Dong Ha Address: Da Hoi Hamlet, Chau Khe Ward, Tu Son Town, Bac Ninh Province Enterprise code: 2300321840 Phone: 0248825465 Representative: Tran Van Dong Adress: Da Hoi Hamlet, Chau Khe Ward, Tu Son Town, Bac Ninh Province Chau Khe Ward, Tu Son City, Bac Ninh ProvinceFounding date: 16 - 1 - 2008