Phong Thong Ke Huyen Van Yen Address: Civil Group 5, Quarter 2, Mau A Town, Van Yen District, Yen Bai Province Enterprise code: 5200447605 Phone: 02163834229 Representative: Hoang Minh Thuyen Adress: Civil Group 5, Quarter 2, Van Yen District, Yen Bai Province Mau A Town, Van Yen District, Yen Bai ProvinceFounding date: 23 - 7 - 2009