Mitsui Chemicals, Inc. (TSE:4183) announces a share repurchase program. Under the program, the company will repurchase 18,400,000 shares, representing 4.89% of its share capital, for ¥30,000 million. The company will repurchase its shares in order to improve capital efficiency and will cancel treasury shares to enhance the effectiveness of shareholder returns.

The repurchase program will continue until July 31, 2026. As of January 31, 2026, the company had 376,523,573 shares outstanding (excluding treasury shares) and 25,164,057 shares in treasury.