Roads are the Group’s core business, generating 9.0 billion euros in revenue in 2016, i.e., 82% of total Group revenue. This activity includes two main lines of business: road works and production of construction materials.

01 Roads around the world

  • In mainland France, the Group operates via 7 regional subsidiaries covering the entire country.
  • In Europe, the Group operates in:
    • Northern Europe, including in particular Belgium, Switzerland, Denmark, the United Kingdom and Ireland
    • Central Europe, including in particular Slovakia, Hungary, the Czech Republic, Poland, Croatia and Romania
  • In North America, the Group operates in:
    • 25 states in the United States, where its activities include a significant industrial component (aggregates, asphalt mix and ready-mix concrete) and a substantial bitumen storage business
    • 8 provinces in Canada: Quebec, Alberta, British Columbia, Yukon, the Northwest Territories, Saskatchewan, Ontario, Nunavut
  • In the Rest of the world, the Group operates in:
    • all the French overseas departments: the French Caribbean, French Guiana, Mayotte and Reunion Island
    • Africa and the Indian Ocean and in the Middle East, including in particular Morocco, western and southern Africa, Madagascar, Mauritius, the Comoros, in the United Arab Emirates, Oman and Qatar
    • Asia / Australia / Pacific Rim: the Group’s main activity in this region is the production, storage, transformation, distribution and sale of petroleum products, delivered through a network consisting of a bitumen production site in Kemaman, Malaysia along with 28 emulsion plants, 21 bitumen storage depots and 10 bitumen tankers. In Australia, business has expanded to include Road construction. Colas also operates in New Caledonia.

02 Road works

  • Repaving roads on Highway A1 between Bardonnex and Bernex in Switzerland
  • Building the Tamarin road on Reunion Island
  • Renovating the runway at the Koné Airport in New Caledonia
  • Construction of the Buriram automobile racing circuit in Thailand
  • Repaving roads for the Tour de France cycling race in the French Alps
  • Repaving the I 520 Bobby Jones Highway in Georgia, USA

Road works

Road works (68% of total Group revenue)

  • As a leader in road construction and maintenance with 60,000 road projects a year, Colas builds and maintains the following types of infrastructure:
    • highways [ex: upgrading and widening of Highway A63 in southwest France along a 105-km section between Salles and Saint-Geours-de Maremne (France); construction and renovation of sections of Highway 63 in Alberta, Canada; construction of M6-M60 Motorway in Hungary]
    • national and local roads [ex: widening sections of I57 in Illinois, I71 in Ohio (United States); construction of a causeway for the New Coastal road in Reunion]
    • airport runways and aprons [ex: upgrading runway 2 at Roissy CDG airport (France) ; extending the main runway at Birmingham Airport (United Kingdom)]
    • ports, industrial sites, and logistics and distribution platforms [ex: redesigning a pier at the Port of Toamasina (Madagascar)]
    • urban roadways and networks (including pedestrian areas and public squares), reserved-lane public transport systems (for buses, trams and subways) [ex: construction of L2 bypass in Marseille; redesigning and upgrading of a pedestrian area near the Grand-Place in Brussels (Belgium); construction of tramways in Reims, France and Rabat, Morocco]

    • recreational facilities: bike paths, motor racing circuits, athletic fields [ex: refurbishing the Hunaudières straight at the Le Mans 24-hour circuit (France)]

    • environmental projects: retention ponds, landscaped areas, wind farms [ex: refurbishment of the surfacing at a reservoir for a hydroelectric company in Pennsylvania (United States)]

  • Activities at the Road subsidiaries also encompasses:

    • small-scale civil engineering and drainage projects often linked to roads, as well as more complex civil engineering structures forming part of comprehensive road and highway projects. [ex: construction of a number of engineering structures on the Tamarind Road in Reunion Island]
    • In some geographical areas, the Group’s road subsidiaries are sometimes involved in building projects encompassing the following:
      • traditional new building and renovation activities in the Paris region (France) as well as on islands in the Indian Ocean and Pacific Ocean where these activities are an essential complement to the Group’s road activities [ex: construction of a 30-storey office building in Antananarivo (Madagascar)]
      • demolition/deconstruction of old buildings in France, often linked to the Group’s materials recycling activities [ex: demolition of a housing project in Asnières-sur-Seine (France) using hydraulic jacking]

03 Production of construction materials

Doville Quarry in Normandy, France
  • Quarry in Chonburi, Thailand
  • Asphalt plant on a runway repaving project at the Gatwick Airport near London, England
  • Nordhouse gravel pit in eastern France
  • SCPR quarry site on the port, Reunion Island

Production of construction materials


Production of construction materials (14% of total Group revenue)

Upstream from the construction and maintenance activity, Colas also does significant business in the production and recycling of construction materials (aggregates, emulsions and binders, asphalt mix, ready-mix concrete and bitumen) across all its sites around the world. Some of these materials are used by the Group while others are sold to third parties.

Colas operates via a dense international network consisting of:

  • Roughly 700 quarries and gravel pits
  • More than 130 emulsion and binder plants
  • Nearly 550 asphalt plants
  • More than 200 ready-mix concrete plants
  • 1 bitumen production plant in Malaysia

Total volumes produced by Colas in 2016 were as follows:

  • 100 million tons of aggregates
  • 1.8 million tons of emulsions and binders
  • 41 million tons of asphalt mix
  • 2.43 million cubic meters of ready-mix concrete
  • 0.85 million tons of bitumen

The Group’s global authorized reserves of aggregates are estimated at 2.6 billion tons.

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