Lattice is issuing a circular to its shareholders (the 'Lattice Scheme Circular') containing details of the scheme of arrangement between Lattice and its shareholders pursuant to which the proposed Merger will be implemented as well as notices convening shareholder meetings to be held on 15 July 2002 to approve the Merger . The Lattice Scheme Circular also contains summary listing particulars of National Grid. National Grid is issuing a circular to its shareholders (the 'National Grid Circular') convening an Extraordinary General Meeting to approve the Merger as well as publishing Listing Particulars relating to the admission to the Official List of the UK Listing Authority of up to 1,400,000,000 new ordinary shares to be issued pursuant to the Merger (the 'Listing Particulars').

These documents will [shortly] be available to the public for inspection at the UK Listing Authority's Document Viewing Facility which is situated at: Financial Services Authority, 25 The North Colonnade, Canary Wharf, London E14 5HS (tel. no. +44 20 7676 1000) during normal business hours on any weekday (Saturdays, Sundays and public holidays excepted) until completion of the Merger.

The Lattice Scheme Circular is available on the Lattice website at www.lattice-group.com. Copies of the Lattice Scheme Circular and the Listing Particulars will also be available from Lattice's head office at 130 Jermyn Street, London SW1Y 4UR. The National Grid Circular and the Listing Particulars will be available on the National Grid website at www.nationalgrid.com. Copies will also be available from National Grid's head office at 15 Marylebone Road, London NW1 5JD.