legal ground
Article 46 of the Securities Law of People's Republic of China (PRC)
To apply for the listing of securities, an application shall be submitted to the stock exchange, which shall examine and approve the application according to law, and both parties shall sign a listing agreement.
The stock exchange arranges the listing and trading of government bonds according to the decision of the department authorized by the State Council.
Article 47
The application for listing of securities shall meet the listing conditions stipulated in the listing rules of stock exchanges.
The listing conditions stipulated in the listing rules of a stock exchange shall require the issuer's operating years, financial status, minimum public offering ratio, corporate governance and credit record, etc.