South Korea's $10B Question: Who Will Build The Won Stablecoin For 16M Crypto Traders?

South Korea has more than 16 million cryptocurrency account holders, roughly a third of its entire population, collectively sitting on over 102 trillion won ($70 billion) in digital assets.

Yet there is no legal way for any of them to trade, settle, or remit using a stablecoin denominated in their own currency.

That gap - between one of the world's most active retail cryptocurrency markets and the complete absence of a regulated won-pegged token - has become the single most contested issue in Asian digital finance. The race to fill it now involves domestic tech conglomerates, the country's four largest banking groups, the world's two biggest stablecoin issuers, and a blockchain platform born from the merger of South Korea's two internet titans.

The stakes extend well beyond a new token listing. South Korean investors transferred more than $110 billion in cryptocurrency to foreign exchanges in 2025 alone, driven by restrictive domestic trading rules and the dominance of U.S. dollar-denominated stablecoins like Tether (USDT) and Circle (USDC).

Capital controls that once kept the won market insulated have instead created the Kimchi Premium - a persistent price gap between Korean and global exchanges that periodically surges above 10% - while funneling arbitrage profits to foreign traders. A regulated KRW stablecoin could, in theory, deepen won-denominated liquidity, reduce reliance on dollar-backed tokens, and give regulators a tool to monitor capital flows they currently cannot track. But the theory depends entirely on what kind of framework South Korea's feuding regulators ultimately approve.

The country's long-awaited Digital Asset Basic Act (DABA), first introduced to the National Assembly in June 2025, was supposed to settle these questions. Instead, it has become the focal point of an escalating dispute between the Bank of Korea (BOK) and the Financial Services Commission (FSC) over who should be permitted to issue won-pegged stablecoins - banks alone, or fintech companies and tech conglomerates as well.

That dispute has delayed the legislation repeatedly, with full implementation now unlikely before 2027. In the interim, every major player in Korean finance has begun building stablecoin infrastructure anyway, betting that when the regulatory window opens, the first movers will capture a market with few global parallels.

Why South Korea Is Not Like Other Markets

To understand why a KRW stablecoin carries such weight, it helps to recognize just how unusual South Korea's cryptocurrency market is by global standards. As of early 2025, data submitted to the National Assembly showed that more than 16.2 million unique users held accounts across the country's five major exchanges - Upbit, Bithumb, Coinone, Korbit, and Gopax.

A separate survey by the Korea Financial Consumer Foundation, reported by The Herald Business in early 2025, found that 50% of South Korean adults had direct experience investing in cryptocurrency assets, placing digital tokens second only to equities as the country's most popular investment class.

This is not a market dominated by institutional players or sophisticated traders. South Korea's cryptocurrency economy is overwhelmingly retail-driven, with individual investors accounting for the vast majority of daily volume on domestic exchanges. Upbit alone commands more than 80% of domestic trading activity and regularly ranks among the world's top five exchanges by volume.

In the first quarter of 2024, global trading volume denominated in Korean won exceeded that of the U.S. dollar, a feat no other non-dollar fiat currency has managed consistently.

Meanwhile, 98% of South Koreans already use digital payment systems in their daily lives, through platforms like Kakao Pay, Naver Pay, and Toss. The infrastructure for cashless commerce is essentially universal. What does not yet exist is a bridge between that digital payments ecosystem and the on-chain economy where cryptocurrency trading, decentralized finance, and cross-border settlement actually occur.

The Kimchi Premium and the Dollar Problem

The absence of a won-denominated stablecoin does not simply represent a missing product. It creates concrete structural distortions in how South Korean investors interact with global cryptocurrency markets. The most visible of these is the Kimchi Premium - the price gap between cryptocurrency assets on Korean exchanges and their equivalents on international platforms like Binance and Coinbase.

The premium exists because South Korea's capital controls, governed by the Foreign Exchange Transactions Act, restrict the efficient movement of fiat currency across borders.

