Because here's how it could work.
You buy the remaining 70% of the company, for twice the current PPS - that costs about $9 million.
So for $11 million, ($9 million to buy 70% plus $2 million in value for the 30% you already own), you have $21 million in cash and $8 million plus in annual profits.
That assumes of course their numbers are accurate.
Or, if they're not, you don't buy the company and sell your shares for whatever you can get. According to the 2010 10K, Bin Wang's family sold 6 million shares of CSGH between June 1 2010 and May 31, 2011, when the stock was much higher, taking their ownership from 43% down to 31%.
Now that really explains a lot!
In a week and a half, we should know what they did over the last fiscal year.