South Korea's Financial Services Commission has approved new guidelines permitting listed companies and professional investors to trade cryptocurrencies, ending a nine-year ban. Qualified legal entities can now invest up to 5% of their net assets annually in the top 20 cryptocurrencies by market cap on the country's five major exchanges. Approximately 3,500 entities, including listed companies and professional investment firms, will gain market access, with regulatory measures such as staggered execution and order size limits introduced to mitigate risks.