Thien Son LTD Address: No 421, Tran Phu Street, To16, Tran Phu Ward, Ha Giang City, Ha Giang Province Enterprise code: 5100178363 Phone: 02193866009 Representative: Nguyen Van Quyet Tran Phu Ward, Ha Giang City, Ha Giang ProvinceFounding date: 14 - 1 - 2005