National Storage Mechanism | Additional information

Impax Environmental Markets PLC
LEI: 213800RAR6ZDJLZDND86

Transaction in Own Shares

In accordance with the Financial Conduct Authority's ('FCA') Disclosure Guidance and Transparency Rules, the Company announces that it has today purchased 129,053 of its own ordinary shares of 10p each at a price of 387.99p per share. These shares will be held in Treasury.

Following the transaction, the Company's share capital comprises:

Total issued share capital: 305,623,539
Shares held in Treasury (with no voting rights): 106,856,405
Total voting rights: 198,767,134

The total voting rights figure of 198,767,134 may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company under the FCA's Disclosure Guidance and Transparency Rules.

For further information, please contact:

Juniper Partners Limited
Company Secretary
email:[email protected]
Telephone: 0131 378 0500

16 September 2025

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