Dau Tu Va Phat Trien Cong Nghe Tung Ngoc LTD Address: No 42, Lane 35, Cat Linh Street, Cat Linh Ward, Dong Da District, Ha Noi City Enterprise code: 0105740805 Phone: 02438234110 Representative: Pham Thi Nhung Adress: No 11, Vong Duc Street, Hang Bai Ward, Hoan Kiem District, Ha Noi City Cat Linh Ward, Dong Da District, Ha Noi CityFounding date: 19 - 12 - 2011