Korea’s Biggest Bank to Use JPMorgan’s $4T Blockchain Payments Network

South Korea’s biggest bank is about to send corporate dollars through blockchain rails — and the implications go well beyond a single product launch. KB Kookmin Bank will roll out a Kinexys-powered cross-border corporate payment service in August 2026, making it the first South Korean financial institution to use J.P. Morgan’s blockchain payment network for live trade settlements, according to South Korea’s Yonhap News Agency. The move signals something larger: blockchain payments in Korea are graduating from pilot programs to production infrastructure.

Key takeaways

• KB Kookmin Bank launches a Kinexys-based cross-border USD payment service in August 2026, covering 10 countries through its Korean and Singapore branches.
• It is the first South Korean bank to use J.P. Morgan’s Kinexys blockchain network for corporate import and export settlements.
• In June 2026, KB Kookmin issued a $100 million blockchain-based digital bond, cutting settlement time from five to three business days.
• KB Kookmin Card is building a hybrid stablecoin credit card with Avalanche and OpenAsset, extending blockchain into consumer payments.
• Nine South Korean banks, including KB Kookmin, Shinhan, Woori, and Hana, are participating in a government-backed regulatory sandbox for tokenized bank deposits, set for Q4 2026.

KB Kookmin Bank Launches Kinexys-Powered Cross-Border Payment Service

The service targets import and export businesses. At launch, it will support USD transfers across ten countries: South Korea, the United States, Singapore, Saudi Arabia, India, Thailand, Qatar, the United Arab Emirates, Bahrain, and South Africa. Corporate clients will access the network through KB Kookmin’s domestic branches and its Singapore office.

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