Rule 2.10 Announcement

BAE SYSTEMS PLC
10 April 2006

                                BAE Systems plc

                             Rule 2.10 announcement
                          Relevant securities in issue

In accordance with Rule 2.10 of the City Code on Takeovers and Mergers, BAE
Systems plc confirms that it has in issue 3,220,347,323 Ordinary Shares of 2.5
pence each under ISIN code GB0002634946 and 266,079,032 7.75 pence net
Cumulative Convertible Redeemable Preference Shares of 25 pence each under ISIN
code GB0001271690.

10 April 2006


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