Is Soju Kosher? Does it require a hekhsher? At first glance, it appears to be no different from beer and distilled spirits that are consumed without a hekhsher, but this is not entirely clear. Apparently it is difficult to find in the US with a hekhsher. https://en.wikipedia.org/wiki/Soju[https://en.wikipedia.org/wiki/Soju]
Like you said it is not entirely clear. Over the next while we’ll try to get a clear picture