Directors and Audit & Supervisory Board Members

As of June 25, 2025

President & CEO YAMAJI Naoki

View Full Profile

Career Profile

Apr. 1991

Joined the Company

Apr. 2013

General Manager in charge of Planning Department, Yokkaichi Reorganization Division, Production Control Headquarters

Apr. 2014

General Manager of COO Office

Apr. 2015

Executive General Manager of Plastic Materials Business Division, Business Headquarters

Apr. 2016

Concurrently in charge of Tokyo Headquarters

Apr. 2017

Executive General Manager in charge of Corporate Planning Headquarters

Jun. 2017

Director and in charge of Personnel & General Affairs Headquarters

Apr. 2018

Concurrently in charge of Production Control Headquarters

Apr. 2020

Managing Director
Administrative Supervisor

Apr. 2021

R&D Supervisor

Apr. 2022

President & CEO (current)
Representative Senior Managing Director & CFO SHIMIZU Shinji

View Full Profile

Career Profile

Apr. 1992

Joined the Company

Apr. 2014

General Manager of Personnel & General Affairs Department, Personnel & General Affairs Division

Apr. 2016

General Manager of Shuang Yi Li (Tianjin) New Energy Co., Ltd.

Apr. 2018

Board Director of Shuang Yi Li (Tianjin) New Energy Co., Ltd.

Jun. 2019

General Manager of Financial Division, Financial Headquarters

Apr. 2020

Executive Officer
Executive General Manager in charge of Production Headquarters

Apr. 2022

Administrative Supervisor

Jun. 2022

Director

Apr. 2025

Representative Managing Director & CFO

Apr. 2026

Representative Senior Managing Director & CFO (current)
Director SAKAMOTO Mami

View Full Profile

Career Profile

Apr. 1988

Joined the Company

Apr. 2018

General Manager of President’s Special Mission Office

Dec. 2018

General Manager of Public & Investor Relations Department

Apr. 2019

General Manager of Public & Investor Relations Department, Corporate Planning Headquarters

Apr. 2020

Executive General Manager
Senior Executive General Manager of Administrative Headquarters

Apr. 2021

Executive General Manager of Public & Investor Relations Department

Apr. 2023

Executive General Manager of Strategy Headquarters
Concurrently Senior Executive General Manager of Life Sciences Headquarters

Apr. 2024

Senior Executive General Manager (current)

Apr. 2025

Senior Executive General Manager of Administrative Headquarters (current)

Jun. 2025

Director (current)
Director KITAO Masahiro

View Full Profile

Career Profile

Apr. 2005

Joined the Company

Apr. 2020

General Manager of Vehicles, Electronics & IT Materials Sales Department

Oct. 2022

Concurrently in charge of Nagoya Office

Apr. 2023

Executive General Manager
Senior Executive General Manager of Sales Headquarters

Apr. 2024

Senior Executive General Manager (current)

Apr. 2025

Senior Executive General Manager of Business Headquarters (current)

Jun. 2025

Director (current)
Director^*1 OKUYAMA Kikuo

View Full Profile

Career Profile

Oct. 1990

Professor of Department of Chemical Engineering, Cluster 3, Faculty of Engineering of Hiroshima University

Apr. 2001

Professor of Department of Chemical Engineering, Graduate School of Engineering of Hiroshima University

Apr. 2013

Professor Emeritus of Chemical Engineering of Hiroshima University (current)
Special Appointment Professor of Hiroshima University

Jun. 2017

Managing Director of Hosokawa Powder Technology Foundation

Jun. 2021

Outside Director of the Company (current)

Jun. 2022

Auditor of Hosokawa Powder Technology Foundation

Jun. 2022

Vice President of The Information Center of Particle Technology, Japan (current)
Director^*1 HASHIMOTO Katsumi

View Full Profile

Career Profile

Apr. 1981

Joined the Osaka Regional Taxation Bureau

Oct. 1984

Joined Asahi & Co. (currently KPMG AZSA LLC)

Mar. 1987

Registered as a Certified Public Accountant

May 2007

Representative Partner of Asahi & Co. (currently KPMG AZSA LLC)

Jul. 2010

Director of Kyoto Office, KPMG AZSA LLC

Jun. 2019

Left position at KPMG AZSA LLC

Jul. 2019

Established Hashimoto Accounting Office as a Representative (current)

Jun. 2020

Outside Audit & Supervisory Board Member of the Company

Jun. 2022

Outside Director of the Company (current)
Director^*1 NAKANO Hideyo

View Full Profile

Career Profile

Nov. 1991

Vice President of Cititrust and Banking Corporation

Oct. 1993

Senior Portfolio Manager and Head of Private Investment of Cititrust and Banking Corporation

Jan. 2000

Director and Head of Investment Division of FuNNeX Asset Management Inc.

Mar. 2004

Established Trias Corporation; took up position as CEO (current)

Mar. 2020

External Director of OUTSOURCING Inc.

