What is it that the factory only buys four insurances, such as medical insurance, but does not buy old-age care?

As long as you sign a formal labor contract, you should pay five insurances. The factory only bought four small insurances, such as medical insurance, but did not buy old-age insurance. It shouldn't be like this. Endowment insurance is the most important. Endowment insurance and medical insurance are the most important. It must be paid. You can go to the labor arbitration office for arbitration. Endowment insurance is a must.