Seoul Court Overturns Dunamu Crypto Exchange Suspension in South Korea

In a significant legal win for South Korea’s largest crypto exchange operator, Dunamu, the Seoul Administrative Court has canceled the Financial Intelligence Unit’s (FIU) three-month partial business suspension.

The sanction, initially imposed over alleged Anti-Money Laundering (AML) violations, would have restricted new Upbit users from transferring digital assets.

The court ruled that the FIU lacked clear regulatory guidance, particularly for transactions under 1 million won (around $675), weakening the foundation for the enforcement action.

Court Highlights Lack of Regulatory Clarity

The court emphasized that while rules exist for large transactions, the guidelines for smaller transfers were vague.

Dunamu had implemented its own compliance measures, and the court noted that even if these were imperfect, it could not conclusively prove intent or gross negligence.

This ruling questions the FIU’s authority to impose stringent AML sanctions without detailed instructions, marking a rare pushback against Korea’s financial regulator.

Background of the FIU Sanction

The FIU imposed the partial suspension on February 25, 2025, following an on-site inspection.

Officials claimed Dunamu had allowed transactions with unregistered overseas virtual asset providers (VASPs) and failed to meet customer due diligence requirements.

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The investigation reportedly flagged over 600,000 suspected Know Your Customer (KYC) violations.

Dunamu quickly filed a lawsuit and requested an injunction to halt enforcement, which the court granted on March 27, 2025, allowing Upbit to continue onboarding new users while the case proceeded.

Implications for South Korean Crypto Regulation

This ruling could have far-reaching effects on the country’s cryptocurrency ecosystem.

By emphasizing that vague regulations cannot serve as the basis for severe penalties, the decision may limit the FIU’s future actions unless it clarifies AML rules.

Exchanges could argue for greater flexibility in compliance measures, potentially reshaping enforcement practices in South Korea’s booming crypto market.

What’s Next for Dunamu and FIU

The case signals that Dunamu may now operate with reduced regulatory pressure in certain areas, but broader AML compliance remains a critical concern.

The FIU is expected to review and possibly refine its guidance for exchanges to strengthen its ability to enforce AML measures in a legally sound way.

Meanwhile, other crypto platforms may look to Dunamu’s precedent when challenging future sanctions.

Summary

The Seoul Administrative Court has sided with Dunamu, overturning a three-month partial suspension imposed by the FIU for alleged AML violations.

The ruling highlights a lack of regulatory clarity for small transactions and could limit the FIU’s enforcement powers unless rules are made more explicit.

Dunamu can continue onboarding new users while the FIU revises its guidance.

Bulleted Takeaways

• Seoul court cancels Dunamu’s three-month partial business suspension.
• FIU’s sanction targeted Upbit’s AML compliance and KYC violations.
• Court cited lack of clear guidance for transactions below 1 million won (~$675).
• Decision may limit FIU’s ability to impose strict penalties without detailed rules.
• Dunamu can continue onboarding new users while the FIU refines its regulatory framework.