In Khoa Hoc Ky Thuat Joint Stock Company Address: 101a Nguyen Khuyen, Van Mieu Ward, Dong Da District, Ha Noi City Enterprise code: 0100111754 Phone: 0248237505 Representative: Nguyen Thanh Son Adress: Civil Group 4, Tho Cluster, Nhan Chinh Ward, Thanh Xuan District, Ha Noi City Van Mieu Ward, Dong Da District, Ha Noi CityFounding date: 22 - 5 - 1998