Hoang Son Ha Noi Joint Stock Company Address: Tap The Khach San Thang Loi, Lane 310, Nghi Tam Street, Tu Lien Ward, Tay Ho District, Ha Noi City Enterprise code: 0103007423 Phone: 0247197430 Representative: Tran Trung Hieu Adress: Hamlet 3, Dong My Commune, Thanh Tri District, Ha Noi City Tu Lien Ward, Tay Ho District, Ha Noi CityFounding date: 12 - 11 - 2008