Mr. Joseph van den Elsen reports

ANDINA COPPER CONFIRMS HIGH-GRADE, NEAR-SURFACE COPPER

Andina Copper Corp. has released further high-grade, near-surface drill results at its Cobrasco porphyry copper-molybdenum discovery located in Choco, Colombia.

Drill hole CDH014 was drilled steeply to the northeast from the same pad as CDH013 (refer Sept. 23, 2026, news release) and intersected further high-grade mineralization from 52 metres (m) downhole, confirming the extension of shallow, high-grade mineralization to the northwest of the previous drill pad.

Cobrasco is a major new porphyry copper discovery in the early stages of evaluation. With 14 holes and approximately 11,000 metres of drilling reported to date, drilling has outlined a large volume of copper mineralization within an open footprint of approximately 1,300 m by 550 to 700 m. In the northwestern part of that footprint, CDH014 intersected 76 m at 1.00 per cent Cu from 52 m downhole, including 32 m at 1.48 per cent Cu from 60 m downhole.

Drilling is continuing with assay results from an additional 3,000 m still pending. Mobilization of a second drill rig to target further expansion of the high-grade part of the system is expected within the quarter, while the current drill rig continues to extend the broader mineralized envelope.

Highlights:

• Hole CDH014 intersected:
  • 212 m at 0.50 per cent Cu (copper), 112 ppm Mo (molybdenum), 1.9 g/t (grams per tonne) Ag (silver) from 52 m including 76 m at 1.00 per cent Cu, 191 ppm Mo, 2.9 g/t Ag from 52 m including 32 m at 1.48 per cent Cu, 272 ppm Mo from 60 m.
• Drilled from the same pad as CDH013, CDH014 supports continuity of the high-grade, near-surface copper mineralization intersected in CDH013 in the northwestern part of the drill-defined footprint.
• Highest grades of 1.48 per cent Cu, 272 ppm Mo occur over 32 m from 60 m in microdiorite and magmatic-hydrothermal breccia, with individual two m samples returning up to 2.59 per cent Cu.
• The Cobrasco mineralized system remains open in multiple directions.

Joseph van den Elsen, Andina Copper president and chief executive officer, stated:

"Drill hole CDH014 confirms the continuity of the high-grade, near-surface mineralization intersected in CDH013, returning 76 m at 1.00 per cent Cu, 191 ppm Mo from 52 m downhole, including 32 m at 1.48 per cent Cu, 272 ppm Mo from 60 m downhole. Importantly, these two holes have extended the shallow, high-grade mineralization approximately 350 m northwest of earlier drilling.

"With multiple holes recently completed outside the drill defined footprint of approximately 1,300 m by 550 to 700 m footprint and drilling ongoing, we are accelerating exploration and further define the scale of this exciting high-grade, near-surface porphyry system."

Geology and mineralization

Drill hole CDH014

Hole CDH014 (azimuth 45 degrees; dip negative 80 degrees; final depth 565.95 m) was collared approximately 350 m northwest of the previous pad and drilled steeply northeast along the same northeast-southwest section as CDH012 and CDH013. The hole was designed to test the near-surface and vertical continuity of the mineralization intersected in CDH013.

CDH014 intersected saprolite and a transition zone to approximately 16 m downhole, underlain by oxidized intrusive breccia developed at the contact between rhyolite porphyry and microdiorite containing iron oxides after sulphides to approximately 52 m. Copper sulphide mineralization commences at approximately 52 m within microdiorite and magmatic-hydrothermal breccia and is represented by chalcopyrite-bornite, partially replaced by supergene chalcocite. Copper sulphides occur as disseminations, patches and hairline fracture fillings, locally accompanied by molybdenite. Supergene chalcocite was observed from approximately 52 m to 104 m, indicating a degree of supergene enrichment immediately below the base of oxidation. This interval hosts the highest copper grades intersected to date from this pad, including 32 m at 1.48 per cent Cu and 272 ppm Mo from 60 m, with individual two m samples returning 2.59 per cent Cu from 62 m, 2.27 per cent Cu from 64 m and 1.96 per cent Cu from 82 m.

Below approximately 104 m, mineralization continues within magmatic-hydrothermal breccia as disseminated chalcopyrite and pyrite with molybdenite veinlets and local sphalerite on fractures, before the breccia passes into quartz-eye rhyolite porphyry at approximately 130 m. Between approximately 130 m and 200 m, copper grades decrease within rhyolite porphyry carrying disseminated chalcopyrite and pyrite with molybdenite on fractures, consistent with the pattern observed in CDH013, where copper mineralization is weaker within the rhyolite porphyries than in the microdiorites and magmatic-hydrothermal breccia. From approximately 200 m, grades increase again within a fault zone and adjacent rhyolite porphyry carrying disseminated chalcopyrite and bornite, with bornite partly replacing chalcopyrite between approximately 246 m and 252 m. Below approximately 264 m, copper grades decrease to below 0.2 per cent Cu within rhyolite porphyry carrying trace disseminated chalcopyrite and pyrite with molybdenite in quartz veinlets. A lower zone of weaker copper mineralization, with chalcopyrite and bornite as disseminations and on fractures within sericite-altered rhyolite porphyry and an associated fault zone, is developed from approximately 364 m downhole.

The company's corporate presentation is available on-line.

Qualified person

Gustavo Zulliger, a consultant of Andina Copper 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. Gustavo Zulliger is a certified professional geologist with the American Institute of Professional Geologists (CPG No. 11165).

QA/QC (quality assurance/quality control)

CDH014 was collared with a PQ-size drill string and reduced to HQ at 128.05 m downhole, continuing to a final depth of 565.95 m. 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 for additional protection during transport. Full core boxes were then strapped closed before being transported to the Cobrasco core cutting facility in Quibdo. The drill core was cleaned where required, marked and photographed, prior to undergoing geotechnical and preliminary geological logging. All core segments were cut by diamond saw by Andina Copper technicians, other than the soft upper oxidized, near-surface intervals that could be cut and sampled using hand tools. All sampling was conducted in nominal two m 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 woven polypropylene sacks ready for transport. The core trays containing the remaining half-core are stored at the Andina Copper facility in Quibdo for additional technical measurements, including TerraSpec spectral analysis, magnetic susceptibility and rock-density measurements, and for follow-up detailed geological logging. From Quibdo, core samples were sent to the ALS sample preparation facility in Medellin. Prepared sample pulps were then forwarded to the ALS analytical laboratory in Lima, Peru. ALS is independent of the company. Samples were analyzed for gold using method Au-AA23, for multiple elements using method ME-MS61, and for overlimit values using method ME-OG62, including Cu-OG62 for copper. Coarse and fine rejects are routinely returned by ALS Medellin for storage at the Andina Copper storage facility. The company's QA/QC program includes the systematic insertion of certified reference materials, coarse and fine blanks, coarse-reject duplicates, and pulp duplicates into the sample stream. Each standard 80-sample submission comprises approximately 70 primary samples and 10 control samples, representing a control-sample insertion rate of approximately 12.5 per cent. Control-sample results are reviewed on a batch-by-batch basis to monitor analytical accuracy, potential contamination and precision. The company reviewed all analytical batches associated with drill hole CDH014 as part of its quality assurance and quality control (QA/QC) program. The review identified no issues that materially affected the reported drill intervals, and the company accepted all CDH014 analytical batches for reporting.

Table 1: Cobrasco project -- significant drill intercepts

About Andina Copper Corp.

Andina Copper is a unique South America-focused copper explorer listed on the TSX Venture Exchange (TSX-V: 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.

We seek Safe Harbor.