Forward looking statements Certain statements in this document - - PowerPoint PPT Presentation

South Deep: A World Class Ore Body In Perspective

TIM ROWLAND TIM ROWLAND Group Competent Person

7 April 2014

Forward looking statements

Certain statements in this document constitute “forward looking statements” within the meaning of Section 27A of the US Securities Act of 1933 and Section 21E of the US Securities Exchange Act of 1934. In particular, the forward looking statements in this document include among others those relating to the Damang Exploration Target p g g g g p g Statement; the Far Southeast Exploration Target Statement; commodity prices; demand for gold and other metals and minerals; interest rate expectations; exploration and production costs; levels of expected production; Gold Fields’ growth pipeline; levels and expected benefits of current and planned capital expenditures; future reserve, resource and other mineralisation levels; and the extent of cost efficiencies and savings to be achieved. Such forward looking statements involve known and unknown risks, uncertainties and other important factors that could cause the actual results, performance or achievements of the company to be materially different from the future results, performance or achievements expressed or implied by such forward looking statements. Such risks, uncertainties and other important factors include among others: economic business and political conditions in South Africa Ghana Australia Peru and elsewhere; important factors include among others: economic, business and political conditions in South Africa, Ghana, Australia, Peru and elsewhere; the ability to achieve anticipated efficiencies and other cost savings in connection with past and future acquisitions, exploration and development activities; decreases in the market price of gold and/or copper; hazards associated with underground and surface gold mining; labour disruptions; availability terms and deployment of capital or credit; changes in government regulations, particularly taxation and environmental regulations; and new legislation affecting mining and mineral rights; changes in exchange rates; currency devaluations; the availability and cost of raw and finished materials; the cost of energy and water; inflation and other macro-economic factors, industrial action, temporary stoppages of mines for safety and unplanned maintenance reasons; and the impact of the AIDS and other occupational health risks experienced by Gold Fields’ employees health risks experienced by Gold Fields employees. These forward looking statements speak only as of the date of this document. Gold Fields undertakes no obligation to update publicly or release any revisions to these forward looking statements to reflect events or circumstances after the date of this document or to reflect the

• ccurrence of unanticipated events.

2

• ccurrence of unanticipated events.

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Agenda

Agenda

• Regional and Local Geology
• Regional and Local Geology
• Geological Modelling Inputs

3D Seismic Survey

• 3D Seismic Survey
• Surface Drilling Programme

Grade Control and Mine Exploration Drilling

• Grade Control and Mine Exploration Drilling
• Geological Modelling Procedures

Mineral Reso rce Estimation

• Mineral Resource Estimation
• Mine Design and Planning

Mi l R d Mi l R

• Mineral Resource and Mineral Reserve
• Resource to Reserve Reconciliation

S

3

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

• Summary

Regional and Local Geology

Regional and Local Geology

Depositional Environment Depositional Environment

Far West Rand Goldfield

West Rand Cons. Doornkop Cooke Section Blyvooruitzicht Elandsrand

West Wits Line Goldfield

Cooke Section Ezulwini SOUTH DEEP Kloof f

Central Rand

Driefontein Mponeng

Goldfield

South Deep

5

A Unique Ore Body In An Area With A 60+ Year Production History

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Local Geology

Cross Section Of Ore Body (Linked To Mining Method) Cross Section Of Ore Body (Linked To Mining Method)

240m 240m 240m 240m Subcrop EAST

4-West (4W)

WEST

3-West (3W) 2-West (2W) 1-West (1W)

C1 C2 C3 C4

2m VCR

VCR

Base of Ventersdorp lava VCR

MBT MBB MIQ MIT

T d f i 120m Vertical

MIB MAD MAC ECT ECMQ ECMC ECBQ ED

Targeted reef units

ECBA

Target package: 2m 1.5–35m 40‐70m 20‐60m 20‐30m

ECBQ ECB ECBAQ

Reserve Tonnes Reserve Grade 1,325Kt 9.45g/t 48,988Kt 5.1g/t 16 Reef Units 68,895Kt 5.5g/t 80,379Kt 5.3g/t 24,823Kt 4.9g/t 6

