Micro-level Unit Cost and Efficiencies
Micro-level Unit Cost and Efficiencies, Empowerment & Skills Transfer [Plant]: The black line in this case is the Unit Cost [USS$/t] of steel balls only. The installation of site-specific Self-Managed Teams and Short Interval Control processes allowed previously marginalised local employees to achieve this and many other similar lower level results.
Note that this graph measures US$/t, not kg/t, and there were at least two significant steel price increases over the three year period covered by the graph. As can be seen, throughput increased and variability decreased over the same period. Grind was not negatively affected, and recoveries actually improved over the period, partly due to the steady state.