Hoang Yen Address: Civil Group 15, Vi Xuyen Town, Vi Xuyen District, Ha Giang Province Enterprise code: 5100195922 Phone: 0219826902 Representative: Nguyen Huu Vien Adress: Civil Group 15, TTVX, Vi Xuyen District, Ha Giang Province Vi Xuyen Town, Vi Xuyen District, Ha Giang ProvinceFounding date: 26 - 6 - 2006