Khai Thac Dau Khi Khoang San Vang Bac Da Quy Viet Nam Joint Stock Company Address: 3rd Floor, No 146, Nguyen Sy Sach Street, Khoi Yen Vinh, Hung Phuc Ward, Vinh City, Nghe An Province Enterprise code: 2901407161 Phone: 02383866867 Representative: Nguyen Thi Bang Adress: Khoi Yen Binh, Hung Phuc Ward, Vinh City, Nghe An Province Hung Phuc Ward, Vinh City, Nghe An ProvinceFounding date: 5 - 7 - 2011