Copper Foil Division
Mitsui Kinzoku's Copper Foil Division is a leading manufacturer of electrolytic copper foil, offering a broad product lineup ranging from standard grades to advanced solutions that enable ultra-fine circuit formation. Backed by strong development capabilities, we continue to lead the market through innovation and technological excellence. Our development, manufacturing, processing, and logistics operations are strategically located across Japan, Asia, and North America, enabling us to serve customers worldwide with a stable and responsive supply network.
Catalysts Division
Mitsui Kinzoku supplies high-performance catalysts developed through its proprietary technologies to customers worldwide. Our catalysts are primarily used for exhaust gas purification in automobiles and motorcycles, contributing to cleaner mobility and a more sustainable society.
Engineered Powders Division
Mitsui Kinzoku's Engineered Powders Division possesses a wide range of manufacturing technologies, including atomization (water and gas), wet synthesis, heat treatment, milling, dispersion, and classification. By combining these technologies, we can precisely control particle size, shape, composition, and surface characteristics, enabling stable mass production with consistent quality. Supported by an integrated manufacturing platform that spans from research and development to full-scale production, we provide customized solutions tailored to customer requirements while ensuring a stable and reliable supply.
Rare Material Division
Mitsui Kinzoku provides an integrated supply chain covering the refining, processing, and sales of rare metals and rare earth materials. Leveraging solvent extraction and ion-exchange technologies, we were among the first in the industry to achieve mass production of high-purity rare earth products. Today, our rare metal and rare earth materials are used not only in a wide range of electronic components, but also across diverse industries, including energy, healthcare, and semiconductors. Through the continuous development of high-quality rare metal and rare earth products, we contribute to society while pursuing the sustainable growth and long-term development of our business.
Ceramics Division
Built on refractory and fine ceramics technologies cultivated since 1933, Mitsui Kinzoku's Ceramics Division specializes in a wide range of ceramic materials, from refractories to advanced fine ceramics. Leveraging advanced manufacturing technologies and design expertise, we provide high-performance products globally, including setters for electronic component firing and filters for molten aluminum filtration. Our products contribute to longer service life, improved energy efficiency, and enhanced process stability, even in demanding operating environments.
PVD Materials Division
Mitsui Kinzoku's PVD Materials Division develops sputtering target materials essential for PVD processes used in the production of OLED and LCD panels, leveraging materials expertise cultivated through years of experience in non-ferrous metals. With extensive experience in materials such as ITO and IGZO, we ensure stable quality and reliable supply through our production bases in Japan and Taiwan. Our flexible development capabilities enable us to deliver optimized PVD materials that meet the diverse requirements of customers and applications.
Engineered Liquids Commercialization Promotion Division
Mitsui Kinzoku's Engineered Liquids Commercialization Promotion Division develops advanced liquid materials that create new functionality and added value for a wide range of applications. Through our innovative rare metal solution material series, iconos™, and proprietary anti-fouling and anti-fog coatings, we provide solutions to diverse customer challenges. By enabling energy savings and shorter process times, our technologies help reduce environmental impact while supporting the realization of a maintenance-free society.
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