Taiyo Holdings Co., Ltd. announced that it has resolved at the Board of Directors meeting held on March 15, 2024, to change the personnel as follows. On April 1, 2024: Sayaka Tomioka: Current: Executive Officer, General Manager of Corporate Planning Department, Taiyo America Inc. Board Director, Taiyo Pharma Co., Ltd. Board Director, and Taiyo Pharma Tech Co., Ltd. Board Director. New: Managing Executive Officer, Chief Financial Officer, General Manager of Corporate Planning Department, Taiyo America Inc. Board Director, Taiyo Pharma Co., Ltd. Board Director, and Taiyo Pharma Tech Co., Ltd. Board Director.

In June, 2024: Masao Arima: Current: Board Director- Scheduled to resign after the 78th Ordinary General Shareholders' Meeting, CBDO of Medical & Pharmaceutical Company, Board Director of Taiyo Fine Chemical Co., Ltd., Representative Director and COO of Taiyo Pharma Co., Ltd., and Board Director of Taiyo Pharma Tech Co., Ltd. New: Senior Corporate Executive Officer - Scheduled to assume after the 78th Ordinary General Shareholders' Meeting, CBDO of Medical & Pharmaceutical Company, Board Director of Taiyo Fine Chemical Co., Ltd., Representative Director and COO of Taiyo Pharma Co., Ltd., and Board Director of Taiyo Pharma Tech Co., Ltd. Shoji Minegishi: Current: Senior Managing Executive Officer, Chief Technology Officer of Electronics Company, President of Taiyo Ink Mfg. Co., Ltd., Board Director of Taiyo Ink (Suzhou) Co., Ltd., Chairman/CEO of Taiyo Ink Mfg. Co., (Korea) Ltd., and Chairman/CEO of Taiyo Ink Products Co., Ltd. New: Senior Corporate Executive Officer - Scheduled to assume after the 78th Ordinary General Shareholders' Meeting, Chief Technology Officer of Electronics Company, President of Taiyo Ink Mfg.

Co., Ltd., Board Director of Taiyo Ink (Suzhou) Co., Ltd., Chairman/CEO of Taiyo Ink Mfg. Co., (Korea) Ltd., and Chairman/CEO of Taiyo Ink Products Co., Ltd.