Notice of Dividends from Surplus and Dividend Forecast for the Next Fiscal Year (Dividend Increase)

To Whom It May Concern:

Company name: Mitsui Matsushima Holdings Co., Ltd

May 13, 2026

Representative: Taishi Yoshioka, Representative Director and President (Stock Code:1518, Prime Market of the Tokyo Stock Exchange and Fukuoka Stock Exchange)

Contact: Mikiko Abe, Senior Executive Officer in Charge of Business Planning Dept.

(Tel: +81-92-771-2171)

Mitsui Matsushima Holdings Co., Ltd. (the "Company") hereby announces that it resolved, at its Board of Directors meeting held on May 13, 2026, to pay dividends from surplus with the record date of March 31, 2026, as detailed below.

The Company also announces its dividend forecast for the fiscal year ending March 31, 2027, which is disclosed also in the "Consolidated Financial Results for the Year Ended March 31, 2026 [Japanese GAAP]," released today.

1. Dividend for the fiscal year ended March 2026

   1. Details

      	Amount determined	Most recent dividend forecast (announced on November 7, 2025)	Results for the previous fiscal year (FYE March 2025)
      Record date	March 31, 2026	Same as that on the left	March 31, 2025
      Dividend per share [Pre-stock split equivalent]	41 yen [205 yen]	41 yen [205 yen]	16 yen [80 yen]
      Total amount of dividends	1,610 million yen	-	913 million yen
      Effective date	June 1, 2026	-	June 2, 2025
      Source of dividends	Retained earnings	-	Retained earnings

   2. Reason

      The Company positions the return of profits to shareholders as one of its priority management policies. In principle, the Company strives to return profits commensurate with its financial results on an ongoing basis while securing the internal reserves necessary to ensure stable future growth and to respond to changes in the business environment.

      In comprehensive consideration of the policy mentioned above and the trends of its financial results, the Company will pay a dividend per share of 41 yen as the year-end dividend for the fiscal year ended March 31, 2026 (annual dividend of 64 yen when combined with the interim dividend of 23 yen per share).

2. Dividend forecast for the fiscal year ending March 2027

As for the Company's dividend forecast for the fiscal year ending March 2027, in comprehensive consideration of the dividend policy and the trends of its financial results, the Company plans to pay a dividend per share of 74 yen (an increase of 10 yen from the result for the fiscal year ended March 2026).

(Reference) Breakdown of annual dividends

• Effective on October 1, 2025, the Company conducted a 5-for-1 stock split of its common stock. The actual amount of dividend per share before the interim dividend for the fiscal year ended March 2026 will be calculated based on the number of shares before the stock split, and that after the year-end dividend for the fiscal year ended March 2026 will be calculated based on the number of shares after the stock split.

• The above forecast is based on information available as of the date of this publication. The actual dividend may vary due to various future factors.

• Today, the Company formulated a medium-term management plan with the fiscal year ending March 2030 as its final year. For details, please refer to the "Notice Regarding the Formulation of the Medium-term Management Plan," released today.

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