Kloof-Driefontein Complex (KDC) Technical Short Form Report 31 December 2011

2 Salient features

¨¨ Mineral Resources at 63.8 Moz (excluding Tailing Storage Facility ounces of 3.7 Moz).

¨¨ Mineral Reserves at 13.7 Moz (excluding Tailing Storage Facility ounces of 2.9 Moz).

¨¨ Safe steady state production strategy driving quality volume.

¨¨ Accelerate extraction of higher grade Mineral Reserves to bring value forward.

¨¨ Optimise surface resources extraction strategy.

¨¨ Long-life franchise asset anchoring gold production to 2028 (17 years).

The KDC has a world class ore body with long-life Mineral Resources and Mineral Reserves (17 years) which has produced in excess of 181 Moz from the renowned Witwatersrand Basin, the most prolific gold depository in the world.

Geographic location

KDC West Mining Right

KDC East Mining Right Carletonville Pretoria Johannesburg

Welkom

Kimberley Bloemfontein Durban

KDC East = Kloof G.M. Port Elizabeth KDC West = Driefontein G.M. Cape Town

Gold Fields: KDC Gold Mine – Technical Short Form Report 2011 3 Geographic location IFC 1. Overview

1. Overview Page 1 Gold Fields Limited owns a 100% interest in GFI Mining South Africa (Pty) Limited (GFIMSA), which holds a 100% interest in KDC (Kloof- 2. Key aspects Page 2 Driefontein Complex). The mine is situated between 60 and 80 kilometres west of 3. Operating statistics Page 3 Johannesburg near the towns of Westonaria and Carletonville in the Gauteng Province of Page 4 South Africa. KDC is a large, well-established 4. Geological setting and mineralisation shallow to ultra-deep level gold mine with workings that are accessed through, 12 shaft 5. Mining Page 7 systems (five business units – BU’s) that mine various gold-bearing reefs from open ground 6. Projects Page 9 and pillars that occur at depths between 600 and 3,347 metres below surface. The shaft systems include 10 sub-vertical shafts and two 7. Mineral processing Page 11 tertiary shafts. Ore extracted from the gold bearing reefs is processed at two metallurgical 8. Sustainable development Page 12 plants.

9. Mineral Resources and Mineral Reserves Page 13 The formation of KDC was designed to create an environment of uniformity, alignment and cohesion that will enhance the singular identity 10. Regulatory codes Page 18 that will underpin the new consolidated operation. The overall strategy of the 11. Competent Persons Page 18 amalgamation of the two mines was to improve operational and financial efficiencies in line with Gold Fields’ long-term stated vision, “To be the Page 22 12. Brief history global leader in sustainable gold mining”, which encompasses safety and human capital as well 13. Key technical staff Page 23 as the environmental and social licence to operate.

During the past 12 months KDC produced 1.1 Moz of gold from a combination of underground mining and processing of surface waste rock dump material. KDC employees costed for the period was 26,685 including contractors. The area mined averaged some 62,888 m2 per month, underground ore processed at 400 kt per month and surface material treated 501 kt per month. Total gold production averaged some 2,852 kg per month at an average yield grade of 3.2 g/t. Significant increases in power, consumables and labour costs have limited the benefit of an increased gold price with the effect that pay limits show a slight increase year-on-year.

This Technical Short Form Report reflects the latest Life of Mine plan input parameters, coupled with an updated Mineral Resource and Mineral Reserve statement, as at 31 December 2011. The geological and evaluation models have been updated to reflect the latest available data. These models are coupled with an integrated and holistic mine design and schedule that is based on current performance levels and attempts to take cognisance of the inherent risks associated with deep level mining.

All Mineral Resource and Mineral Reserve figures reported are managed unless otherwise stated and Mineral Resources are inclusive of Mineral Reserves.

Cover image: KDC East 7 Shaft Complex

Note: For abbreviations refer to page 28 and for glossary of terms refer to page 29 – “Mineral

KDC West No 1 Metallurgical Plant No 1 Metallurgical KDC West Resources and Mineral Reserves Overview 2011”.

1 2. Key aspects Night photograph of KDC East 8 Shaft

Independent audit Figures reported in this declaration are as reviewed by independent external consultants as at 31 December 2011 (Optiro Pty Limited). Gold Fields has been informed that the audit identified no material shortcomings in any process by which the KDC Mineral Resources and Mineral Reserves were evaluated Prepared by Gold Fields Limited in compliance with the SAMREC Code (2007 edition) Effective date 31 December 2011 Source of information This Technical Statement is a summary of the detailed internally sourced document entitled December 2011 Kloof Competent Persons report and December 2011 Driefontein Competent Persons Report Personal inspection Personal inspection is conducted by the Competent Persons as listed, who are full-time employees of Gold Fields Limited General location KDC is situated 60 to 80 km west of Johannesburg at latitude 26º 24’ S and longitude 27º 30’ E between Westonaria and Carletonville in the Gauteng Province of South Africa. The site is accessed via the N12 highway between Johannesburg and Potchefstroom with a well developed network of tarred roads that surround the area Licence status and KDC is entitled to mine all declared Mineral Resources and Mineral Reserves and has all the necessary holdings statutory mining rights in place. Kloof Gold Mine (KDC East) and Driefontein Gold Mine (KDC West) have new order mining rights in respect of the mining area totalling 28,648 hectares. GFI Mining South Africa (Proprietary) Limited (GFIMSA) holds a 100% interest in KDC. Gold Fields Limited holds a 100% interest in GFIMSA. The tenor of the mining right at KDC West is 25 years and at KDC East 15 years Operational infrastructure KDC is a large, well-established shallow to ultra deep level gold mine that is accessed from surface through a number of shafts to its lowest working levels some 3,347 m below surface. It comprises twelve producing shaft systems that mine different contributions from open ground and pillars, and five metallurgical plants. Climate No extreme climatic conditions are experienced that may affect mining operations Deposit type Gold mineralisation occurs within laterally extensive quartz pebble conglomerate horizons called reefs, which are developed above unconformable surfaces within a depositional system near the basin margin. KDC exploits three primary reefs namely the Carbon Leader Reef (CL), Ventersdorp Contact Reef (VCR) and Middelvlei Reef (MR) with the CL representing the majority of the current Mineral Reserves in the west of the mining right and the VCR representing the majority of the current Mineral Reserves in the east of the mining right Life of Mine (LoM) It is estimated that the current Mineral Reserves will be depleted in 2028 Environmental/Health KDC systems, procedures, training etc. are at international best practice levels. KDC obtained its & Safety ISO 14001:2004 certification in 2008, and has maintained its certification since then. The mine has full compliance status for the International Cyanide Management Code with certification awarded in September 2009 Reporting codes Gold Fields reports its Mineral Resources and Mineral Reserves in accordance with the South African Code for the Reporting of Exploration Results, Mineral Resources and Mineral Reserves (2007 SAMREC Code), and other relevant international codes such as SEC Industry Guide 7, JORC Code and NI 43-101. The Mineral Resources and Mineral Reserves are underpinned by an appropriate Mineral Resource Management process and protocol to ensure adequate corporate governance in respect of the intent of the Sarbanes-Oxley Act

Gold Fields: KDC Gold Mine – Technical Short Form Report 2011 2 3. Operating statistics

Dec Dec June June June Units 2011 20101 2010 2009 2008 Surface mining Total mined kt 6,017 2,432 5,085 4,001 3,720 SRD material to plant (screened) kt 6,017 2,432 5,085 4,001 3,720 SRD Head grade g/t 0.8 0.7 0.8 0.7 0.8 Underground mining Ore mined kt 3,237 1,898 3,913 4,096 4,678 Mined grade g/t 10.8 11.4 10.8 11.9 12.5 Primary development km 45.0 23.9 46.8 42.9 61.1 Advanced km 7.7 4.0 7.5 7.8 10.7 Primary reef development Value cm.g/t 2,100 2,041 2,028 1,344 1,462 Processing –– Underground tonnes kt 4,814 2,720 5,298 5,535 6,214 –– Surface tonnes kt 6,017 2,432 5,085 4,001 3,720 Total tonnes treated kt 10,831 5,152 10,383 9,536 9,934 –– Mill head grade (underground)2 g/t 6.5 6.8 7.0 8.0 8.5 –– Mill head grade (surface) g/t 0.8 0.7 0.8 0.7 0.8 Total head grade g/t 3.3 3.9 3.9 5.0 5.7 Underground g/t 6.3 6.6 6.8 7.8 8.2 –– Yield Surface rock dumps g/t 0.7 0.7 0.8 0.7 0.9 Combined yield g/t 3.2 3.8 3.8 4.8 5.5 Underground % 97 97 97 97 97 Plant recovery factor Surface rock dumps % 92 92 92 92 92 Gold produced Underground kg 30,105 17,931 35,757 42,974 51,178 Surface rock dumps kg 4,113 1,787 3,943 2,838 3,220 koz 1,100 634 1,277 1,473 1,749 Total gold produced kg 34,218 19,719 39,700 45,812 54,398 Gold sold koz 1,100 634 1,277 1,473 1,749 Financial R/kg 227,210 200,037 192,765 146,184 104,398 Underground R/t 1,424 1,319 1,301 1,135 860 Operating cost R/kg 146,292 124,978 92,739 117,338 85,924 Surface R/t 100 92 72 83 74 R/kg 219,642 190,973 176,819 137,298 98,230 Total cash cost R/t 694 731 676 660 538 US$/oz 946 832 726 474 420 R million 2,300 1,266 2,244 1,993 1,914 Capital expenditure R/kg 67,216 64,192 56,524 43,504 35,187 US$/oz 289 280 232 150 151 R/kg 285,017 257,391 239,305 187,883 138,546 Notional cash expenditure (NCE) US$/oz 1,228 1,121 982 648 593 General Employees (TEC) number 26,685 31,086 32,772 31,778 33,136 Mineral Reserves* Mt 69.2 96.4 116.6 128.4 131.4 Mineral Reserve Head Grade* g/t 6.1 6.5 7.1 7.0 7.3 Mineral Reserves* Moz 13.7 20.2 26.7 28.7 30.8 Expected Life of Mine years 17 30 32 31 33 1 Figures shown represent the six months to 31 December 2010. Rounding off figures presented in this report may result in minor computational discrepancies. Where this occurs it is not deemed significant. 2 The decline in head grade in 2011 is due to an increase in the milling of underground waste. * SRD Mineral Reserves included; TSF Mineral Reserves excluded. Surface rock dump (SRD); Surface tailings facility (TSF).

