Which countries have more immigrants to China, and why do they immigrate to China?

The laws there are loose and it is a paradise for corrupt officials and criminals; For example, Lai Changxing has been begging for extradition to China to accept legal sanctions, but until now, that is, before Lai Changxing spent all the huge sums brought to Canada, Canada has been prevaricating on the national conditions; It is estimated that Lai Changxing will not be extradited to China until he has spent all the huge sum taken abroad! !