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F3 Hits More Off Scale >65,535 CPS at JR; Increases Prospectivity at B1

Corporate Updates

F3 Hits More Off Scale >65,535 CPS at JR;

Increases Prospectivity at B1

Kelowna, British Columbia--(Newsfile Corp. - December 18, 2023) -

F3 Uranium Corp

(TSXV: FUU)

(OTCQB: FUUFF)

("

F3

" or "

the Company

") is pleased to announce initial scintillometer results from

the last eleven drill holes of the fall drill program on the Patterson Lake North ("PLN") Property, including

multiple high grade intercepts. In particular drill hole PLN23-110 tested for mineralization up dip of

PLN23-101 (see NR dated October 16, 2023) and intersected mineralization within a 11.5m interval

including

1.50m of continuous off scale radioactivity (>65,535 cps).

Drill hole PLN23-112 tested

mineralization down dip of PLN23-068 (see NR dated August 14, 2023) and intersected mineralization

within a 11.5m interval including

1.35m of composite off-scale radioactivity (65,535 cps).

The southern end of the A1 trend features significant vertical displacement; drill holes PLN23-078 and

PLN23-093 (section line 2640S, see Map 2) were cored into bedrock with no Athabasca Sandstone

present. Drill holes grid south including PLN23-115 and PLN23-111 have approximately 230m of

sandstone cover; this indicated the presence of a vertically offsetting and likely cross cutting structure.

At the B1 area, exploration drilling is encountering increasingly prospective geology. PLN23-111 was

drilled approximately 200m grid north of PLN23-093 where significant boron values were reported (see

NR dated November 27, 2023) and cored a significant section of intensely brecciated, faulted and clay

altered Athabasca Sandstone (see Figure 1). The strongly graphitic and clay altered basement hosted

B1 shear zone was intersected below. This is indicative of significant reactivated structures favorable for

hosting uranium mineralization.

A total of 53 drill holes totaling 19,800 meters have been completed since the summer drill program

began in June, and an additional 5 targets have casing already set in anticipation of the upcoming winter

2024 drill campaign slated to begin in early January 2024.

Sam Hartmann, VP Exploration, commented:

"As we break for the holiday season, we would like to thank our staff and contractors for their hard work

and dedication over the past six months. Preparation and planning for the winter 2024 program is

already underway, and we look forward to receiving exploration geochemistry results from the B1 area,

as well as ground resistivity interpretations from the A1 and B1 areas which will drive exploration efforts

aimed at discovering additional mineralized zones. Recent JR Zone drilling focused on defining the

boundaries of mineralization, but continued to yield high grade intercepts which will be followed up.

Phase 1 of the DIAS 3D-DCIP ground resistivity survey is still in progress, and currently working over the

B1 area. Recent drill hole intercepts at B1, including sandstone dissolution and silicification, as seen in

PLN23-111, as well as basement hosted conductive structures related to the B1 shear, will be used to

create constrained 2D and 3D inversions to assist in our winter drill targeting."

Drilling Highlights:

PLN23-110

(line 015S):

11.5m

interval with mineralization from 216.5m - 228.0m, including

3.0m

mineralization from 216.5m - 219.5m,

and

4.0m

mineralization from 224.0m - 228.0m,

including

1.50m continuous off-scale radioactivity (> 65,535 cps)

between 226.00m and 227.50m

PLN23-112

(line 060S):

11.5m

mineralization from 229.0m - 240.5m,

including

1.35m composite

off-scale radioactivity (> 65,535 cps)

between 231.80 and 240.00m

Drilling Intercepts:

PLN23-105

(line 3450S): B1 Exploration

No mineralization >300 cps

PLN23-106

(line 120S):

3.5m

mineralization from 199.0m to 202.5m,

and

4.5m

mineralization from 239.0m to 243.5m

PLN23-107

(line 3450S): B1 Exploration

No mineralization >300 cps

PLN23-108

(line 030S):

