Technical Design Enables Direct Currency Link
SBI Digital Practice and Kyobo Life completed a cross-border pilot in September 2026 that directly exchanged yen-linked test tokens for won-linked tokens without using the U. S. dollar as an intermediary. The trial, conducted between Japan and South Korea, aimed to test the feasibility of a bilateral stablecoin settlement system for regional financial transactions. Both firms are exploring ways to reduce reliance on traditional currency corridors in cross-border payments.
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Digital Asset Oversight: EU Tightens Rules on Stablecoins and Market ConductThe pilot focused on verifying whether value could be transferred efficiently between the two currencies using blockchain-based tokens pegged to the Japanese yen and South Korean won. SBI Digital Practice, the fintech arm of SBI Group, issued the yen-linked tokens, while Kyobo Life, a major South Korean insurer, managed the won-linked counterparts. Transactions were settled in real time on a shared distributed ledger, with smart contracts automating the conversion process. The test excluded any conversion through dollars or other third-party currencies, marking a notable shift from conventional cross-border models.
Can This Model Scale Beyond Bilateral Use?
The system used a dual-token model where each token maintained a 1:1 peg to its respective fiat currency through reserve backing audited by third parties. During the trial, participants executed multiple transactions ranging from small retail-equivalent amounts to larger institutional transfers. Settlement times averaged under ten seconds, with transaction costs significantly lower than traditional wire transfers. Kyobo Life reported that the won-linked tokens remained fully collateralized throughout the test, with no deviations from peg observed. SBI Digital Practice emphasized that the infrastructure was designed to comply with existing financial regulations in both jurisdictions.
Experts note that while the trial succeeded in eliminating the dollar leg, broader adoption would require integration with central bank digital currency frameworks and regulatory alignment across more jurisdictions. The project team is evaluating whether the same architecture could support additional currencies in East Asia, such as the Singapore dollar or Hong Kong dollar. Both firms have indicated interest in expanding the pilot to include corporate use cases like supply chain payments and insurance premium settlements. No timeline has been set for a full-scale rollout, but the results are being shared with financial authorities in Tokyo and Seoul for further review.
What was the main goal of the SBI-Kyobo stablecoin trial? The trial aimed to test direct conversion between yen-linked and won-linked tokens without using the U. S. dollar as an intermediary currency.
Frequently Asked Questions
Did the test involve real money or only simulated tokens? The pilot used test tokens pegged to the yen and won, but they were fully backed by reserves and operated under conditions simulating real-world transactions.
Are SBI and Kyobo planning to launch a public stablecoin based on this test? No public launch has been announced; the firms are currently assessing the technology’s scalability and regulatory compliance for potential future applications.