Than Sinh Hoc Yen Chau Joint Stock Company Address: Cung Ta Lang Hamlet, Tu Nang Commune, Yen Chau District, Son La Province Enterprise code: 5500521433 Phone: 0912727606 Representative: Le Sy Tuan Adress: P1008-No 9B, Ban Dao Linh Dan, Hoang Liet Ward, Hoang Mai District, Ha Noi City Tu Nang Commune, Yen Chau District, Son La ProvinceFounding date: 3 - 6 - 2015