Directors & Executive Officers
As of April 1, 2025
Directors

Representative Director, President & CEO
Hirofumi Amano
Background
- April 1990Joined Tamano Consultants Co., Ltd. (Currently Nippon Koei Urban Space Co., Ltd.)
- September 2003Joined KCS Co., Ltd.
- August 2005Director of KCS Co., Ltd.
- October 2005President of KCS Co., Ltd.
- March 2017Director of the Company
- April 2017Senior Executive Officer of the Company
Head of IT Innovation Planning Office (Currently DX Promotion Headquarters) - March 2019Director of OYO Seismic Instrumentation Corporation
- March 2020Director of KCS Co., Ltd.
- April 2022Senior Managing Executive Officer of the Company
- March 2023Representative Director & President of the Company (Current position)
- April 2023President & CEO of the Company (Current position)

Representative Director, Deputy President
Yuichi Hirashima
Background
- April 1983Joined Fuji Bank, Limited (Currently Mizuho Bank, Ltd.)
- April 2009Head of Americas Credit Division of Mizuho Corporate Bank, Ltd. (Currently Mizuho Bank, Ltd.)
- April 2011Head of Internal Audit Division of Mizuho Corporate Bank, Ltd. (Currently Mizuho Bank, Ltd.)
- August 2013Joined the Company
- August 2014Executive Officer of the Company
- April 2015Senior Executive Officer of the Company
Director of OYO RMS Corporation - March 2016Director of the Company
- April 2016Head of Administration Headquarters
- April 2017Senior Managing Executive Officer of the Company
- June 2018Outside Director of Engineering and Risk Services Corporation (Current position)
- March 2019Director of OYO Resources Management Corporation
- March 2020Representative Director & Deputy President of the Company (Current position)
- April 2020Deputy President, Executive Officer of the Company (Current position)

Director, Deputy President
Munehiro Igarashi
Background
- April 1985Joined the Ministry of Construction (Currently Ministry of Land, Infrastructure, Transport and Tourism)
- April 2008Director, Disaster Risk Management Office, River Bureau
- July 2009Director, Seacoast Office, River Bureau
- September 2012Senior Director, River Department, Chubu Regional Development Bureau
- October 2014Director, River Environment Division, Water and Disaster Management Bureau
- July 2015Assistant Vice-Minister, Minister's Secretariat (in charge of Road Bureau)
- June 2016Director-General, Water Resources Department, Water and Disaster Management Bureau
- October 2017Joined the Company, Executive Manager of the Company
- April 2018Senior Managing Executive Officer of the Company
- April 2020Deputy President, Executive Officer of the Company (Current position)
- March 2023Director, Deputy President of the Company (Current position)
- June 2024Outside Director of Engineering and Risk Services Corporation (Current position)

Outside Director
Shoji Osaki
Background
- April 1979Joined SAPPORO Breweries Limited
- March 2005Director of Wine and Liquor Division of SAPPORO Breweries Limited
Director of SAPPORO Wines Limited - March 2006Director of Wine and Liquor Division of SAPPORO Breweries Limited
Director of SAPPORO Wines Limited
President and Representative Director of YEBISU Winemart Co., Ltd. - October 2007Director of Naka-Shikoku District Headquarters of SAPPORO Breweries Limited
- March 2010Executive Officer and Director of Tokai Hokuriku District Headquarters of SAPPORO Breweries Limited
- March 2012Statutory Corporate Auditor of SAPPORO Beverage Co., Ltd.
Corporate Auditor of SAPPORO Breweries Limited
Corporate Auditor of SAPPORO Group Management Co., Ltd.
Corporate Auditor of SAPPORO International Inc. - March 2013Statutory Corporate Auditor of POKKA SAPPORO Food & Beverage Ltd.
- March 2015Statutory Corporate Auditor of SAPPORO Holding Limited
- March 2019Outside Director of the Company (Current position)
- June 2020Auditor (External) of Haruna Beverage Inc. (Current position)
- June 2023Outside Audit & Supervisory Board Member of Yokogawa Bridge Holdings Corp.
- June 2024Outside Director (Audit and Supervisory Committee Member) of Yokogawa Bridge Holdings Corp. (Current position)

Outside Director
Yoko Ikeda
Background
- April 1980Assistant Judge of Tokyo District Court
- May 1989Registered as Attorney (Yokohama Bar Association)
Joined Yamada Law Office (Currently Meitaishouhei Law Office) (Current position) - April 1998Legal Advisor to Kanagawa Prefecture
- April 2003Civil Conciliation Commissioner (Yokohama District Court and Yokohama Summary Court) (Current position)
- March 2004Committee Member of Yokohama City PFI Projects Screening Committee
- April 2006Committee Member of Yokohama City Bidding and Tendering Oversight Committee
- April 2009Visiting Professor of Graduate School of Law of Yokohama National University
- April 2012Part-time Lecturer of Local Autonomy College, Ministry of Internal Affairs and Communications
- April 2013Board Member of Information Disclosure and Personal Information Protection Review Board, Ministry of Internal Affairs and Communications
- July 2018Commission Member of Public Records and Archives Management Commission, Cabinet Office
- October 2019Commission Member of Public Records and Archives Management Commission, Tokyo Metropolitan Government (Current position)
- March 2022Outside Director of the Company (Current position)
- June 2023Executive Director of TETSUDOKOSAIKAI FOUNDATION (Current position)

