Phat Trien Thanh Thieu Nien Viet Nam Joint Stock Company Address: No 54B, 34 Luong Khanh Thien Lane, Tuong Mai Ward, Hoang Mai District, Ha Noi City Enterprise code: 0108074254 Phone: 0966686987 Representative: Do Van De Tuong Mai Ward, Hoang Mai District, Ha Noi CityFounding date: 27 - 11 - 2017