How many companies does Ling Rui Pharmaceutical have in Beijing, Changzhou, Zhengzhou and Xinyang?

According to official website, Henan Ling Rui Pharmaceutical Co., Ltd. and Henan Ling Rui Pharmaceutical Co., Ltd. are high-tech enterprises and listed companies (stock code: 600285). At present, the company holds and shares in more than ten enterprises in Beijing, Shanghai, Wuhan, Zhengzhou, Xinyang and other places, and has several scientific research and production bases, among which Lingrui Xinxian Ecological Industrial Park is the largest rubber ointment drug production base in China, Ling Rui Xinyang Science and Technology Park is an advanced large-scale oral drug production base in China, and Ling Rui Institute of Medicine established in Beijing is the company's scientific research and development base. It has a national enterprise technology center and a postdoctoral research center, and has established an academician workstation in Henan Province.

Hold a certain number of shares to control the business of a company. A company that controls a company by holding a certain number of shares.