Net Asset Value(s)

Impax Environmental Markets plc announces that as at the close of
business on 30 September 2008 its net asset value ("NAV") per
ordinary share ("Share") was as follows:


Undiluted NAV per Share (including current financial year     112.21p
revenue items)

Undiluted NAV per Share (excluding current financial year     111.49p
revenue items)

Diluted NAV per Share (including current financial year       111.26p
revenue items)

Diluted NAV per Share (excluding current financial year       110.57p
revenue items)



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.

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