Vien Thong Song An LTD Address: B-404, Lot R16, Hung Vuong Quarter (Khu A), Nguyen Van Linh Street, Tan Phong Ward, District 7, Ho Chi Minh City Enterprise code: 0314742813 Phone: 0373200151 Representative: Ton That Bao Son Tan Phong Ward, District 7, Ho Chi Minh CityFounding date: 17 - 11 - 2017