Dau Tu, Tu Van, Thiet Ke Va Chuyen Giao Cong Nghe Viet Nam Joint Stock Company Address: No 4, Alley 146, Quan Tho 1 Lane, Ton Duc Thang, O Cho Dua Ward, O Cho Dua Ward, Dong Da District, Ha Noi City Enterprise code: 0101621807 Phone: 0242182683 Representative: Dang Van Sy Adress: Zoom 105 KTT Khi Tuong Lang, Lang Thuong Ward, Dong Da District, Ha Noi City O Cho Dua Ward, Dong Da District, Ha Noi CityFounding date: 24 - 3 - 2005