By August, 2023, a total of 392,206 enterprises had been approved as national high-tech enterprises, including 5 enterprises in Qinglong Manchu Autonomous County, namely Hebei Litong Cable Co., Ltd., Qinglong Manchu Autonomous County Tailong Electronic Technology Co., Ltd., Qinglong Manchu Autonomous County Tianxing Mining Co., Ltd., Qinhuangdao Qinglong Hengli Glass Fiber Co., Ltd. and Qinhuangdao Guanfeng Metal Material Co., Ltd. ..