Dau Tu Va Dich Vu O To The Son Joint Stock Company Address: No 448, Lac Long Quan Street, Nhat Tan Ward, Tay Ho District, Ha Noi City Enterprise code: 0108577963 Phone: 02422405654 Representative: Vu The Son Adress: No 571, Nguyen Hoang Ton Street, Xuan Dinh Ward, Bac Tu Liem District, Ha Noi City Nhat Tan Ward, Tay Ho District, Ha Noi CityFounding date: 8 - 1 - 2019