Cong Nghe Vien Thong Topphonex LTD Address: No 217, Nguyen An Ninh Street, Binh Minh 2 Quarter, Di An Ward, Di An City, Binh Duong Province Enterprise code: 3703449411 Phone: 0973731733 Representative: Nguyen Thi Yen Nhu Di An Ward, Di An City, Ho Chi Minh CityFounding date: 12 - 3 - 2026