When domestic demand spikes - as it did in February 2025, when Bitcoin (BTC) traded at a 12% premium on Korean exchanges - arbitrageurs cannot quickly move won offshore to equalize prices. The result is a persistent, exploitable gap that benefits foreign traders with access to dollar-denominated liquidity while penalizing domestic investors with higher effective purchase prices.

Dollar-backed stablecoins have only deepened this dynamic. USDT and USDC now account for massive and growing trading volume on Korean exchanges, with BOK figures showing 56.95 trillion won in stablecoin trading volume during the first quarter of 2025 alone - a threefold rise from 17.06 trillion won in the third quarter of 2024.

Korean traders who want to access decentralized finance protocols, cross-border remittance, or offshore exchange products must first convert won to dollars, then purchase a dollar stablecoin, absorbing exchange rate risk and hidden fees at every step.

President Lee Jae-myung, who took office following the June 2025 election, has made this dollar dependence a central policy concern. His administration paused the BOK's central bank digital currency (CBDC) pilot in June 2025, shifting policy focus toward privately issued won-backed stablecoins as the preferred path for digital currency integration.

The reasoning is straightforward: if Korean capital is going to flow into digital assets regardless, Seoul would prefer that flow to be denominated in won and subject to domestic oversight rather than routed through dollar-denominated tokens controlled by foreign issuers.

The Regulatory Standoff

The legislative vehicle for this ambition is the Digital Asset Basic Act, but the act itself has become a case study in regulatory gridlock. Three separate bills addressing stablecoin regulation are currently under review in the National Assembly: the DABA itself, introduced by representative Byung-deok Min in June 2025; the Value-Stabilised Assets Act; and the Act on Payment Innovation through Stable Digital Assets, introduced by representative Eun-hye Kim in July 2025.

The central conflict is not between these bills but between the two agencies that would implement them. The BOK insists that only consortia where domestic banks hold at least a 51% ownership stake should be permitted to issue won-pegged stablecoins.

The central bank frames this as a monetary sovereignty issue: stablecoins that achieve wide circulation could function as de facto money substitutes, and allowing non-bank entities to create them would, in the BOK's view, undermine its control over monetary policy. Governor Chang-yong Rhee has warned that won-denominated stablecoins could circumvent foreign exchange rules and heighten volatility.

The FSC takes the opposite view. It has cited the European Union's MiCA regulation, under which 14 of 15 licensed stablecoin issuers are electronic money institutions rather than banks, and Japan's fintech-led yen stablecoin projects as evidence that rigid bank-only requirements suppress competition without improving stability.

The ruling Democratic Party of Korea (DPK) has largely aligned with the FSC. Lawmaker Ahn Do-geol said that a majority of participating experts questioned whether the BOK's proposal could deliver innovation or generate strong network effects, adding that stability concerns could be addressed through regulatory and technological measures.

The FSC missed a December 2025 government deadline to submit a consolidated bill, acknowledging that it needed more time to coordinate with other agencies.

The ruling party has committed to publishing legislation by early 2026, but the U.S. Commerce Department's International Trade Administration estimates that at least two years of subordinate rulemaking will follow passage, placing full implementation around 2027.

What is already clear from all three bills is that stablecoin issuers will face substantial requirements regardless of structure. The proposed frameworks mandate 100% reserve backing in bank deposits or government securities, segregation of customer funds, prohibition of interest payments to stablecoin holders, and registration with the FSC. Foreign-issued stablecoins would be required to establish a local branch or subsidiary in South Korea and obtain a domestic license to operate as payment instruments, though they could still be traded on exchanges under a brokered transaction model.

The Naver-Upbit Megadeal

While regulators debate, South Korea's corporate landscape has already begun reorganizing around stablecoin ambitions. The most consequential move came in November 2025, when Naver Corp. announced the acquisition of Dunamu Inc., the operator of Upbit, in an all-stock deal valued at approximately $10.3 billion.

