Operations Overview

Operations Overview

Lisbon Valley Mining Company employs approximately 70 employees to operate a heap leach open pit copper mine.  The Company’s operations currently focus on mining run of mine ore from two open pits which are continuously mined with a fleet of Caterpillar mobile equipment.  Mobile mining equipment ranges in size from 42 to 100 ton hauling capacity.

The Company produces its copper by placing run of mine ore on a lined leach pad where copper is released from its host rock into solution.  The copper in solution is then recovered through a solvent extraction/ electrowinning process which creates sheets of 99.999% pure copper cathode.  Lisbon Valley Mining Company operates a closed loop recovery process and reuses or recycles all of the materials that its operations consume.  The Company has infrastructure in place to support up to 50 million pounds of annual copper production.

Lisbon Valley Mining Company’s current project life is approximately 10+ years.   Annual production is forecast to range between approximately 20 – 30 million pounds per year.

Project Statistics

  • Measured, Indicated and Inferred (“MI&I”) Resources of 256 million pounds of copper as of June 2013
  • Approximate 10+ year remaining project life
  • Fully developed infrastructure
  • Significant resource potential of 550+ million pounds
  • Metallurgical run of mine ore recovery of up to approximately 80%
  • Experienced operating team on site which successfully lead turnaround
  • Project is fully permitted

Operations Leadership





Tori Mele
Process General Supervisor






Audren Adams
   Mine Operations Superintendent