Komori
Occurring Fact5711Mitsubishi Materials CorporationIron & Steel, Nonferrous Metals

Notice Regarding Recognition of an Impairment Loss on Fixed Assets (Extraordinary Loss) and Change in Subsidiary Status (Making a Specified Subsidiary)

The processing of copper concentrate and operation of related smelting facilities at the Onahama Smelter are expected to cease by the end of March 2027, and an impairment loss of ¥21.0 billion is expected to be recognized in the fourth quarter of the fiscal year ending March 2026. In addition, up to ¥23.0 billion will be raised through a capital increase by 小名浜製錬, which is expected to have negative net worth, making it a specified subsidiary.

Worth reading
54Recurring
0–100. This measures how worthwhile something is to read, not how good or bad the company is.
Direction
Deterioration
Direction inferred from the company’s description.
Scale
210
¥100 million (impairment loss)
Wording
Avoiding a definitive answer
How definitive the wording is.

Notice Regarding Recognition of an Impairment Loss on Fixed Assets (Extraordinary Loss) and Change in Subsidiary Status (Making a Specified Subsidiary)

Subject Entity

小名浜製錬株式会社 (the Company's consolidated subsidiary; 100% owned by the Company)

Target Locations / Products

Copper concentrate processing and related smelting facilities at the Onahama Smelter. E-Scrap, shredder dust, the electrolytic plant, PGM plant and casting plant are also covered.

Occurrence25 March 2026 (date of the Board of Directors' resolution; processing of copper concentrate and operation of related smelting facilities are expected to cease by the end of March 2027)
This disclosure03/25/2026
Cause

Competition with overseas smelters has intensified, the terms (TC/RC) for purchasing copper concentrate from mining companies have deteriorated substantially, and the outlook has become uncertain.

Amount of Impact on Business Performance

The impairment loss is expected to total ¥21.0 billion (extraordinary loss). The capital increase will be up to ¥23.0 billion, through the conversion of loans receivable into common shares.

Accounting period in which recognized

The consolidated financial results for the fourth quarter of the fiscal year ending March 2026

Impact on Earnings Forecast

The impairment loss has already been reflected in the full-year consolidated earnings forecast announced on 12 February 2026. The impact of the capital increase on consolidated full-year results for the fiscal year ending March 2026 is expected to be immaterial.

Change in voting rights ownership ratio

Number of voting rights100.00%→100.00%(0.00pt)

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

Number of voting rights: Not disclosed; ownership ratio: 100% held by the Company (before the capital increase)

Voting rights ownership percentage after the change

Number of voting rights: Not disclosed; ownership ratio: 100% held by the Company (expected after the capital increase)

Company response

Suspended operations

Processing of copper concentrate and operation of related smelting facilities at the Onahama Smelter are expected to cease by the end of March 2027. Receipt of E-Scrap and shredder dust is expected to be suspended or transferred to other production sites. Operations at the electrolytic plant, PGM plant and casting plant, among others, will continue.

Outlook

Processing of copper concentrate and operation of related smelting facilities are expected to cease by the end of March 2027. Receipt of E-Scrap and shredder dust is expected to be suspended or transferred to other sites. A capital increase of up to ¥23.0 billion is expected to be implemented by 30 June 2026. Operations at the electrolytic plant, PGM plant and casting plant, among others, will continue.

Event that occurred
ItemDetails
Event nameNotice Regarding Recognition of an Impairment Loss on Fixed Assets (Extraordinary Loss) and Change in Subsidiary Status (Making a Specified Subsidiary)
Date of occurrence25 March 2026 (date of the Board of Directors' resolution; processing of copper concentrate and operation of related smelting facilities are expected to cease by the end of March 2027)
Subject Entity小名浜製錬株式会社 (the Company's consolidated subsidiary; 100% owned by the Company)
Target Locations / ProductsCopper concentrate processing and related smelting facilities at the Onahama Smelter. E-Scrap, shredder dust, the electrolytic plant, PGM plant and casting plant are also covered.
CauseCompetition with overseas smelters has intensified, the terms (TC/RC) for purchasing copper concentrate from mining companies have deteriorated substantially, and the outlook has become uncertain.
Amount of Impact on Business PerformanceThe impairment loss is expected to total ¥21.0 billion (extraordinary loss). The capital increase will be up to ¥23.0 billion, through the conversion of loans receivable into common shares.
Accounting period in which recognizedThe consolidated financial results for the fourth quarter of the fiscal year ending March 2026
Impact on Earnings ForecastThe impairment loss has already been reflected in the full-year consolidated earnings forecast announced on 12 February 2026. The impact of the capital increase on consolidated full-year results for the fiscal year ending March 2026 is expected to be immaterial.
Suspended operationsProcessing of copper concentrate and operation of related smelting facilities at the Onahama Smelter are expected to cease by the end of March 2027. Receipt of E-Scrap and shredder dust is expected to be suspended or transferred to other production sites. Operations at the electrolytic plant, PGM plant and casting plant, among others, will continue.
Voting rights ownership percentage before the changeNumber of voting rights: Not disclosed; ownership ratio: 100% held by the Company (before the capital increase)
Voting rights ownership percentage after the changeNumber of voting rights: Not disclosed; ownership ratio: 100% held by the Company (expected after the capital increase)
OutlookProcessing of copper concentrate and operation of related smelting facilities are expected to cease by the end of March 2027. Receipt of E-Scrap and shredder dust is expected to be suspended or transferred to other sites. A capital increase of up to ¥23.0 billion is expected to be implemented by 30 June 2026. Operations at the electrolytic plant, PGM plant and casting plant, among others, will continue.
Items this document does not state (13)
Date recognized / date notice receivedType of litigation or proceedingCourt or authorityPlaintiffDefendantDate of filing / date of actionClaim amount / surcharge amountAmount of receivables at risk of non-collection or delayed collectionScheduled 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.

Intensifying competition with overseas smelters, a substantial deterioration in the TC/RC terms for purchasing copper concentrate, and uncertainty regarding the outlook have made it difficult to secure the profitability of the copper concentrate processing business. The capital increase is intended to fundamentally improve 小名浜製錬's profitability and strengthen its financial position.

How to read this page

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Corrections happenIf the company reissues this disclosure, the page is rebuilt from the corrected version and the revision number moves up.
Notice Regarding Recognition of an Impairment Loss on Fixed Assets (Extraordinary Loss) and Change in Subsidiary Status (Making a Specified Subsidiary) | Mitsubishi Materials Corporation (5711) timely disclosure | Komori