RNS Number:3927Q
Marconi Corporation PLC
01 October 2003

           
                                                                Press enquiries:

                   Joe Kelly tel: +44 207 306 1771; email: joe.kelly@marconi.com

               David Beck, tel: + 44 207 306 1490; email; david.beck@marconi.com
           
                                                             Investor enquiries:

                                    Heather Green tel: + 44 207 306 1735; email:

                                                       heather.green@marconi.com
           

                               MARCONI WINS MAJOR                               
                        SERVICE CONTRACT IN MIDDLE EAST                         
              New three-year contract to support military network               


LONDON - October 1, 2003 - Marconi Corporation plc (London: MONI) today
announces that GPT SPM Ltd., a wholly owned subsidiary of Marconi Corporation
plc, has signed a three-year managed services contract valued at #46M to provide
operation and maintenance support for military networks in the Middle East.

The agreement will become effective in February 2004.


ENDS/...


Notes to Editors

About Marconi Corporation plc

Marconi Corporation plc is a global telecommunications equipment, services and
solutions company. The company's core business is the provision of innovative
and reliable optical networks, broadband routing and switching and broadband
access technologies and services. The company's customer base includes many of
the world's largest telecommunications operators.

The company is listed on the London Stock Exchange under the symbol MONI.

Additional information about Marconi Corporation can be found at
www.marconi.com.

Copyright (c) 2003 Marconi Corporation plc. All rights reserved. All brands or
product names are trademarks of their respective holders.

This press release contains forward-looking statements with respect to products,
partners, customers, future growth and other matters. Please refer to the Form
20-F report and Form 6-K reports filed by Marconi Corporation plc with the
United States Securities and Exchange Commission for a discussion of risks that
could cause actual results to differ materially from such statements.


                      This information is provided by RNS
            The company news service from the London Stock Exchange

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