Today I found the news articles part of Hyundai and Kia, Ssangyong car factories are closed due to the shortage of components.

Because many components are imported from China
(as I mentioned in my previous posts, most of Hyundai/Kia’s family suppliers factories such as Hyundai Kefico are located in China, Viet Nam, Mexico, etc.)
and now a lot of Chinese auto parts manufacturers are temporarily closed now.

Here is an English version article dated 4th Feb. 2020:
http://www.koreaittimes.com/news/articleView.html?idxno=95349

KBS new here :
http://world.kbs.co.kr/service/news_view.htm?lang=e&Seq_Code=151085

CNA News in youtube :

Hyundai Motor to suspend South Korea production as coronavirus disrupts supply chain