Dau Tu Cong Nghe Hoang Lien Joint Stock Company Address: No 5, Lane 101, Hao Nam Street, O Cho Dua Ward, Dong Da District, Ha Noi City Enterprise code: 0106066145 Phone: 02436252562 Representative: Nguyen Thi Thanh Mai Adress: No 30 Tap The A6, Thanh Cong Ward, Ba Dinh District, Ha Noi City O Cho Dua Ward, Dong Da District, Ha Noi CityFounding date: 24 - 12 - 2012