I believe Empress Chung has been screened in the United States
From The Lost Media Wiki
So while doing some research on this film I found two archived pages that suggest that the film has been screened in the United States. The first being at a theatre called Boardman Art Theatre in Champaign, IL. Here is the link to that archived page: https://wayback.archive-it.org/1284/20090226144527/http://www.eiu.edu/~aco/index_files/Page592.htm. The second place it was screened was at the University of Michigan at Michigan Theatre. Here is the link to that archived page: https://wayback.archive-it.org/5476/20110610201202/http://ur.umich.edu/0809/Jan19_09/26.php. Hopefully this helps with the search.