Forex trading is allowed in South Korea. You need to deal with a broker that is authorized to serve residents. Check that the firm follows rules from the national regulator and keeps client money in separate accounts. Read risk and fee disclosures and make sure the terms suit you. Some products and features can have limits for residents. You also face market, platform, and currency risks. If anything is unclear, review the regulator’s guidance and the broker’s legal documents before you open or fund an account.