Quarterly Report 31 March 2006
OPERATIONS
Loulo
The quarter ended 31 March 2006 is the first full quarter of production since the mine became operational on 8 November 2005. Throughput at 722 000 tonnes, represents a significant achievement considering the challenges the management team had to contend with as a result of the delay in completing the Phase 2 crushing circuit.
The higher throughput served to offset the lower head grade at 2.9g/t which is, as per the revised short term feed strategy designed to minimise the impact of a delay in starting the hard rock crushing circuit caused by the defaulting construction contractor. Recovery and production are in line with expectations.
The average gold price received was US$556/oz for the quarter, representing a substantial increase when compared to the quarter ended 31 December 2005.
The significant impact on cost per ounce was the lower grade and additional rehandling and mobile crushing costs resulting from the short term feed strategy. Cash operating and total cash costs for the quarter were nevertheless in line with forecast and are expected to improve after the commissioning of Phase 2 and as the operation settles down.
Production statistics are:
|
Loulo results |
Quarter |
Quarter |
Quarter |
12 months |
|
|
ended |
ended |
ended |
ended |
|
|
31 Mar |
31 Dec |
31 Mar |
31 Dec |
|
|
2006 |
2005 |
2005 |
2005 |
|
Mining |
|
|
|
|
|
Tonnes mined (000) |
4 041 |
4 149 |
- |
12 096 |
|
|
379 |
537 |
- |
1 213 |
|
|
|
|
|
|
|
Milling |
|
|
|
|
|
Tonnes processed (000) |
722 |
551 |
- |
551 |
|
Head grade milled (g/t) |
2.9 |
4.5 |
- |
4.5 |
|
Recovery (%) |
93.2 |
94.3 |
- |
94.3 |
|
Ounces produced |
64 677 |
67 984 |
- |
67 984 |
|
Average price received (US$/oz) |
556 |
499 |
- |
499 |
|
Cash operating costs* (US$/oz) |
288 |
137 |
- |
137 |
|
Total cash costs* (US$/oz) |
323 |
165 |
- |
165 |
|
Profit from mining activity* (US$000) |
16 725 |
19 485 |
- |
19 485 |
|
Gold revenue (US$000) |
37 618 |
30 688 |
- |
30 688 |
Randgold Resources owns 80% of Loulo with the Government of Mali owning 20%. Randgold Resources consolidates 100% of Loulo and then adjusts the income statement for the minority interest.
* Refer to explanation of non-GAAP measures provided.
The prior period results for Loulo have not been affected by the change in accounting policy relating to deferred stripping as there have been no transfers to deferred stripping since the mine became operational.
As reported last quarter Somilo
The mine has had to deal with many unfinished construction items, and with numerous challenges relating to structural construction delays due to required site alterations and repairs caused by inadequacies found in some of the original contractor material. Nevertheless, the Phase 1 circuit of the project is, subject to a few re-design issues relating to the CIL circuit, now substantially complete. All aspects of the plant are now performing well and the completion of Phase 2 on time is the key focus.
The hard ore circuit representing Phase 2 has seen excellent progress despite the disruption caused by taking back the contract from the main contractor. The secondary and tertiary crushers have been installed and the primary crusher is on site awaiting installation once the civil works are finished. These are scheduled for completion in the second quarter.
The tailings return water pipeline has also been installed, allowing for the re-circulation of water back to the plant area.
Although challenging, the schedule still remains on track for the commissioning of Phase 2 towards the end of the second quarter.
Updating of the underground feasibility study allowed the conversion of 3.82 million more resource ounces into reserves.
Loulo Attributable Tonnes Grade Gold Gold (Mt) (g/t) (Mozs) (80%) Reserves Category 2005 2005 2005 (Mozs) Proven 13.75 3.48 1.54 Probable 24.82 5.07 4.05 Sub-total Proven and probable 38.57 4.5 5.59 4.47 Tonnes Grade Gold Attributable (Mt) (g/t) (Mozs) (80%) Resources Category 2005 2005 2005 (Mozs) Measured and indicated 61.86 4.54 9.03 7.22 Inferred 9.82 2.87 0.90 0.72
Gold
Morila
Morila made a good start to the year with plant throughput averaging 349 000 tonnes per month over the first quarter, in line with the design capacity of 350 000 tonnes. This 11% increase in throughput partially made up for the expected decrease in grade, and gold production for the quarter was 135 779 ounces. Costs decreased compared to the previous quarter's which were impacted by non-recurring accounting adjustments. Total cash costs for the quarter were US$231/ounce.
