Trung Tam Ky Thuat Tong Hop - Huong Nghiep Huyen Son Duong Address: Tan Bac Civil Group, Son Duong Town, Son Duong District, Tuyen Quang Province Enterprise code: 5000231782 Phone: 0207835259 Son Duong Town, Son Duong District, Tuyen Quang ProvinceFounding date: 15 - 4 - 2005