Proterial, Ltd. is a Japan-based manufacturer of advanced materials and specialty components for industrial, automotive, energy, electronics and infrastructure applications. The company develops and produces specialty steels, magnetic materials, copper products, wires and cables, and other engineered materials designed to support demanding performance and reliability requirements.
Its products are used in areas such as automotive systems, electric and hybrid vehicles, power generation and transmission, industrial equipment, electronics, semiconductors and information technology. Proterial also provides materials and components for applications that require heat resistance, high strength, electrical conductivity, magnetic performance or corrosion resistance.
The company was formerly known as Hitachi Metals, Ltd. and adopted the Proterial name in 2023 following its acquisition by a consortium led by Bain Capital. Headquartered in Japan, Proterial serves customers through manufacturing, research and sales operations in Japan and international markets, including North America, Europe and Asia.
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