Hitachi Metals, now rebranded as Proterial, is a global leader in advanced materials and specialty metals, delivering high-performance magnetic materials, specialty steels, and functional components to industries ranging from automotive and electronics to energy and infrastructure. With deep Japanese engineering heritage and a worldwide manufacturing presence, Proterial is recognized for its precision metallurgy and materials innovation. The company continues to serve as a critical Tier 1 and Tier 2 supplier across complex, high-reliability supply chains.
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