Can supernumerary teachers not buy social security?

Legal analysis: it may be that your unit is not an enterprise. Although you and your company have formed a factual labor relationship, the law is not strict. I advise you to negotiate with the enterprise first and let him help you out. Because your salary is low, it has no effect on the total salary of the enterprise, so you have to pay part of it yourself. If legal arbitration is conducted, you will win the case with less than 30% certainty. After that, your job may not be yours.

Legal basis: People's Republic of China (PRC) Social Insurance Law.

Article 4 Employers and individuals in People's Republic of China (PRC) shall pay social insurance premiums according to law, and have the right to inquire about payment records and personal rights and interests records, and ask social insurance agencies to provide social insurance consultation and other related services.

Individuals enjoy social insurance benefits according to law and have the right to supervise the payment of their own units.

Fifth people's governments at or above the county level shall incorporate social insurance into the national economic and social development plan.

The state raises social insurance funds through multiple channels. People's governments at or above the county level shall give necessary financial support to social insurance.

The state supports social insurance through preferential tax policies.