PORVAIR PLC

Board/Management Information • Mar 6, 2017

The Directors Porvair plc 7 Regis Place Bergen Way King's Lynn Norfolk PE30 2JN

6 March 2017

Dear Sirs,

Statement of Reasons connected with ceasing to hold office as Auditors

In accordance with Section 519 of the Companies Act 2006 (the "Act"), we set out below the reasons connected with PricewaterhouseCoopers LLP, registered auditor number Co01004062, ceasing to hold office as auditors of Porvair plc, registered no: 01661935 (the "Company") effective from 6 March 2017.

The reason we are ceasing to hold office is that the Company undertook a competitive tender process for the position of statutory auditor and we mutually agreed with the Audit Committee not to participate due to the time of our tenure.

There are no reasons for and no other matters connected with our ceasing to hold office as auditors of the Company that we consider need to be brought to the attention of the Company's members or creditors.

Yours faithfully,

mher

PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP, Abacus House, Castle Park, Cambridge, CB3 0AN $T: +44$ (0) 1223 460 055, F: +44 (0) 1223 552 336, www.pwc.co.uk