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

LoM Tonnage Make‐up: 18% of LoM tonnes 49% of LoM tonnes 22% of LoM tonnes 11% of LoM tonnes

Mining Method: Horizontal destress; long‐hole stoping / drifts and benches

Ore Body Dictates Mining Method

Reserve Designs In Section: Corridor 4 Reserve Designs In Section: Corridor 4

Bench Bench Drift Section view without

7

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

C1 C2 C3 C4

Section view without resource model

Ore Body Dictates Mining Method

Reserve Designs In Section: Corridor 3 Reserve Designs In Section: Corridor 3

Section view without resource model

8

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

C1 C2 C3 C4

resource model

Ore Body Dictates Mining Method

Reserve Designs In Section: Corridor 2 Reserve Designs In Section: Corridor 2

Section view without resource model

9

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

C1 C2 C3 C4

Ore Body Dictates Mining Method

Reserve Designs In Section: Corridor 1 Reserve Designs In Section: Corridor 1

Section view without resource model

10

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

C1 C2 C3 C4

resource model

Geological Modelling Inputs

Geological Modelling Inputs

De-risking The Ore Body De risking The Ore Body

3D Seismic Survey

(2003)

Surface drilling

(2007-2013) (49,536m)

LIB Drilling

(Long Inclined Boreholes)

(13,023m)

Grade Control Drilling

( ) ~20m resolution

Covers the whole lease area south of the wrench

( , ) 600m x 600m grid

Used for facies boundaries structural

(13,023m) 300m x 300m grid

Used for structural

50m x 50m grid

Used for facies determination structural area south of the wrench

• fault. Used to confirm the

base of lava position as well as major structures. boundaries, structural definition, stratigraphic modelling, assaying and resource estimation. Used for structural definition, stratigraphic modelling, assaying and grade indication. determination, structural definition, stratigraphic modelling, assaying and resource estimation.

Cumulatively covers 78% of the next 4 years of

0 – 2 Years Ahead of Current Workings. 2 – 10 Years Ahead of Current Workings. 10 - 70 Years Ahead of Current Workings. 10 - 70 Years Ahead of Current Workings.

next 4 years of planning

12

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Good Reconciliation Between Resource Model And Mining

Geological Modelling Inputs

3D Seismic Survey

• Raw 3D Seismic data from all available data

sets has been combined and reprocessed to produce a single consolidated seismic image of

3D Seismic Survey

the subsurface strata

• The

consolidated seismic volume extends 40km East – West, 16km North –South and reaches depths up to 7km below surface

• The accuracy of the seismic data has been

confirmed by drilling results with the majority of reef intersections being within 20m of the modelled depth

Base of Ventersdorp lava Base of Lava as per 3D seismic survey Intersected @ ‐3081m below surface 13 South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Macro Geological Structure Confirmed

Geological Modelling Inputs

Surface Exploration Drilling

• Drilling completed by GFI in 2013

(6 Year Project)

Surface Exploration Drilling

• The

focus was

• n

improving the confidence in the resource estimate south of the Wrench fault A hi d id f i t l 600

Destress & Massive Mine plan to C2020

• Achieved a grid of approximately 600m x

600m

• A total of 49,536m were drilled during the

project project

• The

project comprising 9 boreholes added 72 of 84 planned intersections resulting in 11,635 additional samples

50m x 50m grid drilling 300m x 300m grid drilling 600m x 600m grid drilling

g p south of wrench (SoW)

14

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Geological Modelling Inputs

Surface Drilling

• Borehole depths varied between 2 400m and

Surface Drilling

Surface

Base of Rooihoogte formation at 500mbc

Pretoria Group

• Borehole depths varied between 2,400m and

3,400m below surface

• Up to 12 intersections per borehole,

dependant on ground conditions and drill string integrity

Base of Rooihoogte formation at 500mbc

Chuniespoort Group

string integrity

• 3 clusters of 4 intersections each
• Short deflections intersected reef within a 5m

radius

• Long deflections are 20m to 30m from the

Base of Black Reef Fm. at 1800mbc

• Long deflections are 20m to 30m from the
• riginal intersection

Long deflection

Klipriviersberg Group

VCR at 3000mbc

Short deflections

SD6 SD7 SD8 Original SD1 SD2 SD3 SD4 SD5 Base of EC’s at 3200mbc

Upper Elsburg’s

LD1 LD2 SD9

15

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Intersection

Geological Modelling Inputs

Surface Borehole Intersections and Sampling – Corridor 4 (E.g. Hole DP 25)

