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CanAlaska Begins Summer Drill Program at West McArthur Joint Venture Drilling Focused on Expansion and Extension of High-Grade Pike Zone Uranium Discovery Assay Results from Winter Drill Program are Pending

Drill Results Mergers & Acquisitions Exploration Programs Partnerships & JV

CanAlaska Begins Summer Drill Program at

West McArthur Joint Venture

Drilling Focused on Expansion and Extension of High-Grade Pike Zone Uranium Discovery

Assay Results from Winter Drill Program are Pending

Saskatoon, Saskatchewan--(Newsfile Corp. - June 17, 2025) -

CanAlaska Uranium Ltd. (TSXV: CVV)

(OTCQX: CVVUF) (FSE:

DH7)

("

CanAlaska

" or the "

Company

") is pleased to announce the start of

the summer drill program as part of the $12.5 million 2025 exploration program on the West McArthur

Joint Venture project (the "Project") in the eastern Athabasca Basin. The 2025 West McArthur summer

program will focus on continued step outs from the Pike Zone to evaluate for additional zones of uranium

mineralization. Crews have mobilized to the project site and drilling has begun at Pike Zone. The West

McArthur project, a Joint Venture with Cameco Corporation, is operated by CanAlaska that holds an

85.97% ownership in the Project. CanAlaska is sole-funding the 2025 West McArthur program and will

further increase its majority ownership in the Project as a result.

Figure 1 – West McArthur Project Location

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

https://images.newsfilecorp.com/files/2864/255771_e6bdb32b847bd83e_002full.jpg

CanAlaska CEO, Cory Belyk, comments,

"Following a very successful winter drilling program at Pike

Zone, the CanAlaska team is looking forward to getting back on the ground to advance this high-grade

uranium discovery. The main focus will be on extending the known unconformity-associated high-

grade uranium footprint in both directions along the unconformity target area. Late in the winter

program the team stepped out on the target to the west and successfully intersected significant

uranium mineralization similar to that observed immediately adjacent to the high-grade intersected in

other areas of Pike Zone. The unconformity target remains completely open for 1,000 metres to the

west and 600 metres to the east. With long-term contract uranium prices stabilized and a uranium spot

price market showing signs of movement upward, it is my firm belief we are on the cusp of another

uplift in the uranium market which will make delivery of our drilling results timely through the summer

and fall of 2025."

2025 West McArthur Summer Drill Program Plan

The 2025 summer drill program on the West McArthur project will have three drills working to achieve an

estimated 15 to 20 additional unconformity target intersections. The drill rigs will be focused on

continued step outs along strike to evaluate for additional zones of uranium mineralization and

extensions of the Pike Zone (Figure 2). To the west of the Pike Zone, the unconformity target area

remains untested for approximately 1,000 metres. To the east of the Pike Zone, the unconformity target

area remains untested for approximately 600 metres. In both directions, alteration and fault structures

were intersected in the lower sandstone column above the unconformity. Select infill targets within the

currently understood footprint of the Pike Zone may be completed during the summer program.

Figure 2 – West McArthur Summer Drill Program Plan

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

https://images.newsfilecorp.com/files/2864/255771_e6bdb32b847bd83e_004full.jpg

Results from recently completed drill programs indicate that the Pike Zone has a strike length of uranium

mineralization along the unconformity target area of approximately 250 metres that remains open in all

directions. Within that footprint, multiple drill fences outline a 130-metre-long high-grade pod of uranium

mineralization. During the recently completed winter drill program, significant uranium intersections were

returned, including WMA079-01 which intersected

8.3 metres at 24.82% eU

3

O

8

, including 5.5 metres

at 37.09% eU

3

O

8

, and WMA074-04 which intersected

17.6 metres at 9.10% eU

3

O

8

, including 15.0

metres at 10.53% eU

3

O

8

(see

News Release

dated April 22

nd

, 2025). Importantly, the Company

advanced step out drilling along the C10S Corridor to the west of the Pike Zone, intersecting additional

high-grade uranium and extending the known footprint of unconformity-associated uranium mineralization

50 metres west of the previously understood mineralization footprint. The results from the recently

completed drill programs indicate that the strong hydrothermal mineralizing system remains open in both

directions along the C10S corridor and highlights the potential for additional mineralized pods along

strike.

