Officer list

Board of Directors

as of April 1, 2025

Kazuhiko Yamaki

President & Representative Director
Biography
- April 1983 Joined the Company
- April 2003 Manager, Food Ingredients Sales Department No.4
- July 2006 Executive Officer
- April 2008 Manager, Natural Extract and Seasonings Business Promotion Department
- June 2010 Director
  General Manager, Food Service Unit
- June 2014 Managing Director
- June 2016 President & Representative Director (current position)
Takahisa Nakano

Senior Managing Director & Representative Director
Biography
- April 1985 Joined the Company
- April 2004 Manager, Health Care Department
- July 2006 Executive Officer
- June 2012 Director
- June 2014 Manager, Health Care Business Unit
- June 2017 Manager, Business Strategy Promotion Department
- June 2022 Managing Director
- June 2023 Senior Managing Director & Representative Director (current position)
Responsibilities

In charge of Administration (Compliance, General Affairs and Human Resources) and Business Strategy
Nobuo Dotsu

Managing Director
Biography
- April 1985 Joined the Company
- June 2009 Manager, Food Ingredients Development Department
- July 2014 Executive Officer
- June 2019 Managing Executive Officer
- June 2022 Director
- June 2023 Managing Director (current position)
Responsibilities

In charge of Administration (Legal Affairs), Procurement, Quality Assurance and Health Care Business
Tsutomu Mochizuki

Managing Director
Biography
- April 1985 Joined the Company
- January 2004 President of Riken Vitamin Europe GmbH
- July 2010 Manager, International Business Unit of the Company
- June 2014 General Manager, International Business Unit
- July 2014 Executive Officer
- April 2018 General Manager, Production Unit No. 2
- June 2019 Managing Executive Officer
- July 2020 Manager, Food Ingredients Global Marketing Department
- October 2021 Executive Manager, International Sales Department
- June 2022 Director
- June 2023 Managing Director (current position)
Responsibilities

In charge of International Business and Chemical Business
Takahiro Tomitori

Director
Biography
- April 1988 Joined The Dai-ichi Kangyo Bank, Limited
- April 2009 Manager, Shinkawa Branch of Mizuho Bank, Ltd.
- April 2012 Manager, Osaka Chuo Branch
- April 2014 General Manager, Branch Operation Department No.8
- April 2017 Executive Officer
  Manager, Fukuoka Branch and General Manager, Fukuoka Department No. 1 and 2
- April 2019 Senior Managing Executive Officer of Mizuho Research Institute Ltd.
- April 2021 Joined the Company
- June 2021 Director (current position)
Responsibilities

In charge of Administration (Sustainability, Accounting and Information Technology) and Corporate Strategy
Shinichi Hirano

Outside Director
Biography
- April 1979 Joined Asahi Breweries Company (now Asahi Group Holdings, Ltd.)
- July 2011 Managing Director and General Manager of Sales Division of Asahi Breweries, Ltd.
- March 2013 Senior Managing Director and General Manager of Sales Division
- March 2015 Director and Vice President
- March 2016 President & Representative Director
- January 2020 Outside Director of GiG Works Inc. (current position)
- June 2020 Outside Director and Audit and Supervisory Committee Member of Sinko Industries Ltd.
- June 2021 Outside Director of the Company (current position)
- June 2022 Outside Director of Sinko Industries Ltd. (current position)

Eiichi Kato

Director, Full-time Audit and Supervisory Committee Member
Biography
- April 1983 Joined the Company
- November 2010 Manager, Quality Assurance Department
- June 2014 General Manager, Quality Assurance Unit
- July 2014 Executive Officer
- June 2021 Director, Full-time Audit and Supervisory Committee Member (current position)
Satoshi Fujinaga

Outside Director, Full-time Audit and Supervisory Committee Member
Biography
- April 1985 Joined Takeda Pharmaceutical Company Limited
- October 2002 Product Manager, Product Management Department, Pharmaceutical International Division
- January 2009 Executive Vice President of Takeda Pharmaceuticals Asia Pte. Ltd.
- April 2012 Executive Vice President of Takeda Pharmaceuticals (Asia Pacific) Pte. Ltd.
- April 2015 Manager, Corporate Planning Department of Takeda Pharmaceutical Company Limited
- June 2015 External Corporate Auditor of the Company
- June 2017 Outside Director, Full-time Audit and Supervisory Committee Member (current position)
Towa Sueyoshi

Outside Director, Audit and Supervisory Committee Member
Biography
- October 2001 Registered as an attorney-at-law
  Joined Sakura Sogo Law Office
- October 2014 Civil Conciliator, Chiba Summary Court
- June 2015 External Corporate Auditor of the Company
- April 2016 Joined Mukai Law Office (current position)
- June 2017 Outside Director, Audit and Supervisory Committee Member of the Company (current position)
Wataru Sueyoshi

Outside Director, Audit and Supervisory Committee Member
Biography
- April 1983 Registered as an attorney-at-law
  Joined Mori Sogo (currently Mori Hamada & Matsumoto)
- April 2007 Founded STW & Partners (currently SHIOMIZAKA); Partner
- July 2014 Member of Subdivision on Copyrights of the Council for Cultural Affairs, Ministry of Education, Culture, Sports, Science and Technology
- June 2016 Outside Director of Hitachi Capital Corp. (currently Mitsubishi HC Capital Inc.)
- January 2020 Founded Sueyoshi & Sato; Partner (current position)
- January 2020 Founded Sueyoshi & Sato; Partner (current position)
- June 2023 Outside Director of Mitsubishi Estate Co., Ltd. (current position)
Ayumi Ujihara

Outside Director, Audit and Supervisory Committee Member
Biography
- April 1984 Joined BROTHER INDUSTRIES, LTD.
- March 1994 Joined Itoh Audit Firm
- April 2000 Joined Tokai Local Finance Bureau as a financial securities inspector
- July 2003 Joined ChuoAoyama Audit Corporation
- August 2006 Joined PricewaterhouseCoopers Aarata (currently PricewaterhouseCoopers Aarata LLC)
- July 2015 Partner
- July 2022 Representative of Ayumi Ujihara CPA office (current position)
- March 2023 Audit & Supervisory Board Member (Outside), Yamaha Motor Co., Ltd. (current position)
- May 2023 Partner of Kagayaki Audit Corporation (current position)
- June 2023 Outside Director, Audit and Supervisory Committee Member of the Company (current position)
  Outside Director, Audit & Supervisory Committee Member of Makita Corporation (current position)