Tu Van Ky Thuat Do Thi Viet Nam Joint Stock Company Address: No 43, Lane 101, Tram Street, Long Bien Ward, Long Bien District, Ha Noi City Enterprise code: 0108025049 Phone: 0935455494 Representative: Pham Xuan Dung Long Bien Ward, Long Bien District, Ha Noi CityFounding date: 16 - 10 - 2017