Total Voting Rights

Pennon Group PLC 31 May 2007 PENNON GROUP PLC FOR IMMEDIATE RELEASE VOTING RIGHTS AND CAPITAL In conformity with Disclosure and Transparency Rule 5.6.1, Pennon Group Plc hereby notifies the market that at 31 May 2007 the issued share capital of the Company is 356,124,274 Ordinary shares of nominal value 40.7p each with voting rights. None of these Ordinary shares is held in Treasury. Therefore, currently the total number of voting rights in Pennon Group Plc is 356,124,274. The above figure (356,124,274) 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. 31 May 2007 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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