If you take production in ounces and AISC as costs/ounces these are one and the same. It's just arithmetic that if costs stay the same and production drops then as the denominator in he AISC the AISC MUST go up. It's the same with head grade since the "dirt" through the mill is usually maxed out then as the head grade goes down then the number of ounces of gold in the "dirt" also goes down. To have a low AISC you need high head grade, full production (i.e dirt through the mill), low mining costs (i.e high grade ore near the surface and next to the processing plant) and high recovery (i.e the ore is NOT refractory).
SBM Price at posting:
$2.55 Sentiment: Hold Disclosure: Held
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