Thuong Mai Dich Vu Smarttech LTD Address: No 12B, 235 Yen Hoa Lane, Yen Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0110383517 Phone: 0981131266 Representative: Hoang Giang Yen Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 12 - 6 - 2023