Truong Trung Hoc Co So Duc Ninh Address: Tan Lap Hamlet, Duc Ninh Commune, Ham Yen District, Tuyen Quang Province Enterprise code: 5000305811 Phone: 02073427505 Duc Ninh Commune, Ham Yen District, Tuyen Quang ProvinceFounding date: 6 - 1 - 2009