What happened
- Specific facts/numbers: The proof of concept ran from July 17 to July 23, 2026, and was announced on October 16, 2026; it tested joint issuance of yen-denominated stablecoins and cross-border payment flows between Mitsubishi Corporation’s Japanese and overseas locations.
- Institutions involved: Sumitomo Mitsui Banking Corporation, Mizuho Bank, MUFG Bank, Mitsubishi UFJ Trust and Banking Corporation, and TISI Inc. participated, with support from Japan’s Financial Services Agency FinTech PoC Hub.
- Regulatory/technical context: The stablecoins were structured as specified trust receivable rights under Article 2, Paragraph 9 of Japan’s Payment Services Act, with Mizuho, MUFG, and SMBC acting as joint principal trustees and Mitsubishi UFJ Trust and Banking Corporation as agent trustee.
- What to watch next: The group said the PoC was conducted with a view to future real-world deployment of digital currency, but no specific next milestone or launch date was identified in the materials reviewed.
Why it matters
The trial suggests Japan’s largest banks are moving from concept work toward an operational model for regulated, bank-linked stablecoins that could reduce friction in corporate cross-border payments.
HKMA Relevance
Indirect: A concrete bank-led stablecoin payments test in Japan may influence how Hong Kong banks and policymakers assess regulated tokenised deposit and cross-border payments models, but no HKMA action is involved in this story.