1.0m

mineralization from 256.0m to 257.0m,

and

2.0m

mineralization from 260.0m to 262.0m

PLN23-109

(line 015S):

3.0m

mineralization from 220.5m to 223.5m

PLN23-111

(line 3240S): B1 Exploration

No mineralization >300 cps

PLN23-113

(line 930S): A1 Exploration

No mineralization >300 cps

PLN23-114

(line 030S):

3.5m

mineralization from 219.0m to 222.5m,

and

2.0m

mineralization from 230.0m to 232.0m, including

0.35m

of continuous radioactivity >10,000 cps between 231.15m and 231.50m

PLN23-115

(line 2955S): B1 Exploration

No mineralization >300 cps

Natural gamma radiation in the drill core that is reported in this news release was measured in counts

per second (cps) using a handheld Radiation Solutions RS-125 scintillometer. The Company considers

greater than 300 cps on the handheld spectrometer as anomalous, >10,000 cps as high grade and

greater than 65,535 cps as off-scale. The reader is cautioned that scintillometer readings are not directly

or uniformly related to uranium grades of the rock sample measured and should be used only as a

preliminary indication of the presence of radioactive materials. Samples from the drill core are split in

half on site and are standardized at 0.5m lengths. One half of the split sample will be submitted to SRC

Geoanalytical Laboratories (an SCC ISO/IEC 17025: 2005 Accredited Facility) in Saskatoon, SK. for

lithogeochemical analysis using their "Uranium Package".

All depth measurements reported are down-hole and true thickness are yet to be determined but the

Company estimates true thickness of the reported intervals in this news release to be close to reported

interval widths.

Table 1. Drill Hole Summary and Handheld Spectrometer Results

Collar Information

* Hand-held Spectrometer Results On

Mineralized Drillcore (>300 cps / >0.5m

minimum)

Athabasca

Unconformity

Depth (m)

Total

Drillhole

Depth (m)

Hole ID

Section

Line

Easting

Northing

Elevation

Az

Dip

From

(m)

To

(m)

Interval

(m)

