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The source included the following definitions:
"Total Cash Cost (TCC) is a metric which includes all operating costs incurred at the mine site, such as open-pit and underground mining, ore processing (crushing, grinding, leaching, etc.), and onsite general and administrative costs incurred in producing an intermediate gold-bearing product, such as a doré or sulphide concentrate. TCC also includes certain offsite costs; the cost of transporting the intermediate production from the mine site to a smelter or refinery; and the cost of further downstream processing to produce refined gold.
All-in Sustaining Cost (AISC) includes cost items that are additional to TCC, with a view to better reflect the full cost of keeping the mine in business. AISC therefore includes exploration costs expensed by the mine owner; sustaining ("maintenance," or "ongoing") capital costs; an allocation for corporate overhead charges not otherwise accounted for at the mine site level; plus reclamation and remediation expenses or accruals."