Everyone can only have one nationality?

China's nationality law stipulates that China citizens can only have one nationality.

Most countries allow dual citizenship.

However, in recent years, the number of overseas Chinese immigrants has increased dramatically. A considerable number of these new immigrants hope to seek a better living and development environment in their country of residence through naturalization, but they are unwilling to give up their China citizenship. In addition, the country of residence does not require naturalized people to give up their original nationality. Therefore, a considerable number of overseas Chinese now have dual nationality.