Tu Van Thiet Ke Va Dau Tu Xay Dung Havinco Joint Stock Company Address: No 6, Trung Hoa Street, Trung Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0102399217 Phone: 02437830599 Representative: Nguyen Tien Manh Adress: No 23, 36/31 Dao Tan Alley, Cong Vi Ward, Ba Dinh District, Ha Noi City Trung Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 29 - 10 - 2007