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Occurring Fact1433BESTERRA CO.,LTDConstruction and Materials

Apology and Notice Regarding an Accident at One of Our Construction Sites (Second Report)

Regarding the construction site accident that occurred on 7 April 2026, 1 worker remains missing, and investigations by the relevant authorities are ongoing. The Company has established a committee to prevent recurrence and is working to strengthen its safety measures.

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Apology and Notice Regarding an Accident at One of Our Construction Sites

Subject Entity

BESTERRA CO.,LTD

Target Locations / Products

Equipment dismantling construction site at JFE Steel Corporation's East Japan Works (Keihin District) in Kawasaki, Kanagawa Prefecture

Occurrence7 April 2026
This disclosure06/09/2026

Company response

Suspended operations

There has been no interruption to the construction work.

Investigation structure

The Board of Directors resolved to establish the Committee to Prevent Recurrence on 9 June 2026. Outside directors will form the core of the committee.

Measures to prevent recurrence

The Company has taken urgent measures to prevent recurrence, including further strengthening its existing safety measures; it has established the Committee to Prevent Recurrence to reassess from multiple perspectives the factors that could compromise safety and strengthen its safety measures.

Amount of Impact on Business Performance

The direct impact on earnings cannot be calculated.

Impact on Earnings Forecast

As the direct impact of this accident on earnings cannot be calculated at this time, its impact on earnings is unknown. There are currently no matters requiring disclosure regarding changes to the medium-term management plan, which begins in the current fiscal year.

Related procedures

Type

Investigation by the relevant authorities

Court or authority

Relevant authorities

Outlook

The search for the missing person will continue with the cooperation of the relevant agencies. The Committee to Prevent Recurrence will reassess the factors that could compromise safety and strengthen the Company's safety measures. If a material impact on earnings is expected, the Company will report it promptly.

Planned follow-up disclosure

The Company will report promptly if any matter requiring disclosure arises.

Event that occurred
ItemDetails
Event nameApology and Notice Regarding an Accident at One of Our Construction Sites
Date of occurrence7 April 2026
Subject EntityBESTERRA CO.,LTD
Target Locations / ProductsEquipment dismantling construction site at JFE Steel Corporation's East Japan Works (Keihin District) in Kawasaki, Kanagawa Prefecture
Amount of Impact on Business PerformanceThe direct impact on earnings cannot be calculated.
Impact on Earnings ForecastAs the direct impact of this accident on earnings cannot be calculated at this time, its impact on earnings is unknown. There are currently no matters requiring disclosure regarding changes to the medium-term management plan, which begins in the current fiscal year.
Type of litigation or proceedingInvestigation by the relevant authorities
Court or authorityRelevant authorities
Suspended operationsThere has been no interruption to the construction work.
Investigation structureThe Board of Directors resolved to establish the Committee to Prevent Recurrence on 9 June 2026. Outside directors will form the core of the committee.
Measures to prevent recurrenceThe Company has taken urgent measures to prevent recurrence, including further strengthening its existing safety measures; it has established the Committee to Prevent Recurrence to reassess from multiple perspectives the factors that could compromise safety and strengthen its safety measures.
OutlookThe search for the missing person will continue with the cooperation of the relevant agencies. The Committee to Prevent Recurrence will reassess the factors that could compromise safety and strengthen the Company's safety measures. If a material impact on earnings is expected, the Company will report it promptly.
Planned follow-up disclosureThe Company will report promptly if any matter requiring disclosure arises.
Items this document does not state (12)
Date recognized / date notice receivedCauseAccounting period in which recognizedPlaintiffDefendantDate of filing / date of actionClaim amount / surcharge amountAmount of receivables at risk of non-collection or delayed collectionScheduled resumption dateDirectors' and officers' liabilityVoting rights ownership percentage before the changeVoting rights ownership percentage after the change

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.

As investigations by the relevant authorities into the detailed cause and circumstances of the accident are ongoing, the Company has not expressed its view at this time.

How to read this page

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Corrections happenIf the company reissues this disclosure, the page is rebuilt from the corrected version and the revision number moves up.
Apology and Notice Regarding an Accident at One of Our Construction Sites (Second Report) | BESTERRA CO.,LTD (1433) timely disclosure | Komori