Sample sizes vary

Su ace

• e o e

te sect o s a d Sa p g Co do ( g

• e

5)

Reef # of Samples Channel Width (cm) Grade (g/t)

VCR 3 63 3.4 between 2cm and 60cm depending on the reef contacts. N mber of nits ar 10m MBT 35 8.48 10.0 MBB 12 305 1.4 MIQ 5 87 1 8 Number of units vary depending on proximity to the sub crop and on- lapping relationships within the wedge MIQ 5 87 1.8 MIT 7 174 15.7 MAD 6 110 0.5 MAC 6 137 0 7 shaped ore body . MAC 6 137 0.7 ED 13 349 0.4 ECT 13 322 15.9 ECMQ 3 95 0.2 ECMC 6 175 8.4 ECBQ 9 289 0.1 ECB 12 322 4.0 ECBAQ 1 34 0.1 ECBA 4 106 3.75

High sampling data volume and granularity per borehole

16

Geological Modelling Inputs

Surface Borehole Intersections and Sampling – Corridor 3 (E.g. Hole DP 7) Su ace

• e o e

te sect o s a d Sa p g Co do 3 ( g

• e

)

10m

Reef # of Samples Channel Width (cm) Grade (g/t)

VCR 5 108 30.9 Sample sizes vary b t 2 d VCR 5 108 30.9 MBT 31 672 7.9 MBB 29 697 3.6 MIT 12 274 1 0 between 2cm and 60cm depending on the reef contacts. Number of units vary MIT 12 274 1.0 MIB 33 791 4.4 MAD 31 810 0.2 MAC 28 665 10 7 Number of units vary depending on proximity to the sub crop and on- lapping relationships within the wedge h d b d MAC 28 665 10.7 ED 8 190 1.1 DYKE 22 538 1.1 shaped ore body . ECMC 24 605 8.4 ECBQ 32 776 3.3 ECB 18 427 1.0 ECBAQ 24 971 3.0 ECBA 19 424 2.3

High sampling data volume and granularity per borehole

17

Geological Modelling Inputs

Surface Borehole Intersections and Sampling – Corridor 2 (E.g. Hole DP24 SD3) Su ace

• e o e

te sect o s a d Sa p g Co do ( g

• e

S 3)

10m

Reef # of Samples Channel Width (cm) Grade (g/t)

MBT 3 104 14.5 Sample sizes vary b t 2 d MBB 25 789 9.5 MIQ 14 527 0.7 MIT 5 187 3.4 between 2cm and 60cm depending on the reef contacts. Number of units vary MIT 5 187 3.4 MIB 10 294 8.2 MAC 2 26 1.2 ED 8 452 1 6 Number of units vary depending on proximity to the sub crop and on- lapping relationships within the wedge h d b d ED 8 452 1.6 ECT 9 314 6.8 ECMQ 4 152 0.2 ECMC 14 450 3 0 shaped ore body . ECMC 14 450 3.0 ECBQ 5 202 0.9 ECB 8 264 1.1 ECBAQ 2 65 0.8 ECBA 16 449 1.8

High sampling data volume and granularity per borehole

18

Geological Modelling Inputs

Surface Intersections and Sampling – Corridor 1 (E.g. Hole K1) Su ace te sect o s a d Sa p g Co do ( g

• e

)

10m

Reef # of Samples Channel Width (cm) Grade (g/t)

