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Changes in Officers5707Toho Zinc Co.,Ltd.Iron & Steel, Nonferrous Metals

Notice Regarding Changes in Representative Directors and Directors

The Representative Director, President and Executive Officer will change from Masato Ito (伊藤 正人) to Yoshikazu Sato (佐藤 義和). In addition, Hiroyuki Tsuboi (坪井 寛行) is scheduled to be newly appointed as an Outside Director.

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Who is moving to which position

Resolved 7 April 2026

Incoming appointee

2 items
Scheduled Appointment Date26 June 2026 (scheduled to be formally determined by resolutions at the 127th Annual General Meeting of Shareholders scheduled for the same day and at the Board of Directors meeting to be held after the conclusion of that meeting)
Yoshikazu Sato (佐藤 義和)
Previous positionDirector and Senior Managing Executive Officer, CRO and CLO
New positionRepresentative Director, President and Executive Officer, CRO and CLO
Hiroyuki Tsuboi (坪井 寛行)
Previous positionNot disclosed
New positionDirector (outside director)
Date of birth17 January 1967 (Yoshikazu Sato (佐藤 義和)) / Not disclosed (Hiroyuki Tsuboi (坪井 寛行))
Year joined the company1990 (Yoshikazu Sato (佐藤 義和)) / Not disclosed (Hiroyuki Tsuboi (坪井 寛行))
Number of shares held2,870 shares (record date Not disclosed, Yoshikazu Sato (佐藤 義和)) / Not disclosed (Hiroyuki Tsuboi (坪井 寛行))
Because the names and counts do not correspond, they are shown as reported without linking the counts to individual names.

Departing officer

1 item
Date of departure26 June 2026
Masato Ito (伊藤 正人)Next role stated
Former PositionRepresentative Director, President and Executive Officer
New position(Retirement)

“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 (retirement)

Directors after the change8Number
Shareholders’ meeting approvalRequired. To be formally determined by resolutions at the 127th Annual General Meeting of Shareholders scheduled for 26 June 2026 and at the Board of Directors meeting to be held after the conclusion of that meeting
Reason for change

To respond swiftly to changes in the business environment surrounding the Company, accelerate the implementation of the business rehabilitation plan, strengthen the competitiveness of the business structure and the financial base, and achieve sustainable growth of the Company Group and enhance corporate value

Who is moving to which position
ItemDetails
Resolution date7 April 2026
Scheduled Appointment Date26 June 2026 (scheduled to be formally determined by resolutions at the 127th Annual General Meeting of Shareholders scheduled for the same day and at the Board of Directors meeting to be held after the conclusion of that meeting)
Date of departure26 June 2026
Name of appointeeYoshikazu Sato (佐藤 義和), Hiroyuki Tsuboi (坪井 寛行)
Appointee's new positionRepresentative Director, President and Executive Officer, CRO and CLO, Director (outside director)
Appointee's previous positionDirector and Senior Managing Executive Officer, CRO and CLO, Not disclosed
Appointee's date of birth17 January 1967 (Yoshikazu Sato (佐藤 義和)) / Not disclosed (Hiroyuki Tsuboi (坪井 寛行))
Year the appointee joined the Company1990 (Yoshikazu Sato (佐藤 義和)) / Not disclosed (Hiroyuki Tsuboi (坪井 寛行))
Number of shares held by the appointee2,870 shares (record date Not disclosed, Yoshikazu Sato (佐藤 義和)) / Not disclosed (Hiroyuki Tsuboi (坪井 寛行))
Name of departing officerMasato Ito (伊藤 正人)
Former position of departing officerRepresentative Director, President and Executive Officer
New position of departing officer(Retirement)
Whether the incumbent will remain in officeWill not remain on the Board of Directors (retirement)
Reason for changeTo respond swiftly to changes in the business environment surrounding the Company, accelerate the implementation of the business rehabilitation plan, strengthen the competitiveness of the business structure and the financial base, and achieve sustainable growth of the Company Group and enhance corporate value
Number of directors after the change8, including 7 outside directors
Subject to Approval by the General Meeting of ShareholdersRequired. To be formally determined by resolutions at the 127th Annual General Meeting of Shareholders scheduled for 26 June 2026 and at the Board of Directors meeting to be held after the conclusion of that meeting
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 respond swiftly to changes in the business environment surrounding the Company, accelerate the implementation of the business rehabilitation plan, strengthen the competitiveness of the business structure and the financial base, and achieve sustainable growth of the Company Group and enhance corporate value.

How to read this page

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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 Representative Directors and Directors | Toho Zinc Co.,Ltd. (5707) timely disclosure | Komori