Nguyen Vu Telecommunication Services Trading Production Company Limited
43 Đường Số 9, Khu phố 3, Phường Linh Trung, Thu Duc District
Thien Nghiep Service Trading Company Limited
87 Thống Nhất, Phường Bình Thọ, Thu Duc District
Thien Nghiep Development And Investment Joint Stock Company
92/9 Đường số 2, KP9, Phường Trường Thọ, Thu Duc District