Khoang San HMT Joint Stock Company Address: Dong Bong Hamlet, Vien Son Commune, Van Yen District, Yen Bai Province Enterprise code: 5200806406 Phone: 02163710266 Representative: Mai Xuan Thin Adress: Civil Group 6, Hop Minh Commune, Yen Bai City, Yen Bai Province Vien Son Commune, Van Yen District, Yen Bai ProvinceFounding date: 24 - 1 - 2014