Hat Kiem Lam Huyen Ham Yen (Don Vi Nop Ho) Address: Khu Tan Bac, Tan Yen Town, Ham Yen District, Tuyen Quang Province Enterprise code: 5000305995 Phone: 02073842221 Tan Yen Town, Ham Yen District, Tuyen Quang ProvinceFounding date: 7 - 1 - 2009