Hat Quan Ly De Khoai Chau Address: Xuan Dinh, Ham Tu, Ham Tu Commune, Khoai Chau District, Hung Yen Province Enterprise code: 0900307040 Phone: 02121915810 Ham Tu Commune, Khoai Chau District, Hung Yen ProvinceFounding date: 31 - 12 - 2008