Impax Asset Management Regulatory News (IPX)

Impax Asset Management Group plc - Q4 and full year AUM update

London, 10 October 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 an update of the development of its assets under discretionary and advisory management ("AUM") in the final quarter of its financial year ending 30 September 2016, as well as an overview for the full financial year.

On 30 September 2016 AUM reached a new peak of ca. £4.5 billion, representing increases of 12% over the quarter and 59% since the start of Impax's financial year on 1 October 2015.

Ian Simm, Chief Executive, commented:

"At a time of increasing concern about the rate of future economic growth, investor interest in opportunities arising from the transition to a sustainable global economy continues to build. Impax is regarded world-wide as one of the leading investment managers with deep expertise in this area, and our global distribution network has again provided the foundation for a significant expansion of our AUM and the further development of a strong mandate pipeline to underpin future growth.

With an investment process that has been developed since the late 1990s, all our listed equity strategies have outperformed their global and environmental benchmarks for the full year."

Figure 1 below sets out further details of the movements in the Company's AUM for the quarter ended 30 September 2016. Figure 2 shows the same breakdown for the full year ended 30 September 2016.

Figure 1

Figure 2

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 or Rishi Shah Tel: +44 (0) 20 7418 8900Nominated AdviserPeel Hunt LLP

Notes to Editors - About Impax Asset Management

Impax Asset Management is a leading investment firm, managing or advising on approximately £4.5 bn1 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.

1As of 30 September 2016

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.