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Canada One Provides Corporate Update on Copper Dome Project

Corporate Updates

Canada One Provides Corporate Update on

Copper Dome Project

Vancouver, British Columbia--(Newsfile Corp. - April 1, 2026) -

Canada One Mining Corp

. (TSXV:

CONE) (OTC Pink: COMCF) (FSE: AU31) ("

Canada One

" or the "

Company

") is pleased to provide a

corporate update on its 100%-owned Copper Dome Project ("

Copper Dome

", the "

Project

" or the

"

Property

") near Princeton, British Columbia.

Project Highlights

The Project directly adjoins the producing

Copper Mountain Mine, owned and operated by

Hudbay Minerals Inc.,

which reports

Proven + Probable reserves

at

347 Mt

grading

0.25%

Cu

,

0.12 g/t Au

, and

0.69 g/t Ag

, supporting a 21-year mine life to

2045

1

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% Cu, 4.89 g/t

Au and 10.40 g/t Pd 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% and 69 m of 0.21% 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% 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, 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% Cu in hole PT-12-26 and 69 m of 0.21% 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% 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%

Cu, as well as 8.17 g/t Au, 6.83 g/t Ag and 1.75% 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 to anomalies overlying the active Copper Mountain pits, suggesting a potential

buried mineral system continuing southward onto the Property.

Field Work

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.

Figure 1: Location Map of the Copper Dome Project with Zones

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/10074/290810_cda27c9f541ed8b2_002full.jpg

Figure 2: Copper Dome Project, including Copper Dome North Area (red)

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/10074/290810_cda27c9f541ed8b2_003full.jpg

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% Cu, 0.12 g/t Au,

and 0.69 g/t Ag

1

. 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 ~50% of the Property.

Sampling: 2,253 soils and 378 rocks collected.

Drilling: 8,900+ m 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.

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 NI43-101 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 multi-

element geochemistry, including elements Cu, Pb, Zn, Co, and Ag (method ME-MS61).

Qualified Person

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

Wasiliew, P.Geo, an independent Qualified Person for the purposes of National Instrument 43-101.

Note 1

: Hudbay Minerals Inc. (2023).

NI 43-101 Technical Report

- Updated Mineral Resources & Mineral Reserves Estimate, Copper Mountain

Mine, Princeton, British Columbia.

Effective date: December 1, 2023. Qualified Person: Olivier Tavchandjian, Ph.D., P.Geo. Available on Sedar+. The

technical and scientific information regarding the adjacent Copper Mountain Mine is sourced from Hudbay Minerals Inc.'s published reports.

Mineralization at Copper Mountain should not be considered indicative of the mineralization on the Copper Dome Project.

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 cause 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 concerning 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.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/290810