Holding(s) in Company

National Grid Transco PLC
06 July 2005

6 July 2005

National Grid Transco plc (NGT)

Notification of Interest in NGT Ordinary Shares,
Pursuant to Section 198 of The Companies Act 1985

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NGT today received notification from The Capital Group Companies, Inc., that its
notifiable interest was 6.97% (215,458,765 shares) at 4 July 2005.


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