Phat Trien Ha Tang Va Khoa Hoc Ky Thuat Ha Noi Joint Stock Company Address: No 16a/1, Ly Nam De Street, Hang Ma Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0101279686 Phone: 02462811209 Representative: Bui Sy Tuan Adress: No 6, 46C Civil Group, Vong Thi Street, Buoi Ward, Tay Ho District, Ha Noi City Hang Ma Ward, Hoan Kiem District, Ha Noi CityFounding date: 13 - 9 - 2002