Notice Regarding Personnel Changes | TAIYO HOLDINGS CO.,LTD. (4626) timely disclosure

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Who is moving to which position

Resolved 30 April 2026

Incoming appointee

7 items

Scheduled Appointment DateEffective 1 May 2026 and June 2026. For matters requiring procedures at the relevant subsidiaries, the appointments or resignations are scheduled to take effect after those procedures have been completed.

Goto Hideyuki (後藤英之)

Previous positionSenior Executive Officer and Head of the Research Division / Representative Director and Chairman of 太陽ファインケミカル株式会社 / Representative Director and Chairman of 太陽グリーンエナジー株式会社

New positionSenior Executive Officer and Head of the Research Division / Representative Director and Chairman of 太陽ファインケミカル株式会社 / Representative Director and President of 太陽グリーンエナジー株式会社

Minegishi Shoji (峰岸昌司)

Previous positionSenior Managing Executive Officer and CTO of the Electronics Company / Representative Director and President of 太陽インキ製造株式会社 / Chairman of 太陽油墨 (蘇州) 有限公司 / Chairman of 太陽油墨貿易(深圳)有限公司 / Director of 台湾太陽油墨股份有限公司 / Representative Chairman and CEO of 韓国タイヨウインキ株式会社 / Director of 永勝泰科技股份有限公司 / Representative Chairman and CEO of 太陽インキプロダクツ株式会社 / Director of 太陽ファインケミカル株式会社 / Director of 永盛泰新材料(江西)有限公司

New positionSenior Managing Executive Officer and CTO of the Electronics Company / Representative Director and President of 太陽インキ製造株式会社 / Chairman of 太陽油墨 (蘇州) 有限公司 / Chairman of 太陽油墨貿易(深圳)有限公司 / Director of 台湾太陽油墨股份有限公司 / Representative Chairman and CEO of 韓国タイヨウインキ株式会社 / Director of 永勝泰科技股份有限公司 / Representative Chairman and CEO of 太陽インキプロダクツ株式会社 / Director of 太陽ファインケミカル株式会社 / Chairman of TAIYO INK VIETNAM CO., LTD. / Director of 永盛泰新材料(江西)有限公司

Onishi Taro (大西太郎)

Previous positionManaging Executive Officer / Director and General Manager of 太陽油墨（蘇州）有限公司 / Managing Director of TAIYO INK INTERNATIONAL（HK）LIMITED / Director and General Manager of 太陽油墨貿易（深圳）有限公司 / Director of 永盛泰新材料（江西）有限公司 / Director and General Manager of 泰必豊半导体材料（深圳）有限公司

New positionManaging Executive Officer / Director and General Manager of 太陽油墨（蘇州）有限公司 / Managing Director of TAIYO INK INTERNATIONAL（HK）LIMITED / Director and General Manager of 太陽油墨貿易（深圳）有限公司 / Director of 台湾太陽油墨股份有限公司 / Director of TAIYO INK INTERNATIONAL (SINGAPORE) PTE LTD / Director of 永勝泰科技股份有限公司 / Director of TAIYO TRADING (THAILAND) CO., LTD. / Director of TAIYO INK VIETNAM CO., LTD. / Director of 永盛泰新材料（江西）有限公司 / Director and General Manager of 泰必豊半导体材料（深圳）有限公司

Miyabe Hidekazu (宮部英和)

Previous positionSenior Executive Officer / Director of 太陽インキ製造株式会社 / Representative Director and President of 太陽ファインケミカル株式会社

New positionSenior Executive Officer / Representative Director and Vice President of 太陽インキ製造株式会社 / Representative Director and President of 太陽ファインケミカル株式会社

Arima Masao (有馬聖夫)

Previous positionSenior Executive Officer and CBDO of the Healthcare and Pharmaceuticals Company / Director of 太陽ファインケミカル / Representative Director and President of 株式会社マイ・スターズ

New positionSenior Executive Officer and CBDO of the Healthcare and Pharmaceuticals Company / Representative Director and President of 株式会社マイ・スターズ

Bae Hyeong-gi (裵炯基)

Previous positionExecutive Officer / Representative Director and President and COO of 韓国タイヨウインキ株式会社

New positionExecutive Officer / Supervisor of 韓国タイヨウインキ株式会社

Yoshino Yukiko (吉野由季子)

Previous positionExecutive Officer and Chief Branding Officer / Head of the President's Office / Director of 太陽ファルマテック株式会社 / Director of 株式会社マイ・スターズ

New positionExecutive Officer and Chief Branding Officer / Head of the President's Office / Director of 株式会社マイ・スターズ

Details of organizational changes

The President's Office is scheduled to be renamed the Public Relations/Brand Marketing Office effective 1 May 2026.

