Personnel information (Volume II): 1. The identity certificate and registration certificate of the registered personnel listed in the Application Form for Qualification of Construction Enterprises; 2. Professional title certificate, identity certificate and endowment insurance certificate of unregistered professional and technical personnel required by the qualification standards of construction enterprises; 3. Some qualification standards require enterprises to have professional title certificates, identity certificates and endowment insurance certificates of special professional and technical personnel, and should also provide corresponding certificates and certification materials that reflect the specialty; 4. The subcontracting enterprise shall provide the post certificates and identity certificates of the personnel required by the standards.