Tristel plc

("Tristel" or the "Company")

Shareholder Open Day

and Notice of Trading update

Tristel plc (AIM: TSTL), the manufacturer of infection prevention products, announces that it will hold an Open Day for Shareholders at the Company's headquarters in Snailwell, Cambridgeshire on Monday 18 July 2022 from 11am to 2pm. The Company will also provide an update on trading for the year ended 30 June 2022 on that date.

The day will provide an opportunity for shareholders to meet the Senior Management team, take a tour of the facility and familiarise themselves with the Company's products.

Availability is limited so please contact Walbrook PR via [email protected] or call 020 7933 8780 to reserve an entry ticket.

For those that are unable to make it in person, a live webcast will take place. Please contact Walbrook PR via [email protected] or call 020 7933 8780 to request a link. A recording of the presentation will be made available on the Company's website shortly after the event.

For further information please contact: