Notice of Preliminary Results

Tristel plc (AIM: TSTL), the manufacturer of infection prevention products, announces that its preliminary results for the year ended 30 June 2025 will be announced on Monday 13 October 2025.

Analyst briefing

A briefing open to analysts will take place in London on Monday 13 October 2025 at 9.30am. To register and for more details please contact Walbrook PR on tristel@walbrookpr.com

Investor presentation

Matt Sassone, CEO, and Anna Wasyl, CFO, will present the Company's results in two separate events open to all investors. The same presentation will be given at both events which are being held at different times to offer convenient options for those wishing to attend.

Two presentations will take place on Monday 13 October 2025 at the following times, the first will be held online via the Investor Meet Company platform and the second will be held in-person in the City of London, full details below:

Investor Meet Company online presentation

Tristel management will provide a live online presentation relating to the preliminary results via Investor Meet Company at 11.30am. The presentation is open to all existing and potential shareholders. Questions can be submitted pre-event via your Investor Meet Company dashboard up until 9am the day before the meeting or at any time during the live presentation.

Investors can sign up to Investor Meet Company for free and add to meet Tristel plc via:

In-person investor presentation

Tristel management will provide an in-person presentation relating to the Company's preliminary results at 4.30pm, which is open to all existing and potential shareholders. The Company welcomes investors from 4.15pm for a 4.30pm start and will be followed by refreshments.

If you would like to attend, please contact Walbrook PR for more details on 020 7933 8780 or email tristel@walbrookpr.com.

The results presentation will be made available on the Company's website on the day of results - https://investors.tristel.com/