Trung Tam Cay An Qua Huyen Ham Yen (Don Vi Nop Ho) Address: Tan Yen Town, Ham Yen District, Tuyen Quang Province Enterprise code: 5000306205 Phone: 02073843428 Tan Yen Town, Ham Yen District, Tuyen Quang ProvinceFounding date: 7 - 1 - 2009