Andina Copper Provides Exploration Update at Piuquenes
(TheNewswire)
February 10, 2026 – Vancouver, British Columbia. - TheNewswire - Andina Copper Corporation is pleased to provide an update onexploration activities at its Piuquenes Project in San Juan Province,Argentina. Ongoing drilling at Piuquenes East continues to expandknown porphyry copper-gold mineralization, with assay results pending.In addition, the Company has recently completed a deep-penetratingMagnetotelluric (MT) geophysical survey, which has defined anew, high-priority drill target at Piuquenes North.
PIU09 wascompleted at Piuquenes East to a depth of 799.5 m and intersected multiple zonesof porphyry mineralization (assays pending).
PIU10A iscurrently being drilled and is designed to test a high-priority targetlocated between the Piuquenes East and Piuquenes Central zones.
MT has outlined a previously untested, deep-seatedlow-resistivity anomaly measuring approximately 800 m × 700 m(the MT Anomaly) at Piuquenes North, immediately north of and adjacent toPiuquenes Central and Piuquenes East.
HIGHLIGHTS
The integration of drilling results, geologicalinterpretation, alteration mapping, IP, magnetics and MT geophysicshas provided a clear focus for the next phase of exploration.
Follow-up drilling at Piuquenes East continues toexpand mineralization intersected in PIU-06 (refer30 April 2025 News Release).
PIU09(January 2026) was drilled to 799.5 m, intersecting multiple mineralizedintervals. Visually stronger mineralization was logged from ~565–635m downhole (assayspending).
PIU10A designedto test a high-priority target located between the Piuquenes East andPiuquenes Central zones is currently being drilled.
New high-priority MT Anomaly defined at Piuquenes Northmeasures 800 m × 700 m.
The MT Anomaly is coherent, remains untested by drilling, and will beevaluated by proposed drill holes PN01 and PN02 (Figures 2 and 3), with drilling toshortly commence.
To facilitate concurrent drilling at Piuquenes East andPiuquenes North, the Company has mobilized a second drillrig.
Figure 1: Piuquenes Cu-Au projectlocation map, San Juan Province, Argentina.
Piuquenes East Drilling – DrillHoles PIU09 and PIU10A
Follow-up drilling at Piuquenes East continues toexpand the porphyry copper-gold mineralization intersected in PIU06(refer30 April 2025 News Release):
208 m @ 0.31% Cu, 0.13 g/t Au, 1.24g/t Ag (from 292 m)
Including 98 m@ 0.49 % Cu, 0.16 g/t Au, 1.26 g/t Ag (from 292m)
PIU09 wascompleted to a downhole depth of 799.5 m and intersected multiple zonesof porphyry mineralization. An upper mineralized interval was loggedbetween 370–395.7 m downhole, followed by a more extensive andcontinuous zone from approximately 520 m, which increases in intensitybetween 565 m and 635 m and persists to around 675 m downhole. Thethickness and continuity of mineralization observed in PIU09 supportthe interpretation of a robust porphyry system at Piuquenes Eastdisplaying multiples phases of veining and associatedmineralization.
PIU10A designedto test a high-priority target located between the Piuquenes East andPiuquenes Central zones is currently being drilled. The hole targetsthe convergence of geological and structural features, including aNNE-trending structure mapped at surface and structurally relatedphreatomagmatic breccia containing clasts and veinlets of earlymineralization. This surface expression indicates the presence of aporphyry mineralization at depth.
The primary objective of PIU10A is to test for apreviously untested porphyry intrusive body at depth, while asecondary objective is to improve understanding of the structuralframework linking the Piuquenes East and Central mineralizedzones.
Figure 2: IP chargeability sectionhighlighting a strong, vertically extensive chargeability anomalycoincident with porphyry mineralization and drilling at PiuquenesEast.
Geology and mineralization –PIU09
Observations from PIU09 provide geological support forthe interpretation of a deeper mineralized source. Downhole loggingrecords an increase in porphyry vein density and intensity with depth,including the development of well-formed quartz B-type veins withanhydrite–sulphide re-opening and associated chalcopyrite ± bornitemineralization.
Mineralization strengthens notably below ~565 mdownhole and persists to approximately 675 m, with no clear decreasein intensity at the base of drilling. This vertical zonation andpersistence of mineralization are consistent with the upper portionsof a vertically extensive porphyry system and support theinterpretation that the newly identified MT anomaly may represent adeeper intrusive or magmatic–hydrothermal source beneath the currentdrilling.
New MT and IP Data – RefinedExploration Framework
The MT survey completed in December has identified acoherent, deep-seated, low-resistivity anomaly at Piuquenes North thatextends well below the limits of current drilling and beneath theknown mineralized centres at Piuquenes East and Piuquenes Central. Theanomaly is characterized by its low-resistivity contrast, significantvertical extent commencing ~600 m below surface.
The MT response extends beyond the corelow-resistivity/high-conductivity zone and outlines a broad targetarea at depth; however, current interpretation focuses on the mostcoherent and well-defined core anomaly, which is considered thehighest-priority drill target.
In the context of Miocene-aged porphyry systems of thesouthern Andes, conductive features of this scale and depth arecommonly associated with deep intrusive activity ormagmatic-hydrothermal sources, rather than shallow alterationeffects.
Integration of the MT data with existing InducedPolarisation (IP) datasets, drilling results, alteration mapping andstructural interpretation has improved understanding of the spatialrelationship between deeper conductive features and overlyingporphyry-style mineralization. This relationship suggests that thecurrently defined Piuquenes East and Central mineralization mayrepresent upper-level expressions related to a deeper source atPiuquenes North.
The MT Anomaly will be tested by planned drill holesPN01 and PN02, designed to test this feature and its interpretedrelationship to known mineralization.
Figure 3: Plan view of plannedAndina drill holes targeting the Piuquenes North MT anomaly, shown ata 2,500 m RL slice (planned hole *).
Figure 4: Cross-section A–A?highlighting a significant, untested Piuquenes North MT anomaly (~800× 700 m) at Piuquenes North, defining planned priority targets PN01*and PN02* (planned hole *).
President & CEO Joseph van denElsen commented:
“Piuquenes has the characteristicsof a significant Andean porphyry copper system, and a second drill righas now been mobilized. Concurrent with the continued testing of theporphyry copper-gold system at Piuquenes East, we will shortlycommence drill testing of the newly defined MT anomaly at PiuquenesNorth.
The scale, coherence and depthextent of the MT anomaly are particularly encouraging and, withmultiple zones of porphyry-style mineralization already confirmed atboth Piuquenes Central and Piuquenes East, we are entering an excitingphase of exploration across multiple targets”.
Andina Copper has completed two drill holes to date,with one additional hole currently in progress and two further holesplanned to commence imminently. A summary of drill holes referenced inthis release is provided in Table 1 below:
Table 1: Summary of drill holesreferenced in this release.
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 thetechnical information that forms the basis for this news release.Francisco Montes is a member of Australian Institute of Geoscientists(MAIG #4160).
ABOUT ANDINA COPPER
Andina Copper Corporation is a unique South America-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 theworld’s premier copper producing Andean porphyry belt in Argentinaand Colombia, 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 inthis release, other than statements of historical fact, that addressevents or 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,or that events or conditions "will" or "may"occur. These statements are subject to various risks. AlthoughAndina Copper believes the expectations expressed in suchforward-looking statements are based on reasonable assumptions, suchstatements are not guaranteeing of future performance, and actualresults may differ materially from those in forward-lookingstatements.
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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