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Mitsubishi Materials, Japan, may reduce copper smelting because of declining margins

Mitsubishi Materials, Japan's copper concentrate processor, is looking at reducing the amount of copper concentrate processed in its Onahama Smelter & Refinery due to falling treatment and processing costs (TC/RCs), it announced on Monday.

JX Advanced Metals, a competitor, announced in June that it would also consider reducing copper production due to the significant decline in ore purchasing terms.

Mitsubishi Materials warned that the worsening TC/RCs of miners would further reduce smelting profits.

The company stated that in order to maintain and improve profits, it was necessary to increase the proportion of recycled raw materials. It also needed to accelerate the transition to feedstocks less susceptible to TC/RC fluctuation.

Mitsubishi Materials announced that it is considering a partial shutdown and reduction of copper concentrate processing in Onahama after scheduled maintenance between October and November of this year.

Tetsuya Tanaka, chair of the Japan Mining Industry Association, warned last month that domestic copper smelters would face tough mid-year negotiation with global miners regarding TC/RCs. He said they could not accept terms so low agreed upon by Chinese smelters.

In mid-year negotiations, some Chinese smelters reached TC/RCs with Chilean miner Antofagasta of $0 per ton and 0c per pound. These rates are considered an industry benchmark, and they are far below 2025 charges of $21.25 per ton and 2.125cents per pound.

Tanaka, also the president of Mitsubishi Materials, stated at that time that shrinking margins in smelting were placing non-Chinese companies under extreme pressure. (Reporting and editing by Emelia Sithole Matarise; Yuka Obayashi)

(source: Reuters)