If we can trust the guidance presented in the Q3 report, the net income for the 2019 result would be 100.000.000x10,37x0,35 = $362 950 000
For each SIAF share today, that would mean $362950000/20133757*0,18*30= $97 value in Triway dividend for each SIAF share you hold today with PE30.
And in addition, each SIAF share would have $362950000/20133757*0,19*30 = $103 in value for the remaining holdings. Normally investment companies comes with a discount, like 90-80% of the underlying value. The good thing here is that if the true SIAF share value is not realized, SIAF can always give out all its holdings as dividends.
We are only talking about the value for Triway spin off here. Total amount for all the spin offs is of course much higher.