Ngon Ngu Va Nghe Thuat Helios Joint Stock Company Address: No 230 Khuong Dinh, Ha Dinh Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0108018193 Phone: 0948922992 Representative: Vu Thi Linh Ha Dinh Ward, Thanh Xuan District, Ha Noi CityFounding date: 10 - 10 - 2017