There are 2 thread talking about the same pictures. In the other thread there is a link with pictures that are dated 2009 as Ade pointed out. Excuse the pun but it's a bit fishy!
This isn't the first or the second thread showing these pictures, the first one the OPs geography was incorrect by about 1000 miles. That thread has had the pictures removed. A very intelligent fish guy on the forum knows the difference between ST and Cambodian tigers. This picture is not a cambodian tiger.
Let me ask the op. Please take a picture with a current newspaper in view, to prove its a recent photo. If they are real you're sat on a fortune by the way, so stop writing on here about it and go and see the bank to raise capital for your export business. The rest of the world is waiting for STs and you'll get 500$ easy for each piece you ship.
The Dong Nai runs through Ho Chi Min City. It's got 3 power dams on it further north.
Now you guys are saying they're being caught in both Cambodia and Vietnem, being exported to Japan but no where else. Why? Why would none of them be here in Thailand. People here would pay top dollar for them and it's easier to ship them here than Japan!
I've said it already i really hope you guys are being truthful, but i'm sceptical TBH. There are no STs in Thailand, that's a fact. None have been on the markets in America or the UK for well over 6 years, that's a fact. Now they're being pulled out of rivers in 2 different countries!