Tu Van Va Xay Dung Dan Dung Cong Nghiep Ha Noi Joint Stock Company Address: Nha A4, Civil Group 54, Yen Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0101841369 Phone: 02437844497 Representative: Nguyen Ba Hoang Adress: No 3, N10 Tap The Thong Tin, Giang Vo Ward, Ba Dinh District, Ha Noi City Yen Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 19 - 12 - 2005