Phong Kinh Te Va Ha Tang Huyen Tien Yen Address: Dong Tien I Street, Tien Yen Town, Tien Yen District, Quang Ninh Province Enterprise code: 5700928603 Phone: 0203740889 Tien Yen Town, Tien Yen District, Quang Ninh ProvinceFounding date: 8 - 9 - 2008