The trains were ordered in 2009 in a deal worth €155m and deliveries began in 2011. Following the completion of the certification process, Attiko Metro has handed the fleet over to metro operator Stasy.
The 106m-long six-car trains will accommodate up to 1032 passengers (based on a maximum occupancy of 5 passengers/m2) and have a maximum speed of 80km/h.
A 5.5km extension of Line 2 from Aghios Dimitrios to Elliniko was inaugurated last July, while the 1.4km extension of Line 3 from Egaleo to Aghia Marina opened last December. A further 7.6km extension of Line 3 from Aghia Marina to Dimotiko Theatro in Piraeus is under construction and is due to open in 2017.