Tu Van Xay Dung Nam Thang Joint Stock Company Address: Khu 4, Vinh Quang Town, Hoang Su Phi District, Ha Giang Province Enterprise code: 5100264319 Phone: 0973221888 Representative: Nguyen Van Hung Adress: Khu 4, Vinh Quang Town, Hoang Su Phi District, Ha Giang Province Vinh Quang Town, Hoang Su Phi District, Ha Giang ProvinceFounding date: 9 - 3 - 2009