I think you are referring to the September quarter report: "The...

I think you are referring to the September quarter report:
"The third quarter saw lower than anticipated copper production due to low mining movements. The lower movements were associated with prolonged wet and windy weather conditions, poor primary excavator availability and preventative and remedial geotechnical measures predominantly associated with the east wall slippage and projects to enhance the pit wall integrity above long term ramps. The impact of lower movements within the quarter is that it defers copper production, and adds fixed mining costs to later periods. The lower copper production increases the C1 Cost for the current quarter and the year. While copper production was lower than planned, this production is deferred to the future, not lost."
However that was lower production for a matter of weeks which, in itself, wouldn't provide HGO with a mine life through 2018 and 2019.
We'll know more when the prelim and annual report are released. In these volatile times it is nice to know that HGO is generating $6-7m per month in cash flow.