Notice Regarding the Status of Treasury Stock Acquisition, Completion of Acquisition, and Number of Cancelled Shares (Based on the Articles of Incorporation under the Provisions of Article 165, Paragraph 2 of the Companies Act and Cancellation of Treasury Stock Based on the Provisions of Article 178 of the Companies Act)

Status of Treasury Stock Acquisition

Sumitomo Corporation, based on the board resolution held on May 1, 2025, executed treasury stock acquisition pursuant to Article 165, Paragraph 3 of the Companies Act, and completed the acquisition as of February 19, 2026. The acquired shares were common stock of the company, totaling 17,714,775 shares, with a total acquisition cost of 79,999,446,100 yen. The acquisition period was from May 2, 2025 to February 19, 2026.

Regarding Cancellation of Treasury Shares

Regarding the cancellation of treasury shares resolved by the same board meeting, the type of shares to be cancelled are the company’s common shares, with 16,714,775 shares to be cancelled (approximately 1.49% relative to the number of shares issued before cancellation). After cancellation, the total number of issued shares will be 1,194,711,892 shares, with the scheduled cancellation date of April 10, 2026. It is the company’s policy to cancel all shares acquired except for the number of shares expected to be allocated for stock-based compensation.