Andina Copper Intersects 152m at 0.67% Cu from 54m, within 272m at 0.50% Cu
(TheNewswire)
May 13, 2026 – TheNewswire- Vancouver, British Columbia- Andina Copper Corporation (TSX-V: ANDC | FSE:FIR | OTCQB: PMMCF) is pleased to report continuing outstanding drillintercepts from the Cobrasco Project in Chocó, Colombia.
Drillhole CDH008 was completed to a downhole depth of 652.25m, withresults extending the Cobrasco Central Cu-Mo porphyry system to thenorth. Near-surface mineralization begins at approximately 52mdownhole and is associated with multiple mineralized porphyry phasesand related magmatic-hydrothermal breccias. Two additional drillholeshave subsequently been completed from the same platform, includingCDH009 (completed; assayspending) and CDH010 (in progress). Visual logging indicatessulphide mineralization consistent with the broader Cobrasco Centralsystem in both holes.
HIGHLIGHTS:
CDH008 further confirms the northwest (“NW”) extension of theCobrasco Cu-Mo mineralized system, returning:
272m @ 0.50% Cu, 75ppm Mo, 1.92g/t Agfrom 52m
Incl 152m @ 0.67% Cu,68ppm Mo, 1.90g/t Ag from 54m
Drillhole CDH008 was drilled due north to test thenorthern continuity and extension of the shallow mineralized zone atCobrasco Central.
Additional step-out drillholes from the same drill pad,including CDH009 (completed) and CDH010 (in progress), are testingnorthwest and west-southwest (“WSW”) extensions to mineralization,respectively. Assays for both holes remain pending
The Cobrasco mineralized footprint continues to expandwith successive drilling and currently extends approximately 1,100malong strike and 550m laterally.
Mineralization remains open in all directions, withfurther expansion potential toward the NW and WSW imminent, pendingresults from CDH009 and CDH010.
Ongoing scout drilling continues, with further largestep-out holes targeting the NW and northern extensions of the systemplanned.
Andina Copper’s President and CEO Joseph van denElsen commented:
“We continue to systematicallyadvance a wide-spaced scout drilling programme, actively testing thelimits of the Cobrasco system with wide fans of significant step-outdrillholes. The system continues to grow with each successivedrillhole, with the mineralization footprint already covering an areaof ~1,100m x 550m, and results from CDH009 and CDH010 expected tofurther extend.
Surface geochemistry and fieldobservations strongly suggest that the mineralization continues to thenorth and northwest and indeed remains open in all directions.Preparations are being madefor the mobilization of a second diamond drilling rig to support the next phase of definitiondrilling of Cobrasco Central and new porphyry centers still to betested”.
Figure1: Cobrasco Project CollarPlan - drill traces and Cu-mineralization histograms over Cusoils.
Figure 2:Detailed plan view of the northernCobrasco Central drilling area showing CDH008, pending step-outdrillholes (CDH009 and CDH010), and surface geochemistry whichsuggests mineralization extends to the northern concessionboundary.
Figure3: Cobrasco Project composite drill sectionshowing all drillholes with Cu-mineralization histograms andsignificant Cu-Mo intercepts (view looking east).
Geology and Mineralization –Drillhole CDH008
Drillhole CDH008 was collared from the same drill padas CDH006 and CDH007 and drilled due north at an inclination of -50°to test the northern continuation of the shallow mineralized zonepreviously intersected from this collar position. Previous drillholesfrom the platform intersected broad intervals of shallow, continuousmoderate- to high-grade Cu-Mo mineralization commencing from approximately 38 m downhole, includingintervals of up to 486m in CDH006 (see Table 1: Cobrasco Project –Significant Drill Intercepts).
CDH008 (azimuth 360°, dip -50°, depth 652.25m) wasdesigned to test approximately 420m laterally and 500m vertically fromthe collar position.
The drillhole intersected a leached cap with intensesupergene alteration developed over intermineral rhyolite porphyry.Beneath the supergene-leached zone, a 30 m interval containingchalcocite coating hypogene sulphides suggests the incipientdevelopment of secondary copper enrichment.
The upper portion of the hole comprisessericite-altered intermineral rhyolite porphyry intrudingdacite-andesite porphyry. The rhyolite porphyry contains early quartz(“A-type”) veins with disseminated chalcopyrite and pyritemineralization.
