Truong Mam Non Xa Chien Thang Address: Hang Vi Hamlet, Chien Thang Commune, Chi Lang District, Lang Son Province Enterprise code: 4900360845 Phone: 02053501705 Adress: Chi Lang District, Lang Son Province Chien Thang Commune, Chi Lang District, Lang Son ProvinceFounding date: 5 - 8 - 2009