Copper One Resources Launches Fully Funded 2,400-Metre Diamond Drilling Campaign at Redonda Copper-Molybdenum Project

Strategic Focus of the 2026 Redonda Drilling Program

Copper One Resources has structured the 2026 exploration program to systematically enhance understanding of the Redonda Copper-Molybdenum Project’s mineral potential. The program builds on extensive historical exploration since the late 1960s, which includes geological mapping, geochemical sampling, geophysical surveys, trenching, and diamond drilling. The company’s approach emphasizes a logical progression from prior work, particularly leveraging positive results from the 2025 exploration campaign.

The 2026 program targets the southern extension of the known copper-molybdenum mineralized system, aiming to refine the orientation, geometry, and continuity of porphyry-related mineralization. Recent field observations have identified a potentially previously unrecognized mineralized zone along a historic logging road east of the main trend, providing a technical basis for the current systematic exploration phase and justifying the focused drill design.

Drill Program Details and Technical Setup

The 2026 diamond drill program is planned to complete approximately 2,400 metres (7,874 feet) of drilling, with four initial drill platforms surveyed and marked. Paradigm Drilling Ltd. has been contracted to conduct the work using a Boyles T-75 hydraulic, track-mounted diamond drill equipped with NQ tooling. This rig can test targets at depths exceeding 600 metres (1,969 feet), enabling exploration of mineralization at significant vertical intervals.

The program allows for additional drill holes based on results, providing management flexibility to pursue promising intersections or new targets during the campaign. The technical design incorporates recommendations from W.B. Lennan, P.Geo., author of the March 2026 Technical Report on the Redonda Property. Mr. Lennan’s review and endorsement of the drill program’s objectives, targets, and design offer independent technical validation.

Mobilization Schedule and Operational Logistics

Drill planning and logistics are finalized, with the drill rig scheduled for marine barge transport departing July 28th, 2026. Arrival at Redonda Bay is expected on July 31st, 2026, with drilling commencing immediately to minimize downtime and begin fieldwork promptly after Q2 2026.

Access to a nearby 40-person floating logging camp eliminates the need for a dedicated exploration camp, significantly improving operational efficiency and reducing mobilization costs and logistical challenges. This strategy reflects disciplined capital management and practical planning suited to the project’s remote island location.

Drilling Objectives and Exploration Targets

Copper One aims to complete about 2,400 metres of diamond drilling across four initial platforms, with flexibility for additional holes. The program will extend the known copper-molybdenum mineralization southward using integrated airborne geophysical data, historical trenching, and prior shallow drilling. A key goal is to expand the mineralized system’s strike length beyond one kilometre (0.62 mile), enhancing understanding of its lateral extent.

The program also seeks to better define the mineralized system’s orientation, geometry, and continuity to support future step-out drilling. Special focus is on the southern extension and the newly exposed mineralized zone, which will be systematically mapped and sampled and may become an additional drill target based on analytical results. This comprehensive approach integrates surface observations with subsurface testing.

Building on 2025 Exploration Success

The 2026 campaign builds directly on 2025 exploration findings. In 2025, Copper One completed diamond drilling, geological mapping, and surface sampling confirming porphyry-style copper-molybdenum mineralization linked to tourmaline breccias and intrusive rocks. Combined with historical drilling, trenching, and airborne geophysical surveys, these efforts enhanced understanding of the mineralized system’s geometry and controls.

The 2026 program is designed to follow up by testing the southern extension, refining orientation and continuity, and evaluating new targets identified through integration of historical and recent data. This evidence-based approach ensures systematic advancement of exploration.

Geological Setting and Mineralization at Redonda

The Redonda Copper-Molybdenum Project comprises nine mineral claims covering approximately 2,746 hectares (6,786 acres) on West Redonda Island within British Columbia’s Vancouver Mining Division. Situated in the highly prospective Coast Suture Zone, a geological belt known for significant porphyry copper and skarn mineralization, the property lies between the Wrangellia Terrane and the Coast Plutonic Complex. This setting is analogous to nearby producing and advanced porphyry systems.

The mineralized system features Early Cretaceous dioritic intrusions cut by at least three later intrusive phases: a quartz plug, a broad hornblende-rich dike locally brecciated over 600 metres of exposed length, and several smaller feldspar dikes near the southwestern margin. Copper-molybdenum mineralization concentrates along the hornblende dike, especially within brecciated zones. The geology shares similarities with the nearby OKover copper-molybdenum deposit 34 kilometres southeast and the Gambier Copper deposit in Howe Sound, supporting the project’s exploration potential.

Community Partnership and Klahoose First Nation Collaboration

Copper One prioritizes close collaboration with the Klahoose First Nation during the 2026 exploration campaign. The company commits to local employment, training, and engaging Klahoose-owned and affiliated businesses where feasible. A Klahoose member has been engaged for core splitting, and the Klahoose crew boat will be used for marine transport during operations.

Ongoing engagement with Klahoose includes regular communication on exploration activities, work schedules, and milestones, incorporating community feedback where appropriate. All activities will follow cultural heritage protocols, environmental best practices, and responsible mineral exploration commitments within Klahoose Traditional Territory. Coordination on site access, health and safety, and environmental monitoring will be conducted with Klahoose representatives, alongside efforts to support long-term capacity building, skills development, and meaningful economic participation.

Technical Leadership and Project Oversight

Experienced porphyry copper geologist B. Augsten, P.Geo., will oversee geological logging during the campaign. The 2026 exploration strategy is based on the Technical Report on the Redonda Property by W.B. Lennan, P.Geo., who has reviewed and concurs with the drill program’s objectives, targets, and design. The scientific and technical information has been reviewed and approved by Larry Segerstrom, M.Sc. (Geology), CPG, a consulting geologist and Qualified Person under National Instrument 43-101.

This team of seasoned professionals ensures independent technical validation and that exploration is guided by qualified expertise. Engaging specialized porphyry copper geologists reflects management’s commitment to disciplined technical evaluation and systematic exploration aligned with industry best practices.

Copper One Resources’ Asset Portfolio Overview

Copper One’s flagship asset is the Majuba Hill Copper-Silver-Gold District, approximately 156 miles (251 kilometres) from Reno, Nevada. The company is advancing Majuba Hill while viewing Redonda as a key growth opportunity within its copper asset portfolio. Additionally, Copper One holds 100% interest in the Redonda Copper-Molybdenum Project and an option to earn up to 100% interest in the Redhill Property near Ashcroft, British Columbia, which hosts volcanogenic massive sulphide mineralization prospective for copper, zinc, silver, and gold.

Pending completion of a proposed transaction, Copper One will also acquire the Sport Project in Utah, further expanding its North American copper exploration assets. The company’s strategy is to advance its portfolio through systematic exploration, modern geological modeling, and rigorous technical evaluation, maintaining a commitment to responsible exploration and transparency.