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Changes in Officers1799DAIICHI KENSETSU CORPORATIONConstruction and Materials

Notice Regarding Changes in Representative Directors and Other Officers

Effective 25 June 2026, the Representative Director and President will change from Uchida Mikio (内田 海基夫) to Shimoyama Takashi (下山 貴史). Uchida Mikio (内田 海基夫) will change from Representative Director and President to Director and Senior Corporate Adviser. In addition, 2 directors will retire, and new Executive Officers will be appointed and responsibilities will be changed.

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Who is moving to which position

Resolved 29 May 2026

Incoming appointee

2 items
Scheduled Appointment DateEffective 25 June 2026 (scheduled to be submitted to the 84th Annual General Meeting of Shareholders scheduled for 25 June 2026)
Shimoyama Takashi (下山 貴史)
Previous positionEast Japan Railway Company Executive Officer, Mito Branch Manager and Head of the Railway Operations Department, Mito Branch
New positionRepresentative Director and President; Executive Officer, President
Shimura Taisho (志村 泰昇)
Previous positionHead of Track Department, Track Division
New positionExecutive Officer, Deputy Head of Track Division and Head of Track Department
Date of birth9 May 1965 (Shimoyama Takashi (下山 貴史))
Year joined the company1992 (Shimoyama Takashi (下山 貴史))
Number of shares held0 shares (as of 31 March 2026)
Because the names and counts do not correspond, they are shown as reported without linking the counts to individual names.

Departing officer

2 items
Date of departureEffective 25 June 2026
Horiyama Isao (堀山 功)Stepping down
Former PositionDirector, Senior Executive Officer and Head of Track Division
Ochiai Mikio (落合 美喜夫)Stepping down
Former PositionDirector, Senior Executive Officer and Head of General Affairs Division
Shareholders’ meeting approvalExpected to be required. The matter is scheduled to be submitted to the 84th Annual General Meeting of Shareholders scheduled for 25 June 2026.
Reason for change

To further enhance corporate value under the new management structure.

Details of organizational changes

Hayakawa Haruhiko (早川 晴彦), Head of Corporate Management Division, will concurrently serve as Head of General Affairs Division. A new Executive Officer position will be established and filled by an officer concurrently serving as Deputy Head of Track Division and Head of Track Department.

Who is moving to which position
ItemDetails
Resolution date29 May 2026
Scheduled Appointment DateEffective 25 June 2026 (scheduled to be submitted to the 84th Annual General Meeting of Shareholders scheduled for 25 June 2026)
Date of departureEffective 25 June 2026
Name of appointeeShimoyama Takashi (下山 貴史), Shimura Taisho (志村 泰昇)
Appointee's new positionRepresentative Director and President; Executive Officer, President, Executive Officer, Deputy Head of Track Division and Head of Track Department
Appointee's previous positionEast Japan Railway Company Executive Officer, Mito Branch Manager and Head of the Railway Operations Department, Mito Branch, Head of Track Department, Track Division
Appointee's date of birth9 May 1965 (Shimoyama Takashi (下山 貴史))
Year the appointee joined the Company1992 (Shimoyama Takashi (下山 貴史))
Number of shares held by the appointee0 shares (as of 31 March 2026)
Name of departing officerHoriyama Isao (堀山 功), Ochiai Mikio (落合 美喜夫)
Former position of departing officerDirector, Senior Executive Officer and Head of Track Division, Director, Senior Executive Officer and Head of General Affairs Division
Reason for changeTo further enhance corporate value under the new management structure.
Details of organizational changesHayakawa Haruhiko (早川 晴彦), Head of Corporate Management Division, will concurrently serve as Head of General Affairs Division. A new Executive Officer position will be established and filled by an officer concurrently serving as Deputy Head of Track Division and Head of Track Department.
Subject to Approval by the General Meeting of ShareholdersExpected to be required. The matter is scheduled to be submitted to the 84th Annual General Meeting of Shareholders scheduled for 25 June 2026.
Items this document does not state (7)
New position of departing officerReason for departureWhether the incumbent will remain in officeReasons for appointmentNumber of directors after the changeFiling as an independent officerChange in Corporate Governance Structure

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

To further enhance corporate value under the new management structure.

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Notice Regarding Changes in Representative Directors and Other Officers | DAIICHI KENSETSU CORPORATION (1799) timely disclosure | Komori