Mr. Jason Gigliotti reports

SIENNA ACQUIRES THE 10,845 ACRE "DRAGON URANIUM PROJECT" BORDERING CAMECO IN THE ATHABASCA BASIN OF SASKATCHEWAN

Sienna Resources Inc. has acquired the 10,845-contiguous-acre Dragon uranium project bordering Cameco Corp. in the world renowned Athabasca basin of Saskatchewan. According to the World Nuclear Association (WNA), the highest-grade uranium mine in the world is Cameco's Cigar Lake in the Athabasca basin of Saskatchewan, Canada. It has an average grade of 14.69 per cent U3O8 (triuranium octoxide). 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. In 2021, the Fraser Institute ranked Saskatchewan as No. 1 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.

Jason Gigliotti, president of Sienna, states: "Uranium prices have hit a 16-year high this week and management feels that diversifying into uranium while keeping our lithium focus makes sense. Establishing a large footprint in the most prolific uranium address on the globe, bordering the biggest name in uranium, Cameco, provides Sienna and Sienna shareholders with exposure to the best-performing sector in mining in the past year. Management continues to try to add projects that are accretive to the growth of Sienna and we have enough cash on hand to forward these projects."

About Sienna Resources Inc.

Sienna has recently acquired the 10,845-acre Dragon uranium project bordering Cameco Corp. 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 1,840 contiguous acres directly bordering Surge Battery Metals' 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 Silver Peak deposit. This project is also near Tesla Motors Inc.'s gigafactory in Nevada. On March 18, 2021, Schlumberger New Energy Venture announced the development of a lithium extraction pilot plant through its new venture, NeoLith Energy, in a strategic partnership with Pure Energy. The deployment of the pilot plant will be in Clayton Valley, Nevada, United States. 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

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.

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