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Skyharbour Partner Company Terra Clean Energy Announces Immediate Follow-Up Summer Drill Program on the Back of Drill Results from Winter Program at South Falcon East Uranium Project

Drill Results

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

July 21st, 2025

News Release

Skyharbour Partner Company Terra Clean Energy Announces Immediate Follow-Up

Summer Drill Program on the Back of Drill Results from Winter Program at South Falcon

East Uranium Project

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

SC1P) (“Skyharbour” or the “Company”) is pleased to report that its partner company Terra Clean

Energy Corp. (“Terra”, previously Tisdale Clean Energy) announces results from its Winter 2025 drill

program and provides an update on the upcoming summer drill program at the South Falcon East

Uranium Project (the “ Property”), which hosts the Fraser Lakes B Uranium Deposit. The Property

lies 18 km outside the edge of the Athabasca Basin, approximately 50 km east of the Key Lake mill

and former mine . Skyharbour optioned the Project to Terra , and under the Option Agreement ,

assuming the 75% interest is earned, Terra will fund exploration expenditures totaling CAD

$10,500,000, as well as pay Skyharbour CAD $11,100,000 in cash , of which $6,500,000 can be

settled for shares in the capital of Terra (“Shares”) over the earn-in period.

Map of South Falcon East Project Claims:

https://skyharbourltd.com/_resources/maps/Sky_SouthFalconEast_20250109.jpg?v=1

Winter 2025 Assay Results:

Terra conducted a helicopter-supported drill program at the South Falcon East Property earlier in the

year. Seven diamond drill holes were completed at the Fraser Lakes B Uranium Deposit, for a total

of 1,927 metres. The initial results of these drill holes were reported in press releases dated March

10, 2025, and April 1, 2025. During the winter drill program, 682 samples were submitted for

geochemical analysis at the Geoanalytical Laboratory at the Saskatchewan Res earch Council in

Saskatoon, Saskatchewan. Results have been received and compiled, with the results presented in

Table 1.

Results highlight several wide zones of uranium mineralization in holes SF0063, SF0065, SF0066,

and SF0067, which were drilled to test an inferred NW-SE trending fault cutting through the Fraser

Lakes B Uranium Deposit (Figure 2). The easternmost hole, SF0065, returned 18.1 metres at 0.03%

U3O8, including a subinterval of 0.12% U3O8 over 1.6 metres. Another interval within this hole

returned 0.13 % U3O8 over 0.51 metres within a 3.72 metres interval that ran 0.09% U3O8. The

northernmost hole, SF0067, returned 3.87 metres at 0.05% U3O8, including a subinterval of 0.17 %

U3O8 over 0.5 metres. This 0.5-metre interval represents the best sample of the program. Another

interval within this hole returned 0.03 % U3O8 over 8.05 metres, with 0.16% U3O8 over a 0.5 metre

interval within. The best intersections of the program, which are some of the better intersections for

both grade and width within the deposit, remain open to the north and the east.

When compared with previously released equivalent uranium (%eU 3O8) results from the downhole

gamma logging, the lab results typically highlight wider intervals of mineralization with higher grades

than those identified by the probe. It is not unexpected or unusual for the lab results to be higher

than the equivalent gamma results. The variation can be on average, +5% to +30% higher.

Table 1: Winter 2025 Results from the Fraser Lakes B Deposit at the South Falcon East

Uranium Project:

https://www.skyharbourltd.com/_resources/news/Table_1_Winter_2025_U3O8_results_from_the_F

raser_Lakes_B_Deposit_at_the_South_Falcon_East_Uranium_Pr.png

The typical pathfinder elements used to vector towards uranium in the Basin, including cobalt (Co),

nickel (Ni), copper (Cu), lead (Pb), and zinc (Zn), all appear elevated within the metasedimentary

package hosting the mineralized pegmatites, particularly Co and Ni. Elevated Pb is closely

associated with elevated uranium. Hole SF0067 contains some of the higher pathfinder values,

indicating another vector towards the north.

“The results from the winter drilling program are very encouraging”, commented Trevor Perkins, Vice

President of Exploration for Terra. “The thick mineralized intersections within the pegmatites and

graphitic sediment package are a good sign. The fact that the grades are improving to the north

along the NW fault show s that we are moving in the right direction for a higher -grade discovery”,

continued Mr. Perkins.

“These are some of the best drill results to date at South Falcon,” said Greg Cameron, CEO of Terra.

“The drills returned multiple hits, and an 18 -metre run of uranium at the established grade of the

deposit is a significant and positive development. Several holes returned higher -grade values,

including as much as 466 percent greater than the deposit average. These results indicate our plan

to increase the size and grade of the deposit is both sound and compelling. Drilling will continue

almost immediately, and we’re excited to see what the next phase reveals,” continued Mr. Cameron.

