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Changes in Officers5820MITSUBOSHI CO.,LTD.Iron & Steel, Nonferrous Metals

Notice Concerning Changes in Representative Directors (Additional Appointment) and Changes in Directors and Executive Officers

Effective 23 June 2026, Hanyu Shinobu (羽生 忍) is scheduled to be additionally appointed Representative Director and President, while Aoki Kunihiro (青木邦博) is scheduled to become Representative Director and Chairman. The appointment of 2 outside director candidates, the retirement and changes in positions of 3 directors, and a change involving 1 executive officer are also scheduled.

Worth reading
48Recurring
Scored from 4 of 5 sections
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 DateEffective 23 June 2026. The changes involving the Representative Directors and others are subject to being submitted to and formally approved at the 81st Annual General Meeting of Shareholders scheduled for the same date and at the Board of Directors meeting to be held thereafter.
Hanyu Shinobu (羽生 忍)
Previous positionDirector, responsible for production innovation
New positionRepresentative Director and President
生年月日 26 November 1962入社年 2023所有株式数 1,200 shares (record date: Not disclosed)
Nakaigawa Shunichi (中井川 俊一)
Previous positionNot disclosed
New positionOutside directors
生年月日 16 April 1963入社年 Not disclosed所有株式数 - shares (record date: Not disclosed)
Morii Jun (森井 じゅん)
Previous positionNot disclosed
New positionOutside Director, Audit and Supervisory Committee Member
生年月日 3 March 1980入社年 Not disclosed所有株式数 - shares (record date: Not disclosed)

Departing officer

3 items
Date of departure23 June 2026
Karasawa Toshitake (唐澤 利武)Next role stated
Former PositionDirector and Executive Vice President, responsible for business oversight and M&A; President, MITSUBOSHI PHILIPPINES CORPORATION
New positionRetirement
Watanabe Masayuki (渡邉 雅之)Next role stated
Former PositionOutside Director, Audit and Supervisory Committee Member
New positionRetirement
Kato Masanori (加藤 正憲)Next role stated
Former PositionOutside Director, Audit and Supervisory Committee Member
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)

Will not remain on the Board of Directors

Directors after the change6Number
Shareholders’ meeting approvalRequired. The changes involving the Representative Directors and others are scheduled to be submitted to the 81st Annual General Meeting of Shareholders to be held on 23 June 2026.
Reason for change

To further strengthen and enhance the management structure by having 2 Representative Directors.

Who is moving to which position
ItemDetails
Resolution date27 March 2026
Scheduled Appointment DateEffective 23 June 2026. The changes involving the Representative Directors and others are subject to being submitted to and formally approved at the 81st Annual General Meeting of Shareholders scheduled for the same date and at the Board of Directors meeting to be held thereafter.
Date of departure23 June 2026
Name of appointeeHanyu Shinobu (羽生 忍), Nakaigawa Shunichi (中井川 俊一), Morii Jun (森井 じゅん)
Appointee's new positionRepresentative Director and President, Outside directors, Outside Director, Audit and Supervisory Committee Member
Appointee's previous positionDirector, responsible for production innovation, Not disclosed, Not disclosed
Appointee's date of birth26 November 1962, 16 April 1963, 3 March 1980
Year the appointee joined the Company2023, Not disclosed, Not disclosed
Number of shares held by the appointee1,200 shares (record date: Not disclosed), - shares (record date: Not disclosed), - shares (record date: Not disclosed)
Name of departing officerKarasawa Toshitake (唐澤 利武), Watanabe Masayuki (渡邉 雅之), Kato Masanori (加藤 正憲)
Former position of departing officerDirector and Executive Vice President, responsible for business oversight and M&A; President, MITSUBOSHI PHILIPPINES CORPORATION, Outside Director, Audit and Supervisory Committee Member, Outside Director, Audit and Supervisory Committee Member
New position of departing officerRetirement, Retirement, Retirement
Whether the incumbent will remain in officeWill not remain on the Board of Directors
Reason for changeTo further strengthen and enhance the management structure by having 2 Representative Directors.
Number of directors after the change6 (including 4 outside directors)
Subject to Approval by the General Meeting of ShareholdersRequired. The changes involving the Representative Directors and others are scheduled to be submitted to the 81st Annual General Meeting of Shareholders to be held on 23 June 2026.
Items this document does not state (5)
Reason for departureReasons for appointmentFiling as an independent officerDetails 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.

To further strengthen and enhance the management structure by having 2 Representative Directors.

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 Concerning Changes in Representative Directors (Additional Appointment) and Changes in Directors and Executive Officers | MITSUBOSHI CO.,LTD. (5820) timely disclosure | Komori