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Changes in Directors and Officers5449OSAKA STEEL CO.,LTD.Iron and steel and non-ferrous metals

Notice Regarding Changes in Officers

Around the time of the annual general meeting of shareholders scheduled for late June 2026, the candidates for directors and audit & supervisory board members will be changed, and some executive officers and advisors will also change or be promoted. The president will be reappointed, and one of the retiring directors is scheduled to become a senior executive officer.

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Who is moving to which position

Resolved 28 April 2026

Incoming appointee

6 items
Scheduled Appointment DateAfter the conclusion of the 48th Annual General Meeting of Shareholders scheduled for late June 2026 and the subsequent meeting of the Board of Directors (executive officers and advisors: effective as of the date of the 48th Annual General Meeting of Shareholders). The changes are scheduled to be formally decided at the general meeting of shareholders and the subsequent meeting of the Board of Directors.
Horii Kazuhiro (堀井 和弘)
New positionDirector (responsible for safety, environmental and disaster prevention matters and procurement and subcontractor management; concurrently serving as General Manager of the Production Engineering Department)
Kaneko Keiko (金子 啓子)
New positionDirector (outside director)
Nagai Naoko (永井 尚子)
New positionAudit & Supervisory Board Member (Outside Audit & Supervisory Board Member)
Kishimoto Tatsushi (岸本 達司)
New positionSubstitute Audit & Supervisory Board Member (outside audit & supervisory board member)
Imanaka Kazuo (今中 一雄)
New positionSenior Executive Officer (concurrently serving as Representative Director and President of 東京鋼鐵㈱)
Sugiyama Hirokazu (杉山 博一)
New positionAdvisor (General Manager of the Product Planning Department)

Departing officer

5 items
Date of departureThe date of the 48th Annual General Meeting of Shareholders scheduled for late June 2026
Imanaka Kazuo (今中 一雄)Next role stated
Former PositionDirectors
New positionSenior Executive Officer of the Company
Ishikawa Hiro Nob (石川 博紳)Stepping down
Former PositionDirectors
New positionNot disclosed
Takami Shuichi (髙見 秀一)Stepping down
Former PositionStatutory Auditors
New positionNot disclosed
Arai Yasuhisa (新井 康久)Next role stated
Former PositionExecutive officers
New positionRetirement
Nomura Taisuke (野村 泰介)Next role stated
Former PositionAdviser
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)

Imanaka Kazuo (今中 一雄) will remain with the Company as a senior executive officer. No information is provided regarding the other retiring officers.

Directors after the change6Number
Shareholders’ meeting approvalRequired. Proposals concerning the candidates for directors, audit & supervisory board members and substitute audit & supervisory board members are scheduled to be submitted to the 48th Annual General Meeting of Shareholders, which is scheduled to be held in late June 2026.
Who is moving to which position
ItemDetails
Resolution date28 April 2026
Scheduled Appointment DateAfter the conclusion of the 48th Annual General Meeting of Shareholders scheduled for late June 2026 and the subsequent meeting of the Board of Directors (executive officers and advisors: effective as of the date of the 48th Annual General Meeting of Shareholders). The changes are scheduled to be formally decided at the general meeting of shareholders and the subsequent meeting of the Board of Directors.
Date of departureThe date of the 48th Annual General Meeting of Shareholders scheduled for late June 2026
Name of appointeeHorii Kazuhiro (堀井 和弘), Kaneko Keiko (金子 啓子), Nagai Naoko (永井 尚子), Kishimoto Tatsushi (岸本 達司), Imanaka Kazuo (今中 一雄), Sugiyama Hirokazu (杉山 博一)
Appointee's new positionDirector (responsible for safety, environmental and disaster prevention matters and procurement and subcontractor management; concurrently serving as General Manager of the Production Engineering Department), Director (outside director), Audit & Supervisory Board Member (Outside Audit & Supervisory Board Member), Substitute Audit & Supervisory Board Member (outside audit & supervisory board member), Senior Executive Officer (concurrently serving as Representative Director and President of 東京鋼鐵㈱), Advisor (General Manager of the Product Planning Department)
Name of departing officerImanaka Kazuo (今中 一雄), Ishikawa Hiro Nob (石川 博紳), Takami Shuichi (髙見 秀一), Arai Yasuhisa (新井 康久), Nomura Taisuke (野村 泰介)
Former position of departing officerDirectors, Directors, Statutory Auditors, Executive officers, Adviser
New position of departing officerSenior Executive Officer of the Company, Not disclosed, Not disclosed, Retirement, Retirement
Whether the incumbent will remain in officeImanaka Kazuo (今中 一雄) will remain with the Company as a senior executive officer. No information is provided regarding the other retiring officers.
Number of directors after the change6 (including 3 outside directors)
Subject to Approval by the General Meeting of ShareholdersRequired. Proposals concerning the candidates for directors, audit & supervisory board members and substitute audit & supervisory board members are scheduled to be submitted to the 48th Annual General Meeting of Shareholders, which is scheduled to be held in late June 2026.
Items this document does not state (10)
Appointee's previous positionAppointee's date of birthYear the appointee joined the CompanyNumber of shares held by the appointeeReason for departureReason for changeReasons 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.

No specific reason for the changes is provided.

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 Officers | OSAKA STEEL CO.,LTD. (5449) timely disclosure | Komori