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Changes in Officers5290Vertex CorporationConstruction and Materials

Notice Regarding Executive Changes at Our Major Subsidiary, ベルテクス株式会社

At our major subsidiary Vertex Corporation, Yamaguchi Norio (山口 乃理夫) will be newly appointed as Director, Executive Vice President, and Hirayama Satoshi (平山 哲) as Executive Officer. The new executive structure effective 1 October 2026 is also presented.

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Who is moving to which position

Resolved 24 September 2026

Incoming appointee

2 items
Scheduled Appointment Date1 October 2026
Yamaguchi Norio (山口 乃理夫)
Previous positionExternal hire
New positionExecutive Vice President and Director
Hirayama Satoshi (平山 哲)
Previous positionHead of Corporate Administration Division / Executive Officer and Head of Corporate Planning Division, Vertex Corporation
New positionExecutive officers
Directors after the change6Number
Who is moving to which position
ItemDetails
Resolution date24 September 2026
Scheduled Appointment Date1 October 2026
Name of appointeeYamaguchi Norio (山口 乃理夫), Hirayama Satoshi (平山 哲)
Appointee's new positionExecutive Vice President and Director, Executive officers
Appointee's previous positionExternal hire, Head of Corporate Administration Division / Executive Officer and Head of Corporate Planning Division, Vertex Corporation
Number of directors after the change6 directors (the number of outside directors is Not disclosed)
Items this document does not state (15)
Date of departureAppointee's date of birthYear the appointee joined the CompanyNumber of shares held by the appointeeName of departing officerFormer position of departing officerNew position of departing officerReason for departureWhether the incumbent will remain in officeReason for changeReasons for appointmentFiling as an independent officerDetails of organizational changesChange in Corporate Governance StructureSubject to Approval by the General Meeting of Shareholders

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 executive personnel changes have been decided. No specific reasons for the personnel changes are provided.

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Notice Regarding Executive Changes at Our Major Subsidiary, ベルテクス株式会社 | Vertex Corporation (5290) timely disclosure | Komori