Cong Nghe Quan Sat Vinh Nam (Ntnn) LTD Address: 100a Bui Thi Xuan, Ben Thanh Ward, District 1, Ho Chi Minh City Enterprise code: 0313942418 Phone: 0839256060 Representative: Nguyen Thi Hoang Dong Adress: 100a Bui Thi Xuan, Ben Thanh Ward, District 1, Ho Chi Minh City Ben Thanh Ward, District 1, Ho Chi Minh CityFounding date: 1 - 8 - 2016