This document has been translated from the Japanese original for reference purposes only. In the event of any discrepancy
between the English translation and the Japanese original, the original version shall prevail.

February 13, 2024

Company name： Kumagai Gumi Co., Ltd.
Representative ：Yasunori Sakurano, President(Code: 1861, Prime Market in the Tokyo Stock Exchange)

Notice of Change of Representative Directors

Kumagai Gumi (the “Company”) hereby announces that at a meeting of the Board of Directors held today, February 13,
2024, it decided to make the following changes to its Representative Directors as follows.
１．Reason for the change
In April 2024, the current midterm management plan that the Company has been working on under the sloganof untiring commitment toward sustained growth will expire and a new midterm management plan will beinitiated. Marking a major milestone, the Company decided to revamp the management system in order toaccelerate ongoing initiatives and seek further stabilization and the diversification of its earnings base.
２．Details of the change（Scheduled to take office as of April 1, 2024）
President and Representative Director
Executive Officer and PresidentShin Ueda

（Current Director and Senior Managing
Executive Officer）

Representative Director
Executive Officer andDeputy President

Koji Okaichi（Current Director and Senior Managing
Executive Officer）（Scheduled to retire as of March 31, 2024）
President and Representative Director
Executive Officer and President

Yasunori Sakurano（Scheduled to be the Chairperson of theCompany as of April 1, 2024）

Representative Director
Executive Officer andDeputy President

Yoshihiko Kato

（Scheduled to be the Director of the Company
as of April 1, 2024）

Representative Director
Executive Officer andDeputy President

Yoshiaki Ogawa（Scheduled to be the Director of the Company
as of April 1, 2024）

Both Yoshihiko Kato and Yoshiaki Ogawa are scheduled to resign as directors in late June 2024.

1

３．Name and career background of the new Representative Director
NameShin Ueda
Date of birth
December 23, 1961（62 years old）
Academic background
March 1984 Graduated from Department of Architecture, Faculty of Scienceand Engineering, Waseda University
Career background
April 1984
Joined the Company
April 2014
Executive Officer of the Company
April 2014
Deputy General Branch Manager of the Metropolitan Branch ofthe Company
April 2014
General Manager of the Architectural Management Division ofthe Metropolitan Branch of the Company
April 2017Managing Executive Officer of the Company
April 2017
General Branch Manager of the Metropolitan Branch of theCompany
April 2020
Senior Managing Executive Officer of the Company (current)
April 2021
General Manager of the Architectural Management
Division of the Company (current)
June 2021
Directorof the Companyof the Company(current) (current)
Number of Shares Owned 3,900 shares（as of February 13, 2024）
Name
Date of birth
Academic backgroundKoji Okaichi
April 3, 1960（63 years old）
March 1984 Graduated from Department of Civil Engineering, Faculty ofEngineering, Kyoto University
Career background
April 1984
Joined the Company
April 2016
Executive Officer of the Company
April 2016
Joint General Manager of the Civil Engineering
Management Division of the Company
April 2016
General Manager of Civil Engineering of the Civil
Engineering Management Division of the Company
April 2017
General Branch Manager of the Kansai Branch of the Company
April 2018
Managing Executive Officer of the Company
April 2019
General Manager of Kansai Dream Project Office of Kansai
Branch of the Company
April 2020
Senior Managing Executive Officer of the Company (current)
April 2021
General Manager of the Civil Engineering Management Divisionof the Company (current)
April 2021
General Manager of the Railway Project Promotion Division ofthe Civil Engineering Management Division of the Company(current)
June 2021
Director of the Company (current)
Number of Shares Owned 1,500 shares（as of February 13, 2024）2