Jiangsu North Huguang Optoelectronics Co., Ltd. (the state-owned No. 559 Factory), subordinate to China North Industries Group North Optoelectronics Group Co., Ltd., was established in Wuxi, Jiangsu Province, on the shore of the Taihu Lake Lake in 1960. It is a national defense unit with the largest variety of military night vision equipment developed and the largest number of production. The company has built a continuous, flexible, and automated production line based on its own actual situation and emergency production needs.