Tu Van Thiet Ke Va Xay Dung Khang An NT LTD Address: Civil Group 4, Dong Nam 1, Bac Nha Trang Ward, Tinh Khanh Hoa, Viet Nam Enterprise code: 4202035997 Phone: 0987891949 Khanh Hoa ProvinceFounding date: 14 - 8 - 2025