Do Thi Khuyen Address: Thuong Don Hamlet, Lien Son Commune, Tan Yen District, Bac Giang Province Enterprise code: 8730209721 Phone: 02376720689 Representative: Do Thi Khuyen Lien Son Commune, Tan Yen District, Bac Giang ProvinceFounding date: 14 - 1 - 2022