Holding(s) in Company

Pennon Group PLC
16 August 2006


PENNON GROUP PLC


FOR IMMEDIATE RELEASE


HOLDING IN COMPANY


Pennon Group Plc has received notification (by fax dated 15 August 2006) that
Zurich Financial Services and its Group hold an interest in 21,621,539 Ordinary
Shares of 40.7p each in the Company, representing 6.09% of the issued share
capital.


16 August 2006


www.pennon-group.co.uk


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