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Skyharbour’s Partner North Shore Uranium Signs Exploration Agreement with English Rivers First Nation

Partnerships & JV

Suite 1030 – 505 Burrard Street, Vancouver, BC, Canada, V7X1M5

www.skyharbourltd.com

TSX-V Trading Symbol: SYH

Email: [email protected]

Telephone: (604) 558-5847

Facsimile: (604) 687-3119

March 20th, 2025

News Release

Skyharbour’s Partner North Shore Uranium Signs Exploration Agreement with English

Rivers First Nation

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

SC1P) (“Skyharbour” or the “Company”), is pleased to announce that its partner company, North

Shore Uranium (“North Shore”), has executed an exploration agreement with the English River First

Nation (“ERFN”) in Saskatchewan (“the Agreement”). The Agreement outlines a number of areas of

collaboration between the ERFN and North Shore at its Falcon property (“Falcon” or the “Property”)

at the eastern margin of the Athabasca Basin in northern Saskatchewan. North Shore may acquire

an initial 80% interest in Falcon by issuing common shares having an aggregate value of CAD

$1,225,000, making aggregate cash payments of $525,000 to Skyharbour, and incurring an

aggregate of $3,550,000 in exploration expenditures on the property over the earn-in period.

Location Map of Falcon Project:

https://skyharbourltd.com/_resources/maps/Sky-SouthFalconOption.jpg?v=0.1

The ERFN is a First Nation with its main reserve Wapachewunak Saskatchewan, located

approximately 200 km southwest of Falcon. ERFN’s ancestral territory covers approximately 75,000

km2 of north-central Saskatchewan. Traditionally, people of the ERFN are known as the “People of

the Great River”, referencing the Churchill River. The ERFN prides itself on being guided by ancestral

traditions and the knowledge of their Elders while being a partner with industry and governments.

More information on the ERFN can be found on the ERFN’s website.

To date, North Shore has identified 36 uranium targets at Falcon. These targets are associated with

electromagnetic (“EM”) conductor anomalies which are often upgraded by other favourable

geophysical and structural features. They were selected based on the analysis and interpretation of

multiple datasets by North Shore and its consultants. As reported on May 16, 2024, North Shore

discovered near-surface uranium mineralization at two drill targets, P03 and P08 in an area that had

never seen drilling. In a Fe bruary 27, 2025, news release, North Shore stated that its near -term

priority is to assess the potential for an economic uranium deposit in the southeastern portion of the

property by evaluating priority near-surface EM targets in the South Priority and South Walker Areas.

Falcon is located approximately 30 km east of the active Key Lake uranium mill and former mine at

the eastern margin of the Athabasca Basin in Saskatchewan. The mill processes uranium ore from

the McArthur River Mine, one of two producing uranium mines in Canada. Between 1983 and 2002,

Key Lake Mine produced a total of 209.9 million lbs. of U3O8 at an average grade of over 2.0%. The

uranium discovery potential at Falcon is significant and includes shallow basement -hosted

unconformity-style and pegmatite -hosted mineralization. The Property has seen limited modern

exploration programs and there are a number of unexplained uranium occurrences.

Map Showing Falcon Exploration Targets and Priority Zones:

https://www.skyharbourltd.com/_resources/images/Map-showing-Falcon-exploration-targets-and-

priority-zones-2.jpg

Mr. Brooke Clements, President and CEO of North Shore stated: “We believe that Saskatchewan’s

Athabasca Basin is the best jurisdiction in the world for uranium exploration and development. North

Shore places a priority on establishing positive relationships with communities near its activities. We

are proud to establish an alliance with the English River First Nation and look forward to a long,

mutually beneficial relationship.”

Next Steps:

North Shore will continue prioritizing targets at Falcon in pursuit of maximizing the chances of

encountering economic uranium mineralization in its next drill program. As currently planned, that

drill program would initially focus on several targets in th e South Priority Area of Zone 1 and the

South Walker Area of Zone 2. Additional updates on North Shore’s target prioritization efforts will be

provided on an ongoing basis.

Falcon Uranium Project:

The Falcon Project, which constitutes part of North Shore’s Falcon Property, contains eleven mineral

claims comprising approximately 42,908 hectares approximately 50 km east of the Key Lake mine.

