Construction and supply of materials, large repair list of Lang Son-Cao Bang 110kV transmission line (Cao Bang QLVH)-110kV transmission line 172E16.1 Cao Bang - 172E16.3 Quang Uyen + Quang Uyen-Cao Bang 110kV substation (System) battery system) and MC 331 at Cao Bang station (MC transferred from Thach To station - Ha Nam)
Construction and supply of materials, large repair list of Lang Son-Cao Bang 110kV transmission line (Cao Bang QLVH)-110kV transmission line 172E16.1 Cao Bang - 172E16.3 Quang Uyen + Quang Uyen-Cao Bang 110kV substation (System) battery system) and MC 331 at Cao Bang station (MC transferred from Thach To station - Ha Nam)