RE: closer11 Dec 2018 17:40
Sorry RA, I have just checked and stand corrected, you are correct. This most likely partly explains where the Q2 cash went despite reporting reasonable AISC numbers.
Per World Gold Council:
The initial development of a new open pit or underground mine, including related infrastructure should be considered non-sustaining. If a second pit or a second underground mine is developed at the same operation, the initial stripping or surface underground development should also be characterised as non-sustaining if it meets the materiality thresholds for a ‘major project at an existing operation’.
So, on the basis of the guidance above, the stripping and development costs for both open pits probably were excluded from the AISC numbers entirely.
On the ball mill, the World Gold Council's guidance states:
“Non-sustaining costs are primarily those costs incurred at ‘new operations’ and costs related to ‘major projects at existing operations’ where these projects will materially benefit the operation. A material benefit to an existing operation is considered to be at least a 10% increase in annual or life of mine production, net present value, or reserves compared to the remaining life of mine of the operation. Companies should publicly disclose the ‘new operations’ and ‘major projects at existing operations’ that are considered non-sustaining. ” The determination of classification as sustaining or non-sustaining requires judgment by a company’s management.
I think HUM have guided a material increase in LoM production from the ball mill, so again, you're probably correct in assuming the ball mill will be excluded from the AISCs.