1. The stock is publicly issued with the approval of the State Council Securities Regulatory Authority.
2. The total share capital of the company is not less than RMB 30 million.
3. The publicly issued shares account for more than 25% of the total shares of the company. If the company's total share capital exceeds 400 million yuan, the proportion of publicly issued shares is more than 10%.
4. The company has no major illegal acts in the last three years, and its financial and accounting reports have no false records. A stock exchange may prescribe listing conditions higher than those prescribed in the preceding paragraph, and report them to the the State Council securities regulatory authority for approval. Shanghai CNVIOS met all the above conditions and the application was approved, so Shanghai CNVIOS was listed.