VCR 7 199 4.4 Sample sizes vary b t 2 d MBT 15 411 3.7 MBB 11 321 4.3 MIQ 6 170 5.3 between 2cm and 60cm depending on the reef contacts. Number of units vary Q MIT 19 523 5.7 MIB 74 1935 3.1 MAD 27 750 3.4 Number of units vary depending on proximity to the sub crop and on- lapping relationships within the wedge h d b d MAC 30 750 0.2 ED 47 1187 0.7 ECT 9 189 0.9 shaped ore body . ECT 9 189 0.9 ECMQ 5 97 0.4 ECMC 4 74 0.2 ECBQ 29 755 0.2 ECBQ 29 755 0.2 ECB 6 111 0.1 ECBAQ 42 1185 2.1 ECBA 49 1253 3 5

High sampling data volume and granularity per borehole

19

ECBA 49 1253 3.5

Geological Modelling Inputs

Indicative Results

• Slides that follow show summarised results for 4 of the 16 Upper Elsburg units at

South Deep (MBB MIT ECT and ECMC); (Approximately 70% of total Reserve) Indicative Results South Deep (MBB, MIT, ECT and ECMC); (Approximately 70% of total Reserve).

• The grade and channel width data are provided as simple mathematical averages of

g p p g the individual deflection values.

• In this form, the raw data cannot be used directly for estimation purposes and the

application of relevant geostatistical techniques and kriging constrained within i l d fi d l i l d d l i ti l rigorously defined geological and resource models is essential.

20

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Bore Hole Data “Raw” Until Processed Within Array of 16 Discrete Resource Models

Geological Modelling Inputs

Surface Drilling – MBB Reef Su ace g ee

Borehole Channel Width (cm) Grade (g/t) MD44 463 13.7 MD45 555 9 6 MD45 555 9.6 DP12 293 12.9 DP19 145 15.8 DP21 43 27.6 DP25 282 5.7 DP7 456 3.9 KDP2 402 7.9 KMF1 657 6 1 KMF1 657 6.1 DP20 544 5.2 DP24 614 10.4 KMF3 558 2.7

Current Holes

KMF4 309 3.3 K1 327 3.7 MD22 526 22.1 KMF8 1863 1 0

Current Holes Historic Holes

KMF8 1863 1.0 KMF2 313 1.2 KMF5 1284 1.8 KMF7 376 1.2

21

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Geological Modelling Inputs

Surface Drilling – MIT Reef Su ace g ee

Borehole Channel Width (cm) Grade (g/t) DP12 132 0 9 DP12 132 0.9 DP7 309 2.4 MD44 725 9.1 MD45 1030 9.2 DP25 208 7.5 DP24 194 2.1 KMF3 1513 4.3 KMF4 1687 3 2 KMF4 1687 3.2 K1 532 5.2 KDP2 440 13.5 KMF5 1256 2.6 KMF7 1100 2.5 KMF8 527 1.1 KMF1 1288 1.8 KMF2 668 0 7 KMF2 668 0.7 MD15 252 0.5

Page 22

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Geological Modelling Inputs

Surface Drilling – ECT Reef Su ace g C ee

Borehole Channel Width (cm) Grade (g/t) DP12 575 6.8 DP13 164 7 7 DP13 164 7.7 DP7 760 6.7 MD44 425 4.2 MD45 492 4.9 DP19 551 6.2 DP20 469 3.2 DP25 405 13.1 K1 192 0 7 K1 192 0.7 KMF3 584 2.0 DP24 195 7.3 KMF8 359 2.4 KMF2 672 0.7 KMF4 991 1.2 DP21 395 2.4 KMF5 461 2 3 KMF5 461 2.3 KMF7 487 1.5 KDP2 392 1.0 KMF1 390 0.6

23

MD15 347 0.2

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Geological Modelling Inputs

Surface Drilling – ECMC Reef Su ace g C C ee

Borehole Channel Width (cm) Grade (g/t) DP12 99 0.7 MD44 581 4.9 DP25 195 13.6 DP7 679 5.7 MD45 437 8 7 MD45 437 8.7 DP20 148 3.1 DP21 188 3.8 DP22 301 12.6 KMF8 863 1.7 KDP2 145 1.4 KMF1 300 0.2 KMF2 605 1 2 KMF2 605 1.2 KMF3 575 0.7 KMF4 650 1.0 K1 75 0.2 MD15 161 0.5 DP24 318 2.8 KMF5 864 0.3 KMF7 221 0 5

24

KMF7 221 0.5

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Geological Modelling Inputs

LIB Drilling

• The mine has supported an aggressive underground drilling program

i id 2009 t dd th hi t i ll l b h l d t d it

g

since mid-2009 to address the historically low borehole data density which supported the earlier geological and resource models.

