CanAlaska Intersects 16.8 Metres of 13.75% eU₃O₈ Unconformity Uranium at Pike Zone on West McArthur Joint Venture

Drillhole WMA082-4 Intersected 16.8 metres at 13.75% eU₃O₈; including 4.7 metres at 40.30% eU₃O₈ and 2.4 metres at 13.54% eU₃O₈

Two-Drill Winter Program Ongoing at West McArthur Project

Vancouver, Canada, February 28, 2024 – CanAlaska Uranium Ltd. (TSX-V: CVV; OTCQX: CVVUF; Frankfurt: DH7) (“CanAlaska” or the “Company”) is pleased to report that drillhole WMA082-4 has intersected 13.75% eU₃O₈ over 16.8 metres, including 40.30% eU₃O₈8 over 4.7 metres and 13.54% eU₃O₈ over 2.4 metres at the Pike Zone as part of the ongoing winter exploration program on the West McArthur Joint Venture project (the “Project”) in the eastern Athabasca Basin. The main objectives of the 2024 drill program are continued expansion of the Pike Zone discovery and along strike unconformity testing to the northeast and southwest. The West McArthur project, a Joint Venture with Cameco Corporation, is operated by CanAlaska that holds an 83.35% ownership in the Project (Figure 1). CanAlaska is sole-funding the 2024 West McArthur program, further increasing its majority ownership in the Project.

Figure 1 – West McArthur Project Location

Drillhole WMA082-4 intersected one main interval of 13.75% eU₃O₈ over 16.8 metres, including 40.30% eU₃O₈ over 4.7 metres and 13.54% eU₃O₈ over 2.4 metres, followed by several lower grade intervals down hole (Table 1). The mineralization is characterized by massive to semi-massive, blebby, disseminated, clay-hosted, and fracture-controlled uranium mineralization associated with yellow and orange uranium secondaries at the contact between the Athabasca sandstone and the underlying basement rocks (Figure 3). The mineralized intervals are hosted within a broad zone of intense clay and chlorite alteration, resulting in complete replacement of the original rock fabric and textures.  Localized intervals of lost core occur due to high rock friability.

Figure 2 – WMA082-4 Drillhole Location

The lower sandstone column of WMA082-4 is strongly bleached, limonite and clay altered, and contains several multi-metre scale fault zones that consist of quartz dissolution, core loss related to broken and blocky core, clay replacement, and clay-filled breccias extending over 80 metres above the uranium mineralization. WMA082-4 is located approximately 30 metres along strike to the northeast of high-grade uranium mineralization intersected in WMA082-2, which intersected 1.03% U₃O₈ over 6.3 metres, including a sub-interval of 2.82% U₃O₈ over 1.9 metres (see News Release dated January 18, 2024). The unconformity target at Pike Zone remains open in all directions around WMA082-4 (Figure 2). 

CanAlaska CEO, Cory Belyk, comments, “It is extremely rare to intersect uranium mineralization of this grade and width anywhere in the world, including the Athabasca Basin. This is a significant outcome for the West McArthur JV and CanAlaska shareholders. Since initial discovery in 2022, the CanAlaska team has believed Pike Zone had the potential for Cigar- and McArthur River-like uranium grades and thickness based on prior drilling results. The geologists have been laser focused on determining the geological controls in a clear and methodical approach and the results of this fantastic work are now achieving outcomes for our shareholders. Tier 1 uranium deposits always occur as ‘pearls on a string’ and we have now found a pearl. We look forward to the remainder of the winter program results from West McArthur in the backdrop of an eastern Athabasca region that requires a tier 1 uranium deposit discovery to maintain its current production profile.”

Figure 3 – WMA082-4 Main Intersection Core Photograph

The Company expects to complete the winter portion of the ongoing 2024 exploration program in April. Assay results for WMA082-4 are pending.

Table 1 – WMA082-4 Radiometric Equivalent Uranium Grades

Other News
The Company will be attending the Red Cloud Pre-PDAC 2024 Mining Showcase from February 29th – March 1st in Toronto, ON. Red Cloud Pre-PDAC 

In addition, the Company will be attending the 2024 PDAC Convention from March 3rd – March 6th in Toronto, ON and will have representatives at booth 2140. PDAC Convention

Geochemical Sampling Procedures and Use of Radiometric Equivalent Grades
All drill core samples from the 2024 program will be shipped to the Saskatchewan Research Council Geoanalytical Laboratories (SRC) in Saskatoon, Saskatchewan in secure containment for preparation, processing, and multi-element analysis by ICP-MS and ICP-OES using total (HF:NHO3:HClO4) and partial digestion (HNO3:HCl), boron by fusion, and U₃O₈ wt% assay by ICP-OES using higher grade standards. Assay samples are chosen based on downhole probing radiometric equivalent uranium grades and scintillometer (SPP2 or CT007-M) peaks. Assay sample intervals comprise 0.3 – 0.8 metre continuous half-core split samples over the mineralized interval. Select density samples, comprising 0.1 metre continuous whole core samples that are subsequently assayed, may be taken within the mineralized interval. One half of the split sample is retained and the other sent to the SRC for analysis. The SRC is an ISO/IEC 17025/2005 and Standards Council of Canada certified analytical laboratory. Blanks, standard reference materials, and repeats are inserted into the sample stream at regular intervals by CanAlaska and the SRC in accordance with CanAlaska’s quality assurance/quality control (QA/QC) procedures. Geochemical assay data are subject to verification procedures by qualified persons employed by CanAlaska prior to disclosure.

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 (“eU₃O₈”) are then calculated from the downhole radiometric results. The probe is calibrated using an algorithm calculated from the calibration of the probe at the Saskatchewan Research Council facility in Saskatoon. At extremely high radiometric equivalent uranium grades, downhole gamma probes may become saturated, and a cap may be applied to the grade. A 0.1% eU₃O₈ cut-off with a maximum internal dilution of 1 metre is used for compositing and reporting the data. A 1.0% or 2% eU₃O₈ cut-off with a maximum internal dilution of 1 metre is used for compositing and reporting higher-grade sub-intervals. 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, 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 Uranium Ltd. (TSX-V: CVV; OTCQX: CVVUF; Frankfurt: DH7) holds interests in approximately 500,000 hectares (1,235,000 acres), in Canada’s Athabasca Basin – the “Saudi Arabia of Uranium.”  CanAlaska’s strategic holdings have attracted major international mining companies. CanAlaska is currently working with Cameco and Denison at two of the Company’s properties in the Eastern Athabasca Basin. CanAlaska is a project generator positioned for discovery success in the world’s richest uranium district. The Company also holds properties prospective for nickel, copper, gold and diamonds. For further information visit www.canalaska.com.

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:

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.  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.  Readers should not place undue reliance on forward-looking statements.  Except as required by law, the Company does not intend to revise or update these forward-looking statements after the date hereof or revise them to reflect the occurrence of future unanticipated events.