Tu Van Thiet Ke Giao Thong Van Tai 4 Joint Stock Company Address: No 02, Le Ninh Street, Quan Bau Ward, Vinh City, Nghe An Province Enterprise code: 2900325357 Phone: 02383853374 Representative: Nguyen Huu Nhan Adress: Khoi An Vinh, Hung Phuc Ward, Vinh City, Nghe An Province Quan Bau Ward, Vinh City, Nghe An ProvinceFounding date: 30 - 9 - 1998