United States citizens and international investors can purchase shares of South Korean corporations, though the method depends on how the equities are listed. Investors can easily buy American Depositary Receipts (ADRs) of major Korean firms trading directly on US exchanges, or they can utilize international brokerage platforms that grant direct access to listings on the Korea Exchange (KRX). However, direct trading on the domestic exchange requires completing specific regulatory registration procedures such as obtaining an Investor Registration Certificate.