Outside Director
Emi Sekiya
Background
- April 1985Director of OA Mate Corporation
- January 1997Director of ICES Corporation
- January 1999Executive Director of ICES Corporation
- January 2001Managing Director of ICES Corporation
- September 2003Representative Director and President of I'll net Corporation
- April 2005Director of PCI Holdings, INC.
- October 2016Representative Director and Chairperson of I'll net Corporation
- October 2017Chairperson of the Board of Directors of Green Power Development Corporation of Japan (Current position)
- June 2022Outside Director of TEKKEN CORPORATION (Current position)
- March 2025Outside Director of the Company (Current position)
Audit & Supervisory Committee Member

Director, Audit & Supervisory Committee member
Shinichi Kagawa
Background
- April 1980Joined the Company
- April 1998Deputy Head of Finance Department, Administration Headquarters
- September 2002Transferred to NS Environment Corporation, Head of Administration Headquarters
- December 2004Corporate Auditor of NS Environment Corporation
- February 2007Head of Administration Department, Management Headquarters and Head of Administration Center
- April 2011Head of Accounting Department and Administration Department, Administration Headquarters
- March 2015Director and Vice President of KCS Co., Ltd.
- April 2016Executive Officer of the Company
Head of Compliance Office - March 2018Statutory Corporate Auditor of the Company (Current position)
- March 2025Director, Audit & Supervisory Committee member (Current position)

Outside Director, Audit & Supervisory Committee member
Jun Naito
Background
- April 1982Registered as Attorney at the Dai-Ichi Tokyo Bar Association
Joined Nagashima & Ohno - January 1991Partner of Nagashima & Ohno
- January 2000Partner of Nagashima Ohno & Tsunematsu
- June 2007Outside Corporate Auditor of INNOTECH Corporation
- January 2013Attorney at Nagashima Ohno & Tsunematsu
- March 2015Outside Corporate Auditor of the Company
- June 2016Outside Corporate Auditor of YAMATANE Corporation
- January 2020Senior Counsel of Nagashima Ohno & Tsunematsu
- June 2023Outside Director (Audit and Supervisory Committee Member ) of YAMATANE Corporation (Current position)
- January 2025Representative Lawyer of J&N Law Office (Current position)
- March 2025Outside Director, Audit & Supervisory Committee member (Current position)

Outside Director, Audit & Supervisory Committee member
Takao Orihara
Background
- April 1980Joined Nomura Real Estate Development Co., Ltd.
- June 2005Director of Nomura Real Estate Holdings, Inc.
Director of Nomura Real Estate Development Co., Ltd. - April 2008Director and Senior Executive Officer of Nomura Real Estate Development Co., Ltd.
- April 2009Director and Managing Executive Officer of Nomura Real Estate Development Co., Ltd.
- May 2012Director and Executive Officer of Nomura Real Estate Holdings, Inc.
- April 2014Audit & Supervisory Board Member of Nomura Real Estate Development Co., Ltd.
Advisor of Nomura Real Estate Holdings, Inc. - June 2014Audit & Supervisory Board Member of Nomura Real Estate Holdings, Inc.
- June 2015Director (Audit & Supervisory Committee Member) of Nomura Real Estate Holdings, Inc.
- March 2023Outside Corporate Auditor of the Company
- June 2023Outside Corporate Auditor of NIPPON GAS CO., LTD. (Current position)
- March 2025Outside Director, Audit & Supervisory Committee member (Current position)
Executive Officers
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Senior Managing Executive Officer
Shinichi Iwashita
-
Senior Executive Officer
Toshihiko Tanaka
-
Senior Executive Officer
Tadashi Yoshioka
-
Senior Executive Officer
Akitomo Nakanishi
-
Executive Officer
Osamu Ide
-
Executive Officer
Naoto Shigemoto
-
Executive Officer
Tatsuro Matsushita
-
Executive Officer
Katsuya Baba
-
Executive Officer
Ryo Miyazaki
-
Executive Officer
Ryutaro Jinnai
-
Executive Officer
Toshihiro Inayoshi
-
Executive Officer
Kyo Matsui
-
Executive Officer
Takashi Kodama
-
Executive Officer
Mitsuru Horikoshi
-
Executive Officer
Kazunori Yamaguchi
-
Executive Officer
Naoki Nakamura
-
Executive Officer
Tsukasa Endo