Nine of the claims are from Skyharbour’s original South Falcon Uranium Project and the remaining

two claims are from Skyharbour’s Foster River Project. Historical uranium mineralization discovered

at Falcon is shallow and is hosted in several geological settings including classic Athabasca -style

basement mineralization associated with well-developed EM conductors. At the EWA target , up to

0.492% U3O8 and 1,300 ppm lead was encountered in outcrop grab samples (Sask. Mineral Deposits

Index [SMDI] 5038). Historical grab sampling at Knob Lake (SMDI 1014) also encountered up to

0.01% U 3O8 in an outcrop of pegmatite, while anomalous nickel, copper, and molybdenum were

found in historical grab samples from the Fraser North target area (SMDI’s 1125 and 1126).

A well-defined northeast-trending, locally folded, electromagnetic conductor system runs throughout

the Property, which was defined by airborne and ground geophysical surveys by JNR Resources

(“JNR”) in the 2000’s. In 2008 JNR conducted a drill campaign at the property area. Of the 47 holes

drilled that year, 28 holes (totaling 7,348 metres) were drilled on the South Falcon Uranium Property

at the Walker (14 holes), Walker South (7 holes), and EWA target areas (6 holes). At the Walker and

South Walker targe ts, which lie along the aforementioned EM conductor system, structurally

disrupted and variably altered metasediments (including graphitic pelitic gneisses) with anomalous

boron, copper, molybdenum, nickel, cobalt, arsenic, and vanadium were encountered in several drill

holes. During this same drill campaign, the Fraser Lakes Zone B uranium deposit was discovered

approximately four kilometres east of the Walker South target on a refolded extension of the EM

conductor system. At the EWA target, which lies along a separate northeast-trending EM conductor,

anomalous uranium , boron, lead, and molybdenum were encountered in structurally disrupted

pegmatites; the best result was 0.235% U3O8 over 0.5 m (within a 3.5 m interval of 0.113% U3O8) in

hole WYL-08-501 (Sask. Mineral Assessment File 74H02-0045).

Furthermore, in 2022, Skyharbour completed a FALCON® airborne gravity gradiometer and

magnetic survey over nine of the eleven claims at the Falcon Property. This new geophysical data

will assist North Shore in prioritizing areas along the EM conductor system for drilling. Over 30

kilometres of th e EM conductor system remains untested on the Falcon Property. North Shore’s

initial focus will be on the two claims formerly part of the Foster Project (geophysics), and on

generating drill targets on three claims at the southeastern end of th e EM conductor systems

including Knob Lake, which shows similarities to the Fraser Lakes Zone B deposit approximately 6

km to the northeast and several other high-priority targets elsewhere along the main EM conductor

system.

Significant potential exists on the p roject for basement -hosted, unconformity -related uranium

deposits like those further to the north in the Wollaston Domain (i.e. Eagle Point, Rabbit Lake, Key

Lake and others) , as well as for pegmatite/granite -hosted (i.e. alaskite -type) U -Th-REE

mineralization like at the Fraser Lakes Zone B deposit on Skyharbour’s adjacent South Falcon East

Property, currently under option to Tisdale Clean Energy.

The Option Agreement:

North Shore may acquire an initial 80% interest in the Property by issuing common shares of the

Resulting Issuer (“Shares”) having an aggregate value of CAD $1,225,000; making aggregate cash

payments of CAD $525,000; and incurring an aggregate of CAD $3,550,000 in exploration

expenditures on the Property over a three-year period. Once North Shore has earned an initial 80%

interest in the Property, North Shore may acquire the remaining 20% interest in the Property within

90 business days by issuing Shares having a value of CAD $5,000,000, and making a cash payment

of CAD $5,000,000 to Skyharbour. If North Shore does not elect to acquire the remaining 20%

interest, a joint venture will be formed with Skyharbour holding a 20% participating interest.

North Shore will be the operator of the exploration programs during the earn-in stage and for the joint

venture if formed. Two claims totaling 10,673 hectares that form part of Skyharbour’s Foster River

Property are subject to a one percent (1%) NSR royalty payable to Skyharbour. The remaining nine

claims totaling 32,235 hectares that comprise Skyharbour’s South Falcon Point Property are subject

to a two percent (2%) NSR royalty payable to Denison Mines Corp. (“Denison”) with North Shore

having the right to purchase one percent of the royalty from Denison at anytime by paying $1 million.

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 North Shore Uranium Ltd:

North Shore is a mineral exploration company focused on uranium exploration at the eastern margin

of the Athabasca Basin through its Falcon property which will increase from 12,800 to 55,700

hectares with the addition of the claims subject to the Agreement, and the West Bear property located

90 kilometres to the northeast.

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 Company 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 c limate conditions, failure to obtain or maintain all necessary

government permits, approvals and authorizations, failure to obta in 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.