I am, like, super late on this. But if you go to the Trades and Resources thread, there's the imports list in the OP under a spoiler which shows everything being imported to every region.
It's not quite up-to-date, since Wombat has been doing selfish real-life stuff to do with getting married and employment or some nonsense like that, but it should be fairly easy to track trades after that in the trade update posts later in the thread.