National Grid PLC — M&A Activity 2007

Aug 24, 2007

6-K 1 merger-6k.htm

SECURITIES AND EXCHANGE COMMISSION

Washington D.C. 20549

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FORM 6-K

REPORT OF FOREIGN ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 OF

THE SECURITIES EXCHANGE ACT OF 1934

Date: 24 August 2007

NATIONAL GRID plc

(Registrant’s Name)

1-3 Strand

London

WC2N 5EH

(Registrant’s Address)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F þ Form 40-F o

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3- 2(b) under the Securities Exchange Act of 1934.

Yes o No þ

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b):

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorised.

NATIONAL GRID plc
By:	/s/ David C Forward
	David C Forward Assistant Secretary

Date: 24 August 2007

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ANNEX 1 - SUMMARY

FORM 6-K

SECURITIES AND EXCHANGE COMMISSION

Washington D.C. 20549

Report of Foreign Issuer

Pursuant to Rule 13a – 16 or 15d – 16 of

The Securities Exchange Act of 1934

Announcement issued to the London Stock Exchange on 24 August 2007

National Grid plc

1-3 Strand, London, WC2N 5EH,

United Kingdom

Announcements:

• ‘National Grid plc – Completion of the Acquisition of KeySpan’

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24 August 2007

National Grid plc

COMPLETION OF THE ACQUISITION OF KEYSPAN

National Grid is pleased to announce that it has completed the acquisition of KeySpan.

Contacts

National Grid:

Investors

David Rees +44 (0)20 7004 3170 +44 (0)7901 511322 (m)

Richard Smith +44 (0)20 7004 3172 +44 (0)7747 006321 (m)

James Waite +44 (0)20 7004 3171 +44 (0)7977 440902 (m)

Media

Clive Hawkins +44 (0)20 7004 3147 +44 (0)7836 357173 (m)

Brunswick:

Paul Scott +44 (0)20 7396 5333 +44 (0)7974 982333(m)

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