Friday, September 18, 2026
MiningNewsTerminal
Friday, September 18, 2026 Admin

FUU.V ·

F3 - Starts High Resolution Geophysics at Tetra Zone

Exploration Programs

F3 - Starts High Resolution Geophysics at

Tetra Zone

Kelowna, British Columbia--(Newsfile Corp. - September 2, 2025) -

F3 Uranium Corp

(

TSXV: FUU

)

(

OTCQB: FUUFF

) (

FSE: GL7

) ("

F3

" or "

the Company

") is pleased to announce the commencement

of ground EM surveys at its 100% owned Broach Lake Property, where F3 intersected 67.0m total

composite radioactivity at the Tetra Zone (see NR August 5, 2025). A uniquely designed 65km of

stepwise moving loop electromagnetic (SWMLEM) surveying will be completed initially on a priority grid

covering the mineralized conductive zone between the Tetra Zone and historic drillhole PAT-16-002,

located 1.2km to the southeast, where maiden geochemical analysis by F3 returned 423ppm uranium

over 0.5m (see NR July 21, 2025). This survey will give greater confidence in locating the Tetra

conductor and reduce the number of drillholes required to target along step-outs.

Sam Hartmann, Vice President Exploration, commented:

"Earlier this year (see NR February 11, 2025) we announced the commencement of our exploration

program at the Patterson Lake Project, including the Broach Lake Project with a 41 line-km moving loop

time domain (MLTDEM) ground geophysics survey which was a first pass exploratory survey. By March

(see NR March 18, 2025) we intersected the first anomalous radioactivity with PLN25-202 which

encountered six distinct zones of anomalous radioactivity over a 90m downhole interval. In April (see NR

April 15, 2025) we discovered the Tetra Zone with 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.

Today we announce a new stepwise moving loop electromagnetic (SWMLEM) survey designed to cover

the highest priority section of the Tetra Conductor over a 1,600m strike length including the ~1,200m

between the Tetra Zone and PAT-16-002. It aims to detect subtle basement-hosted conductors through

highly conductive overburden. This tighter survey based on 200m spaced lines will give us greater

control over local conductor locations and reduce exploration drilling."

Map 1. Broach Lake - Tetra Zone Stepwise Moving Loop Electromagnetic Survey

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

https://images.newsfilecorp.com/files/8110/264644_c31f2d8cc4d9a81f_002full.jpg

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 is a uranium exploration company, focusing on the high-grade JR Zone and new Tetra Zone

discovery 13km to the south in the PW area on its Patterson Lake North (PLN) Project in the Western

Athabasca Basin. F3 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 project and NexGen's Arrow project.

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/264644