REVIEW OF OPERATIONS: SOUTH AFRICA REGION
OVERVIEW
Location: Kloof is situated some 60 km west
of Johannesburg at latitude 26°24’S and
longitude 27°36’E, near Westonaria in the
Gauteng Province of South Africa. The mine
is accessed via the N12 highway between
Johannesburg and Potchefstroom. Geologically
the mine is located on the main Western Rim
of the Witwatersrand Basin. Infrastructure:
Kloof consists of six shaft systems and two
gold plants. Geology: Kloof exploits auriferous
palaeoplacers (reefs), namely the Ventersdorp
Contact Reef (VCR) that constitutes 83 per
cent of the Kloof Underground Mineral Reserve
ounces, the Middelvlei Reef (MR) 15 per cent
and two per cent from the Kloof Reef (KR).
Mine type and depth: It is a large, well-established
intermediate to ultra deep level
gold mine to 45 level (the lowest working level)
some 3,347 metres below surface. Employees
in service: The mine has 14,522 permanent
employees and 1,619 contractors.
SAFETY AND ENVIRONMENT
During the year, ten employees lost their lives
in eight separate incidents, compared to
fifteen fatalities in F2008. Five incidents were
caused by seismic induced falls of ground
and one by a gravity induced fall of ground.
Falls of ground (gravity and seismic related)
remained the major cause of injuries. There
has been a 30 per cent improvement in the
fatal injury frequency rate from 0.33 to 0.23,
and a 52 per cent improvement in the serious
injury frequency rate from 6.96 to 3.31. The
lost day injury frequency rate improved 45 per cent from 11.05 for F2008 to 6.03 for F2009.
Kloof achieved 1 million fatality free shifts on
9 October 2008.
The mine remains committed to the zero
harm philosophy and has introduced further
improvements to its behaviour based training
and safety programmes. The Gold Fields Safe
Production Rules are also being rolled out in
a 20-week process together with the Fall of
Ground or “Stop & Terminate All Rockfalls”
(STAR) campaign.
Following the heightened safety awareness
across the Group, Kloof has adopted a more
prudent approach to pillar mining. Identified
remnant pillars are comprehensively analysed
and approved by the Rock Engineering
Department before any mining takes place.
Kloof was exposed to the external audit by
DuPont as well as an internal audit of the Full
Compliance Safety Management System.
Remedial action plans emanating from these
audits provide the platform for continuous
health and safety improvements.
During the year, Kloof was issued with various
instructions to stop operations through the
DMR’s Section 54 mechanism with respect to
accidents that related to support, grizzlies, shaft
repair work and centralised blasting. Following
these stoppages, standards were revised
and, in addition, physical audits were done on
workplaces and practices to improve safety
awareness.
Kloof maintained its OHSAS18001 and
ISO14001:2004 (Environmental Management
System) accreditation through the various
external audits conducted during F2009.
OPERATIONAL REVIEW
Gold produced decreased by 22 per
cent from 25,533 kilograms in F2008 to
19,998 kilograms in F2009. This was due to
major infrastructure repairs at Main shaft which
disrupted production in the first half of the year,
safety related stoppages and an underground
fire at 7 shaft also impacted negatively on
mining volumes.
As a result of the lower mining activity tons
milled from underground decreased from
2.94 million tons in F2008 to 2.40 million
tons in F2009. Surface tons decreased from
1.01 million tons to 0.92 million tons due to a
reduction in toll milling at South Deep, partially
offset by an increase in surface ore processed a
Kloof 1 and 2 plants.
Main development decreased from 33,582
metres in F2008 to 22,838 metres in
F2009. This decrease was mainly due to the
redeployment of development crews to address
the secondary support backlog.
Revenue increased from R4,805 million in
F2008 to R5,066 million in F2009. The higher
gold price received was partially offset by the
lower production.
Operating costs increased by 15 per cent
from R2,690 million in F2008 to R3,084 million
in F2009. This increase was mainly due to
increased labour costs, an increase in raw
material prices, increased electricity tariffs and
higher contractor costs associated with the
transport of ore from 4 shaft to 2 plant. This
was as a result of the logistical constraints
experienced during the Main shaft repair
programme.
