Phat Trien Khoang San Ngan Son Joint Stock Company Address: Khu 1 Van Tung, Na Phac Town, Ngan Son District, Bac Kan Province Enterprise code: 4700270538 Phone: 0899999989 Representative: Pham Hoang Thang Na Phac Town, Ngan Son District, Bac Kan ProvinceFounding date: 12 - 4 - 2018