PB 5% is abnormal for profitable companies, fully reporting and on OTC/QX. Even in the China space. However, it seems that there are a few agricultural companies doing poorly.
PB 2% only applies to companies that went dark, or are most likely frauds, and with a very questionable future, and/or are not profitable at all.
I would like to buy some PB 2% companies that are dark. But the problem is that they usually have zero liquidity. And I don't have the extra money most of the time.
I think SIAF should be trading at 15% of book. But it's hardly something to be proud of. At 30% it would be in line with the depressed sector. But even then it should be trading higher given its competitive advantage and future growth.
I'm telling you, if they keep making a mess of things and refuse to pay cash dividends then it may go from bad to worse, still.