Hoang Ha Address: Khu Tan My, Huu Lung Town, Huu Lung District, Lang Son Province Enterprise code: 4900260696 Phone: 0205825077 Representative: Hoang Que Phuong Adress: Khu Tan My, Huu Lung Town, Huu Lung District, Lang Son Province Huu Lung Town, Huu Lung District, Lang Son ProvinceFounding date: 24 - 8 - 2007