Impax Environmental Markets plc announces that as at the close of business on 24 April 2015 its unaudited net asset value ("NAV") per ordinary share ("Share") was as follows:

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

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.

The Company's Shares have gone ex-dividend and the dividend of 1.4p per Share has therefore been deducted in the above NAV calculation.

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