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SIEN.V ·

Sienna Resources Inc. Closes Final Tranche of Private Placement to Fund Multiple Work Programs None of the securities issued have been registered under the United States Securities Act of 1933, as amended (the " 1933 Act

Financings

Sienna Resources Inc. Closes Final Tranche of

Private Placement to Fund Multiple Work

Programs

None of the securities issued have been registered under the United States Securities Act of 1933, as amended (the "

1933 Act

"), and none of them

may be offered or sold in the United States absent registration or an applicable exemption from the registration requirements of the 1933 Act. This

news release shall not constitute an offer to sell or a solicitation of an offer to buy nor shall there be any sale of the securities in any state where

such offer, solicitation, or sale would be unlawful.

Vancouver, British Columbia--(Newsfile Corp. - November 18, 2025) - Sienna Resources Inc. (TSXV:

SIEN) (FSE: A418KR) (the "Company" or "Sienna") is pleased to announce that, further to its news

releases dated October 17 and October 28, 2025, it has completed the final tranche of its private

placement (the "Financing"). In this final tranche, the Company issued 625,000 units (each, a "Unit") at a

price of $0.12 per Unit, for gross proceeds of $75,000.

Each Unit consists of one common share (a "Share") and one transferable share purchase warrant (a

"Warrant"). Each Warrant entitles the holder to acquire one additional Share (a "Warrant Share") at a

price of $0.17 until November 17, 2030.

The Company paid cash finder's fees of $3,120 and issued 26,000 non-transferable share purchase

warrants (the "Finder's Warrants") to certain finders in connection with this tranche. Each Finder's

Warrant entitles the holder to acquire one Share at a price of $0.17 until November 17, 2027.

All securities issued in connection with this tranche are subject to a statutory hold period expiring March

18, 2026.

The Company has closed total aggregate gross proceeds of $1,913,640.08 from the sale of the first

tranche and the final tranche consisting of 15,947,001 total shares being issued from both tranches.

Net proceeds from the Financing will be used for general working capital and to evaluate and advance

the Company's existing projects, including planned drill programs for both gold and lithium. The

Financing remains subject to final approval from the TSX Venture Exchange.

Jason Gigliotti, President of Sienna states, "Management is very pleased with this final closing. With

more than enough cash on hand to carry out multiple work programs and execute a robust marketing

plan, we are well positioned heading into 2026. Gold is trading near all-time highs, according to

Kitco.com, and lithium carbonate prices are at yearly highs based on TradingEconomics.com. This

bodes well for Sienna's upcoming work programs. We would like to thank all subscribers for their

support and plan to allocate your capital prudently and efficiently to maximize shareholder value."

Contact Information

Tel: 1604-646-6900

www.siennaresourcesinc.com

"Jason Gigliotti"

President

Sienna Resources Inc.

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

release.

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

https://www.newsfilecorp.com/release/274956