Hideo Arai

• April 1977Joined Sumitomo Construction Co., Ltd.
• July 2001 General Manager, Technical Consulting Department, Civil Engineering Administration Department, Civil Engineering Division, Sumitomo Construction Co., Ltd.
• April 2003 General Manager, Civil Engineering Technical Consulting Department, Civil Engineering Administration Department, Civil Engineering Business Division of the Company
• April 2010 Executive Officer, Branch Manager, Tokyo Civil Engineering Branch
• April 2011 Managing Executive Officer
• April 2012 Division Director, Civil Engineering Division
• June 2012 Director
• April 2013 Senior Managing Executive Officer
• April 2015 Representative Director, President & CEO
• April 2021 Representative Director, Chairman & CEO (to present)

Shigetoshi Kondo

• April 1988 Joined The Sumitomo Bank, Limited
• April 2015
  Director, Nagoya Corporate Solution Center,
  Department Manager, Strategic Corporate Business Department, Sumitomo Mitsui Banking Corporation
• April 2017 General Project Manager of Corporate Planning Department and Affiliated Business Department of the Company
• April 2018 Managing Executive Officer General Manager, Corporate Planning Department
• April 2019 Senior Managing Executive Officer
• June 2019 Director
• April 2020 Division Director, Corporate Planning Division
• April 2021 Representative Director,
  President & COO (to present)

Shoji Kimijima

Officer supervising Administration Division, Business Innovation & Incubation Division, and Global Division
Division Director, Audit Department and Secretariat

• April 1979 Joined Sumitomo Construction Co., Ltd.
• June 1999 General Manager, General Affairs Department, Administration Division, Sumitomo Construction Co., Ltd.
• April 2003 General Manager, General Affairs Department, Global Business Department of the Company
• April 2011 Executive Officer
• April 2012 Division Director, Secretariat (to present)
• April 2013 Managing Executive Officer, Division Director, Administration Division
• June 2013 Director
• April 2016 Senior Managing Executive Officer
• April 2019 Representative Director,
  Executive Vice President
  (to present), Officer supervising Business Innovation & Incubation Division and Global Division (to present)
  Division Director, Audit Department (to present)
• October 2019 Division Director, Administration Division
• April 2021 Officer supervising Administration Division (to present)

Yoshitaka Mimori

Division Director, Building Construction Division

• April 1979 Joined Sumitomo Construction Co., Ltd.
• January 2000 General Manager, Building Construction Department, Building Construction Administration Department, Tokyo Branch, Sumitomo Construction Co., Ltd.
• April 2003 General Manager, Building Construction Department, Building Construction Administration Department, Tokyo Building Construction Branch of the Company
• April 2011 Executive Officer
• April 2013 Managing Executive Officer
• April 2015 Senior Managing Executive Officer
• June 2015 Director
• April 2016 Division Director, Building Construction Division (to present)
• April 2018 Representative Director,
  Executive Vice President (to present)

Takeshi Sagara

Division Director, Safety, Environment & Production Management Division Officer in charge of DX Promotion

• April 1981 Joined Mitsui Construction Co., Ltd.
• April 2012 Branch Manager, Kyushu Branch of the Company
• April 2013 Executive Officer
• April 2015 Managing Executive Officer, Overall in charge of Construction, Building Construction Division
• April 2016 Division Director, Production Management Division
• April 2019 Senior Managing Executive Officer (to present),
  Division Director, Safety, Environment & Production Management Division
• April 2021Division Director, Safety, Environment & Production Management Division (to present),
  Officer in charge of DX Promotion (to present)
• June 2021 Director of the Company (to present)

Toshio Shibata

Division Director, Civil Engineering Division

• April 1985 Joined Mitsui Construction Co., Ltd.
• April 2012 General Manager, Civil Engineering Technical Consulting Department, Civil Engineering Division of the Company
• April 2018 Executive Officer
• April 2019 Branch Manager, Tokyo Civil Engineering Branch
• April 2020 Managing Executive Officer (to present) Division Director, Civil Engineering Division (to present)
• June 2020 Director (to present)

Sakio Sasamoto

• April 1974 Joined Nippon Kokan Ltd.
• April 2005 Senior Executive Officer, Manager, General Affairs and Legal Affairs, JFE Holdings, Inc.
  
