Xay Dung Phat Trien Cong Trinh Ha Tang Ky Thuat Joint Stock Company Address: Khoi 5, Hop Thanh Commune, Cao Loc District, Lang Son Province Enterprise code: 4900889011 Phone: 0985010866 Representative: Ta Van Quang Adress: Yen Vinh Hamlet, Thanh Lam Commune, Me Linh District, Ha Noi City Hop Thanh Commune, Cao Loc District, Lang Son ProvinceFounding date: 11 - 8 - 2022