Thuong Mai Du Lich Va Van Tai Bien Thang Long Joint Stock Company Address: No 297, Nguyen Van Cu Street, Hong Hai Ward, Ha Long City, Quang Ninh Province Enterprise code: 5700730064 Phone: 0203825668 Representative: Bui Ngoc Thanh Adress: No 28, Hong Ngoc Street, Bach Dang Ward, Ha Long City, Quang Ninh Province Hong Hai Ward, Ha Long City, Quang Ninh ProvinceFounding date: 16 - 1 - 2008