Be Tong Alpha Joint Stock Company Address: No 2, Civil Group 61, Yen Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0104270441 Phone: 02422454811 Representative: Dao Van Dung Adress: 590 Truong Dinh, Tan Mai Ward, Hoang Mai District, Ha Noi City Yen Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 27 - 11 - 2009