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Skyharbour Commences its 2025 Drilling Campaign with Winter Drilling Program at its Russell Lake Uranium Project, Saskatchewan Vancouver, BC - Skyharbour Resources Ltd. (TSX-V: SYH) (OTCQX: SYHBF) (Frankfurt: SC1P) (“Skyharbour” or the “Company”) is pleased to announce the commencement of its winter

Exploration Programs

Suite 1030 – 505 Burrard Street, Vancouver, BC, Canada, V7X 1M5

www.skyharbourltd.com

TSX-V Trading Symbol: SYH

Email: [email protected]

Telephone: (604) 558-5847

Facsimile: (604) 687-3119

February 25th, 2025

News Release

Skyharbour Commences its 2025 Drilling Campaign with Winter Drilling Program at its

Russell Lake Uranium Project, Saskatchewan

Vancouver, BC - Skyharbour Resources Ltd. (TSX-V: SYH) (OTCQX: SYHBF) (Frankfurt:

SC1P) (“Skyharbour” or the “Company”) is pleased to announce the commencement of its winter

phase of diamond drilling at the 73, 314 hectare Russell Lake Uranium Project (“Russell” or the

“Project”). The Project is 57.7% owned by Skyharbour as operator with joint-venture partner Rio Tinto

Exploration Canada Inc. (“RTEC”) owning the other 4 2.3%. It is strategically located in the central

core of the Eastern Athabasca Basin of northern Saskatchewan , with access to regional

infrastructure, including an all-weather road and powerline. Skyharbour plans to complete an initial

5,000-metre diamond drilling program in 10 to 12 holes at the project, building on the successful

results from the drilling campaign completed last year. The Company's geologists, along with a

contracted drilling crew, are based at Skyharbour’s exploration camp on the McArthur River -Key

Lake haul road, situated within five kilometres of Denison Mines' Phoenix deposit at the Wheeler

River Project.

Russell Lake and Moore Projects Location Map:

https://www.skyharbourltd.com/_resources/images/SKY_RussellLake.jpg

Skyharbour is fully-funded for its upcoming drill programs at its co-flagship Russell Lake and Moore

Uranium Projects in 2025 starting with this first phase of drilling at Russell. The Company has plans

to drill approx. 16,000 – 18,000 metres in 35 – 45 holes across its co-flagship projects representing

the largest annual drill campaign ever carried out by the Company.

Jordan Trimble, President and CEO of Skyharbour, stated: “We are thrilled to commence the 2025

drill campaign which will consist of 16 -18,000 metres in multiple phases of drilling at Russell and

Moore throughout the year. This will provide steady news flow as we follow up on the 2024 programs

with the benefit of low -cost drilling and relatively shallow target depths at our co -flagship projects.

This first phase of drilling at Russell will continue to test the exploration upside at the project, which

hosts widespread uranium mineralization and has the geology necessary for larger, high -grade,

Athabasca Basin uranium deposits.”

Winter Phase of Diamond Drilling at Russell Lake:

Skyharbour has commenced its 2025 drilling program at the Russell Lake Project with plans for a

first phase consisting of approx. 5,000 metres to follow up on notable recent exploration success and

to test new targets developed by the geological team . The focus for this phase of drilling will be on

the Fork and Sphinx targets within the broader Grayling target area, as well as the M-Zone Extension

(“MZE”) target and the Fox Lake Trail target. This initial winter program will consist of 10 to 12 drill

holes, with most of the targets being road accessible and near the exploration camp, bringing the

drill costs down. Furthermore, details on the geochemical assay results are pending from the drilling

carried out in late 2024 at Russell.

Russell Lake Project Target Areas:

https://www.skyharbourltd.com/_resources/images/20240110-MainTargetsRussellLake2024.jpg

The Fork target is a newly identified target to the southwest of the Grayling Zone and is on strike

with Denison’s M-Zone at their adjacent Wheeler River Project. Last year, high-grade uranium was

discovered at the Fork target in hole RSL24-02, which returned a 2.5-metre wide intercept of 0.721%

U3O8 at a relatively shallow depth of 338.1 metres, including approx. 3.0% U3O8 over 0.5 metres just

above the unconformity in the sandstone (see news release dated July 19th, 2024, titled: “Skyharbour

Drills New Discovery at Russell Project with High-Grade Uranium Mineralization Up to 3.0% U3O8 at

Newly Identified Fork Zone”) . This high -grade intercept is a new discovery which ha d very limited

historical exploration due to a lack of reliable geophysical data and drill targets hampered by

interference from nearby powerlines. The mineralization remains open in most directions, including

along strike and up-dip, and will be a high -priority target for this drill program. The potential for

basement-hosted mineralization at the Fork target remains virtually untested.

