Tu Van Dau Tu Xay Dung Khanh An Joint Stock Company Address: No 152, Thach Ban Street, Civil Group 3, Thach Ban Ward, Long Bien District, Ha Noi City Enterprise code: 0104581302 Phone: 02436526652 Representative: Nguyen Van Huyen Adress: Tu Khoat Hamlet, Ngu Hiep Commune, Thanh Tri District, Ha Noi City Thach Ban Ward, Long Bien District, Ha Noi CityFounding date: 6 - 4 - 2010