Copper Giant Intersects 771 Metres of 0.54% CuEq* (0.33% Cu and 0.039% Mo) and Extends Cu-Mo Mineralization to the Southeast and at Depth.

Copper Giant Intersects 771 Metres of 0.54% CuEq* (0.33% Cu and 0.039% Mo) and Extends Cu-Mo Mineralization to the Southeast and at Depth. Canada NewsWire VANCOUVER, BC, Aug. 27, 2026 VANCOUVER, BC, Aug. 27, 2026 /CNW/ -- Copper Giant Resources Corp. ("Copper Giant" or the "Company") (TSXV: CGNT) (OTCQB: LBCMF) (FRA: 29H0) today reports assay results from in-fill holes MD-068 and MD-070 at its flagship Mocoa copper-molybdenum porphyry project in Putumayo, Colombia. MD-068, drilled beneath the vertical shallower holes completed by Ingeominas, returned a near-surface high-grade zone with 157 metres of 0.69% CuEq* (0.44% Cu and 0.048% Mo) from 145 metres and deeper zone below the past holes with 154 metres of 0.54% CuEq* (0.32% Cu and 0.041% Mo) from 526 metres. MD-070, an in-fill daughter hole, intersected 771 metres of continuous mineralization grading 0.54% CuEq* (0.33% Cu and 0.039% Mo), including a higher-grade core of 102 metres of 0.87% CuEq* (0.54% Cu and 0.063% Mo). The pattern of the 2026 program keeps expanding mineralization and reproducing the grade model that will underpin the anticipated upcoming Preliminary Economic Assessment ("PEA"). Highlights MD-068 extends mineralization below the historic drilling: 154 metres of 0.54% CuEq* (0.32% Cu and 0.041% Mo) from 526 metres (Table 1). Hole ended at planned depth still in mineralization Better grade at depth: alteration and veining in MD-068 intensify downhole toward the assemblages that form closest to the heat source of a porphyry system. MD-070 reproduces the resource model at infill spacing: 771 metres of continuous mineralization grading 0.54% CuEq* (0.33% Cu and 0.039% Mo), including a higher-grade core of 102 metres of 0.87% CuEq* (0.54% Cu and 0.063% Mo) from 396 metres (Table 1). It is the second daughter hole from the MD-064 platform, which has now produced close to 6,000 metres of drilling in three directions from one pad, reducing drill-rig mobilization Near-term catalyst — the Mocoa PEA: all workstreams are advancing on plan and the Company remains on track to deliver the PEA in the fourth quarter of 2026. Drilling continues at La Estrella: 2,170 metres completed to date; assays pending  MD-068 is the hole I would look at twice. It sits below the vertical holes Ingeominas drilled decades ago, and it carries better grade at depth than the drilling above it. Those holes stopped where the technology of the day stopped, not where the system stopped. MD-070 does the other half of the job: it came in slightly above the grade model, which tells us the model behind the upcoming PEA is behaving." – Edwin Naranjo Sierra, Vice-President of Exploration. Hole MD-068 Copper Giant uses directional drilling to steer multiple daughter holes from a single drill pad, testing several targets without building new pads or roads in Mocoa's steep terrain. This delivers more geological information per metre at lower cost and with less surface disturbance and accelerates the conversion of resources from Inferred to Indicated ahead of the PEA. Daughter holes are drilled to a planned length and are typically still in mineralization when completed, by design. Hole MD-068 was completed as a directional daughter hole from mother hole MD-067, kicked off at 145 metres and steered east-southeast to test the southeast of the Mocoa system at depth. This sector had previously been tested only by the vertical holes completed by Ingeominas (M16, M18 and M20), which bottomed at approximately 400 metres. Those holes were drilled with the technology of their day and stopped well above the depths reached here, leaving the deeper part of the system in this corner of the deposit untested. Hole Hole Type Kick-off depth (m) From (m) To (m) Interval (m) Cu (%) Mo (%) CuEq* (%) Release date MD-067 Mother 0.0 0.0 145.30 145.30 0.12 0.005 0.15 August 31, 2026 97.00 145.30 48.30 0.30 0.01 0.34 117.00 145.30 28.30 0.38 0.01 0.42 MD-068 Daughter 145.30 145.30 689.63 544.33 0.28 0.03 0.45 Including 145.30 302.59 157.29 0.44 0.05 0.69 and including 195.43 300.59 105.16 0.47 0.06 0.80 and including 526.45 680.93 154.48 0.32 0.04 0.54 June 22, 2026 and including 611.84 678.93 67.09 0.37 0.04 0.60 MD-064 Mother 0.0 1,206 1,206 0.30 0.022 0.42 Including 155 1,206 1,052 0.34 0.024 0.46 and including 155 641 486 0.41 0.029 0.57 and including 552 668 115 0.34 0.058 0.65 and including 1,001 1,181 180 0.36 0.015 0.44 and including 1,001 1,074 72 0.51 0.008 0.55 MD-070 Daughter 