Duong Ha Address: Qui Nong B Hamlet, Hoa Loi Commune, Chau Thanh District, Tra Vinh Province Enterprise code: 2100340557 Phone: 0294211542 Representative: Duong Thi Thu Ha Adress: Qui Nong B Hamlet, Hoa Loi Commune, Chau Thanh District, Tra Vinh Province Hoa Loi Commune, Chau Thanh District, Tra Vinh ProvinceFounding date: 18 - 10 - 2007