May 13, 2026 – TheNewswire - Vancouver, British Columbia - Andina Copper Corporation (TSX-V: ANDC | FSE: FIR | OTCQB: PMMCF) is pleased to report continuing outstanding drill intercepts from the Cobrasco Project in Chocó, Colombia.

Drillhole CDH008 was completed to a downhole depth of 652.25m, with results extending the Cobrasco Central Cu-Mo porphyry system to the north. Near-surface mineralization begins at approximately 52m downhole and is associated with multiple mineralized porphyry phases and related magmatic-hydrothermal breccias. Two additional drillholes have subsequently been completed from the same platform, including CDH009 (completed; assays pending) and CDH010 (in progress). Visual logging indicates sulphide mineralization consistent with the broader Cobrasco Central system in both holes.

 

HIGHLIGHTS:

• CDH008 further confirms the northwest (“NW”) extension of the Cobrasco Cu-Mo mineralized system, returning: 

 

272m @ 0.50% Cu, 75ppm Mo, 1.92g/t Ag from 52m

Incl        152m @ 0.67% Cu, 68ppm Mo, 1.90g/t Ag from 54m

 

• Drillhole CDH008 was drilled due north to test the northern continuity and extension of the shallow mineralized zone at Cobrasco Central.  

• Additional step-out drillholes from the same drill pad, including CDH009 (completed) and CDH010 (in progress), are testing northwest and west-southwest (“WSW”) extensions to mineralization, respectively. Assays for both holes remain pending 

• The Cobrasco mineralized footprint continues to expand with successive drilling and currently extends approximately 1,100m along strike and 550m laterally.  

• Mineralization remains open in all directions, with further expansion potential toward the NW and WSW imminent, pending results from CDH009 and CDH010.  

Ongoing scout drilling continues, with further large step-out holes targeting the NW and northern extensions of the system planned.

Andina Copper’s President and CEO Joseph van den Elsen commented:

“We continue to systematically advance a wide-spaced scout drilling programme, actively testing the limits of the Cobrasco system with wide fans of significant step-out drillholes. The system continues to grow with each successive drillhole, with the mineralization footprint already covering an area of ~1,100m x 550m, and results from CDH009 and CDH010 expected to further extend.

Surface geochemistry and field observations strongly suggest that the mineralization continues to the north and northwest and indeed remains open in all directions. Preparations are being made for the mobilization of a second diamond drilling rig to support the next phase of definition drilling of Cobrasco Central and new porphyry centers still to be tested”.

Click Image To View Full Size

 

Figure 1: Cobrasco Project Collar Plan - drill traces and Cu-mineralization histograms over Cu soils.

  

Click Image To View Full Size

 

Figure 2: Detailed plan view of the northern Cobrasco Central drilling area showing CDH008, pending step-out drillholes (CDH009 and CDH010), and surface geochemistry which suggests mineralization extends to the northern concession boundary.

 

Click Image To View Full Size

Figure 3: Cobrasco Project composite drill section showing all drillholes with Cu-mineralization histograms and significant Cu-Mo intercepts (view looking east).

 

Geology and Mineralization – Drillhole CDH008

Drillhole CDH008 was collared from the same drill pad as CDH006 and CDH007 and drilled due north at an inclination of -50° to test the northern continuation of the shallow mineralized zone previously intersected from this collar position. Previous drillholes from the platform intersected broad intervals of shallow, continuous moderate- to high-grade Cu-Mo mineralization commencing from approximately 38 m downhole, including intervals of up to 486m in CDH006 (see Table 1: Cobrasco Project – Significant Drill Intercepts).

CDH008 (azimuth 360°, dip -50°, depth 652.25m) was designed to test approximately 420m laterally and 500m vertically from the collar position.

The drillhole intersected a leached cap with intense supergene alteration developed over intermineral rhyolite porphyry. Beneath the supergene-leached zone, a 30 m interval containing chalcocite coating hypogene sulphides suggests the incipient development of secondary copper enrichment.

The upper portion of the hole comprises sericite-altered intermineral rhyolite porphyry intruding dacite-andesite porphyry. The rhyolite porphyry contains early quartz (“A-type”) veins with disseminated chalcopyrite and pyrite mineralization.

