What are the most monopolistic pharmaceutical stocks?

1, Xinlitai:

Shenzhen Xinlitai Pharmaceutical Co., Ltd. is by the Chinese people *** and the Ministry of Commerce, "the Ministry of Commerce on the consent of Shenzhen Xinlitai Pharmaceutical Co., Ltd. restructured into a sino-foreign equity joint-stock enterprises approved by the", on June 29, 2007 by the Shenzhen Xinlitai Pharmaceutical Co. Ltd. was established, with a registered capital of 85 million yuan, at the same time received the business license of enterprise legal person, registration number: 440301501124347.

2, Hengrui Medicine:

Jiangsu Hengrui Pharmaceutical Co. Group Co., Ltd. and other five promoters in April 1997 **** with the establishment of the joint stock company, is the largest domestic research and production base of anti-tumor drugs.

3, Huahai Pharmaceutical

Zhejiang Huahai Pharmaceutical Co., Ltd. was founded in 1989, its predecessor for the Linhai City Flood Bridge Synthesis Chemical Plant, in January 2001, the whole change was set up for the Zhejiang Huahai Pharmaceutical Co. Stock abbreviation: Huahai Pharmaceuticals, stock code: 600521.

4, Jingxin Pharmaceuticals

Zhejiang Jingxin Pharmaceuticals Co., Ltd. was founded in 1974, and has now developed into a national key high-tech enterprises, China's top 100 pharmaceutical companies.

In July 2004, the company was listed on the Shenzhen Stock Exchange.

5, Puli Pharmaceutical

Hainan Puli Pharmaceutical Co., Ltd. was founded in 1992, specializing in chemical pharmaceutical preparations research and development, production and sales of high-tech enterprises, has been through the China Pharmaceutical Enterprises internationalization of the preparations of the pilot enterprise certification. The company has two wholly-owned subsidiaries, Zhejiang Puli Pharmaceutical Co.