Xuat Nhap Khau Dang Khoa Lang Son Joint Stock Company Address: Nga 4, Khu Ga, Dong Dang Town, Cao Loc District, Lang Son Province Enterprise code: 4900771468 Phone: 0986123127 Representative: Hoang Manh Dung Adress: Nga 4, Khu Ga, Dong Dang Town, Cao Loc District, Lang Son Province Dong Dang Town, Cao Loc District, Lang Son ProvinceFounding date: 13 - 3 - 2014