Asset Report

Toyo copper smelter



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Report summary

Sumitomo has operated major copper smelters in Ehime prefecture since 1893.  Pollution was a major problem until a neutralisation plant was built in 1939.  In 1969 construction started on a large, modern and pollution free smelter to replace the Shisakajima smelter.  The Toyo smelter was commissioned in 1971 with a capacity of 850t/d concentrate.  The acid plant was uprated to a double contact system in 1978 and an oxygen plant was added in 1982.  Further oxygen plants were added in 1989 and...

What's included

This report contains

  • Document

    Toyo copper smelter

    PDF 624.29 KB

  • Document

    Toyo copper smelter.xls

    XLS 484.50 KB

Table of contents

  • Key facts
  • Summary and key issues
  • Location maps
  • Participation
    • Environmental
    • Products allocation
  • Costs
  • Economic assumptions

Tables and charts

This report includes 13 images and tables including:


  • Key facts: Table 1
  • Participation: Table 1
  • Process overview: Table 1
  • Process overview: Table 2
  • Process overview: Table 3
  • Products: Table 1
  • Costs: Table 1
  • Economic assumptions: Table 1
  • Products: Table 2


  • Detailed map
  • Flowsheet
  • Production
  • Costs: Image 1

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