Tu Van Xay Dung Hoang Quan Joint Stock Company Address: No 17 Nha A1 Khu Tap The Dau Khi, Civil Group 29, Quan Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0104036152 Phone: 02438341870 Representative: Hoang Nga Van Adress: No 242 Ngo Thi Nham, Khoi 3, Trung Do Ward, Vinh City, Nghe An Province Quan Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 8 - 7 - 2009