Truong Truong Hoc Co So Xa Tran Ninh Address: Tran Ninh Commune, Van Quan District, Lang Son Province Enterprise code: 4900416008 Phone: 02053731602 Adress: Van Quan District, Lang Son Province Tran Ninh Commune, Van Quan District, Lang Son ProvinceFounding date: 28 - 10 - 2009