Under the terms disclosed in a regulatory filing, Naver Financial Corp., the company's fintech subsidiary, will issue 2.54 new shares for every Dunamu share, making Dunamu a wholly-owned subsidiary.

The combined entity would serve more than 34 million payment users through Naver Pay and approximately 8 million active cryptocurrency traders through Upbit, generating around 1 trillion won ($714 million) in annual operating profit - comparable to major Korean banks.

Naver's CEO Soo Yeon Choi described the deal as arriving at a critical inflection point where blockchain mass adoption coincides with the rise of agentic AI. Dunamu Chairman Song Chi-hyung said the three companies intend to design next-generation financial infrastructure fusing AI and blockchain. The two entities announced plans to invest 10 trillion won over five years to expand Korea's blockchain, Web3, and AI technology ecosystem.

Market analysts have been more specific about the immediate strategic logic. The merger gives Naver Financial a direct path into stablecoin issuance: Upbit's exchange infrastructure combined with Naver Pay's payment rails creates the distribution network a won stablecoin would need to achieve meaningful adoption.

Shareholder approval is scheduled for May 2026, with the transaction expected to close by late June 2026.

Kakao's Parallel Play

Kakao Corp., South Korea's dominant internet conglomerate and the operator of the KakaoTalk messaging platform used by over 49 million monthly active users, has been building its own stablecoin infrastructure through a different route. KakaoBank, the group's banking affiliate, advanced its stablecoin initiative to the development stage in late 2025, reportedly building smart contract FX settlement systems and backend digital asset management tools, according to Seoul-based financial outlet Newspim.

The technical foundation for Kakao's stablecoin ambitions runs through the Kaia blockchain, a public ledger formed in 2024 from the merger of Kakao's Klaytn network and LINE's Finschia network. Kakao and its payments subsidiary Kakao Pay sit on Kaia's governance council.

In August 2025, the Kaia DLT Foundation registered four trademark applications with the Korean Intellectual Property Office - "KRWGlobal," "KRWGL," "KRWKaia," and "KaKRW" - all oriented around a won-pegged stablecoin. KakaoPay separately filed six additional copyright applications for ticker symbols combining Kakao or KakaoPay with KRW.

Sangmin Seo, chairman of the Kaia DLT Foundation, told Decrypt that discussions around stablecoins are "extremely sensitive right now" and that counterparties have requested strict confidentiality.

He confirmed only that Kaia is in talks with several teams in Korea about a KRW stablecoin proof of concept. Separately, Seo said in September 2025 that Kaia's goal is to serve as the default blockchain platform for any party moving ahead with a Korean won-pegged stablecoin.

Kaia and LINE NEXT have also announced "Project Unify," a stablecoin-powered super app designed to support stablecoins pegged to multiple Asian currencies including won, dollar, yen, Thai baht, and others. The beta was slated for late 2025.

The competitive logic is transparent: Kakao's ecosystem reach - messaging, payments, banking, ride-hailing, and commerce - gives it a distribution advantage that purely financial institutions cannot match. As one analyst told Decrypt, "Unlike other banks, Kakao owns the country's biggest chat app and a major payment system. They can put stablecoins right where people already spend their time."

Foreign Issuers at the Gate

Circle and Tether Holdings have not waited for legislative clarity to begin positioning in South Korea. In August 2025, executives from both firms met with the CEOs of South Korea's four largest financial groups - Shinhan Financial Group, Hana Financial Group, KB Financial Group, and Woori Bank - to discuss potential partnerships involving the distribution of dollar-pegged stablecoins and the issuance of a won-backed token.

Circle President Heath Tarbert met with BOK Governor Lee Chang-yong, the chairmen of Shinhan and Hana, and executives from cryptocurrency exchanges including Upbit. He told local press that Koreans should have access to stablecoins denominated in their own currency and that there is no reason not to pursue a KRW-denominated stablecoin as long as it is properly regulated.

