Tu Van Giam Sat Hi-Tech Viet Nam Joint Stock Company Address: No 75, Civil Group 5, Cluster 39, Xuan La Ward, Tay Ho District, Ha Noi City Enterprise code: 0102190455 Phone: 02437188225 Representative: Cao Thi Minh Ngoc Adress: No 24, Cluster 5, Civil Group 39, Xuan La Ward, Tay Ho District, Ha Noi City Xuan La Ward, Tay Ho District, Ha Noi CityFounding date: 23 - 3 - 2007