Khai Thac Khoang San Thanh Cong Joint Stock Company Address: Ky Dong Street, Civil Group 2, Tran Hung Dao Ward, Tinh Hung Yen, Viet Nam Enterprise code: 1001335755 Phone: 0379876666 Representative: Bui Thi Nga Tran Hung Dao Ward, Hung Yen City, Hung Yen ProvinceFounding date: 5 - 8 - 2026