211.40 211.40 982.30 770.90 0.33 0.04 0.54 August 31, 2026 Including 211.40 908.94 697.54 0.35 0.04 0.56 and including 233.40 546.56 313.16 0.46 0.05 0.71 and including 284.43 498.56 214.13 0.51 0.05 0.77 and including 396.15 498.56 102.41 0.54 0.06 0.87 and including 782.07 834.88 52.81 0.60 0.04 0.83 Table 1 – Assay results for drill holes MD-068 and MD-070. *Copper equivalent (CuEq) for drill hole interceptions is calculated as: CuEq (%) = Cu (%) + 5.278 × Mo (%), utilizing metal prices of Cu - US$4.00/lb and Mo - US$20.00/lb and metal recoveries of 90% Cu and 95% Mo. Grades are uncut. Mineralized zones at Mocoa are bulk porphyry-style zones and drilled widths are interpreted to be very close to true widths. Copper equivalent (CuEq*) values were calculated from unrounded assay values; therefore, reported totals may not reconcile exactly due to rounding. Directional daughter hole MD-068 was drilled from mother hole MD-067, and directional daughter hole MD-070 was drilled from mother hole MD-064. Collar coordinates for MD-067 and MD-068, which share a platform, are 313,644E, 137,557N and 1,737 m.a.s.l.; MD-067 has an azimuth of 120° and a dip of -77° and MD-068 an azimuth of 88° and a dip of -67°. Collar coordinates for MD-070 are 314,014E, 137,980N and 1,720 m.a.s.l., with an azimuth of 273° and a dip of -47°. Coordinates are in UTM Zone 18N, WGS84 datum. The hole was drilled through the same quartz-diorite and dacite porphyries that host the deposit elsewhere at Mocoa. What changes with depth is the alteration. The upper part of the hole carries the sericite-rich alteration typical of the outer parts of a porphyry system; below about 300 metres the rock passes into potassic alteration, the assemblage that forms closest to the heat source that drives these deposits. Veining follows the same trend, becoming denser downhole and adding the high-temperature quartz and biotite-magnetite veins that mark the core of a porphyry. MD-068 was drilling toward the center of a system rather than away from one, which is why grade improves with depth here instead of fading. MD-068 returned a near-surface high-grade interval of 157 metres of 0.69% CuEq* (0.44% Cu and 0.048% Mo) from 145 metres and a second deeper (below the past holes) interval of 154 metres of 0.54% CuEq* (0.32% Cu and 0.041% Mo) from 526 metres, including 67 metres of 0.60% CuEq* (0.37% Cu and 0.043% Mo). Logged copper and molybdenum sulfide contents are higher in the deeper interval than in the shallower one, in step with the change in alteration and veining. Mother hole MD-067 carries the assays from surface to 145 metres and returned 145 metres of 0.15% CuEq* (0.12% Cu and 0.005% Mo), including 28 metres of 0.42% CuEq* (0.38% Cu and 0.007% Mo) from 117 metres. The first 117 metres of the hole are weathered, leached rock — the natural cap that sits above a the Mocoa porphyry deposit at surface. The 28-metre interval immediately beneath that cap carries its copper mainly as chalcocite rather than chalcopyrite, the signature of a supergene blanket where copper leached from above has been redeposited. Fresh sulfide mineralization begins below 138 metres. Assays for the remainder of MD-067, which was completed to 756 metres, are pending. Hole MD-070 Hole MD-070 was completed as a directional daughter hole from mother hole MD-064 (refer to news release dated June 22, 2026), kicked off at 211 metres and steered due west. It is the second daughter hole drilled from that platform, after MD-066 (refer to news release dated July 28, 2026); between them, the three holes have delivered close to 6,000 metres of drilling in three separate directions from one pad, without a new road or a new platform. MD-070 forms part of the Company's infill drilling and resource-conversion strategy within the current MRE¹ footprint and was designed to test the grade and continuity of the resource model at tighter drill spacing, the same model that will underpin the upcoming PEA. The hole is hosted almost entirely in dacite porphyry and passes into hydrothermal breccia over its lowest 150 metres. Alteration through the hole is sericite-rich with pervasive silica, the style that forms above and outboard of a porphyry core, which is consistent with where MD-070 sits in the deposit. MD-070 returned broad and continuous copper-molybdenum mineralization over essentially its entire assayed length. The hole intersected 771 metres of 0.54% CuEq* (0.33% Cu and 0.039% Mo) from 211 metres downhole, including 698 metres of 0.56% CuEq* (0.35% Cu and 0.041% Mo), 313 metres of 0.71% CuEq* (0.46% Cu and 0.047% Mo) and 