Holding(s) in Company

Impax Environmental Markets plc has been notified that as of 18 May
2006 The Alliance Trust Plc and The Second Alliance Trust Plc had the
following interests in the company;

The Alliance Trust Plc 2,949,725 ordinary shares

The Second Alliance Trust Plc 983,241 ordinary shares

This represents an aggregate of 3,932,966 shares and a notifiable
interest of 3.08% in the company.

The Alliance Trust Plc and The Second Alliance Trust Plc have common
interests by virtue of Sections 204 and 205 of the Companies Act
1985.




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