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Changes in Officers4063Shin-Etsu Chemical Co.,Ltd.Materials and Chemicals

Notice Regarding Changes in Directors (Outside Directors and Outside Audit & Supervisory Board Members)

Proposals to elect Oka Atsuko (岡敦子) as an outside director and Kuryu Shunichi (栗生俊一) as an outside corporate auditor will be submitted to the Annual General Meeting of Shareholders. Accordingly, outside director Komiyama Hiroshi (小宮山宏) and outside corporate auditor Kosaka Yoshito (小坂義人) are expected to retire.

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Who is moving to which position

Resolved 28 April 2026

Incoming appointee

2 items
Scheduled Appointment DateAfter the conclusion of the 149th Annual General Meeting of Shareholders, scheduled for 26 June 2026 (subject to approval at the General Meeting of Shareholders)
Oka Atsuko (岡敦子)
Previous positionNTT TechnoCross Corporation, Representative Director and President (currently serving)
New positionOutside Directors
生年月日 18 October 1963
Kuryu Shunichi (栗生俊一)
Previous positionDeputy Chief Cabinet Secretary
New positionOutside Corporate Auditor
生年月日 6 December 1958

Departing officer

2 items
Date of departureAt the conclusion of the 149th Annual General Meeting of Shareholders, scheduled for 26 June 2026
Komiyama Hiroshi (小宮山宏)Next role stated
Former PositionOutside Directors
New positionRetirement
Kosaka Yoshito (小坂義人)Next role stated
Former PositionOutside Corporate Auditor
New positionRetirement

“Next role stated” means the document names the position the person holds after stepping down. It does not necessarily mean they are leaving the company.

Whether the incumbent will remain in office (whether they will retain their position)

No statement that they will remain on the Board of Directors or the Board of Corporate Auditors

Filing as an independent officerOka Atsuko (岡敦子) and Kuryu Shunichi (栗生俊一) are both expected to be reported to the Tokyo Stock Exchange as independent officers.
Shareholders’ meeting approvalRequired. Proposals concerning the candidates for newly appointed outside director and outside corporate auditor will be submitted to the 149th Annual General Meeting of Shareholders, scheduled for 26 June 2026.
Independent officers are outside officers registered with the exchange as having no conflict of interest with general shareholders.
Who is moving to which position
ItemDetails
Resolution date28 April 2026
Scheduled Appointment DateAfter the conclusion of the 149th Annual General Meeting of Shareholders, scheduled for 26 June 2026 (subject to approval at the General Meeting of Shareholders)
Date of departureAt the conclusion of the 149th Annual General Meeting of Shareholders, scheduled for 26 June 2026
Name of appointeeOka Atsuko (岡敦子), Kuryu Shunichi (栗生俊一)
Appointee's new positionOutside Directors, Outside Corporate Auditor
Appointee's previous positionNTT TechnoCross Corporation, Representative Director and President (currently serving), Deputy Chief Cabinet Secretary
Appointee's date of birth18 October 1963, 6 December 1958
Name of departing officerKomiyama Hiroshi (小宮山宏), Kosaka Yoshito (小坂義人)
Former position of departing officerOutside Directors, Outside Corporate Auditor
New position of departing officerRetirement, Retirement
Whether the incumbent will remain in officeNo statement that they will remain on the Board of Directors or the Board of Corporate Auditors
Filing as an independent officerOka Atsuko (岡敦子) and Kuryu Shunichi (栗生俊一) are both expected to be reported to the Tokyo Stock Exchange as independent officers.
Subject to Approval by the General Meeting of ShareholdersRequired. Proposals concerning the candidates for newly appointed outside director and outside corporate auditor will be submitted to the 149th Annual General Meeting of Shareholders, scheduled for 26 June 2026.
Items this document does not state (8)
Year the appointee joined the CompanyNumber of shares held by the appointeeReason for departureReason for changeReasons for appointmentNumber of directors after the changeDetails of organizational changesChange in Corporate Governance Structure

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.

No specific reasons for the appointments or retirements are stated.

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.
Notice Regarding Changes in Directors (Outside Directors and Outside Audit & Supervisory Board Members) | Shin-Etsu Chemical Co.,Ltd. (4063) timely disclosure | Komori