Holding(s) in Company

Impax Environmental Markets plc has today received the following
notification of a major interest in its shares.

TR-1(i): NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares
to which voting rights are attached (ii):
Impax Environmental Markets Plc

2. Reason for the notification (please state Yes/No): (    ) n/a see
additional information

An acquisition or disposal of voting rights: (Yes)

An acquisition or disposal of financial instruments which may result
in the acquisition of shares already issued to which voting rights
are attached: (No)

An event changing the breakdown of voting rights: (No)

Other (please specify) : (No)

3. Full name of person(s) subject to the notification obligation
(iii):
Newton Investment Management Ltd

4. Full name of shareholder(s) (if different from 3.) (iv):

5. Date of the transaction (and date on which the threshold is
crossed or  reached if different) (v):
02 April 2008

6. Date on which issuer notified:
03 April 2008

7. Threshold(s) that is/are crossed or reached:
Decrease from 8.00% to 7.96%

8. Notified details:
Sale of 128,835 shares




A: Voting rights attached to shares


Class/type of shares if possible Situation previous to the Triggering
using the ISIN CODE                        transaction (vi)
                                 Number of shares   Number of voting
                                                    Rights (viii)


Ord 10p shares                   24,230,988         8.00%
GB0031232498



Resulting situation after the triggering transaction (vii)


Class/type of       Number of Number of voting rights % of voting
shares if possible  shares    (ix)                    rights
using the ISIN CODE
                    Direct    Direct   Indirect (xi)  Direct Indirect
                              (x)


Ord 10p shares      N/A       N/A      24,102,153     N/A    7.96%
GB0031232498


B: Financial Instruments
Resulting situation after the triggering transaction (xii)


Type of    Expiration  Exercise/Conversion Number of voting    % of
financial  Date (xiii) Period/ Date (xiv)  rights that may be  voting
instrument                                 acquired if the     rights
                                           instrument is
                                           exercised/
                                           converted.
N/A        N/A         N/A                 N/A                 N/A



Total (A+B)

Number of voting rights % of voting rights
24,102,153              7.96%


9. Chain of controlled undertakings through which the voting rights
and/or the financial instruments are effectively held, if applicable
(xv):

Newton Investment Management Limited hold these shares as a
discretionary Investment Manager






Proxy Voting:

10. Name of the proxy holder:
n/a

11. Number of voting rights proxy holder will cease to hold:
n/a

12. Date on which proxy holder will cease to hold voting rights:
n/a

13. Additional information:
N/A

14. Contact name:
Christian Rijs

15. Contact telephone number:
[phone]



The person making this announcement on behalf of Impax Environmental
Markets plc is as follows;

Anthony Lee
Tel: [phone]

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