How do Chinese in South Africa return to China?

Go to the embassy to get a tourist card. Buy a plane ticket, stamp it at the immigration office, and pay a fine. It's simple. There is also a passport replacement (more troublesome). If you lose your passport, you need to report it in the newspaper. Or robbed, don't print it, but you need to report it to the local police station and write a certificate. These are all my own experiences. See for yourself. Do something easier for you.