214 metres of 0.77% CuEq* (0.52% Cu and 0.048% Mo), with a higher-grade core of 102 metres of 0.87% CuEq* (0.54% Cu and 0.063% Mo) from 396 metres (Table 1, Figure 2). That core is t intensely veined (B-, BMQ and C-type) . These grades are consistent with, and locally exceed, the values modelled by the current MRE block model¹, indicating that the resource model is effectively predicting both grade distribution and mineralized continuity in Mocoa. A further interval of 53 metres of 0.83% CuEq* (0.60% Cu and 0.045% Mo) was returned from 782 metres, below the principal interval and in ground that passes into the hydrothermal breccia, extending the third breccia corridor recently announced (refer to news release dated June 22, 2026). Engagement of BTV The Company further reports that it has entered into an agreement (the "BTV Agreement") with Milky Way Marketing Inc. and Blue Sun Productions Inc., operating collectively as BTV – Business Television ("BTV"), pursuant to which BTV will provide media, marketing and communications services in support of the Company's broader communications strategy. The services are expected to commence in September 2026 and continue for a period six months. Aggregate expenditures under the BTV Agreement are anticipated to be up to C$400,000. The Company will pay BTV total cash consideration of approximately C$320,000, comprised of C$117,700 and US$146,000, plus applicable taxes, from the Company's general working capital. Fifty percent is payable upon signing and the remaining 50% is payable on October 1, 2026. BTV is a privately held media, marketing, and communications business based in Surrey, British Columbia. BTV and its principals are arm's length to the Company and have no interest, directly or indirectly, in the Company or its securities, nor any right or intent to acquire such an interest. There are no performance factors affecting BTV's compensation, and BTV will not receive any securities of the Company as compensation under the BTV Agreement. The BTV Agreement remains subject to acceptance by the TSX Venture Exchange. About BTV For 27+ years, BTV has been a capital market focused TV production and Digital Marketing Agency helping companies reach investors, advisors and institutions. BTV combines unique content creation with major distribution services on top tier networks including Bloomberg, CNBC, FOX Business News and financial sites, helping companies increase brand awareness to a national retail and institutional investor audience. 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 ("NI 43-101") 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 (FAusIMM). Mr. Naranjo is not independent of the Company. The mineralization reported in MD-068 below the level at which the historic drilling ended lies outside the current resource footprint and is not included in the current Mineral Resource Estimate¹. No mineral resource has been estimated for that material, it is not included in the PEA now in progress, and there is no assurance that further drilling will support its inclusion in any future update of the Mineral Resource Estimate. Copper Giant operates according to a rigorous Quality Assurance and Quality Control (QA/QC) protocol consistent with industry best practices. For surface samples, 2.5kg of material is taken on each outcrop using chip or channel techniques. Samples are taken by well-trained field helpers supervised by the geologist of the company. 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 2-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 4-Acid digest Atomic Absorption (AA) analysis. Where the copper result exceeded the upper detection limit of that method, the copper grade reported is the over-limit assay by the 8-TD-AA method. 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 4-Acid digest and ICP-MS. In order to monitor the ongoing quality of assay data and the database, Copper Giant has implemented QA/QC protocols which include standard sampling methodologies, 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 ongoing 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. Reported intervals are length-weighted composites of original core samples over the stated depths, expressed as metres downhole. Each hole is composited within its own hole identifier; no reported interval spans two holes. Inferred Mineral Resources are considered too speculative geologically to have economic considerations applied to them that would enable them to be categorized as Mineral Reserves. There is no certainty that all or any part of the Inferred Mineral