Tu Van Va Xay Dung Tan Dat LTD Address: No 27, Nguyen Thi Minh Khai Street, Bac Son Town, Bac Son District, Lang Son Province Enterprise code: 4900787147 Phone: 0945389986 Representative: Hoang Bach Long Adress: Duc Tam 1 Street, Van Quan Town, Van Quan District, Lang Son Province Bac Son Town, Bac Son District, Lang Son ProvinceFounding date: 11 - 11 - 2015