Hai Yen Cao Bang LTD Address: Doan Ket Hamlet, Thong Nong Town, Ha Quang District, Cao Bang Province Enterprise code: 4800917378 Phone: 02278417894 Representative: Dam Trong Hien Thong Nong Town, Ha Quang District, Cao Bang ProvinceFounding date: 17 - 3 - 2020