Is there anyone using a Korean exchange? If yes, I want to know why. I am wondering if it is because there is a Korean project that particularly interested in or is it to leverage the kimchi premium generated on Korean exchanges. kimchi premium is the gap in crypto prices in Korean exchanges compared to other global exchanges as high as 6~7%. For example, Bitcoin might be listed at a 7% higher price on the Korean exchange.
Are you talking about arbitrage trading here? Naturally there will be a gap, but I doubt that you can exploit it as you have to be very quick, better to set up a bot to do such kind of trades. As far as Korean exchange though, yes there are a lot and some of them are reputable, but I'm not sure if you can create an account as they mostly require KYC, and they are very tough for non-Korean accounts.