The Company expects to complete the summer portion of the 2025 exploration program in September.

Assay results for the drill holes completed during the winter 2025 exploration program are pending.

Use of Radiometric Equivalent Grades

During active exploration programs drillholes are radiometrically logged using calibrated downhole

GeoVista NGRS and TGGS (Triple GM) gamma probes which collect continuous readings along the

length of the drillhole. Preliminary radiometric equivalent uranium grades ("eU

3

O

8

") are then calculated

from the downhole radiometric results. The probe is calibrated using an in-house algorithm calculated

from the calibration of the probe at the Saskatchewan Research Council facility in Saskatoon and from

the comparison of probe results against previously reported geochemical analyses. At extremely high

radiometric equivalent uranium grades, downhole gamma probes may become saturated, resulting in

the probe being overwhelmed, which in turn can create difficulties in accurately determining extremely

high-grade radiometric equivalent uranium grades, and a cap may be applied to the grade. The

equivalent uranium grades are preliminary and are subsequently reported as definitive assay grades

following sampling and chemical analysis of the mineralized drill core. In the case where core recovery

within a mineralized intersection is poor or non-existent, radiometric grades are considered to be more

representative of the mineralized intersection and may be reported in the place of assay grades.

Radiometric equivalent probe results are subject to verification procedures by qualified persons

employed by CanAlaska prior to disclosure.

All reported depths and intervals are drill hole depths and intervals, unless otherwise noted, and do not

represent true thicknesses, which have yet to be determined.

About CanAlaska Uranium

CanAlaska is a leading explorer of uranium in the Athabasca Basin of Saskatchewan, Canada. With a

project generator model, the Company has built a large portfolio of uranium projects in the Athabasca

Basin. CanAlaska owns numerous uranium properties, totaling approximately 500,000 hectares, with

clearly defined targets in the Athabasca Basin covering both basement and unconformity uranium

deposit potential. The Company has recently concentrated on the West McArthur high-grade uranium

expansion with targets in 2024 leading to significant success at Pike Zone. Fully financed for the

upcoming 2025 drill season, CanAlaska is focused on Tier 1 Uranium deposit discovery and delineation

in a safe and secure jurisdiction. The Company has the right team in place with a track record of

discovery and projects that are located next to critical mine and mill infrastructure.

The Company's head office is in Saskatoon, Saskatchewan, Canada with a satellite office in Vancouver,

BC, Canada.

The Qualified Person under National Instrument 43-101 Standards of Disclosure for Mineral Projects for

this news release is Nathan Bridge, MSc., P. Geo., Vice-President Exploration for CanAlaska Uranium

Ltd., who has reviewed and approved its contents.

On behalf of the Board of Directors

"Cory Belyk"

Cory Belyk, P.Geo., FGC

CEO, President and Director

CanAlaska Uranium Ltd.

Contacts:

Cory Belyk, CEO and President

General Enquiry

Tel: +1.306.668.6900

Tel: +1.306.668.6915

Email:

[email protected]

Email:

[email protected]

Neither 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.

Forward-looking information

All statements included in this press release that address activities, events or developments that the

Company expects, believes or anticipates will or may occur in the future are forward-looking

statements.

Forward-looking statements are frequently identified by such words as "may", "will",

"plan", "expect", "anticipate", "estimate", "intend" and similar words referring to future events and

results. Forward-looking statements are based on the current opinions and expectations of

management.

These forward-looking statements involve numerous assumptions made by the

Company based on its experience, perception of historical trends, current conditions, expected future

developments and other factors it believes are appropriate in the circumstances. In addition, these

statements involve substantial known and unknown risks and uncertainties that contribute to the

possibility that the predictions, forecasts, projections and other forward-looking statements will prove

inaccurate, certain of which are beyond the Company's control.

Actual events or results may differ

materially from those projected in the forward-looking statements and the Company cautions against

placing undue reliance thereon.

The Company assumes no obligation to revise or update these

forward-looking statements except as required by applicable law.

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

https://www.newsfilecorp.com/release/255771