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Governance4220RIKEN TECHNOS CORPORATIONMaterials and Chemicals

(Correction) Independent Director Notification Form

For the Independent Officer Notification Form filed on 27 May 2026, part of the “Explanation of Relevant Circumstances” concerning Kinukawa Yukie (絹川幸恵), one of the 4 outside directors serving as independent officers, has been corrected.

Worth reading
25Immaterial
Scored from 2 of 3 sections
Direction
Neutral
Direction inferred from the company’s description.
Scale
—
Displayed only when the document provides numerical figures.
Wording
Definitive
How definitive the wording is.

The document this correction applies to

Timely disclosure
Independent Officer Notification Form2026-05-27

What was corrected and how

A subsequent correction by the company to the contents of an already published filing.

Original disclosure27 May 2026

Independent Officer Notification Form

Open the original document
26 daysThe pre-correction wording stayed published for this period (Calculated from the Original Disclosure Date Indicated in the Document)
This correction2026-06-22
Location of correction (where in the original document)

“Explanation of Relevant Circumstances” under item 4 of “3. Explanation of Independent Officers’ Attributes and Reasons for Appointment”

Reason for correction

To partially correct, as indicated by the underlined text, the “Explanation of Relevant Circumstances” under item 4 of “3. Explanation of Independent Officers’ Attributes and Reasons for Appointment” in the Independent Officer Notification Form filed on 27 May 2026.

What was corrected and how
ItemDetails
Disclosure subject to correctionIndependent Officer Notification Form
Original disclosure date27 May 2026
Location of correction“Explanation of Relevant Circumstances” under item 4 of “3. Explanation of Independent Officers’ Attributes and Reasons for Appointment”
Reason for correctionTo partially correct, as indicated by the underlined text, the “Explanation of Relevant Circumstances” under item 4 of “3. Explanation of Independent Officers’ Attributes and Reasons for Appointment” in the Independent Officer Notification Form filed on 27 May 2026.
Items this document does not state (2)
Details of correctionImpact on Business Performance

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.

To partially correct the “Explanation of Relevant Circumstances” under item 4 of “3. Explanation of Independent Officers’ Attributes and Reasons for Appointment” in the Independent Officer Notification Form filed on 27 May 2026.

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.
(Correction) Independent Director Notification Form | RIKEN TECHNOS CORPORATION (4220) timely disclosure | Komori