Xay Dung Khai Thac Khoang San Song Thao Joint Stock Company Address: Khu 1, Civil Group 1, Van Co Ward, Viet Tri City, Phu Tho Province Enterprise code: 2600718043 Phone: 02103818815 Representative: Pham Quoc Trung Adress: Khu 4, Van Phu Ward, Viet Tri City, Phu Tho Province Van Co Ward, Viet Tri City, Phu Tho ProvinceFounding date: 31 - 12 - 2010