https://www.theguardian.com/world/2017/dec/12/china-refugee-camps-border-north-korea
Document suggests at least five camps are being set up as Beijing prepares for possible influx of refugees should Kim Jong-un’s regime collapse.
Another related article from the New York Times:
https://cn.nytimes.com/china/20171212/china-north-korea-border/en-us/