Mr. David Greenway reports

COPPER ONE COMMENCES FULLY FUNDED 2,400-METRE DIAMOND DRILL PROGRAM AT REDONDA COPPER-MOLYBDENUM PROJECT

Diamond drilling has commenced at Copper One Resources Corp.'s 100-per-cent-owned Redonda copper-molybdenum project located on West Redonda Island in the Vancouver mining division of British Columbia, marking the start of the company's fully financed 2,400-metre 2026 exploration program designed to expand and better define a large porphyry copper-molybdenum system.

David Greenway, chief executive officer of Copper One Resources, commented: "We are excited to have commenced drilling at Redonda while continuing to advance our ongoing drill program at our flagship Majuba Hill copper-silver-gold project in Nevada. The start of this fully funded program at Redonda marks an important milestone for Copper One and provides the opportunity to test the southern extension of the known copper-molybdenum system, further evaluate its geometry and continuity, and potentially expand the mineralized footprint. With drilling now under way at two highly prospective North American copper projects, Copper One is well positioned to generate a steady pipeline of exploration results and create long-term value for shareholders."

Redonda hosts a large, underexplored porphyry copper-molybdenum system within British Columbia's Coast Suture zone, a prolific geological belt known for significant porphyry copper deposits. Building upon historical drilling, trenching, airborne geophysical surveys and recent field mapping, the fully financed 2026 drill program has been designed to target the southern extension of the known mineralized system and further define its geometry and continuity.

Redonda complements the company's flagship Majuba Hill project in Nevada, providing shareholders with exposure to two district-scale copper systems at a time of growing global demand driven by electrification, artificial intelligence infrastructure, data centres, defence and grid modernization.

The company has finalized drill planning and logistics, with four initial drill sites surveyed and marked, with drilling now under way. The 2026 program is designed to complete approximately 2,400 metres (7,874 feet) of fully financed diamond drilling, with the potential for additional drill holes depending on results.

To execute the 2026 drill program, Copper One has engaged Paradigm Drilling Ltd., which has deployed a Boyles T-75 hydraulic, track-mounted diamond drill equipped with NQ tooling and capable of testing targets to depths exceeding 600 metres (1,969 feet).

The 2026 exploration strategy is based on the technical report on the Redonda property prepared by W.B. Lennan, PGeo. Mr. Lennan has reviewed the planned drill program, and concurs with its objectives, drill targets and design.

The Redonda copper-molybdenum project comprises nine mineral claims covering approximately 2,746 hectares (6,786 acres) on West Redonda Island in British Columbia's Vancouver mining division. The property hosts a large porphyry copper-molybdenum system that has been explored intermittently since the late 1960s through geological mapping, geochemical sampling, geophysical surveys, trenching and diamond drilling. Historical exploration by Teck Resources Ltd. (formerly Teck Corp.) in 1979 included nine NQ diamond drill holes totalling 1,681 metres (5,515 feet) while subsequent operators completed additional drilling, trenching and airborne geophysical surveys that further advanced the understanding of the mineralized system. Historical exploration has identified multiple copper and molybdenum mineralized zones that remain open along strike and at depth, providing the basis for the 2026 drill program. The company's National Instrument 43-101 technical report, filed in March, 2026, incorporates historical exploration data, recent drilling results and updated geophysical information that have been used in planning the 2026 drill program.

The 2026 drill program has been designed to build upon the extensive historical exploration completed on the property, including previous diamond drilling, trenching and airborne geophysical surveys. The program will test the southern extension of the known copper-molybdenum mineralized system while refining the orientation, geometry and continuity of the porphyry-related mineralization. The company believes these targets represent a logical next step in evaluating the property's district-scale exploration potential.

The primary objectives of the 2026 drill campaign include:

• Complete approximately 2,400 metres (7,874 feet) of diamond drilling;
• Test four initial drill platforms, with flexibility to add additional holes where warranted;
• Follow the known copper-molybdenum mineralization to the south using integrated airborne geophysical data, historical trenching and previous shallow drilling;
• Expand the currently recognized strike length of the mineralized system to more than one kilometre (0.62 mile);
• Better define the orientation, geometry and continuity of the mineralized system to support future stepout drilling.

Particular emphasis will be placed on the southern extension of the system, where recent field observations have identified what may represent a previously unrecognized mineralized zone exposed along a historic logging road east of the main trend. This newly exposed mineralized zone will be systematically mapped and sampled during the field program, and may become an additional drill target, subject to analytical results.

To support the program, Copper One has engaged experienced porphyry copper geologist B. Augsten, PGeo, who will oversee the majority of geological logging during the campaign.

Klahoose First Nation

The company further announces that it has made it a priority to work in close collaboration with the Klahoose First Nation throughout the 2026 exploration campaign. Copper One is committed to prioritizing local employment, training opportunities, and the engagement of Klahoose owned and affiliated businesses wherever practicable. As part of this commitment, the company has engaged a Klahoose member to perform core splitting and will utilize the Klahoose crew boat for marine transportation during the program.

Throughout the campaign, the company will maintain continuing engagement with Klahoose through regular communication on exploration activities, work schedules and project milestones, while incorporating community feedback into field operations where appropriate. All exploration activities will be conducted in accordance with cultural heritage protocols, environmental best practices and the company's commitment to responsible mineral exploration within Klahoose traditional territory.

