Thuong Mai & Xay Dung Long Son LTD Address: Civil Group 17, Vi Xuyen Town, Vi Xuyen Town, Vi Xuyen District, Ha Giang Province Enterprise code: 5100255089 Phone: 0989845456 Representative: Pham Khanh Hoang Adress: Civil Group 17, Vi Xuyen Town, Vi Xuyen District, Ha Giang Province Vi Xuyen Town, Vi Xuyen District, Ha Giang ProvinceFounding date: 6 - 10 - 2008