Ky Thuat So Tan Son LTD Address: No 533 Nguyen Hoang Ton, Xuan Dinh Ward, Bac Tu Liem District, Ha Noi City Enterprise code: 0107452009 Phone: 02462929153 Representative: Dang Thi Hang Adress: No 533 Nguyen Hoang Ton, Xuan Dinh Ward, Bac Tu Liem District, Ha Noi City Xuan Dinh Ward, Bac Tu Liem District, Ha Noi CityFounding date: 27 - 5 - 2016