Listing Particulars

National Grid Transco PLC
06 June 2003


FORMAL NOTICE FOR SPECIALIST SECURITIES

PUBLICATION DATE:            6th June 2003

Application has been made to the UK Listing Authority for the following securities to be admitted to the Official List.

DETAILS OF ISSUE:            EUR4,000,000,000 Euro Medium Term Note Programme

ISSUER:                      National Grid Transco plc
                             1-3 Strand
                             London WC2N 5EH

INCORPORATED IN:             England

AUTHORISED ADVISOR:          HSBC Bank plc

Particulars relating to the issue may be obtained during usual business hours for fourteen days from the date of this
formal notice from:

National Grid Transco plc                National Grid Company plc               Bank One, NA
1-3 Strand                               1-3 Strand                              27 Leadenhall Street
London WC2N 5EH                          London WC2N 5EH                         London EC3A 1AA

In addition, a copy of the Particulars is available for inspection at the Document Viewing Facility at the Financial
Services Authority, 25 The North Colonnade, London E14 5HS.


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