Van Tai - Xay Dung Hai Duong Joint Stock Company Address: Tan Thanh 2 Street, Van Quan Town, Van Quan District, Lang Son Province Enterprise code: 4900598365 Phone: 0914663535 Representative: Hoang Van Hai Adress: Tan Thanh 2 Street, Van Quan Town, Van Quan District, Lang Son Province Van Quan Town, Van Quan District, Lang Son ProvinceFounding date: 8 - 7 - 2010