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

May. 13, 2026

IR

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

May. 13, 2026

IR

Reduction in the Amount of Capital Reserves That Will Increase upon the Share Exchange and Transfer of the Reduced Amount to Other Capital Surplus

May. 13, 2026

IR

Notice Regarding Execution of Share Exchange Agreement (Simplified Share Exchange) to Make Koei Chemical Company, Limited a Wholly Owned Subsidiary of Sumitomo Chemical Co., Ltd.

Apr. 8, 2026

IR

Notice Regarding the Issuance of New Shares by a Subsidiary

Apr. 1, 2026

IR

(Progress of Disclosure Matters) Notice of Execution of Absorption-Type Company Split Agreement for Integration of Polyolefin (PP and LLDPE) Business in Japan (Simple Absorption-Type Company Split)

Mar. 6, 2026

IR

Notice Regarding a Subsidiary Obtaining Manufacturing and Marketing Authorization for iPS Cell-Derived Product "AMCHEPRY^®" for the Treatment of Parkinson's Disease

Mar. 2, 2026

IR

Notice Regarding the Filing of a Shelf Registration for the Issuance of New Shares by a Subsidiary

Feb. 3, 2026

IR

Announcement of Extraordinary Loss in Non-consolidated Financial Statements

Feb. 3, 2026

IR

Notice Concerning Share of Loss of Investments Accounted for Using the Equity Method

Feb. 3, 2026

IR

Sumitomo Chemical Announces Revisions to Its Financial Forecast and Projected Dividend for the Full Year Ending March 31, 2026

Feb. 3, 2026

IR

Summary of Consolidated Financial Results for Third Quarter Fiscal Year 2025

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