Dau Tu Xay Dung Dich Vu Thuong Mai Tan Viet An Joint Stock Company Address: No 19, Alley 189/61, Hoang Hoa Tham Street, Ba Dinh District, Ha Noi City Enterprise code: 0101345258 Phone: 02437225099 Representative: Ta Duc Lang Adress: No 7, Lang Ha Street, Civil Group 5, Ba Dinh District, Ha Noi City Ba Dinh District, Ha Noi CityFounding date: 31 - 3 - 2003