Co So Cai Nghien Ma Tuy Tinh Lang Son Address: KM 10, 1a Cu Highway, Tan Thanh Commune, Cao Loc District, Lang Son Province Enterprise code: 4900821292 Phone: 02145386194 Representative: Hoang Van Tha Adress: Tong Huong Hamlet, Hoang Dong Commune, Lang Son City, Lang Son Province Tan Thanh Commune, Cao Loc District, Lang Son ProvinceFounding date: 7 - 3 - 2018