Khai Thac, Che Bien, Tuyen Quang Thong Dat LTD Address: Civil Group 36, Hong Ha Ward, Yen Bai City, Yen Bai Province Enterprise code: 5200279171 Phone: 0216249998 Representative: Nguyen Thi Phuong Loan Adress: Civil Group 12, Nguyen Phuc Ward, Yen Bai City, Yen Bai Province Hong Ha Ward, Yen Bai City, Yen Bai ProvinceFounding date: 19 - 9 - 2007