Chung Ngoc Address: Tieu Khu 4, Tong Lanh Commune, Thuan Chau District, Son La Province Enterprise code: 5500213911 Phone: 02123849226 Representative: Ha Van Nang Adress: Tieu Khu 4, Tong Lanh Commune, Thuan Chau District, Son La Province Thuan Chau District, Son La ProvinceFounding date: 30 - 10 - 2003