Tu Van Va Dich Vu Ky Thuat Difi LTD Address: 10th Floor, Viet A Building, No 9 Duy Tan, Dich Vong Hau Ward, Cau Giay District, Ha Noi City Enterprise code: 0109873348 Phone: 0878738868 Representative: Luong Thi Thuy Duong Dich Vong Hau Ward, Cau Giay District, Ha Noi CityFounding date: 29 - 12 - 2021