Tu Van Hoang An Joint Stock Company Address: No 17, Civil Group 2, Quan Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0101512445 Phone: 0248336979 Representative: Nguyen Anh Tuan Adress: No 149 Ngoc Khanh, Ngoc Khanh Ward, Ba Dinh District, Ha Noi City Quan Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 29 - 7 - 2004