The strongest mineralization encountered in CDH008 is associated with several potassic and sericite-altered magmatic-hydrothermal breccias spatially related to intermineral rhyolite porphyry intrusions. Higher Cu-Mo grades are consistently associated with hydrothermal breccia phases, where chalcopyrite occurs as matrix infill and as thin cross-cutting veinlets overprinting earlier molybdenite mineralization. Bornite was locally observed, commonly rimming chalcopyrite, and may indicate a later higher-sulphidation mineralizing event.

Younger late-intermineral rhyolite phases were intersected between 217m and 253m, and again below 290m, where mineralization and alteration intensity decrease and are characterized by weak sericite alteration associated with “D-type” veins.

At 398m, the drillhole intersected a crowded granodiorite porphyry interpreted to represent an earlier, relatively barren precursor intrusive phase.

The Company’s Corporate Presentation is available at: Andina Copper Corporate Presentation

Interested parties can subscribe to our mailing list and follow our social media channels in the links below:

Mailing List | Andina Copper LinkedIn | Andina Copper X

  

ON BEHALF OF THE BOARD

 

Joseph van den Elsen

President & Chief Executive Officer

joseph@andinacopper.com

  

Jordan Webster

VP – Technical Communications

jordan@andinacopper.com

 

QUALIFIED PERSON

Francisco Montes, a consultant of Andina Copper Corp and a “qualified person” (“QP”) within the definition of that term in National Instrument 43-101, Standards of Disclosure for Mineral Projects, has reviewed and approved the technical information contained in this news release. Francisco Montes is a member of Australian Institute of Geoscientists (MAIG #4160).

 

QAQC

 

CDH008 was collared with a PQ size drill string to a depth of 126m and continued with HQ/HQ3 to a final depth of 652.25m. In all cases the drill core was extracted from the core barrel by the drill contractor under the supervision of Andina Copper personnel and placed in core boxes with appropriate depth markers (core blocks) and padding added for extra protection during transport. Full core boxes were then sealed before being transported by helicopter and pickup truck to the Cobrasco core cutting facility in Quibdó. Core was cleaned where required, marked-up and photographed, prior to undergoing geotechnical and geological logging. All core was cut by diamond saw by Andina Copper technicians, other than the top saprolite intervals that could be cut and sampled by hand tools. All sampling was conducted in nominal 2m intervals with cut-lines marked by the supervising geologists to ensure representative sampling. Samples were placed in plastic bags with non-repeatable sample tags and bagged in polyweave sacks ready for transport.

The core trays with the remaining half-core are stored at the Andina Copper facility in Quibdó for ongoing geotechnical (Terraspec spectral analysis, magnetic susceptibility readings, rock density measurements) and follow-up detailed geological logging.  From Quibdó, core samples were sent to the ALS preparation facility in Medellin, an accredited laboratory which is independent of the Company. Prepared sample pulps were then sent to the ALS laboratory in Lima, Peru for gold (Au-AA23), multi-elements (ME-MS61), and “overlimits” analysis (ME-OG62 including copper Cu-OG62). Coarse and fine rejects are returned by ALS Medellin for storage at the Andina Copper storage facility.

 

Table 1: Cobrasco Project – Drill Collar Parameters (WGS84, UTM Zone 18N)

Click Image To View Full Size

 

Table 2: Cobrasco Project – Significant Drill Intercepts

Click Image To View Full Size

 

Note 1: The 272m @ 0.50% Cu, 75ppm Mo interval is constrained to maximum 10m <0.2% Cu.

Note 2: Interval widths are measured down-hole and uncorrected. They do not necessarily represent true widths of mineralization.

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 the world’s premier copper producing Andean porphyry belt in Argentina and Colombia, and a compelling undrilled copper-gold target in the prolific copper production district of the Coastal Cordillera of Chile.

FORWARD-LOOKING STATEMENT

This news release contains certain statements that may be deemed "forward-looking statements". All statements in this release, other than statements of historical fact, that address events or developments that Andina Copper expects to occur, are forward-looking statements. Forward-looking statements are statements that 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.  Although Andina Copper believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are no guarantee of future performance, and actual results may differ materially from those in forward-looking statements.

Neither the TSXV nor the Canadian Investment Regulatory Organization accepts responsibility for the adequacy or accuracy of this release.