3 4. Geological setting and mineralisation

KDC is located in the West Wits Line that forms part of the Far West Rand Goldfields situated on the northwestern rim of the geologically unique and renowned Witwatersrand Basin, which is the world’s premier gold region.

The Witwatersrand Basin comprises a 6,000 metre thick sequence called the Witwatersrand Supergroup, which consists of predominantly detrital sedimentary rocks interspersed sporadically with auriferous and uraniferous quartz pebble conglomerates, termed reefs, especially in the upper parts of the succession classified as the Central Group. The mining area is underlain by outliers of Karoo Supergroup shales and sandstones, followed by Pretoria Group sediments and the Chuniespoort Group dolomites. The dolomites overlie the Klipriviersberg Group volcanic rocks, which in turn cap the Ventersdorp Contact Reef and sediments of the Central Rand Group that hosts the other gold-bearing reefs.

The reefs, which are generally less than 2 metres thick, are widely considered to represent extensive fluvial fans. Deposition took place along the interface between a fluvial system that brought the sediments and heavy minerals from Witwatersrand Basin depositional model an elevated source-area and a lacustrine littoral system that reworked the material and redistributed the finer sediments dykes with little or no apparent offset of the stratigraphic units along the shoreline of an intracratonic lake or shallow water and younger, easterly trending sinistral wrench faults, some of inland sea. The gold is mainly of detrital origin, deposited which host dyke material. Several large dykes also contribute syngenetically with the conglomerates and interrelated with to dividing the West Wits Line into a series of water sedimentary features such as unconformities and fluvial compartments. Local bedding plane faulting along the channels. VCR horizon has resulted in the elimination of VCR in some areas as well as the duplication of VCR in other areas. Although the gold generally occurs in native form and is usually associated with pyrite and carbon, most of the gold The vertical separation between the VCR and MR increases has been subsequently modified and remobilised during from north to south, east of the Bank Break (VCR overlies secondary hydrothermalism, giving rise to the most favourite progressively younger strata southwards) and from east to depositional model currently in use, i.e. Modified Palaeoplacer west, west of the Bank Break (VCR overlies progressively Model. The model emphasises a control on the occurrence of younger strata westwards). This is a result of the relative ore minerals by placer-forming mechanisms, while accepting angle of the VCR unconformity surface to the regional strike some modification by metamorphism, is the generally and dip of the underlying Central Rand Group strata. This accepted model for the origin of gold and uranium unconformity feature, in conjunction with the structural effects mineralisation of the Witwatersrand Basin. For several of the Bank Fault (Bank Anticline), results in the elimination of decades now, models using sedimentological principles were the CL and MR in a V-shaped area closing to the south just very successfully used to predict gold distribution on mine west of the Bank Fault (D5 Shaft area). properties.

Local geology KDC East 3 Shaft South Deep Twin Shaft The KDC is bound by the West Rand Fault to the east KDC East KDC East Main Shaft Pilgrim 4 Shaft separating it from the South Deep Gold Mine, and is bisected KDC East by the Bank Fault, a large west dipping fault with a down- 7 Shaft throw to the west resulting in the Bank Break phenomenon. The structure east of the Bank Break (KDC-East) is dominated by the West Rand and Panvlakte Horst blocks, which are superimposed over broad folding associated with the southeast plunging West Rand Syncline. The northern limb of the syncline dips in a south-southwesterly direction and the southern limb in an east-southeasterly direction.

In the area east of the Bank Break (between the West Rand and Bank Faults), the VCR and the underlying Central Rand

West Rand fault Group strata of the Witwatersrand Supergroup have a general north-northeast strike and dip to the east-southeast at between 25° and 45°. Major geological structures within the domain comprise normal faults sub-parallel to the West VCR Digital Rand Fault. Sympathetic to it are north-northeast trending Terrain Model (DTM) Seismic section across West Rand Fault (DTM colours change West Seismic section across to depth) according

Gold Fields: KDC Gold Mine – Technical Short Form Report 2011 4 West of the Bank Break the VCR and the underlying Central The VCR represents the final phase of sedimentation prior to Rand Group strata have a general east-west strike and dip to the extrusion of the lavas of the Klipriviersberg Group and the south at between 20° and 25° (VCR 22° to the south- unconformably and disconformably overlies the underlying southeast). Major geological structures within the domain sediments of the Witwatersrand Supergroup. The VCR is comprise normal faults sub-parallel to the Bank Fault. dated at approximately 2.7 billion years and is an auriferous Sympathetic to it are north-northeast trending dykes with little palaeoplacer consisting of several complex, inter-calated or no apparent offset of the stratigraphic units and younger, gravel types (facies). Lavas of the Klipriviersberg Group lie east-northeasterly trending dextral wrench faults, some of conformably on the gravels (conglomerates) and thus which host dyke material. The subcrop line of the VCR preserved unique characteristics of the sediments and the against the Black Reef and overlying dolomites trends geomorphology. The sediments have been subdivided into west-southwest and consequently restricts the area to the five major facies types, which consist of a complex series of west that is underlain by VCR. intercalated oligomictic and polymictic conglomerates of varying thicknesses and differing average gold grades. KDC exploits three primary reefs, namely the Ventersdorp Contact Reef (VCR) located at the top of the Central Rand For the 31 December 2011 Mineral Resource and Mineral Group, the Carbon Leader Reef (CL) near the base of the Reserve estimate, minor corrective changes were made to the Group and the Middelvlei Reef (MR), which stratigraphically VCR facies model based on the latest geological information. occurs some 50 to 75 metres above the CL. Various secondary reefs are also being exploited, but only on a Middelvlei Reef limited scale due to localised payability. These reefs include the Kloof and Libanon Reefs of the Kimberley Conglomerate The MR is correlated with the South Reef of the Central Rand Formation and the Erosion Channel Reef of the Main Goldfields. It occurs some 55 metres above the CL over most Conglomerate Formation. This Erosion Channel that of the mining right area, except where eliminated by the eliminates the CL in a broad west-northwest to east- VCR erosion surface, and is made up of a number of Witwatersrand Basin depositional model southeast zone, sometimes contains a conglomerate which well-packed, large quartz pebble conglomerate bands. In is mined as a secondary reef. For reporting purposes, the some areas the MR assemblage is as much as 6 metres thick Erosion Channel Reef is grouped with the CL and is not with well developed top, middle and bottom bands, reported separately. separated from each other by quartzite partings.

In the area east of the Bank Break, the majority of mining The MR is particularly well developed on the eastern side of takes place on the VCR, which constitutes 93% of the the Bank Break (KDC-East) where it is considered as a Mineral Reserve, the MR 4%, and the Kloof Reefs the principal reef. West of the Bank Break the MR is less well remaining 3%. West of the Bank Break the CL is generally a developed with only limited areas of potential economic high grade reef and represents approximately 75% of the viability, which are restricted to the proximal facies of a current Mineral Reserve, the VCR 23% with the remaining 2% braided-stream depositional environment. comprising mainly the MR. Surface rock dump material is also processed. The MR in general has well defined “pay shoots” which are limited in extent and therefore difficult to project or explore. Ventersdorp Contact Reef The bottom band is most exclusively the economic horizon of In addition to the many economically viable reefs found in the the MR, ranging from a single pebble lag to a maximum Central Rand group, the VCR, found at the base of the thickness of 80 centimetres. The current MR model is based Ventersdorp Supergroup, constitutes a further significant on sedimentology and value/channel width trends to highlight principal economic reef practically unique to this goldfield. prospective areas and to constrain the estimation process. The Ventersdorp Supergroup lithologies truncate the Central For the 31 December 2011 Mineral Resource estimate, Rand Group sediments, classifying the auriferous VCR as changes were made to the facies model at various shaft part of the Venterspost Formation. domains based on the latest geological information.

