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CONE.V ·

Canada One Commences 2025 Field Work Program at Flagship, Copper Dome Project

Exploration Programs

#250 – 750 West Pender St. Vancouver, British Columbia, V6C 2T7

CANADA ONE COMMENCES 2025 FIELD WORK PROGRAM AT FLAGSHIP, COPPER DOME

PROJECT

Vancouver, B.C., September 17, 202 5 - Canada One Mining Corp. (“Canada One ” or the

“Company”) (TSXV: CONE) (OTC: COMCF) (FSE: AU31) is pleased to announce the launch of its

2025 field exploration program at its flagship Copper Dome Project (“Copper Dome”, “Property” or

“Project”), located 18 km south of Princeton, British Columbia.

2025 FIELD WORK PROGRAM HIGHLIGHTS

• Priority target: Boundary Zone — 1 × 2 km Cu–Au soil anomaly

• Follow-up targets: Friday Creek, Combination, Haul Road zones (mapping + rock

sampling)

• Workstreams: detailed geological mapping, systematic rock geochemistry, alteration

mapping

• Core program: re-log, catalogue, reinterpret historical core around key intercepts

• Outcome: ranked, data-driven target matrix to guide next steps toward drill-targeting

Peter Berdusco, President & CEO of the Company, commented: “We are excited to kick off our

2025 field work at Copper Dome. The Boundary Zone—a recently identified 1 × 2 km Cu–Au anomaly

with historical rock samples up to 43% Cu— will anchor our systematic mapping and geochemistry. In

parallel, we will refine the Friday Creek, Combination, and Haul Road zones and re- log historical core

to deliver a ranked, data-driven target matrix.”

2025 Field Work Program Summary

The 2025 program will prioritize exploration of the Boundary Zone, a newly defined target characterized

by a 1 km by 2-km copper-gold soil geochemical anomaly (See Figure 1: “Map of Copper Dome Zones

with Historical Wor k and Prospective Area”). Historical rock sampling on the western margin of the

Boundary Zone returned exceptional assays of up to 43% Cu, 28.16 g/t Au, and 18.19 g/t Pd . Given

the limited historical work in this area, the Company’s field efforts will focus on systematic geochemical

rock sampling and detailed geological mapping. This work aims to better understand the nature of

copper-gold mineralization, identify alteration assemblages, and evaluate the proximity of potential

porphyry centers relative to the Boundary Zone.

In addition, follow -up rock sampling and geological mapping will be conducted on the Friday Creek ,

Combination, and Haul Road zones which are adjacent to the Boundary Zone (See Figure 2: “Location

Map of the Copper Dome Project ”). Th e Friday Creek and Combination zones have seen limited

historical diamond drilling that tested both geophysical and geochemical anomalies, with notable results

including:

• DDH FC-01: 8.0 m grading 0.55% Cu and 2.8 g/t Au

• DDH FC-02: 15.0 m grading 0.32% Cu and 0.98 g/t Au

• DDH FC-12: 42.5 m grading 0.28% Cu, including 6.0 m grading 1.5% Cu and 0.70 g/t Au

• DDH FC-10-17: 19.5 m grading 0.71% Cu, including 2.0 m grading 4.08% Cu

• DDH FC-18: 102.7 m grading 0.14% Cu, including 20.0 m grading 0.64% Cu

Understanding the geological framework of these zones will be critical in developing a comprehensive

target matrix for future drill testing. The Company’s objective is to define the specific geological settings

of each target and identify those with the most favourable characteristics for copper -gold porphyry

centers.

As part of the 2025 program, field crews will also evaluate the condition of historic al drill core for

relogging, cataloguing, and reinterpretation, with particular attention to the most significant historical

intercepts.

Figure 1: Map of Copper Dome Zones with Historical Work and Prospective Area

Figure 2: Location Map of the Copper Dome Project

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 (TSX: HBM) producing

Copper Mountain Mine to the north which hosts Proven and Probable Reserves of 702 million tonnes

grading 0.24% Cu, 0.09 g/t Au, and 0.72 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 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 ~50% of the Property.

• Sampling: 2,253 soils and 378 rocks collected.

• Drilling: 8,900+ metres of diamond drilling.

• Trenching: Over 1 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

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, British Columbia, 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.

Acknowledgement

Canada One acknowledges that the Copper Dome Project is located within the traditional, ancestral

and unceded territory of the Smelqmix People. We recognize and respect their cultural heritage and

relationship to the land, honoring their past, present and future.

Qualified Person

The technical information contained in this news release has been reviewed and approved by David

Mark, P.Geo., a Qualified Person for the purposes of National Instrument 43-101.

Contact Us

For further information, interested parties are encouraged to visit the Company’s website at

www.canadaonemining.com, or contact the Company by email at [email protected], or by

phone at 1.877.844.4661.

On behalf of the Board of Directors of

CANADA ONE MINING CORP.

Peter Berdusco

President

Chief Executive Officer

Interim Chief Financial Officer

Forward-Looking Statements

This press release includes certain "forward- looking information" and "forward-looking statements" (collectively "forward-looking statements") within the

meaning of applicable Canadian securities legislation. All statements, other than statements of historical fact, included herein, without limitation, statements

relating to the future operating or financial performance of the Company, are forward looking statements. Forward-looking statements are frequently, but

not always, identified by words such as "expects", "anticipates", "believes", "intends", "estimates", "potential", "possible", and similar expressions, or

statements that events, conditions, or results "will", "may", "could", or "should" occur or be achieved. Forward- looking statements in this press release

relate to, among other things: statements relating to the anticipated timing thereof and the intended use of proceeds. Actual future results may differ

materially. There can be no assurance that such statements will prove to be accurate, and actual results and future events could differ materially from

those anticipated in such statements. Forward looking statements reflect the beliefs, opinions and projections on the date the statements are made and

are based upon a number of assumptions and estimates that, while considered reasonable by the respective parties, are inherently subject to significant

business, technical, economic, and competitive uncertainties and contingencies. Many factors, both known and unknown, could c ause actual results,

performance or achievements to be materially different from the results, performance or achievements that are or may be expressed or implied by such

forward-looking statements and the parties have made assumptions and estimates based on or related to many of these factors. Such factors include,

without limitation: the timing, completion and delivery of the referenced assessments and analysis. Readers should not place undue reliance on the

forward-looking statements and information contained in this news release c oncerning these times. Except as required by law, the Company does not

assume any obligation to update the forward-looking statements of beliefs, opinions, projections, or other factors, should they change, except as required

by law.

TSX Venture Exchange Disclaimer

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts

responsibility for the adequacy or accuracy of this release.