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Other Disclosures5254Arent Inc.Information and Communications, Services and Others

Regarding the Use of Our “PlantStream” in the Hydrogen Production Equipment Project for TOYOTA MOTOR CORPORATION and 千代田化工建設株式会社

Reiterated that Arent’s automated plant design system, “PlantStream,” is being used in a large-scale water electrolysis system design project for TOYOTA MOTOR CORPORATION and 千代田化工建設株式会社. This is an explanation related to the announcement made in 2024, rather than a new contract or the start of operations.

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Announced details

PlantStream (automated plant design system)
Applicable field (uses covered by this announcement)

Design of large-scale water electrolysis systems and hydrogen production equipment

What the company reported numerically
Usage history

Used in the design project for the relevant project

Relationship between the counterparty and the company
Arent Inc.5254
Relationship with the Company

Our PlantStream is being used in a large-scale water electrolysis system design project undertaken by the two companies. Other capital or personnel relationships: Not disclosed.

CounterpartyTOYOTA MOTOR CORPORATION, Chiyoda Corporation

In this announcement the company addresses none of Contract Value / Offering price / Impact on Business Performance.

Source (materials cited by the company)

Press release dated 6 March 2024; The Nikkei dated 17 March 2026

Announced details
ItemDetails
Names of Products / Services CoveredPlantStream (automated plant design system)
CounterpartyTOYOTA MOTOR CORPORATION, Chiyoda Corporation
Relationship with the CompanyOur PlantStream is being used in a large-scale water electrolysis system design project undertaken by the two companies. Other capital or personnel relationships: Not disclosed.
Applicable areaDesign of large-scale water electrolysis systems and hydrogen production equipment
Usage historyUsed in the design project for the relevant project
SourcePress release dated 6 March 2024; The Nikkei dated 17 March 2026
Items this document does not state (12)
Counterparty overviewContract ValueOffering priceContract DateLaunch dateAward/certification nameAwarding / certifying bodyRegistration number and expiry dateLocationLocation scaleQuantitative EffectsImpact on Business Performance

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.

To explain the status of PlantStream’s use in the project following a 17 March 2026 report by The Nikkei on hydrogen production equipment. The announcement directs readers to the press release dated 6 March 2024 for details.

How to read this page

This is not the documentKomori reads the disclosure the company filed and writes this summary. Figures are as stated by the company and are not audited.
Weight is not a verdictIt measures how much this changes what the company had already told the market. It is not a view on the shares.
Corrections happenIf the company reissues this disclosure, the page is rebuilt from the corrected version and the revision number moves up.
Regarding the Use of Our “PlantStream” in the Hydrogen Production Equipment Project for TOYOTA MOTOR CORPORATION and 千代田化工建設株式会社 | Arent Inc. (5254) timely disclosure | Komori