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Sienna Acquires the 10,357 acre "Uranium Town Project" Bordering Denison Mines Corporation in the Athabasca Basin of

Mergers & Acquisitions

Sienna Acquires the 10,357 acre "Uranium

Town Project" Bordering Denison Mines

Corporation in the Athabasca Basin of

Saskatchewan, Canada

Vancouver, British Columbia--(Newsfile Corp. - January 23, 2024) - Sienna Resources Inc. (TSXV: SIE)

(OTC Pink: SNNAF) (FSE: A1XCQ0) ("Sienna" or the "Company") is pleased to announce that it has

acquired 10,357

acre "Uranium Town Project" bordering Denison Mines Corporation

(DML, DNN) in the

Athabasca Basin of Saskatchewan.

The Athabasca Basin is home to the highest-grade uranium

deposits in the world, which includes the highest grade uranium mine in the world owned by Cameco

Corporation.

In 2021, the Fraser Institute ranked Saskatchewan as number one in Canada, the second-

best jurisdiction globally. Sienna management cautions that past results or discoveries on properties in

proximity to Sienna may not necessarily be indicative of the presence of mineralization on the company's

properties.

Recently (January 17, 2024) Sienna acquired the 10,845 contiguous acre "Dragon Uranium Project"

bordering Cameco Corporation (CCO, CCJ) in the Athabasca Basin of Saskatchewan.

Jason Gigliotti, President of Sienna states, "We are very pleased to add a second uranium project to

Sienna's landholdings.

Management's goal is to build shareholder value by acquiring and working on

projects with the highest potential in the most mining friendly jurisdictions.

We plan to be very active in

the uranium space and have the cash on hand to execute this game plan."

About Sienna Resources Inc.

Sienna has recently acquired the 10,357

acre "Uranium Town Project" bordering Denison Mines

Corporation (DML, DNN) and the 10,845 contiguous acre "Dragon Uranium Project" bordering Cameco

Corporation (CCO, CCJ) in the world renowned Athabasca Basin of Saskatchewan.

Also, Sienna

recently expanded the "Elko Lithium Project" in Elko County, Nevada.

This project consists of

approximately 1840 contiguous acres directly bordering Surge Battery Metals' (NILI)

"Nevada North

Lithium Project" in Elko County, Nevada.

Sienna is also one of the larger landholders in Clayton Valley

Nevada. Sienna's Clayton Valley projects include the Blue Clay Lithium Project, the Silver Peak South

Project, and the Clayton Valley Deep Basin Lithium Project. Clayton Valley is home to the only lithium

production in North America, being Albemarle Corp's (ALB) Silver Peak deposit.

This project is also

near Tesla Motors Inc.'s (TSLA) Gigafactory in Nevada. On March 18, 2021, Schlumberger New Energy

Venture (SLB) announced the development of a lithium extraction pilot plant through its new venture,

NeoLith Energy in a strategic partnership with Pure Energy (PE). The deployment of the pilot plant will be

in Clayton Valley, Nevada, USA. The NeoLith Energy sustainable approach uses a differentiated direct

lithium extraction (DLE) process to enable the production of high-purity, battery-grade lithium material

while reducing the production time from over a year to weeks. Results from this pilot plant are expected

in 2024 and could have a significant impact on the brine prospects within Clayton Valley Nevada as

Sienna is located in the deepest section of this brine deposit.

This project was acquired via staking.

Qualified Person:

Mr. Frank Bain, PGeo, a qualified person as defined by National Instrument 43-101 has reviewed and

approved the scientific and technical disclosure contained within this news release.

If you would like to be added to Sienna's email list, please email

[email protected]

for

information or join our twitter account at @SiennaResources.

Contact Information

Tel:

1.604.646.6900

Fax: 1.604.689.1733

www.siennaresources.com

[email protected]

"Jason Gigliotti"

President, Director

Sienna Resources Inc.

Statements in this news release that are not historical facts are forward-looking statements.

Forward-looking statements are statements that are

not historical, and consist primarily of projections - statements regarding future plans, expectations and developments.

Words such as "expects",

"intends", "plans", "may", "could", "potential", "should", "anticipates", "likely", "believes" and words of similar import tend to identify forward-looking

statements.

Forward-looking statements in this news release include uncertainty of exploration and development plans regarding the property;

commodity price fluctuations; political or economic instability and regulatory changes; currency fluctuations, the state of the capital markets;

uncertainty in the measurement of mineral reserves and resource estimates; the Company's ability to attract and retain qualified personnel and

management; potential labour unrest; reclamation and closure requirements for mineral properties and the availability of capital to fund the

Company's projects, as well as other risks and uncertainties identified under the heading "Risk Factors" in the Company's continuous disclosure

documents filed on SEDAR.

You are cautioned that the foregoing list is not exhaustive of all factors and assumptions which may have been used.

The Company cannot assure you that actual events, performance or results will be consistent with these forward-looking statements, and

management's assumptions may prove to be incorrect. These forward-looking statements reflect current expectations regarding future events and

operating performance and speak only as of the date hereof and the Company does not assume any obligation to update forward-looking

statements if circumstances or management's beliefs, expectations or opinions should change other than as required by applicable law. For the

reasons set forth above, you should not place undue reliance on forward-looking statements.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange)

accepts responsibility for the adequacy or accuracy of this press release.

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

https://www.newsfilecorp.com/release/195209