Generally, yes. If there is any alteration, you can sign at the altered place and confirm by handprint. However, the power of attorney for notarization appraisal is wrong and cannot be altered at will, so it needs to be filled in again. When filling in the power of attorney, it is necessary to carefully fill in the names, gender, date of birth, occupation, current address, entrusted matters and other information of the client and the trustee.

legal ground

People's Republic of China (PRC) Civil Code

Article 919 An entrustment contract is a contract in which the principal and the agent agree that the agent shall handle the principal's affairs.

Article 922 The agent shall handle the entrusted affairs in accordance with the instructions of the principal. If it is necessary to change the client's instructions, it shall be approved by the client; If it is difficult to get in touch with the client due to an emergency, the agent shall properly handle the entrusted affairs, but shall report the situation to the client in time afterwards.