Sienna Again Significantly Increases Acreage Of Case Lake West Cesium And Spodumene Pegmatite Project In Ontario To 7,850 Contiguous Acres.

(MENAFN- Newsfile Corp) Vancouver, British Columbia--(Newsfile Corp. - October 3, 2024) - Sienna Resources Inc. (TSXV: SIE) (OTC Pink: SNNAF) (FSE: A1XCQ0) ("Sienna" or the "Company") is pleased to announce that it has significantly increased its acreage on the "Case Lake West Cesium and Spodumene Pegmatite Project" in Larder Lake mining division of Ontario, Canada, roughly 100 km north of Kirkland Lake, NE Ontario. This project now consists of approximately 7,850 contiguous acres prospective for Cesium and Spodumene Pegmatites directly bordering Power Metals Corp.'s Case Lake cesium and pegmatite swarm discovery. On May 22, 2024, Power Metals announced, "world-class cesium results up to 18.13 per cent at Case Lake." This was very exciting news regarding this growing cesium district. 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 Resources Inc. stated, "We are pleased to increase our footprint to now being approximately 7,850 contiguous acres on the Case Lake West Cesium and Spodumene Pegmatite Project in Ontario. The area is quickly gaining global attention as it is one of the world's only areas prospective for Cesium. Sienna has once again significantly increased its acreage in this exciting mining district and management looks forward to getting the work program underway on this project. Sienna is coming into a very active period and management is very optimistic about the short and long term growth drivers in place now."

Case Lake West Project
To view an enhanced version of this graphic, please visit:

About Sienna Resources Inc.

Sienna has significantly increased acreage of the "Stonesthrow Gold Project", consisting now of approximately 31,718 contiguous acres prospective for gold. Sienna has also recently acquired the "Case Lake West Cesium and Spodumene Pegmatite Project" in Larder Lake Mining division of Ontario, Canada roughly 100 km north of Kirkland Lake, NE Ontario. This project consists of approximately 7,850 contiguous acres prospective for Cesium and Spodumene Pegmatites. Sienna has also just acquired the 10,357 acre "Uranium Town Project" bordering Denison Mines Corporation, the now 23,134 contiguous acre "Dragon Uranium Project" bordering Cameco Corporation and the 55,440 acre "Atomic Uranium Project" in the world renowned Athabasca Basin of Saskatchewan. Also, Sienna has the "Elko Lithium Project" in Elko County, Nevada consisting of approximately 1830 contiguous acres directly bordering Surge Battery Metals' "Nevada North Lithium Project" in Elko County, Nevada who announced the highest grade lithium deposit in the USA. 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 with a strategic partnership with Pure Energy. On September 10, 2024, SLB announced that the "Nevada demonstration plant integrates direct lithium extraction (DLE), concentration and conversion technologies to sustainably produce lithium at scale with integrated technology solution produces lithium from brine 500 times faster than conventional methods while using significantly less land, water and chemical reagents with a verified results confirm recovery rate of 96% lithium from brine at operational rates." The success that SLB achieved could have a significant future impact on the brine prospects within Clayton Valley Nevada as Sienna is located in the deepest section of this brine deposit.

This new acreage 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 ... for information or join our Twitter account at @SiennaResources.

MENAFN03102024004218003983ID1108742043