Tristel Regulatory News (TSTL)

Tristel plc

("Tristel" or "the Company")

Timing of EPA approval

Tristel plc (AIM: TSTL), the manufacturer of infection prevention, contamination control and hygiene products, announces a change to the expected approval date from the United States Environmental Protection Agency (EPA) for its foam based chlorine dioxide product DUO.

A meeting with the EPA in October 2016 and subsequent communications with the agency guided the scope and content of the Company's Duo submission which was made on 30 June 2017. The EPA has now informed the Company that it has changed its approach and additional information has been requested. This additional data has largely been compiled and submitted. As a result, the EPA approval is now expected in May 2018, rather than late 2017 as originally anticipated. Approval will be followed by the state by state registration process and the Company's revenue expectations are not affected by this slight delay.

Paul Swinney, CEO, said: "Whilst we are disappointed that the EPA's change of approach will require us to restart the submission timetable and incur a five-month delay to the timetable that we originally anticipated, our expectation for first revenues from North America in financial year 2018-19 remains unchanged."

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