Business
Admission to Trading
Pennon Group PLC has announced the admission of 3,599 ordinary shares of 61.05 pence each to trading on the London Stock Exchange under existing block listing admissions for its Save As You Earn scheme. These newly admitted shares are fully fungible with existing ordinary shares, bringing the total number of securities admitted to trading to 471,984,868. This notification covers the period from March 1, 2026, to April 30, 2026. Disclaimer*

About this update from Pennon Group Plc
In conformity with PRM 1.6.4R, Pennon Group plc notifies the market that ordinary shares of 61.05 pence each ('Ordinary Shares') have been admitted to trading as set out in the table below. The Ordinary Shares have been admitted to trading under existing block listing admissions of Ordinary Shares in connection with the Pennon Group plc Save As You Earn (SAYE) scheme. 1a Issuer name PENNON GROUP PLC 1b Issuer LEI 213800V1CCTS41GWH423 2 Regulated market on which the securities have been admitted to trading LONDON STOCK EXCHANGE (XLON) 3 Name, type and ISIN of the securities ORDINARY SHARES OF 61.05p EACH ISIN: GB00BNNTLN49 4 Number of further securities admitted to trading covered by this notification 3,599 5 Total number of securities admitted to trading following admission 471,984,868 6 Fungibility FULLY FUNGIBLE WITH EXISTING ORDINARY SHARES 7 Date range covered by the notification 1 MARCH 2026 - 30 APRIL 2026 8 Prospectus information N/A