Carbon Leader Reef The CL is the principal economic reef on the western side of 4 Shaft Main Shaft the Bank Break (KDC-West) and correlates with the Main Reef of the Central Rand Goldfields and varies in thickness Surface from a mere carbon streak to a solid seam of carbon up to 7 mm thick, to a multiple band medium pebble conglomerate, on average some 200 cm thick. Although the

Slope Reef CL is present east of the Bank Break, it is found as distal equivalents of the former and grades into scattered grits with West Rand Fault less gold mineralisation, generally of uneconomic concentrations.

The CL has a low angle of unconformity. The footwall consists of a package of conglomerates, usually referred to as the “Footwall bands of the CL” (also the “North Leader Zone”) and this zone is characterised by lenses of

VCR FACIES: conglomerates, separated by yellowish grey argillaceous Bimodal Terrace Apple Green Terrace Sandy 2 quartzite. The basal conglomerate band of this zone is called Milky Cobble Terrace Sandy 1 the North Leader (NL). Seismic section across West Rand Fault (DTM colours change West Seismic section across to depth) according Schematic diagram of the VCR palaeomorphological model

5 The hangingwall of the CL consists of a siliceous grey quartzite overlain by the Green Bar, a chloritoid shale occurring over most of the Witwatersrand Basin.

Four facies of CL are present; a carbon seam and a single band conglomeratic facies in the west, a multiple band facies in the central parts and a single band conglomeratic facies in the east.

The multiple band CL facies is defined sedimentologically as a reef containing more than one conglomerate band separated by internal quartzite bands. The internal quartzite is similar in appearance to that forming the hangingwall of the CL. The channel width of the facies varies from as little as 10 cm to more than 420 cm and the number of conglomerates is highly variable because of their lenticular 2B conglomerate of multiple band CL facies nature (see schematic illustration below).

The gold grade of the multiple band facies is generally lower are channelised and due to their localised payability, than that of the single band facies but, because of its channel exploration is difficult and often neglected due to the sporadic width, their gold accumulation (cm.g/t) is often similar. nature of economic mineralisation. However, when in reach of Carbon seams are also known to occur in these reefs exploration platforms from current underground development, accompanied by an increase in gold content. exploration programmes are initiated to test for economic exploitable areas or zones. Secondary Reefs The Kloof, Libanon and Erosion Channel Reefs are a relatively minor component of the KDC Mineral Resource. The reefs

West East Multiple band CL facies variation

D8 D7 D1 D2 D3 D4 KDC West D10 D6 D9 D5 Mining Right

Pretoria Group

S/O VCR Black Reef

Malmani Dolomite 22 Level S/O CL and MR Central Rand Group

42 Level Ventersdorp Lava

West Rand Group

VCR

MR S/O = Sub-crop CL Schematic 3D section through KDC West Schematic 3D section through

Gold Fields: KDC Gold Mine – Technical Short Form Report 2011 6 Exploration and drilling Exploration drilling was generally executed from surface on existing sites and at undeveloped sites. Once a potential area irregular grids of 500 to 2,000 metres dependent on historical has been discovered, exploration is extended and intensified exploration strategy, depth of the mineralised horizons and in order to enable clearer definition of the ore body and the geological uncertainty. Once underground access is available, potential portions to be mined. Geological techniques are infill grade control drilling is undertaken from access haulages constantly refined to improve the economic viability of and cross cuts to provide a 30 to 100 metre grid depending prospecting and mining activities. on geological requirements from structural, safety and evaluation perspectives. A comprehensive borehole management QA/QC programme is embedded at KDC and is intended to monitor sampling A continuous Mineral Reserve definition drilling programme is and laboratory performance in an effort to control (minimise) in place and is aligned to facilitate better planning and the total possible error in the sampling-splitting-analysis optimisation, with appropriate lead time, to ensure robust sequence. This is achieved by monitoring and controlling four geological and evaluation models, that will underpin the essential components of the sequence: resource definition of the VCR, MR and CL. The programme i. Sample Management and Sample Security; will confirm the ore body potential in all areas of KDC, ii. Laboratory Sample Preparation and Assaying;

2B conglomerate of multiple band CL facies including secondary minerals such as uranium and sulphur. iii. Analytical Accuracy and Precision; and Exploration activities are focused on the extension of existing iv. Reporting Accuracy. ore bodies and the identification of new ore bodies, both at

At KDC, for the period ending 31 December 2011, the following exploration drilling was achieved:

Exploration drilling and expenditure December 2011 Dec 2010* June 2010 Metres ZAR US$ US$ US$ Operation drilled millions millions millions millions KDC West 10,615 11.518 1.552 0.791 1.096 KDC East 14,519 13.257 1.788 0.793 1.767 Total 25,134 24.775 3.339 1.584 2.863 December 2011 exchange rate: US$:R7.42. * Six month period ending 31 December 2010. 5. Mining

The KDC operation is engaged in underground and surface rock dump mining and is a large,

Multiple band CL facies variation established shallow to deep level gold mine that is accessed from surface via 12 shaft systems to the current lowest working level some 3,347 metres below surface.

A significant challenge facing the KDC operation is seismicity high-yield elongate support units and continuous assessment and to a lesser extent flammable gas. To reduce the impact of the seismic monitoring systems. of seismicity, KDC practises the closely spaced dip pillar mining method and has also adopted a revised stope support Mining methods standard in all areas with friable hangwall, especially in areas Access to the various auriferous reefs being mined is that have the Westonaria Formation Lava hangingwall. provided through vertical, inclined and declined shaft systems. If additional depth is required to fully exploit the reef, Early detection methods and increased ventilation of the and it is economically feasible, then secondary (sub-vertical) shafts are being used to minimise the risk of incidents caused or tertiary shafts are sunk from the underground levels. by flammable gas. Extensive cooling infrastructure is required Horizontal development at various intervals of a shaft, known to maintain comfortable conditions for workers due to the as levels, extends access to the horizon of the reef to be depth of the operations. mined. On-reef development then provides specific mining access. The rock engineering practices are aimed at reducing risks and thus improving safety associated with gravity and seismic The predominant mining layout at KDC is breast stoping with related rockfall and rockburst incidents through implementing dip pillars, with a minor contribution from scattered mining. the recommendations from the risk assessment department Mining spans and pillar widths depend on the location, the reef being mined and the depth of working.

Schematic 3D section through KDC West Schematic 3D section through (roof bolting, netting and closer spaced packs), testing of

7 The mining methods employed at KDC vary between shafts The geological models are validated in IRRIS, where resource and can be subdivided as follows: blocking is also carried out. All blocks are captured according to the geological models and geozones. The mine design 1. KDC West operation includes rock engineering pillars comprising bracket pillars ¨¨ Breast mining with dip pillars in the shaft pillar extraction along major geological structures, as well as stability pillars at D1 Sub-Vertical Shaft; related to the appropriate mining method. An allowance for ¨¨ Breast mining with dip pillars at D1 Tertiary and D5 minor faulting, structure and reef loss, based on historical Sub-Vertical Shafts; results, is applied. ¨¨ Pillar extraction and scattered mining at D2 Shaft; ¨¨ Mini-longwall mining, scattered mining, shaft pillar and The mine design is scheduled on a monthly basis for the first pillar extraction at D4 Sub-Vertical Shaft; two years of the operational plan, which is extended on an ¨¨ Pillar extraction and scattered mining at D6 Sub-Vertical annual basis for the remaining period of the LoM Plan. The Shaft; production parameters necessary for the development of the ¨¨ Pillar extraction and scattered mining at D8 Shaft; and strategic LoM plan are captured from the computer models ¨¨ Reclamation and vamping at D6 Tertiary and D10 on a shaft basis for each period. The inclusion of the surface Sub-Vertical Shafts. Mineral Resources is reviewed annually as part of the strategic planning process. 2. KDC East operation ¨¨ K1 SV Shaft – remnant pillar extraction and breast mining The C2012 operational plan, with respect to remnant pillar with dip pillars; mining, was aligned to the updated Gold Fields Pillar Mining ¨¨ K2 SV Shaft – remnant pillar extraction and breast mining Code of Practice, which takes cognisance of a stringent safe with dip pillars; remnant extraction practice. The rock engineering risk factors ¨¨ K3 and K7 Shafts – breast mining with dip pillars and (risk matrix) associated with remnant extraction were remnant pillar extraction; identified as: Energy Release Rate; Average Pillar Stress; ¨¨ K4 Shaft – breast mining with dip pillars; and Shape; Width-to-Height Ratio; and the presence of ¨¨ K8 Shaft – remnant pillar extraction and breast mining seismically active geological structures. with dip pillars. Mineral Reserve development will continue to be a key KDC is also processing old surface rock dumps containing performance indicator and will be accelerated further in gold. The dumps are loaded and screened to smaller appropriate areas. The following table indicates the fractions and then processed at D2, D3 and K1 plants. development advanced for the last twelve months to December 2011. A total of 45.0 kilometres was developed with 7.7 kilometres driven on-reef.

