Mitsubishi to Halt Onahama Copper Smelter Operations by March 2027 Amid Global Competition Concerns

Published: Mar 25, 2026 17:24

Save

According to foreign media reports, Mitsubishi Materials has stated that it will cease production operations at the Onahama copper smelter by the end of March 2027. This is mainly due to the rapidly deteriorating TC/RCs for copper concentrates, driven by intensifying competition among global copper smelters, which has raised concerns over the business outlook. The Onahama copper smelter has a smelting and refining capacity of 230 ktpa.

Data Source Statement: Except for publicly available information, all other data are processed by SMM based on publicly available information, market communication, and relying on SMM‘s internal database model. They are for reference only and do not constitute decision-making recommendations.

For any inquiries or to learn more information, please contact: lemonzhao@smm.cn

For more information on how to access our research reports, please contact:service.en@smm.cn

Related News

Common.Time.minsAgo

Mitsubishi to Halt Copper Processing at Onahama by 2027, Citing Competition and Cost Pressures

Mitsubishi Materials Corporation said on Wednesday that it had decided to cease the processing of copper concentrates at the Onahama smelter and refinery, as well as the operation of related smelting facilities, by the end of March 2027.In a statement, the company said the outlook for the related business had become increasingly uncertain due to intensifying competition from overseas smelters and a sharp decline in treatment and refining charges (TC/RCs) for copper concentrates.The company said in a statement that it expected to record an impairment loss of 21 billion yen in Q4 of the current fiscal year ending this month, mainly related to the smelter's fixed assets.

Common.Time.minsAgo

Western Mining Reports 23% Revenue Growth, 24% Profit Increase in 2025; Proposes 0.6 Yuan Dividend Per 10 Shares

Western Mining Co., Ltd. (601168) released its annual report on March 25,with operating revenue of 61.687 billion yuan in 2025, up 23% YoY; net profit attributable to shareholders of the publicly listed firm of 3.643 billion yuan, up 24% YoY; and basic earnings per share of 1.53 yuan.The company proposed to distribute a cash dividend of 0.6 yuan per 10 shares to all shareholders (tax inclusive).

Common.Time.minsAgo

Chile’s Central Bank Raises 2026 Copper Price Forecast to $5.4 Per Pound, Up From $4.7

Chile’s central bank expected average copper prices in 2026 to be $5.4 per pound, compared with its previous estimate of $4.7 per pound

Common.Time.minsAgo