Burlington, Ontario--(Newsfile Corp. - May 19, 2026) - Promino Nutritional Sciences, Inc. (CSE: MUSL) (OTCID: MUSLF) (FSE: 93X) ("Promino" or the "Company") announces that Major League Baseball All-Star José Bautista has renewed his partnership with the Company for an additional two-year term.

Under the renewed agreement, Mr. Bautista will continue to represent both Promino™ NSF Certified for Sport® and Rejuvenate Muscle Health™ while expanding his involvement with the Company's broader business development and brand growth initiatives.

The renewal follows a year of significant operational and commercial progress for Promino, including recently reported fiscal 2025 results, continued retail expansion, growing e-commerce activity and the advancement of the Company's muscle health platform across North America.

Promino™ NSF Certified for Sport® has also continued to expand its presence within the youth and collegiate athlete marketplace through its ongoing relationship with Fastbreak AI, which has supported athlete activations and live event opportunities across the United States. The brand recently announced a nine-athlete NIL partnership with Division 1 Virginia Military Institute ("VMI") and continues as the Official Protein Drink of Las Vegas Lights FC.

Mr. Bautista, one of the most respected players in Toronto Blue Jays history, was inducted into the club's Level of Excellence in 2023. He also participated in Opening Day 2026 ceremonies alongside other former Blue Jays players.

Beyond baseball, Mr. Bautista is the owner of Las Vegas Lights FC and is involved in business ventures including Bella Aldea Coffee, a premium small-batch Dominican Republic coffee brand available on Amazon.

José Bautista commented, "Over the past year, I've watched Promino continue to strengthen the business and make meaningful progress across multiple areas of the platform. The team has stayed focused through a challenging period and has continued building momentum with its products, partnerships, and overall strategy. I believe there is a significant long-term opportunity in muscle health, and I'm excited to continue working with the Company during this next phase."

Vito Sanzone, Chief Executive Officer of Promino, added, "Having José renew and expand his relationship with the Company is an important endorsement of the progress our team has made over the past year. We've worked hard to stabilize and advance the business, strengthen our commercial execution, and position the platform for continued growth. José brings tremendous credibility, business insight, and a strong network, and we are excited to continue building together."

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The renewed agreement replaces the prior arrangement between the parties and has a term ending May 2028. Pursuant to the agreement, Promino has agreed to issue an aggregate of 1,500,000 common shares of the Company to Mr. Bautista during the initial term of the engagement, with 500,000 shares issued on signing and an additional 250,000 shares issuable quarterly thereafter.

Promino continues to focus on advancing its amino acid-based muscle health platform through retail, e-commerce, sports performance, and healthy aging channels across North America.

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™, is a clinically researched proprietary amino acid formula designed to rebuild, restore, and rejuvenate muscle tissue.

The Company also produces Promino™ - NSF Certified for Sport®, trusted by elite athletes. Promino's ambassadors include Stanley Cup Champion Jack Eichel (Vegas Golden Knights) and MLB legend José Bautista.

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

Forward-Looking Statements and Financial Outlook

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 success of the brand ambassador engagement. 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.

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