QDK Joint Stock Company Address: B10-LK5, O So 30, Moi Hai Ben Urban Area, Le Trong Tan Street, Duong Noi Ward, Ha Noi Town, Viet Nam, Ha Noi City Enterprise code: 0111174121 Phone: 0868847578 Representative: Nguyen Anh Vu Ha Noi CityFounding date: 12 - 8 - 2025