Truong TH Va THCS Dong Son- Hoanh Bo Address: Tan Oc I Hamlet, Dong Son Commune, Hoanh Bo District, Quang Ninh Province Enterprise code: 5700988271 Phone: 02033692918 Adress: Hoanh Bo District, Quang Ninh Province Dong Son Commune, Hoanh Bo District, Quang Ninh ProvinceFounding date: 15 - 12 - 2008