Mr. David Greenway reports

COPPER ONE ANNOUNCES FIRST ASSAYS PENDING FROM 2026 DRILL PROGRAM AS MHB-37B SURPASSES 2,400 FEET AT MAJUBA HILL, NEVADA

Drill hole MHB-37B has surpassed 2,400 feet (732 metres), while the first 1,760 feet (536 metres) of drill core has been submitted to ALS Laboratories in Reno, Nev., for geochemical analysis. With the initial assay results from Copper One Resources Corp.'s 2026 drilling program at its flagship Majuba Hill copper-silver-gold project in Pershing county, Nevada, now pending, the program continues to advance on schedule.

"Surpassing 2,400 feet in MHB-37B while submitting the first 1,760 feet of drill core for assay marks another important milestone in our 2026 drilling campaign at Majuba Hill," said David Greenway, president and chief executive officer. "With our first assays now pending, we are entering an exciting new phase of the program. MHB-37B is testing one of our highest-priority ExploreTech AI-assisted targets, and as drilling advances toward its planned depth, we look forward to evaluating the results while preparing the next holes in the program."

MHB-37B surpasses 2,400 feet with first assays pending

Drilling at MHB-37B remains in progress and has surpassed 2,389 feet (728 metres) toward its planned total depth of approximately 2,500 feet (762 metres). The first 1,760 feet (536 metres) of drill core has been submitted to ALS Laboratories in Reno, Nev., an independent accredited laboratory, for sample preparation and geochemical analysis. Assay results are pending and will be reported following receipt, review, and completion of the company's quality assurance and quality control procedures.

Chalcopyrite, pyrite and possible sphalerite were visually observed within the ALS Formation between approximately 800 feet (243.8 metres) and 1,100 feet (335.3 metres). The ALS Formation is the host rock for the rhyolite porphyry intrusions. Visual observations of sulphide minerals are preliminary in nature and should not be considered representative of mineral grades or widths.

MHB-37B is the initial ExploreTech AI-assisted core hole in the 2026 drill program. The hole is designed to reach approximately 2,500 feet (762 metres) and to test AI-driven modelling of geophysical data combined with breccia mapping from the spring campaign. The target follows up on historic drill holes that intersected significant copper-silver-gold mineralization.

Sampling, analytical methods and QA/QC (quality assurance/quality control)

Drill core samples from MHB-37B and surface rock samples were submitted to ALS Laboratories in Reno, Nev., an independent accredited laboratory, for sample preparation and geochemical analysis. The company's quality assurance and quality control (QA/QC) program includes the insertion of certified reference materials, blanks and duplicate samples into the sample stream at regular intervals. Laboratory procedures also incorporate internal quality control protocols. Surface rock-chip samples are selective by nature and may not be representative of the mineralization across the property.

About the Majuba Hill copper-silver-gold deposit, Nevada

Majuba Hill is Copper One's flagship copper, silver and gold exploration project, located in Nevada, U.S., one of the world's premier mining jurisdictions. Nevada was ranked the No. 1 mining jurisdiction globally in the Fraser Institute's 2022 Annual Survey of Mining Companies, underscoring the strategic importance of Majuba Hill's location in a stable, mining-friendly region with a long history of responsible mineral development.

The Majuba Hill property covers approximately 9,684 acres and is located about 113 road kilometres, or 70 miles, southwest of Winnemucca, Nev., and 251 kilometres, or 156 miles, northeast of Reno. The project is accessible by well-maintained county roads from the Imlay, Nev., exit on U.S. Interstate 80, followed by an approximately 23-mile drive west. Access to skilled personnel, roads, power and water are fundamental considerations in advancing mineral projects. Majuba Hill benefits from established infrastructure including road access, power availability, water and access to skilled personnel, factors that may reduce exploration and future development requirements compared with more remote projects. Majuba Hill is a historical producer with a substantial exploration database, including approximately 89,395 feet of drilling completed to date, which provides Copper One with a significant technical foundation for continuing exploration.

Exploration to date has identified a large copper-silver-gold mineralized system that remains open for additional evaluation. Further drilling and technical studies will be required to determine its extent, continuity and potential. However, further drilling, geological modelling and technical evaluation will be required to determine the extent, continuity and significance of mineralization at the project. Majuba Hill is located in Nevada, a leading mining jurisdiction, and benefits from scale, access, infrastructure and a substantial historical exploration database.

About Copper One Resources Corp.

Copper One Resources 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, AI 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 up to a 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 (VMS) 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 metals projects across North America.

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