Development results for 12 months to December 2011: KDC West Category CL MR VCR Total Advanced (metres) 18,716 1,522 5,391 25,628 On-reef (metres) 3,223 405 739 4,367 Sampled (metres) 3,042 321 411 3,774 Channel width (cm) 78 49 42 72 Average grade (g/t) 23.7 24.7 41.2 24.8 Average value (cm.g/t) 1,851 1,211 1,732 1,707

Barring to make the workplace safe KDC East Mine planning and scheduling Category KLOOF MR VCR Total All mine design and scheduling is undertaken using Advanced (metres) 686 2,250 16,435 19,371 Cadsmine© computer software in conjunction with the On-reef (metres) 257 440 2,614 3,311 Integrated Resource and Reserve Information System (IRRIS) proprietary to Gold Fields. This includes the delineation of Sampled (metres) 201 492 2,304 2,997 mining or stoping areas for each mining level and section, Channel width (cm) 111 104 138 131 usually leading from an extension to the existing mining Average grade (g/t) 16.8 7.1 21.0 19.0 sequence, and the definition of the necessary development layouts. The latest update of the geological structure model is Average value (cm.g/t) 1,876 741 2,907 2,482 referenced and incorporated into the mine design.

Gold Fields: KDC Gold Mine – Technical Short Form Report 2011 8 Production and hoisting capacities Hoisting Operating capacity Business unit Shaft Shaft (ktpm) BU 1 D1 Shaft D1 105.0 D1 SV 105.0 D1T 121.0 D5 Shaft D5 70.0 D5 SV 159.0 BU 2 D2 Shaft D2 165.0 D4 Shaft D4 SV 57.0 BU 3 D6 Shaft D6 66.0 D6 SV 96.0 D6 T 65.0 D8 Shaft D8 66.0 D9 Shaft D9 – D10 Shaft D10 SV – BU 4 K3 Shaft K3 SV 76.5 K4 Shaft K4 75.0

K4 SV 82.0 0 1 2.5 km

BU 5 K1 Main Shaft K1 150.0 Shafts K1 Shaft K1 SV 91.0 Mined out Areas Processing Plant K2 Shaft K2 SV 101.0 K7 Shaft K7 176.0 K7 SV 136.0 K8 Shaft K8 73.0 KDC shaft zones K10 Shaft K10 – SV: Sub vertical shaft; T: Tertiary Note: Hoisting capacity for K4 SV will be upgraded within the next three years

6. Projects The current major mine projects at KDC are the KDC West Decline Project at D5 Shaft, the KDC East 46 Level Project at K4 Shaft, the Growth Project for the treatment of surface rock dump material and the Tailings Storage Re-treatment Process Project.

KDC-West 5 Shaft Decline Project KDC West D5 decline, which was included in the previous ¨¨ Installation of a surface rock winder at the 4 Main shaft; and LoM (at pre-feasibility), has been excluded from the current ¨¨ Access to the ground between 45 and 46 level (downsize LoM (3.7 million ounces) due to a negative NPV (at R310,000/ of the previous 55 decline project). A revised layout of kg) resulting from a reduction in mined value and escalation of developing 46 level from the current 4SV shaft was costs. re-evaluated in terms of the time span to access the reef horizon and the difficulty in terms of all the current The mine is completing a feasibility study, aimed at identifying infrastructure on this level. A feasibility study has been alternative, financially viable means of accessing the below conducted on a twin mini decline system from 45 to infrastructure Mineral Reserves. The study will be completed in 46 level on the northern side of shaft in close proximity to 2012. the target orebody, This will facilitate faster and easier access to the economic Sandy 1 VCR facies, the majority KDC-East 4 Shaft Re-capitalisation Project of which is located between 45 and 46 level. In order to enable 4 Shaft to achieve optimum production levels, an extensive re-capitalisation study has been The GROWTH (Gold Recovery Opportunities from Waste conducted. On full approval of the programme, the project will Treatment Holistically) Project comprise the following initiatives: KDC has many low grade (waste) surface rock dumps (SRDs) ¨¨ Development of inter levels on 44 level north and 42 level and residue tailings facilities that have accumulated since south; mining operations began more than 40 years ago. In some ¨¨ Installation of an ore silo between 45 and 46 levels to instances these SRDs are being selectively reprocessed handle the projected increase in production; through existing plants where surplus milling capacity exists. ¨¨ Mechanical upgrade of the sub-vertical shaft rock winder; With the exception of pre-screening, no other upgrading of the ¨¨ Completion of internal service and ventilation systems in material is generally undertaken pre processing. These SRDs the 59 line and 43 line; offer a significant opportunity to Gold Fields to realise additional

9 gold production, as well as reducing closure liability, as the sites ultimately require rehabilitation.

The Gold Recovery Opportunities from Waste Treatment Holistically (GROWTH) concept has been adopted as a vehicle to drive the value proposition associated with the environomics of processing SRD’s and TSF’s for gold recovery. The first phase of the GROWTH concept is the full implementation of the Python Plant Technology for the processing of SRD’s at all sites, and comes with the

advantage of gold recovery along with operations (Dump 13) re-treatment Tailings concurrent rehabilitation. The slurry is received into a surge feed slurry overflows from tank to tank via The project is designed to treat SRD’s tank ahead of pumping to the cyclone the interconnected open launders. A to produce gold, backfill material, as cluster at a pre-determined cyclone residence time of two hours per leach well as industrial aggregate suitable for feed density to achieve the requisite tank is adequate to achieve the best an appropriate off-take agreement as classification. The cyclone overflow at possible recovery from a tailings part of our Sustainable Development’s 80% passing 75 µm gravitates to the retreatment operation. local economic development (“LED”) dewatering thickeners or cyclones while mandate This basket of products will the cyclone underflow gravitates to the The leached slurry is pumped to the result in a positive cash flow and regrind mill sump where it is pumped to Carbon-In-Pulp (CIP) circuit where facilitate the ultimate concurrent the regrind mill for further particle size dilution water is added to achieve a pulp rehabilitation of the SRD sites ahead of reduction (80% passing 75 µm). density of 1.4 gm3. The leached slurry is current life of mine closure schedules. contacted with activated carbon, where Flocculent and lime are added to the dissolved gold in the slurry is absorbed Tailings Storage Re-treatment dewatering thickener, to aid in the solid/ onto the carbon. Loaded carbon is Process Project liquid separation, and the thickened pumped from the head tank in a CIP or Gold Fields has a total of six dormant slurry underflow is pumped to the leach CIL arrangement and screened for Tailings Storage Facilities (TSF) at its circuit at a density of between 1,500 to entrained slurry to be sent to elution and KDC operation. Two of these are at 1,600 t/m3. The thickener underflow electrowinning. KDC West operation with an average slurry is pumped to a train of leach gold grade of 0.47g/t while four at the tanks (may also be Carbon In Leach) via The residual slurry after gold KDC East operation averaging 0.27g/t a leach conditioning tank where cyanide extraction from a CIL or a gold. A pre-feasibility study exercise is (sheared oxygen and lime may also be CIP arrangement is pumped to the currently being finalised through a added if required) is added prior to the tailings storage facilities (TSF) for final project management company, and will leaching process. Clear water overflows tailings disposal. be followed by a full feasibility study to the thickener and is returned to the determine the best means of bringing process water tank for re-use in the The diagram below describes the to account the 2.9 million ounces in process. basic TFS monitoring flow sheet while Mineral Reserves. the pictures illustrate the physical Lime is added to maintain a leach operation at KDC West Dump 13, The Tailings Storage Facilities (TSF) process pH of above 10.5. The leached which is on the footprint of TSF 3. material is reclaimed by hydraulic mining using high pressure monitoring guns placed against the face of the TSF or on top of the TSF. The material is reclaimed at an average gold grade of 0.3 g/t.

The reclaimed material is re-pulped with the resulting slurry gravitating to TSF High pressure water Screening Pulp transfer the sump at the monitoring pump monitoring station where dilution water is added (if required) to a desired pulp density of 1.3 gm3 (40% solids). Slurry is pumped and transferred to a tramp screen to Overflow remove vegetation, coarse material and any undesirable material in the Underflow process. The tramp undersize screen material gravitates via the launder into Pulp receiving Gold extraction Disposal to TSF a pulp transfer tank. The slurry is at plant pumped from the pulp transfer tank to the gold treatment plant. Classification and regrind monitoring flow sheet Basic tailings reprocessing

Gold Fields: KDC Gold Mine – Technical Short Form Report 2011 10 7. Mineral processing

KDC operates five gold processing plants, three at the KDC-West operation and two at the KDC-East operation. Both operations’ plants use proven metallurgical processes with centralised elution, carbon treatment and smelting facilities. Centralisation impacts better recovery rates, giving reduced dissolved gold losses and operating cost, as well as improved security.

