersected to the end of the hole at 603m.
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