Further re return of cash

Pennon Group PLC 20 February 2006 PENNON GROUP PLC RETURN OF CASH AND LISTING OF NEW ORDINARY SHARES At the Extraordinary General Meeting of Pennon Group Plc held on 15 February 2006 shareholders approved the return of cash, by way of a B Share scheme, of 110p for each existing issued ordinary share held at the close of business on 17 February 2006 and the consolidation of existing ordinary shares on the basis of 10 new ordinary shares for 11 existing ordinary shares. 130,463,481 B Shares were issued today. The B Shares will neither be admitted to the Official List of the UK Financial Services Authority nor to trading on the market for listed securities of the London Stock Exchange. Following the issue of the B Shares, the 130,463,481 existing ordinary shares were consolidated into 118,603,164 new ordinary shares of 122 1/10 pence each. It is expected that the new ordinary shares will be admitted to the Official List of the UK Financial Services Authority and will commence trading on the London Stock Exchange at 8.00 a.m. today. Application has also been made to the UK Financial Services Authority and the London Stock Exchange for a blocklisting totalling 122,238 new ordinary shares of 122 1/10 pence each to trade on the London Stock Exchange and to be admitted to the Official List. The blocklisting is to replace an existing blocklisting authority already in place consisting of ordinary shares to be issued under the Pennon Group All Employee Sharesave Scheme. Further details of the return of cash are contained in the circular to shareholders dated 23 January 2006. For further information please contact: Merrill Lynch International Michael Findlay 0207 996 1000 Chris Snoxall Merrill Lynch International is acting as exclusive financial adviser and corporate broker to Pennon and is acting for no-one else in connection with the Return of Cash to Shareholders and will not be responsible to anyone other than Pennon for providing the protections afforded to customers of Merrill Lynch International nor for providing advice in connection with the Return of Cash to Shareholders or the contents of this document or any other matter referred to herein. 20 February 2006 www.pennon-group.co.uk End transmission This information is provided by RNS The company news service from the London Stock Exchange

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