Truong Mam Non Yen Than Huyen Tien Yen Address: Trung Tam Xa, Yen Than Commune, Tien Yen District, Quang Ninh Province Enterprise code: 5701190446 Phone: 02033742212 Adress: Khu Lam Truong, Dong Tien Ii Street, Tien Yen Town, Tien Yen District, Quang Ninh Province Yen Than Commune, Tien Yen District, Quang Ninh ProvinceFounding date: 11 - 5 - 2009