MTV Duc Dat Lang Son LTD Address: Tham Me Hamlet, Hoang Viet Commune, Van Lang District, Lang Son Province Enterprise code: 4900651019 Phone: 0979889316 Representative: Tran Ngoc Duyen Adress: Tham Me Hamlet, Hoang Viet Commune, Van Lang District, Lang Son Province Hoang Viet Commune, Van Lang District, Lang Son ProvinceFounding date: 21 - 4 - 2011