Mr. Peter Berdusco reports

CANADA ONE PROVIDES CORPORATE UPDATE ON COPPER DOME PROJECT

Canada One Mining Corp. has provided a corporate update on its 100-per-cent-owned Copper Dome project near Princeton, B.C.

Project highlights

• The project directly adjoins the producing Copper Mountain mine, owned and operated by Hudbay Minerals Inc., which reports proven plus probable reserves at 347 Mt (million tonnes) grading 0.25 per cent Cu (copper), 0.12 g/t (gram per tonne) Au (gold) and 0.69 g/t Ag (silver), supporting a 21-year mine life to 2045.
• Assay results from the Friday Creek zone, generated from rock samples collected during the fall 2025 exploration program, will be released in April.
• Historical rock sampling at the Friday Creek zone returned values up to 10.65 per cent Cu, 4.89 g/t Au and 10.40 g/t Pd (palladium), and the zone displays encouraging porphyry-style alteration and mineralization.
• Copper Dome has a five-year drill permit in hand, with the Boundary zone identified as a key drill-target area.
• Prior work by the company at the Boundary zone defined a broad 1,000 m by 1,750 m Cu-Au anomalous corridor, additional follow-up work is planned in 2026.
• The Combination Creek zone hosts 5,732 m of historical drilling in 22 holes, including 20 m of 0.64 per cent and 69 m of 0.21 per cent Cu.
• The Reco target has added high-grade Au-Ag-Cu upside, including rock sample assays up to 9.96 g/t Au, 9.62 g/t Ag and 0.78 per cent Cu, with additional follow-up work planned in 2026

Peter Berdusco, president and chief executive officer of Canada One, commented: "The progress made at Copper Dome has been meaningful on multiple fronts. We expanded the land package, strengthened our permitting position, advanced our understanding of several priority target zones and added high-grade results that broaden the opportunity set at the project. With proximity to Hudbay Minerals' producing Copper Mountain mine and Kodiak Copper's MPD project, we believe Copper Dome is becoming a more robust and better-defined exploration story. We will continue refining and advancing drill targets and look forward to sharing our Friday Creek rock sample results in April."

Project review

Copper Dome today stands on a larger and more compelling foundation, supported by an expanded land package, a five-year drill permit, multiple priority target areas and encouraging results that continue to broaden the company's exploration opportunity.

The project has expanded with the acquisition of the 4,836-hectare Copper Dome North area, and subsequent staking of Copper Dome East area and currently totals 12,833 hectares.

This larger land position gives the company broader control over a highly prospective Cu-Au setting adjacent to Hudbay Minerals' producing Copper Mountain mine and creates more room to evaluate multiple mineralized corridors and target settings within one consolidated project area.

Copper Dome's location remains one of its defining strengths. The project directly adjoins the mine and lies within the lower Quesnel trough porphyry belt, one of British Columbia's best-known copper-producing regions. In addition to its geological setting, the project benefits from year-round access and established infrastructure, supporting cost-effective exploration and efficient project advancement.

With a five-year drill permit now in hand, Canada One has the flexibility to continue refining targets and progressing the most compelling zones toward drill-ready definition.

Boundary zone

The Boundary zone has been identified by the company as a primary drill-targeting focus, reflecting its location near Copper Mountain and the scale of its Cu-Au signature. Past work has outlined a broad north-northeast-trending Cu-Au anomalous corridor measuring approximately 1,000 m wide by 1,750 m long. The zone remains open toward Copper Mountain to the north-northeast and to the south-southwest. Numerous mobile metal ion copper values exceed 10,000 ppb (parts per billion), while elevated potassium values indicate potassic alteration, a key feature commonly associated with porphyry copper systems. Taken together, these characteristics continue to support the Boundary zone as one of the project's most important Cu-Au targets.

Combination Creek zone

Combination Creek provides an additional layer of technical support for the broader Copper Dome exploration model. Historical work at the zone includes 5,732 m of diamond drilling in 22 holes, with notable intercepts including 20 m of 0.64 per cent Cu in hole PT-12-26 and 69 m of 0.21 per cent Cu in hole PT-11-21. These results demonstrate the presence of meaningful copper mineralization within the project area and reinforce the company's view that Copper Dome hosts multiple target zones worthy of continued advancement.

