Taiyo Holdings Co., Ltd. announced that it has resolved at the Board of Directors meeting held on May 12, 2023, to change in responsibility of directors as follows. Name: Masao Arima. Current Responsibility: Board Director of CBDO of Medical & Pharmaceutical Company.

Representative Director and Coo of Taiyo Pharma Co., Ltd. Board Director of Taiyo Fine Chemical Co., Ltd. Member of the Board of Taiyo Pharma Tech Co., Ltd. New Responsibility: Board Director of CBDO of Medical & Pharmaceutical Company. Representative Director and Coo of Taiyo Pharma Co., Ltd. Board Director of Taiyo Fine Chemical Co., Ltd. Member of the Board of Taiyo Pharma Tech Co., Ltd. President of Ricc Co., Ltd. Name: Eiji Sato. Current Responsibility: President, Group Chief Executive Officer (CEO) and Risk Management Officer.

CEO of Medical & Pharmaceutical Company. Board Director of Taiyo Ink Mfg. Co., Ltd. Board Director of Taiyo Ink (Suzhou) Co., Ltd. Board Director of Onstatic Technology Co., Ltd. Chairman and Representative Director of Taiyo Pharma Co., Ltd. Board Director of funlead corp.

President and Representative Director of Taiyo Pharma Tech Co., Ltd. New Responsibility: President, Group Chief Executive Officer (CEO) and Risk Management Officer. Chairman and Representative Director of Taiyo Pharma Co., Ltd. Board Director of funlead corp. President and Representative Director of Taiyo Pharma Tech Co., Ltd. Name: Eiji Takehara.

Current Responsibility: Board Director, Compliance Officer, Chairman of the Board of Directors. Officer in charge of R&D Division. Board Director of Taiyo Green Energy Co., Ltd. New Responsibility: Board Director, Compliance Officer, Chairman of the Board of Directors.

Officer in charge of R&D Division. Board Director of Taiyo Ink Mfg. Co., Ltd. Board Director of Taiyo Ink (Suzhou) Co., Ltd. Board Director of Onstatic Technology Co., Ltd. Board Director of Taiyo Green Energy Co., Ltd.