Ngoc Hieu LTD Address: No 143, Tieu Khu 4, Hat Lot Town, Mai Son District, Son La Province Enterprise code: 5500381514 Phone: 02122472888 Representative: Nguyen Van Hoan Adress: No 143, Tieu Khu 4, Hat Lot Town, Mai Son District, Son La Province Hat Lot Town, Mai Son District, Son La ProvinceFounding date: 6 - 10 - 2009