| Yizheng Chemical Fiber 仪征化纤股份 | |
| Foundation: | 1993 |
| Location City: | Yizheng, Jiangsu |
| Location Country: | People's Republic of China |
| Key People: | Chairman Qian Hengge |
| Area Served: | People's Republic of China |
| Industry: | Chemical industry |
| Products: | Chemical fiber production |
| Parent: | Sinopec |
Yizheng Chemical Fiber, full name "Sinopec Yizheng Chemical Fiber Company Limited", abbreviated as "Yizheng", is a subsidiary company of Sinopec, which is engaged in sales and production of fibers and fiber materials on Mainland China. The headquarters of the company is located at Yizheng City, Jiangsu Province.
There have been hopes that Sinopec, Yizheng's parent company, will process share reform and privatize Yizheng Chemical Fiber and Sinopec Shanghai Petrochemical, but the plan has not been finalized.
Yizheng has both A share and H share listed in Shanghai Stock Exchange and Hong Kong Stock Exchange respectively, with the greatest difference between A and H share prices currently. It also has the largest 6tr EUhistorical P/E ratio among all H shares, currently more than 200 times.