STI s. r. o, slovak tunneling and mining company. www. sti. sk.
Hlavná 74
053 42 Krompachy
Dobroskeho tunnel Project started in 2002 and completed in 2002. Project type: Geological survey gallery. Location: Czech Republic. Description: Geological survey gallery for future road tunnel on czech highway. Technology: NATM (New Austria Tunneling Method) sequential method. Lansimetro Project started in 2011 and completed in 2013. Project type: Metro.