Dau Tu Phat Trien Khoa Hoc Viet Nam Joint Stock Company Address: Phuoc Hau 2, Ward 9, Tuy Hoa City, Phu Yen Province Enterprise code: 4401033761 Phone: 0368029679 Representative: Dao Nguyen Sach Ward 9, Tuy Hoa City, Phu Yen ProvinceFounding date: 13 - 4 - 2017