Chi Nhanh Cong Ty Co Phan Dau Tu Noi Bai Tai Lang Son Address: No 36, Khoi, Le Hong Phong Street, Bac Son Town, Bac Son District, Lang Son Province Enterprise code: 0105542810-001 Phone: 02053837725 Representative: Doan Thanh Hung Adress: Khoi 13, Phu Lo Commune, Soc Son District, Ha Noi City Bac Son Town, Bac Son District, Lang Son ProvinceFounding date: 17 - 1 - 2013