It doesn't have a strong international reputation. Try one of these: http://www.eduniversal-ranking.com/business-school-university-ranking-in-south-korea.html

It might have some local credibility but it's not very well-known outside of Korea. It would be much better for your career to do an MBA at a business school with international accreditation. And unlike some other Asian countries, Korea has a number of really good, internationally-accredited MBA programs. Start by researching these:

KAIST - International MBA
Korea University Business School - Global MBA or Korea MBA
Seoul National University - Global MBA
Sungkyukwan University (SKK) - Global MBA
Dongguk University - MBA or the Entrepreneurship MBA

Thanks for the information Ralph.
Do those schools offer internship programs?
I heard Solbridge offers internship programs for the Seniors.