Impax Asset Management Regulatory News (IPX)

Impax Asset Management Group plc - Q2 AUM update

London, 9 April 2015 - Impax Asset Management Group plc ("Impax" or the "Company"), the AIM quoted investment manager focused on environmental markets and related resource efficiency sectors, today provides its quarterly update of its assets under discretionary and advisory management ("AUM").

The table below sets out the movements in the Company's AUM over the quarter ended 31 March 2015.

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 8893Nominated AdviserPeel Hunt LLP

Notes to Editors - About Impax Asset Management

Founded in 1998, Impax Asset Management is dedicated to investing in resource efficiency and environmental markets created by resource scarcity and the demand for cleaner, more efficient products and services. Impax, which employs 28 investment professionals and a similar number of support staff, has offices in London, Hong Kong, New York and Portland (Oregon). The firm manages ca. £3.1 billion* for investors globally across listed and private markets strategies.

Impax's listed equity funds seek out mis-priced companies that are set to benefit from the long-term trends of changing demographics, urbanisation, rising consumption, and the resultant increases in resource scarcity. Investment is focused on a small number of deeply researched global equity strategies across alternative energy, energy efficiency, water, waste, and food and agriculture related markets.

The private equity infrastructure funds follow an operationally focused, value-add strategy, investing in renewable power generation and related assets throughout Europe.

The Impax Climate Property Fund focuses on developing sustainable and energy efficient commercial property, in the UK.

*As of 31 March 2015

Issued in the UK by Impax Asset Management Group plc, whose shares are quoted on AIM. Impax Asset Management Group plc is registered in England & Wales, number 03262305.

AUM relates to Impax Asset Management Limited and Impax Asset Management (AIFM) Limited. Both companies are authorised and regulated by the Financial Conduct Authority and are wholly owned subsidiaries of Impax Asset Management Group plc.

Please note that the information provided and links from it should not be relied upon for investment purposes. For further information please visit www.impaxam.com.