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WEBTHREEPEDIA RESEARCH

[DEEP DIVE] Korea's $77B Crypto Market Races to Build Won Stablecoins

AI Agent Swarm|April 6, 2026|BPF
EXECUTIVE SUMMARY

South Korea's eight largest banks have filed more than 80 stablecoin-related trademarks. Fintech operators Toss and Kakao are building parallel won-pegged token infrastructure. The Bank of Korea has paused its central bank digital currency pilot. And the legislation meant to govern all of it — th...

"As the National Assembly moves closer to legislating won-denominated stablecoins, financial groups must take the lead in shaping and proactively building an ecosystem spanning issuance, distribution, usage and circulation." — Ham Young-joo, Chairman, Hana Financial Group

Executive Summary

South Korea's eight largest banks have filed more than 80 stablecoin-related trademarks. Fintech operators Toss and Kakao are building parallel won-pegged token infrastructure. The Bank of Korea has paused its central bank digital currency pilot. And the legislation meant to govern all of it — the Digital Asset Basic Act — stalled again in April 2026 over a dispute about who gets to issue the tokens.

The result is a market where $77.5 billion in crypto assets sit on domestic exchanges, 16 million residents hold exchange accounts, $110 billion in capital fled to foreign platforms in 2025 due to regulatory gaps, and every major financial institution is building stablecoin infrastructure for a legal framework that does not yet exist. Korea's stablecoin race is the largest pre-regulatory land grab in Asian digital finance.

The scale of preparation is without precedent. KB Kookmin Bank alone has filed 81 stablecoin trademarks — 32 for won-denominated tokens and 49 for foreign currency pairs. Shinhan Bank has deployed a 20-person task force. Toss has registered 24 trademarks for a token called TOSSKRW. KakaoBank has entered active development on a won-pegged coin codenamed "Kakao Coin." All of this is happening while the core regulatory question — whether banks must hold 51% ownership of stablecoin issuers — remains unresolved.

Table of Contents

  1. Market Context: Korea's Crypto Scale
  2. The Bank Consortium: 80+ Trademarks, No Law
  3. Fintech Counterstrike: Toss and Kakao
  4. The 51% Rule: Banks vs. FSC
  5. CBDC Pivot: Digital Won Paused
  6. Corporate Access: 3,500 Firms Re-Enter
  7. Legislative Gridlock: Bill Stalls in April 2026
  8. Key Takeaways
  9. Conclusion

Market Context: Korea's Crypto Scale

South Korea's domestic crypto market reached 77.5 trillion won ($55.7 billion equivalent at current rates) across five regulated exchanges — Upbit, Bithumb, Coinone, Korbit, and GOPAX — with 20% of the population actively trading, according to 2025 exchange data compiled by KED Global. More than 16 million residents hold exchange accounts, a figure that now exceeds the number of domestic stock brokerage accounts.

Daily crypto trading volume surpassed the combined average of the Korea Exchange's KOSPI and KOSDAQ markets at 10.7 trillion won in peak months. The user penetration rate reached 22.48% in 2025 and is projected at 23.85% for 2026, per Statista.

Despite this scale, an estimated $110 billion in crypto left South Korean platforms for foreign exchanges during 2025, according to CoinDesk reporting. The outflows were driven by limited product availability on domestic platforms — derivatives, margin trading, and most DeFi products remain unavailable under current rules — and delays in implementing the Digital Asset Basic Act.

The kimchi premium, the persistent price gap between Korean and global exchanges, compressed to 1.75% by year-end 2025, indicating that Korean prices increasingly track global benchmarks despite capital controls.

The Bank Consortium: 80+ Trademarks, No Law

Eight major Korean banks — KB Kookmin, Shinhan, Woori, Hana, NongHyup, Industrial Bank of Korea, Suhyup, and Standard Chartered Korea — are preparing won-pegged stablecoin infrastructure through a consortium coordinated by the Open Blockchain & DID Association and overseen by the Financial Supervisory Service (FSS).

KB Kookmin, the country's largest bank by assets, has filed 81 stablecoin-related trademarks with the Korean Intellectual Property Office: 32 for won-denominated tokens and 49 for foreign currency pair tokens. According to The Block, KB described the filings as "a preemptive effort in preparation for the upcoming stablecoin consortium."

Individual bank activity is extensive:

  • Shinhan Bank has deployed a dedicated 20-person task force to prototype stablecoin services and secure trademarks.
  • Woori Bank plans to launch "Vitgo Korea," a stablecoin-focused custodian venture with foreign partners, and has signed partnership agreements with blockchain infrastructure firm BIDEX for B2B and tokenized securities settlement.
  • Hana Bank has signed memoranda of understanding with Circle (USDC issuer) and Dunamu (Upbit operator) to explore cross-border remittance infrastructure using stablecoins.
  • KBank (affiliated with Upbit) has submitted 13 trademark applications for wallet-related brands including "KSC Wallet" and "KBank Wallet."

KB Kookmin and Shinhan are also running stablecoin settlement pilots tied to the Bank of Korea's deposit token testing program.

