Transaction in Own Shares

Impax Environmental Markets plc announces that it has purchased
250,619 of its own ordinary shares in the market at an average price
of 77.47p per share.  The highest price paid per share was 78.00p and
the lowest price paid per share was 75.59p.  These shares will be
held in Treasury.

Following this share re-purchase, the Company's share capital will be
305,405,220 ordinary shares.  The Company will be holding 716,505 of
these shares in Treasury.  Therefore, the total number of ordinary
shares with voting rights in the Company will be 304,688,715.


Enquiries


Anthony Lee                                        020 7566 5495
Company Secretary
Cavendish Administration Limited

Dominic Waters                                  020 7523 8473
Collins Stewart

27 March 2009

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