Aug. 7, 2026

IR

Announcement Regarding Report on the Group (Additional Explanation Regarding the Report "Sumitomo Chemical and Sumitomo Pharmaceutical: The ¥116 billion Swiss Shuffle")

Aug. 5, 2026

Business & Products

Sumitomo Chemical Group Acquires Subsidiary of COPYR Engaged in Natural Pyrethrin-Based Plant Protection Business

Aug. 4, 2026

IR

Announcement Regarding Report on the Group

Aug. 4, 2026

IR

Summary of Consolidated Financial Results for First Quarter Fiscal Year 2026

Aug. 3, 2026

IR

Notice Concerning the Determination of the Amount of the Reduction of Capital Reserves Increased through the Share Exchange and the Transfer to Other Capital Surplus

Jul. 9, 2026

Business & Products

Sumitomo Chemical Submits Registration Applications for New Fungicide Bifemetstrobin

Jul. 2, 2026

Business & Products

Sumitomo Chemical Subsidiary to Establish of a Joint Venture with Samsung Electro-Mechanics for the Glass Core Substrate Business
Jointly Promoting the Next-Generation Core Substrate Business for Advanced Semiconductor Packages

Jul. 2, 2026

Business & Products

Sumitomo Chemical Obtains Registration for New Herbicide Rapidicil^TM in the United States
Unlocking Its Potential to Become a Blockbuster Product Contributing to Regenerative Agriculture

Jul. 1, 2026

IR

(Progress of Disclosure Matters) Notice Concerning the Effectiveness of the Agreements for the Integration of the Domestic Polyolefin Business (PP and LLDPE)

Jun. 30, 2026

Business & Products

Large-Scale Low-Carbon Ammonia Supply Chain Plan Certified under Japan's "Support focusing on the price gap" schem
- Low-carbon ammonia from India to advance decarbonization in Japan's power, chemical and industrial sectors -

Jun. 24, 2026

Organization

Sumitomo Chemical Announces Reorganization

Jun. 17, 2026

Organization

Sumitomo Chemical Announces Reorganization

Jun. 1, 2026

Organization

Sumitomo Chemical Announces Reorganization

May. 26, 2026

Announcements

Notice of the 145th Ordinary General Meeting of Shareholders has been published.

May. 18, 2026

Announcements

Sumitomo Chemical to Exhibit Compound Semiconductor Products at PCIM Europe 2026

May. 15, 2026

IR

Notice Concerning Variances between the Non-consolidated Financial Results in a Consolidated Subsidiary (Taoka Chemical Co., Ltd.) for Fiscal Year 2025 and 2024

May. 15, 2026

IR

"Investors' Meeting for FY2025 Financial Results, Management Priorities and Business Strategies" has been released.

May. 14, 2026

IR

Notice Concerning Finance Income (Foreign Exchange Gain)

May. 14, 2026

IR

Announcement of Reversal of Loss on a Write-down of Investment in Affiliates in Non-consolidated Financial Statements

May. 14, 2026

IR

Summary of Consolidated Financial Results for Fiscal Year 2025