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Other Disclosures3997TRADE WORKS Co.,LtdInformation and Communications, Services and Others

Notice Regarding a Proof of Concept (PoC) with SBI Securities Co., Ltd. — Demonstration and Verification of the “LastEvidence” Blockchain Evidence Platform for the Era of AI Agents —

Trade Works Co., Ltd. has begun a proof of concept, jointly with SBI Securities Co., Ltd., to apply “LastEvidence,” a blockchain evidence platform, to securities trading systems. The PoC will verify the detection of tampering with system logs, the integrity of evidence data, and the platform’s interoperability and practicality with existing systems.

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Announced details

LastEvidence
Applicable field (uses covered by this announcement)

Securities trading systems, financial operations, and evidence management for AI agent operation histories and trading processes

Launch dateCommencing 1 July 2026 (PoC period: from 1 July 2026 through the end of August 2026)
Relationship between the counterparty and the company
TRADE WORKS Co.,Ltd3997
Relationship with the Company

The PoC is being conducted jointly with SBI Securities Co., Ltd. SBI Securities will provide the securities trading system environment and jointly handle the recording and verification of evidence data with Trade Works Co., Ltd. Trade Works Co., Ltd. is a capital and business alliance partner of THXLAB株式会社 and is responsible for integrating and implementing LastEvidence in financial systems.

CounterpartySBI SECURITIES CO., LTD.

Head office: Minato-ku, Tokyo; Representative Director and President: Takamura Masato (髙村正人). One of Japan’s leading securities companies, driving the advancement of financial services through the use of cutting-edge technologies.

Location (as indicated in this announcement)

The Prince Park Tower Tokyo (the company’s booth at WebX2026)

Impact on Business Performance

The impact on the company’s consolidated results for the fiscal year ending December 2026 is expected to be immaterial.

The company does not address Contract Value / Offering price.

Announced details
ItemDetails
Names of Products / Services CoveredLastEvidence
CounterpartySBI SECURITIES CO., LTD.
Counterparty overviewHead office: Minato-ku, Tokyo; Representative Director and President: Takamura Masato (髙村正人). One of Japan’s leading securities companies, driving the advancement of financial services through the use of cutting-edge technologies.
Relationship with the CompanyThe PoC is being conducted jointly with SBI Securities Co., Ltd. SBI Securities will provide the securities trading system environment and jointly handle the recording and verification of evidence data with Trade Works Co., Ltd. Trade Works Co., Ltd. is a capital and business alliance partner of THXLAB株式会社 and is responsible for integrating and implementing LastEvidence in financial systems.
Launch dateCommencing 1 July 2026 (PoC period: from 1 July 2026 through the end of August 2026)
Applicable areaSecurities trading systems, financial operations, and evidence management for AI agent operation histories and trading processes
LocationThe Prince Park Tower Tokyo (the company’s booth at WebX2026)
Impact on Business PerformanceThe impact on the company’s consolidated results for the fiscal year ending December 2026 is expected to be immaterial.
Items this document does not state (10)
Contract ValueOffering priceContract DateAward/certification nameAwarding / certifying bodyRegistration number and expiry dateLocation scaleQuantitative EffectsUsage historySource

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

The purpose is to assess, in an actual securities trading system environment, the feasibility of putting into practical use and applying to financial operations an evidence platform capable of objectively proving who executed what, when, and with what authority, as required in the age of AI agents.

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Notice Regarding a Proof of Concept (PoC) with SBI Securities Co., Ltd. — Demonstration and Verification of the “LastEvidence” Blockchain Evidence Platform for the Era of AI Agents — | TRADE WORKS Co.,Ltd (3997) timely disclosure | Komori