Quan Ly Van Hanh Va Cung Cap Dich Vu Nha O Thai Son Joint Stock Company Address: No 17, Alley 26/12, Cong Trang Lane, Trung Phung Ward, Dong Da District, Ha Noi City Enterprise code: 0107996785 Phone: 0933668252 Representative: Ha Tien Duc Adress: No 20, 189/61 Hoang Hoa Tham Alley, Lieu Giai Ward, Ba Dinh District, Ha Noi City Trung Phung Ward, Dong Da District, Ha Noi CityFounding date: 19 - 9 - 2017