The following article, published about a year ago now, appears relevant if not worrying reading.
https://www.copyright link/markets/equity-markets/chinese-capital-controls-hit-asx-20180418-h0yx4t
Subsequent experiences of some shareholders in one of the companies mentioned (TTC) you can read by searching the ticker on this forum.
Makes me wonder why Chinese based companies were allowed, and I guess still are allowed, to list on ASX.