QS University Rankings provides an overview of top university rankings in Asia including Korean universities, so students who are planning to study abroad to Korea can refer to.
QS homepage: http://www.topuniversities.com/
KAIST’s ranked 2nd, Seoul National University’s ranked 4th in Asia.
POSTECH ranked 9th. Yonsei University 16th, Sungkyunkwan University 17th, Korea University ranked 18th.
Hanyang University 29th, Kyung Hee University 37th, Ewha Womans University ranked 39th.
If you are planning to study abroad in Korea and looking for detailed information about top universities in Korea, QS website is one of the options.