Truong Tieu Hoc Son Duong- Hoanh Bo Address: Cay Thi Hamlet, Son Duong Commune, Hoanh Bo District, Quang Ninh Province Enterprise code: 5700988384 Phone: 02033475378 Adress: Son Duong Commune, Hoanh Bo District, Quang Ninh Province Son Duong Commune, Hoanh Bo District, Quang Ninh ProvinceFounding date: 15 - 12 - 2008