Aside from China and Japan, which country is the biggest contributor to album sales in Kpop?

For some groups the USA.

Genovia 

Joking but wouldn’t it be korea

I have no numbers to back this up, but my guess would be South Korea.

depends on group itself tho

it rlly depends on group.....but ik for svt, their biggest contributor is definitely south korea, then followed by japan/china

BP I would think Thailand.

For many others USA?

From kwangya

For Korean releases how many groups sell more in Japan than the US these days?

If you exclude Japanese specific releases - in my opinion it's more China/South Korea > US > Japan > the rest. With some SEA countries probably being the biggest in the rest section.

Available Hanteo authentication reports for TREASURE's latest EP (released on Feb. 15, 2022):

Most likly an Asian country since KPop isn't that known in countries of other continents

Korea most likely

people overestimate kpop western fans' physical album purchases and underestimate sea fans' physical album purchase imo.

Quote from Strawberry-Jam

people overestimate kpop western fans' physical album purchases and underestimate sea fans' physical album purchase imo.

tru tru

Philippimes and Indonesia. And South Ametican countries.

Indonesia I believe

USA?

SEA?