Truong Mam Non Khanh Khe Address: Khon Khien Hamlet, Khanh Khe Commune, Van Quan District, Lang Son Province Enterprise code: 4900264436 Phone: 0205832421 Representative: Tran Thi Phong Khanh Khe Commune, Van Quan District, Lang Son ProvinceFounding date: 25 - 12 - 2007