Among these companies,
we have extensive experience in all aspects of heavy civil construction,
including dams, hydro power plants, tunnels, roads, buildings, and special
projects. The variety of projects we’ve constructed is from sewage system in
crowded central of the Karaj metropolitan in Iran to one of the world’s
greatest underground hydro power plants in Rogun Project, Tajikistan. At Tunnel Sadd Ariana Co. we enjoy challenges.
offices in Tajikistan, Georgia, Armenia, China & South Korea are active and
make our presence in overseas markets updated.