• Long Inclined Boreholes (LIB’s) are drilled ahead of the current workings
• n an approximate 300m grid. All LIB drilling has been done post Gold

Fields acquisition Fields acquisition.

• 10 LIB’s, totalling 7,213m have been drilled testing the Upper Elsburgs to

g g pp g the south of current workings. Th VCR t t i di t l dj t ( t) t t El b i i

• The VCR target immediately adjacent (west) to current Elsburg mining

has been explored with an additional 9 LIB holes, totalling 5,810m.

25

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Geological Modelling Inputs

North of Wrench LIB Drilling Campaign

• t
• e c

g Ca pa g

• 9 VCR LIB’s drilled in

9 VCR LIB s drilled in 2012/2013.

• 10 Upper Elsburgs LIB’s

completed; 8 more to be drilled in next 2 years drilled in next 2 years.

• Grade control drilling is
• n plan in Corridors

1, 2, 3 & 4.

• 87-1W & 87-2W ongoing

87 1W & 87 2W ongoing.

200m

26

OPS Plan

Advance Drilling Designed To Pin Structure And Stratigraphy- 10 years ahead of mining

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Geological Modelling Inputs

Cross Section of a LIB Hole Looking East C oss Sect o

• a
• e
• g

ast

1 300 LIB h l

Wrench fault

North South

1,300m LIB hole drilled from 95L intersecting the 137m upthrow Wrench F lt d fi i

Wrench Fault 137m

South North

137m Wrench fault

Fault and confirming position and throw of the Upper Elsburg reefs.

137m

95L

95L Lava 350 i ht l t l 350m right lateral movement 100m 100m

27

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Geological Modelling Inputs

Grade Control Drilling

• A planned drilling grid is targeted comprising in-stope and destress

d illi d d illi f f t ll i f t t t 70 h d f th

G ade Co t o g

drilling and drilling from footwall infrastructure up to 70m ahead of the current destress ‘leading edge’

• In-stope and footwall drilling is ongoing and the average drill density has

been reduced from an 80m grid to a 50m grid

• Drilling from the destress stopes will be into both the hangingwall and

footwall

28

Grade Control Drilling Designed To Confirm Short To Medium Term Resource Model

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Grade Control Drilling – 7 year plan (provides high confidence)

Geological Modelling Inputs

G ade Co t o g yea p a (p o des g co de ce)

• Drill hole density has

been reduced from 80m to 50m in the last 5 years

200m

5 years

• Virgin ground drilling done

ahead of mining, covers a range of 50-70 metres

Outline

• f Area already

destressed

• 62% of 7 yr plan is within

the current destress area.

105L 100L Planned GC drill grid 7yr OPS Plan Outline

Drilled Holes Drilled from footwall Drilled from destress

4 3 2 1

Page 29

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Typical Grade Control Drill Fan from Main Access Drive in the Destress Cut

Geological Modelling Inputs

yp ca G ade Co t o a

• a

ccess e t e est ess Cut

Side view

• Grade control drilling fan drilled from the

Grade control drilling fan drilled from the two Main Access Development limits per destress cut

• Average length of hole = 85m

Page 30 Rotated view

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Geological Modelling Procedures Geological Modelling Procedures

South Deep Gold Mine p

Geological Modelling Procedures

Improvement in Accuracy and Confidence in Modelling p o e e t ccu acy a d Co de ce

• de

g

• 4 Units
• Shore Line

Composite 7 U it

2005

• Gold Fields

acquires South Deep Gold Mine

• 16 Units

Si l S b

2008

• 16 Units
• Re‐aligned

Subcrop Positions

• LIB Drilling

Campaign Started I fill D illi (GC)

