Viet Sin Address: 15a, Ha Hoi Hamlet, Hoan Kiem District, Ha Noi City Enterprise code: 0100255957 Phone: 0248262843 Representative: Quach Ngoc Duc Adress: No 16, Cua Nam Street, Hoan Kiem District, Ha Noi City Hoan Kiem District, Ha Noi CityFounding date: 23 - 6 - 1998