Chi Nhanh Cong Ty Co Phan Khoang San Viet Nam Address: Na Phac Town, Huyen Ngan Son, Bac Can Enterprise code: 0101062595-001 Phone: 02149877268 Representative: Trieu Van Duong Adress: Na Phac Town, Huyen Ngan Son, Bac Can Na Phac Town, Ngan Son District, Bac Kan ProvinceFounding date: 5 - 5 - 2005