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Changes in Officers4046OSAKA SODA CO.,LTD.Materials and Chemicals

Notice Regarding Personnel Changes

Effective 1 April 2026, the Company will make personnel changes at the plant-head and department-head levels, including changes in the responsibilities of directors and senior executive officers. The personnel responsible for positions including head of the CSR Promotion Department of the Production Engineering Division, head of the Amagasaki Plant, head of the Okayama Plant and head of the Mizushima Plant will change.

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Who is moving to which position

Incoming appointee

4 items
Scheduled Appointment DateEffective 1 April 2026
Konishi Atsuo (小西 淳夫)
Previous position取締役 上席執行役員/生産・設備・プロセス技術領域管掌/生産技術本部長/ダイソーエンジニアリング㈱取締役会長
New position生産技術本部CSR推進部長
Takagaki Norikazu (高垣 宣和)
Previous position生産技術本部CSR推進部長
New position尼崎工場長
中尾 香
Previous position岡山工場長
New position水島工場長
新田 晃司
Previous positionNot disclosed
New position岡山工場長

Departing officer

5 items
Konishi Atsuo (小西 淳夫)Next role stated
Former PositionHead of Production Engineering Headquarters
New position生産技術本部CSR推進部長
Takagaki Norikazu (高垣 宣和)Next role stated
Former Position生産技術本部CSR推進部長
New position尼崎工場長
中尾 香Next role stated
Former Position岡山工場長
New position水島工場長
新田 晃司Next role stated
Former PositionNot disclosed
New position岡山工場長
増本 喜之Stepping down
Former Position尼崎工場長
New positionNot disclosed

“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)

小西淳夫は取締役・上席執行役員等を継続。その他はNot disclosed

Executive officers are responsible for day-to-day business execution and hold positions separate from directors under the Companies Act.
Who is moving to which position
ItemDetails
Scheduled Appointment DateEffective 1 April 2026
Name of appointeeKonishi Atsuo (小西 淳夫), Takagaki Norikazu (高垣 宣和), 中尾 香, 新田 晃司
Appointee's new position生産技術本部CSR推進部長, 尼崎工場長, 水島工場長, 岡山工場長
Appointee's previous position取締役 上席執行役員/生産・設備・プロセス技術領域管掌/生産技術本部長/ダイソーエンジニアリング㈱取締役会長, 生産技術本部CSR推進部長, 岡山工場長, Not disclosed
Name of departing officerKonishi Atsuo (小西 淳夫), Takagaki Norikazu (高垣 宣和), 中尾 香, 新田 晃司, 増本 喜之
Former position of departing officerHead of Production Engineering Headquarters, 生産技術本部CSR推進部長, 岡山工場長, Not disclosed, 尼崎工場長
New position of departing officer生産技術本部CSR推進部長, 尼崎工場長, 水島工場長, 岡山工場長, Not disclosed
Whether the incumbent will remain in office小西淳夫は取締役・上席執行役員等を継続。その他はNot disclosed
Items this document does not state (13)
Resolution dateDate of departureAppointee's date of birthYear the appointee joined the CompanyNumber of shares held by the appointeeReason for departureReason for changeReasons for appointmentNumber of directors after the changeFiling 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 document provides no specific explanation for the personnel changes.

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 Personnel Changes | OSAKA SODA CO.,LTD. (4046) timely disclosure | Komori