Notice of the 165th General Meeting of Shareholders PDF （1,583KB） PDF （1,583KB）

Date Tuesday, June 24, 2025, 10:00 A.M. (JST)

Place The Main Hall, 52nd floor

Taisei Corporation Head Office Shinjuku Center Building

25-1, Nishi-Shinjuku 1-chome Shinjuku-ku, Tokyo, Japan

Please exercise your voting rights through the Internet or by post by 5:30 P.M. (JST), Monday, June 23, 2025.

Securities Code: 1801

Table of Contents

Notice of the 165th

General Meeting of Shareholders 2

Measures for Electronic Provision of Information pertaining to the Matters to Be Specified in Shareholders Meeting Reference Documents 3

Instructions of Exercising Your Voting Right 4

Reference Materials for the General Meeting of Shareholders 5

Information Guide to Live Streaming of the GMS and Questions in Advance

… Back Cover Page

Information regarding the venue of the GMS

We have prepared a designated area for shareholders who use wheelchairs on the day of the GMS. In addition, we have installed live captioning system using automatic speech recognition (ASR) at the venue to support shareholders in attending the GMS more smoothly. Please let the staff at the venue know if you need any assistance during the GMS such as finding your seat or the restroom, or communicating in writing at the reception.

Greeting from President and Chief Executive Officer

To Our Shareholders,

I would like to express particular thanks for your continued support.

In delivering the Notice of the 165th General Meeting of Shareholders to our shareholders, I would like to make a few remarks.

The executives and employees of Our Group have been working together as one on [TAISEI VISION 2030] Achievement Plan and our Medium-Term Business Plan (2024-2026), to become "a pioneering corporate group contributing to the development of a resilient society where people can live affluent and cultural lives", as what we should aim for in [TAISEI VISION 2030].

To realize what we should aim for, we will build a business foundation that can flexibly respond to any changes in the external environment and achieve stable growth. And, by delivering outcomes exceeding the expectations and imagination of our clients, we will strive to further enhance our corporate value.

With regard to the cash dividend at the end of the fiscal year ended March 31, 2025, we propose to pay 145 yen per share, comprehensively taking account of dividend payout ratio based on financial policy and business environment, etc. in the future.

I sincerely appreciate your continued and invaluable cooperation and support.

President and Chief Executive Officer, Representative Director

(Securities Code: 1801)

May 30, 2025

Electronic Provision Measures Commencement Date: May 26, 2025

To Our Shareholders

NOTICE OF THE 165th GENERAL MEETING OF SHAREHOLDERS

Taisei Corporation (the"Company") would like to take this occasion to express particular thanks for the support of our shareholders.

Notice is hereby given that the 165th General Meeting of Shareholders of the Company (the"GMS") will be held as indicated below.

Please kindly review the Reference Materials for the GMS provided hereunder, and we would like to request you to exercise your voting rights beforehand through the Internet or by post no later than Monday, June 23, 2025, 5:30 P.M. (JST) as described on page 4. In addition, there will be live streaming of the GMS so that the proceedings of the meeting can be viewed at home, etc. Please refer to the back cover page of this notice, regarding the details of the live streaming.

1. Date: Tuesday, June 24, 2025, 10:00 A.M. (JST)

2. Place: The Main Hall, 52nd floor

   Taisei Corporation Head Office Shinjuku Center Building

   25-1, Nishi-Shinjuku 1-chome

   Shinjuku-ku, Tokyo, Japan

3. Agenda:

   1. Matters to be reported: 1. Business Report, Consolidated Financial Statements, and

      Audit Reports of Accounting Auditor and Audit & Supervisory Board for Consolidated Financial Statements, for the fiscal year ended March 31, 2025 (the 165th Business Year commenced April 1, 2024 and ended March 31, 2025)

      2. Non-Consolidated Financial Statements, for the fiscal year ended March 31, 2025 (the 165th Business Year commenced April 1, 2024 and ended March 31, 2025)