|
Morila results |
|
Quarter |
Quarter |
12 months |
|
|
Quarter |
ended |
ended |
ended |
|
|
ended |
31 Dec |
31 Mar |
31 Dec |
|
|
31 Mar |
2005 |
2005 |
2005 |
|
|
2006 |
(Restated)+ |
(Restated)+ |
(Restated)+ |
|
Mining |
|
|
|
|
|
Tonnes mined (000) |
6 059 |
6 798 |
7 815 |
24 554 |
|
|
1 478 |
2 199 |
1 646 |
7 041 |
|
|
|
|
|
|
|
Milling |
|
|
|
|
|
Tonnes processed (000) |
1 048 |
946 |
857 |
3 763 |
|
Head grade milled (g/t) |
4.4 |
5.2 |
6.6 |
5.9 |
|
Recovery (%) |
92.1 |
90.8 |
92.4 |
91.7 |
|
Ounces produced |
135 779 |
146 049 |
167 272 |
651 110 |
|
Average price received (US$/oz) |
560 |
485 |
428 |
449 |
|
Cash operating costs* (US$/oz) |
193 |
282+ |
179+ |
178+ |
|
Total cash costs* (US$/oz) |
231 |
319+ |
211+ |
210+ |
|
Profit from mining activity (US$000) |
42 630 |
28 120+ |
44 663+ |
158 185+ |
|
Attributable |
|
|
|
|
|
(40% proportionately consolidated) | ||||
|
Gold revenue |
29 624 |
29 865 |
31 986 |
120 814 |
|
Ounces produced |
54 312 |
58 420 |
66 908 |
260 444 |
|
Profit from mining activity (US$000) |
17 052 |
11 248+ |
17 865+ |
66 078+ |
+ Restated due to change in accounting policy related to deferred stripping. See note on accounting policies.
As indicated in the previous quarter, much of the depletion of the resource which occurred in 2005 from mining activities was replaced by year end as a result of infill drilling. This reflects in the ore reserve statement as at end 2005, based on the current orebody model.
|
Morila |
|
|
|
|
Attributable |
|
|
|
Tonnes |
Grade |
Gold |
gold |
|
|
|
(Mt) |
(g/t) |
(Mozs) |
(40%) |
|
Reserves |
Category |
2005 |
2005 |
2005 |
(Mozs) |
|
Proven |
15.95 |
3.21 |
1.65 |
||
|
Probable |
6.19 |
3.63 |
0.72 |
||
|
Sub-total |
Proven and probable |
22.14 |
3.33 |
2.37 |
0.95 |
|
|
|
|
|
|
Attributable |
|
|
|
Tonnes |
Grade |
Gold |
gold |
|
|
|
(Mt) |
(g/t) |
(Mozs) |
(40%) |
|
Resources |
Category |
2005 |
2005 |
2005 |
(Mozs) |
|
Measured and indicated |
34.07 3.78 |
2.84 3.19 |
3.11 0.39 |
1.24 0.16 |
Full details of the group's reserves and resources are contained in the annual report for the year ended 31 December 2005.
The gold price at which pit optimisation has been run, has increased from US$375/ounce to US$400/ounce, but this has been offset by increases in input costs such as diesel, transport and steel balls.
The success of the infill and resource extension drilling has led to the identification of an additional 510 000 ounces of reserves, partially replacing the 715 000 ounces delivered to the mill during 2005.
Higher density drilling has also led to the proportion of reserves in the higher confidence proven category increasing from 50% to 70%.
It is currently estimated that mining activities will cease during 2008 subject to no additional reserves being added to the mine plan, with processing of stockpiles continuing until 2013. Over the period 2006-2008 it is expected that production will be in excess of 500 000 ounces per year. At current gold prices, it is possible that additional existing mineral resources could be converted to mining reserves, thereby impacting positively on production and/or mine life.
As discussed last quarter, resource extension drilling in the south of the pit was responsible for a significant part of the additional mineral resource identified during the year. A detailed follow-up drilling programme has continued and has yielded a number of significant results which suggest continuity of the Morila orezone beyond the tonalite intrusion.
The 40 000 metre regional drilling programme has made good progress this quarter with a focus on the south westerly extension of the high grade axis identified in the pit. Low grade anomalous values have been returned for several of the drillholes and REG003, which is situated one kilometre south west along strike of the high grade zone, returned a value of 34.89g/t over 4.43 metres from a depth of 400 metres below surface. Follow up drilling on this target will involve close spaced drilling as well as a programme designed to connect the tonalite extension of the orebody with the intersection in REG003.
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Randgold Resources > Financials > Quarterly reports > 2006 > Quarterly Report 31 March 2006