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1
20 Shaft Project
Investor VisitOctober 2005
2
1#9#
10#
2/2A# 5#
4#
11#
14#
12#8#6#
7A#
7#
14A# Dec..
14B# 11C#
12N
12S
20#Blocks
‘A’ ‘B’ ‘C’
19#
19# Dec.
18#17#
17# Dec.
17A#
21#
16# Dec.
Reinkoyalskraal 278 J.Q.Portion 3
Reinkoyalskraal 278 J.Q.Remaining Extent
(Prospecting Permit)
Welbekend 117 J.Q.(Prospecting Permit)
N
Kilometers
0 15
Paar
dekr
aal 2
79 J
.Q.
16#Project
Impala Lease Area: Location of 20 shaft
2
3
20 Shaft Resource/Reserve
*
Block A,B = 38 m tonnesBlock C = 20 m tonnesWedge, Block D = 15 m tonnesTotal = 73 m tonnes
N
4
Scissor Faults
Undulating Reef Plane
20 Shaft Geology - 3D Seismic model
*
3
5
20 Shaft Resource/Reserve – Block A and B
*
139.83.6738.130.3Total
53.03.5115.19.5UG2
86.73.7723.020.1Merensky
Metalcontent(000 kg)
Reservegrade(g/t)
Reservetonnes
(t)
Resource(million t)
Economichorizon
6
20 shaft – Mining parameters
• Mining of Merensky reef first followed by UG2
• 185 ktpm reef production at steady state
• Conventional breast stoping handheld pneumatic rockdrills
• Scraper winch cleaning
• Conventional footwall tracked 10-tonne locomotives and 6-tonne hoppers
• Monorail for material transport
• Chairlifts for men transport
*
4
7
20 shaft – Underground layout
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20 shaft - Underground cross-section
Ventilation shaft Main shaft
1 x Merensky decline
Conveyor Decline
Shaft bottom106 Lvl
Main90 Lvl
97 Lvl
100 Lvl
Shaft pillar extraction87 Lvl
2 x Material decline
94 Lvl UG2 shaft pillar extraction UG2 reef horizon
*
5
9
20 shaft - Production profile
-
20
40
60
80
100
120
140
160
180
200
F2006 F2008 F2010 F2012 F2014 F2016 F2018 F2020 F2022 F2024 F2026 F2028 F2030 F2032 F2034
Thousands
Mon
thly
Ton
nage
MERENSKYMERENSKY UG2UG2
Financial year
10
Key dates
7915/05/11Full production
5115/01/09Start tonnage build up
3724/10/07Complete ventilation shaft
5114/01/09Complete main shaft
1401/12/05Shaft sinking commences
01/10/04Mobilisation
MonthsDateKey dates
**
6
11
20 Shaft – site layout
12
Financials (Base date – April 2004)
Capital cost• Base date budget − R 2.1bn
• Escalated budget − R 3.0bn
Working costs• Mining (Base date) − R178 per tonne
*
7
13
Time saving initiatives
• Fast track main shaft civils
• Concurrent construction work in the winder house
• Use of second hand rock winder
• Sink main shaft with permanent winder and headgear
14
Current project status
• Phase I infrastructure – complete (power, water and sewerage)
• Phase I civils – 95% complete
• Both shafts in full sink
• Main shaft sinking – 222m BC
• Ventilation shaft sinking – 373m BC
• Second outlet – 236m total advance
*
8
1520 Shaft – Month 1
1620 Shaft – Month 3
9
1720 Shaft – Month 6
1820 Shaft – Month 9
10
19
Overview of terrace and contractor laydown areaNo 20 Shaft : In full sink Date : September 2005
20 Shaft – Month 13
20 Shaft Project
Investor VisitOctober 2005