China's immigration policy.

According to the laws of China, a person who once had China nationality can get his China nationality back at any time as long as he renounces his present nationality. As for any justifiable reason, it is a cover, just find any reason.

The question is, what does serving the motherland and taking care of parents have to do with nationality? Many overseas Chinese have contributed far more to China than China nationals, and there are many channels for them to serve.

In addition, the Singapore passport is equivalent to a world pass, but the China passport is restricted to go anywhere.