South Korea's central bank just started settling the won around the clock, and the pilot that began Monday morning is aimed less at Koreans than at everyone else. The Bank of Korea Won International Wire Network entered trial operations at 9 a.m. on Sept. 21 with KB Kookmin Bank, Woori Bank, Hana Bank and Shinhan Bank participating, allowing foreign investors to settle Korean currency transactions outside conventional domestic banking hours for the first time. The first reported test transaction, between two participating domestic institutions at around 9:30 a.m., carried approximately 1.4 billion won, roughly $1 million. The system will operate continuously from 9 a.m. one business day until 9 a.m. the next, weekends and holidays excluded, and foreign banks are scheduled to join when full operation begins in January 2027.
Why the won settlement pilot is built for offshore capital
The access model is the innovation. Foreign investors using the new network can settle won transactions through Registered Foreign Institutions for KRW Business, known as RFI-Ks, without opening a separate account with a domestic Korean financial institution. Revised foreign-exchange rules published days before the pilot allow registered foreign institutions to open omnibus accounts at Korean foreign-exchange banks and process settlement through the central bank's rails. An overseas investor can hold and transact won through a registered institution in its home market while the underlying settlement completes on central-bank infrastructure, which is what the BOK means when it says the network "is expected to improve foreigners' access to won settlement infrastructure, eventually enhancing the currency's international standing." That is a policy expectation, not a measured outcome, and the pilot period is where the measurement happens.
The program sits inside the Won Internationalization Roadmap the Finance Ministry published in July with the BOK and other agencies, which calls for round-the-clock foreign-exchange access, offshore won accounts, easier capital transactions and settlement infrastructure available outside Korea. The roadmap's liquidity backstops are worth noting: domestic banks can provide temporary won funding when overseas institutions face shortages, with the government and central bank able to step in when necessary, and regulators plan to monitor offshore won conditions as international use grows. Korea is engineering the plumbing for foreign capital to live in won without waiting for Seoul's morning, the same international-access logic driving the Korea-Japan stablecoin settlement experiments and the corporate stablecoin pilots Bitnxt has tracked.
The tokenized tracks are running separately, and that matters
The wire network is deliberately conventional, and that is the detail crypto readers should not miss. The BOK's blockchain-based settlement work continues on two separate tracks. Under Project Agorá, the BIS-led cross-border effort, the central bank completed live tests in July using tokenized central-bank reserves across multiple currencies, including a 20 million won transfer between NongHyup Bank and Shinhan Bank using tokenized reserve funds. Project Hangang, the domestic track, expanded from seven to nine banks in its second phase, added deposit-token features including peer-to-peer transfers, biometric approvals and government subsidy payments, and now counts nine banks, eight payment companies and two large merchants testing deposit tokens against existing retail systems, with a 9.6 billion won government program connecting deposit tokens to legacy payment infrastructure. Hangang remains a wholesale CBDC beneath commercial-bank deposit tokens, not a retail CBDC.
Read the two programs together and Korea's sequencing becomes clear: the conventional 24-hour network addresses the access problem now, while the tokenized projects address it for the future settlement architecture. The BOK's Sept. 17 payments systems report confirmed the parallel strategy, noting extended BOK-Wire+ operating hours, the new international won network, adoption of ISO 20022, and continued study of virtual assets, won-based stablecoins and tokenized settlement. Korea is also the market whose regulators have worried publicly about AI-leverage dynamics, as covered in the BOK's earlier risk warning, so the institutional caution is familiar.
What to watch through January
Three checkpoints will tell you whether this becomes infrastructure or stays a pilot. First, whether foreign banks actually connect in January 2027, since offshore institutions signing onto a central-bank settlement rail is the demand signal that matters. Second, whether the 24-hour window shifts real trading volume into Asian evening hours, which is the roadmap's implicit bet: that removing timing friction captures flows currently routed through other currencies. Third, whether the Project Hangang deposit tokens eventually interoperate with the wire network, because that is the point at which Korea's two settlement tracks converge into a genuine won-on-chain stack. Until then, the honest framing is modest: a well-run central bank just made its currency easier to hold and settle from abroad, three months of testing stand between the pilot and the real thing, and the crypto-native version of this exact capability is being built one floor down.
