Notice Regarding the Status of Treasury Stock Acquisition (Acquisition of Treasury Stock Based on the Provisions of Article 459, Paragraph 1 of the Companies Act)

Overview of Treasury Stock Acquisition

Mitsui-Soko Holdings Co., Ltd. executed treasury stock acquisitions based on the resolution of its Board of Directors on February 6, 2026, in accordance with Article 459, Paragraph 1 of the Companies Act and Article 38 of the Articles of Incorporation. During the period from March 2 to March 31, 2026, the company acquired 624,500 shares on the Tokyo Stock Exchange Market at a total purchase price of 2,382,678,400 yen. The cumulative total stands at 3,285,600 shares with a purchase price amounting to 11,957,607,400 yen. The maximum number of shares authorized for acquisition is 5,500,000 shares, the maximum purchase price is 34,000,000,000 yen, and the acquisition period runs from February 9 to July 31, 2026.

Impact on Shareholders and Future Outlook

This treasury stock acquisition plans to acquire up to 7.35% of the total issued shares excluding treasury stock, aimed at improving capital efficiency as part of shareholder returns. The acquisitions have been mainly conducted through market purchases, and additional acquisitions are expected within the planned period. There is no information in this document about cancellation of acquired shares; future announcements should be monitored closely.