Publication of Annual Report

1 December 2017

Impax Asset Management Group plc (the "Company")

Publication of Annual Report and Accounts

Further to the announcement of the Company results on 29 November 2017 for the year ended 30 September 2017, a copy of the annual report and accounts is now available on the Company's website and will be posted to shareholders in due course.

- ENDS -

LEI number: 213800AJDNW4S2B7E680

Enquiries:

Ian Simm                                                                                               Tel: + 44 (0) 20 7434 1122 (switchboard)

Chief Executive

Impax Asset Management Group plc
www.impaxam.com

Anne Gilding                                                                                            Tel: +44 (0) 20 7434 1122 (switchboard)

Head of Brand & Communications                                                    Tel: +44 (0) 20 7432 2602 (direct)

Impax Asset Management Group plc                                                 Tel: +44 (0) 7881 249612 (mobile)

www.impaxam.com                                                                               Email: a.gilding@impaxam.com

Guy Wiehahn                                                                                            Tel: +44 (0) 20 7418 8893
Nominated Adviser
Peel Hunt LLP