Literature reveals various reconciliation techniques adopted by mining companies. These have been described as Depletion by Mining; Reconciliation of Resources with Grade Control; Reconciliations between Ore Reserves, Grade Control and Production; and the use of Reconciliation Factors (mine call factors). A mine with a consistent record of poor reconciliation may be battling with one or more of the following issues: Perceived Complexity of the Reconciliation Process; Shifting of Blame/Responsibilities; Poor Material Tracking; and Superfluous Parameter Alterations to meet expectations