Holding(s) in Company

SCHEDULE 10

              NOTIFICATION OF MAJOR INTERESTS IN SHARES
1)    Name of company
Impax Environmental Markets plc

2) Name of shareholder having a major interest
Universities Superannuation Scheme Limited

3) Please state whether notification indicates that it is in respect
of
holding of the shareholder named in 2 above or in respect of a
non-beneficial interest or in the case of an individual holder if it
is a
holding of that person's spouse or children under the age of 18
The shareholder named in 2 above

4) Name of the registered holder(s) and, if more than one holder, the
number of shares held by each of them
Chase Nominees Limited (USS)

5) Number of shares/amount of stock acquired
14,597,931

6) Percentage of issued class
7.40%

7) Number of shares/amount of stock disposed
-

8) Percentage of issued class
-

9) Class of security
Ordinary shares of 10p

10) Date of transaction
-

11) Date company informed
11 October 2006

12) Total holding following this notification
19,768,931

13) Total percentage holding of issued class following this
notification
10.02%

14) Any additional information
Holding following conversion of C shares

15) Name of contact and telephone number for queries
A. Lee  0207-490-4355
16) Name of authorised company official responsible for
making this notification
A. Lee

Date of notification 12 October 2006

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