Japanese Mega-Banks Complete Pilot for Joint Stablecoin Issuance

A consortium of Japan’s leading financial institutions has successfully concluded a proof-of-concept (PoC) experiment aimed at revolutionizing cross-border payments through the use of stablecoins. Between July 17 and July 23, 2026, Mizuho Bank, MUFG Bank, and Sumitomo Mitsui Banking Corporation (SMBC) collaborated with the TISI Corporation to test the joint issuance and circulation of digital assets. This initiative marks a significant step toward integrating blockchain technology into the traditional banking infrastructure of the world’s fourth-largest economy.

Testing Cross-Border Settlements and Interoperability

The pilot program focused on the practical application of stablecoins for international corporate transactions, specifically involving Mitsubishi Corporation’s domestic and overseas locations. During the trial, Mitsubishi UFJ Trust and Banking Corporation served as the trustee responsible for the technical issuance of the tokens. The experiment meticulously verified three core processes: issuance, transfer, and redemption.

• The experiment utilized a multi-bank joint issuance model to ensure liquidity.
• Technical verification of cross-border settlement speeds compared to traditional SWIFT methods.
• Validation of regulatory compliance frameworks within the Japanese legal landscape.

Stablecoins are digital currencies pegged to a stable reserve asset, such as the Japanese Yen or the U.S. Dollar, designed to reduce volatility while maintaining the efficiency of distributed ledger technology (DLT).

Efficiency Gains and System Reliability

The results of the week-long trial provided essential data on the performance of blockchain-based settlements. According to the participating banks, the experiment demonstrated that a multi-bank model is not only feasible but also provides a high level of system security and reliability. By utilizing a unified issuance platform, the banks aim to reduce the costs and delays typically associated with intermediary correspondent banking networks.

The results indicated that practical knowledge regarding stablecoin issuance and circulation was accumulated, system security and reliability were confirmed, and the multi-bank joint issuance model was demonstrated to be feasible.

The successful completion of this PoC suggests that Japanese financial institutions are moving closer to a commercial rollout of Yen-pegged stablecoins. This development aligns with Japan’s revised Payment Services Act, which provides a legal framework for regulated entities to issue digital assets. As the global financial sector increasingly explores Central Bank Digital Currencies (CBDCs) and private stablecoins, the collaboration between Mizuho, MUFG, and SMBC positions Japan as a proactive leader in the modernization of international capital flows.