Third renewable energy infrastructure fund

This announcement constitutes Inside Information within the meaning of Article 7 of the EU Market Abuse Regulation

Impax announces first close of third renewable energy infrastructure fund

London, 30 November 2016 - Impax Asset Management Group plc ("Impax" or "the Company") today announces that its wholly owned subsidiary Impax Asset Management (AIFM) Limited has raised €149 million for its third private equity renewable energy infrastructure private equity fund, Impax New Energy Investors III ("NEFIII" or the "Fund").

As part of this fund raising, Impax has committed to invest €4 million in NEFIII.

The Fund will focus on investment opportunities in independent power companies and projects in the renewable energy sector in Europe.

The Company expects to announce a final close of NEFIII within the next fifteen months.

Enquiries:

Ian Simm Tel: +44 (0) 20 7434 1122 (switchboard)

Chief Executive

Impax Asset Management

Anne Gilding Tel: +44 (0) 20 7434 1122 (switchboard)

Head of Brand & Communications Tel: +44 (0) 20 7432 2602 (direct)

Impax Asset Management Tel: +44 (0) 7881 249612 (mobile)

www.impaxam.com Email: a.gilding@impaxam.com

Guy Wiehahn / Rishi Shah Tel: +44 (0) 20 7418 8893Nominated Adviser and BrokerPeel Hunt LLP

Notes to Editors - About Impax Asset Management

Impax Asset Management is a leading investment firm, managing and advising on approximately £4.7bn* primarily for institutional clients through both listed and private equity strategies.

Impax's listed equity investments are based on a strong conviction that population dynamics, resource scarcity, inadequate infrastructure and environmental constraints will profoundly shape global markets, creating investment risks and opportunities. The Company 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.

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

Impax is a holder of a Queen's Award for Enterprise: Sustainable Development and numerous other industry awards.

*As at 31 October 2016

Issued in the UK by Impax Asset Management (AIFM) Limited authorised and regulated by The Financial Conduct Authority. Registered in England & Wales, number 08819010. Impax Asset Management (AIFM) Limited is a wholly owned subsidiary of Impax Asset Management Group plc. Impax Asset Management Group plc is registered in England & Wales, number 03262305.