Yes, of course. But the OP is clearly new to Thai airlines and wouldn't understand that PG is the rather unintuitive IATA designator for Bangkok Airways and I couldn't be bothered to type it out each and every time. In context, I think I get away with the abbreviation.

Interesting if Thai Smile is being absorbed into Thai Airways. Thanks for the heads up. I haven't followed the airline and never consider it since I found out I couldn't use the domestic lounges for Thai Smile flights with my *A Elite status and I'd therefore rather use Air Asia and spend the saving on booze. I'll do some research on this as I would hope this means they will enable *A recognition as part of the transition.