Japanese Banks Complete Stablecoin Cross-Border Payment Trial
Tokyo, Japan – MUFG Bank, Sumitomo Mitsui Banking Corporation (SMBC), and Mizuho Bank announced on October 16th that they have successfully completed a proof-of-concept for the joint issuance of a Japanese yen stablecoin and cross-border corporate payments.
The author posits that for stablecoins to become a viable long-term payment tool for businesses, robust backend processes such as identity verification, reconciliation, and anomaly handling are crucial. Taiwan, the author suggests, should prioritize validating these aspects within concrete scenarios of corporate cross-border payments. This article is an opinion piece by Chung Chien-Ping, Associate Professor and Director of the Graduate Institute of FinTech and Information Security at National Taipei University of Technology.
The Backend of Blockchain Transactions
Does a bank’s work end once a cross-border payment is successfully recorded as transferred on the blockchain? The answer lies in the identity verification, fund management, compliance review, and account reconciliation that underpin every transaction. As stablecoins integrate into the banking system, market focus is shifting from “can it transfer?” to “can it become a payment tool businesses are willing to use long-term?”
Stablecoins offer potential applications in Supply Chain Finance, integrating the traditional “flow of funds, information, and goods” within supply chains. Their core appeal lies in leveraging blockchain’s real-time clearing, peer-to-peer (P2P) transfer capabilities, low costs, and 24/7 operation to address the persistent pain points of slow, expensive, and opaque cross-border payments with numerous intermediaries.
A Collaborative Approach to Digital Currency
The three major Japanese banks – MUFG Bank, SMBC, and Mizuho Bank – announced on October 16th the completion of their proof-of-concept for the joint issuance of a Japanese yen stablecoin and cross-border corporate payments. The test simulated fund transfers between Mitsubishi Corporation’s operations in Japan and its overseas branches, validating issuance, transfer, and redemption processes, as well as examining legal compliance and operational arrangements. According to previously announced plans, the banks aim to commence actual transactions by the end of March 2027, though the official launch date, transaction fees, and commercial scale remain to be confirmed.
A significant aspect of this collaboration is the move by formerly competing banks to jointly build a payment network for corporate use. For multinational corporations, fund movements frequently span multiple banks, borders, and time zones. If digital payment tools are confined to a single bank’s closed ecosystem, their effectiveness is inherently limited. A joint issuance arrangement, however, has the potential to integrate different banks’ customer bases and expand the circulation scope.
The Japanese banks’ design for this yen stablecoin utilizes a trust structure, with trust assets managed by bank deposits supporting its value. Circulation is predicated on users who have completed identity verification. This approach reflects banks’ efforts to extend their existing trust frameworks, customer management, and regulatory requirements to on-chain payments.
From Internal Transfers to Broader Applications
From an application perspective, internal group fund management serves as a logical starting point. For instance, Japanese companies needing to transfer operating funds to overseas branches are concerned not only with when funds arrive but also with payment status, exchange rates, and available funds in each location. If a joint stablecoin system can seamlessly connect with bank accounts and corporate financial systems, it could reduce information gaps and redundant operations. Future applications could extend to supplier payments and cross-border trade settlement.
However, these benefits still require validation through actual operations. The completion of a proof-of-concept by the banks indicates the technical and operational feasibility under specific conditions, but a significant distance remains before large-scale commercialization. Whether businesses adopt these solutions will ultimately depend on their overall cost, ease of use, and risk profile compared to existing options. While on-chain transfers can operate around the clock, this does not guarantee that foreign exchange, fiat currency disbursement, and the operations of receiving banks can also function on a 24/7 basis.
The Importance of Backend Processes
Therefore, evaluating stablecoin payments requires a comprehensive view of the entire process. Before payment, banks must verify customer identity, transaction authority, and recipient addresses, arrange funds and exchange rates, and conduct necessary anti-money laundering and sanctions screening. During transaction execution, wallet authorization, key security, and network status are involved. Post-transaction, confirmation of receipt, crediting, reconciliation, and anomaly handling are necessary.
While on-chain confirmation is a critical execution point, it does not equate to the completion of all settlement operations on the bank’s end. For businesses, these seemingly cumbersome backend tasks are precisely what determine the reliability of a payment service. If funds are delayed or discrepancies arise, who is responsible for investigation? How are funds handled in case of transaction failure? What procedures will be used to clarify inconsistencies between on-chain records and bank accounts? Without clear answers to these questions, even the fastest transfer speeds will struggle to support daily business operations.
Taiwan’s Regulatory Landscape and Emerging Technologies
Is Taiwan prepared? From the perspective of its regulatory framework and banking practices, the answer is yes, though the progress and nature of these efforts require clear differentiation. The Financial Supervisory Commission (FSC) announced that the Virtual Asset Service Providers Act was passed on June 30, 2026, incorporating regulations for stablecoin issuance permits, reserve assets, and information disclosure, and is continuing to advance subordinate legislation. Legislative passage, regulatory implementation, and the approval of individual business operations are distinct stages.
Another notable development is the FSC’s opening of applications for banks to pilot deposit token business on September 2026, requiring explanations of issuance and redemption processes, account reconciliation, and security controls. While the legal nature of deposit tokens remains that of bank deposits and should not be conflated with stablecoins, both involve the interface between traditional accounting and on-chain records, offering financial institutions opportunities to accumulate relevant technical and risk management experience.
The Rise of AI Agents and Agentic Commerce
A future variable to consider is Artificial Intelligence (AI) Agents. As AI Agents begin to operate in the real world, traditional financial systems present significant bottlenecks. AI cannot open bank accounts, lacks identification (KYC), and cannot use credit cards. Blockchain and tokenization, however, offer permissionless, programmable, and real-time settlement financial infrastructure. The combination of these elements could elevate AI Agents from mere “text generators” to “digital economic entities” with economic autonomy.
If businesses authorize AI Agents to assist with procurement, initiate payments, or issue fund transfer instructions in the future, stablecoins could become a viable payment option. However, the higher the degree of automation, the more clearly defined the authorization boundaries need to be. Limits on payment amounts, designated recipients, and circumstances requiring human review should be pre-set. Model judgments cannot directly replace payment authority, and transaction records must be sufficient to trace decisions and responsibilities.
A Pragmatic Path Forward for Taiwan
For Taiwan, which is deeply integrated into global supply chains, a more pragmatic approach is to start by addressing the specific challenges of corporate cross-border payments. This involves selecting clear scenarios to validate arrival times, overall costs, reconciliation efficiency, and anomaly handling capabilities before deciding on suitable digital payment tools. Interoperability between banks, connectivity with overseas financial institutions, and integration with existing corporate systems will all influence adoption willingness.
The collaboration among Japan’s three major banks serves as a reminder that for stablecoins to enter mainstream finance, banks must jointly invest in the construction of payment networks and operational systems. With the advancement of AI Agent applications, “agentic commerce” is ushering in new transaction models. In the future, under the premise of regulatory compliance and risk control, this will further expand into “agentic finance.” Taiwan has begun its preparations; the next challenge is to connect regulations, technology, and business needs to make every fund transfer more efficient, with clear accounting records and defined responsibilities. This is a crucial step for stablecoins to transition from a financial topic to everyday financial services.
