Mr. Ian Harris reports

COPPER GIANT EXTENDS THE RECENTLY DISCOVERED THIRD HIGH-GRADE ZONE AT MOCOA BY 250-METRES ALONG STRIKE WITH MD-052 INTERCEPTING 208-METRES GRADING 0.68% CUEQ* (0.47% CU AND 0.04% MO), STARTING AT 768-METRES

Copper Giant Resources Corp. has released assay results from drill hole MD-052, expanding the recently discovered porphyry-related high-grade mineralized zone at depth and southward toward the Estrella zone. This new intercept provides better constraints on copper-molybdenum grade distribution and confirms that this high-grade zone remains open laterally and at depth. Two drill rigs continue operating as part of Copper Giant's 14,000-metre resource expansion program at the flagship Mocoa copper-molybdenum project in Putumayo, Colombia.

"MD-052 builds directly on the success of MD-047 and MD-050, extending the recently discovered third high-grade zone and reinforcing the geometry of this emerging porphyry centre. The zone remains open laterally and at depth, supporting continued improvements to the copper and molybdenum grade profile. These results demonstrate strong continuity of mineralization and meaningful potential for future resource growth within this multiphase system. Notably, the high-grade trend also projects southward toward the La Estrella target, indicating potential extension of this zone into a shallower area and opening an important new front for expansion," said Edwin Naranjo Sierra, vice-president of exploration.

Hole MD-052 shares the same strategic objectives of previous hole MD-050:

1. To connect East Valley geology with the Mocoa porphyry system;
2. To extend at depth the high-grade Cu-Mo mineralization seen at the end of hole MD-047 (refer to news release dated July 30, 2025); and
3. To connect the high-grade copper-molybdenum mineralization observed in hole MD-046 (refer to news release dated May 6, 2025) to the recently discovered high grade mineralization of the East zone and strengthening the model that the high-grade corridor may continue south and connect with the Estrella zone.

These results build directly on the company's recent 2025 Mocoa mineral resource estimation update of inferred mineral resources of 12.7 billion pounds copper equivalent at an average grade of 0.51 per cent CuEq, including 7.6 billion pounds of copper at 0.31 per cent Cu and 1.0 billion pounds of molybdenum at 0.039 per cent Mo, within a total of 1.12 million tonnes.

Drilling continues with two rigs as the company advances the 2025/2026 drilling plan, which will focus on expanding this high-grade zone through targeted stepouts and directional drilling. This approach is designed to enhance efficiency and cost-effectiveness while enabling Copper Giant to test highly prospective areas outside of the current MRE footprint, further unlocking the full potential of Mocoa.

Hole MD-052

MD-052 was collared east of the previously drilled area at Mocoa, using the same permitted pad as holes MD-048 and MD-050 in the East Valley zone. The upper 400 metres of the hole intersected a strong chlorite altered late-stage and low-grade porphyry intrusion cutting a low-grade volcanic sequence of the Saldana formation, consistent with the transitional units observed elsewhere on the eastern flank of the system. Below this depth, the hole entered the characteristic Mocoa pyrite- to phyllic-halo alteration, with sericite-altered intermineral porphyry hosting multiple generations of D-type veinlets overprinting predominantly early B-type veinlets.

At 859 metres downhole, MD-052 intercepted a strongly potassic-altered (secondary biotite) early microdiorite porphyry, with dense stockwork-style A- and B-type veinlets marking the core of the mineralized system. Due to drill rig capacity, the hole was terminated in a brecciated porphyry exhibiting intense chlorite-sericite alteration and overprinted early potassic (K-feldspar) alteration. The breccia contains fragments completely obliterated due to the intensity of the hydrothermal alteration, with molybdenite and minor chalcopyrite occurring as matrix and veinlet infill.

Integrated with results from MD-046 (refer to news release dated May 6, 2025), MD-047 (refer to news release dated July 30, 2025) and MD-050 (refer to news release dated Oct. 7, 2025), MD-052 extends the recently discovered high-grade porphyry-related zone by approximately 200 metres at depth and 250 metres southward close to past hole M20, which was a short hole that did not reach this target zone. This southward and downward expansion suggests the system is more extensive than earlier drilling indicated, with mineralization remaining open in multiple directions.

Most importantly, the orientation and consistency of the high-grade trend clearly project toward La Estrella area, significantly reinforcing the geological interpretation that a second porphyry centre may be present south of the existing Mocoa resource footprint. This emerging vector not only highlights a previously untested target corridor but also underscores the potential multicentred porphyry nature of the Mocoa system, significantly expanding the exploration potential southward into an area where the system is expected to occur at shallower depths.

Qualified person and technical notes

Edwin Naranjo Sierra, vice-president of exploration for Copper Giant, is the designated qualified person within the meaning of National Instrument 43-101 (Standards of Disclosure for Mineral Projects), and has reviewed and approved the technical information in this news release. Mr. Naranjo holds an MSc in earth sciences, and is a fellow of the Australasian Institute of Mining and Metallurgy.

Mineralized zones at Mocoa are bulk porphyry-style zones, and drilled widths are interpreted to be very close to true widths.

Copper Giant operates according to a rigorous quality assurance and quality control protocol consistent with industry best practices. Core diameter is a mix of HQ and NQ depending on the depth of the drill hole. Diamond drill core boxes were photographed, sawed, sampled and tagged in maximum two-metre intervals, stopping in geological boundaries. Samples were bagged, tagged and packaged for shipment by truck from Copper Giant's core logging facilities in Mocoa, Colombia, to the ActLabs certified sample preparation facility in Medellin, Colombia. ActLabs is an accredited laboratory independent of the company. Samples are processed in the Medellin facilities where they are analyzed for copper, gold, silver, molybdenum, zinc and lead by four-acid digest atomic absorption analysis. The sample pulps are air freighted from Medellin to the ActLabs certified laboratory in Guadalajara, Mexico, where they are analyzed for a suite of 57 elements using four-acid digest and ICP-MS. To monitor the continuing quality of assay data and the database, Copper Giant has implemented quality assurance/quality control protocols, which include standard sampling methodologies, and the insertion of certified copper and molybdenum standard materials, blanks and duplicates (field, preparation and analysis) randomly inserted into the sampling sequence. QA/QC program also includes continuing monitoring of data entry, QA/QC reporting and data validation. No material QA/QC issues have been identified with respect to sample collection, security and assaying.

About Copper Giant Resources Corp.

Copper Giant is part of the Fiore Group, a private and well-established Canadian organization known for building successful, high-impact companies across the natural resource sector. Copper Giant was formed with a singular focus: to advance high-quality copper projects beyond resource definition -- responsibly, efficiently and with long-term positive impact.

The company is led by a team with uncommon experience, having taken some of the few major copper mines developed in the past two decades from discovery through to construction.

Copper Giant's current focus is the Mocoa copper-molybdenum deposit in southern Colombia, one of the largest undeveloped resources of its kind in the Americas. Recent exploration success has revealed potential well beyond its original footprint, highlighting Mocoa as a broader district-scale opportunity and the catalyst for the company's name and evolution.

Guided by the values of respect and responsibility and grounded in its good neighbour philosophy, Copper Giant is committed to creating enduring values for all stakeholders and playing a meaningful role in the global energy transition.

We seek Safe Harbor.