@Technician, I don't think any shareholder expected the Dec'18 AISC to be as high as $1606/oz when management reassurances set expectations at a much lower value of $1450/oz.
My guesstimate AISC of $1780/oz for the Mar'19 quarter expects the unexpected....(items 1, 2, 3, 4, 5, 6, 7, 8, possibly 9 & 10).
- Stoping extent of UG further delayed for similar unexpected reasons described in the Sep'18 quarterly (page 5) & Dec'18 quarterly (page 4): requiring further development.
- Higher than expected strip ratios.
- Complex lodes contributing further to grade under calls.
- Lower than expected high-grade ore intercepts.
- Lower than expected milled grade.
- Lower than expected mill throughput.
- Lower than expected accumulation of high-grade stockpiles.
- Higher than expected movement of low grade stockpiles.
- X-factor (unexpected geotech issues related to steeper wall angles at Wiluna i.e. rock falls / slippage).
- Higher end of 'management expectations' AISC downgraded to $1700/oz (....just add another $80/oz & 'abracadabra hey presto'...we get to $1780/oz)
Hope the above helps to clarify my AISC $1780/oz guesstimate.
Cheers.
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