Spacing
In the South, the rules of spacing are not very clearcut, but in the North, these are very precise. In general, compared to the North, the writing in the South tends to include more spacing. One likely explanation is that the North remains closer to the Sinitic orthographical heritage, where spacing is less of an issue than with a syllabary or alphabet such as Hangul. The main differences are indicated below.
Read more about this topic: Languages Of North Korea