• 16 Units

l ll

2010

• 16 Units
• Kriging of Channel

Widths & Dynamic Modelling

2000

• 7 Units
• Singular Subcrop

Point

2006

• Singular Subcrop

Point

• Surface Drilling

Campaign Started

• Infill Drilling (GC)

Campaign Started

2009

• Palinspastically

Reconstructed Depositional Model

2013

Detailed reserve designs for Current Future mine north Studies in The entire Mineral Highly detailed g Mine only. Future mine estimated using the Bayesian methodology

• f the wrench fault

designed in detail for the first time Studies in mechanising the destress commence Reserve is designed for the first time in the LoM Reserve updated with new models Reserve updated with new models g y designs for 7 years included as part of the new LOM Page 32

Evolution of a fit for purpose Geological Modelling process

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Geological Modelling Procedures

Facies and Domains

• Geological facies are areas of the ore body that

have been deposited under similar conditions and correlate with gold grade distribution ac es a d

• a

s correlate with gold grade distribution

• Domains are areas within a facies zone in which a

consistent grade distribution occurs g

• Discrete facies and domains are constructed for

each of the 16 units

• Facies and domains therefore provide a geological

framework for geostatistical modelling

• Channel width models of the different units are

constructed to enable the modelling of individual f l d t reef volumes and tonnages

Page 33

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Mineral Resource Estimation Mineral Resource Estimation

South Deep Gold Mine p

Mineral Resource Estimation

Current Process Flow for Model Updates Cu e t

• cess
• de Updates
• Process all samples through the QA/QC programme.

Sampling

• Convert all geological data to a dynamic modelling environment and update the geological facies and domain models

Geological Models

• Convert all geological data to a dynamic modelling environment and update the geological, facies and domain models.

Resource Estimation

• Update the geostatistical models and estimate the mining areas.

LoM Planning

• Update the LoM plan with respect to the updated Mineral Resource Models.

Review

• Internal and external review on data, geological and resource models, plans and design.

Page 35

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Mineral Resource Estimation

Resource Evaluation and SAMREC Classification

• Geostatistical models are generated for each of the 16 units

Estimation is constrained by geostatistical domains esou ce a uat o a d S C C ass cat o

• Estimation is constrained by geostatistical domains
• Ordinary and Simple Kriging techniques are utilised in the estimation of grade
• Facies modelling informs geological continuity from Current mine to Future mine

96% f th t i M d R i d t d ti t 2 7 M ld

• 96% of the current mine Measured Resource is destressed, equating to 2.7 Moz gold

Subcrop Twin Shaft South Shaft

7 Year Plan (Destress and Massive Mining) Measured Resource is 96% Destressed

Page 36

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Planning vs Measured Boundaries

Dec 2013 Measured Boundary & Dec 2014 Confidence Boundary ec 0 3 easu ed

• u da y &

ec Co de ce

• u da y

Dec 2013 Measured Boundary Planning y Total Inside Outside C2014 Tonnage (kt) 1 969 148 2 117 C2014 % 93% 7% 100% C2015 Tonnage (kt) 2 183 385 2 568 % 85% 15% 100% % 85% 15% 100% C2016 Tonnage (kt) 2 245 709 2 955 % 76% 24% 100% C2017 Tonnage (kt) 2 273 1 224 3 497 % 65% 35% 100%

Table illustrates annual specific coverage, if calculated cumulatively, year-on -year the

• verall coverage is at 78% of planned mining (destress and massive) up to and

including C2017 falls within the current Measured Resource boundary

Page 37

On a rolling basis, year 1 of the plan will be >90% classified as Proved Reserve (i.e. destressed Measured Resource)

g y

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Mineral Resource Estimation

Grade Reconciliation – Resource Model vs Grade Control Model (MBB unit - Corridor 4) ( )

Reef Resource Model Grade (2011) Grade Control Drilling Grade (2012) Grade Control Model Grade (2013) Percentage Change MBB Reef (g/t) 17.11 16.77* 16.90 ‐1.2% MBB Reef (g/t) 17.11 16.77 16.90 1.2%

