Source disclosure: February 05, 2026

Mitsui Chemicals,Inc. [4183.T]

TOKYO, Feb 05 (Pulse News Wire) – Mitsui Chemicals,inc. (4183.T) announced today that its board of directors has approved plans for share buybacks and cancellations aimed at improving capital efficiency and enhancing shareholder returns.

Under the resolution, the company intends to repurchase up to 18,400,000 shares, representing 4.9% percent of the total outstanding shares excluding treasury stock. The buyback will take place from February 06, 2026 to July 31, 2026 through open-market purchases based on a discretionary agreement. The total amount allocated for the buyback is capped at ¥30.00 billion.

Additionally, Mitsui Chemicals plans to cancel a portion of its own shares held in treasury after completing the buyback process. The cancellation is expected to reduce the number of treasury shares to approximately 5% percent of the total outstanding shares. The exact number of shares to be canceled will be disclosed after the completion of the buyback.

As of January 31, 2026, the company had 25,164,057 treasury shares out of a total of 376,523,573 outstanding shares excluding treasury stock.

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