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Hana Bank’s Dunamu deal draws scrutiny as regulators debate tax regime

Reported by Cryptopolitan
May 18, 2026· 3 min read
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Key Takeaways
  • • Hana Bank acquired a 6.55% stake in Dunamu (operator of South Korea's largest crypto exchange, Upbit) for approximately 1 trillion won ($669–672 million), becoming the fourth-largest shareholder in the exchange operator.
  • • South Korea's Financial Services Commission (FSC) is investigating whether the transaction violates a 2017 ban on financial institutions holding equity stakes, purchasing, or trading digital assets, despite the deal being structured as an acquisition of Kakao Investment's existing position rather than a direct share purchase.
  • • The FSC views the transaction as a crypto sector investment subject to the same separation rules regardless of its corporate structure, signaling strict enforcement of restrictions on regulated financial firms entering the digital asset business.
  • • Hana Bank and Dunamu signed a memorandum of understanding to develop new financial services linking traditional finance and digital assets, with the deal scheduled to close on June 15, 2026.
  • • Other Korean financial groups including Mirae Asset Group and Korea Investment Securities have adopted alternative structures (using subsidiaries and consulting firms rather than regulated banking arms) to navigate the same regulatory restrictions on crypto investments.
Summary
Hana Bank's planned acquisition of a significant equity stake in Dunamu, South Korea's largest cryptocurrency exchange operator, has triggered regulatory scrutiny that exposes deeper tensions between the country's banking sector and its evolving crypto oversight framework. The transaction, valued at approximately 1 trillion won ($669–672 million), would grant Hana Bank a 6.55% stake and make it Dunamu's fourth-largest shareholder—representing the largest such investment by a South Korean bank into the digital asset sector.

The core regulatory issue centers on a longstanding ban enacted in 2017 that prohibits financial companies and corporations from trading crypto assets. This restriction was subsequently expanded to encompass any holding, purchase, collateral arrangement, or equity investment by regulated financial firms in the digital asset sector. South Korea's Financial Services Commission (FSC) is now reviewing whether Hana Bank's deal violates these separation rules. Critically, an FSC official indicated that the agency views the transaction as a crypto sector investment regardless of its corporate structure—the fact that Hana Bank is acquiring Kakao Investment's existing Dunamu position rather than purchasing shares directly from the company does not shield the transaction from regulatory scrutiny under the established standard.

This enforcement posture reflects a broader regulatory hardening in South Korea following operational failures and compliance gaps at major crypto exchanges. The FSC's position stands in contrast to the workarounds pursued by other major Korean financial institutions. Mirae Asset Group, for instance, completed its acquisition of the exchange operator Korbit through a consulting firm subsidiary rather than through its regulated brokerage arm. Similarly, Korea Investment Securities has adopted a cautious approach while exploring a stake in Coinone alongside international exchange operator OKX.

Beyond the compliance question, Hana Bank and Dunamu have signed a memorandum of understanding to develop new services linking traditional finance with digital assets, signaling strategic intent to deepen institutional involvement in the crypto ecosystem. The deal is scheduled to close on June 15, 2026, pending regulatory clearance. The transaction timing coincides with South Korea's advancement of a Digital Asset Basic Act and implementation of tighter security rules for crypto exchanges, indicating the government is simultaneously pursuing regulatory formalization and enforcement of existing prohibitions on financial institution participation in the sector.

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Sources

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Cryptopolitan Hana Bank’s Dunamu deal draws scrutiny as regulators debate tax regime