Hana Bank has signed memoranda of understanding with Circle and Dunamu to explore cross-border remittance infrastructure. Speculation that Circle reached a stablecoin-related deal with Hana Bank has not been officially confirmed.

Both firms have also filed trademark applications in South Korea. Circle and Tether have registered marks including USDC, EURC, KRWT, and WON TETHER with Korean intellectual property authorities. These filings do not guarantee imminent product launches, but they establish legal footholds that would be needed for market entry once regulations stabilize. Under the proposed DABA framework, foreign issuers would need to establish a Korean subsidiary and obtain an FSC license to offer stablecoins as payment instruments.

The foreign issuers' advantage is existing scale and credibility. USDT and USDC together account for the vast majority of global stablecoin volume, and their established liquidity pools make them the default tokens for cross-border settlement and DeFi access. The risk for Korean regulators is that overly restrictive localization requirements could simply entrench dollar-stablecoin dominance further by making KRW alternatives slower to launch.

The First Movers: KRW1 and KRWIN

While the legislative debate continues, the private sector has already produced South Korea's first won-pegged stablecoin pilots. In September 2025, digital asset custodian BDACS launched KRW1 on the Avalanche blockchain in partnership with Woori Bank. Each KRW1 token is fully collateralized with Korean won held in escrow at Woori Bank, with real-time API integration providing transparent proof of reserves.

BDACS confirmed that it completed a full proof of concept validating the technical viability of KRW1, but the token has not yet entered public circulation.

The company trademarked the KRW1 brand as early as December 2023, building infrastructure ahead of formal regulations. BDACS CEO Harry Ryoo called the token a "foundational asset for the digital economy," though it remains in pilot status pending regulatory approval.

An earlier pilot, KRWIN, was launched in August 2025 by entertainment platform fanC and software firm Initech. Unlike KRW1, KRWIN was confined to internal testing and designed to validate basic transferability rather than serve as a payment instrument.

Korean banks have also been running their own experiments. KB Financial and Shinhan Bank are conducting stablecoin settlement pilots tied to the BOK's now-suspended CBDC project. Woori Bank, through its partnership with BDACS, is testing business-to-business and tokenized securities settlement using KRW-backed tokens. These pilots demonstrate technical readiness but cannot scale without legislative authorization.

What a KRW Stablecoin Would Actually Change

For the 98% of South Koreans who already use digital payments daily, the practical impact of a won-pegged stablecoin depends on what use cases it enables beyond what existing infrastructure already provides. This is not a trivial question, and skeptics have been direct about the challenge.

Min Jung, senior analyst at quantitative trading firm Presto, noted that the challenge for KRW stablecoins is "the lack of clear, compelling use cases compared to dollar stablecoins." South Korea's existing payment infrastructure - Kakao Pay, Naver Pay, Toss - already provides near-instant settlement for domestic transactions. A won stablecoin does not make buying coffee faster or easier than tapping a smartphone.

Jinsol Bok, research lead at blockchain research firm Four Pillars, went further, cautioning that KRW stablecoins are "actually quite likely to accelerate capital outflows." The logic: by making it easier to move won-denominated value on-chain, a KRW stablecoin could function as a frictionless off-ramp for capital that currently faces cumbersome foreign exchange procedures.

For countries outside the United States, Bok argued, removing FX controls through stablecoin rails tends to accelerate rather than contain the outflow of domestic capital.

The case for a KRW stablecoin is stronger in areas where existing infrastructure falls short. Cross-border remittance from South Korea currently involves significant fees and multi-day settlement through correspondent banking networks.

A won-pegged stablecoin settled on a public blockchain could reduce both cost and time to near-zero. Card-based domestic payments typically face one-to-two-day settlement delays between merchants and banks; stablecoin-based settlement could occur in real time, reducing working capital requirements for businesses.

