Ung Dung Cong Nghe Tan Tien Joint Stock Company Address: No 21, Yen Ninh Street, Truc Bach Ward, Ba Dinh District, Ha Noi City Enterprise code: 0101768327 Phone: 0247151269 Representative: Mai Anh Tai Adress: Dong Tam Hamlet, Dong Cuong Commune, Van Yen District, Yen Bai Province Truc Bach Ward, Ba Dinh District, Ha Noi CityFounding date: 10 - 9 - 2005