List of the first batch of listed companies of North Exchange

Betraying New Materials Group Co., Ltd.; Nanjing Yunchuang Big Data Technology Co., Ltd.; Hunan Orfila Tunnel Intelligent Equipment Co., Ltd.; Shanghai Chuangyuan Instrument Technology Co., Ltd.; Shanghai Airong Software Co., Ltd.; Changzhou Tonghui Electronics Co., Ltd.; Wuhan Weichuang Optoelectronics Co., Ltd.; Guandian Defense Technology Co., Ltd.; Hebei Runnong Water Saving Technology Co., Ltd.; Shanxi Keda Automatic Control Co., Ltd.; AVIC Fushida Technology Co., Ltd.; Beijing Yingtai Jiahe Biotechnology Co., Ltd.; Sanmen Sanyou Technology Co., Ltd.; Shandong Wantong Hydraulic Co., Ltd.; Anhui Phoenix Filter Co., Ltd.; Mingguang Haomiao Security Technology Co., Ltd.; Beijing avic TEDA environmental protection technology co., ltd; Zhongshe Engineering Consulting (Chongqing) Co., Ltd. Tonghui Jiashi (Beijing) Information Technology Co., Ltd.; Beijing Sanyuan Gene Pharmaceutical Co., Ltd.; Suzhou Bearing Factory Co., Ltd.; Huizhou Jinhao Medical Technology Co., Ltd.; Guilin Chen Xing Technology Co., Ltd.; Anhui Jiaxian Functional Additive Co., Ltd.; Shandong Digital Man Technology Co., Ltd.; Guangdong Drive Biotechnology Co., Ltd.; Dalian Liancheng CNC Machine Tool Co., Ltd.; Yunnan Bio-Valley Pharmaceutical Co., Ltd.; Suzhou Hechang Polymer Materials Co., Ltd.; Huizhou Huiderui Lithium Battery Technology Co., Ltd.; Changzhou Power Station Auxiliary Equipment Co., Ltd.; Hanbo High-tech Materials (Hefei) Co., Ltd.; Xin 'anjie Sanitation Co., Ltd.; Luohe Litong Hydraulic Technology Co., Ltd.; Sichuan Zitonggong Pharmaceutical Co., Ltd.; Shaanxi Tongli Heavy Industry Co., Ltd.; Jiangsu An Deyu Pharmaceutical Co., Ltd.; Guangdong Yongshun Biopharmaceutical Co., Ltd.; Jiangsu Lude Medical Electronics Co., Ltd.; Longzhu Technology Group Co., Ltd.; Zhuhai Shibi White Color Board Co., Ltd.; Ningbo Qiu Guan Cable Co., Ltd.; Nantong dida electric co., ltd; Beijing Northland Biotechnology Co., Ltd.; Shandong Hanxin Technology Co., Ltd.; Chengdu Zhonghuan Fluid Control Equipment Co., Ltd.; Qingdao Feng Guang Precision Machinery Co., Ltd.; Sichuan Changhong New Energy Technology Co., Ltd.; Dalian Gaishi Health Food Co., Ltd.; Beijing Yintu Network Technology Co., Ltd.; Shiyan Taixiang Industrial Co., Ltd.; Inner Mongolia Datang Pharmaceutical Co., Ltd.; Ningxia Tian Kai Gas Development Co., Ltd.; Qingdao Jianbang Automobile Technology Co., Ltd.; Guangmai technology co., ltd