Van Phong Dai Dien Cong Ty TNHH Ky Thuat BKS Address: 5- TM3B-6, Nam Urban Area, Vanh Dai 3 Street (Giai Doan 1), Dinh Cong Ward, Ha Noi Town, Viet Nam, Ha Noi City Enterprise code: 0312765420-004 Phone: 02866797191 Representative: Quach Van Tam Ha Noi CityFounding date: 14 - 11 - 2025