Nht System Integration Company Limited
K34/02 Trưng Nữ Vương, Phường Bình Hiên, Hai Chau District
Qdt Telecommunications Joint Stock Company
264 Nguyễn Tri Phương, Phường Thạc Gián, Thanh Khe District
Gia Khiem Equipment Security Company Limited
312 Tôn Đức Thắng, Phường Hoà Minh, Lien Chieu District