Offer Document Posted

NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, IN WHOLE OR IN PART, IN OR INTO THE UNITED STATES OF AMERICA, CANADA, AUSTRALIA OR JAPAN OR ANY OTHER JURISDICTION WHERE IT IS UNLAWFUL TO DO SO FOR IMMEDIATE RELEASE 26 April 2007 Recommended Cash Offer by PKF (UK) LLP on behalf of Serco Group plc to acquire the entire issued and to be issued ordinary share capital of Cornwell Management Consultants plc Posting of Offer Document Serco Group plc ("Serco") announces that the formal offer document containing the recommended cash offer by PKF (UK) LLP on behalf of Serco to acquire the entire issued and to be issued ordinary share capital of Cornwell Management Consultants plc ("Cornwell") ("the Offer"), which was announced on 24 April 2007, was posted to Cornwell shareholders yesterday. The Offer is not being made, directly or indirectly, in or into, or by use of the mails, or by any means or instrumentality (including, without limitation, facsimile transmission, internet, email, telex or telephone) of interstate or foreign commerce, or of any facility of a national securities exchange, of the United States of America, Canada, Australia or Japan or any other jurisdiction where it is unlawful to do so ("the Excluded Territories") and cannot be accepted by any such use, means, instrumentality or facility or from within any of the Excluded Territories. PKF (UK) LLP, which is authorised and regulated in the United Kingdom by the Financial Services Authority, is acting exclusively for Serco and for no-one else in connection with the Offer and will not be responsible to anyone other than Serco for providing the protections afforded to customers of PKF (UK) LLP, nor for giving advice in relation to the Offer or any matter referred to in the Offer Document or herein. This announcement does not constitute an offer to sell or an invitation to purchase any securities or the solicitation of an offer to buy any securities.

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Serco Group (SRP)
UK 100

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