Vat Lieu Xay Dung Nam Vang Joint Stock Company Address: Trong La Hamlet, Tan Lien Commune, Cao Loc District, Lang Son Province Enterprise code: 4900239408 Phone: 0978978988 Representative: Le Ngoc Son Adress: Giap Hamlet, Tan Ninh Commune, Trieu Son District, Thanh Hoa Province Tan Lien Commune, Cao Loc District, Lang Son ProvinceFounding date: 2 - 3 - 2006