Construction

1. Provides specialized infrastructure construction / sub / railway and subway Sofia. 

2. Performs construction of underground utilities including construction of power TT cable connections, optical cable systems, plumbing, security and others. 

3. Performs engineering services in the field of building new systems for rail transport safety, including design, manufacturing equipment, construction and commissioning of automatic crossing devices, interlocking systems and others. 

4. Performs engineering services in the overhaul of existing systems for rail transport safety, including design, manufacturing equipment, construction and commissioning. 

5. Perform a new high-rise buildings including finishing and landscape construction 

6. Own ground for the production of concrete products - foundations, cabins equipment shafts and others.