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M&A and Subsidiary Changes5711Mitsubishi Materials CorporationIron and Steel, Nonferrous Metals

(Correction) Partial correction to "Execution of the Final Agreement Concerning the Integration of the Business Involving the Purchase of Copper Concentrate and Sale of Electrolytic Copper and Other Products Through a Company Split (Simplified Absorption-Type Company Split)"

For the disclosures dated 28 May 2026 and 6 August 2026, errors in the Companies Act article numbers were corrected, and the requirement for a resolution at the new company's shareholders' meeting and its scheduled date were added.

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What was corrected and how

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

Original disclosure28 May 2026, 6 August 2026

“Execution of the Final Agreement on the Integration of the Business Involving the Purchase of Copper Concentrates and Sale of Electrolytic Copper, etc., through a Company Split (Simplified Absorption-Type Company Split),” announced on 28 May 2026, and “(Change to Disclosed Information) Execution of the Final Agreement on the Integration of the Business Involving the Purchase of Copper Concentrates and Sale of Electrolytic Copper, etc., through a Company Split (Simplified Absorption-Type Company Split),” announced on 6 August 2026

Open the original document
167 daysThe pre-correction wording stayed published for this period (Calculated from the Original Disclosure Date Indicated in the Document)
This correction2026-11-11
Location of correction (where in the original document)

(1) Section 2, “Overview of the Integration (2) Schedule for the Integration,” in the materials announced on 28 May 2026; (2) Section 3, “Schedule,” in the materials announced on 6 August 2026

Before correction

Date of the shareholders' meeting resolution approving the Absorption-Type Company Split Agreement (PPC): January 2027 (scheduled). This Second Absorption-Type Company Split is a short-form company split under Article 784, Paragraph 1 of the Companies Act for the new company, and will be carried out by our company and the new company without obtaining approval by resolution at their shareholders' meetings.

After correction

In addition to the date of the shareholders' meeting resolution approving the Absorption-Type Company Split Agreement (PPC), January 2027 (scheduled), the date of the shareholders' meeting resolution approving the Absorption-Type Company Split Agreement (new company), January 2027 (scheduled), was added. For the First Absorption-Type Company Split only, our company will proceed without obtaining approval by resolution at its shareholders' meeting.

ChangesThe date of the new company's shareholders' meeting resolution was added, and the statement that shareholder approval was not required for the new company as a short-form company split was deleted.
Reason for correction

This is because an error was found in the Companies Act article number applicable to the new company for this Second Absorption-Type Company Split, making it clear that the new company does not meet the requirements for a short-form company split and must obtain approval by resolution at its shareholders' meeting.

What was corrected and how
ItemDetails
Disclosure subject to correction“Execution of the Final Agreement on the Integration of the Business Involving the Purchase of Copper Concentrates and Sale of Electrolytic Copper, etc., through a Company Split (Simplified Absorption-Type Company Split),” announced on 28 May 2026, and “(Change to Disclosed Information) Execution of the Final Agreement on the Integration of the Business Involving the Purchase of Copper Concentrates and Sale of Electrolytic Copper, etc., through a Company Split (Simplified Absorption-Type Company Split),” announced on 6 August 2026
Original disclosure date28 May 2026, 6 August 2026
Location of correction(1) Section 2, “Overview of the Integration (2) Schedule for the Integration,” in the materials announced on 28 May 2026; (2) Section 3, “Schedule,” in the materials announced on 6 August 2026
Details of correctionDate of the shareholders' meeting resolution approving the Absorption-Type Company Split Agreement (PPC): January 2027 (scheduled). This Second Absorption-Type Company Split is a short-form company split under Article 784, Paragraph 1 of the Companies Act for the new company, and will be carried out by our company and the new company without obtaining approval by resolution at their shareholders' meetings. → In addition to the date of the shareholders' meeting resolution approving the Absorption-Type Company Split Agreement (PPC), January 2027 (scheduled), the date of the shareholders' meeting resolution approving the Absorption-Type Company Split Agreement (new company), January 2027 (scheduled), was added. For the First Absorption-Type Company Split only, our company will proceed without obtaining approval by resolution at its shareholders' meeting.
Reason for correctionThis is because an error was found in the Companies Act article number applicable to the new company for this Second Absorption-Type Company Split, making it clear that the new company does not meet the requirements for a short-form company split and must obtain approval by resolution at its shareholders' meeting.
Items this document does not state (1)
Impact 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.

This is because an error was found in the Companies Act article number applicable to the new company for this Second Absorption-Type Company Split, meaning that the new company does not meet the requirements for a short-form company split and must obtain approval by resolution at its shareholders' meeting.

How to read this page

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(Correction) Partial correction to "Execution of the Final Agreement Concerning the Integration of the Business Involving the Purchase of Copper Concentrate and Sale of Electrolytic Copper and Other Products Through a Company Split (Simplified Absorption-Type Company Split)" | Mitsubishi Materials Corporation (5711) timely disclosure | Komori