Dia Ky Thuat Va Moi Truong DT LTD Address: Nghia Hung, An Sinh Ward, Dong Trieu Town, Quang Ninh Province Enterprise code: 5702218567 Phone: 0356411666; Representative: Duong Cong Duc An Sinh Ward, Dong Trieu Town, Quang Ninh ProvinceFounding date: 11 - 3 - 2026