Mormons in Japan

Do they have Mormons in Japan?  I'm not sure.  And by Mormons, I mean like, members of the Fundamentalist Church of Latter Day Saints.  The type of Mormons that practice polygamy.  Which is weird....but that's beside the point.  Are there Mormons in Japan?  What about Mongolia?  Siberia?  Uzbekistan?  I just don't know.  What if they are only in America?  Does that even matter?