Cong Nghe Phong Son Joint Stock Company Address: No 11, Lane 190/5, Ha Dinh Street, Ha Dinh Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0109892132 Phone: 02972261983 Representative: Trinh Thi Thuy Tien Ha Dinh Ward, Thanh Xuan District, Ha Noi CityFounding date: 19 - 1 - 2022