Established in 1995, NANHAO Group is a key national high-tech enterprise specializing in the independent R & D and manufacture, sales and services of education information products in China. Taking intelligent recognition as core technology, we succeed in developing Optical Mark Reader(OMR), Online Scoring System and Interactive Whiteboards etc., NANHAO Group consists of four subsidiary companies and one school namely HEBEI NANHAO Information Industry Co., Ltd, Hebei NANHAO Hi-Tech Development Co., Ltd, NANHAO(Beijing) Science & Technology Co., Ltd, Beijing Hua Yu Tian Cheng Science and Technology Co., Ltd and Zhongxing Foreign Trade School.