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Sumitomo Metal Mining — Toyo Smelter & Refinery, Saijo, Ehime, Japan

Sumitomo Metal Mining Co., Ltd. · Japan
Japantelluriumrefiningcopper concentrate smeltingelectrorefiningtellurium recovery (USGS-listed tellurium refineryunit operations not published)Checked 9 November 2026 · source dated 2024 HIGH
Who
Sumitomo Metal Mining Co., Ltd.
Sumitomo Metal Mining Co., Ltd. (Sumitomo Group)
What
tellurium — copper concentrate smelting, electrorefining, tellurium recovery (USGS-listed tellurium refinery, unit operations not published)
Capacity Flag unknown
Not disclosed
Status
Operating
Actual output
Gated — subscribe to see actual output
Who they sell to
Gated — subscribe to see offtake agreements
How to reach them
https://www.smm.co.jp
Notes
SMM's Niihama copper refinery treats copper and lead tankhouse slimes to recover tellurium along with selenium, antimony and bismuth; SMM states selenium is a copper-ore by-product 'in addition to tellurium, rhenium, etc.' USGS lists the adjacent Toyo smelter-refinery as the tellurium refinery site, with no disclosed capacity. Products stated: tellurium; selenium; rhenium; copper; gold; silver; nickel; cobalt; sulfuric acid

Proof

Checked 9 November 2026 · source dated 2024
  1. https://pubs.usgs.gov/myb/vol3/2024/myb3-2024-japan.pdf
  2. https://www.smm.co.jp/en/business/refining/products/serenium/
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