Holding(s) in Company

Pennon Group PLC
18 March 2005


PENNON GROUP PLC


FOR IMMEDIATE RELEASE


HOLDING IN COMPANY


Pennon Group Plc has received notification (by fax dated 17 March 2005) that
Morgan Stanley Securities Limited on 15 March 2005 acquired an interest in
Ordinary shares of £1.11p each in Pennon Group Plc which resulted in a total
holding of 4,114,750 shares in the Company, representing approximately 3.22% of
the issued share capital of the Company.




18 March 2005


www.pennon-group.co.uk





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