How to get special treatment of the exchange rate for dollar investment. You should not exchange won for dollars at a stock firm because exchange fee is to high. I will tell you how to incur low exchage. Do you have a Kookmin Bank account and a Kiwoom Securities account? Then you can get special treament of the exchange rate. Follow the steps below. 1. Running the Kiwoom Securities app, "뱅킹/업무" ..