Board changes

         12 November 2026

Porvair plc

("Porvair" or the "Group" or the "Company")

Board changes

Porvair plc, the specialist filtration, laboratory and environmental technology group, announces the following Board changes:

Dr Ros Rivaz

Dr Ros Rivaz has been appointed as Senior Independent Non-Executive Director of the Company and Chair of the Remuneration Committee with immediate effect. Ros will also join the Audit Committee and Nomination Committee.

Ros brings extensive international leadership experience in executive and non-executive roles across manufacturing and engineering. She is currently Chair of Companies House, Senior Independent Director of Victrex plc, a UK FTSE 250 company, and Lead Independent Director of Aperam S.A, listed in Amsterdam, Brussels, Paris, Madrid and Luxembourg. Ros was previously Chair of Anglian Water Services and the Nuclear Decommissioning Authority, and has held board roles at numerous other companies including Computacenter plc, and Convatec Group plc. She was also previously Chief Operating Officer of Smith & Nephew plc and held senior management positions at ExxonMobil, Diageo, ICI and Tate & Lyle.

Porvair confirms that there are no further matters in relation to Dr Ros Rivaz’s appointment to be disclosed pursuant to the requirements of paragraph 6.4.8 of the Listing Rules of the UK Listing Authority.

Sheena Mackay

Sheena Mackay has stepped down from the Board with immediate effect to take up a role at another company. The Board thanks Sheena for her contribution to Porvair and wishes her well for the future.

Laura Wand

Laura Wand, a Non-Executive Director of the Company, has been appointed as the director responsible for employee engagement with immediate effect.

For further information, please contact: 

Notes to editors

Porvair is a decentralised portfolio of specialist filtration, laboratory and environmental technology businesses, providing technically differentiated, mission-critical solutions with defensible positions across diverse end markets. The Group is organised across three divisions: Aerospace & Industrial; Laboratory; and Metal Melt Quality.