Truong Pho Thong Dan Toc Noi Tru Huyen Tien Yen Address: Dong Tien Street, Tien Yen Town, Tien Yen Town, Tien Yen District, Quang Ninh Province Enterprise code: 5700960484 Phone: 02033876470 Adress: Dong Tien 2 Street, Tien Yen Town, Tien Yen Town, Tien Yen District, Quang Ninh Province Tien Yen Town, Tien Yen District, Quang Ninh ProvinceFounding date: 31 - 10 - 2008