Which company is the backdoor listing of Qingdao martial arts?

Qingdao Jin Wang Applied Chemistry Co., Ltd. Qingdao Guoshu Information Technology Co., Ltd. is a technology enterprise focusing on big data and artificial intelligence. Backdoor listing means that companies control listed companies through acquisition and asset replacement, thus bypassing the complicated process of IPO and realizing rapid listing. In the case of Qingdao Guoshu's backdoor listing, the company chose Qingdao Jin Wang Applied Chemistry Co., Ltd. as the shell company.