Trung Tam Dan So - Ke Hoach Hoa Gia Dinh Address: Hong Son Hamlet, Son Thinh Commune, Van Chan District, Yen Bai Province Enterprise code: 5200529738 Phone: 02163874067 Representative: Ha Thi Mong Hoai Adress: Civil Group 23, Pu Trang Ward, Nghia Lo Town, Yen Bai Province Son Thinh Commune, Van Chan District, Yen Bai ProvinceFounding date: 20 - 5 - 2010