Thuong Mai Va Dich Vu Ky Thuat Sas Viet Nam Joint Stock Company Address: 4th Floor, Ocean Park Building, No 1 Dao Duy Anh, Phuong Mai Ward, Dong Da District, Ha Noi City Enterprise code: 0109087665 Phone: 0909276179 Representative: Than Danh Tuan Adress: 69 Ly Nam De, Cua Dong Ward, Hoan Kiem District, Ha Noi City Phuong Mai Ward, Dong Da District, Ha Noi CityFounding date: 13 - 2 - 2020