Dai Truyen Thanh - Truyen Hinh Address: TK Hoang Van Thu, Bac Son Town, Bac Son District, Lang Son Province Enterprise code: 4900358652 Phone: 02053837126 Adress: Bac Son District, Lang Son Province Bac Son Town, Bac Son District, Lang Son ProvinceFounding date: 1 - 8 - 2009