Grayling and Fork Target Areas:

https://skyharbourltd.com/_resources/images/2024-Fork-East-Grayling-Drill-Hole-Location-

Map_NR.jpg

Skyharbour also plans to drill targets in the M -Zone Extension area along trend from the Grayling

Zone and Denison’s M-Zone at Wheeler River, where historical drilling intersected basement-hosted

uranium mineralization. More recent drilling by Denison in 2020 at the M-Zone encountered uranium

mineralization with significant faulting, core loss, geochemical anomalies, and radioactivity

encountered in other drill holes . Like the Grayling Zone, the mineralization at the MZE target is

hosted by a graphitic thrust fault within a significant magnetic low. It is also noted that cross structures

associated with Denison’s Phoenix and Gryphon uranium deposits potentially trend onto the Russell

Lake property within the M-Zone Extension target area , further enhancing the prospectivity of this

target.

M-Zone Extension Drill Targets:

https://www.skyharbourltd.com/_resources/images/20240110-M-

ZoneExtensionTargetsRussellLake.jpg

The Fox Lake Trail (“FLT”) area is located in the northwestern section of the Russell Lake project.

This area encompasses a broad conductive corridor with a strike length exceeding 12 km , which

hosts multiple parallel conductors identified by both airborne and ground geophysical surveys,

subsequently confirmed by drilling, as graphitic fault zones. Limited historical drilling in the area

shows significant alteration and disruption in both sandstone and basement rocks, along with

elevated radioactivity and highly anomalous pathfinder geochemistry in drill core samples. These

findings indicate the presence of a significant hydrothermal system in the area, which is often

associated with the formation of high -grade, unconformity-type uranium deposits in the Athabasca

Basin.

Skyharbour to Participate in Red Cloud's 13th Annual Pre-PDAC Mining Showcase:

Skyharbour is pleased to announce that the Company will be presenting at Red Cloud's 13th Annual

Pre-PDAC Mining Showcase. We invite our shareholders, and all interested parties to join us. The

annual conference will take place in-person at The Omni King Edward Hotel in Toronto on February

27th and 28th, 2025. President and CEO Jordan Trimble will be presenting on February 28 th at

10:00AM Eastern Standard time.

For more information and to register for the conference please visit:

https://redcloudfs.com/prepdac2025/.

Russell Lake Uranium Project Overview:

The Russell Lake Project is a large, advanced -stage uranium exploration property totalling 73,314

hectares strategically located between Cameco’s Key Lake and McArthur River Projects , and

adjoining Denison’s Wheeler River Project to the west and Skyharbour’s Moore Uranium Project to

the east. The northern extension of Highway 914 between Key Lake and McArthur River runs through

the western extent of the property and greatly enhances accessibility, while a high-voltage powerline

is situated alongside this road. Skyharbour’s acquisition of a majority interest in Russell Lake creates

a large, nearly contiguous block of highly prospective uranium claims totalling 10 9,019 hectares

between the Russell Lake and the Moore uranium projects. Several notable exploration targets exist

on Russell, including the Grayling Zone, the M-Zone Extension target, the Little Man Lake target, the

Christie Lake target, the Fox Lake Trail target and the newly identified Fork Zone target. More than

35 kilometres of largely untested prospective conductors in areas of low magnetic intensity also exist

on the Property. Skyharbour is the operator and owns a majority interest in Russell Lake, having

formed a joint venture partnership with RTEC at the project.

Qualified Person:

The technical information in this news release has been prepared in accordance with the Canadian

regulatory requirements set out in National Instrument 43-101 and reviewed and approved by Serdar

Donmez, P.Geo., VP of Exploration for Skyharbour as well as a Qualified Person.

