|
Historic performance |
|
|
|
|
|
|
|
|
|
|
Units |
|
Dec 2017 |
|
Dec 2016 |
Dec 2015 |
|
Open pit mining |
|
|
|
|
|
|
|
Total mined |
kt |
|
15,744 |
|
14,452 |
12,962 |
|
- Waste mined |
kt |
|
8,659 |
|
7,391 |
6,120 |
|
- Sulphide tonnes mined |
kt |
|
7,085 |
|
7,061 |
6,842 |
|
Strip ratio (waste: ore tonnes) |
ratio |
|
1.2 |
|
1.0 |
0.9 |
|
Gold mined grade |
g/t |
|
1.08 |
|
1.05 |
1.05 |
|
Copper mined grade |
% |
|
0.49 |
|
0.52 |
0.50 |
|
Processing |
|
|
|
|
|
|
|
Sulphide tonnes milled |
kt |
|
6,796 |
|
6,977 |
6,710 |
|
Gold head grade |
g/t |
|
1.08 |
|
1.03 |
1.07 |
|
Copper head grade |
% |
|
0.52 |
|
0.53 |
0.52 |
|
Produced |
|
|
|
|
|
|
|
Concentrate produced |
kt |
|
153 |
|
156 |
145 |
|
Gold sold |
koz |
|
164.7 |
|
149.1 |
158.8 |
|
Copper sold |
kt |
|
30.4 |
|
29.9 |
28.2 |
|
Gold equivalent oz sold |
koz |
|
313.8 |
|
268.9 |
293.3 |
|
Plant recovery (Au)2 |
% |
|
70.4 |
|
67.5 |
71.9 |
|
Plant recovery (Cu) |
% |
|
89.0 |
|
86.6 |
86.1 |
|
Financials |
|
|
|
|
|
|
|
Average Au price received |
US$/oz |
|
1,255 |
|
1,247 |
1,163 |
|
Average Cu price received |
US$/lb |
|
2.78 |
|
2.2 |
2.5 |
|
Cost of sales before amortisation and depreciation |
US$ m |
|
154.3 |
|
140 |
144 |
|
US$/oz |
492 |
|
518 |
|
484 |
|
|
Capital expenditure |
US$ m |
|
34 |
|
43 |
65 |
|
US$/oz |
108 |
|
160 |
|
219 |
|
|
All-in Cost (AIC) |
US$/oz |
|
203 |
|
499 |
718 |
|
All-in Sustaining Cost (AISC)1 |
US$/oz |
|
203 |
|
499 |
718 |
|
Life-of-mine |
|
|
|
|
|
|
|
Mineral Reserves |
Mt |
|
86.2 |
|
46.1 |
53.1 |
|
Mineral Reserves Au Head Grade |
g/t |
|
0.70 |
|
0.88 |
0.90 |
|
Mineral Reserves Cu Head Grade |
% |
|
0.40 |
|
0.45 |
0.46 |
|
Mineral Reserves - Au |
Moz |
|
1.9 |
|
1.3 |
1.5 |
|
Mineral Reserves - Cu |
Mlb |
|
767 |
|
456 |
534 |
|