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Minerals Resource Development (zinc ore, copper ore)


The mining technology that Mitsui Kinzoku developed for its Kamioka Mines (Gifu Prefecture) now serves in our exploration, mining, and ore sorting work in the Huanzala Mine and Palka Mine in Peru, South America.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

Gold and Silver


The rarity of gold drives its use in jewelry and as an investment instrument, while its workability and electrical conductivity drives its use in electronic components. Traditionally, the demand for silver was for use in photosensitive material, but now, it is often used for solar batteries and other electronic components.

Sulfuric acid


Sulfuric acid is used in a variety of applications, notably as the main ingredient in fertilizers, synthetic fibers, and titanium oxide, as well as an additive for deoxidizing and wastewater neutralization.



Lead is primarily used as electrodes for lead storage batteries. We manufacture JIS-compliant lead with a purity of 99.99% or higher.

Resource Development and Environmental Conservation Engineering Service


Resource Development Related Engineering Services. Environmental Conservation Related Engineering Services. Mining and sale of Zeolite. Read more

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