KDC’s first gold pour took place in 1952 at the original KDC crushing, utilising open circuit rod mills for primary milling D2 Gold Plant with ore obtained from the now defunct and closed circuit pebble mills for secondary milling. After 11 shaft. Currently D2 Plant is only treating surface waste milling, the pulp is thickened and then processed through rock material at 200 kt per month. It is delivered by rail from air agitated leaching; drum filtration, zinc precipitation and rock dumps to the plant feed bunkers. The process flow smelting to doré. In June 2001 an AAC Pump Cell CIP incorporates two SAG mills, a ball milling circuit, cyanide circuit was installed to replace the less efficient drum leaching and a carbon in pulp (CIP) plant. Loaded carbon is filtration and zinc precipitation. Smelting was also Tailings re-treatment operations (Dump 13) re-treatment Tailings transported to the central Elution Circuit at D1 Plant. discontinued, with loaded carbon being transported to the K2 Plant for elution and thermal regeneration. The D1 Plant was commissioned in 1972 as a three stage crushing, two stage milling, filtration and zinc precipitation The K2 Plant was commissioned in November 1990. This operation. The plant was initially designed and installed to plant receives underground Run-of-Mine ore (RoM), which is treat 100 kt of ore per month, but this has been gradually crushed and delivered to a stacker reclaimer system, where increased to a monthly throughput of 240 kt. The mineral the ore is stored and blended prior to reclamation and processing technology in the plant is based on SAG milling delivery to the mills. Surface material is also delivered to the circuit followed by cyanide leaching. The SAG milling circuit stacker pad to utilise plant capacity. There are two Semi- was commissioned in September 2003 and replaced the Autogenous Grinding (SAG) mills, which are equipped with conventional crushing and milling circuit while the filtration variable-speed ring motor drives, and can be operated as and zinc precipitation processes were replaced by the state fully autogenous units or as semiautogenous units by adding of the art carbon in pulp (CIP) plant. Originally a uranium steel grinding balls. Milled ore is thickened ahead of cyanide plant, D3 Plant was converted in 1998 to a surface low- leaching in air-agitated tanks and adsorption onto activated grade waste rock treatment facility. The plant was carbon in a conventional CIP circuit. Loaded carbon is eluted constructed using a combination of new as well as existing in an AARL elution circuit, which was upgraded in June 2001 equipment on site. This plant has the capacity to treat and further in October 2003. It now serves as the central 115 kt per month of rock material reclaimed from the waste elution facility for KDC East. The upgrade included the rock dumps located on the mine. installation of Continuous Electrowinning Sludge Reactors, which are working very efficiently. Cathode sludge is filtered The K1 Plant was commissioned in 1968 to treat and smelted to produce bullion. The current operational underground ore. This plant comprises three stage capacity of the K2 Plant is 162 ktpm.

Plant capacities Efficiency Plant Capacity (tpm) (% extraction) Material treated D1 – CIP 255,000 97 Underground ore D2 – CIP 200,000 91 Surface rock dump D3 – CIL 115,000 90 Surface rock dump K1 – CIP 170,000 91 Surface rock dump K2 – CIP 162,000 98 Underground ore KDC East Python 1 – Flotation 71,000 87 Surface rock dump Panoramic view of KDC West Panoramic view of KDC West 5 Shaft Complex Basic tailings reprocessing monitoring flow sheet Basic tailings reprocessing

11 8. Sustainable development

Gold Fields has embraced sustainable development as a business imperative, which is reflected in its vision, values and strategy.

Gold Fields has introduced structures that encourage a KDC has, as part of its social management imperative, a networked interface between disciplines like safety, health, portfolio of projects and initiatives designed to give effect to environmental engineering, natural environment, risk, the objectives of the Minerals and Petroleum Resources stakeholder engagement, social management, legal and Development Act (MPRDA). These include, among others, communication. This approach has allowed Gold Fields to the construction of the Simunye Health Care Facility (pictured capitalise on synergies and to avoid duplication. In this below) near Westonaria, which was delivered in partnership regard, several Key Performance Indicators (KPIs) are with the Gauteng Department of Health and Social monitored and utilised to make informed business decisions. Development and the Westonaria Local Municipality. The facility, which boasts modern amenities, will provide Gold Fields is designing a safety management system called comprehensive medical services to a community of more the Safe Production Management System, to address than 48 000 people whose current access to healthcare is outstanding issues identified and to assist the operations to limited to a mobile refurbished container and an emergency improve health and safety to best practice levels. Gold Fields clinic situated some six kilometres away. has committed itself to the Mine Health and Safety Council target set by the industry in conjunction with the Department In our effort to reduce our environmental footprint, we are of Mineral Resources. These milestones are based on rate currently exploring the possibility of utilising timber from our improvements for fatalities, noise-induced hearing losses and flagship project, the Eradication of Alien Vegetation, as input silicosis, with the objective of aligning with international into the bio-mass to energy project. The Eradication of Alien norms. Passing of the Mine Health and Safety Act in 1996 Vegetation project has, to date, resulted in the establishment heralded a transition to a new paradigm shift in mining health of six small, medium and micro enterprises (SMMEs) from and safety in South Africa. Since that time, the Mine Health local mine communities. and Safety Council has set a benchmark for reduction of accidents to international standards in the South African KDC also supports agricultural projects for communities in mining industry by 2013. KwaZulu Natal and the Eastern Cape, our major labour sending areas. KDC’s environmental initiatives are focused on reducing the impact that the mine may have on the environment. All For details on the Social and Labour Plan (SLP) refer to potential sources of pollution like the water discharges are Section 5 in the Integrated Annual Review. sampled, analysed and monitored on a regular basis. Concurrent rehabilitation projects, like alien vegetation eradication are the current focus.

The Mine has an environmental management team who are supported by specialist assistance from the regional office at Libanon Business Park. Following an audit conducted in October 2011, the mine was certified to be in compliance with ISO 14001: 2004 standard. In addition, quarterly internal audits, as well as annual external surveillance audits of all management units are performed for ongoing verification of conformance. A prefeasibility study on our water management and water related liabilities was completed in

2011. This will be followed by a feasibility study in 2012. Facility The newly built Simunye Health Care near Westonaria

Safety statistics Class Units F2007 F2008 F2009 Dec 20101 Dec 2011 Fatalities number 31 16 22 11 13 Fatality rate per mmhrs 0.33 0.18 0.24 0.13 0.17 LTIFR per mmhrs 11.32 6.72 5.26 6.31 7.95

1 For six months to December 2010.

Gold Fields: KDC Gold Mine – Technical Short Form Report 2011 12 9. Mineral Resources and Mineral Reserves

Mineral Resources are reported in full compliance to the 2007 SAMREC Code and are consistent with the approach used at other Witwatersrand deep level gold operations. Realistic mine design and scheduling is underpinned by dynamic resource modelling.

KDC’s Mineral Resources and Mineral Reserves are reported within its Mining Right and are adjusted to show the split between above (AI) and below (BI) current shaft infrastructure as defined by 50 level at KDC’s West operation and 46 level at KDC’s East operation.

In this reporting cycle, considerable Mineral Resource ounces that previously converted to the Measured, Indicated and Inferred Resource categories now remain in inventory. This revision is based on the enhanced in-house resource classification, which takes into account Gold Fields safety value (“If we cannot mine safely, we will not mine”), as well as the principle that there must be reasonable and realistic prospects for eventual economic extraction.

Mineral Resources Mineral Resources are quoted at an appropriate in situ economic cut-off grade with tonnages and grades based on the resource block model. They also include estimates of any material below the cut-off grade required to be mined to extract the complete pay portion of the Mineral Resource.

KDC East Tonnes (Mt) Grade (g/t) Gold (’000 oz) Mineral Resource Dec Dec June Dec Dec June Dec Dec June classification 2011 2010 2010 2011 2010 2010 2011 2010 2010 Underground Measured 15.1 15.2 68.4 17.3 17.1 11.6 8,396 8,365 25,533 Indicated (AI) 45.0 41.1 73.9 7.7 9.1 8.0 11,196 12,025 19,071 Inferred (AI) – 4.7 – – 7.8 – – 1,174 – Total above infrastructure 60.1 61.0 142.3 10.1 11.0 9.7 19,592 21,564 44,604 Indicated (BI) 17.1 17.8 79.5 17.0 18.1 12.8 9,341 10,348 32,729 Inferred (BI) 17.5 16.0 – 16.9 16.2 – 9,502 8,321 – Total underground 94.7 94.8 221.8 12.6 13.2 10.8 38,435 40,233 77,333 Surface Indicated SRD 8.0 22.5 28.3 0.7 0.6 0.6 185 434 559 Measured TSF 250.4 246.0 243.9 0.3 0.3 0.3 2,219 2,204 2,199 Total surface 258.4 268.5 272.2 0.3 0.3 0.3 2,404 2,638 2,758 Grand total 353.1 363.3 494.0 3.6 3.7 5.0 40,839 42,871 80,091

