Tech On Solution Joint Stock Company Address: Lot 06 DV03 Khu Dich Vu Tay Nam Linh Dam, Hoang Liet Ward, Hoang Mai District, Ha Noi City Enterprise code: 0111452900 Phone: 0965606304 Representative: Ong Ngoc Tuan Hoang Liet Ward, Hoang Mai District, Ha Noi CityFounding date: 8 - 4 - 2026