Ky Thuat Va Xay Dung Co Dien Long Son Joint Stock Company Address: Civil Group 1 (Tai NHA ONG DAM Xuan Tuan), Thien Huong Ward, Hai Phong City, Viet Nam, Hai Phong City Enterprise code: 0202312481 Phone: 0855365114 Representative: Le Van Son Hai Phong CityFounding date: 10 - 9 - 2025