How come Cambodia is all from Fujian?

Because Fujian is the hometown of overseas Chinese. There are many Fujianese not only in Cambodia but also in other countries. Because Fujian people began to go to Southeast Asia a long time ago, that is, to work as foreign workers in Southeast Asia. Up to now, quite a few people have gone out one after another. In foreign countries, there are quite a few famous people like Fuqing Gang, that is, people from Fuzhou, Fujian.