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Metals Business

Global demand for copper should remain stable in the years ahead. Mitsubishi Materials continues to hone its smelting technologies to lower costs, optimize efficiency, and eliminate pollution. One key contribution in that regard is the revolutionary Mitsubishi Process, which has garnered considerable attention for its high efficiency and cleanliness as the world's first continuous-smelting process for copper. We commercialized the Mitsubishi Process in 1974. We recently deployed it at PT. Smelting in Indonesia, with great success. The Onsan Smelter & Refinery in Korea started using the Mitsubishi Process in 1998, after which it was deployed at other new facilities, a testament to the high global regard for the efficiency and cleanliness of the process.
Mitsubishi Materials has captured a top share of the global market for oxygen-free copper and copper alloys that result from special melting and casting processes for high-purity electrical copper. We expect applications to keep expanding in such fields as rolled copper, automobiles, and semiconductors and electronics.

Sales & Operating Profit by Segment

Copper billets
Copper cakes
Copper wire
Copper ball
PT. Smelting
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