Resources will be upgraded to an Indicated or Measured category. *Copper equivalent (CuEq) for drill hole interceptions is calculated as: CuEq (%) = Cu (%) + 5.278 × Mo (%), utilizing metal prices of Cu - US$4.00/lb and Mo - US$20.00/lb and metal recoveries of 90% Cu and 95% Mo. 1 Notes on the MRE of the project 1. The MRE was completed by Kevin Hon, B.Sc., P.Geo., Senior Resource Geologist, and Warren Black, M.Sc., P.Geo., Senior Consultant: Mineral Resources and Geostatistics, both of APEX. Mr. Hon and Mr. Black are independent Qualified Persons, as defined by NI 43-101, and are responsible for the completion of the Mineral Resource Estimate, with an effective date of November 18, 2025. Michael Dufresne, M.Sc., P.Geo., President & CEO of APEX, completed a peer review of the estimate. 2. Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability. 3. The estimate of Mineral Resources may be materially affected by environmental, permitting, legal, title, taxation, socio-political, marketing, or other relevant issues. 4. The Inferred Mineral Resource in this estimate has a lower level of confidence than that applied to an Indicated Mineral Resource and must not be converted to a Mineral Reserve. It is reasonably expected that the majority of the Inferred Mineral Resource could potentially be upgraded to an Indicated Mineral Resource with continued exploration. 5. The Mineral Resources were estimated in accordance with the Canadian Institute of Mining, Metallurgy and Petroleum (CIM), CIM Standards on Mineral Resources and Reserves, Definitions (2014) and Best Practices Guidelines (2019) prepared by the CIM Standing Committee on Reserve Definitions and adopted by the CIM Council. 6. Economic assumptions used include US$4.00/lb Cu, US$20.00/lb Mo, process recoveries of 90% for Cu and 95% for Mo, a US$10/t processing cost, G&A costs of US$1.00/t, and a 3% NSR royalty. 7. CuEq* values are calculated using a Cu-to-Mo value ratio of 1:5.278, incorporating both metal prices and metallurgical recoveries. 8. The constraining pit optimization parameters include a US$2.5/t mining cost for both mineralized and waste material and 45° slopes. Pit-constrained Mineral Resources are reported at a cutoff of 0.25% CuEq*. About the Mocoa Porphyry System The Mocoa Project is located in Colombia's Department of Putumayo, approximately 10 kilometres from the town of Mocoa in the country's south. Copper Giant controls more than 128,300 Ha of district-scale tenure through granted titles and applications, covering a significant portion of the Jurassic porphyry belt—an underexplored and highly prospective metallogenic corridor within the northern Andes. Mocoa was first identified in 1973 through a regional geochemical survey conducted by the United Nations and the Colombian government. Follow-up programs between 1978 and 1983 included geological mapping, IP and magnetic geophysics, surface sampling, drilling, and metallurgical testing. Subsequent drilling by B2Gold in 2008 and 2012 refined the geological interpretation and confirmed the large scale of the system. The deposit is hosted in Middle Jurassic dacite and quartz-diorite porphyries intruding andesitic to dacitic volcanics of the Central Cordillera, a 30-kilometre-wide tectonic belt that extends into Ecuador and also contains major porphyry systems such as Mirador, Warintza, San Carlos, and Panantza. Mocoa exhibits classic porphyry-style zonation with a potassic core surrounded by sericite and propylitic alteration. Mineralization consists principally of disseminated chalcopyrite and molybdenite, accompanied locally by bornite and chalcocite, and is associated with stockwork veining and hydrothermal breccias. A distinguishing geological feature of Mocoa is the presence of a fertile magmatic window spanning roughly ten million years, a prolonged and unusually productive interval of magma generation and evolution that is not commonly observed in other Jurassic porphyry systems within the same belt. This extended fertile period provides a compelling explanation for the system's large metal endowment, broad alteration footprint, and overlapping intrusive and hydrothermal events. The deposit demonstrates more than 1,100 metres of vertical continuity, with multiple intrusive phases, brecciation episodes, and vein generations reflecting a dynamic and long-lived magmatic–hydrothermal evolution, likely influenced by more than one porphyry center. Mocoa remains open along several directions and several satellite targets across the broader land package support the interpretation of a district-scale mineralized system. Mocoa's Mineral Resource Estimate¹ comprises Inferred resources of 12.7 billion pounds (Blbs) copper-equivalent (CuEq*) at an average grade of 0.51% CuEq*, including 7.7 Blbs of copper at 0.31% Cu and 1.0 Blbs of molybdenum at 0.039% Mo, within 1,120 million tonnes (Mt). 