Operating statistics

    Historic performance  
  Units C2015     C2014 C20131 C2012
Open pit mining              
Total mined kt     262
– Waste mined kt     83
– Ore mined kt     179
Mined grade g/t     1.4
Strip ratio (tonnes) waste:ore     0.5
Underground mining              
Total mined kt 1,939     1,767 1,236 845
– Waste mined kt 740     573 506 222
– Ore mined kt 1,199     1,194 730 623
Mined grade g/t 6.4     7.2 9.1 8.5
Processing              
Tonnes treated kt 1,218     1,246 974 943
Head grade g/t 6.4     7.1 7.5 6.1
Yield g/t 6.1     6.8 6.9 5.8
Plant recovery factor % 94.8     94.4 92.9 93.2
Total gold production koz 237     271 216 177
  kg 7,360     8,420 6,706 5,494
Financials              
Average Au price received US$/oz 1,158     1,266 1,413 1,668
  A$/oz 1,544     1,407 1,372 1,720
Exchange rate (annual average) US$/A$ 0.75     0.90 1.03 0.97
Operating cost A$/oz 801     708 647 808
Capital expenditure A$/oz 410     341 250 342
All in sustaining cost (AISC) A$/oz 1,276     1,097 949 1,253
  US$/oz 959     990 919
Life-of-Mine              
Mineral Reserves Mt 3.4     3.6 4.2 6.0
Mineral Reserves head grade g/t 6.16     7.44 7.05 5.96
Mineral Reserves Moz 0.67     0.87 0.95 1.15
1 From Dec 2013, results and Mineral Reserves are inclusive of the New Holland (Lawlers) Operation. Rounding off of figures presented in this report may result in minor computational discrepancies. Where this occurs it is not deemed significant.