Truong THCS Xa Cao Son Huyen Da Bac Address: Xon Na Chieu, Cao Son Commune, Da Bac District, Hoa Binh Province Enterprise code: 5400319304 Phone: 02183827165 Cao Son Commune, Da Bac District, Hoa Binh ProvinceFounding date: 7 - 7 - 2009