Total Voting Rights

Pennon Group PLC 31 January 2008 PENNON GROUP PLC FOR IMMEDIATE RELEASE VOTING RIGHTS AND CAPITAL In conformity with Disclosure and Transparency Rule 5.6.1(1), Pennon Group Plc hereby notifies the market that at 31 January 2008, the issued share capital of the Company was 348,696,532 ordinary shares of nominal value 40.7p each with voting rights. Therefore, currently the total number of voting rights in Pennon Group Plc is 348,696,532. This figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, Pennon Group Plc under the FSA's Disclosure and Transparency Rules. In addition, in conformity with Disclosure and Transparency Rule 5.6.1(2) Pennon Group Plc hereby notifies the market that at 31 January 2008, the total number of voting rights attaching to shares of the Company which are held by it in treasury is 6,467,742. 31 January 2008 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)
UK 100

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