Asset report
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9 Pages

Cajamarquilla (Electrolytic) zinc smelter

Cajamarquilla (Electrolytic) zinc smelter

Report summary

The Cajamarquilla smelter in Peru uses roast, leach, electrowin technology to produce slab zinc. Leach residue is treated by the Goethite process.
The current capacity is 320kt/a slab zinc, following a "twining" in 2010. There are no plans to increase this further.

What's included?

This report includes 2 file(s)

  • Cajamarquilla zinc smelter PDF - 518.52 KB 9 Pages, 10 Tables, 4 Figures
  • Cajamarquilla zinc smelter.xls XLS - 545.50 KB


This Zinc Metals Smelter report provides a detailed analysis of the cost profile, process overview, products and key issues for this asset, as well as a detailed location map.

For zinc producers, advisors and financial companies, this report provides an understanding of the value and efficiency of the operation. Use this report to understand the competitive position, identify acquisition opportunities and strengthen business strategies.

Wood Mackenzie's cost methodology is the established global industry standard, relied on by the world’s leading investment banks and mining companies to make strategic, operational and investment decisions.

Our analysts are based in the markets they analyse, working with high-quality proprietary cost databases and cost curve analyses to write consistent and reliable insights. Our database includes over 2,450 asset analyses covering more than 1,000 companies worldwide.

  • Key facts
  • Summary and key issues
    • Summary
    • Key issues
    • The smelter was commissioned in 1981 under the ownership of Minero Peru. However in 1992, the Peruvian Government indicated in 1992 that the smelter would be privatised by public auction during 1994. A minimum price was set at US$120M cash plus US$40M of Peruvian debt equity and the successful bidder was expected to make investments of US$20M over four years. In the event a joint bid of US$193M by Cominco (82%) and Marubeni (17%) was successful, and the companies took over the smelter on 2 February 1995. Teck Cominco raised its share of ownership to 85% in 2003. In 2004 the Cajamarquilla smelter (Cominco and Marubeni shares) was sold to Votorantim Metais for US$210M, with additional future potential payments linked to zinc prices.
  • Location maps
  • Participation
  • Process overview
  • Products
  • Costs
  • Timeline
  • Economic assumptions

In this report there are 14 tables or charts, including:

  • Key facts
    • Key facts: Table 1
  • Summary and key issues
  • Location maps
    • Detailed map
  • Participation
    • Participation: Table 1
  • Process overview
    • Flowsheet
    • Feed preparation
    • Roaster & Acid plant
    • Leaching & Purification
    • Tankhouse, melting & Casting
  • Products
    • Production
    • Products: Table 1
    • Products
  • Costs
    • Costs: Image 1
    • Costs: Table 1
  • Timeline
  • Economic assumptions
    • Economic assumptions: Table 1
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