Xay Dung Ky Thuat A Au Joint Stock Company Address: No 207, Nha B, Alley 673/61, Ngoc Hoi Street, Van Dien Town, Thanh Tri District, Ha Noi City Enterprise code: 0101510913 Phone: 02436471621 Representative: Ngo Dinh Hung Adress: Tap The Z179, Tu Hiep Commune, Thanh Tri District, Ha Noi City Van Dien Town, Thanh Tri District, Ha Noi CityFounding date: 26 - 7 - 2004