Hgnbooks LTD Address: 1st Floor - Toa A5, Lot 09 - An Binh City - KDT, Giao Luu - TDP Hoang 21 City, Phu Dien Ward, Ha Noi Town, Viet Nam, Ha Noi City Enterprise code: 0111347536 Phone: 0904682812 Representative: Nguyen Ngoc Hoang Phu Dien Ward, Cau Giay District, Ha Noi CityFounding date: 15 - 1 - 2026