27 January 2026

MicroSalt Plc

("MicroSalt" or the "Company")

Signed Joint Development Agreement

MicroSalt (AIM: SALT), a leading manufacturer of full-flavour natural salt with approximately 50% less sodium, is pleased to announce that it has entered into a formal Joint Development Agreement ("JDA") with Customer 3, one of the world's largest food, soft drink and snack manufacturers (the "Partner").

This agreement follows the Company's announcement on 14 November 2025 regarding the signing of a non-binding term sheet between the parties.

The JDA provides a framework for a four-year collaboration between MicroSalt and the Partner focused on the joint development of new food solutions that significantly reduce sodium content, while maintaining a salty and savoury taste experiences for consumers. The agreement reflects the continued expansion in both the depth and breadth of the relationship between the two parties and will continue to build on existing commercial engagements.

Unless otherwise expressly agreed within the scope of individual projects, no compensation will be exchanged between the parties, and each party will bear its own costs incurred in connection with the collaboration.

The signing of the JDA represents an important milestone for MicroSalt, providing increased visibility over future development activity and reinforcing the Company's position as a strategic partner to global food manufacturers seeking practical, scalable sodium-reduction solutions.

Rick Guiney, Chief Executive Officer of MicroSalt, commented:

"This further agreement with Customer 3 is a validation of MicroSalt's unique offering to the global food and beverage industry. Collaborating with one of the world's largest food, soft drink and snack manufacturers underlines the strength and versatility of our technology that addresses one of the food industry's most pressing challenges. We look forward to working evermore closely with Customer 3 to deliver healthier food products to consumers worldwide in the coming years."

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About MicroSalt

MicroSalt® is disrupting the global salt market with its patented, full-flavour, low-sodium salt designed for both food manufacturers and consumers. Using proprietary micron-sized particles, MicroSalt® delivers the same salty taste as traditional salt with approximately 50% less sodium, offering a scalable solution to one of the world's most pressing health challenges. Year to date through 2025, MicroSalt® has contributed to more than 634M servings made healthier.

Excess sodium consumption is a leading contributor to cardiovascular disease, the world's number one cause of death. The World Health Organisation has targeted a 30% reduction in global sodium intake by 2025, a shift projected to save seven million lives by 2030. The economic case is equally compelling: in the UK alone, cardiovascular disease costs £19 billion annually, and reducing average daily salt intake by just one gram could save over 4,000 lives and £288 million each year. 

Operational since 2018, MicroSalt® has established a defensible IP portfolio, holding a granted US patent and 14 pending applications worldwide. These protections create significant barriers to entry in a market expected to grow exponentially as regulation and consumer demand accelerate.

MicroSalt® is ideally positioned for scale and market leadership, with clear pathways into food manufacturing, consumer channels, and ultimately the broader £10+ billion global salt market. MicroSalt® is more than a healthier alternative-it is a disruptive, category-defining solution poised to deliver significant commercial and societal impact.

For more information, please visit www.microsaltinc.co or follow on X @microSaltPLC.