Summary of Financial Results (First Quarter of FY2026)

Member of the Financial Accounting Standards Foundation

May 11, 2026

Company name: Toyo Tanso Co., Ltd. Listing: Tokyo Stock Exchange Securities code: 5310

URL: https://www.toyotanso.co.jp

Representative: Naotaka Kondo, Representative Director, Chairman & President, CEO Inquiries: Masaki Kuno, General Manager, Finance and Accounting Department, General

Administration Division

Telephone: +81-50-3097-4950

Scheduled date to commence dividend payments: -Preparation of supplementary material on financial results: Yes Holding of financial results briefing: None

1. Consolidated financial results for the three months ended March 31, 2026 (From January 1, 2026 to March 31, 2026) (1) Consolidated operating results (cumulative total) (Millions of yen, rounded down)

   (Percentages indicate changes from the same period in the previous fiscal year.)

   Net sales Operating profit Ordinary profit Profit attributable to

   owners of parent

   %	%	%	%
   10,576 (7.8)	634 (70.3)	820 (56.5)	609 (52.3)

   Three months ended

   March 31, 2026

   Three months ended March 31, 2025

   11,475 (8.7) 2,140 (15.9) 1,885 (38.0) 1,276 (46.4)

   Notes: 1. Comprehensive income Three months ended March 31, 2026 1,352 million yen [ -%]

   Three months ended March 31, 2025 33 million yen [-99.0%]

2. The rate of change in comprehensive income for the three months ended March 31, 2026, exceeded 1,000%, and is therefore shown as "-."

Three months ended March 31, 2026

Three months ended March 31, 2025

Basic earnings per share Diluted earnings per share

yen yen

29.05 -

60.88 -

(Millions of yen, rounded down)

Reference: Equity As of March 31, 2026 95,802 million yen

As of December 31, 2025 97,491 million yen

1. Cash dividends

   Year ended December 31, 2025

   Annual dividends per share (yen)

   First quarter-end Second quarter-end Third quarter-end Fiscal year-end Total

   - 0.00 - 145.00 145.00

   Year ending December 31, 2026 (Actual)	-
   Year ending December 31, 2026 (Forecast)		0.00	-	145.00	145.00

   (Note) Revisions to the forecast of cash dividends most recently announced: None

2. Consolidated results forecast for the fiscal year ending December 31, 2026

(Millions of yen, rounded down) (Percentages indicate year-on-year changes.)

Net sales Operating profit Ordinary profit

Profit attributable to owners of parent

Profit attributable to owners of parent

per share

(Note) Revisions of consolidated forecasts most recently announced: None

• Notes

  1. Significant changes in the scope of consolidation during the period: None Newly included: (Company name)

     Excluded: (Company name)

  2. Adoption of accounting treatment specific to the preparation of quarterly consolidated financial statements: Yes
  3. Changes in accounting policies and accounting estimates and restatements

     1. Changes in accounting policies due to revisions to accounting standards and other regulations: None

     2. Changes in accounting policies due to other reasons: None

     3. Changes in accounting estimates: None

     4. Restatement: None

  4. Number of issued shares (common shares)

     1. Total number of issued shares at the end of the period (including treasury shares) As of March 31, 2026 20,992,588 shares

        As of December 31, 2025 20,992,588 shares

     2. Number of treasury shares at the end of period

        As of March 31, 2026 20,372 shares

        As of December 31, 2025 20,372 shares

     3. Average number of shares outstanding during the period (cumulative from the beginning of the fiscal year)

        Three months ended March 31, 2026 20,972,216 shares

        Three months ended March 31, 2025 20,972,311 shares

• Review of the Japanese-language originals of the attached consolidated quarterly financial statements by certified public accountants or an audit firm: None
• Proper use of earnings forecasts, and other special matters

(Cautions regarding forward-looking statements)

Forward-looking statements such as the earnings forecasts in this material are based on currently available information and certain assumptions deemed rational, and are not intended as a guarantee that these forecasts will be achieved. Accordingly, actual results may differ significantly from these forecasts due to various factors.