Rule 2.10 Announcement

London Stock Exchange Plc
13 March 2006

LONDON STOCK EXCHANGE PLC

NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN OR INTO THE UNITED STATES,
CANADA, AUSTRALIA OR JAPAN

13 March 2006

RULE 2.10 ANNOUNCEMENT

London Stock Exchange plc announces, in accordance with Rule 2.10 of the City
Code on Takeovers and Mergers, that as at 13 March 2006 its issued share capital
consists of 256,230,499 ordinary shares of 5 5/6pence each.

The International Securities Identification Number is GB00B0167W72


END




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