Koshien Joint Stock Company Address: 2nd Floor Tai Nha, Lot L1-10, Nha O De Ban To 13 Project, Tu Liem Ward, Ha Noi Town, Viet Nam, Ha Noi City Enterprise code: 0111595306 Phone: 0982037135 Representative: Tran Thi Hong Nhung Tu Liem Ward, Bac Tu Liem District, Ha Noi CityFounding date: 6 - 8 - 2026