Holding(s) in Company

SCHEDULE 10

              NOTIFICATION OF MAJOR INTERESTS IN SHARES

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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 - 6,892,216 / Nortrust Nominees 1,418,615
BoNY Nominees - 456,751 / State Street Nominees 349,924
Pictet - 132,080 / Mellon 297,865
5) Number of shares/amount of stock acquired
n/a

6) Percentage of issued class
n/a

7) Number of shares/amount of stock disposed
500,000

8) Percentage of issued class
0.25%

9) Class of security
Ordinary shares of 10p

10) Date of transaction
9 November 2006
11) Date company informed
15 November 2006

12) Total holding following this notification
9,547,451

13) Total percentage holding of issued class following this
notification
4.77%

14) Any additional information
The beneficial holders of the above holding are;
British Empire Securities - 6,411,666
Yale University - 1,418,615
Rockefeller University - 480,550
AVI Value Fund LLC - 348,957
CF AVI Global Fund - 107,794
Carnegie Corporation - 349,924
Lord North Street - 132,080
Columbia University (N/V) - 297,865
15) Name of contact and telephone number for queries
Anthony Lee  020-7490-4355
16) Name of authorised company official responsible for
making this notification
Anthony Lee

Date of notification 16 November 2006

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