That is to say, when the Mining Bureau recruits people, you sign up and hold a diploma like self-study exam, so people will not recognize you. But if you have become a full-time employee, it is recognized to go to the organization department for filing with your diploma.
There are also courses, substitute training and party schools organized by Huozhou Coal and Electricity or Shanxi Coking Coal, and diplomas obtained through these channels are also recognized.
One of the specific registration methods is to pay attention to the documents issued or consult the organization department.