Board Members and Executive Officers

Directors other than those who are Audit & Supervisory Committee Members

Toru Kimura

Representative Director, President and CEO
Career
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April 1989

Joined Sumitomo Chemical Co., Ltd.

October 1992

Joined the former Sumitomo Pharmaceuticals Co., Ltd.

September 2013

Vice President, Head of the Regenerative & Cellular Medicine Office of the Company

April 2015

Executive Officer of the Company

June 2016

Member of the Board of Directors and Executive Officer of the Company

April 2019

Member of the Board of Directors and Managing Executive Officer of the Company

April 2021

Representative Director and Senior Managing Executive Officer of the Company

June 2024

Representative Director, President and CEO of the Company (up to the present)
Motoyuki Sakai

Representative Director, Executive Vice President
Global Corporate Strategy; Global Finance Administration
External Affairs; Corporate Governance; IT Management & Data Analytics
Career
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April 1985

Joined Sumitomo Chemical Co., Ltd.

June 2007

General Manager, Finance & Accounting Office (Accounting) of Sumitomo Chemical Co., Ltd.

July 2010

General Manager, Corporate Planning & Coordination Office (Corporate Planning) of Sumitomo Chemical Co., Ltd.

April 2013

General Manager, Corporate Planning & Coordination Office (Business Development) of Sumitomo Chemical Co., Ltd.

April 2014

Executive Officer of Sumitomo Chemical Co., Ltd.

April 2018

Managing Executive Officer of Sumitomo Chemical Co., Ltd.

April 2018

President and Representative Director of Sumitomo Chemical Asia Pte Ltd

April 2023

Senior Managing Executive Officer of Sumitomo Chemical Co., Ltd.

June 2023

Representative Director and Senior Managing Executive Officer of Sumitomo Chemical Co., Ltd.

June 2024

Representative Director and Executive Vice President of the Company (up to the present)
Tsutomu Nakagawa

Member, Board of Directors, Managing Executive Officer
North America Business
President and CEO, Sumitomo Pharma America, Inc.
Career
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April 1993

Joined the former Sumitomo Pharmaceuticals Co., Ltd.

April 2016

Senior Officer of Global Oncology of the Company

April 2017

Senior Officer of Global Oncology (Development Strategy) of the Company

April 2019

Vice President, Head of the Global Oncology Office of the Company

April 2020

Vice President, Head of Global Corporate Strategy of the Company

April 2022

Executive Officer of the Company

July 2023

Chief Strategy Officer of Sumitomo Pharma America, Inc.

April 2024

President and CEO of Sumitomo Pharma America, Inc. (up to the present)

June 2024

Member of the Board of Directors and Executive Officer of the Company

April 2025

Member of the Board of Directors and Managing Executive Officer of the Company (up to the present)
Hiroshi Niinuma

Member, Board of Directors
Career
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April 1981

Joined Sumitomo Chemical Co., Ltd.

April 2006

General Manager, Personnel Office of Sumitomo Chemical Co., Ltd.

April 2007

General Manager, Human Resources Department of Sumitomo Chemical Co., Ltd.

April 2009

General Manager, General Affairs Department of Sumitomo Chemical Co., Ltd.

April 2010

Executive Officer of Sumitomo Chemical Co., Ltd.

April 2013

Managing Executive Officer of Sumitomo Chemical Co., Ltd.

April 2018

Senior Managing Executive Officer of Sumitomo Chemical Co., Ltd.

June 2018

Director and Senior Managing Executive Officer of Sumitomo Chemical Co., Ltd.

April 2022

Director and Executive Vice President of Sumitomo Chemical Co., Ltd. (up to the present)

June 2024

Member of the Board of Directors of the Company (up to the present)
Minoru Usui

Member, Board of Directors (Outside)
Career
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November 1979

Joined Shinshu Seiki Co., Ltd. (currently, Seiko Epson Corporation)

June 2002

Director of Seiko Epson Corporation

November 2005

General Administrative Manager of the Production Engineering & Development Division of Seiko Epson Corporation

July 2007

General Administrative Manager of the Corporate Research & Development Division of Seiko Epson Corporation

October 2007

Managing Director of Seiko Epson Corporation

June 2008

President and Representative Director of Seiko Epson Corporation, Chief Executive Officer of Seiko Epson Corporation

April 2020

Chairman and Director of Seiko Epson Corporation

June 2021

Member of the Board of Directors (Outside Director) of the Company (up to the present)

June 2021

Outside Director of IHI Corporation (up to the present)
Koji Fujimoto

Member, Board of Directors (Outside)
Career
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April 1987

Joined the Ministry of International Trade and Industry (MITI)
(currently the Ministry of Economy, Trade and Industry (METI))

July 2003

Director of the Medical and Assistive Device Industries Office of METI

July 2008

Director of the Service Industries Division of METI (Director of the Healthcare Industries Division after organizational revision in July 2011)

July 2012

Counsellor of the Cabinet Secretariat (Office of Healthcare Policy, etc.)

July 2015

Councillor of the Cabinet Secretariat (Assistant Director of the Office of Healthcare Policy)

August 2019

Specially Appointed Professor at Tokyo Medical and Dental University (currently, Institute of Science Tokyo) (up to the present)

August 2019

Senior URA of the Research University Promotion Organization of Tokyo Medical and Dental University (currently, Institute of Science Tokyo)

August 2019

Deputy Director of the Research Center for Industry Alliances (the Open Innovation Center of the Institute of Research Innovation, after reorganization in March 2023) of Tokyo Medical and Dental University (currently, Institute of Science Tokyo)

June 2022

Member of the Board of Directors (Outside Director) of the Company (up to the present)

March 2023

Deputy Director/Senior URA of the Open Innovation Center of the Institute of Research Innovation of Tokyo Medical and Dental University (currently, Institute of Science Tokyo)

March 2023

Director of Emergency Assistance Japan Co., Ltd.

