Change of Registered Office

11 December 2017

Impax Asset Management Group plc

Change of Registered Office

Impax Asset Management Group plc (the "Company") announces that its registered and business office has changed to the following address with effect from today:

7th floor

30 Panton Street

London

SW1Y 4AJ

The Company's telephone number has also changed to +44 (0)20 3912 3000.

- ENDS -

LEI number: 213800AJDNW4S2B7E680

Enquiries:

Anne Gilding Tel: +44 (0)20 3912 3000 (switchboard)

Head of Brand & Communications Tel: +44 (0)20 3912 3126 (direct)

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

7th floor, 30 Panton Street

London SW1Y 4AJ Email: a.gilding@impaxam.com

www.impaxam.com

Ian Simm Tel: +44 (0)20 3912 3000 (switchboard)

Chief Executive

Impax Asset Management Group plc

7th floor, 30 Panton Street

London SW1Y 4AJ

www.impaxam.com

Guy Wiehahn / Rishi Shah Tel: +44 (0)20 7418 8893Nominated Adviser and BrokerPeel Hunt LLP