On the 30th of April 2013 in Belgrade, Serbia, Adval JSC signed a contract for the construction of two two-way tunnels LOT 3 and LOT 4 of highway E 75 /part of the Pan-European- Corridor X/.
Contractor of the projects is Koridori Serbia, the value of the projects exceeds 50 million Euro.
The term for the construction for both projects is 900 days. The tunnels will be executed at New Austrian Tunneling Method /NATM/.
After the solid positioning of the Bulgarian tunneling company in Germany, Spain, Greece, Finland, this is a successful breakthrough on a new market.
LOT 3 is positioned in section “Grdelica-Carichina Dolina”.
Tunnel “Predejane” – two tunnel pipes with length of 870 m. and 1075 m. and a cross section of 105 m2.
LOT 4 is positioned in section “Carichina Dolina – Vladichi Han”.
Tunnel “Manajle” – two tunnel pipes with length of 1808 m. and 1800 m. and  a cross section of 105 m2.