Tu Van Cong Nghe Joint Stock Company Address: No 37 40 Hao Nam Civil Group, O Cho Dua Ward, O Cho Dua Ward, Dong Da District, Ha Noi City Enterprise code: 0101816919 Phone: 0245111579 Representative: Nguyen Minh Ngoc Adress: Civil Group 4, Tan Mai Ward, Hoang Mai District, Ha Noi City O Cho Dua Ward, Dong Da District, Ha Noi CityFounding date: 15 - 11 - 2005