KDC West Tonnes (Mt) Grade (g/t) Gold (’000 oz) Mineral Resource Dec Dec June Dec Dec June Dec Dec June classification 2011 2010 2010 2011 2010 2010 2011 2010 2010 Underground Measured 20.2 25.2 48.0 14.3 14.0 10.5 9,312 11,366 16,194 Indicated (AI) 14.5 20.2 24.9 12.0 12.6 12.7 5,595 8,168 10,177 Inferred (AI) – – 17.4 – – 6.0 – – 3,343 The newly built Simunye Health Care Facility The newly built Simunye Health Care near Westonaria Total above infrastructure 34.7 45.4 90.3 13.4 13.4 10.2 14,907 19,534 29,714 Indicated (BI) 31.6 32.3 43.2 9.9 11.1 12.4 10,092 11,517 17,262 Inferred (BI) – – 25.9 – – 5.9 – – 4,899 Total underground 66.3 77.7 159.4 11.7 12.4 10.1 24,999 31,051 51,875 Surface Indicated SRD 6.9 7.7 6.8 0.6 0.6 0.7 142 160 152 Measured TSF 121.2 172.1 170.9 0.4 0.3 0.3 1,516 1,865 1,856 Total surface 128.1 179.8 177.7 0.4 0.4 0.4 1,658 2,025 2,008 Grand total 194.4 257.5 337.1 4.3 4.0 5.0 26,657 33,076 53,883

13 Tonnes (Mt) Grade (kg/t) Uranium (Mlb) Mineral Inventory Dec Dec June Dec Dec June Dec Dec June Uranium 2011 2010 2010 2011 2010 2010 2011 2010 2010 Underground Scheduled Inventory 40.9 – – 0.042 – – 3.816 – – Total underground 40.9 – – 0.042 – – 3.816 – – Surface tailings Tailings 371.6 418.1 414.8 0.047 0.048 0.048 38.421 44.307 44.164 Total surface tailings 371.6 418.1 414.8 0.047 0.048 0.048 38.421 44.307 44.164 Grand total 412.5 418.1 414.8 0.046 0.048 0.048 42.237 44.307 44.164

Modifying factors ¨¨ The Measured and Indicated Mineral Resources are KDC East (underground)

inclusive of those Mineral Resources modified to produce 350 40 Mineral Reserves; 300 35 ¨¨ All Mineral Resources and Mineral Reserves are stated as 30 at 31 December 2011. Unless otherwise stated, all 250 25 Mineral Resources and Mineral Reserves are quoted as 200 20 100% (managed) and not attributable with respect to 150 ownership; 15 Tonnes (millions) 100 ¨¨ All Mineral Reserves are quoted in terms of Run-of-Mine — 10 50 5

(RoM) grades and tonnage as delivered to the Average grade above cut-off (g/t) metallurgical processing facilities and are fully diluted; 0 0 — 0 2 4 6 8 10 12 14 16 18 20 22 24 ¨¨ Mineral Reserve statements include only Measured and Cut-off grade (g/t) Indicated Mineral Resources, modified to produce Mineral Reserves and contained in the LoM plan; and KDC West (underground) ¨¨ Mineral Resources and Mineral Reserves undergo both internal and external audits during the year and any 300 35

issues identified are rectified at the earliest opportunity – 250 30 usually during the current reporting cycle. 25 200 20 Grade tonnage curves 150 The grade tonnage curve (GTC) represents undiluted grade 15

Tonnes (millions) 100 10

(at block width) and tonnes within the total Mineral Resource. — Underground Mineral Resources make provision for minor 50 5 Average grade above cut-off (g/t) faulting and minor geological losses. 0 0 — 0 2 4 6 8 10 12 14 16 18 20 Cut-off grade (g/t)

KDC East KDC West Dec Dec Dec Dec Modifying factors Unit 2010 2011 2010 2011 Mineral Resource parameters Gold Price US$/oz 1,100 1,450 1,100 1,450 Exchange Rate ZAR:US$ 8.24 7.42 8.24 7.42 Gold Price ZAR/kg 290,000 340,000 290,000 340,000 Pay Limit cm.g/t 1,460 1,479 1,130 1,290 Mineral Reserve parameters Gold Price US$/oz 1,000 1,300 1,000 1,300 Gold Price ZAR/kg 265,000 310,000 265,000 310,000 Pay Limit cm.g/t 1,610 1,610 1,240 1,420 Mined Value cm.g/t 1,950 1,944 1,687 1,771 Mine Call Factor % 83 85 90 85 Block Factor % 100 100 99 100 Shortfall % 10 14 11 13 Stoping width cm 157 156 154 153 Mill Width cm 206 212 201 210 Plant Recovery Factors – Underground % 98 98 97 97 – TSF % – 55 – 60 – SRD % 85 85 85 85

Gold Fields: KDC Gold Mine – Technical Short Form Report 2011 14 Mineral Reserves Mineral Reserve estimation at KDC is based on development of an appropriately detailed and engineered LoM plan, which accounts for all necessary access development and stope designs. The planning process incorporates appropriate modifying and technical-economic factors.

Significant increases in power, consumable and labour costs have limited the benefit of an increased gold price with the effect that pay limits show a nominal increase since the December 2010 declaration despite the increase in the Mineral Reserves gold price. Optimised mine design and scheduling on the Mineral Reserve estimate, utilising a US$1,300 per ounce gold price, resulted in a Proved and Probable Mineral Reserve estimate as at 31 December 2011, as follows:

Tonnes (Mt) Grade (g/t) Gold (’000 oz) KDC East Mineral Reserve Dec Dec June Dec Dec June Dec Dec June classification 2011 2010 2010 2011 2010 2010 2011 2010 2010 Underground Proved 12.0 7.8 16.4 7.8 9.0 7.5 3,021 2,253 3,934 Probable (AI) 15.8 23.6 17.1 7.7 7.5 7.9 3,930 5,684 4,357 Probable (BI) – – 3.4 – – 7.9 – – 868 Total underground 27.8 31.4 36.9 7.8 7.9 7.7 6,951 7,937 9,159 Surface Probable SRD 8.0 9.1 11.2 0.7 1.0 0.8 185 294 314 Proved TSF 155.3 – – 0.3 – – 1,618 – – Total surface 163.3 9.1 11.2 0.3 1.0 0.8 1,803 294 314 Grand total 191.1 40.5 48.1 1.4 6.3 6.1 8,754 8,231 9,473

Tonnes (Mt) Grade (g/t) Gold (’000 oz) KDC West Mineral Reserve Dec Dec June Dec Dec June Dec Dec June classification 2011 2010 2010 2011 2010 2010 2011 2010 2010 Underground Proved 10.9 11.2 15.7 7.7 8.0 7.4 2,693 2,887 3,714 Probable (AI) 15.6 20.9 18.6 7.4 7.8 8.8 3,689 5,250 5,256 Probable (BI) – 16.1 27.4 – 7.2 9.2 – 3,713 8,097 Total underground 26.5 48.2 61.7 7.5 7.6 8.6 6,382 11,850 17,066 Surface Probable SRD 6.9 7.7 6.8 0.6 0.6 0.7 142 160 152 Proved TSF 91.9 – – 0.4 – – 1,299 – – Total surface 98.8 7.7 6.8 0.5 0.6 0.7 1,441 160 152 Grand total 125.3 55.9 68.5 1.9 6.7 7.8 7,823 12,010 17,218 Modular section of Python plant

15 KDC East Proved Probable Total Mineral Reserve Mineral Reserve classified per Tonnes Grade Gold Tonnes Grade Gold Tonnes Grade Gold mining area (kt) (g/t) (koz) (kt) (g/t) (koz) (kt) (g/t) (koz) Underground 1 Shaft 3.6 4.3 494 0.7 4.1 98 4.3 4.3 592 2 Shaft 1.0 12.3 388 2.5 10.4 828 3.5 10.8 1,216 3 Shaft 2.3 11.8 861 0.5 11.9 197 2.8 11.8 1,058 4 Shaft 3.9 8.0 992 8.6 7.4 2,048 12.5 7.6 3,040 4 Shaft (46 Decline) – – – 1.5 7.3 353 1.5 7.3 353 7 Shaft 0.7 7.8 172 0.7 8.6 193 1.4 8.1 365 8 Shaft 0.5 6.6 114 1.3 5.2 214 1.8 5.7 328 Total underground 12.0 7.8 3,021 15.8 7.7 3,930 27.8 7.8 6,951 Surface Surface stockpiles – – – 8.0 0.7 185 8.0 0.7 185 TSF 155.3 0.3 1,618 – – – 155.3 0.3 1,618 Grand total (Underground and Surface) 167.3 0.9 4,639 23.8 5.4 4,115 191.1 1.4 8,754

