Further re Niagara Mohawk

National Grid Group PLC 14 January 2002 National Grid Acquisition of Niagara Mohawk National Grid notes the statement on the Niagara Mohawk website referring to the Securities and Exchange Commission approval of the acquisition of Niagara Mohawk. National Grid announces that this statement has been placed on the website in error and that approval from the Securities and Exchange Commission has not yet been obtained. The acquisition remains on track for completion in early 2002. Further details will be released when appropriate. ENQUIRIES: National Grid: Investors Marcy Reed +44 (0)20 7312 5779 +44 (0)7768 490807(m) Terry McCormick +44 (0)20 7312 5785 +44 (0)7768 045139(m) Karen Shih +1 508 389 3176 Media Susan Stevens +44 (0)20 7312 5740 +44 (0)7769 671560(m) Clive Hawkins +44 (0)20 7312 5757 +44 (0)7836 357173(m) Citigate Dewe Rogerson: +44 (0)20 7638 9571 Anthony Carlisle +44 (0)7973 611888(m)
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