South Korea considers 20% cap on exchanges

TLDR

South Korea is moving toward a rule that would cap any major shareholder in a domestic crypto exchange at 20 percent ownership.

1. The government and ruling party have agreed in principle on a 20 percent cap for major shareholders in Korean exchanges, with narrow 34 percent exceptions for new operators.
2. Big platforms like Upbit, Bithumb, Coinone, Korbit and GOPAX all exceed the proposed cap and would need multiyear ownership restructurings if the rule becomes law.
3. The cap is not yet enacted and faces political debate, so the key thing to watch is how it is written into the Digital Asset Basic Act and whether it survives the National Assembly.

Deep Dive

1. What The 20 Percent Cap Actually Is

Reports say South Koreas Financial Services Commission (FSC) and the ruling Democratic Partys digital asset task force have agreed to limit major shareholders in domestic crypto exchanges to 20 percent of equity. This would be written into the countrys broader Digital Asset Basic Act as a governance rule for exchanges viewed as systemically important financial infrastructure. Cointelegraph and The Block both describe the same structure.

There is room for exceptions. Regulators are considering allowing up to 34 percent for new businesses via enforcement decree, using the Commercial Acts 33.3 percent veto threshold as the reference. The current draft envisions a three year grace period from when the law takes effect, with an extra three years for smaller exchanges.

2. How It Hits Major Korean Exchanges And Investors

Ownership at major Korean exchanges is highly concentrated. Upbits chair reportedly holds about 25.52 percent of its parent Dunamu, while Bithumb Holdings owns roughly 73.56 percent of Bithumb, with similarly high stakes at Coinone, Korbit and Binances Korean partner GOPAX. These figures, cited by Cointelegraph and a CoinsKid Community explainer, are all above 20 percent.

If the law passes as proposed, these owners would need to dilute or restructure over several years through secondary sales, new share issues, or mechanisms like voting trusts. That could change who effectively controls key exchanges and may open the door to more institutional or diversified ownership.

3. Motivation, Pushback And What To Watch Next

Regulators frame the cap as a way to reduce governance risk after incidents like Bithumbs large erroneous Bitcoin transfer and to align crypto exchanges with standards for critical financial infrastructure. South Korea has already tightened licensing and background checks on executives and large shareholders as part of this policy shift, as noted by The Block.

Industry group DAXA and some lawmakers warn the rule is unprecedented globally and could hinder innovation, competition and new entrants. The measure still needs to be introduced as a bill and approved in the National Assembly, where opposition and amendments are possible.

Conclusion

South Koreas proposed 20 percent cap targets concentrated control of local exchanges rather than retail activity, signaling a shift toward treating major platforms like regulated financial infrastructure. The real story for crypto markets is how ownership and governance at giants such as Upbit and Bithumb might evolve over the coming years if the cap becomes law and how that could shape competition, innovation and risk management in one of Asias biggest crypto trading hubs.