Subway line II, section (from the subway station MS II-11, km 10+452) to the subway station MS II-12 with a line point after it (km 11+752) and a part of a transport ramp. The total length of the subway section is 1300.3 m. The tunnel section of 781 m of length from the subway station MS II-11 to the inter-station Ventilation System II 11-12 is to be constructed using NATM (New Austrian Tunnel Method). The remaining part of the route is 

• Assignor: „METROPOLITAN“ EAD • Contractor: Consortium „UNDRGROUND CONSTRUCTION PARTNERS 2014"– Consortium members: -„STANILOV” LTD – Leading Partner with 67 % participation.   -„VIA CONSTRUCT GROUP” LTD – Partner with 30 % participation. -„SVEKO ENERGOPROEKT” AD – Partner with 3 % participation.