I am an employee of a state-owned enterprise. The internal recruitment of the headquarters requires the personnel department of the current unit to provide materials, but the personnel department has

I am an employee of a state-owned enterprise. The internal recruitment of the headquarters requires the personnel department of the current unit to provide materials, but the personnel department has been slow to provide them. Is this a violation of the labor law? There is no violation. This has nothing to do with the labor law.

Do the internal application materials need to be signed and confirmed by the personnel department, or should the superior personnel department directly call the personnel department of your unit?

This situation may be that your company doesn't want to let people go now. You can report it to the recruitment department and put pressure on your company through them.