Net Asset Value(s)

Impax Environmental Markets plc announces that as at the close of business on
28 January 2010 its unaudited net asset value ("NAV") per ordinary share
("Share") was as follows:


 Undiluted NAV per Share (including current financial year revenue      125.31p
 items)


 Undiluted NAV per Share (excluding current financial year revenue      124.53p
 items)


 Diluted NAV per Share (including current financial year revenue items) 123.62p


 Diluted NAV per Share (excluding current financial year revenue items) 122.88p



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

Diluted NAV per Share assumes full conversion of all outstanding warrants.

No adjustment for dilution to the above NAV has been made in respect of any
shares held in treasury as the Company's presently stated policy is that
treasury shares will not be sold at less than NAV.



[HUG#1378838]