Ky Thuat Tau Thuy - Xay Dung Va Thuong Mai Hoang Anh Joint Stock Company Address: Zoom 507 Khach San Van Nam, 26, Lang Street, Nga Tu So Ward, Nga Tu So Ward, Dong Da District, Ha Noi City Enterprise code: 0101717851 Phone: 0245639830 Representative: Nguyen Van Hai Adress: No 8a2, Hong Mai Street, Bach Mai Ward, Hai Ba Trung District, Ha Noi City Nga Tu So Ward, Dong Da District, Ha Noi CityFounding date: 15 - 7 - 2005