As part of extension projects on the metro in Algiers, Algeria, Colas Rail has been awarded two contracts totaling 168 million euros (total share for Colas Rail: 86 million euros), in partnership with the Algerian public works company Kou.G.C. 

The first 117-million euro contract (Colas Rail: 59 million euros), called "Extension C", aims to extend the existing subway line 3.6 kilometers to the south and includes three new stations. The second contract, worth 51 million euros (Colas Rail: 27 million euros), called "Extension A", involves the lengthening of the Algiers line 1.7 km to the north of the capital city and includes two new stations in the heart of the old town, notably at the iconic Place des Martyrs.

 Colas Rail will perform the railway work, power supply, ventilation and smoke extraction, low voltage work, and the ticketing system, as well as project coordination and system integration. 

After the successful completion of the first contract won on the Algiers metro in 2012, these two new contracts bear witness to the strong bonds that link Colas Rail with its local partner Kou.G.C. Colas Rail has clearly become the reference and preference of the client EMA (Algiers Metro Company) for comprehensive integrated rail systems.