Trung Dung Address: No 211, Tieu Khu 4, Hat Lot Town, Mai Son District, Son La Province Enterprise code: 5500226942 Phone: 02123843226 Representative: Nguyen Khanh Dung Adress: No 211, Tieu Khu 4, Hat Lot Town, Mai Son District, Son La Province Hat Lot Town, Mai Son District, Son La ProvinceFounding date: 8 - 4 - 2005