Mr. Jason Gigliotti reports

SIENNA RESOURCES INC. ENGAGES DRILLER FOR THE ESMERALDA COUNTY GOLD PROJECT IN NEVADA

Sienna Resources Inc. has engaged Titan Drilling Ltd. to conduct the maiden drill program on the Esmeralda county gold project in Nevada. Drilling is expected to commence in the coming weeks.

Jason Gigliotti, president of Sienna Resources, stated: "This is very exciting for Sienna management and shareholders. This is our maiden drill program on this project and the first drill program this year. Sienna has just over 45 million shares out so the structure is strong and our cash position is intact to be able to move forward on multiple work programs in the second half of 2026. With a current market capitalization of just over $3-million, any success in the ground could produce an outsized impact for the company. We look forward to the second half of the year."

About Sienna Resources Inc.

Sienna's primary focus is on its lithium assets in Nevada, which include the 100-per-cent-owned, 1,828-acre Elko lithium project and the 1,231-acre Cave Creek lithium project, both located in Elko county, Nevada, directly bordering and nearly surrounded by Surge Battery Metals' Nevada North lithium project -- the highest-grade lithium clay deposit in the United States. In Clayton Valley, Nevada, Sienna holds the 2,300-acre Deep Basin lithium brine joint venture, which has access to some of the deepest parts of the only lithium brine basin with active production in the United States. Also in Nevada, Sienna holds the 1,156-acre Esmeralda county gold project. In Saskatchewan, Sienna holds the 31,718-acre Stonesthrow project, prospective for gold, silver and copper, located directly adjacent to Ramp Metals Inc.'s Rottenstone project.

Qualified person

The technical contents of this release were reviewed and approved by Frank Bain, PGeo, independent to the company and qualified person as defined by National Instrument 43-101.