W ang Junshi is a Chinese billionaire whose wealth is derived from his family's stake in the Haisco Pharmaceutical Group. The company specializes in the research, development, and sale of specialty drugs in China. The company has a strong focus on producing drugs for specific therapeutic areas, with a particularly strong market position in anesthetics and drugs for the treatment of liver disease. The company's growth has been driven by China's expanding healthcare market and its focus on high-margin specialty pharmaceuticals.

While his relative, Wang Junmin, is the chairman of the company, Wang Junshi and his family are major shareholders. The family's controlling stake in the publicly traded company is the source of their considerable fortune. He is a key figure in the family's business and has benefited from the massive success of the pharmaceutical enterprise.