File: '\\swfile\EmailIn\20260630 152136 Attachment 2026-06-30 MUSL - Corp update (final).docx'

Promino Provides Corporate Update

BURLINGTON, Ontario - June 30, 2026 - Promino Nutritional Sciences Inc. (CSE: MUSL) (OTC: MUSLF) (FSE: 93X) ("Promino" or the "Company") announces that it has been served with a Statement of Claim (the "Claim") commenced in the Ontario Superior Court of Justice by its former Chief Executive Officer, Stuart Lowther (the "Plaintiff"). The Plaintiff resigned as Chief Executive Officer and a director of the Company in September 2023.

The Claim alleges, among other things, wrongful dismissal, breach of contract and other employment-related matters, and seeks monetary damages and other relief.

The Company believes the claims are without merit and intends to defend the action vigorously. The Company further believes it has substantial legal and equitable claims and remedies available against the Plaintiff arising from the matters described in the Claim, which it is currently evaluating with legal counsel.

The allegations contained in the Claim have not been proven in court. At this preliminary stage, the Company is not in a position to comment further on the specific allegations. The Company will respond through the court process and will provide further updates if and when required in accordance with applicable securities laws.

The Company does not expect the commencement of the Claim to affect its day-to-day operations or the ongoing execution of its business strategy.

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 Stanley Cup Champion Jack Eichel (Vegas Golden Knights) and 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 the Claim or its impact on the Company's operations. 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.