14 March 2023

Tristel plc

("Tristel" or the "Company")

Exercise of Share Options and Total Voting Rights

Tristel plc (AIM: TSTL), the manufacturer of infection prevention products, announces that it has issued and allotted a total of 4,000 new ordinary shares of 1 penny each in the capital of the Company ("Ordinary Shares") following the exercise of options by employees of the Group.

Application has been made to the London Stock Exchange for the 4,000 new Ordinary Shares to be admitted to trading on AIM ("Admission") and it is expected that Admission will become effective and trading will commence at 8.00 a.m. on 20 March 2023.

 Total Voting Rights

After Admission, the total number of Ordinary Shares in issue will be 47,247,493 and the total number of voting rights will therefore be 47,247,493. This 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 share capital of the Company under the FCA's Disclosure Guidance and Transparency Rules.

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