Originally Posted by
Santander
All TG booking classes (international) earn 100% on AP so you'll be fine. Seeing as you'll probably be flying only UA and TG on a UA ticket YYZ-BKK, you should be fine. Enjoy the "food" on UA.

I've flown YYZ-BKK, booked via AC.com, BKK-NRT leg was on TG. Got zero miles. NRT-BKK via ANA, 50% miles. (And these are confirmed with the new AC.com feature showing the booking classes and miles.)
I try to stay away from UA, I know what you mean.