Merger Update

National Grid Group PLC
10 October 2002

                 Lattice Group plc and National Grid Group plc

            Scheme of Arrangement in relation to the proposed merger
                of Lattice Group plc and National Grid Group plc


Lattice Group plc ('Lattice') and National Grid Group plc ('National Grid')
announce that a hearing of the petition to sanction the scheme of arrangement
between Lattice and its shareholders pursuant to which the merger with National
Grid is to be implemented has been convened for Thursday 17 October 2002 from
10.30 a.m. before the Applications Judge at the Royal Courts of Justice, Strand,
London, WC2A 2LL.

Enquiries:
Lattice                                                     National Grid

Investor Relations:                                         Investor Relations:
Gary Rawlinson 44 (0) 20 7389 3218                          Marcy Reed 44 (0) 20 7312 5779
                                                            Terry McCormick 44 (0) 20 7312 5785
                                                            Louise Clamp 44 (0) 20 7312 5783

Media Relations:
Gillian Home 44 (0) 20 7389 3212
Jim Willison 44 (0) 20 7389 3213                            Media Relations:
                                                            Clive Hawkins 44 (0) 20 7312 5757


The Maitland Consultancy
Angus Maitland 44 (0) 20 7379 5151                          Citigate Dewe Rogerson
                                                            Anthony Carlisle 44(0) 20 7638 9571




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