Additional Listing

Pennon Group PLC 19 October 2005 PENNON GROUP PLC (THE 'COMPANY') FOR IMMEDIATE RELEASE ADDITIONAL LISTING Application has been made to the UK Listing Authority for the admission of 1,989,956 ordinary shares of 111 pence each in the Company to the Official list and to the London Stock Exchange for these securities to be admitted to trading. It is anticipated that these shares will be admitted to trading on 21 October 2005. The application is being made in respect of shares that may fall to be issued pursuant to the: Scrip dividend alternative in lieu of cash: 1,927,513 ordinary shares for the final dividend paid on 5 October 2005 in respect of the year ended 31 March 2005; and Restricted Share Plan 2005 Award: up to 62,443 ordinary shares of 111 pence each. 19 October 2005 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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Pennon Group (PNN)
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