Copper One Resources Commences Third Drill Hole at Redonda Copper-Molybdenum Project

Vancouver, BC – October 2, 2026 – Leads & Copy – Copper One Resources Corp. has commenced drilling on the third planned drill hole, RED-26-03, as part of its fully funded 2,400-metre diamond drilling program at its 100%-owned Redonda Copper-Molybdenum Project. The project is located on West Redonda Island in British Columbia's Vancouver Mining Division.

Drill hole RED-26-03 is being drilled at an inclination of -75 degrees and is planned to reach a total downhole depth of approximately 470 metres.

The Company also announced the completion of drill hole RED-26-02, which was drilled at an inclination of -55 degrees to a total downhole depth of 425.8 metres. Previously reported on September 9, 2026, native copper was visually identified at approximately 40 metres downhole. Geological features and visual mineralization consistent with the targeted porphyry copper-molybdenum system were also observed beginning at approximately 20 metres downhole and through portions of RED-26-02. These visual observations are preliminary and have not been confirmed by laboratory analysis; they do not substitute for analytical results, and the Company is not making any representation regarding copper grade based on these observations.

"Commencing RED-26-03 marks continued progress in our 2,400-metre drill program at Redonda," said David Greenway, President and CEO of Copper One. "Completion of RED-26-02 provides additional core for geological logging, sampling and analysis as we evaluate the geometry and continuity of the targeted porphyry system. At Majuba Hill, site preparations are complete for our planned 4,000-foot (1,219-metre) Phase 2 drill program. Advancing both programs will provide the technical data needed to guide the next stages of exploration."

The Redonda project hosts an underexplored porphyry copper-molybdenum system within British Columbia’s Coast Suture Zone, a geological belt prospective for porphyry copper mineralization. The current drill program is testing priority targets developed through the integration of historical exploration data, airborne geophysics, recent field mapping, and geological interpretation. The 2026 exploration strategy is informed by the technical report on the Redonda Property prepared by W.B. Lennan, P.Geo., and filed under the Company’s SEDAR+ profile in March 2026. Mr. Lennan has reviewed the planned drill program and concurs with its objectives, targets, and design.

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

The Redonda Copper-Molybdenum Project comprises nine mineral claims covering approximately 2,746 hectares (6,786 acres) on West Redonda Island. Exploration conducted since the late 1960s has identified multiple copper-molybdenum mineralized zones that remain open along strike and at depth. Historical exploration by Teck Resources Ltd. in 1979 included nine NQ diamond drill holes totaling 1,681 metres (5,515 feet).

The current drilling is focused on evaluating the extent of the known mineralized system and testing priority targets identified through the Company’s integrated geological and geophysical interpretation. Recent field observations have identified an area that may represent a previously unrecognized mineralized zone exposed along a historic logging road east of the main trend. This area will be systematically mapped and sampled and may become an additional drill target, subject to analytical results.

Copper One is committed to working collaboratively with the Klahoose First Nation throughout the 2026 exploration campaign, emphasizing local employment, training opportunities, and the use of Klahoose-owned and affiliated businesses wherever practicable. The Company has engaged a Klahoose member for core splitting and will utilize the Klahoose crew boat for marine transportation. Ongoing communication with the Klahoose First Nation regarding exploration activities, work schedules, and project milestones will be maintained. Exploration activities will adhere to applicable cultural heritage protocols and environmental best practices.

The Redonda Copper-Molybdenum Project is a district-scale porphyry copper-molybdenum exploration project located within the highly prospective Coast Suture Zone. The project comprises nine mineral claims covering approximately 2,746 hectares (6,786 acres). Copper-molybdenum mineralization is most concentrated along a hornblende dike, particularly within brecciated zones. The geological setting shares certain characteristics with nearby porphyry systems, including the OKover copper-molybdenum deposit and the Gambier Copper deposit. Mineralization at nearby projects is not necessarily indicative of mineralization at Redonda.

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 – Standards of Disclosure for Mineral Projects.

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. The Company's flagship asset is the Majuba Hill Copper-Silver-Gold District in Nevada. Copper One also owns a 100% interest in the Redonda Copper-Molybdenum Project in British Columbia and holds an option to earn up to a 100% interest in the Redhill Property, also in British Columbia. Additionally, Copper One owns a 100% interest in the Sport Project in Utah.

Source: Copper One Resources Corp.