What if the company stops paying social security and provident fund on the grounds that it has no money?

It depends on the negotiation between enterprises and employees. Generally, more formal enterprises will not agree. For example, if you work until June 1, but you want me to stop paying social security and provident fund in May 1, the provident fund is fine, but social security includes work-related injuries, which is what enterprises are most afraid of. To put it mildly, if you have a work-related injury in May, the economic cost, social cost and corporate image of the enterprise will suffer great losses. No regular company can afford the loss of several hundred dollars. Of course, many small businesses don't care.

For yourself, I don't know what the reason is, but I don't advise you to stop the insurance. Losing a month's pension may have little impact on your future pension, but you will lose money on medical care and work-related injuries or other potential benefits. For example, many cities stipulate that you can buy a house after paying social security for one year in a row. If you interrupt, you will lose a lot.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.