KDC West Proved Probable Total Mineral Reserve Mineral Reserve classified per Tonnes Grade Gold Tonnes Grade Gold Tonnes Grade Gold mining area (kt) (g/t) (koz) (kt) (g/t) (koz) (kt) (g/t) (koz) Underground 1 Shaft 1.3 7.3 306 1.5 9.7 472 2.8 8.6 778 1 Shaft Pillar – – – 2.2 7.9 558 2.2 7.9 558 2 Shaft 0.7 11.2 248 1.3 7.3 306 2.0 8.6 554 4 Shaft 2.6 12.3 1,045 1.8 8.9 506 4.4 11.0 1,551 5 Shaft 3.5 5.8 654 7.6 6.9 1,687 11.1 6.6 2,341 6 Shaft 1.1 4.0 139 0.3 4.6 47 1.4 4.1 186 8 Shaft 1.6 5.5 292 0.9 3.9 113 2.5 5.0 405 10 Shaft 0.02 16.0 10 – – – 0.02 16.0 10 Total Underground 10.8 7.7 2,694 15.6 7.4 3,689 26.4 7.5 6,383 Surface Surface stockpiles – – – 6.9 0.6 142 6.9 0.6 142 TSF 91.9 0.4 1,299 – – – 91.9 0.4 1,299 Grand total (Underground and Surface) 102.7 0.8 3,992 22.5 5.3 3,831 125.2 1.9 7,823 Earthworks for reclamation of KDC West TSF and SRD of KDC West Earthworks for reclamation

Gold Fields: KDC Gold Mine – Technical Short Form Report 2011 16 Mineral Resources and Mineral Reserves reconciliation year-on-year

Factors that affected Mineral Resource reconciliation: Factors that affected Mineral Reserve reconciliation:

¨¨ Decrease due to mined depletion; ¨¨ Depletion since January 2011; ¨¨ Enhancements to the in-house Mineral Resource ¨¨ Geological and evaluation model enhancements classification and an increase in pay limits, has resulted coupled with reef grade changes; in a reduction in ounces at KDC West of 5 million ¨¨ Specific exclusions (D5 decline) and changes in dip ounces and at KDC East of 2 million ounces; and pillar layouts; and ¨¨ Economic factors (higher pay limit at KDC West). ¨¨ Economic factors (higher pay limit at KDC West).

KDC East – Change in Mineral Resources KDC East – Change in Mineral Reserves December 2010 to December 2011 December 2010 to December 2011

50 10 1.6 0.1 3.7 0.2 0.1 8.8 42.9 0.1 0.3 40 0.6 0.6 40.8 8 8.2 0.5 Gold (Moz) Gold (Moz) 4.3 0.2 30 6

20 4

10 2

0 0 2010 2011 2010 2011 Mined factors factors Speci c Speci c Geology depletion Technical Resource Depletion Pay limits modelling inclusions Economic Evaluation December December Parameter December December exclusions SRD & TSF classi cation (incl. surface) !"#$%&$ KDC West – Change in Mineral Resources KDC West – Change in Mineral Reserves &'%('%)' December 2010 to December 2011 December 2010 to December 2011

35 0.1 33.1 0.7 0.0 12 12.0 0.2 0.9 0.5 30 1.1 0.3 10 3.4 26.7 1.3

Gold (Moz) 25 Gold (Moz) 8 0.5 20 3.7 0.5 0.3 7.8 6 15 10 4 5 2 0 0 grid 2010 2011 2010 Mined Pillars factors factors Speci c Speci c Geology Geology depletion structure Technical inclusions Resource Depletion Economic Pay limits modelling Evaluation December December exclusions 2011 Final December December Estimation SRD & TSF (incl. surface)

Mineral Reserve Sensitivity (KDC East and KDC West – underground only) The following graphs indicate the Mineral Reserve sensitivity at -10%, -5%, Base, +5%, +10% and +25% to the gold price at KDC East and KDC West respectively. The Mineral Reserve sensitivities are not based on detailed depletion schedules and should be considered on a relative and indicative basis only.

KDC East KDC West Managed Mineral Reserve Sensitivity Managed Mineral Reserve Sensitivity

8.0 10 8 8.7 7.0 6.7 6.4 7.6 6.1 7.0 7.3 6 5.7 Gold (Moz) 6.3 6.6 Gold (Moz)

5 4

0 0 (-10%) (-5%) (Base) (+5%) (+10%) (+25%) (-10%) (-5%) (Base) (+5%) (+10%) (+25%) 310,000 310,000

Earthworks for reclamation of KDC West TSF and SRD of KDC West Earthworks for reclamation Gold price (ZAR/kg) Gold price (ZAR/kg)

17 10. Regulatory codes

SAMREC Sarbanes-Oxley Act This Technical Statement has been prepared in compliance The Mineral Resources and Mineral Reserves are underpinned with the South Africa Code for the Reporting of Exploration by an adequate Mineral Resource management process and Results, Mineral Resources and Mineral Reserves (2007 protocol to ensure adequate corporate governance in respect SAMREC Code). of the intent of the Sarbanes-Oxley Act.

JSE Environmental This Technical Statement has been prepared in compliance KDC has an environmental management team who are with the Listings Requirements of the JSE Limited, South supported by specialists from the South Africa regional office Africa, specifically Section 12. at Libanon. The systems, procedures and training are at international leading practice levels.

11. Competent Persons

Internal technical reviews have been conducted by the Competent Persons as listed, who are full-time employees of Gold Fields Limited.

Competent Persons

JA du Plessis: Manager: Mine Planning and Resource Management (KDC operation) MSc (Mining Eng), GDE, National Higher Diploma Mine Surveying and Mine Surveyors’ Certificate of Competency. Registered with PLATO as a Professional Mine Surveyor (Registration number PMS 0145), Fellow of the Institute of Mine Surveyors. Mr Du Plessis has over 32 years’ experience in the mining industry (four years at KDC) and is responsible for the overall correctness, standard and compliance of the KDC declaration.

J van Eeden: Chief Geologist (KDC-West operation) MSc (Geology). Registered with SACNASP Reg. No. 400043/09. Mr Van Eeden has over 28 years’ experience in the mining industry and is responsible for Geology and Exploration for KDC-West.

K Sibeko: Chief Geologist (KDC-East operation) BSc (Hons) (Geology). Mr Sibeko has over 18 years’ experience in the mining industry and is responsible for Geology and Exploration for KDC-East.

C Dewey: Chief Evaluator (KDC-East operation) MSc Mining Engineering, GDE, NHD Mine Survey and Mine Surveyor’s Certificate of Competence. Registered with PLATO as a Professional Mine Surveyor (Reg. No. PMS 0234), Fellow of the Institute of Mine Surveyors. Mr Dewey has over 37 years’ experience in the mining industry and is responsible for the Sampling and Evaluation functions for KDC-East.

M Greenhalgh: Chief Evaluator (KDC-West operation) GDE Geostatistics, Mining Engineering and Certificate in Mineral Resource Management. Registered with SAIMM, Reg. No. 704826. Mr Greenhalgh has over 23 years’ experience in the mining industry and is responsible for sampling and evaluation functions at KDC-West.

W de Klerk: Chief Surveyor (KDC operation) ND Mine Survey, Mine Surveyor’s Certificate of Competence and GDE. Registered with PLATO as a Professional Mine Surveyor (Reg. No. PMS 0233). Mr De Klerk has over 29 years’ experience in the mining industry and is responsible for Survey, Reporting and Historical Modifying Factors for KDC.

D Foley: Chief Mine Planner (KDC operation) GDE in Mining Engineering. Registered with SAIMM Reg. No. 703904. Mr Foley has over 32 years’ experience in the mining industry and is responsible for the Mine Planning and Scheduling for KDC.

Gold Fields: KDC Gold Mine – Technical Short Form Report 2011 18 KDC West Shaft Reference

D West 1 Shaft Masakhane Shaft D West 2 Shaft Pitseng Shaft D West 4 Shaft Ya Rona Shaft D West 5 Shaft Hlanganani Shaft D West 6 Shaft Bambisanani Shaft D West 7 Shaft Rethabile Shaft D West 8 Shaft Khomanane Shaft D West 9 Shaft Ithembalethu Shaft D West 10 Shaft Thabelang Shaft KDC East Shaft Reference

K East Main Shaft Thuthukani Shaft K East 3 Shaft Hlalanathi Shaft K East 4 Shaft Ikamva Shaft K East 7 Shaft Manyano Shaft K East 8 Shaft Masimthembe Shaft K East 10 Shaft Celemanzi Shaft

Kloof-Driefontein Complex A division of GFI Mining South Africa (Pty) Limited Plan showing mine infrastructure as at 31 December 2011

Gauss Conform Projection, Central Meridian Lo 27 East

Reference

Development and stoping on Main Reef (Middelvlei Reef) ...... Development and stoping on Ventersdorp Contact Reef ...... Development and stoping on Kloof Reef ...... Development and stoping on Libanon Reef ...... Development and stoping on Carbon Leader ...... Development off reef ...... Sub-crop of Main Reef (Middelvlei Reef) ...... Sub-crop of Ventersdorp Contact Reef ...... Sub-crop of Kloof Reef ...... Sub-crop of Libanon Reef ...... Sub-crop of Carbon Leader Reef ...... Development Ore Reserve ...... Dykes ...... Faults ...... Shafts ...... Boreholes No. and Surface Position ...... Stabilising pillars ...... Longwall stoping ...... Gold Recovery Plant ...... Prospecting Right Area ......

