18 October 2017

Impax Asset Management Group plc (the "Company")

Result of General Meeting

Following the announcement made by the Company on 18 September 2017 regarding the agreement to acquire Pax World Management LLC, the Company confirms that at the Company's General Meeting held today, the resolution was duly passed. This was the only resolution proposed to shareholders at the General Meeting and was in relation to approval of the proposed borrowing by the Company in connection with the financing of the acquisition.

- ENDS -

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

Chief Executive

Impax Asset Management Group plc

Norfolk House, 31 St James's Square,                                          

London, SW1Y 4JR                                                                            

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)

Norfolk House, 31 St James's Square,                                          

London, SW1Y 4JR                                                                             Email: a.gilding@impaxam.com

www.impaxam.com

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