In reply to Meme.

look at it like this. Mariah Carey's had Japan-only releases. Yes it's available on the "worldwide web" but If all of her fans in America went and bought that Japan only release it shouldn't and wouldn't impact U.S. charts.

The album should have not been #1 on U.S. charts if mostly people from another country was buying it. #1 on global charts, sure. #1 on U.S. charts with Chinese IP addresses? No. An album can't be #1 in a country with all of its sales coming from another country.

Sales are counted per country in the country where the sales originated. Hence how Nicki Minaj could be #1 on the itunes of several diff countries yet miss the top spot in America.