Phong Giao Duc Va Dao Tao Huyen Thong Nong Address: Thong Nong Town, Thong Nong District, Cao Bang Province Enterprise code: 4800175214 Phone: 02063875240 Thong Nong Town, Thong Nong District, Cao Bang ProvinceFounding date: 24 - 12 - 2008