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

Notice Regarding Officer Appointments Following the Transition to a Company with an Audit and Supervisory Committee

Subject to approval at the Ordinary General Meeting of Shareholders scheduled for 25 June 2026, the Company will transition to a company with an Audit and Supervisory Committee and has determined its post-transition director structure. The president will remain in office, 2 executive officers will be appointed as directors, and the Audit and Supervisory Board members will change to directors serving as Audit and Supervisory Committee members.

Worth reading
40Recurring
0–100. This measures how worthwhile something is to read, not how good or bad the company is.
Direction
Neutral
Direction inferred from the company’s description.
Scale
—
Displayed only when the document provides numerical figures.
Wording
Conditional
How definitive the wording is.

Who is moving to which position

Resolved 27 March 2026

Incoming appointee

3 items
Scheduled Appointment Date25 June 2026 (subject to approval at the 78th Ordinary General Meeting of Shareholders)
Matsuda Hiroyuki (松田 浩之)
Previous positionExecutive Officer, General Manager of the Administration Division and Deputy Head of the Corporate Planning Office
New positionDirector, General Manager of the Administration Division and Deputy Head of the Corporate Planning Office
Kasahara Hidemitsu (笠原 英充)
Previous positionExecutive Officer, Chief Technology Officer (CTO), General Manager of the Technology Division and General Manager of R&D Department 3
New positionDirector, Chief Technology Officer (CTO), General Manager of the Technology Division and General Manager of R&D Department 3
Yamamoto Satoshi (山本 聡)
Previous positionNot disclosed
New positionAudit & Supervisory Committee Member (Outside)

Departing officer

3 items
Tanii Michihiro (谷井 通宏)Next role stated
Former PositionFull-time Audit & Supervisory Board Member
New positionAudit and Supervisory Committee Member
Masuda Hiroaki (増田 博明)Next role stated
Former PositionOutside Corporate Auditor
New positionAudit & Supervisory Committee Member (Outside)
Ishii Takaaki (石井 隆明)Next role stated
Former PositionOutside Corporate Auditor
New positionAudit & Supervisory Committee Member (Outside)

“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.

Directors after the change9Number
Shareholders’ meeting approvalRequired. The Company plans to submit candidates for directors (excluding directors serving as Audit and Supervisory Committee members), candidates for directors serving as Audit and Supervisory Committee members, and candidates for substitute directors serving as Audit and Supervisory Committee members to the 78th Ordinary General Meeting of Shareholders scheduled for 25 June 2026.
Change in Corporate Governance Structure

Transition to a company with an audit and supervisory committee

Who is moving to which position
ItemDetails
Resolution date27 March 2026
Scheduled Appointment Date25 June 2026 (subject to approval at the 78th Ordinary General Meeting of Shareholders)
Name of appointeeMatsuda Hiroyuki (松田 浩之), Kasahara Hidemitsu (笠原 英充), Yamamoto Satoshi (山本 聡)
Appointee's new positionDirector, General Manager of the Administration Division and Deputy Head of the Corporate Planning Office, Director, Chief Technology Officer (CTO), General Manager of the Technology Division and General Manager of R&D Department 3, Audit & Supervisory Committee Member (Outside)
Appointee's previous positionExecutive Officer, General Manager of the Administration Division and Deputy Head of the Corporate Planning Office, Executive Officer, Chief Technology Officer (CTO), General Manager of the Technology Division and General Manager of R&D Department 3, Not disclosed
Name of departing officerTanii Michihiro (谷井 通宏), Masuda Hiroaki (増田 博明), Ishii Takaaki (石井 隆明)
Former position of departing officerFull-time Audit & Supervisory Board Member, Outside Corporate Auditor, Outside Corporate Auditor
New position of departing officerAudit and Supervisory Committee Member, Audit & Supervisory Committee Member (Outside), Audit & Supervisory Committee Member (Outside)
Number of directors after the change9 (including 4 outside directors)
Change in Corporate Governance StructureTransition to a company with an audit and supervisory committee
Subject to Approval by the General Meeting of ShareholdersRequired. The Company plans to submit candidates for directors (excluding directors serving as Audit and Supervisory Committee members), candidates for directors serving as Audit and Supervisory Committee members, and candidates for substitute directors serving as Audit and Supervisory Committee members to the 78th Ordinary General Meeting of Shareholders scheduled for 25 June 2026.
Items this document does not state (10)
Date of departureAppointee's date of birthYear the appointee joined the CompanyNumber of shares held by the appointeeReason for departureWhether the incumbent will remain in officeReason for changeReasons for appointmentFiling as an independent officerDetails of organizational changes

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 Company states that it has resolved and provisionally decided on the transition to a company with an Audit and Supervisory Committee and the officer appointments following the transition, but does not disclose specific reasons for the transition or the appointments.

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 Officer Appointments Following the Transition to a Company with an Audit and Supervisory Committee | Maruo Calcium Co.,Ltd. (4102) timely disclosure | Komori