De Bron Merriespruit (DBM) Gold Mine Project Definitive Feasibility Study

Wits Gold is the mineral right holder of the De Bron and Merriespruit prospects in the Free State Goldfield approximately 20 kilometres to the south of Welkom, South Africa. The two prospects are being considered together as a single entity and have been named the De Bron Merriespruit South Project or (DBM Project). The mineral reserve for the DBM project contains an Indicated Mineral Resource of 26.7 Mt at 5.8 g/t gold, providing 4.99 Moz of gold. The ore body target mining area depths will vary between 500m and 1150m.

The company has recently undertaken the Pre-Feasibility Study (PFS) for this project, which has showed positive results. In order to continue with the advancement of the project Wits Gold required the completion of a bankable definitive feasibility study, which they awarded to Royal HaskoningDHV.

The objective of the study was to provide the basis for an execution plan for the project at a level commensurate with obtaining external funding.


Royal HaskoningDHV was responsible for the delivery of the study project to the definitive feasibility study level.  Design work, costing and evaluation of the mining project was completed, enabling detailed financial and technical analysis to be performed.

We responsible for the overall compilation of the feasibility study as well as the detailed design and costing of the following major sections:

  • Mineral reserves and mining
  • Resource access options
  • Metallurgical processing
  • Bulk supplies
  • Surface Infrastructure
  • Underground infrastructure
  • Waste dump, stockpiles and tailing storage facility
  • Business case economics and risk sensitivities
  • Project co-ordination and integration
  • Mineral reserve sign off
  • Project execution plan

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