H&p Telecommunication Service Trading Company Limited
520/79/16 Quốc lộ 13, Khu phố 6, Phường Hiệp Bình Phước, Thu Duc District
Tns Telecom Services Trading Company Limited
36 Nguyễn Thái Sơn, Phường 3, Go Vap District
Royal European Group Joint Stock Company
46/67/6 Đường số 18, Khu phố 1, Phường Bình Hưng Hòa, Binh Tan District