Dau Tu & Phat Trien Cong Nghe Hoang Hai LTD Address: No 91 Yen Lac, Vinh Tuy Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0108188011 Phone: 01656488795; 0356488795 Representative: Phan Thi Luong Vinh Tuy Ward, Hai Ba Trung District, Ha Noi CityFounding date: 16 - 3 - 2018