   2. Matters to be resolved:

Item No.1: Appropriation of Earned Surplus

Item No.2: Election of Twelve (12) Members of the Board

Item No.3: Election of One (1) Audit & Supervisory Board Member

Yours sincerely,

Yoshiro AIKAWA

President and Chief Executive Officer Representative Director

TAISEI CORPORATION

Measures for Electronic Provision of Information pertaining to the Matters to Be Specified in Reference Materials for the General Meeting of Shareholders

(For shareholders who use Japanese language only)

Upon convocation of the GMS, the information pertaining to the matters to be specified in Reference Materials for the GMS of which electronic provision is made, is posted on the following websites on the Internet. We sincerely request the shareholders to visit the websites and confirm it.

The Compan's website:

https://www.taisei.co.jp/ir/soukai.html (Japanese language only)

Note: For shareholders who use English, please refer to the Company's English website: https://www.taisei.co.jp/english/ir/meeting/

The website of Toko Stock Exchange ("TSE"):

https://www2.jpx.co.jp/tseHpFront/JJK010010Action.do?Show=Show (Japanese language only)

The way to search the information of the listed companies of TSE:

To refer to "notice of the general meeting of shareholders/reference materials for the general meeting of shareholders", please insert the name "Taisei Corporation" or the securities code "1801" into the search box of the website, and select the link "basic information" first, and then select the link "documents for public inspection/information for public relations".

The website of convocation through the Internet:

https://s.srdb.jp/1801/ (Japanese language only)

Instructions of exercising your voting right

(Prior to the GMS or on the date of the GMS)

Deadline for Voting:

By Monday, June 23, 2025, 5:30 P.M. (JST)

Please access the designated website for voting of the Company (https://soukai. mizuho-tb.co.jp/) and follow the instructions on the screen to enter your preference on the matters to be resolved.

Two-dimensional code is also printed in the Voting Form. ("ID"and"Password" are not necessary.)

For more information, please refer to the enclosed paper titled"Request for exercising your voting right."

Deadline for Voting:

Voting Form Needs to Be Received by Monday, June 23, 2025, 5:30 P.M. (JST)

Please indicate your preference on the matters to be resolved on the enclosed Voting Form and return the Form by post.

In case no preference is indicated on a matter to be resolved, we treat that you cast an affirmative vote to that matter.

Date of the Meeting:

Tuesday, June 24, 2025, 10:00 A.M. (JST)

Shareholders attending the Meeting are requested to submit the Voting Form to the reception desk at the Place for the GMS.

If exercising your voting rights by proxy, you can appoint one of other shareholders of the Company who is entitled to vote and ask that person to attend the GMS as your proxy. In this case, please be advised that a letter of proxy shall be submitted along with a Voting Form.

Note 1: In the event of duplicate exercise of voting rights through both the Internet and in writing, the exercise via Internet shall prevail.

Furthermore, if voting rights are exercised multiple times through the Internet, only the last exercise shall be considered valid.

Note 2: Regarding the documents which the Company may send upon the shareholders'request for such documents in writing, in accordance with laws and regulations and the provision of the Articles of Incorporation of the Company, the following items are omitted from the documents:

・Systems and Policies of the Company;

・Consolidated Statement of Changes in Net Assets and Notes to Consolidated Financial Statements; and

・Non-Consolidated Statement of Changes in Net Assets and Notes to the Non-Consolidated Financial Statements.

Provided, the Business Report, Consolidated Financial Statements and Non-Consolidated Financial Statements, which were audited by Audit & Supervisory Board Members and Accounting Auditors include the above items omitted from the documents in writing to be sent upon shareholders' request.

Note 3: In the event that any amendment is made in the Reference Materials for the General Meeting of Shareholders, Business Report, Consolidated Financial Statements and Non-Consolidated Financial Statements, the Company will disclose the amended matter on the Company's website.

Note 4: The notice of the resolution adopted at this General Meeting of Shareholders will be reported on the Company's website instead of sending a written document.

The Company's Website https://www.taisei.co.jp/english/