Bryan, thanks for that link. You must have a brilliant memory to pull this out of the archives so quickly.
I know that I'm years too late to the party, but this is still pretty cool stuff and I will keep a keen eye on the moulds used in each of my pick-ups.
It would be interesting to see though, if anyone has a made in Taiwan (say) A-wing or Imperial Gunner MOC or indeed any other different factory for that matter. But I have a feeling that Mr Wolf might be right. For example, Luke Jedi had 3 factory companies making the figure for Kenner MOC right up to 77backs. After which all Luke Jedis were made by the Taiwan Factory only. So it seems plausible that production was centralised for each other character too.
Agree Tri-logos are all over the place - The most commonest Tri-logo Luke Jedis that I have picked-up have been Taiwan COO, yet they never bothered to update the COO which says Hong Kong on the card. Makes me wonder why they bothered putting a COO on the Tri-logo card in the first place.