Volta Grande Project

Americas, Brazil, South America
The Volta Grande Gold Project is located in Pará State, Brazil, approximately 60 kilometres south-east of the city of Altamira. This greenfield project is based on processing 3 Mtpa of free-milling gold ore through a conventional gravity / carbon-in-leach (CIL) gold plant, capable of being expanded to 6 Mtpa. Ore will be mined from an open pit.

The scope of work included the provision of engineering services to optimise the design of a 3 Mtpa process plant and associated infrastructure. This included consideration for the later expansion to 6 Mtpa. Scope included process and engineering deliverables to support capital and operating cost estimates to -10% to +20% accuracy.

At completion of the Feasibility Study (FS), Lycopodium successfully reduced the initial capital cost from $811 million to $300 million and reduced the life-of-mine (LOM) capital cost from $1,026 million to $546 million.

Project improvements:

  • Optimised mine plan to process higher-grade ore earlier in mine life
  • Leased mine fleet versus owner-operated mine fleet
  • Staged development
  • Single-stage SAG mill in Phase 1 deferring the cost of the ball mill to Phase 2
  • Small process plant footprint
  • Reduced infrastructure by combining building into multiple purpose spaces.

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