Thuong Mai Va Dich Vu DNS Viet Nam Joint Stock Company Address: No 20, Alley 4/5, O Cach Street, Duc Giang Ward, Long Bien District, Ha Noi City Enterprise code: 0108290551 Phone: 02438770210 Representative: Nguyen Ngoc Dung Duc Giang Ward, Long Bien District, Ha Noi CityFounding date: 24 - 5 - 2018