Shareholder Open Day and Notice of Trading Update

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 Tuesday 25 July 2023 from 11am to 2pm. The Company will also provide an update on trading for the year ended 30 June 2023 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 tristel@walbrookpr.com or call 020 7933 8780 to reserve an entry ticket.

For those that are unable to make it in person, a recording of the presentation will be made available on the Company's website, shortly after the event here: https://tristelgroup.com/invest/webinars-presentations/. Questions can be pre-submitted in advanced of the meeting via tristel@walbrookpr.com and answers, where appropriate, will be addressed in the presentation.

For further information please contact: