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Changes in Officers4091NIPPON SANSO HOLDINGS CORPORATIONMaterials and Chemicals

Notice Regarding Changes in Representative Directors and Officers

The president and CEO will change from Hamada Toshihiko (濱田 敏彦) to Watanabe Chuji (渡邉 忠治), who is currently Executive Vice President. Hamada Toshihiko (濱田 敏彦), the current president and CEO, is scheduled to become an adviser. In addition, the director position will change from vacant to Alan David Draper, and the part-time director position will change from Yabe Naoto (矢部 尚登) to vacant.

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Who is moving to which position

Resolved 27 April 2026

Incoming appointee

2 items
Scheduled Appointment DateEffective 17 June 2026. The appointment will be formally decided following the annual general meeting of shareholders scheduled for the same day and the subsequent meeting of the Board of Directors.
Watanabe Chuji (渡邉 忠治)
Previous positionExecutive Vice President, Executive Officer; Assistant to the President
New positionRepresentative Director, President and CEO
Alan David Draper
Previous positionNippon Sanso Matheson, Inc. Chairman & CEO
New positionDirector, Chairman & CEO, Nippon Sanso Matheson, Inc.
Date of birthWatanabe Chuji (渡邉 忠治): 22 March 1968. Alan David Draper: Not disclosed
Year joined the companyWatanabe Chuji (渡邉 忠治): 1992. Alan David Draper: Not disclosed
Number of shares heldWatanabe Chuji (渡邉 忠治): 4,100 shares (record date: Not disclosed). Alan David Draper: Not disclosed
Because the names and counts do not correspond, they are shown as reported without linking the counts to individual names.

Departing officer

2 items
Date of departure17 June 2026
Hamada Toshihiko (濱田 敏彦)Next role stated
Former PositionRepresentative Director, President and CEO
New positionAdviser
Yabe Naoto (矢部 尚登)Next role stated
Former PositionDirector (part-time)
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)

Hamada Toshihiko (濱田 敏彦): No statement that he will remain on the Board of Directors. Yabe Naoto (矢部 尚登): Will retire as a director.

Shareholders’ meeting approvalRequired. Formal approval will be given following the annual general meeting of shareholders scheduled for 17 June 2026 and the subsequent meeting of the Board of Directors.
Reason for change

Under its newly formulated medium-term management plan, “Next Innovation 2030 – Evolving for the Future –,” the Group is seeking to transition to its next stage of growth, with its key strategies being to strengthen the profitability of its industrial gas business, expand its electronics business and create future growth drivers. Based on the growth platform it has built to date, the Group believes it is important to steadily and swiftly implement each initiative set out in the medium-term management plan on a global basis. Accordingly, the representative director position will change from Hamada Toshihiko (濱田 敏彦) to Watanabe Chuji (渡邉 忠治) to transition to a structure that will further strengthen management execution.

Who is moving to which position
ItemDetails
Resolution date27 April 2026
Scheduled Appointment DateEffective 17 June 2026. The appointment will be formally decided following the annual general meeting of shareholders scheduled for the same day and the subsequent meeting of the Board of Directors.
Date of departure17 June 2026
Name of appointeeWatanabe Chuji (渡邉 忠治), Alan David Draper
Appointee's new positionRepresentative Director, President and CEO, Director, Chairman & CEO, Nippon Sanso Matheson, Inc.
Appointee's previous positionExecutive Vice President, Executive Officer; Assistant to the President, Nippon Sanso Matheson, Inc. Chairman & CEO
Appointee's date of birthWatanabe Chuji (渡邉 忠治): 22 March 1968. Alan David Draper: Not disclosed
Year the appointee joined the CompanyWatanabe Chuji (渡邉 忠治): 1992. Alan David Draper: Not disclosed
Number of shares held by the appointeeWatanabe Chuji (渡邉 忠治): 4,100 shares (record date: Not disclosed). Alan David Draper: Not disclosed
Name of departing officerHamada Toshihiko (濱田 敏彦), Yabe Naoto (矢部 尚登)
Former position of departing officerRepresentative Director, President and CEO, Director (part-time)
New position of departing officerAdviser, Retirement
Whether the incumbent will remain in officeHamada Toshihiko (濱田 敏彦): No statement that he will remain on the Board of Directors. Yabe Naoto (矢部 尚登): Will retire as a director.
Reason for changeUnder its newly formulated medium-term management plan, “Next Innovation 2030 – Evolving for the Future –,” the Group is seeking to transition to its next stage of growth, with its key strategies being to strengthen the profitability of its industrial gas business, expand its electronics business and create future growth drivers. Based on the growth platform it has built to date, the Group believes it is important to steadily and swiftly implement each initiative set out in the medium-term management plan on a global basis. Accordingly, the representative director position will change from Hamada Toshihiko (濱田 敏彦) to Watanabe Chuji (渡邉 忠治) to transition to a structure that will further strengthen management execution.
Subject to Approval by the General Meeting of ShareholdersRequired. Formal approval will be given following the annual general meeting of shareholders scheduled for 17 June 2026 and the subsequent meeting of the Board of Directors.
Items this document does not state (6)
Reason for departureReasons for appointmentNumber of directors after the changeFiling 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 transition to a structure that will further strengthen management execution by implementing each initiative under the medium-term management plan, “Next Innovation 2030 – Evolving for the Future –,” steadily and swiftly on a global basis.

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Notice Regarding Changes in Representative Directors and Officers | NIPPON SANSO HOLDINGS CORPORATION (4091) timely disclosure | Komori