Last Post: 11:34:32pm, 07/20/2018
Out of current four? I think that's right. From what I read, two of the current four are ethnically Korean, though Krystal is from the U.S. The two who are not ethnically Korean are Taiwanese-American and Chinese from what I see. Out of the original five, I think three were Korean ethnically.
Quite a few K-pop groups have had multiple non-Korean members. Miss A was 50% Korean, 50% Chinese, for example. Also, many Korean members in K-pop groups (as some solo K-pop artists) are Koreans from overseas (especially the United States and Canada), such as Krystal.
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"History is the road map and without it there is no way to navigate the future." - George Wunderlich