Notice of the 84th Ordinary General Shareholders Meeting

To Our Shareholders,

Securities code: 5310

March 10, 2026

Naotaka Kondo Representative Director Chairman & President, CEO Toyo Tanso Co., Ltd.

1-13-1 Umeda, Kita-ku, Osaka

You are cordially informed of the 84th Ordinary General Shareholders Meeting of Toyo Tanso Co., Ltd. (the “Company”) to be held as described on the next page.

When convening this General Shareholders Meeting, the Company takes measures for providing information that constitutes the content of Reference Documents for the General Shareholders Meeting, etc. (matters for which measures for providing information in electronic format are to be taken) in electronic format, and posts this information as “Notice of the 84th Ordinary General Shareholders Meeting.” Please access either of the following websites using the internet addresses shown below to review the information.

The Company’s website: https://www.toyotanso.co.jp/IR/meeting.html (in Japanese)

Website for posted informational materials for the general meeting of shareholders: https://d.sokai.jp/5310/teiji/ (in Japanese)

TSE website (Listed Company Search): https://www2.jpx.co.jp/tseHpFront/JJK010010Action.do?Show=Show (in Japanese)

* Enter the issue name “Toyo Tanso” or the securities code “5310” and click “Search.” Then, click “Basic Information” and select “Documents for public inspection/PR information.” Under “Filed information available for public inspection,” click “Click here for access” under “[Notice of General Shareholders Meeting /Informational Materials for a General Shareholders Meeting].”

Details

1. Date and time: Friday, March 27, 2026, at 10:00 a.m. (JST) (Reception starts at 9:30 a.m.)
2. Venue: Umeda South Conference Room (11F Osaka Umeda Twin Towers South) 1-13-1 Umeda, Kita-ku, Osaka
3. Purpose of the meeting Matters to be reported:

   1. Report on the Business Report, the Consolidated Financial Statements and audit reports by the Accounting Auditor and the Audit & Supervisory Board for the Consolidated Financial Statements for the 84th term (from January 1, 2025 to December 31, 2025)

   2. Report on the Non-consolidated Financial Statements for the 84th term (from January 1, 2025 to December 31, 2025)

• If you attend the meeting in person, please present the enclosed Voting Card at the reception desk upon your arrival at the meeting.

• If the necessity to make revisions to the matters for which measures for providing information in electronic format are to be taken arises, a notice of the revisions and the details of the matters before and after the revisions will be posted on the aforementioned websites.

• Among the matters subject to measures for electronic provision, in accordance with the provisions of laws and regulations and the Articles of Incorporation of the Company, the following matters are not provided in the paper-based documents delivered to shareholders who have made a request for delivery of such documents.

These matters are listed in the “Notice of the 84th Ordinary General Shareholders Meeting [Matters not Provided for in the Documents Delivered to Shareholders who have Requested the Delivery of Paper-based Documents as Provided for by the Provisions of Laws and Regulations and the Articles of Incorporation].”

(i) “Notes to the Consolidated Financial Statements” and (ii) “Notes to the Non-consolidated Financial Statements”

Note that matters not included in the documents delivered to shareholders who have requested the delivery of the aforementioned documents are included in the scope of audits by the Audit & Supervisory Board Members and Accounting Auditor.

We hereby propose the year-end dividends below.

The Company’s basic policy is to make strategic investments in order to strengthen competitiveness and enhance corporate value over the long term, and to distribute profits to shareholders in a continuous and stable fashion (payout ratio 40% or higher) with due comprehensive consideration of business results for each fiscal year and funding needs, etc., for the future expansion of business operations and reinforcement of the operating foundations. The Company intends to use internal reserves for capital expenditures for production-related facilities, development of new products and investment in research and development.

Based on the above policy and financial results for the current term, the Company plans to pay a year-end dividend of ¥145 per share for the current term.

1. Type of dividend property Cash

2. Allotment of dividend property to shareholders and total amount thereof

   ¥145 per share of common stock of the Company Total amount of dividends: ¥3,040,971,320

3. Effective date of dividends from surplus March 30, 2026

The terms of office of all of the five (5) Directors will expire at the conclusion of this meeting. Therefore, we propose the election of five (5) Directors. Of the five (5) candidates, three (3) are candidates for Outside Director.

The candidates for Director are as follows:

Note: The attendance of Kazuhiro Imai at the Board of Directors meetings is presented in his capacity of Audit & Supervisory Board Member.