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Powder metallurgy


These powders are manufactured by leveraging the atomizing process.

Mitsui Perlite


Mitsui Perlite is formed by crushing pearlstone, a natural volcanic glass, or pitchstone. This is then rapidly heated and allowed to expand, resulting in an airtight amorphous … Read more

Alumina, Silicon Carbide (SiC) refractories


Mitsui Kinzoku manufactures high-quality high-performance and energy-saving refractory materials made from select high-grade materials using proprietary technology and facilities.

Corrosion Prevention Business


Nakabohtec Corrosion Protecting Co., Ltd operates a corrosion prevention business designed to solve corrosion issues customers face with port and harbor structures that surround Japan, salt-air damaged concrete structures, pipelines that support life infrastructures, plant facilities, gate facilities, etc.Read more



Zinc is primarily used as a plating material to create anti-corrosive coating on steel. We offer custom products, such as high grade zinc by LME standards, and distilled zinc and mixed zinc pursuant to JIS standards.

Zinc base alloys


Mitsui KinzokuWe offers type 1 and type 2 alloys under the JIS standard. We also manufacture proprietary alloys such as ZAS (a type 3 alloy) and ZAPREC.



Copper, characterized by its superior electrical conductivity and workability, has found widespread application in wires, various electronic components, and processed

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