Oct. 28, 2025

IR

Notice Regarding Execution of a Share Exchange Agreement (Simplified Share Exchange) to Make Tanaka Chemical Corporation a Wholly-Owned Subsidiary of Sumitomo Chemical Co., Ltd.

Oct. 22, 2025

IR

(Progress of Disclosure Matters) Notice Regarding the Impact on Results of Sale and Other Transactions of Shares in Petro Rabigh, an Equity-Method Affiliate

Oct. 20, 2025

Business & Products

Sumitomo Chemical to Reorganize its U.S. Group Companies in the Agro & Life Solutions Sector and Establish a Global Hub for its Biorational Business

Sep. 26, 2025

IR

"Investors' Meeting for the Current Priority Management Issues and Business Strategy" has been released.

Sep. 16, 2025

R&D

Sumitomo Chemical Wins New Office Promotion Award at the 38th Nikkei New Office Awards for New Research Facility at Its Chiba Site

Sep. 10, 2025

Business & Products

Mitsui Chemicals, Idemitsu Kosan, and Sumitomo Chemical Enter Into MOU on Integration of Sumitomo Chemical's PP and LLDPE Businesses into Prime Polymer, Aiming to Strengthen the Competitiveness of the Domestic Polyolefin Business

Sep. 1, 2025

Announcements

Investors' Handbook 2025 has been published

Sep. 1, 2025

IR

(Progress of Disclosure Matters) Notice Regarding Sale of a Portion of the Shares Sumitomo Chemical Holds in Petro Rabigh and Other Related Matters

Aug. 27, 2025

Announcements

Sumitomo Chemical to Attend SEMICON India 2025

Aug. 20, 2025

Business & Products

Sumitomo Chemical Achieves Scale-Up of Its Proprietary Process for Producing Propylene Directly from Ethanol

Aug. 19, 2025

Business & Products

Sumitomo Chemical and JFE Engineering to Start Demonstration Test for CO₂ Recovery Using Membrane Separation Technology
The First Attempt in Japan to Recover CO₂ from a Waste to Energy Plant by Membrane Separation

Aug. 8, 2025

Sustainability

Sumitomo Chemical Newly Designates Eight Products and Technologies as Sumika Sustainable Solutions

Aug. 5, 2025

IR

Announcement of a Subsidiary's Submission of the Application of Manufacturing and Marketing Authorization for an iPS Cell-Derived Product for Parkinson's Disease in Japan

Aug. 5, 2025

Business & Products

Sumitomo Chemical Announces an Expansion of the Production Capacity of its Regenerative Medicine and Cell Therapy CDMO Subsidiary

Aug. 1, 2025

IR

Sumitomo Chemical Reports Unrealized Losses on Securities as of June 30, 2025

Aug. 1, 2025

IR

Notice Concerning Finance Expenses (Foreign Exchange Loss)

Aug. 1, 2025

IR

Summary of Consolidated Financial Results for First Quarter Fiscal Year 2025

Jul. 31, 2025

IR

(Progress of Disclosure Matters) Notice Regarding Completion of Procedures for a Company Split (Simplified Absorption-Type Company Split) by a Subsidiary

Jul. 22, 2025

Sustainability

Sumitomo Chemical Recognized as a 2024 CDP Supplier Engagement Leader for the Sixth Consecutive Year

Jul. 18, 2025

IR

Notice Regarding Payment Completed of New Shares as Restricted Stock Compensation