Exercise of Options and Total Voting Rights

27 February 2026

Aminex plc

 ("Aminex" or "the Company")

Exercise of Options and Total Voting Rights

Aminex announces that it has issued a total of 1,500,000 ordinary shares of €0.001 each following the exercise of options by a former employee under the Aminex PLC Share Option Scheme (the "Option Shares"). The exercise will provide £21,000 of additional funding to the Company, which will be used for general working capital purposes.

Applications will be made to the Financial Conduct Authority ("FCA") and the London Stock Exchange for the Option Shares to be admitted to the FCA's Official List (Equity Shares (transition)) and to trading on the main market of the London Stock Exchange ("Admission"). It is expected that Admission will become effective and that dealings will commence in the Option Shares at 8.00 a.m. (London time) on 6 March 2026. Following Admission, the enlarged share capital and the total voting rights of the Company will be 4,470,001,044. The Company does not hold any shares in treasury.

The above figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company under the FCA's Disclosure and Transparency Rules.