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F3 Hits 2.50% over 1.0m - Confirms High Grade Uranium Discovery at Tetra Zone

Drill Results

F3 Hits 2.50% over 1.0m - Confirms High Grade

Uranium Discovery at Tetra Zone

Kelowna, British Columbia--(Newsfile Corp. - July 7, 2025) -

F3 Uranium Corp

(TSXV: FUU)

(OTCQB: FUUFF)

("

F3

" or "

the Company

") is pleased to announce the assay results of Tetra Zone

Discovery Hole PLN25-205 which returned a

1.0m high grade interval with 2.50% U

3

O

8

within a

22.5m mineralized main interval averaging 0.26% U

3

O

8

from 384.5m to 407.0m. A

secondary

mineralized

zone above the main zone

averaged 0.125% U

3

O

8

over 3.5m

from 377.5m to 381.0m.

Strong radioactivity in discovery hole PLN25-205 was first announced on April 15, 2025, on the Broach

Lake Property, part of F3's PLN Project. Drilling on the Tetra Zone is ongoing with one diamond drill and

one sonic drill.

Tetra Zone Discovery Assay Highlights:

PLN25-205

(line 11310S):

0.5m @ 0.056% U

3

O

8

(373.0m to 373.5m), and

3.5m @ 0.125% U

3

O

8

(377.5m to 381.0m), and

22.5m @ 0.26% U

3

O

8

(384.5m to 407.0m), including

0.5m @ 1.25% U

3

O

8

(389.5m to 390.0m), and

1.0m @ 2.50% U

3

O

8

(398.0m to 399.0m)

Map 1. Tetra Zone I Assay Results PLN25-205

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

https://images.newsfilecorp.com/files/8110/257907_f036a9b99479f862_002full.jpg

Table 1. Drill Hole Summary and Uranium Assay Results

Collar Information

Assay Results

Hole ID

Grid

Line

Easting

Northing

Elevation

Az

Dip

From

(m)

To

(m)

Interval

(m)

U

3

O

8

weight %

PLN25-205

11310S

589327

6397941

583

46

-65

377.50

381.00

3.50

0.13

384.50

407.00

22.50

0.26

incl.

389.50

390.00

0.50

1.23

also incl.

398.00

399.00

1.00

2.50

further incl.

398.00

398.50

0.50

3.85

Samples from the drill core are split into half sections on site. Where possible, samples are

standardized at 0.5m down-hole intervals. One-half of the split sample is sent to SRC Geoanalytical

Laboratories (an SCC ISO/IEC 17025: 2005 Accredited Facility) in Saskatoon, SK while the other half

remains on site for reference. Analysis includes a 63 element suite including boron by ICP-OES, uranium

by ICP-MS and gold analysis by ICP-OES and/or AAS.

The Company considers uranium mineralization with assay results of greater than 1.0 weight % U

3

O

8

as

"high grade" and results greater than 20.0 weight % U

3

O

8

as "ultra-high grade".

All depth measurements reported are down-hole and true thicknesses are yet to be determined.

About the Patterson Lake North Project:

The Company's 42,961-hectare 100% owned Patterson Lake North Project (PLN) is located just within

the south-western edge of the Athabasca Basin in proximity to Paladin's Triple R and NexGen Energy's

Arrow high-grade uranium deposits, an area poised to become the next major area of development for

new uranium operations in northern Saskatchewan. The PLN Project consists of the 4,074-hectare

Patterson Lake North Property hosting the JR Zone Uranium discovery approximately 23km northwest of

Paladin's Triple R deposit, the 19,864-hectare Minto Property, and the 19,022-hectare Broach Property

hosting the Tetra Zone, F3's newest discovery 13km south of the JR Zone. All three properties

comprising the PLN Project are accessed by Provincial Highway 955.

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 approved on behalf of the company by

Raymond Ashley, P.Geo., President & COO of F3 Uranium Corp, a Qualified Person. Mr. Ashley has

reviewed and approved the data disclosed.

About F3 Uranium Corp.:

F3 Uranium is a uranium exploration company, focusing on the recently discovered high-grade JR Zone

on its Patterson Lake North (PLN) Project in the Western Athabasca Basin. F3 Uranium currently has 3

properties in the Athabasca Basin: Patterson Lake North, Minto, and Broach

.

The western side of the

Athabasca Basin, Saskatchewan, is home to some of the world's largest high grade uranium deposits

including Paladin's Triple R and Nexgen's Arrow.

Forward-Looking Statements

This news release contains certain forward-looking statements within the meaning of applicable

securities laws. All statements that are not historical facts, including without limitation, statements

regarding future estimates, plans, programs, forecasts, projections, objectives, assumptions,

expectations or beliefs of future performance, including statements regarding the suitability of the

Properties for mining exploration, future payments, issuance of shares and work commitment funds,

entry into of a definitive option agreement respecting the Properties, are "forward-looking statements."

These forward-looking statements reflect the expectations or beliefs of management of the Company

based on information currently available to it. Forward-looking statements are subject to a number of

risks and uncertainties, including those detailed from time to time in filings made by the Company with

securities regulatory authorities, which may cause actual outcomes to differ materially from those

discussed in the forward-looking statements. These factors should be considered carefully and readers

are cautioned not to place undue reliance on such forward-looking statements. The forward-looking

statements and information contained in this news release are made as of the date hereof and the

Company undertakes no obligation to update publicly or revise any forward-looking statements or

information, whether as a result of new information, future events or otherwise, unless so required by

applicable securities laws.

The TSX Venture Exchange and the Canadian Securities Exchange have not reviewed, approved or

disapproved the contents of this press release, and do not accept responsibility for the adequacy or

accuracy of this release.

F3 Uranium Corp.

750-1620 Dickson Avenue

Kelowna, BC V1Y9Y2

Contact Information

Investor Relations

Telephone: 778 484 8030

Email:

[email protected]

ON BEHALF OF THE BOARD

"Dev Randhawa"

Dev Randhawa, CEO

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

https://www.newsfilecorp.com/release/257907