* Arithmetic mean calculated from actual raw assay results. 50 m 50 m

50m 50m

Page 38

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Mine Design and Planning Mine Design and Planning

South Deep Gold Mine p

Mine Design and Planning

Overview

• Mining method in use was developed at South Deep, specific to the ore body. Scheduling

assumptions are based on actual achieved efficiencies

O e e

• Destress mining is required to enable the mining of large excavations in a destressed

environment and will be applied in all future mine stoping areas If the targeted reserve is 12m or less in height a drift 6 0m (w) x 5 5m (h) with a bench of 6 5m

• If the targeted reserve is 12m or less in height a drift, 6.0m (w) x 5.5m (h) with a bench of 6.5m

(h) or less will be applied. Targets larger than this will be extracted with long-hole stoping

• The initial 7-year design is completed in high detail (long-hole stopes are segmented into 7.5m

ti (5 i ) ll i di id l t d ift d b h i di id ll d i d) portions (5 rings), all individual stopes, accesses, drifts and benches are individually designed).

• For mining beyond 7 years the designs are less detailed but retain the requisite definition to

model production profiles with confidence. Individual stopes are replaced with stope designs that p p p p p g include 5 to 10 individual stopes. The designs are depleted at the same rate as the individual stopes

• LoM infrastructure designs include all stoping access ramps conveyer haulages intake and
• LoM infrastructure designs include all stoping access ramps, conveyer haulages, intake and

return haulages, bulk air cooler excavations, workshops, ore passes, silo’s, vent-holes, intake and rock-handling cross-cuts.

Page 40

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Mine design and mining method is customised to fit South Deep’s requirements

Mining sequence – LoM ends in 2087

LOM Sequence

g q

Depth – 2400m below surface Old Mine Current Mine N W d l t d i 2051 93 Level 95 Level NoW

• LOM 2014 to 2087 (38,224 koz)

NoW depleted in 2051 95 Level 105 Level 110 Level S W W SoW E Wrench Fault SoW W 110 L l 110 Level Depth – 3300m below surface

Page 41

Mineral Reserve is based on a full LoM design

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Mineral Resource and Mineral Reserve Mineral Resource and Mineral Reserve

South Deep Gold Mine p

Mineral Resource

As at December 2013 s at ece be 0 3

Mineral Resource classification Measured Indicated Inferred Total Mineral Resource Tonnes Grade Gold Tonnes Grade Gold Tonnes Grade Gold Tonnes Grade Gold per mining area (Mt) (g/t) (koz) (Mt) (g/t) (koz) (Mt) (g/t) (koz) (Mt) (g/t) (koz) Underground Current Mine 45.0 7.4 12,720 13.7 6.3 2,770

• 58.7

7.2 13,489 NOW 7.3 7.9 1,840 57.4 7.6 13,964

• 64.7

7.6 15,804 SOW

• 163.4

7.1 37,188 16.5 6.5 3,462 179.7 7.0 40,649 VCR 0.5 12.4 207 8.0 10.7 2,736 10.2 9.0 2,938 18.6 9.8 5,881 Total underground 52.8 7.5 12,767 242.4 7.3 56,658 26.6 7.5 6,399 321.8 7.3 75,824

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South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Mineral Resource

As at December 2013 s at ece be 0 3

120 000

Top 10 Gold Deposits ‐ Resource Size

100 000 60 000 80 000 source (KOz) 20 000 40 000 Res

Page 44

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

World’s Second Largest Gold Mineral Resource

Mineral Reserve

As at December 2013 s at ece be 0 3

73 Year mine life (2014‐2087)

Mineral Reserve classification per mining area Proved Probable Total Mineral Reserve Tonnes (Mt) Grade (g/t) Gold (koz) Tonnes (Mt) Grade (g/t) Gold (koz) Tonnes (Mt) Grade (g/t) Gold (koz) Underground Current Mine 12.0 5.8 2,245

• 12.0

5.8 2,245 NOW 3.7 5.8 682 57.3 5.8 10,603 61.0 5.8 11,286 SOW

• 151.5

5.1 24,693 151.5 5.1 24,693 Total underground 15.7 5.8 2,927 208.8 5.3 35,296 224.4 5.3 38,224