Upcoming Summer 2025 Drill Program:

Terra is planning an extensive follow-up drill program this summer, consisting of approximately 2,500

metres of drilling. The purpose is to test an area highlighted in the winter 2025 program, where it is

interpreted that a north-northwest-trending brittle structure, a north-dipping structure with strong clay

alteration, and mineralized pegmatites with hydrothermal hematite alteration hosted in graphitic

pelitic gneiss all intersect. This places many of the indicators identified as being key components for

higher-grade uranium mineralization all in the same location.

It is generally accepted that for higher-grade uranium deposits in the Athabasca Basin, you require

several key indicators: graphitic metasediments, brittle reactivated basement structures , reducing

fluid (indicated by clay alteration) , and o xidizing fluid (indicated by hematite alteration, transports

uranium). All these features have now been identified in the Fraser Lakes B deposit area. The

location where they are projected to intercept is considered a top-priority target area for the discovery

of a higher -grade unconformity-related, basement-hosted uranium mineralization and additional

mineralized pegmatites.

The upcoming program will be a helicopter-supported drill program comprising seven to ten diamond

drill holes targeting an area approximately 120 to 150 metres north of drill holes SF0063, SF0065,

SF0066 and SF0067, which were completed during the winter program (Figure 2). The summer field

program is anticipated to commence soon and t he campaign will be executed by Terra Logic

Exploration Inc. under the supervision of C. Trevor Perkins, Vice President of Exploration for Terra

Clean Energy. Operations will be based out of a local contracting camp with helicopter support for

the daily drilling activities. The expected budget for this program is anticipated to be C$2 million.

Figure 2: Planned Summer Drilling Area and Completed Winter Drill Holes at South Falcon

East Uranium Project:

https://www.skyharbourltd.com/_resources/images/Planned-summer-drilling-area-completed-

winter-drill.png

“We are excited to get back in there and test where the clay alteration intersects the mineralized

zone and graphitic sediment package,” commented Trevor Perkins, Vice President of Exploration for

Terra. “This is an exciting target as it bring s together many of the key features associated with the

known basement hosted unconformity deposits in and around the Athabasca Basin”, continued Mr.

Perkins.

South Falcon East Project Summary:

The South Falcon East Project is a uranium exploration project in the southeast Athabasca Basin

and represents a portion of Skyharbour Resources Ltd.’s former South Falcon Project. The project

covers approximately 12,464 hectares and is located 18 kilometr es outside the Athabasca Basin,

roughly 50 kilometres east of the Key Lake mill.

The project hosts the Fraser Lakes B Uranium-Thorium Deposit, which contains a historical inferred

resource of 6.9 million pounds U ₃O₈ at an average grade of 0.03% U ₃O₈ and 5.3 million pounds

ThO₂ at 0.023% ThO₂. Mineralization is hosted in shallow, structurally disrupted metasedimentary

rocks and pegmatites, displaying Athabasca-style basement-hosted characteristics and occurring in

association with well-defined EM conductors.

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 Terra Clean Energy Corp.:

Terra Clean Energy (formerly Tisdale Clean Energy Corp) is a Canadian-based uranium exploration

and development company. The Company is currently developing the South Falcon East uranium

project, which hosts an inferred uranium resource within the Fraser Lakes B uranium/thorium deposit,

located in the Athabasca Basin region, Saskatchewan, Canada.

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 the 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.

The securities offered have not been, and will not be, registered under the United States Securities

Act of 1933, as amended (the "U.S. Securities Act") or any U.S. state securities laws, and may not

be offered or sold in the United States or to, or for th e account or benefit of, United States persons

absent registration or an applicable exemption from the registration requirements of the U.S.

Securities Act and applicable U.S. state securities laws. This press release does not constitute an

offer to sell or the solicitation of an offer to buy securities in the United States, nor in any other

jurisdiction.

This release includes certain statements that may be deemed to be "forward -looking statements".

All statements in this release, other than statements of historical facts, that address events or

developments that management of the Company expects, are forward-looking statements, including

the Private Placement. Although management believes the expectations expressed in such forward-

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

future performance, and actual re sults or developments may differ materially from those in the

forward-looking statements. The Company undertakes no obligation to update these forward-looking

statements if management's beliefs, estimates or opinions, or other factors, should change. Factors

that could cause actual results to differ materially from those in forward-looking statements, include

market prices, exploration and development successes, regulatory approvals, continued availability

of capital and financing, and general economic, market or business conditions. Please see the public

filings of the Company at www.sedar.com for further information.