May 1, 2024
For Immediate Release
To whom it may concern

Mitsui & Co., Ltd.

Notification of Share Repurchase and Cancellation of Treasury Stock(Share repurchase in accordance with paragraph 2 of Article 165 of the Companies Act of Japan andcancellation of treasury stock in accordance with the Article 178 of the said Act)At the meeting of the Board of Directors held on May 1, 2024, Mitsui & Co., Ltd. (“Mitsui”, Head Office:Tokyo, President & CEO: Kenichi Hori) resolved to repurchase its shares in accordance with Article
156 of the Companies Act of Japan, as applied pursuant to paragraph 3 of Article 165 of theCompanies Act of Japan and to cancel treasury stock in accordance with Article 178 of the said Act.
Details of the above are as follows:
1. Purpose of the share repurchase:To enhance shareholder returns and to improve capital efficiency.
2. Details of repurchase:(1) Class of share: Common stock of Mitsui(2) Number of shares to be repurchased: Up to 40 million shares*(3) Total amount: Up to 200 billion yen(4) Repurchase period: From May 2, 2024 to September 20, 2024
(5) Repurchase method: Auction market on the Tokyo Stock Exchange* Please refer to the announcement entitled “Notice Regarding Share Split and Ensuing Partial
Amendment to the Articles of Incorporation” dated May 1, 2024. After the effective date (July 1,2024) of the share split, the number of shares to be repurchased will be up to 80 million shares.
3. Details of cancellation:(1) Class of share: Common stock of Mitsui(2) Total number of treasury stock to be cancelled: All shares repurchased pursuant to “2.” above.
(In total, up to 2.64% of the total number of shares outstanding prior to the cancellation)(3) Scheduled date of cancellation: October 1, 2024
For reference: Status of treasury stock as of March 31, 2024
Number of outstanding shares excluding treasury stock: 1,504,631,668
Number of treasury stock: 8,957,500
Note: The number of treasury stock above does not include 7,282,176 shares held by the employee
stock ownership plan trust.

For further information, please contact:
Mitsui & Co., Ltd.
Investor Relations Division

Tel: +81-3-3285-7657

Corporate Communications Division Tel: +81-80-5912-0321
Notice:This announcement contains forward-looking statements. These forward-looking statements are basedon Mitsui's current assumptions, expectations and beliefs in light of the information currently possessedby it and involve known and unknown risks, uncertainties and other factors. Such risks, uncertainties
and other factors may cause Mitsui's actual results, financial position or cash flows to be materiallydifferent from any future results, financial position or cash flows expressed or implied by these forwardlooking statements. These risks, uncertainties and other factors referred to above include, but are notlimited to, those contained in Mitsui's latest Annual Securities Report and Quarterly Securities Report,and Mitsui undertakes no obligation to publicly update or revise any forward-looking statements. Thisannouncement is published in order to publicly announce specific facts stated above, and does notconstitute a solicitation of investments or any similar act inside or outside of Japan, regarding the shares,
bonds or other securities issued by us.