Total cash cost increased from R100,419 per
kilogram (US$430/oz) in F2008 to R146,930 per
kilogram (US$507/oz) in F2009 as a result of
the higher costs and lower production.
Operating profit, before amortisation, decreased
from R2,115 million in F2008 to R1,983 million
in F2009. Operating margin decreased from
44 per cent in F2008 to 39 per cent in F2009.
Capital expenditure increased from R898 million
in F2008 to R959 million in F2009. The main
contributors to this increase were capitalised
ore reserve development, the 4 shaft complex
and the Social and Labour Plan project.
Notional cash expenditure increased from
R140,512 per kilogram (US$601/oz) in F2008
to R202,140 per kilogram (US$698/oz) in
F2009.
F2010 Focus Areas
- Safe production management;
- Finalising of the Main shaft pillar extraction
project;
- Elimination of secondary support backlog;
- Increasing mining flexibility by accelerating
development;
- 100 per cent mechanisation of all flat end
development;
- Intensifying ‘old’ gold recovery; and
- Advancing the commitments as set out in
the Kloof Social and Labour Plan.
|
Serious Injury Frequency Rates
per million man hours worked


|
|
Kloof Gold Mine
| |
|
|
|
|
2009 |
|
2008 |
|
2007 |
|
2006 |
|
| |
Main development |
|
km |
|
22.8 |
|
33.6 |
|
35.0 |
|
30.4 |
|
| |
Main on-reef (development) |
|
km |
|
3.7 |
|
5.0 |
|
6.1 |
|
7.3 |
|
| |
(value) |
|
cm g/t |
|
1,777 |
|
1,717 |
|
1,410 |
|
1,788 |
|
| |
Area mined |
|
'000m |
|
428 |
|
519 |
|
620 |
|
607 |
|
| |
Productivity |
|
m2/TEC* |
|
2.2 |
|
2.6 |
|
2.9 |
|
3.4 |
|
| |
Tons milled |
Underground |
'000 |
|
2,398 |
|
2,941 |
|
3,447 |
|
3,206 |
|
| |
|
Surface |
'000 |
|
921 |
|
1,012 |
|
382 |
|
460 |
|
| |
|
Total |
'000 |
|
3,319 |
|
3,953 |
|
3,829 |
|
3,666 |
|
| |
Yield |
Underground |
g/t |
|
8.1 |
|
8.4 |
|
8.2 |
|
8.7 |
|
| |
|
Surface |
g/t |
|
0.7 |
|
0.9 |
|
1.2 |
|
1.1 |
|
| |
|
Combined |
g/t |
|
6.0 |
|
6.5 |
|
7.5 |
|
7.8 |
|
| |
Gold produced |
Underground |
kg |
|
19,316 |
|
24,587 |
|
28,260 |
|
27,915 |
|
| |
|
Surface |
kg |
|
682 |
|
946 |
|
445 |
|
514 |
|
| |
|
Total |
kg |
|
19,998 |
|
25,533 |
|
28,705 |
|
28,429 |
|
| |
|
Total |
'000oz |
|
643 |
|
821 |
|
923 |
|
914 |
|
| |
Operating costs |
Underground |
R/ton |
|
1,254 |
|
893 |
|
727 |
|
703 |
|
| |
|
Surface |
R/ton |
|
84 |
|
62 |
|
82 |
|
61 |
|
| |
|
Total |
R/ton |
|
929 |
|
680 |
|
662 |
|
622 |
|
| |
Gold sold |
|
kg |
|
19,998 |
|
25,533 |
|
28,705 |
|
28,429 |
|
| |
Total cash cost |
|
US$/oz |
|
507 |
|
430 |
|
366 |
|
374 |
|
| |
|
|
R/kg |
|
146,930 |
|
100,419 |
|
84,672 |
|
76,918 |
|
| |
Notional cash expenditure |
|
US$/oz |
|
698 |
|
601 |
|
498 |
|
472 |
|
| |
|
|
R/kg |
|
202,140 |
|
140,512 |
|
115,377 |
|
97,200 |
|
| |
Net earnings |
|
Rm |
|
772.8 |
|
947.9 |
|
790.3 |
|
209.9 |
|
| |
Capital expenditure |
|
Rm |
|
958.6 |
|
897.7 |
|
775.8 |
|
482.7 |
|
* TEC = Total Employees Costed |
|