Impax expands management team with new appointment

Charlie Ridge joins as Chief Operating Officer. Impax Group plc ("Impax"), the specialist environmental investment company has announced the appointment of Charlie Ridge as Chief Operating Officer. He will be responsible for finance, operations, compliance and administration.

Charlie has over 20 years of technical and management experience with blue chip investment banks. Before joining Impax he was a Managing Director within the Finance Division of Deutsche Bank, most recently serving as UK Asset and Wealth Management CFO, and previously holding various financial and market risk related roles for the Global Markets Division. Before working at Deutsche, Charlie had roles at SG Warburg and Ernst & Young as an Auditor.

Charlie, aged 44, is a qualified Chartered Accountant and holds a degree in Engineering Science from Durham University.

Ian Simm, CEO of Impax said: "I am very pleased to welcome Charlie to the team. Impax's assets under management have increased significantly and we look forward to further growth with a strengthened management team. Charlie's wealth of operational management experience and experience of structured products on the sell side will be invaluable and helps to reinforce Impax's position as one of the leading investment companies in the environmental sector."

Charlie Ridge said: "I am delighted to join Impax. I look forward to working with such a highly experienced team and contributing to the strong performance and track record of the Group."

About Impax Group plc:

Impax Group plc ("Impax"), which is quoted on the Alternative Investment Market of the London Stock Exchange, was founded in 1994 as a specialist finance house focusing on the markets for cleaner or more efficient delivery of basic services of energy, water and waste.

These markets are expanding rapidly, as business and political leaders encourage the development of cleaner products and services in response to the increasing pressures placed on the environment. Impax's dedicated team of professionals, with many years of experience in the financial and environmental sectors, is ideally placed to understand and take advantage of the investment opportunities arising from the fast growing environmental markets. Impax's assets under management and advisory have increased from £983 million at the end of September 2007 to £1.184 billion on 12 September 2008, across a range of listed and private equity funds.

Key facts:

Impax has an extensive track record of identifying compelling investment opportunities in the environmental sector.

Impax manages the only "pure-play" environmental investment trust in the FTSE All Share Index.

Impax has a team of 15 investment professionals focusing solely on the environmental sector.

Impax has been selected to partner FTSE in the development and management of its Environmental Technology Index series.

Impax is a signatory to the UN Principles of Responsible Investment (UNPRI).

For further information please visit: www.impax.co.uk