Discovered a nice track located in Taebaek which is about 6 hours or so away. http://www.racingpark.co.kr/
Unfortunately the website only caters to Koreans and has no translation. Looking at the pictures, it seems they have a nice racing scene with cars ranging from little hatchbacks to World Challenge equivalent cars. Not sure about how they might run any track days but it appears they have some restrictions on what amount of safety gear your car requires, ie. roll cage, FIA rated seat and harness, racing suit, extinguisher, etc. I don’t think I’ll be installing a FIA seat and roll cage while I’m here in Korea, so any hopes of getting some track time here are quickly diminishing.