Trieu Gia Lang Son Address: Khon Coong Hamlet, Tu Xuyen Commune, Van Quan District, Lang Son Province Enterprise code: 4900789673 Phone: 0247671598 Representative: Trieu Quoc Tuong Adress: Khon Coong Hamlet, Tu Xuyen Commune, Van Quan District, Lang Son Province Tu Xuyen Commune, Van Quan District, Lang Son ProvinceFounding date: 27 - 1 - 2016