Duc Son Joint Stock Company Address: No 177, Civil Group 4, Khu 1, Yen Thanh Ward, Uong Bi City, Quang Ninh Province Enterprise code: 5701308031 Phone: 02033856868 Representative: Tran Van Thap Adress: Khu I, Yen Thanh Ward, Uong Bi City, Quang Ninh Province Yen Thanh Ward, Uong Bi City, Quang Ninh ProvinceFounding date: 20 - 8 - 2009