Date of Annual Results Announcement

Impax Asset Management Group PLC ('Impax'), the specialist environmental investment manager, today announces that it intends to release its preliminary results for the year to 30th September, 2009 on Wednesday 9th December.

Impax is also pleased to announce that the resolution to change its name from Impax Group plc to Impax Asset Management Group plc has been approved by Companies House and will take immediate effect.  The new name reflects the company's asset management focus and brings its brand in line with its day-to-day business activities - that of an asset manager dedicated to the environmental sector. Impax has grown to become one of the world's top-performing investment managers in this arena, managing a range of pooled vehicles, segregated accounts and listed funds on behalf of institutional and private investors.


Impax Asset Management Group PLC
Keith Falconer, Chairman
Ian Simm, Founder and Chief Executive                
020 7434 1122
Noble & Company Limited
John Riddell, Director        
020 7763 2200
Penrose Financial 
Shona Prendergast           
020 7786 4884 
Clare Milton                    
020 7786 4874