Jan. 26, 2026

Announcements

Apology and Request Regarding Email Inquiry Reception Issues

Jan. 22, 2026

R&D

Sumitomo Chemical Receives Clarivate Top 100 Global Innovators 2026 Award
Selected as One of the World's Top 100 Innovative Companies and Institutions for Five Consecutive Years

Jan. 21, 2026

Announcements

Sumitomo Chemical to Participate in the 39^th DVN Munich Lighting Workshop, A Venue for Sharing Cutting-Edge Innovations in the Field of Automotive Lighting

Jan. 16, 2026

IR

(Progress of Disclosed Matters) Notice Regarding Determination of Share Exchange Ratio in Simplified Share Exchange between Sumitomo Chemical Co., Ltd. and Tanaka Chemical Corporation

Jan. 8, 2026

Announcements

Sumitomo Chemical to Attend SPIE Photonics West 2026 to Exhibit its Compound Semiconductor Products and Present an Invited Talk

Jan. 5, 2026

Other

Summary of the New Year's Message from President Nobuaki Mito