Doanh Tu Nhan Ngoc Khanh Address: No 114, Civil Group 11, Tan Binh Town, Yen Son District, Tuyen Quang Province Enterprise code: 5000490385 Phone: 02073878320 Representative: Nguyen Thi Hue Adress: No 16, Civil Group 10, Tan Binh Town, Yen Son District, Tuyen Quang Province Tan Binh Town, Yen Son District, Tuyen Quang ProvinceFounding date: 25 - 6 - 2009