Hop Tac Xa Truyen Thong Address: Doong Giai Hamlet, Cao Chuong Commune, Tra Linh District, Cao Bang Province Enterprise code: 4800809887 Phone: 02063507398 Representative: La Van Canh Adress: Dong Giai, Cao Chuong Commune, Tra Linh District, Cao Bang Province Cao Chuong Commune, Tra Linh District, Cao Bang ProvinceFounding date: 26 - 3 - 2012