Sao Mai Tech Joint Stock Company Address: 4th Floor, No 81 Tran Thai Tong, Dich Vong Ward, Cau Giay District, Ha Noi City Enterprise code: 0110959550 Phone: 0989996566 Representative: Nguyen Thi Thuy Duong Dich Vong Ward, Cau Giay District, Ha Noi CityFounding date: 18 - 2 - 2025