Jun. 2021

External Director of HOCHIKI CORPORATION (current)

Jun. 2022

Outside Director of the Company (current)

Jun. 2023

External Director (Audit & Supervisory Committee Member) of NS TOOL CO., LTD. (current)

Mar. 2026

Outside Director of JUKI CORPORATION (current)
Director^*1 SAKURAI Shigeki

View Full Profile

Career Profile

Apr. 1980

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

Jun. 1994

Seconded to the Metal Mining Agency of Japan (then a special public corporation,
now Japan Organization for Metals and Energy Security [JOGMEC]), serving as Head of the Australia Office

Jul. 2001

Director, Technical Cooperation Division, Trade and Economic Cooperation Bureau, METI

Aug. 2003

Director, Coal Division, Coal and New Energy Department, Agency for Natural Resources and Energy, METI

Sep. 2005

Seconded to Japan Oil, Gas and Metals National Corporation (now JOGMEC),
serving as General Manager of the Planning Departments for Oil and Natural Gas Technology Development
and concurrently as General Manager of the Planning Department for Oil and Natural Gas Development Projects

Jul. 2008

Seconded to the Ministry of Education, Culture, Sports, Science and Technology,
serving as Deputy Director-General of the Minister’s Secretariat (in charge of the Research and Development Bureau)

Aug. 2009

Executive Vice President, Japan Coal Energy Center (now Japan Carbon Frontier Organization)

Jul. 2012

Professor, Center for the Promotion of Interdisciplinary Education and Research, Kyoto University

Apr. 2013

Professor, Graduate School of Advanced Integrated Studies in Human Survivability, Kyoto University

Apr. 2020

Professor Emeritus, Kyoto University (current)
Vice President (Acting President), Kaishi Professional University Professor,
Faculty of Business Creation, Kaishi Professional University

Apr. 2025

Professor Emeritus, Kaishi Professional University (current)

Jun. 2026

Outside Director of the Company (current)
Audit & Supervisory Board Member (full-time) FURUSAWA Yoshiyuki

View Full Profile

Career Profile

Apr. 1993

Joined the Company

Apr. 2010

General Manager of Internal Audit Department

Apr. 2013

General Manager of Financial Division, Financial Headquarters

Apr. 2015

General Manager of Secretarial Department

Apr. 2020

General Manager of Financial Administration Department, Administrative Headquarters

Apr. 2021

General Manager of Life Sciences Business Headquarters

Apr. 2022

General Manager of Internal Audit Department

Apr. 2024

Senior Specialist of Internal Audit Department

Jun. 2024

Full-time Audit & Supervisory Board Member (current)
Audit & Supervisory Board Member (full-time) HASHIMOTO Masayuki

View Full Profile

Career Profile

Apr. 1993

Joined the Company

Oct. 2010

General Manager of Functional Chemicals R&D Department, Functional Chemicals Business Division

Apr. 2013

General Manager of Management Planning Office, Corporate Planning Headquarters

Apr. 2014

Executive General Manager Deputy Executive General Manager of R&D Headquarters

Apr. 2017

Associate Director

Apr. 2019

Executive General Manager of Functional Chemicals Business Division, Business Headquarters

Apr. 2020

Executive General Manager President CEO of Yokkaichi Chemical Company Limited

Apr. 2021

Senior Executive General Manager of R&D Headquarters

Apr. 2024

Senior Executive General Manager

Apr. 2025

Senior Specialist of President’s Office

Jun. 2025

Full-time Audit & Supervisory Board Member (current)
Audit & Supervisory Board Member^*2 TAKAHASHI Toshitada

View Full Profile

Career Profile

Apr. 1982

Joined The Fuji Bank, Limited (currently Mizuho Bank, Ltd.)

May 2004

Manager of Urawa Branch of Mizuho Bank, Ltd.

Nov. 2005

Manager of Maebashi Branch of Mizuho Bank, Ltd.

Apr. 2008

Manager of Shinagawa Branch of Mizuho Bank, Ltd.

Apr. 2010

Chief Auditor, Business Audit Department of Mizuho Bank, Ltd.

Jan. 2011

Joined UC CARD Co., Ltd.

Feb. 2011

Managing Executive Officer of UC CARD Co. Ltd.

Apr. 2020

Director, Managing Executive Officer of UC CARD Co. Ltd.

Jun. 2020

Independent Outside Director Standing Audit and Supervisory Committee Member of ITmedia Inc. (current)

Jun. 2020

Outside Audit & Supervisory Board Member of the Company (current)
Audit & Supervisory Board Member^*2 MIYANAGA Masayoshi

View Full Profile

Career Profile

Apr. 1981

Joined The Nippon Credit Bank, Ltd. (currently Aozora Bank, Ltd.)

Feb. 1990

Temporarily served as an Investment Advisor of The Nippon Credit Bank, Ltd.

Oct. 1991

Dispatched to Nippon Credit Gartmore Ltd. (UK)

Apr. 1995

Joined Schroder Investment Management (Japan) Limited

Apr. 2000

Director of Schroder Investment Management (Japan) Limited

Jan. 2001

Joined Prudential Asset Management Japan Co., Ltd. (currently PGIM Japan Co., Ltd.)
Chief Investment Officer in charge of Stock Investment

Nov. 2003

Joined IRB, Inc. (currently FALCON Research & Consulting Ltd.)
Co-Representative Partner

Nov. 2011

Representative Director of IRB Inc.

Apr. 2017

Director of FALCON Research & Consulting Ltd. (current)

Apr. 2017

Professor of Graduate School of Innovation Studies (currently Graduate School of Management) of Tokyo University of Science

Jun. 2017

Outside Director of Universal Entertainment Corporation

Apr. 2023

Specially Appointed Professor of Chuo Business School

Jun. 2023

Outside Director of S.T. CORPORATION (current)

Jun. 2024

Outside Audit & Supervisory Board Member of the Company (current)

Nov. 2025

Cypress Holdings Co., Ltd. Outside Director (current)

Apr. 2026

Professor of Chuo Business School (current)