Thuong Mai Dich Vu Ky Thuat Trang Yen LTD Address: Yen Tan Hamlet, Ngoc Thuy Commune, Long Bien District, Ha Noi City Enterprise code: 0101199864 Phone: 0248733515 Representative: Vu Thi Yen Adress: Yen Tan Hamlet, Ngoc Thuy Commune, Long Bien District, Ha Noi City Ngoc Thuy Ward, Long Bien District, Ha Noi CityFounding date: 16 - 1 - 2002