Holding(s) in Company

Impax Environmental Markets PLC
29 June 2004


                                  SCHEDULE 10

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES

Name of company
Impax Environmental Markets plc

2) Name of shareholder having a major interest
Asset Value Investors Ltd

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
Non beneficial interest as investment manager

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

Chase Nominees - 3,859,318 / Nortrust Nominees 1,561,942
BoNY Nominees - 108,509 / State Street Nominees 20,231

5) Number of shares/amount of stock acquired
300,000

6) Percentage of issued class
0.6%

7) Number of shares/amount of stock disposed
nil

8) Percentage of issued class
nil

9) Class of security
Ordinary shares of 10p

10) Date of transaction
18 June 2004

11) Date company informed
29 June 2004

12) Total holding following this notification
5,550,000

13) Total percentage holding of issued class following this notification
11.1%

14) Any additional information
The beneficial holders of the above holding are;

British Empire Securities - 3,661,860
Yale University - 1,561,942
Rockefeller University - 197,458
AVI Value Fund LLC - 60,693
CF AVI Global Fund - 47,816
Carnegie Corporation - 20,231

15) Name of contact and telephone number for queries
Anthony Lee 0207-490-4355

16) Name of authorised company official responsible for
making this notification
Anthony Lee

Date of notification 29 June 2004



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