FECON affirmed its strong mark when it became the first Vietnamese unit to directly operate tunneling robots at Metro Line 1 (Ben Thanh - Suoi Tien) under the guidance of Japanese experts. Following that success, at Metro Line 3 Hanoi, FECON is not only the contractor performing tunneling with TBM robots but also participating in the construction of most of the complex technical items including underground station construction, diaphragm walls, foundation, piling works, anti-settlement and waterproofing foundation treatment, etc.