When will the work of central enterprises be admitted to the graduate school and leave the company?

you need to apply to the company in advance and go through the resignation formalities according to the company's regulations. Taking China Electric Power Recruitment Network as an example, it is stipulated that "the company should apply to the original unit for resignation one month in advance, and should arrive at the recruitment place three days before joining the company, and the staff of the human resources department will guide the resignation procedures at the examination site." Different central enterprises are different and need to consult the relevant regulations of their enterprises.