Tristel Regulatory News (TSTL)

TRISTEL plc

("Tristel" or the "Company")

Director Appointment

Tristel plc (AIM: TSTL), a leading manufacturer of infection prevention and contamination control products, announces the appointment of Isabel Napper to the Board as a non-executive director.

Isabel has more than 30 years' experience advising clients in the technology and healthcare/life science sectors, where she has experience leading on business development and managing regulatory issues, governance, risk and strategic change. Isabel was previously a partner at the law firm Mills & Reeve where she acted as legal adviser and company secretary to a number of boards. She is also a non-executive director of AIM quoted SDI Group plc and is chair of its Remuneration Committee.

It is expected that Isabel will join Tristel's Remuneration committee.

Commenting on the appointment, Bruno Holthof, Chairman of Tristel, said: "I am delighted to welcome Isabel to the Board at such an exciting time for the Company. Isabel has extensive board level experience and comes from a legal background with experience within our sector. We look forward to her contribution to the Board and we very much look forward to working with her."

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Regulatory disclosure - The following information is disclosed in accordance with Rule 17 and paragraph (g) of Schedule 2 of the AIM Rules for Companies.

Isabel Josephine Sutherland Napper (formerly Pokorny, Robinson), 62, holds nil ordinary shares in the Company and nil options. Isabel Napper's current and previous directorships/partnerships are as follows:

Current Directorships/Partnerships:

SDI Group plc

Health Enterprise East Limited

Accloud plc

Former Directorships/Partnerships held in last 5 years:

Mills & Reeve LLP

Eastern Academic Health Science Network

Arthur Rank Hospice Charity

Emmaus Cambridge

Save for the disclosures above, there are no further disclosures to be made in accordance with Rule 17 and Schedule 2(g) of the AIM Rules.