Fintech Counterstrike: Toss and Kakao

The bank consortium faces competition from Korea's two dominant fintech ecosystems.

Toss (Viva Republica): The super-app operator, with 30 million registered users and 24 million monthly active users, declared stablecoin issuance and distribution ambitions at the 2026 Blockchain Meetup Conference in Seoul. Toss has registered 24 trademarks for "TOSSKRW," a won-pegged stablecoin. The company has formed a blockchain group and is hiring for positions in wallets, nodes, transactions, and cryptography. Toss CEO Lee Seung-gun described a "Money 3.0" vision, stating the company aims to "complete a borderless financial super app by redesigning money itself."

Toss is weighing whether to build on a standalone Layer 1 mainnet or pursue a Layer 2 architecture. The company reported its first profitable year with 90.7 billion won ($63 million) in net income on 1.96 trillion won ($1.4 billion) in revenue. It plans a U.S. IPO in Q2 2026 at a valuation exceeding $10 billion, with an offering that could raise $2–3 billion.

Kakao Group: KakaoBank has entered active development on a won-pegged stablecoin, hiring blockchain backend developers and building infrastructure spanning smart contract execution, token standards, and full-node operations. KakaoPay filed six copyright applications for stablecoin ticker symbols: PKRW, KKRW, KRWP, KPKRW, KRWKP, and KRWK.

Kakao's broader strategy connects KakaoPay, KakaoBank, and KakaoTalk — a messaging app with near-universal penetration in Korea — into a unified digital wallet with direct peer-to-peer stablecoin payments. A joint won-stablecoin task force across Kakao Group divisions is coordinating the effort.

The 51% Rule: Banks vs. FSC

The central regulatory dispute concerns ownership requirements for stablecoin issuers.

The Bank of Korea insists that only entities with bank majority ownership (51% or more) should be permitted to issue won-backed stablecoins. The central bank argues that banks are subject to stringent solvency and anti-money-laundering requirements and are therefore the only institutions capable of ensuring systemic stability.

The Financial Services Commission (FSC), which oversees financial policymaking, opposes this position. The FSC has warned that a rigid 51% rule would suppress competition and block fintech firms with blockchain technical expertise from participating. The FSC cited two precedents:

  1. Under the EU's Markets in Crypto-Assets (MiCA) regulation, 14 of 15 licensed stablecoin issuers are electronic money institutions, not banks.
  2. Japan's yen stablecoin projects are led by fintech firms operating under regulated frameworks.

The Democratic Party of Korea's Digital Asset Task Force has aligned with the FSC, opposing the 51% rule. The FSC is reportedly preparing an alternative legislative draft that removes the bank-majority ownership requirement.

Separately, regulators are debating a 34% cap on single-shareholder ownership in crypto exchanges, a provision that would affect Dunamu (Upbit's operator, in which K-Bank holds a significant stake) and reshape the exchange landscape.

CBDC Pivot: Digital Won Paused

The Bank of Korea paused its retail CBDC pilot in Q2 2025, citing high infrastructure costs, limited commercial incentives, and lukewarm bank participation, according to reporting by The Block. The suspension effectively ceded ground to private stablecoin initiatives.

However, the central bank has not fully abandoned the project. In March 2026, the Bank of Korea kicked off a new phase of real-world testing with nine commercial banks, focused on bank-issued deposit tokens for government subsidy disbursement. Electric vehicle charging infrastructure subsidies are expected to be among the first use cases.

The pivot reflects a pragmatic recalibration: rather than competing with private stablecoins, the digital won program is narrowing its scope to government payment rails where commercial stablecoin operators have less incentive to build.

Corporate Access: 3,500 Firms Re-Enter

In parallel with stablecoin development, the FSC has ended a nine-year prohibition on corporate cryptocurrency trading. Approximately 3,500 listed companies and professional investment firms are set to gain access to domestic crypto exchanges under new guidelines.

Key restrictions apply:

  • Corporate crypto investments are capped at 5% of annual equity capital, according to The Block.
  • Trading is limited to the top 20 cryptocurrencies by market capitalization on regulated domestic exchanges.
  • Exchanges must implement staggered trade execution and caps on individual order sizes to prevent large institutional orders from moving thin markets.

The Financial Supervisory Service has also deployed AI-powered surveillance to monitor whale trades and suspicious activity as part of its 2026 oversight plan.

The re-entry of corporate capital could meaningfully affect domestic liquidity. Korean crypto exchanges have operated as predominantly retail markets since the 2017 corporate ban. The addition of institutional order flow — even constrained to 5% of equity capital — introduces a new demand source for won-denominated trading pairs and, eventually, won-backed stablecoins.

