Complex sentence: Major sources of migrant workers but where permanent migrants of majority ethnicity of those countries are virtually nonexistent are in 2013 china 200,000 migrant workers, 1000 settled permanently.
Split into simpler sentences: Major sources of migrant workers but where permanent migrants of majority ethnicity of those countries are virtually nonexistent are in 2013. China 200,000 migrant workers, 1000 settled permanently.