Impax Asset Management Regulatory News (IPX)

Impax Asset Management Group plc - Q1 AUM update

London, 11 January 2016 - 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 three major Listed Equity strategies with AUM above US$1 billon, Leaders, Specialists and Water, all extended their three year outperformance of the MSCI All Countries World Index during the quarter.

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

Impax Asset Management is a leading investment firm, managing approximately £3.1bn* primarily for institutional clients through both listed and private equity strategies.

The Company's investments are based on the strong conviction that population dynamics, resource scarcity, inadequate infrastructure and environmental constraints will profoundly shape global markets, creating investment risks and opportunities. Impax expects that these trends, reflecting the transition towards a more sustainable global economy, will drive earnings growth for well-positioned companies. Impax's proprietary investment framework identifies and calibrates the rising risks and expanding opportunities from this transition, and guides the search for investments that will deliver long term outperformance.

*As of 31 December 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.