| All figures stated gross |
Unit |
FY 2011 |
FY 2010 |
Variance |
| Sales |
| Revenue |
US$M |
21.8 |
13.5 |
+62% |
| Diamonds sold |
Carats |
89,491 |
72,629 |
+23% |
| Average price per carat |
US$ |
244 |
185 |
+32% |
| ROM Production |
| Tonnes treated |
Tonnes |
183,506 |
168,840 |
+9% |
| Grade |
Cpht |
45.7 |
42.0 |
+9% |
| Diamonds recovered |
Carats |
83,876 |
70,950 |
+18% |
| Tailings Production |
| Tonnes treated |
Tonnes |
52,389 |
30,640 |
+71% |
| Grade |
Cpht |
6.9 |
10.7 |
-36% |
| Diamonds recovered |
Carats |
3,612 |
3,282 |
+10% |
| Total Production |
| Tonnes treated |
Tonnes |
235,895 |
199,480 |
+18% |
| Diamonds recovered |
Carats |
87,488 |
74,232 |
+18% |
| Costs |
| On-mine cost per tonne |
ZAR |
684 |
669 |
+2% |
| Total Capex |
US$M |
5.2 |
2.5 |
n/a |
Helam and Sedibeng put in a strong performance in FY 2011, with revenue for the Fissures unit as a whole up 62% to US$21.8 million and overall production up 18% to 87,488 carats. The average value per carat achieved also increased 32% to US$244.
For FY 2012, Petra expects a similar level of combined production across the fissure portfolio to FY 2011.
At Star, where operations are challenging, a disappointing performance was recorded for the year, as reflected in the impairment charge incurred.
Unit costs remain flat despite cost pressures specifically relating to electricity and labour. The majority of the US$5.2 million Capex was spent on continuing underground development across the fissure mines including a head gear installation at Sedibeng’s Dancarl shaft.
A further US$11.0 million Capex spend was incurred in respect of the Helam projects manufacturing facility for equipment under construction for other mines and projects within the Group.