The interoperability argument is also relevant. South Korea's digital payments ecosystem is currently fragmented across multiple closed platforms. A won stablecoin operating on a public blockchain like Kaia or Avalanche could serve as a common settlement layer across different applications, enabling value transfer between currently siloed systems. For decentralized finance, a KRW stablecoin would let Korean users interact with on-chain lending, borrowing, and yield protocols without first converting to dollars - eliminating a step that introduces both cost and exchange-rate risk.

The Risks Nobody Wants to Name

The most important risk surrounding a KRW stablecoin is one that cuts against the interests of every player involved: the possibility that even a well-designed won-pegged token might simply fail to attract meaningful adoption.

Dollar stablecoins dominate global cryptocurrency markets for a reason. They offer universal liquidity, broad exchange support, and serve as the default unit of account for DeFi protocols, cross-border settlement, and institutional trading. A KRW stablecoin, by contrast, would be useful primarily within South Korea's domestic market and among Korean diaspora communities. Its cross-border utility would be limited unless multiple Asian countries simultaneously develop interoperable stablecoin frameworks - which is precisely what Kaia's Project Unify aims to test, but which remains hypothetical.

There is also the memory of Terra and Luna, the algorithmically stabilized tokens created by South Korean entrepreneur Do Kwon whose collapse in 2022 erased roughly $40 billion in value and devastated Korean retail investors in particular.

While a fully reserve-backed KRW stablecoin would be structurally different from Terra's algorithmic mechanism, the political and psychological overhang from that crisis has made Korean regulators especially cautious and Korean consumers potentially skeptical of any new stablecoin product bearing a domestic label.

The BOK has flagged depegging risks, rapid redemption scenarios, and the possibility that a widely adopted won stablecoin could draw deposits away from the banking system - a concern also raised by central bankers in other jurisdictions considering stablecoin regulation.

Finance professor Jaewon Choi of Seoul National University has supported the BOK's caution, citing depegging risks observed in global USD stablecoins.

What Comes Next

The trajectory of South Korea's KRW stablecoin ambitions now depends on three variables that remain unresolved. The first is legislative: whether the National Assembly can pass a consolidated Digital Asset Basic Act in 2026, and whether that act permits non-bank entities to issue stablecoins.

If the BOK's 51% bank ownership requirement prevails, the most likely initial issuers would be bank-led consortia, with Woori Bank (through BDACS) and Shinhan already furthest along in pilot work. If a more open framework emerges, Kakao and the Naver-Dunamu combination would have overwhelming distribution advantages.

The second variable is competitive. Naver Financial's acquisition of Dunamu, pending Fair Trade Commission and shareholder approval in May 2026, would create a fintech platform with both the payment rails and the exchange infrastructure to distribute a won stablecoin at scale.

KakaoBank's parallel technical development and Kaia's trademark filings suggest a similar ambition. The question is whether the market can support multiple competing won stablecoins, or whether network effects will consolidate volume around a single dominant token, as USDT has done globally.

The third is geopolitical. South Korea's stablecoin push is occurring alongside parallel efforts in Japan, where yen-backed stablecoins are already operating under fintech-led frameworks, and in the United States, where the GENIUS Act is advancing its own stablecoin regulatory architecture. If Korea's regulatory delays push too far into 2027, the window for a won stablecoin to establish itself as a meaningful regional settlement instrument may narrow as dollar and yen alternatives gain first-mover advantage across Asia.

What is not in dispute is the size of the underlying market. South Korea has more cryptocurrency account holders per capita than almost any country on earth. Its population has demonstrated overwhelming willingness to adopt digital financial tools, from mobile payments to exchange-traded cryptocurrency products. The $110 billion in capital that flowed to foreign exchanges in 2025 is not evidence of disinterest - it is evidence of demand that domestic infrastructure has not yet been able to serve.

Whether a KRW stablecoin becomes the vehicle that brings that capital back onshore, or merely opens a more efficient channel for its departure, depends on decisions that South Korean regulators have not yet been willing to make.