Tristel plc

("Tristel", the "Company" or the "Group")

Exercise of Share Options and Total Voting Rights

Tristel plc (AIM: TSTL), the manufacturer of infection prevention products utilising proprietary chlorine dioxide technology announces that it has issued and allotted a total of 10,000 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 10,000 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 23 February 2022.

After Admission, the total number of Ordinary Shares in issue will be 47,195,043 and the total number of voting rights will therefore be 47,195,043. 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. 

This announcement contains inside information for the purposes of Article 7 of the Market Abuse Regulation (EU) 596/2014 as it forms part of UK domestic law by virtue of the European Union (Withdrawal) Act 2018 ("MAR"), and is disclosed in accordance with the company's obligations under Article 17 of MAR.