Komori
Occurring Fact4990Showa Chemical Industry Co.,Ltd.Materials and Chemicals

Notice Regarding a Change in Other Affiliated Company

Sigma Co., Ltd. became an Other Affiliated Company of Showa Chemical Industry Co.,Ltd. on 1 May 2026. The combined voting rights ownership ratio of Sigma Co., Ltd. and its joint holders is 31.5%.

Worth reading
29Immaterial
0–100. This measures how worthwhile something is to read, not how good or bad the company is.
Direction
Neutral
Direction inferred from the company’s description.
Scale
31.5
% (voting rights ownership interest after the change)
Wording
Definitive
How definitive the wording is.

Change in Other Affiliated Company

Subject Entity

Showa Chemical Industry Co.,Ltd., Sigma Co., Ltd.

Occurrence1 May 2026 (the date on which Sigma Co., Ltd. became an Other Affiliated Company)
70 days later
Awareness or receipt of notice10 July 2026 (the date on which Sigma Co., Ltd. submitted the amended large shareholding report and the Company confirmed its contents)
This disclosure07/14/2026
Cause

The number of jointly held shares, including Ishibashi Kenzō (石橋健藏), who is a Representative Director of Sigma Co., Ltd. and also serves concurrently as a Representative Director of the Company, reached 3,357,215 shares, and the voting rights ownership ratio reached 31.5%. After reviewing Sigma Co., Ltd.'s influence over the Company and other factors, the Company determined that Sigma Co., Ltd. qualifies as an Other Affiliated Company.

Change in voting rights ownership ratio

Total18.20%→31.50%(+13.30pt)

The voting rights ownership percentage is the proportion of the voting rights exercisable at a shareholders' meeting held by the shareholder.

Voting rights ownership percentage before the change

19,381 voting rights (18.2%, as of 31 March 2026; 19,381 voting rights held directly, with none subject to aggregation)

Voting rights ownership percentage after the change

Total: 33,572 voting rights (31.5% of the total 106,461 voting rights as of 31 March 2026). This comprises 19,381 voting rights held directly (18.2%) and 14,191 voting rights subject to aggregation (13.3%).

Outlook

There are no matters requiring particular disclosure regarding the outlook following this change.

Event that occurred
ItemDetails
Event nameChange in Other Affiliated Company
Date of occurrence1 May 2026 (the date on which Sigma Co., Ltd. became an Other Affiliated Company)
Date recognized / date notice received10 July 2026 (the date on which Sigma Co., Ltd. submitted the amended large shareholding report and the Company confirmed its contents)
Subject EntityShowa Chemical Industry Co.,Ltd., Sigma Co., Ltd.
CauseThe number of jointly held shares, including Ishibashi Kenzō (石橋健藏), who is a Representative Director of Sigma Co., Ltd. and also serves concurrently as a Representative Director of the Company, reached 3,357,215 shares, and the voting rights ownership ratio reached 31.5%. After reviewing Sigma Co., Ltd.'s influence over the Company and other factors, the Company determined that Sigma Co., Ltd. qualifies as an Other Affiliated Company.
Voting rights ownership percentage before the change19,381 voting rights (18.2%, as of 31 March 2026; 19,381 voting rights held directly, with none subject to aggregation)
Voting rights ownership percentage after the changeTotal: 33,572 voting rights (31.5% of the total 106,461 voting rights as of 31 March 2026). This comprises 19,381 voting rights held directly (18.2%) and 14,191 voting rights subject to aggregation (13.3%).
OutlookThere are no matters requiring particular disclosure regarding the outlook following this change.
Items this document does not state (17)
Target Locations / ProductsAmount of Impact on Business PerformanceAccounting period in which recognizedImpact on Earnings ForecastType of litigation or proceedingCourt or authorityPlaintiffDefendantDate of filing / date of actionClaim amount / surcharge amountAmount of receivables at risk of non-collection or delayed collectionSuspended operationsScheduled resumption dateInvestigation structureMeasures to prevent recurrenceDirectors' and officers' liabilityPlanned follow-up disclosure

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

Based on the amended large shareholding report submitted by Sigma Co., Ltd., the Company confirmed the number of jointly held shares and the voting rights ownership ratio, and, after reviewing Sigma Co., Ltd.'s influence over the Company, determined that Sigma Co., Ltd. qualifies as an Other Affiliated Company.

How to read this page

This is not the documentKomori reads the disclosure the company filed and writes this summary. Figures are as stated by the company and are not audited.
Weight is not a verdictIt measures how much this changes what the company had already told the market. It is not a view on the shares.
Corrections happenIf the company reissues this disclosure, the page is rebuilt from the corrected version and the revision number moves up.
Notice Regarding a Change in Other Affiliated Company | Showa Chemical Industry Co.,Ltd. (4990) timely disclosure | Komori