When will the social security medical care in Korla end this year?

I'm not sure about your specific requirements, but you can call 12333, the national social security unified telephone, and you can consult the local detailed policies.

In addition, in your case, we can directly convert it into personal payment here (Chengdu), and my friend now pays directly for his own pension and medical care.

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