Publication of Annual Report

3 December 2015

Impax Asset Management Group plc (the "Company")

Publication of Annual Report and Accounts

In accordance with Rule 26 of the AIM Rules for Companies a copy of the annual report and accounts for the year ended 30 September 2015 is available on the Company's website. A further notification will be made when the annual report is posted to shareholders.

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Enquiries:

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: [email protected]

www.impaxam.com

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