Alterna Trust

Wiki route

Alterna Trust is a standalone trust-company route under trust-banks INDEX and is promoted from the Japan trust companies registry index. Read it with Progmat, Progmat stablecoin / digital asset route, ODX, and SMTB.

Use this page for digital securities, security-token trust, beneficiary-certificate issuing trust, and trust-company platform questions.

TL;DR

Alterna Trust is a digital-securities-focused trust company established by Mitsui & Co. Digital Asset Management (MDM) and Sumitomo Mitsui Trust Bank. The SMTG English release describes Alterna Trust as a trust company specializing in digital securities and says administration of beneficiary-certificate issuing trusts plays a crucial role in ST issuance.^↗ The MDM release says MDM built a setup under the ALTERNA brand to provide ST acquisition, operation, trust administration and sale end-to-end, while Progmat provides Progmat SaaS to MDM and Alterna Trust.^↗ The FSA trust-company workbook lists Alterna Trust Co., Ltd. with licence date 2025-07-03, corporate number 9010001253166, and address 1-9-8 Nihonbashi Horidome-cho, Chuo-ku, Tokyo.^↗

Entity boundary

This is not a securities broker, exchange, or stablecoin issuer page. The useful boundary is the trustee / trust-administration role for security-token fund structures.

Digital securities trust role

Group / alliance relationship

MDM side

MDM is the platform / asset-management side of the structure. Its release says MDM has built the ALTERNA service for individual investors and operates ST fund formation / management / sale. It also says its use of Progmat SaaS lets MDM complete ST management itself, reducing scheme costs and aiming to maximize returns to investors.^↗

Sumitomo Mitsui Trust side

SuMiTB supplies trust know-how and the trust-bank group route. SMTG release says SuMiTB and MDM entered a business alliance for digital securities, including joint management of Alterna Trust, dispatching experts / sharing know-how, forming products using ALTERNA, introducing assets including claims held or sourced by the bank, and providing funds to MDM while MDM uses SuMiTB’s sales network.^↗

Progmat boundary

Progmat is infrastructure, not the trust company. MDM release describes Progmat SaaS as a product enabling financial institutions to start digital-asset-related businesses such as ledger-management and custody functions without building their own blockchain / DLT nodes.^↗

Why standalone page matters

1. Trust layer is explicit: Many ST pages over-emphasize platform or exchange. Alterna Trust gives FinWiki a trustee / beneficiary-certificate issuing trust anchor.
2. It links trust banking to fintech: The page bridges smtb, progmat, ALTERNA and security-token fund issuance.
3. It is not a soft partnership note: FSA list and company releases support a concrete regulated entity, not only a concept.
4. It limits role confusion: Use ODX for market venue, Progmat for infrastructure, and this page for trust administration.

Related

• INDEX
• trust-companies-japan-index
• smtb
• progmat
• jp-stablecoin-progmat
• osaka-digital-exchange
• securities-license-stack
• FinWiki index

Sources

• FSA: Trust-company list sintaku01.xlsx (Alterna Trust Co., Ltd., 2025-07-03 licence date; checked 2026-06-24) https://www.fsa.go.jp/menkyo/menkyoj/sintaku01.xlsx
• Mitsui & Co. Digital Asset Management: Establishment of Alterna Trust and deepening of Progmat / ALTERNA cooperation (2025-07-03) https://corp.mitsui-x.com/news/2025/07/03/pr20250703_2.html
• Sumitomo Mitsui Trust Group: Establishment of “Alterna Trust,” a New Company that Specializes in Digital Securities (2025-07-03) https://www.smtg.jp/english/-/media/tg/english/news/2025/E250703.pdf

[!info] Verification status confidence: likely (2026-06-24). Directly checked the FSA trust-company workbook and verified establishment, ownership, trustee role, and Progmat / ALTERNA relationship from MDM / SMTG releases. Broker / exchange / platform roles are separated from this trust-company role.