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Changes in Officers5310TOYO TANSO CO.,LTD.Construction and Materials

Notice Regarding Organizational Changes and Personnel Changes

Effective 1 October 2026, the Advanced Energy Department will be changed from the Production Headquarters to the Corporate Planning Headquarters. In addition, the positions and responsibilities of 7 people, including 4 executive officers, will be changed.

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Scale
7
People
Wording
Definitive
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Who is moving to which position

Resolved 18 September 2026

Incoming appointee

7 items
Scheduled Appointment Date1 October 2026
Shimada Masashi (島田 正志)
Previous positionSenior Executive Officer; General Manager, Technology Headquarters; responsible for the Development Planning Department, Application Engineering Department and Materials Development Department
New positionSenior Executive Officer; General Manager, Technology Headquarters; responsible for the Development Planning Department, Application Engineering Department, Analytical Research Department, Materials Development Department and Process Technology Development Department
Okubo Yuji (大久保 裕司)
Previous positionDeputy General Manager, Technical Headquarters; in charge of the Analytical Research Department; concurrently in charge of the Mechanical and Brush Development Department and the Process Technology Development Department
New positionExecutive Officer; General Manager, Administration Headquarters; General Manager, Secretariat Office
Takada Manabu (高多 学)
Previous positionExecutive Officer; Deputy General Manager, Corporate Planning Headquarters; General Manager, Planning Department; responsible for the Global Supply Chain Promotion Department, Global Business Strategy Department and Sustainability Promotion Department
New positionExecutive Officer; Deputy General Manager, Corporate Planning Headquarters; General Manager, Planning Department; responsible for the Global Supply Chain Promotion Department and Sustainability Promotion Department
Zushi Akinori (圖子 聴能)
Previous positionExecutive Officer; Deputy General Manager, Production Headquarters; responsible for the Processing Department, CC Materials Manufacturing Department and Advanced Energy Department
New positionExecutive Officer; Deputy General Manager, Production Headquarters; responsible for the Processing Department and CC Materials Manufacturing Department
Tomita Kazunobu (冨田 一伸)
Previous positionGeneral Manager, Global Business Strategy Department, Corporate Planning Headquarters
New positionDeputy General Manager, Corporate Planning Headquarters; General Manager, Global Business Strategy Department; General Manager, Advanced Energy Department
Takata Hirokazu (田片 弘和)
Previous positionExecutive Director; Deputy General Manager, Technology Headquarters; General Manager, Functional Materials Development Department
New positionExecutive Director; Deputy General Manager, Technology Headquarters; General Manager, Functional Materials Development Department; responsible for the Mechanical and Brush Development Department
Yuki Tetsuya (幸 哲也)
Previous positionDeputy General Manager, Materials Manufacturing Department, Production Headquarters
New positionGeneral Manager, PF Manufacturing Department, Production Headquarters
Details of organizational changes

The Advanced Energy Department will be changed from the Production Headquarters to the Corporate Planning Headquarters

Who is moving to which position
ItemDetails
Resolution date18 September 2026
Scheduled Appointment Date1 October 2026
Name of appointeeShimada Masashi (島田 正志), Okubo Yuji (大久保 裕司), Takada Manabu (高多 学), Zushi Akinori (圖子 聴能), Tomita Kazunobu (冨田 一伸), Takata Hirokazu (田片 弘和), Yuki Tetsuya (幸 哲也)
Appointee's new positionSenior Executive Officer; General Manager, Technology Headquarters; responsible for the Development Planning Department, Application Engineering Department, Analytical Research Department, Materials Development Department and Process Technology Development Department, Executive Officer; General Manager, Administration Headquarters; General Manager, Secretariat Office, Executive Officer; Deputy General Manager, Corporate Planning Headquarters; General Manager, Planning Department; responsible for the Global Supply Chain Promotion Department and Sustainability Promotion Department, Executive Officer; Deputy General Manager, Production Headquarters; responsible for the Processing Department and CC Materials Manufacturing Department, Deputy General Manager, Corporate Planning Headquarters; General Manager, Global Business Strategy Department; General Manager, Advanced Energy Department, Executive Director; Deputy General Manager, Technology Headquarters; General Manager, Functional Materials Development Department; responsible for the Mechanical and Brush Development Department, General Manager, PF Manufacturing Department, Production Headquarters
Appointee's previous positionSenior Executive Officer; General Manager, Technology Headquarters; responsible for the Development Planning Department, Application Engineering Department and Materials Development Department, Deputy General Manager, Technical Headquarters; in charge of the Analytical Research Department; concurrently in charge of the Mechanical and Brush Development Department and the Process Technology Development Department, Executive Officer; Deputy General Manager, Corporate Planning Headquarters; General Manager, Planning Department; responsible for the Global Supply Chain Promotion Department, Global Business Strategy Department and Sustainability Promotion Department, Executive Officer; Deputy General Manager, Production Headquarters; responsible for the Processing Department, CC Materials Manufacturing Department and Advanced Energy Department, General Manager, Global Business Strategy Department, Corporate Planning Headquarters, Executive Director; Deputy General Manager, Technology Headquarters; General Manager, Functional Materials Development Department, Deputy General Manager, Materials Manufacturing Department, Production Headquarters
Details of organizational changesThe Advanced Energy Department will be changed from the Production Headquarters to the Corporate Planning Headquarters
Items this document does not state (15)
Date of departureAppointee's date of birthYear the appointee joined the CompanyNumber of shares held by the appointeeName of departing officerFormer position of departing officerNew position of departing officerReason for departureWhether the incumbent will remain in officeReason for changeReasons for appointmentNumber of directors after the changeFiling as an independent officerChange in Corporate Governance StructureSubject to Approval by the General Meeting of Shareholders

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 strengthen strategic and agile business development in priority applications. No other reason is stated for the personnel changes.

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Notice Regarding Organizational Changes and Personnel Changes | TOYO TANSO CO.,LTD. (5310) timely disclosure | Komori