Khoa Hoc Tai Nguyen Viet Nam Joint Stock Company Address: No B34, 34 Duong Ngo Thi Nham Street, Ha Cau Ward, Ha Dong District, Ha Noi City Enterprise code: 0107751714 Phone: 0962975498 Representative: Nguyen Thi Hao Ha Cau Ward, Ha Dong District, Ha Noi CityFounding date: 8 - 3 - 2017