October 2024

Senior URA of the Center for Medical Innovation of Institute of Science Tokyo (up to the present)

March 2025

Advisor of Emergency Assistance Japan Co., Ltd. (up to the present)

Directors who are Audit & Supervisory Committee Members

Hisayoshi Kashima

Member, Board of Directors, Audit and Supervisory Committee Member
Career
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April 1985

Joined the former Sumitomo Pharmaceuticals Co., Ltd.

June 2007

Vice President, Head of Finance & Accounting of the Company

April 2012

Member, Board of Directors of Sumitomo Pharma (Suzhou) Co., Ltd.

April 2014

Vice President, Head of Finance & Accounting of the Company

June 2023

Full-time Audit & Supervisory Board Member of the Company

June 2025

Directors who are Audit & Supervisory Committee Members (up to the present)
Yoshio Iteya

Member, Board of Directors, Audit and Supervisory Committee Member (Outside)
Career
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April 1983

Admitted to the Bar (Japan)

April 1989

Admitted to the Bar (New York)

January 1992

Partner at Mori Hamada & Matsumoto

April 2004

Specially Appointed Professor at Hitotsubashi University School of Law (up to the present)

June 2018

Outside Audit & Supervisory Board Member of the Company

January 2021

Partner at Anderson Mori & Tomotsune (up to the present)

June 2024

Outside Audit & Supervisory Board Member of FUJIFILM Holdings Corporation (up to the present)

June 2025

Directors who are Audit & Supervisory Committee Members of the Company (up to the present)
Mayumi Mochizuki

Member, Board of Directors, Audit and Supervisory Committee Member (Outside)
Career
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April 1976

Joined Nippon Roche K.K. (currently, Chugai Pharmaceutical Co., Ltd.)

April 1983

Joined the Department of Pharmacy of Kitasato University Hospital

April 1997

Associate Professor at the Graduate School of Pharmaceutical Sciences of Chiba University

September 2000

Professor at the School of Pharmacy of Kitasato University

April 2007

Professor at Kyoritsu University of Pharmacy

April 2008

Professor at the Faculty of Pharmacy of Keio University

April 2009

Associate Dean in Pharmacy at the Graduate School of Pharmaceutical Sciences of Keio University

July 2013

Dean of the Faculty of Pharmacy and Dean of the Graduate School of Pharmaceutical Sciences of Keio University

October 2015

Director of the Department of Pharmacy at Keio University Hospital

April 2019

Professor Emeritus at Keio University (up to the present)

April 2019

Project Professor at the Faculty of Pharmacy of Keio University

April 2019

Adviser of the International Medical Information Center (up to the present)

April 2020

Special Adviser of the International University of Health and Welfare

October 2020

Vice President of Science Council of Japan

June 2021

Outside Audit & Supervisory Board Member of the Company

June 2025

Directors who are Audit & Supervisory Committee Members of the Company (up to the present)
Daishiro Michimori

Member, Board of Directors, Audit and Supervisory Committee Member (Outside)
Career
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April 1979

Joined the Ministry of Finance

October 2010

Councillor of the Cabinet Secretariat (National Policy Unit)

August 2012

Regional Commissioner of the Tokyo Regional Taxation Bureau

July 2014

Director-General for Policy Planning of the Ministry of Land, Infrastructure, Transport and Tourism

April 2016

Admitted to the Bar (Japan)

April 2016

Advisor Attorney of TMI Associates

April 2016

Managing Director of the Institute of Daiwa Institute of Research Ltd.

June 2016

Outside Member of the Board of World Co., Ltd.

April 2018

Senior Managing Director of the Institute of Daiwa Institute of Research Ltd.

April 2021

Visiting Attorney of Shimada Hamba & Osajima (up to the present)

April 2022

Senior Advisor of Daiwa Institute of Research Ltd.

June 2022

Outside Audit & Supervisory Board Member of the Company

June 2025

Directors who are Audit & Supervisory Committee Members of the Company (up to the present)

Executive Officers

Hideyuki Harada

Managing Executive Officer
Supply Chain Division
Senior Vice President, Head of Supply Chain Division
Head of Japan Business Unit
Yumi Sato

Managing Executive Officer
Research and Development Division
Senior Vice President, Head of Research and Development Division
Chief Development Officer, Sumitomo Pharma America, Inc.
Koichi Kozuki

Executive Officer
Business Development & Management;
Corporate Regulatory Compliance & Quality Assurance Division
Senior Vice President, Head of Corporate Regulatory Compliance & Quality Assurance Division
Deputy Head of Japan Business Unit
Isao Shimizu

Executive Officer
Senior Vice President, Deputy Head of Corporate Regulatory Compliance & Quality Assurance Division
Senior Vice President, Deputy Head of Research and Development Division (Drug Discovery Research)
Kenji Ueno

Executive Officer
Senior Vice President, Deputy Head of Research and Development Division (CMC)
Yutaka Wakemi

Executive Officer
Global Corporate Strategy; Global Finance
Koji Yamazaki

Executive Officer
Sales & Marketing Division
Senior Vice President, Head of Sales & Marketing Division
Deputy Head of Japan Business Unit
Kimihiro Mizuno

Executive Officer
Legal & Compliance; Intellectual Property; Human Resources