Tuan Khang Protech LTD Address: 6th Floor, Viet A Building, No 9, Duy Tan Street, Phuong, Cau Giay District, Ha Noi City Enterprise code: 0111592270 Phone: 0949378248 Representative: Vu Thi Lan Cau Giay Ward, Nam Tu Liem District, Ha Noi CityFounding date: 4 - 8 - 2026