Max

CPS

PLN23-

105

3450S

589764.9

6407978.1

540.4

53.3

-65.0

B1 exploration; no radioactivity >300 cps

366.9

713

PLN23-

106

120S

587761.4

6410639.4

544.4

54.3

-64.1

199.00

199.50

0.50

1700

186.0

326

199.50

200.00

0.50

1500

200.00

201.00

1.00

<300

201.00

201.50

0.50

1500

201.50

202.00

0.50

3000

202.00

202.50

0.50

1600

239.00

239.50

0.50

350

239.50

241.00

1.50

<300

241.00

241.50

0.50

860

241.50

243.00

1.50

<300

243.00

243.50

0.50

310

PLN23-

107

3450S

589673.7

6407913.1

539.9

55.0

-65.2

B1 exploration; no radioactivity >300 cps

359.8

626

PLN23-

108

030S

587682.1

6410692.8

545.1

53.6

-60.3

256.00

256.50

0.50

730

201.7

371

256.50

257.00

0.50

3500

260.00

260.50

0.50

380

260.50

261.00

0.50

4600

261.00

261.50

0.50

<300

261.50

262.00

0.50

320

PLN23-

109

015S

587739.0

6410762.5

545.5

54.7

-74.9

220.50

221.00

0.50

530

188.0

344

221.00

221.50

0.50

1400

221.50

222.00

0.50

1300

222.00

222.50

0.50

4600

222.50

223.00

0.50

3400

223.00

223.50

0.50

3300

PLN23-

110

015S

587733.4

6410749.2

545.5

53.3

-61.8

216.50

217.00

0.50

370

201.2

332

217.00

217.50

0.50

1400

217.50

218.00

0.50

1500

218.00

218.50

0.50

930

218.50

219.00

0.50

1300

219.00

219.50

0.50

2200

224.00

224.50

0.50

300

224.50

226.00

1.50

<300

226.00

226.50

0.50

>65535

226.50

227.00

0.50

>65535

227.00

227.50

0.50

>65535

227.50

227.80

0.30

53900

227.80

228.00

0.20

1900

PLN23-

111

3240S

589638.6

6408148.6

535.5

55.2

-65.2

B1 exploration; no radioactivity >300 cps

362.5

566

PLN23-

112

060S

587748.7

6410702.1

545.7

53.3

-65.5

224.00

224.50

0.50

1100

197.2

317

229.00

229.50

0.50

800

229.50

230.00

0.50

3400

230.00

230.50

0.50

4900

230.50

231.00

0.50

<300

231.00

231.50

0.50

750

231.50

231.80

0.30

9700

231.80

232.00

0.20

>65535

232.00

232.50

0.50

>65535

232.50

233.00

0.50

3300

233.00

233.50

0.50

380

233.50

234.00

0.50

380

234.00

234.50

0.50

350

234.50

235.00

0.50

430

235.00

235.50

0.50

<300

235.50

236.00

0.50

300

236.00

236.50

0.50

860

236.50

237.00

0.50

2100

237.00

237.50

0.50

5300

237.50

238.00

0.50

8900

238.00

238.15

0.15

8800

238.15

238.50

0.35

>65535

238.50

239.00

0.50

3200

239.00

239.50

0.50

3900

239.50

239.70

0.20

8100

239.70

240.00

0.30

>65535

240.00

240.50

0.50

3500

244.00

244.50

0.50

340

PLN23-

113

930S

588352.9

6410068.3

532.9

52.8

-65.0

A1 exploration; no radioactivity >300 cps

n/a

287

PLN23-

114

030S

587736.8

6410733.3

545.5

54.8

-58.1

219.00

219.50

0.50

360

207.2

317

219.50

220.00

0.50

440

220.00

221.00

1.00

<300

221.00

221.50

0.50

330

221.50

222.00

0.50

<300

222.00

222.50

0.50

350

230.00

230.50

0.50

360

230.50

231.00

0.50

2100

231.00

231.15

0.15

9900

231.15

231.50

0.35

20000

231.50

232.00

0.50

1100

235.50

236.00

0.50

1400

236.00

236.50

0.50

350

293.00

293.50

0.50

510

PLN23-

115

2955S

589548.1

6408433.1

530.8

42.9

-67.9

B1 exploration; no radioactivity >300 cps

337.2

479

Figure 1: PLN23-111

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

https://images.newsfilecorp.com/files/8110/191395_36aebfd6640e7b12_003full.jpg

Handheld spectrometer composite parameters:

1

.

Minimum Thickness of 0.5m

2

.

CPS Cut-Off of 300 counts per second

3

.

Maximum Internal Dilution of 2.0m

About Patterson Lake North:

The Company's 4,078-hectare 100% owned Patterson Lake North property (PLN) is located just within

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

Energy's Arrow high-grade world class uranium deposits which is poised to become the next major area

of development for new uranium operations in northern Saskatchewan. PLN is accessed by Provincial

Highway 955, which transects the property, and the new JR Zone uranium discovery is located 23km

northwest of Fission Uranium's Triple R deposit.

Qualified Person:

The technical information in this news release has been prepare 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

verified the data disclosed.

About F3 Uranium Corp:

F3 Uranium is a uranium project generator and exploration company, focusing on projects in the

Athabasca Basin, home to some of the world's largest high grade uranium discovery. F3 Uranium

currently has 18 projects in the Athabasca Basin. Several of F3's projects are near large uranium

discoveries including Triple R, Arrow and Hurricane.

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

See plan maps below and cross sections at

PLN JR Zone| F3 Uranium Corp.

under "Sections"

Figure 2

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

https://images.newsfilecorp.com/files/8110/191395_36aebfd6640e7b12_004full.jpg

Figure 3

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

https://images.newsfilecorp.com/files/8110/191395_36aebfd6640e7b12_005full.jpg

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

https://www.newsfilecorp.com/release/191395