Net Asset Value(s)

Impax Environmental Markets plc announces that as at the close of business on 05 May 2006 its net asset value (NAV) was £150.929 million, representing an undiluted NAV per ordinary share of 118.29p. The diluted NAV per ordinary share (assuming full conversion of all outstanding warrants) was 114.87p. The investments in the Company's portfolios have been valued at bid prices in the above calculations. ---END OF MESSAGE---
UK 100

Latest directors dealings