Copper One Resources Corp. Commences Expanded Phase 2 Drilling Program at Majuba Hill Copper-Silver-Gold Project

Vancouver, BC – October 23, 2026 – Leads & Copy – Copper One Resources Corp. announced the commencement of diamond core drilling at its Majuba Hill Copper-Silver-Gold Project in Pershing County, Nevada. The 100%-owned flagship project will undergo an expanded Phase 2 drilling program comprising up to 10,000 feet of HQ/PQ diamond core drilling.

The Phase 2 Program aims to accelerate the systematic testing of priority targets at Majuba Hill, supporting the Company's objective of advancing the Project towards a maiden mineral resource estimate prepared in accordance with National Instrument 43-101. To date, over 90,000 feet of drilling has been completed at Majuba Hill across more than 100 drill holes. Assay results from the recently concluded 2026 Phase 1 drill program are still pending and will be released once received, reviewed, and validated.

David Greenway, President and Chief Executive Officer of Copper One, stated that the company is advancing target testing through the expanded Phase 2 program. While Phase 1 assay results are pending, the collected geological information is guiding ongoing exploration efforts. Evolve's personnel, equipment, and operational experience, along with its EVX Connect platform, are providing the technical team with timely drilling data and core photographs to facilitate informed decision-making as the program progresses. Copper One anticipates reporting Phase 1 assay results and providing further updates from Phase 2 drilling.

The expanded Phase 2 program of up to 10,000 feet of diamond core drilling includes an initial approximately 5,000 feet contracted to Evolve, utilizing one portable HQ/PQ core drill. Continuous, two-shift drilling operations are planned on a 24-hour, seven-day-per-week basis. The maximum planned hole depth under the initial scope is approximately 1,700 feet, with final collar locations, azimuths, inclinations, and depths to be determined by the Company’s technical team. Real-time operational visibility will be provided through Evolve’s EVX Connect platform.

Copper One engaged Evolve Exploration Nevada, LLC (“Evolve”) to undertake the Phase 2 diamond core drilling. Each Evolve drill rig operates on EVX Connect, Evolve’s real-time operational platform. Through EVX Connect, Copper One expects to receive live drilling metrics, digital PLOD reporting, drill-hole coordinate tracking, streamlined invoicing, and high-quality photographs of drill core as it is recovered. Information will be accessible via web and mobile interfaces, offering the Company’s technical and management teams timely visibility into drilling progress and field operations.

The Majuba Hill Copper-Silver-Gold Project, located in Pershing County, Nevada, comprises approximately 9,684 acres and is situated about 70 miles southwest of Winnemucca and 156 miles northeast of Reno. The project benefits from excellent infrastructure, including year-round road access, nearby electrical power, water, and access to a skilled mining workforce. Majuba Hill is a past-producing copper mine with an extensive exploration database, including approximately 89,395 feet of historical drilling, providing a technical foundation for ongoing exploration focused on further defining the extent and economic potential of the mineralized system.

Exploration has outlined a large copper-silver-gold hydrothermal mineralized system that remains open for expansion. Current exploration is concentrating on advancing the Company's geological model through systematic drilling, geological mapping, geochemical sampling, and structural interpretation to evaluate the scale, continuity, and significance of mineralization. Additional drilling and technical studies will be required to further define the extent and economic potential of the mineralized system.

The scientific and technical information in this news release has been reviewed and approved by Larry Segerstrom, M.Sc. (Geology), CPG, a non-independent consulting geologist to the Company and a Qualified Person as defined by National Instrument 43-101. Copper One Resources Corp. focuses on identifying, acquiring, and advancing high-potential copper, copper-silver-gold, and copper-molybdenum projects to help meet global demand for critical metals used in electrification, AI infrastructure, data centres, renewable energy, defence, and power-system modernization.

In addition to the Majuba Hill project, Copper One owns a 100% interest in the Redonda Copper-Molybdenum Project in British Columbia and has an option to earn up to a 100% interest in the Redhill Property, also in British Columbia. The company also owns a 100% interest in the Sport Project in Utah through its subsidiary, Rooinek Mining Corp. Copper One is advancing its portfolio through systematic exploration, modern geological modeling, and disciplined technical evaluation, with a commitment to responsible exploration practices and technical transparency.

Source: Copper One Resources Corp.