Who is moving to which position
Item	Details
Resolution date	30 April 2026
Scheduled Appointment Date	Effective 1 May 2026 and June 2026. For matters requiring procedures at the relevant subsidiaries, the appointments or resignations are scheduled to take effect after those procedures have been completed.
Name of appointee	Goto Hideyuki (後藤英之), Minegishi Shoji (峰岸昌司), Onishi Taro (大西太郎), Miyabe Hidekazu (宮部英和), Arima Masao (有馬聖夫), Bae Hyeong-gi (裵炯基), Yoshino Yukiko (吉野由季子)
Appointee's new position	Senior Executive Officer and Head of the Research Division / Representative Director and Chairman of 太陽ファインケミカル株式会社 / Representative Director and President of 太陽グリーンエナジー株式会社, Senior Managing Executive Officer and CTO of the Electronics Company / Representative Director and President of 太陽インキ製造株式会社 / Chairman of 太陽油墨 (蘇州) 有限公司 / Chairman of 太陽油墨貿易(深圳)有限公司 / Director of 台湾太陽油墨股份有限公司 / Representative Chairman and CEO of 韓国タイヨウインキ株式会社 / Director of 永勝泰科技股份有限公司 / Representative Chairman and CEO of 太陽インキプロダクツ株式会社 / Director of 太陽ファインケミカル株式会社 / Chairman of TAIYO INK VIETNAM CO., LTD. / Director of 永盛泰新材料(江西)有限公司, Managing Executive Officer / Director and General Manager of 太陽油墨（蘇州）有限公司 / Managing Director of TAIYO INK INTERNATIONAL（HK）LIMITED / Director and General Manager of 太陽油墨貿易（深圳）有限公司 / Director of 台湾太陽油墨股份有限公司 / Director of TAIYO INK INTERNATIONAL (SINGAPORE) PTE LTD / Director of 永勝泰科技股份有限公司 / Director of TAIYO TRADING (THAILAND) CO., LTD. / Director of TAIYO INK VIETNAM CO., LTD. / Director of 永盛泰新材料（江西）有限公司 / Director and General Manager of 泰必豊半导体材料（深圳）有限公司, Senior Executive Officer / Representative Director and Vice President of 太陽インキ製造株式会社 / Representative Director and President of 太陽ファインケミカル株式会社, Senior Executive Officer and CBDO of the Healthcare and Pharmaceuticals Company / Representative Director and President of 株式会社マイ・スターズ, Executive Officer / Supervisor of 韓国タイヨウインキ株式会社, Executive Officer and Chief Branding Officer / Head of the President's Office / Director of 株式会社マイ・スターズ
Appointee's previous position	Senior Executive Officer and Head of the Research Division / Representative Director and Chairman of 太陽ファインケミカル株式会社 / Representative Director and Chairman of 太陽グリーンエナジー株式会社, Senior Managing Executive Officer and CTO of the Electronics Company / Representative Director and President of 太陽インキ製造株式会社 / Chairman of 太陽油墨 (蘇州) 有限公司 / Chairman of 太陽油墨貿易(深圳)有限公司 / Director of 台湾太陽油墨股份有限公司 / Representative Chairman and CEO of 韓国タイヨウインキ株式会社 / Director of 永勝泰科技股份有限公司 / Representative Chairman and CEO of 太陽インキプロダクツ株式会社 / Director of 太陽ファインケミカル株式会社 / Director of 永盛泰新材料(江西)有限公司, Managing Executive Officer / Director and General Manager of 太陽油墨（蘇州）有限公司 / Managing Director of TAIYO INK INTERNATIONAL（HK）LIMITED / Director and General Manager of 太陽油墨貿易（深圳）有限公司 / Director of 永盛泰新材料（江西）有限公司 / Director and General Manager of 泰必豊半导体材料（深圳）有限公司, Senior Executive Officer / Director of 太陽インキ製造株式会社 / Representative Director and President of 太陽ファインケミカル株式会社, Senior Executive Officer and CBDO of the Healthcare and Pharmaceuticals Company / Director of 太陽ファインケミカル / Representative Director and President of 株式会社マイ・スターズ, Executive Officer / Representative Director and President and COO of 韓国タイヨウインキ株式会社, Executive Officer and Chief Branding Officer / Head of the President's Office / Director of 太陽ファルマテック株式会社 / Director of 株式会社マイ・スターズ
Details of organizational changes	The President's Office is scheduled to be renamed the Public Relations/Brand Marketing Office effective 1 May 2026.

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.

The notice states that the appointments or resignations are scheduled to take effect after the necessary procedures have been completed at each subsidiary. No reason is provided for the personnel changes themselves.

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