About Skyharbour Resources Ltd.:

Skyharbour holds an extensive portfolio of uranium exploration projects in Canada's Athabasca

Basin and is well positioned to benefit from improving uranium market fundamentals with interest in

thirty-six projects covering over 614,000 hectares (over 1.5 million acres) of land. Skyharbour has

acquired from Denison Mines, a large strategic shareholder of the Company, a 100% interest in the

Moore Uranium Project, which is located 15 kilometres east of Denison's Wheeler River project and

39 kilometres south of Cameco's McArthur River uranium mine. Moore is an advanced -stage

uranium exploration property with high -grade uranium mineralization in several zones at the

Maverick Corridor. Adjacent to the Moore Project is the Russell Lake Uranium Project , in which

Skyharbour is operator with joint -venture partner RTEC. The project hosts widespread uranium

mineralization in drill intercepts over a large property area with exploration upside potential. The

Company is actively advancing these projects through exploration and drilling programs.

Skyharbour also has joint ventures with industry leader Orano Canada Inc., Azincourt Energy, and

Thunderbird Resources at the Preston, East Preston, and Hook Lake Projects, respectively . The

Company also has several active earn-in option partners, including CSE-listed Basin Uranium Corp.

at the Mann Lake Uranium Project; TSX-V listed North Shore Uranium at the Falcon Project; UraEx

Resources at the South Dufferin and Bolt Projects; Hatchet Uranium at the Highway Project; CSE-

listed Mustang Energy at the 914W Project; and TSX-V listed Terra Clean Energy at the South Falcon

East Project. In aggregate, Skyharbour has now signed earn-in option agreements with partners that

total to over $36 million in partner-funded exploration expenditures, over $20 million worth of shares

being issued, and $14 million in cash payments coming into Skyharbour, assuming that these partner

companies complete their entire earn-ins at the respective projects.

Skyharbour's goal is to maximize shareholder value through new mineral discoveries, committed

long-term partnerships, and the advancement of exploration projects in geopolitically favourable

jurisdictions.

Skyharbour’s Uranium Project Map in the Athabasca Basin:

https://www.skyharbourltd.com/_resources/images/SKY_SaskProject_Locator_2024-11-21_v1.jpg

To find out more about Skyharbour Resources Ltd. (TSX -V: SYH) visit the Company’s website

at www.skyharbourltd.com.

SKYHARBOUR RESOURCES LTD.

“Jordan Trimble”

Jordan Trimble

President and CEO

For further information contact myself or:

Nicholas Coltura

Investor Relations Manager

Skyharbour Resources Ltd.

Telephone: 604-558-5847

Toll Free: 800-567-8181

Facsimile: 604-687-3119

Email: [email protected]

NEITHER THE TSX VENTURE EXCHANGE NOR ITS REGULATION SERVICES PROVIDER

ACCEPTS RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THE CONTENT OF

THIS NEWS RELEASE.

Forward-Looking Information

This news release contains “forward ‐looking information or statements” within the meaning of

applicable securities laws, which may include, without limitation, completing ongoing and planned

work on its projects including drilling and the expected timing of such work programs, other

statements relating to the technical, financial and business prospects of the Company, its projects

and other matters. All statements in this news release, other than statements of historical facts, that

address events or developments that the Co mpany expects to occur, are forward -looking

statements. Although the Company believes the expectations expressed in such forward -looking

statements are based on reasonable assumptions, such statements are not guarantees of future

performance and actual results may differ materially from those in the forward -looking statements.

Such statements and information are based on numerous assumptions regarding present and future

business strategies and the environment in which the Company will operate in the future, including

the price of uranium, the ability to achieve its goals, that general business and economic conditions

will not change in a material adverse manner, that financing will be available if and when needed

and on reasonable terms. Such forward -looking information reflects the Company’s views with

respect to future events and is subject to risks, uncertainties and assumptions, including the risks

and uncertainties relating to the interpretation of exploration results, risks related to the inherent

uncertainty of exploration and cost estimates and the potential for unexpected costs and expenses,

and those filed under the Company’s profile on SEDAR+ at www.sedarplus.ca. Factors that could

cause actual results to differ materially from those in forward looking statements include, but are not

limited to, continued availability of capital and financing and general economic, market or business

conditions, adverse weather or climate conditions, failure to obtain or ma intain all necessary

government permits, approvals and authorizations, failure to obtain or maintain community

acceptance (including First Nations), decrease in the price of uranium and other metals, increase in

costs, litigation, and failure of counterparties to perform their contractual obligations. The Company

does not undertake to update forward‐looking statements or forward‐looking information, except as

required by law.