Truong Mam Non , Xa Huu Le , Huyen Van Quan, Tinh Lang Son Address: Ruoi Hamlet, Huu Le, Van Quan District, Lang Son Province Enterprise code: 4900416618 Phone: 02053513794 Adress: Van Quan District, Lang Son Province Huu Le Commune, Van Quan District, Lang Son ProvinceFounding date: 29 - 10 - 2009