Holding(s) in Company

Holding in company

Impax Environmental Markets plc ("the Company") has been notified by
The Royal Bank of Scotland Group plc that they and the Royal Bank of
Scotland plc have an interest in 4,595,842 shares in the Company.
This represents a notfiable interest of 3.51% of the Company.

The shares are registered under the following holder names:

Nortrust Nominees
Ltd                                                7,500
Mellon Nominees UK Ltd NIFF 3000032                 4,588,342

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