Tender Offer Completion

For immediate release

Legal Entity Identifier: 213800RAR6ZDJLZDND86

19 May 2026

Impax Environmental Markets plc (the "Company")

Tender Offer Completion

Further to the announcement on 15 May 2026 the Company announces that it has acquired 148,202,139 Tender Exit Shares pursuant to the Exit Tender Offer. All Tender Exit Shares repurchased by the Company will be cancelled.

Following the repurchase there will be 157,421,400 Shares in issue (of which 117,004,397 Shares are held in treasury). The Shares in issue less the total number of shares in treasury are 40,417,003. This figure 40,417,003 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.

Defined terms used in this announcement shall, unless the context requires otherwise, have the meanings ascribed to them in the circular to Shareholders published by the Company on 17 March 2026.

Enquiries:

Impax Environmental Markets PLC

Glen Suarez, Chairman, via Winterflood

+44 (0)20 3100 0000

Winterflood Securities Limited

Corporate Broker

Joe Winkley / Neil Morgan / Rose Ramsden

+44 (0)20 3100 0000

Camarco (media enquiries)Billy Clegg / Jennifer [email protected] 

+44(0)203 757 4980

MUFG Corporate Markets (Receiving Agent) +44 (0)371 664 0321.