Tu Van Va Xay Dung Quang Minh Lang Son LTD Address: No 26, Tran Dang Ninh Street, Ky Lua Ward, Tinh Lang Son, Viet Nam Enterprise code: 4900946894 Phone: 0947111595 Representative: Nguyen Viet Quang Ky Lua Ward, Lang Son City, Lang Son ProvinceFounding date: 6 - 8 - 2026