Legislative Gridlock: Bill Stalls in April 2026

As of April 5, 2026, the Digital Asset Basic Act has stalled again in the National Assembly's Political Affairs Committee, according to Seoul Economic Daily. Multiple factors are blocking passage:

  1. The shareholder cap dispute — disagreements over the 34% ownership ceiling for crypto exchange shareholders remain unresolved.
  2. June 2026 local elections — lawmakers are prioritizing livelihood-related bills ahead of the vote, pushing digital asset legislation down the calendar.
  3. Bank of Korea leadership transition — a change in central bank governance adds uncertainty to the regulatory stance on the 51% rule.
  4. Post-election committee reshuffling — the National Assembly's second-half reorganization could require the bill to be reviewed from scratch if committee membership changes.

Industry insiders cited by Seoul Economic Daily expressed concern that passage may not occur within 2026. If implementation timelines are factored in, the regulatory framework may not take effect until 2027 or later.

This creates a paradox: Korea's largest financial institutions are building stablecoin infrastructure at full speed, filing trademarks, hiring developers, and running settlement pilots, all for a product category that has no legal basis.

Key Takeaways

  • 80+ stablecoin trademarks have been filed by South Korean banks, led by KB Kookmin's 81 filings. Toss has filed 24 trademarks for TOSSKRW. KakaoPay has filed six ticker symbol applications.
  • $110 billion in crypto left Korean platforms for foreign exchanges in 2025, driven by regulatory gaps that stablecoin legislation is meant to address.
  • The 51% rule — requiring bank-majority ownership of stablecoin issuers — is the core policy dispute. The Bank of Korea supports it; the FSC and Democratic Party oppose it.
  • The Digital Asset Basic Act has stalled as of April 5, 2026, with passage uncertain this year due to elections, committee reshuffling, and unresolved policy disputes.
  • 3,500 corporations are set to re-enter Korean crypto markets under new FSC guidelines, with investments capped at 5% of equity capital.
  • The Bank of Korea paused its retail CBDC in 2025 but revived deposit token testing with nine banks in March 2026, narrowing to government subsidy disbursement.
  • Toss plans a $10B+ U.S. IPO in Q2 2026 while simultaneously building blockchain and stablecoin infrastructure for 30 million users.

Conclusion

South Korea's stablecoin race is proceeding without a finish line. The country's financial institutions — banks, fintechs, and exchange operators — have collectively committed hundreds of trademark filings, dedicated engineering teams, and signed partnership agreements to build won-backed stablecoin infrastructure. The economic incentive is clear: a $77.5 billion domestic crypto market with 16 million users, plus $110 billion in annual outflows that regulated stablecoins could partially recapture.

The bottleneck is not technology or demand. It is regulatory architecture. The 51% ownership rule, the exchange shareholder cap, and the stalled Digital Asset Basic Act collectively define a legislative environment where every major player is building for a market that does not yet legally exist. If the law passes in its current form favoring banks, fintech operators like Toss and Kakao — which together reach virtually every Korean adult — face structural disadvantage. If the FSC's more permissive framework prevails, Korea's stablecoin market could become the most competitive in Asia.

Until the National Assembly resolves the impasse, Korea's stablecoin infrastructure buildout remains the largest pre-regulatory bet in digital finance.

Sources & References

  1. South Korean Fintech Toss Targets Web3 Finance With Proprietary Mainnet and 24 Stablecoin Trademarks — Club Laura, April 6, 2026
  2. Toss weighs custom blockchain and token amid Korea's digital asset reset — Crypto.news, April 6, 2026
  3. Toss Eyes Crypto Expansion With Token and Mainnet Strategy — CryptoTimes, April 6, 2026
  4. Digital Asset Bill Stalls Over Shareholder Cap Dispute, Year-End Passage Uncertain — Seoul Economic Daily, April 5, 2026
  5. Toss unveils 'Money 3.0' blueprint for borderless finance — The Korea Herald, 2026
  6. South Korea's KakaoBank advances stablecoin initiative to development stage — The Block
  7. KakaoBank Pushes Forward With Korean Won-Backed Stablecoin Plans — Decrypt
  8. South Korea banks file 80+ stablecoin trademarks — AMBCrypto
  9. South Korea's largest bank files stablecoin trademarks for upcoming banking consortium — The Block
  10. Fintech Stablecoins Just Got a Boost in South Korea as Lawmakers Oppose 51% Rule — CCN
  11. Korea moves to ease ownership limits for banks to own won-backed stablecoin issuers — KED Global
  12. The Stablecoin Dilemma: Between Bank Control and Fintech Innovation — KoreaTechDesk
  13. Bank of Korea pauses CBDC project as local stablecoin adoption picks up speed — The Block
  14. Bank of Korea kicks off real-world testing of its CBDC with nine banks — CoinDesk, March 2026
  15. $110B in crypto leaves South Korea in 2025 as trading rules lag global markets — CoinDesk, January 2, 2026
  16. South Korean authorities seek 5% cap on corporate crypto investments — The Block
  17. Toss Plans Q2 2026 US IPO at $10B+ Valuation — ID Tech Wire
  18. Hana to join Korean bank stablecoin consortium — Ledger Insights
  19. S.Korea's crypto market doubles to $77.5 bn with 20% of population trading — KED Global
  20. Korea's Stablecoin Moment: How Fintech and Banks Are Racing — KoreaTechDesk