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Changes in Officers4102Maruo Calcium Co.,Ltd.Materials and Chemicals

Notice Regarding Changes in Executive Officer Personnel

Effective 1 April 2026, the company will appoint Takiyama Shigeo (瀧山成生), Ogasawara Masamichi (小笠原將倫) and Aoyama Mitsunobu (青山光延) as executive officers. All 3 will concurrently retain their current positions, including department head and deputy division head.

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Who is moving to which position

Resolved 11 March 2026

Incoming appointee

3 items
Scheduled Appointment Date1 April 2026
瀧山成生
Previous position研究開発2部長 兼第3研究室長 兼第4研究室長
New position執行役員 研究開発2部長 兼第4研究室長
小笠原將倫
Previous positionGeneral Manager, Engineering Department
New position執行役員 エンジニアリング部長
青山光延
Previous position技術本部副本部長 兼研究開発1部長 兼第1研究室長
New position執行役員 技術本部副本部長 兼研究開発1部長 兼第1研究室長
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
Resolution date11 March 2026
Scheduled Appointment Date1 April 2026
Name of appointee瀧山成生, 小笠原將倫, 青山光延
Appointee's new position執行役員 研究開発2部長 兼第4研究室長, 執行役員 エンジニアリング部長, 執行役員 技術本部副本部長 兼研究開発1部長 兼第1研究室長
Appointee's previous position研究開発2部長 兼第3研究室長 兼第4研究室長, General Manager, Engineering Department, 技術本部副本部長 兼研究開発1部長 兼第1研究室長
Items this document does not state (16)
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 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 reason for the personnel change is not stated.

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Notice Regarding Changes in Executive Officer Personnel | Maruo Calcium Co.,Ltd. (4102) timely disclosure | Komori