- JMC
Offering raw materials for iron and steel, high‑purity metals, functional materials like hydrogen‑absorbing alloys.
https://www.jmc.co.jp/en/
- Mitsui Kinzoku
Develops and produces non‑ferrous metals, smelting products and industrial materials with applications across automotive.
https://www.mitsui-kinzoku.com/en/
- Nippon Steel
Focusing on the production of high-quality steel products while providing comprehensive industrial solutions, including engineering support.
https://www.nipponsteel.com/en/
- Sumitomo Metal
A globally integrated non‑ferrous metals company with a unique business model combining mineral resource development.
https://www.smm.co.jp/en/
- Tanaka
Specializes in precious metals materials and processing for electronics, automotive and industrial applications.
https://www.tanaka.co.jp/english/
- Toho Zinc
Manufactures zinc and lead products through integrated refining, mining and recycling processes.
https://www.toho-zinc.co.jp/eng/
- Yano Metals Co Ltd
A manufacturer of titanium, cobalt, nickel, tantalum, niobium, zirconium, germanium, chromium, rhenium and gallium.
https://www.yanokinzoku.co.jp/en/
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