In‐stope waste ramping included in the 224.4Kt / 5.3g/t

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South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Resource to Reserve Reconciliation

Mineral Reserve Time Line

R O d G d

e a ese e e e

5 80 6.00 6.20 6.40 40 50 Millions

Reserve Ounces and Grades

5.00 5.20 5.40 5.60 5.80 10 20 30 VCR 3,793,615 3,426,755 445,037 415,160 402,876 4.80 Jun 2006 Jun 2009 Dec 2010 Dec 2012 Dec 2013 Elsburgs VCR OldMine Head Grade OldMine 1,044,466 1,044,474 Elsburgs 25,859,092 25,014,732 34,087,489 38,696,930 37,820,670 Total 30,697,173 29,485,961 34,532,525 39,112,090 38,223,546 Grade 6.11 6.14 5.58 5.45 5.30

3.8Moz of VCR and 1.6Moz of VCR designed and 1.0Moz

• f Old Mine included.

Excludes VCR South of the Wrench fault Includes more marginal material from the SoW projects Updated for Dec’13 1.0Moz of Old Mine included Acquisition Reserves Current Mine fully designed with 106 % MCF, remainder still acquisition reserves (includes 1.8Moz VCR) Excludes Old Mine Includes lower grade Uncle Harry’s 108% MCF 100% MCF *PRF reduced from 97.3% to 96.5% In‐section waste dilution applied 98% MCF In‐section waste dilution applied Page 46

*PRF means Plant Recovery Factor, MCF means Mine Call Factor

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Resource to Reserve Reconciliation Resource to Reserve Reconciliation

South Deep Gold Mine p

Resource to Reserve Reconciliation

Ounces Ou ces

80.0

South Deep Mineral Resource Reconciliation

6.4 6.5 2.0 0 6 60.0 70.0 75.8 0.6 19 1 40.0 50.0 ld (Moz) Cut‐off Grade

Resource ‐ Reserve CM 3.2 g/t ‐ 3.8 g/t

• Mining beyond

2087

38.2 19.1 2.9 20.0 30.0 Gol

FM 3.6 g/t ‐ 4.2 g/t

• MCF of 98%
• 87 1BW
• 87 O‐Line

0.0 10.0 Resource Inferred Pay Limit MCF Tail Management Exclusions Extraction/Mining Reserve

• 95 O‐Line
• Ph1 SoW O‐Line
• VCR

Resource Inferred Resources Pay Limit MCF Tail Management Exclusions Extraction/Mining Method Reserve

Page 48

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Resource to Reserve Reconciliation

Grade G ade

9.0

South Deep Mining Grade for the 7 Year

0.8 0.6 7.0 8.0 0.9 0.4 0.8 0.1 0.1 5.0 6.0

grade Cut‐off Grade

Low grade and waste

Low grade VCR not

7.3 5.3

2 0 3.0 4.0

g Cut‐off Grade

Resource ‐Reserve CM 3.2 g/t ‐ 3.8 g/t FM 3.6 g/t ‐ 4.2 g/t g material within stope designs (limited selectivity within longhole stopes) C

• t

reported as reserve Average dilution of 7.3% (mainly backfill MCF of 98% Localised areas not reserved. Not within close

0.0 1.0 2.0

in secondaries) proximity of accesses

CM is Current Mine FM is Future Mine (south of the Wrench fault) Resource (Incl. Inferred) Reserve Paylimits Ramping Internal design dilution Excluding VCR Dilution MCF Residual Declared Reserve ( ) MCF is Mine Call Factor

Page 49

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Summary

Key Points ey

• ts

 Continuous data supplied by sequential, rolling drilling programs  Robust geological modelling with appropriate resolution.  Resource estimation embodies a high level of ore body granularity  Ore body dictates relevant mine design and mining method  Good reconciliation between resource model and mining achieved  Technically assured Resource and Reserve  Technically assured Resource and Reserve

Page 50

South Deep: A World Class Ore Body In Perspective | Tim Rowland, Group Competent Person | 7 April 2014

Thank you Thank you

South Deep Gold Mine p