Do institutions need to announce the recruitment of supernumerary personnel?

Public institutions need to make an announcement when recruiting non-staff personnel. According to the Measures for the Administration of Non-staff Personnel in Public Institutions, the employment of non-staff personnel should be made public. Non-staff refers to the personnel outside the company's planning, and the personnel inside the company are called non-staff personnel. Non-staff personnel can also be understood as informal personnel (informal workers) or non-staff recruiters.