The unit customer shall issue the certificate of account opening such as the power of attorney of the unit and the ID card of the agent. Unless otherwise stipulated by the China Securities Regulatory Commission, the valid identification documents of general corporate customers are organization code certificate and business license; Securities companies, fund management companies, trust companies and other financial institutions, as well as social security companies, qualified foreign institutional investors and other laws, administrative regulations and rules require special unit customers to manage assets separately, and their valid identification documents shall be separately stipulated by the monitoring center.