1 For further information refer to the NI 43-101 Technical Report, entitled "Technical Report and Updated Mineral Resource Estimate for The Mocoa Project, Putumayo Department, Colombia", dated January 8, 2026, prepared by Michael Dufresne (P.Geo, P.Geol, MSc), Warren Black (MSc, P.Geo), Kevin Hon (BSc, P.Geo) and Chester de Leon (P.Eng), with an effective date of December 23, 2025. About Copper Giant Copper Giant Resources Corp. 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 successfully 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 Neighbor philosophy, Copper Giant is committed to creating enduring values for all stakeholders and playing a meaningful role in the global energy transition. Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release. This news release includes forward-looking statements that are subject to risks and uncertainties. All statements within, other than statements of historical fact, including statements regarding: the BTV Agreement, including the anticipated commencement and duration of the services to be provided thereunder, the timing and amount of payments and aggregate expenditures contemplated thereby, and the acceptance of the BTV Agreement by the TSX Venture Exchange; benefits of the Company's directional drilling program; the assay results of drill holes MD-067, MD-068 and MD-070; the potential for mineralization below the historic drilling in the southeast of the Mocoa deposit to support resource growth or to be evaluated in a future update of the mineral resource estimate; the Company's intention to carry out further drilling in that sector and the timing of that drilling; the outcome of the Company's current resource expansion strategy; the timing, completion and results of the planned updated mineral resource estimate, metallurgical studies and Preliminary Economic Assessment (PEA); the results of ongoing drilling; and other activities and achievements of the Company, including, but not limited to, the timing and success of the advancement of the Mocoa Project and the expansion of the Mocoa resource base, are to be considered forward-looking statements. Copper Giant believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, including assumptions regarding the accuracy and reliability of assay, geological and technical information; the interpretation of drilling results and geological continuity; the availability of personnel, equipment, contractors, funding and other resources required to advance exploration and technical studies, the timely completion of drilling and assaying; and general economic, market, political and regulatory conditions. Such statements are not guarantees of future performance and actual results or developments may differ materially from those in forward-looking statements. Factors that could cause actual results to differ materially from those in forward-looking statements include risks that the BTV Agreement may not receive TSX Venture Exchange acceptance or that the anticipated services may not commence or be provided as contemplated, market prices and volatility in the market price of the Company's common shares, exploitation and exploration successes, uncertainty of reserve and resource estimates, risks of not achieving production, continued availability of capital and financing, processes, permits and filing requirements, risks related to operations in foreign and developing countries and compliance with foreign laws, including risks related to changes in foreign laws and changing policies related to mining and local ownership requirements in Colombia, and general economic, market, political or business conditions and regulatory and administrative approvals. There can be no assurances that such statements will prove accurate and, therefore, readers are advised to rely on their own evaluation of such uncertainties. Copper Giant does not assume any obligation to update any forward-looking statements. SOURCE COPPER GIANT RESOURCES CORP. View original content to download multimedia: http://www.newswire.ca/en/releases/archive/August2026/27/c7201.html Contact: Additional Information: Ian Harris, President and Chief Executive Officer, [email protected], +1 303 956 2944; Tetiana Konstantynivska, Vice President Investor Relations, [email protected], +1 778 829 8455