Net Asset Value(s)

Impax Environmental Markets plc announces that as at the close of
business on 09 October 2008 its net asset value ("NAV") per ordinary
share ("Share") was as follows:


NAV per Share (including current financial year revenue items) 93.26p

NAV per Share (excluding current financial year revenue items) 92.44p



Investments in the Company's portfolio have been valued on a bid
price basis.

No dilution to NAV has been made for the outstanding warrants in
issue as the NAV per Share (excluding current financial year revenue
items) is below the warrant subscription price of 96p per Share.

---END OF MESSAGE---