Contract

Costain Group PLC
09 May 2007




Costain Group PLC
('Costain' or the 'Group')

Costain Secures King's Cross Station Upgrade Contract


Costain announces that, in joint venture with Laing O'Rourke, it has secured the
£30m King's Cross Eastern Range and Platform Y contract awarded by Network Rail.

The contract is to upgrade the 300m-long 4-storey Grade 1 listed Eastern Range
building adjacent to platform 1 at King's Cross.  In due course, the project
will also create a new platform, Platform Y, at ground level beneath the Eastern
Range building, replacing the existing taxi road.


This is the first step in Network Rail's £400m redevelopment of one of the
country's busiest stations, designed to increase capacity ahead of the 2012
Olympics.


Andrew Wyllie, Chief Executive, said:


'This success at King's Cross follows on from the outstanding achievement at St.
Pancras where we are coming to the end of similar works as part of the Channel
Tunnel Rail Link upgrade contract.'




                                                                      9 May 2007


ENQUIRIES:
Costain Group PLC                                            Tel: [phone]
Andrew Wyllie, Chief Executive
Graham Read, Public Relations

College Hill                                                 Tel: [phone]
Mark Garraway

Matthew Gregorowski




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