Friday Creek zone

At the Friday Creek zone, the company continues to see signs consistent with a prospective porphyry-style environment. Historical rock sampling has returned values up to 10.65 per cent Cu, 4.89 g/t Au and 10.40 g/t Pd, while more recent field observations identified bornite and chalcopyrite associated with strong potassic alteration, including K-feldspar and biotite alteration. Canada One believes Friday Creek represents one of the more compelling target areas on the property and an important part of the project's evolving exploration pipeline. Assay results from the zone, generated from samples collected during the fall 2025 exploration program and submitted to ALS Geochemistry -- Kamloops, will be released in April.

The Reco target

The Reco target has introduced an important high-grade dimension to the Copper Dome story. In February, 2026, the company reported rock samples grading up to 9.96 g/t Au, 9.62 g/t Ag and 0.78 per cent Cu, as well as 8.17 g/t Au, 6.83 g/t Ag and 1.75 per cent Cu. Historical and recent work at the broader Haul Road area has also highlighted strong Au and Cu values, including select rock samples up to 93.3 g/t Au. These results suggest Copper Dome may host not only porphyry-related Cu-Au potential, but also structurally controlled higher-grade Au-Ag-Cu opportunities that can add further upside to the project.

Copper Dome South

Copper Dome South tenure block covers an extension of the Nicola Group volcanic sequence, the same Triassic host rocks that contain the major Cu-Au deposits of Copper Mountain and the Ingerbelle deposit. Historical work, including surface sampling, backpack drilling and a 2009 Titan-24 survey, identified broad, high-chargeability zones and anomalous geochemical values at surface are comparable in strength with anomalies overlying the active Copper Mountain pits, suggesting a potential buried mineral system continuing southward onto the property.

Fieldwork

Canada One's recent fieldwork has also helped strengthen the project technically. During the 2025 phase 2 program, crews established 53 field stations across the property and collected 29 rock samples, while observing copper sulphides including bornite and chalcopyrite in several areas. This work has improved the company's geological context across the property and is helping refine priorities for the next stage of exploration. At Reco a larger-scale prospecting, mapping and sampling program is planned in 2026 to better define the extent and controls of mineralization.

About the Copper Dome project

Copper Dome is located in the lower Quesnel trough porphyry belt, one of British Columbia's most prolific mining districts. The project directly adjoins Hudbay Minerals Inc.'s producing Copper Mountain mine to the north which hosts proven and probable reserves of 367 Mt grading 0.25 per cent Cu, 0.12 g/t Au and 0.69 g/t Ag. Multiple mineralized zones have been identified across the Copper Dome property, with historical drilling confirming high-grade copper associated with northeast-trending structures similar to those hosting mineralization at Copper Mountain.

The project benefits from excellent infrastructure, enabling year-round access, cost-efficient exploration and a stable, low-risk jurisdiction.

Historical work completed

• Geophysics: 51 km of induced polarization (IP); airborne magnetic and electromagnetic (EM) coverage over approximately 50 per cent of the property;
• Sampling: 2,253 soils and 378 rocks collected;
• Drilling: 8,900-plus m of diamond drilling;
• Trenching: over one km excavated.

With a five-year drill permit in place, the company is focused on advancing the project toward drill-ready target definition.

About Canada One Mining Corp.

Canada One Mining is a Canadian junior exploration company focused on copper and other critical metals needed for the energy transition. The company advances projects from discovery through resource definition using disciplined, data-driven exploration and responsible practices. Its flagship Copper Dome project, near Princeton, B.C., is targeting a porphyry-style copper-gold system in a Tier 1 jurisdiction. Canada One's goal is to deliver sustainable growth and long-term value for shareholders and local communities.

Acknowledgment

Canada One acknowledges that the Copper Dome project is located within the traditional, ancestral and unceded territory of the Smelqmix People. The company recognizes and respects their cultural heritage and relationship to the land, honoring their past, present and future.

Historical work

Certain technical information relating to the Copper Dome project is based on historical work and records prepared by previous operators. Work was done to the standards of the time and is considered historical in nature and is not National Instrument 43-101 compliant and cannot be relied upon. The results are listed here to show why the company is interested in this area. A qualified person has reviewed the available information for reasonableness; however, further work is required to verify portions of the historical data and future work and drilling may not repeat similar results.

Quality assurance/quality control (QA/QC)

All rock samples collected from the fall 2025 fieldwork program, were submitted to ALS Geochemistry -- Kamloops to be analyzed for gold and platinum group elements (PGM-ICP24 50 g fire assay), and multielement geochemistry, including elements Cu (copper), Pb (lead), Zn (zinc), Co (cobalt) and Ag (silver) (method ME-MS61).

Qualified person

The technical information contained in this news release has been reviewed and approved by Ali Wasiliew, PGeo, an independent qualified person for the purposes of National Instrument 43-101.

We seek Safe Harbor.