Datum 1,828.8 metres above mean sea level KDC Life of Mine Mineral Resource Classification

Legend Mine Boundary Shafts Mined out Areas Carbon Leader Subcrop VCR Subcrop Pillars Mineral Resources Measured Mineral Resources Indicated Mineral Resources Inferred Mineral Resources

KDL East: VCR only KDC West: CL only

KDC Mineral Resource and Mineral Reserve Classification

KDC East underground KDC West underground

exploration exploration results results

MINERAL MINERAL MINERAL MINERAL RESOURCES RESERVES RESOURCES RESERVES 94.7 Mt @ 12.6 g/t 27.8 Mt @ 7.8 g/t 66.3 Mt @ 11.7 g/t 26.5 Mt @ 7.5 g/t 38.4 Moz 7.0 Moz 25.0 Moz 6.4 Moz Reported as in situ Reported as mineable Reported as in situ Reported as mineable mineralisation estimates production estimates mineralisation estimates production estimates

INFERRED INFERRED

17.5 Mt @ 16.9 g/t 9.5 Moz —

INDICATED PROBABLE INDICATED PROBABLE

62.1 Mt @ 10.3 g/t 15.8 Mt @ 7.7 g/t 46.1 Mt @ 10.6 g/t 15.6 Mt @ 7.4 g/t 20.5 Moz 3.9 Moz 15.7 Moz 3.7 Moz Increasing level of geoscientific knowledge and confidence Increasing Increasing level of geoscientific knowledge and confidence Increasing MEASURED PROVED MEASURED PROVED

15.1 Mt @ 17.3 g/t 12.0 Mt @ 7.8 g/t 20.2 Mt @ 14.3 g/t 10.9 Mt @ 7.7 g/t 8.4 Moz 3.0 Moz 9.3 Moz 2.7 Moz

Consideration of mining, metallurgical, economic, marketing, legal, Consideration of mining, metallurgical, economic, marketing, legal, environmental, social and governmental factors (the ‘modifying factors’) environmental, social and governmental factors (the ‘modifying factors’)

KDC East surface KDC West surface

exploration exploration results results

MINERAL MINERAL MINERAL MINERAL RESOURCES RESERVES RESOURCES RESERVES 258.4 Mt @ 0.3 g/t 163.3 Mt @ 0.3 g/t 128.1 Mt @ 0.4 g/t 98.8 Mt @ 0.5 g/t 2.4 Moz 1.8 Moz 1.7 Moz 1.4 Moz Reported as in situ Reported as mineable Reported as in situ Reported as mineable mineralisation estimates production estimates mineralisation estimates production estimates

INFERRED INFERRED

— —

INDICATED PROBABLE INDICATED PROBABLE

8.0 Mt @ 0.7 g/t 8.0 Mt @ 0.7 g/t 6.9 Mt @ 0.6 g/t 6.9 Mt @ 0.6 g/t 0.2 Moz 0.2 Moz 0.1 Moz 0.1 Moz Increasing level of geoscientific knowledge and confidence Increasing Increasing level of geoscientific knowledge and confidence Increasing MEASURED PROVED MEASURED PROVED

250.4 Mt @ 0.3 g/t 155.3 Mt @ 0.3 g/t 121.2 Mt @ 0.4 g/t 91.9 Mt @ 0.4 g/t 2.2 Moz 1.6 Moz 1.5 Moz 1.3 Moz

Gold Fields: KDC Gold Mine – Technical Short Form Report 2011 21 12. Brief history

The history of KDC

Cecil Rhodes and Charles Rudd, as joint Managing Directors, are co-founders of ‘The Gold Fields of South 1887: Africa Limited’ in 1887.

Drilling commenced by the Pullinger brothers intersecting VCR and MR at depth within the borders of what 1898: became the Venterspost Gold Mine.

Using a magnetometer, Dr Rudolf Krahman discovered the vast gold deposits of the West Wits Line near 1931: Carletonville, including the mines known as Kloof and Driefontein Gold Mines.

1934: Shaft sinking commenced at Venterspost using the newly developed cementation process.

1936: Shaft sinking commenced at Libanon.

Crushing of ore began and first gold from the West Wits goldfield was poured at the Venterspost Gold 1939: Mine.

Exploration activities between 1933 and 1939 culminate in the registration of West Driefontein Mining 1945: Company on March 7, 1945. Sinking of the No 1 and 2 shafts commences (now the No D11 and D12 shafts).

1952: West Driefontein starts milling.

1968: Work commenced on Kloof’s Main shaft system in 1964 and the Kloof Gold Mine official opened in 1968.

East Driefontein starts production in 1972, with an expected life of 52 years, and is immediately among the 1972: lowest cost producers in South Africa.

1979: West Driefontein succeeds Crown Mines as the largest gold producer ever.

On July 1, 1981 East Driefontein Gold Mining Company Limited changes its name to Driefontein 1981: Consolidated Limited and West Driefontein becomes a wholly owned subsidiary of Driefontein Consolidated Limited but still manages its own lease area.

1987: Leeudoorn Gold Mine formed and shaft sinking commenced.

In September 1999 West and East Driefontein are formally amalgamated, pooling their resources to form one mine, Driefontein Gold Mine. 1999: Gold Fields wins control of the Driefontein Gold Mine by buying AngloGold Ashanti’s 21.5% shareholding. The deal makes Gold Fields the world’s second largest gold producer.

Formation of the consolidated Kloof Gold Mine with the amalgamation of the Venterspost, Libanon, 2000: Leeudoorn and Kloof Gold Mines.

On 30 August 2005, Driefontein officially pours the 100 millionth ounce of gold after some 53 years of 2005: production and the Kloof Gold Mine’s production reached a cumulative 70 million ounces of gold after 66 years of production.

2007: Driefontein and Kloof successfully converts their old order mining right to new order mining rights.

2009: TSF uranium models completed and included in Mineral Resource Statements of Driefontein and Kloof.

2010: Kloof and Driefontein management were combined to create the current Kloof-Driefontein Complex (KDC).

2011: Python plant commissioned during 2011.

Gold Fields: KDC Gold Mine – Technical Short Form Report 2011 22 13. Key technical staff

Post Incumbent Qualifications Years Key responsibilities Senior Vice President JJ Barnard NHD Metalliferous Mining and 27 Overall strategic direction, leadership and Head of Mine Manager’s Certificate and management Operations Senior Manager R Chaplin BSc Mining Eng (Hons) 21 Full operational management Operations KDC BU 1 Mine Manager’s Certificate Senior Manager T Uys Mine Manager’s Certificate, 23 Full operational management Operations KDC BU 2 Mine Overseer’s Certificate Senior Manager K de Lange NHD, M Eng. Mine Manager's 25 Full operational management Operations KDC BU 3 Certificate Senior Manager O O’Brien Mine Manager’s Certificate 27 Full operational management Operations KDC BU 4 Senior Manager K Stead NHD Metalliferous Mining and 28 Full operational management Operations KDC BU 5 Mine Managers Certificate Metallurgy Manager D Bester ND Extractive Metallurgy, 15 Metallurgical management KDC BU 6 BTech Extractive Metallurgy Mineral Resources J du Plessis MSc (Mining Eng), GDE Mining Eng. 32 Mine Planning, Mineral Resources and Manager KDC NHD Mine Surveying, MSCC Mineral Reserves and compilation of CPR Senior Manager H Engelbrecht Nat Diploma in Cost Accounting 30 Financial Reporting, Compliance Financial KDC Human Resource M Lancaster B Proc (Hons) and LLB 27 Human resources management Manager KDC Senior Engineering L Kotzé B Eng (Mech) and GCC for Mines and 27 Engineering, logistics, infrastructure Manager KDC West Works (Mech) and management. Senior Engineering B Potgieter National Technical Diploma. Electrical 33 Engineering, logistics, infrastructure Manager KDC East and Mechanical. GCC Electrical and and management. Mechanical KDC West 8 Shaft (Khomanane) KDC West

This Technical Short Form Report (“the Report”) contains information as at 31 December 2011 (“the Effective Date of this Report”). The statements and information set out in this Report speak only as of the Effective Date of this Report. Shareholders and other interested and affected parties are therefore urged to review all public disclosures made by Gold Fields after the Effective Date of this Report, as some of the information contained in the Report may have changed or have been updated. Gold Fields does not undertake any obligation to update publicly or release any revisions to statements and information set out in this Report to reflect events or circumstances after the Effective Date of this Report or to reflect the occurrence of unanticipated events, unless obliged to do so pursuant to law or regulation. In such event, Gold Fields does not undertake to refer back to any information contained in this Report.

23 “If we cannot mine safely, we will not mine” Gold Fields Safety Value

Registered Office South Africa: 150 Helen Road Sandown Sandton, 2196 Johannesburg Gauteng Private Bag X30500 Houghton, 2041 South Africa

Website: http://www.goldfields.co.za Telephone: +27 (0) 11 562 9700 Facsimile: +27 (0) 11 562 9838

Gold Fields: KDC Gold Mine – Technical Short Form Report 2011 1