Mr. Peter Berdusco reports

CANADA ONE PROVIDES EXPLORATION UPDATE AT FLAGSHIP, COPPER DOME PROJECT

Canada One Mining Corp. has provided an exploration update following the phase 2 exploration program conducted at its 100-per-cent-owned Copper Dome project, Princeton, B.C.

2025 field program highlights

• Crews established 53 field stations with full metadata across the property, systematically documenting geological observations to contextualize mineral showings in relation to property-scale and regional geology.
• A total of 29 rock samples were collected during the first phase of exploration and have been delivered to the laboratory for analysis.
• Copper sulphides, including bornite and chalcopyrite, were observed in several rock samples. Assay results are pending.
• Key alteration assemblages observed are indicative of proximity to porphyry centres.

Peter Berdusco, president and chief executive officer of the company, commented: "We are thrilled with the phase 2 exploration work, which identified numerous samples containing visible copper sulphide minerals. The Friday Creek zone emerged as a standout area of interest, and additional work is planned to further evaluate its mineralization footprint and potential within the broader Copper Dome system. Observing bornite in hand sample is a strong indicator of potential porphyry systems, and the project's proximity to the Copper Mountain mine only strengthens the geological narrative. The visible copper mineralization and potassic alteration signatures observed in these samples provide Canada One with a solid foundation to advance exploration and refine its 2026 objectives at the Copper Dome project."

Exploration summary

Crews completed the phase 2 field program at the Copper Dome project, with a primary focus on visiting historic Minfile occurrences and applying modern exploration insight to reassess legacy data and descriptions. All documented Minfile locations were successfully visited, and 53 field stations were collected with full metadata at each site. A total of 29 rock samples were submitted for analysis at ALS Geochemistry -- Kamloops, and the company expects an approximate four-week turn around on results. Historic workings and related infrastructure were mapped, documented and georeferenced, with access conditions recorded for each location.

The company is encouraged by early field observations, which include chalcopyrite stringers, mineralized breccia cement, and bornite clots and stringers.

The Friday Creek zone, located on the western portion of the claim block, hosts strong potassic alteration and visible chalcopyrite and bornite mineralization, commonly occurring with little to no pyrite. Alteration across the zone is similarly encouraging, with moderate to strong K-feldspar and biotite alteration commonly observed near the copper sulphides. This alteration and mineralization assemblage is a recognized indicator of prospective porphyry copper systems, suggesting that the outcrop may lie within the system's central potassic zone.

The discovery of in-situ bornite at the Friday Creek zone is extremely encouraging. Bornite is a copper-bearing sulphide mineral (chemical formula Cu5FeS4, containing approximately 63 per cent copper by mass), and its presence is commonly associated with proximity to porphyry centres. Bornite was observed across an approximate 150 m by 150 m area, highlighting a meaningful footprint of a high-temperature potassic zone and demonstrating strong potential for a porphyry system near surface. At Friday Creek, alteration was mapped over a vertical extent of roughly 100 metres, extending downslope to the valley bottom, where the strongest alteration intensity was recorded.

Bornite at the Friday Creek zone occurs in several styles. A diorite unit was observed with moderate intensity K-feldspar alteration surrounding bornite stringers exhibiting an internally brecciated texture. The K-feldspar may represent an alteration envelope around the chaotic bornite vein swarm.

The company intends to undertake a comprehensive interpretation of the initial field observations, integrating lithological, alteration and mineralization data to refine the current geological setting.

A follow-up field program is scheduled to commence in Q2 2026, with objectives focused on delineating alteration zonation patterns, sulphide mineral distribution and the structural controls on mineralization. Detailed petrographic and geochemical analyses will be employed to better constrain the relationship between the observed hydrothermal alteration assemblages and the inferred porphyry center at the Copper Dome project. These efforts are expected to enhance the company's understanding of the system's geometry and vectoring potential, thereby guiding future drilling and exploration targeting.

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

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 the company reports as having proven and probable reserves of approximately 367 Mt (million tonnes) at 0.25 per cent Cu, 0.12 g/t Au and 0.69 g/t Ag. Multiple mineralized zones have been identified across the property, with historical drilling confirming high-grade copper associated with northeast-trending structures similar to those hosting mineralization at Copper Mountain.

The technical and scientific information regarding the adjacent Copper Mountain Mine is sourced from Hudbay Minerals' published reports. Mineralization at Copper Mountain should not be considered indicative of the mineralization on the Copper Dome project.

The Copper Dome 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 -- the critical metal powering the global energy transition. The company advances projects from discovery through resource definition with disciplined, data-driven exploration and responsible practices. Its flagship Copper Dome project, near Princeton, B.C., targets a porphyry copper-gold system in a Tier 1 jurisdiction. Canada One aims 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, honouring their past, present and future.

Qualified person

The technical information contained in this news release has been reviewed and approved by Ali Wasiliew, PGeo, a qualified person as defined in National Instrument 43-101 -- Standards of Disclosure for Mineral Projects.

Historical sampling

The sampling 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. Future work and drilling may not repeat similar results.

We seek Safe Harbor.