The strongest mineralization encountered in CDH008 isassociated with several potassic and sericite-alteredmagmatic-hydrothermal breccias spatially related to intermineralrhyolite porphyry intrusions. Higher Cu-Mo grades are consistentlyassociated with hydrothermal breccia phases, where chalcopyrite occursas matrix infill and as thin cross-cutting veinlets overprintingearlier molybdenite mineralization. Bornite was locally observed,commonly rimming chalcopyrite, and may indicate a laterhigher-sulphidation mineralizing event.
Younger late-intermineral rhyolite phases wereintersected between 217m and 253m, and again below 290m, wheremineralization and alteration intensity decrease and are characterizedby weak sericite alteration associated with “D-type” veins.
At 398m, the drillhole intersected a crowdedgranodiorite porphyry interpreted to represent an earlier, relativelybarren precursor intrusive phase.
The Company’s Corporate Presentation is available at:Andina Copper CorporatePresentation
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ON BEHALF OF THE BOARD
Joseph van den Elsen
President & Chief Executive Officer
Jordan Webster
VP – Technical Communications
QUALIFIED PERSON
Francisco Montes, a consultant of Andina Copper Corpand a “qualified person” (“QP”) within the definition of thatterm in National Instrument 43-101, Standards of Disclosure forMineral Projects, has reviewed and approved the technical informationcontained in this news release. Francisco Montes is a member ofAustralian Institute of Geoscientists (MAIG #4160).
QAQC
CDH008 was collared with a PQ size drill string to a depth of 126m andcontinued with HQ/HQ3 to a final depth of 652.25m. In all cases thedrill core was extracted from the core barrel by the drill contractorunder the supervision of Andina Copper personnel and placed in coreboxes with appropriate depth markers (core blocks) and padding addedfor extra protection during transport. Full core boxes were thensealed before being transported by helicopter and pickup truck to theCobrasco core cutting facility in Quibdó. Core was cleaned whererequired, marked-up and photographed, prior to undergoing geotechnicaland geological logging. All core was cut by diamond saw by AndinaCopper technicians, other than the top saprolite intervals that couldbe cut and sampled by hand tools. All sampling was conducted innominal 2m intervals with cut-lines marked by the supervisinggeologists to ensure representative sampling. Samples were placed inplastic bags with non-repeatable sample tags and bagged in polyweavesacks ready for transport.
The core trays with the remaining half-core are stored at the AndinaCopper facility in Quibdó for ongoing geotechnical (Terraspecspectral analysis, magnetic susceptibility readings, rock densitymeasurements) and follow-up detailed geological logging. FromQuibdó, core samples were sent to the ALS preparation facility inMedellin, an accredited laboratory which is independent of theCompany. Prepared sample pulps were then sent to the ALS laboratory inLima, Peru for gold (Au-AA23), multi-elements (ME-MS61), and“overlimits” analysis (ME-OG62 including copper Cu-OG62). Coarseand fine rejects are returned by ALS Medellin for storage at theAndina Copper storage facility.
Table 1:Cobrasco Project – DrillCollar Parameters (WGS84, UTM Zone 18N)
Table2: Cobrasco Project –Significant Drill Intercepts
Note1: The 272m @ 0.50% Cu, 75ppmMo interval is constrained to maximum 10m <0.2% Cu.
Note2: Interval widths aremeasured down-hole and uncorrected. They do not necessarily representtrue widths of mineralization.
ABOUT ANDINA COPPER
Andina Copper Corporation is a unique SouthAmerica-focused copper explorer listed on the TSX Venture Exchange(TSXV:ANDC), Frankfurt (FSE: FIR), and OTC (OTCQB: PMMCF) exchanges.The Company holds two significant discoveries along the world’spremier copper producing Andean porphyry belt in Argentina andColombia, and a compelling undrilled copper-gold target in theprolific copper production district of the Coastal Cordillera ofChile.
FORWARD-LOOKING STATEMENT
This news release contains certain statements that maybe deemed "forward-looking statements". All statements in thisrelease, other than statements of historical fact, that address eventsor developments that Andina Copper expects to occur, areforward-looking statements. Forward-looking statements are statementsthat are not historical facts and are generally, but not always,identified by the words "expects" and similar expressions, orthat events or conditions "will" or "may" occur. These statements are subject to various risks. Although AndinaCopper believes the expectations expressed in such forward-lookingstatements are based on reasonable assumptions, such statements are noguarantee of future performance, and actual results may differmaterially from those in forward-looking statements.
Neither the TSXV nor the Canadian Investment RegulatoryOrganization accepts responsibility for the adequacy or accuracy ofthis release.
Copyright (c) 2026 TheNewswire - All rights reserved.
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