The thing with Korean names is that they may appear the same to you with the spelling. But completely not the same as written in English as in Korean. I can assure you that you got the wrong person on LinkedIn.
No. The guy you're referring to works in Hyundai Dept. Store which is their equivalent to Walmart here in the US. The other guy works with Hyundai Motors. Night and day my friend. I've worked in Korea before and many has the same name in the same company.