• August 2005 Department Manager, General Affairs Department, JFE Holdings, Inc.
• April 2008 Senior Managing Executive Officer, JFE Holdings, Inc.
• June 2009 Representative Director, President, JFE Life Corporation
• June 2012 Auditor, JFE Holdings, Inc.
• June 2016 Outside Director of the Company (to present)

Jun Sugie

• April 1979 Joined Ministry of Finance
• July 2007 Deputy Commissioner, Large Enterprise Examination and Criminal Investigation Department, National Tax Agency
• July 2008 Regional Commissioner, Kantoshinetsu Regional Taxation Bureau
• July 2009 Deputy Commissioner (International Affairs), Commissioner's Secretariat, National Tax Agency
• July 2011 Regional Commissioner, Tokyo Reginal Taxation Bureau
• December 2012 Councilor, Japan Securities Depository Center, Inc.
• June 2014 Director, Senior Executive Officer, Japan Securities Depository Center, Inc.
  Director, Senior Executive Officer, JASDEC DVP Clearing Corporation
• July 2015 Senior Executive Officer, Japan Securities Depository Center, Inc.
• May 2017 External Director, IDOM Inc. (to present)
• April 2018Vice Chairman and Executive Director, The Investment Trusts Association, Japan (to present)
  
• June 2019 Director of the Company (to present)

Tamao Hosokawa

• May 1993 Journalist (to present)
• October 2003 Member of Shinagawa Ward Board of Education
• April 2004 Part-time Lecturer (contemporary politics), Seisa University (to present)
• January 2016 Director, Chiba Institute of Technology
• June 2017 Director, Japan Institute for National Fundamentals (to present)
• June 2019 Director of the Company (to present)
• April 2021 Member of Gender Equality Bureau Cabinet Office (to present) Member of Council for Information Disclosure and Personal Information Protection, Tokyo Metropolitan Government (to present)
  
  

Tsukasa Kawada

• April 1977 Joined Ministry of Foreign Affairs
• June 2010 Director-General, Consular Affairs Bureau, Ministry of Foreign Affairs
• September 2011 Ambassador Extraordinary and Plenipotentiary to Algeria
• October 2014 Ambassador Extraordinary and Plenipotentiary in charge of International Cooperation for Countering Terrorism and International Organized Crime
• June 2016 Ambassador Extraordinary and Plenipotentiary in charge of Okinawan Affairs
• June 2018 Ambassador Extraordinary and Plenipotentiary to Poland
• February 2021 Advisor to Mitsui Sumitomo Insurance Company, Limited (to present)
• June 2021 Director of the Company (to present)

Michio Harada

• April 1981 Joined Sumitomo Construction Co., Ltd.
• June 2011 Department Manager, Audit Department of the Company
• June 2018 Full-time Audit & Supervisory Board Member (to present)

Yoshiyuki Kato

• April 1982 Joined The Sumitomo Trust & Banking Co., Ltd.
• November 2011 Chief Investigator, Internal Audit Department,
  Sumitomo Mitsui Trust Holdings, Inc.
• April 2012 Chief, Internal Audit Department, Sumitomo Mitsui Trust Bank, Limited
  
• June 2012 Full-time Audit & Supervisory Board Member of the Company (to present)

Hisato Tokunaga

• April 1980 Joined Mitsui Construction Co., Ltd.
• April 2004 Manager, Business Support Center, Administration Division of the Company
• April 2006 Department Manager, Treasury Department, Corporate Planning & Administration Division
• April 2015 Department Manager, Affiliated Business Department
• June 2016 Representative Director, President, Cosmo Planning Corporation
• June 2019 Full-time Audit & Supervisory Board Member of the Company (to present)

Aizou Murakami

• April 1974 Registered as a lawyer
• June 2000 Outside Auditor, RISO KAGAKU CORPORATION
• April 2001 Executive Governor, Japan Federation of Bar Associations
• June 2002 External Auditor, Airport Facilities Co., Ltd.
• July 2005 Established Kioi Law Office, Representative (to present)
• June 2012 Outside Director, Shibaura Institute of Technology
• June 2012 Audit & Supervisory Board Member of the Company (to present)

Yukihiro Hoshi

• April 1975 Joined Sumitomo Metal Mining Co., Ltd.
• July 1997 Tochigi Plant Manager, Housing & Building Materials Division, Sumitomo Metal Mining Co., Ltd.
• June 2007 Department Manager, Risk Management Department, Sumitomo Metal Mining Co., Ltd.
• April 2010 Director, Department Manager, Technology Department and Environmental Security Department, Japan Mining Industry Association
  
• April 2014 Department Manager in charge of Environment, Safety & Environment Control Department, Sumitomo Metal Mining Co., Ltd.
  
• June 2014 Department Manager in charge of Environment, Safety & Environment Control Department, Department Manager in charge of Corporate Planning Department, Sumitomo Metal Mining Co., Ltd.
  
• June 2018 Audit & Supervisory Board Member of the Company (to present)