Thuong Mai Va Khao Sat Truong Son LTD Address: No 153 Kim Hoa, Phuong Lien Ward, Dong Da District, Ha Noi City Enterprise code: 0110282413 Phone: 0934537270 Representative: Le Thi Tram Oanh Adress: No 05 BT2, Van Phu Urban Area, Phu La Ward, Ha Dong District, Ha Noi City Phuong Lien Ward, Dong Da District, Ha Noi CityFounding date: 13 - 3 - 2023