Hoa Chat Vat Tu Khoa Hoc Ky Thuat LTD Address: No 198 Hoang Hoa Tham, Thuy Khue Ward, Tay Ho District, Ha Noi City Enterprise code: 0101501718 Phone: 0248471758 Representative: Nguyen Thi Thuy Hong Adress: No 77 Hang Gai, Hang Gai Ward, Hoan Kiem District, Ha Noi City Thuy Khue Ward, Tay Ho District, Ha Noi CityFounding date: 25 - 6 - 2004