PR Newswire/Les Echos/

May 21, 2010

                                     COLAS

                           (subsidiary of Bouygues)
       French Société Anonyme with share capital of 48,902,683.50 euros
     Head office: 7, place René Clair - 92653 Boulogne-Billancourt, France

           BREAKDOWN OF 1ST QUARTER 2010 REVENUE BY BUSINESS SECTOR
                            (in millions of euros)

COLAS 1st quarter 2010
Business was penalized by unfavorable weather

                                                                     Fiscal
                                                   2010     2009      2009
I. Parent Company

   · 1st quarter                                      97       97       573

II. GROUP

   · 1st quarter -    

- Roads                                            1,285    1,414     8,979
- Civil Engineering, Electricity, Pipes              148      147       783
- Waterproofing                                      134      144       577
- Signaling, Safety, Traffic Management               55       56       331
- Building                                            86       84       393
- Railways                                           120      127       518

TOTAL                                              1,828    1,972    11,581

      The Colas Group's consolidated revenue at the end of March 2010 totaled
1.828 billion euros, compared to 1.972 billion euros at the end of March 2009, 
a 7.3% decrease (-7.7% with comparable exchange rates and scope of business). A
breakdown of these figures shows that France accounted for 1.223 billion euros
(-5.9%) and the international units for 605 million euros (-10.1%).

      Business was put at a sharp disadvantage by very harsh winter weather in
France (especially in January and February), Europe and North America. Climate
conditions were even worse than those recorded during the 1st quarter 2009.

      It is important to underline that 1st quarter activity is not highly
significant, due to the strong seasonal nature of the majority of Colas'
businesses.

     Work-on-hand remains high at the end of March 2010 with 7.0 billion euros,
slightly more than the 6.7 billion euros recorded at the end of March 2009.
                      
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