Ky Thuat Cong Nghe Bao Son LTD Address: P.1101, 11th Floor, Toa Rox Center, No 136 Ho Tung Mau, Phu Dien Ward, Ha Noi Town, Viet Nam, Ha Noi City Enterprise code: 0111609485 Phone: 0977143651 Representative: Do Van Nghia Phu Dien Ward, Bac Tu Liem District, Ha Noi CityFounding date: 18 - 8 - 2026