Dau Tu Ha Van Joint Stock Company Address: Chan Hung 1 Hamlet, Nam Bung Commune, Van Chan District, Yen Bai Province Enterprise code: 5200661415 Phone: 02163879513 Representative: Doan Van An Adress: No 27, Han Thuyen, Pham Dinh Ho Ward, Hai Ba Trung District, Ha Noi City Nam Bung Commune, Van Chan District, Yen Bai ProvinceFounding date: 11 - 8 - 2011