Can China citizens apply for permanent residence in China after emigration? What are the requirements?

There seems to be no such thing as a permanent resident in China at present, but Singaporean citizens can visit China without a visa. When it expires, just go to Hong Kong and come back. I won't leave you a long-term solution. Only foreigners in senior management can apply for long-term visas in Hongkong and China. If you think everyone is so convenient, who will go to Hong Kong every three months? If Hong Kong is too far away, you can also transfer to South Korea and Japan. Anyway, American citizens can.