Phong Tai Nguyen Va Moi Truong Huyen Hoanh Bo Address: Khu 4, Troi Town, Hoanh Bo District, Quang Ninh Province Enterprise code: 5700950743 Phone: 0203858175 Troi Town, Hoanh Bo District, Quang Ninh ProvinceFounding date: 8 - 10 - 2008