Impax Asset Management Regulatory News (IPX)

Impax Asset Management Group plc - Q1 AUM update

London, 9 January 2018 - Impax Asset Management Group plc ("Impax" or the "Company"), the AIM quoted investment manager, today provides an update of the development of its assets under discretionary and advisory management ("AUM") for the first quarter of its financial year.

On 31 December 2017, the Company's AUM totalled £8.2 billion, representing an increase of 13% over the quarter. This AUM figure does not include the assets managed by Pax World Management LLC ("Pax"), the acquisition of which the Company announced on 18 September 2017 and which remains subject to customary closing conditions.

Ian Simm, Chief Executive, commented:

"I am pleased to report on another outstanding quarter. Investor interest in the transition to a more sustainable economy continues to gather momentum and it is most encouraging to see further strong inflows across our fund range from clients in Europe and North America. Our pipeline remains promising for both our listed and private equity strategies."

The table below sets out further details of the movements in the Company's AUM for the quarter ended 31 December 2017.

Enquiries:

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

Impax Asset Management Group plc

www.impaxam.com

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

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

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

www.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 manages or advises on approximately £8.2 bn1 in both listed and private equity strategies primarily for institutional clients.

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 31 December 2017.

Issued in the UK by Impax Asset Management Group plc, whose shares are quoted on the Alternative Investment Market of the London Stock Exchange. 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.