Hoang Long Bac Son LTD Address: Hong Minh Hamlet, Chien Thang Commune, Bac Son District, Lang Son Province Enterprise code: 4900891839 Phone: 0977161909 Representative: Duong Manh Hung Adress: Minh Tien Hamlet, Vu Le Commune, Bac Son District, Lang Son Province Chien Thang Commune, Bac Son District, Lang Son ProvinceFounding date: 12 - 1 - 2023