The company will continue to co-ordinate site access, health and safety, and environmental monitoring in collaboration with Klahoose representatives, and explore additional opportunities to support long-term capacity building, skill development and meaningful economic participation as exploration advances.

Update to previously announced special warrant offering

Furthermore, the company provides the following update regarding its previously announced special warrant offering.

As announced amended on July 20, 2026, announcing the amended terms of the non-brokered private placement of up to 19.5 million special warrants of the company at a price of 44 cents per special warrant for aggregate gross proceeds of up to $8.58-million, the company announces that it has further amended the pricing terms of the offering. The subscription price per special warrant has been reduced from 44 cents to 40 cents, resulting in revised aggregate gross proceeds of up to $7.8-million (reduced from $8.58-million). The number of special warrants issuable under the offering remains unchanged at up to 19.5 million.

In connection with the repricing, the exercise price of the share purchase warrants underlying each unit issuable upon conversion of the special warrants has been amended from 55 cents to 50 cents per common share. All other terms of the offering, including the conversion terms of the special warrants, the composition of the units, the warrant term, the acceleration provisions, the 10-per-cent blocker provision and the intended use of proceeds, remain unchanged from those described in the company's news release dated July 6, 2026.

The company may pay finders' fees on the offering within the amount permitted by the policies of the Canadian Securities Exchange.

The special warrants are expected to be issued pursuant to exemptions from the prospectus requirements under Canadian securities laws, including the accredited investor, $150,000 minimum investment or other relevant exemptions under National Instrument 45-106 (Prospectus Exemptions). Prior to the filing of a prospectus supplement and the automatic conversion of the special warrants, the securities issued under the offering will be subject to a four-month hold period from the date of closing of the offering in addition to any other restrictions under applicable law.

About Redonda

The Redonda copper-molybdenum project is a district-scale porphyry copper-molybdenum exploration project located on West Redonda Island in British Columbia's Vancouver mining division. The project comprises nine mineral claims covering approximately 2,746 hectares (6,786 acres) and is situated within the highly prospective Coast Suture zone, a geological belt known for significant porphyry copper and skarn mineralization.

Redonda lies within the Coast Suture zone between the Wrangellia terrane and the Coast Plutonic complex. Early Cretaceous dioritic intrusions of the Coast Plutonic complex are cut by at least three later intrusive phases: (i) a quartz plug; (ii) a wide, hornblende-rich dike locally brecciated over approximately 600 metres (1,969 feet) of exposed length; and (iii) several smaller feldspar dikes near the southwestern margin of the hornblende body. Copper-molybdenum mineralization is most concentrated along the hornblende dike, particularly within brecciated zones. The geological setting shares several characteristics with nearby porphyry systems, including the OKover copper-molybdenum deposit located approximately 34 kilometres (21 miles) to the southeast (north of Powell River) and the Gambier copper deposit in Howe Sound.

Qualified person

The scientific and technical information contained in this news release has been reviewed and approved by Larry Segerstrom, MSc (geology), CPG, a non-independent consulting geologist to the company, a qualified person as defined by National Instrument 43-101 (Standards of Disclosure for Mineral Projects).

About Copper One Resources Corp.

Copper One is focused on identifying, acquiring and advancing high-potential copper, copper-silver-gold and copper-molybdenum projects to help meet the growing global demand for critical metals required for electrification, artificial intelligence infrastructure and data centres, renewable energy, defence, and the modernization of power systems.

The company's flagship asset is the Majuba Hill copper-silver-gold district, located approximately 156 miles (251 kilometres) from Reno, Nev. Majuba Hill is an exploration-stage porphyry copper project situated in a premier mining jurisdiction with excellent infrastructure, where continuing exploration is focused on evaluating the scale and continuity of a large copper-silver-gold mineralized system.

Copper One also owns a 100-per-cent interest in the Redonda copper-molybdenum project, located northeast of Campbell River in British Columbia's Vancouver mining division. The district-scale project comprises approximately 2,746.46 hectares (6,786 acres) across nine mineral claims and hosts a porphyry-style copper-molybdenum system within the highly prospective Coast Suture zone, a geological belt known for significant porphyry copper and skarn mineralization. The company believes Redonda has the potential to become a significant long-term exploration asset as systematic exploration continues to evaluate the scale and continuity of the mineralized system.

In addition, Copper One holds an option to earn an up-to-100-per-cent interest in the Redhill property, located south of Ashcroft, B.C., adjacent to the Trans-Canada Highway. The 4,736-hectare (11,704-acre) property hosts volcanogenic massive sulphide mineralization prospective for copper, zinc, silver and gold while also demonstrating potential for epithermal gold mineralization.

Subject to completion of the proposed transaction, Copper One will also own the Sport project in Utah, expanding the company's portfolio of North American copper exploration assets.

Copper One is advancing its portfolio through systematic exploration, modern geological modelling and disciplined technical evaluation. The company remains committed to responsible exploration practices, technical transparency and creating long-term shareholder value through disciplined exploration and the advancement of critical metal projects across North America.

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