Something Suss?

The following Chinese ASX listed companies are/have been in a serious downtrend since listing despite reasonable fundamenals with some having more cash than market cap. Is there something suss?

DFM, DXF, PEZ, BGG, XPD, TTC, ECG, JCI, CDC, 1AL, RNC, ERX , TPO, VIG, SBB, NNW, KNH, DMC, ECG, MHI, WMC, SOP.

This is a serious line up of diverse Chinese companies who have spent millions listing on the ASX, so one has to seriously ask why given the consistent loss of equity since listing? If they are kosher, then one would reasonably expect that at least a third would prosper.

Any thoughts?