File: '\\swfile\EmailIn\20260904 150840 Attachment 2026-09-04 MUSL - PP-GSM.docx'

Promino Announces Proposed Private Placement

NOT FOR DISTRIBUTION TO UNITED STATES NEWSWIRE SERVICES OR FOR DISSEMINATION IN THE UNITED STATES

BURLINGTON, Ontario - September 4, 2026 - Promino Nutritional Sciences Inc. (CSE: MUSL) (OTC: MUSLF) (FSE: 93X) ("Promino" or the "Company") announces that it intends to complete a non-brokered private placement for aggregate gross proceeds of up to $1,600,000 through the issuance of up to 53,333,333 units of the Company ("Units") at a price of $0.03 per Unit (the "Offering"). Each Unit will consist of one common share (each, a "Share") and one half of one common share purchase warrant (each whole warrant, a "Warrant"), with each Warrant being exercisable to purchase one additional Share at a price of $0.06 for twelve (12) months from the date of issuance.

The Company may pay finders' fees in connection with the Offering, as permitted by applicable securities laws and the rules of the Canadian Securities Exchange.

The Company intends to use the net proceeds from the Offering to (a) invest in growth of our product sales and (b) for general corporate purposes, excluding accrued salaries to officers or directors of the Company and payment for Investor Relations Activities (as such term is defined in the policies of the Canadian Securities Exchange).

The Offering is expected to close on or about October 23, 2026 and is subject to execution of subscription agreements by the placees and to certain conditions including, but not limited to, the receipt of all necessary regulatory approvals, including the approval of the Canadian Securities Exchange.

All securities issued in connection with the Offering will be subject to a four month and one day statutory resale restriction pursuant to applicable Canadian securities laws.

The securities being offered under the Offering have not been and will not be registered under the United States Securities Act of 1933, as amended, or any state securities laws and may not be offered or sold in the United States or to, or for the account or benefit of, U.S. persons absent registration or an applicable exemption from the registration requirements. This press release does not constitute an offer to sell or the solicitation of an offer to buy nor will there be any sale of the securities in any State in which such offer, solicitation or sale would be unlawful.

The Company would also like to announce that, further to its July 10 and July 24, 2026 news releases regarding the engagement of Gold Standard Media, LLC, it has terminated the engagement effectively immediately.

About Promino Nutritional Sciences Inc.

Promino Nutritional Sciences is a Canadian innovation company focused on science-based, clinically proven nutrition for muscle health and recovery. Its core product, Rejuvenate Muscle Health(TM), is a clinically researched proprietary amino acid formula designed to rebuild, restore, and rejuvenate muscle tissue.

The Company also produces Promino(TM) - NSF Certified for Sport(TM), trusted by elite athletes. Promino's ambassadors include MLB legend Jose Bautista.

Learn more at www.drinkpromino.com and www.drinkrej.com.

For further information about Promino:

Moira Ong, CFO, mong@drinkpromino.com, 1-855-348-1970 (extension 204)

Forward-Looking Statements

This news release contains forward-looking statements and forward-looking information (collectively, "forward-looking statements") within the meaning of applicable Canadian securities laws. Forward-looking statements are often, but not always, identified by terms such as "will", "may", "should", "anticipates", "expects", "intends", "plans", "believes", "estimates" and similar expressions. Forward-looking statements in this news release include, but are not limited to, statements regarding the success of the private placement. Forward-looking statements are based on a number of assumptions made by management that the Company believes to be reasonable in the circumstances. Forward-looking statements are subject to known and unknown risks, uncertainties and other factors that may cause actual results, performance or developments to differ materially from those expressed or implied by such statements, including, without limitation: risk factors described in the Company's continuous disclosure documents filed on SEDAR+ at www.sedarplus.ca, including the Company's most recent management's discussion and analysis. There can be no assurance that such statements will prove to be accurate, and actual results and future events could differ materially from those anticipated in such statements. The reader is cautioned not to place undue reliance on forward-looking statements. Forward-looking statements contained in this news release are made as of the date of this news release, and the Company does not undertake any obligation to update or revise publicly any forward-looking statements, whether as a result of new information, future events or otherwise, except as expressly required by applicable securities laws.