The client shall sign the entrustment contract (agreement). If Zhang San entrusts Li Si to attend the meeting, Zhang San is the principal and Li Si is the principal, and the signature of the power of attorney shall be Zhang San.

A principal refers to a person who entrusts others to handle affairs for himself. In the securities brokerage business, the principal refers to a natural person or legal person who can buy and sell securities according to the provisions of national laws and regulations. ?

Extended data:

In the performance of the entrustment contract, the agreement of the principal, the principal and the third party:

If the trustor is unable to perform its obligations to the third party due to the trustor's reasons, the trustee shall disclose the trustor to the third party, and the third party shall choose the trustee or the trustor as the relative person to claim rights, but the third party shall not change the relative rights it chooses;

If the trustor exercises the rights of the trustee against a third party, the third party may claim its defense against the trustee from the trustor.

If the third party chooses the trustor as the counterpart, the trustor may claim its defense against the trustee and the trustee's defense against the third party.

References:

Client _ Baidu Encyclopedia