Andina Copper Provides Update on Piuquenes Project
Vancouver, British Columbia — February 10, 2026 — Leads & Copy — Andina Copper Corporation has provided an update on exploration at its Piuquenes Project in San Juan Province, Argentina.
Ongoing drilling at Piuquenes East continues to expand known porphyry copper-gold mineralization. Assay results are pending.
The company recently completed a deep-penetrating Magnetotelluric (MT) geophysical survey, which has defined a new drill target at Piuquenes North.
Drill hole PIU09 was completed at Piuquenes East to a depth of 799.5 meters and intersected multiple zones of porphyry mineralization. Assays are pending.
PIU10A is currently being drilled to test a target between the Piuquenes East and Piuquenes Central zones.
MT has outlined a previously untested anomaly measuring approximately 800 meters by 700 meters at Piuquenes North, adjacent to Piuquenes Central and Piuquenes East.
Integration of drilling results, geological interpretation, alteration mapping, IP, magnetics and MT geophysics has provided a clear focus for the next phase of exploration, the company said.
Follow-up drilling at Piuquenes East continues to expand mineralization intersected in PIU-06.
PIU09, drilled in January 2026 to 799.5 meters, intersected multiple mineralized intervals. Stronger mineralization was logged from ~565–635 meters downhole. Assays are pending.
The new MT Anomaly defined at Piuquenes North measures 800 meters by 700 meters.
The MT Anomaly is coherent, remains untested by drilling, and will be evaluated by drill holes PN01 and PN02. Drilling is expected to commence shortly.
To facilitate concurrent drilling at Piuquenes East and Piuquenes North, the company has mobilized a second drill rig.
Follow-up drilling at Piuquenes East continues to expand the porphyry copper-gold mineralization intersected in PIU06:
208 meters @ 0.31% Cu, 0.13 g/t Au, 1.24 g/t Ag (from 292 meters)
Including 98 meters @ 0.49 % Cu, 0.16 g/t Au, 1.26 g/t Ag (from 292 meters)
PIU09 intersected multiple zones of porphyry mineralization. An upper mineralized interval was logged between 370–395.7 meters downhole, followed by a more extensive zone from approximately 520 meters, which increases in intensity between 565 meters and 635 meters and persists to around 675 meters downhole.
PIU10A is currently being drilled. The hole targets the convergence of geological and structural features, including a NNE-trending structure mapped at surface and structurally related phreatomagmatic breccia containing clasts and veinlets of early mineralization.
The primary objective of PIU10A is to test for a previously untested porphyry intrusive body at depth, while a secondary objective is to improve understanding of the structural framework linking the Piuquenes East and Central mineralized zones.
Downhole logging records an increase in porphyry vein density and intensity with depth, including the development of well-formed quartz B-type veins with anhydrite–sulphide re-opening and associated chalcopyrite ± bornite mineralization.
Mineralization strengthens notably below ~565 meters downhole and persists to approximately 675 meters, with no clear decrease in intensity at the base of drilling.
The MT survey identified a deep-seated, low-resistivity anomaly at Piuquenes North that extends well below the limits of current drilling and beneath the known mineralized centers at Piuquenes East and Piuquenes Central. The anomaly begins ~600 meters below surface.
In the context of Miocene-aged porphyry systems of the southern Andes, conductive features of this scale and depth are commonly associated with deep intrusive activity or magmatic-hydrothermal sources, rather than shallow alteration effects.
Integration of the MT data with existing Induced Polarisation (IP) datasets, drilling results, alteration mapping and structural interpretation has improved understanding of the spatial relationship between deeper conductive features and overlying porphyry-style mineralization.
The MT Anomaly will be tested by planned drill holes PN01 and PN02.
President & CEO Joseph van den Elsen said Piuquenes has the characteristics of a significant Andean porphyry copper system, and a second drill rig has now been mobilized.
Concurrent with the continued testing of the porphyry copper-gold system at Piuquenes East, the company will shortly commence drill testing of the newly defined MT anomaly at Piuquenes North.
Andina Copper has completed two drill holes to date, with one additional hole currently in progress and two further holes planned.
Francisco Montes, a consultant of Andina Copper Corp and a “qualified person” (“QP”) within the definition of that term in National Instrument 43-101, has reviewed and approved the technical information that forms the basis for this release.
Andina Copper Corporation is a 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 discoveries along the Andean porphyry belt in Argentina and Colombia, and a copper-gold target in the Coastal Cordillera of Chile.
Source: Andina Copper Corporation
Share this story:
