5 December 2014 The Manager, Companies Australian Securities - - PDF document

5 December 2014 The Manager, Companies Australian Securities Exchange Companies Announcement Centre Level 4, 20 Bond Street Sydney NSW 2000 Dear Sir/Madam, OZ Minerals Carrapateena Presentation Please find attached OZ Minerals Carrapateena Pre-Feasibility Study Presentation to be made today at the SA Exploration and Mining Conference in Adelaide. The Presentation also includes the latest drill results for the Fremantle Doctor prospect. Yours faithfully, Paul Lynch Company Secretary

CARRAPATEENA PRE-FEASIBILITY STUDY

SA EXPLORATION AND MINING CONFERENCE BRETT TRIFFETT – MANAGER TECHNICAL SERVICES 5 DECEMBER 2014 There are very few projects like Carrapateena which offer the potential

• f multi-decade production at low operating costs, with the

demonstrated potential for further discoveries nearby, located relatively close to all necessary infrastructure and in one of the best and safest mining jurisdictions in the world.

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DISCLAIMER

This document has been prepared by OZ Minerals Limited (“OZ Minerals”) and consists of written materials/slides for a presentation concerning OZ

• Minerals. By viewing/attending this presentation, you agree to be bound by the conditions set out below.

No representation or warranty, express or implied, is made as to the accuracy or completeness of the information, contained in the presentation, or of the views, opinions and conclusions contained in this material. To the maximum extent permitted by law, OZ Minerals and its related bodies corporate and affiliates, and its and their respective directors, officers, employees, agents and advisers disclaim any liability (including, without limitation, any liability arising from fault or negligence) for any loss, liability or damage arising from any use of this material or its contents, including any error or

• mission therefrom, or otherwise arising in connection with it.

Forward Looking Statements This document includes certain forward looking statements. Forward looking statements are often characterised by words such as “plan”, “expect”, “project”, “intend”, “believe”, “anticipate”, “estimate” and other similar words, or statements that certain events or conditions “may”, “will” or “could”

• ccur. All statements, other than statements of historical fact included in this document, are forward looking statements. Such statements and

information in this document include, but are not limited to statements regarding mining parameters (including processing rates, and processing plant feed), concentrate production, estimates of capital costs and operating costs, internal rates of return, net present values, availability and development

• f infrastructure, life of mine estimates, annual mining and production estimates and targets, and revenue related assumptions such as commodity

prices and exchange rates. These statements represent current expectations and internal projections of the Company and are based on information currently available to it. There can be no assurance that these statements will prove to be accurate and actual results and future events could differ materially from those anticipated in the forward looking statements due to a number of factors, including levels of demand for commodities and market prices, the ability to produce and transport products profitably, the impact of foreign currency exchange rates on market prices and operating costs, operational problems, political uncertainty and economic conditions in relevant areas of the world, the actions of competitors and activities by governmental authorities, such as changes in taxation or regulation. Given these risks and uncertainties, undue reliance should not be placed on forward-looking statements which speak only as at the date of the

• presentation. Subject to any continuing obligations under applicable law or any relevant stock exchange listing rules, OZ Minerals does not undertake

any obligation to publicly release any updates or revisions to any forward looking statements contained in this document, whether as a result of any change in OZ Minerals’ expectations in relation to them, or any change in events, conditions or circumstances on which any such statement is based. Certain statistical and other information included in this document is sourced from publicly available third party sources and has not been independently verified. All figures are expressed in Australian dollars unless otherwise stated.

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RESERVE AND RESOURCE COMPLIANCE STATEMENTS

Carrapateena Mineral Resource estimate The information in this presentation that relates to Carrapateena Mineral Resource estimates as at 30 June 2013 is extracted from the report entitled “Annual Carrapateena Mineral Resource Update and Mineral Resource Explanatory Notes as at 30 June 2013” which was released to the market on 28 November 2013 and is available to view on at on www.ozminerals.com/operations/resources--reserves.html. The company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and, in the case of estimates of Mineral Resources, that all material assumptions and technical parameters underpinning the estimates in the relevant market announcement continue to apply and have not materially changed. The company confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement.. Carrapateena Ore Reserve estimate The information in this presentation that relates to Carrapateena Ore Reserve as at 15 August 2014 is extracted from the report entitled “Carrapateena Ore Reserves Explanatory Notes as at 15 August 2014” which was released to the market on 18 August 2014 and is available to view

• n www.ozminerals.com/operations/resources--reserves.html. The company confirms that it is not aware of any new information or data that

materially affects the information included in the original market announcement and, in the case of estimates of Ore Reserves , that all material assumptions and technical parameters underpinning the estimates in the relevant market announcement continue to apply and have not materially

• changed. The company confirms that the form and context in which the Competent Person’s findings are presented have not been materially

modified from the original market announcement. Khamsin Mineral Resource estimate The information in this presentation that relates to the Khamsin Mineral Resource as at 23 March 2014 is extracted from the report entitled “Initial 202 million tonnes at 0.6 percent Copper Resource for Khamsin and Khamsin Mineral Resources Statement as at 23 March 2014” which was released to the market on 26 May 2014 and is available to view on www.ozminerals.com/operations/resources--reserves.html. The company confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and, in the case of estimates of Mineral Resources, that all material assumptions and technical parameters underpinning the estimates in the original market announcement continue to apply and have not materially changed. The company confirms that the form and context in which the Competent Person’s findings are presented have not been materially modified from the original market announcement.

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• 18 month Carrapateena Pre-Feasibility Study completed and findings

released August 2014. Managed by OZ Minerals’ Technical Services Group. Over 20 Australian and international technical consulting firms engaged.

• Data room open and discussions with parties interested in partnering on

the project ongoing.

• New results released today highlight exploration success at – Fremantle

Doctor − Interval of more than 1 kilometre of mineralisation. − 1053.3m @ 0.56% Cu, 0.38g/t Au, from 1220.0m.* − Including a higher grade zone including 577m @ 0.84% Cu, 0.60g/t Au, from 1445.0m*

*See page 10, 11 and Appendices for full details and disclosures.

CARRAPATEENA - UPDATE

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PROJECT HIGHLIGHTS

LOW OPERATING COSTS, LONG LIFE, WELL LOCATED

Financial features1

• Projected net cash flow of $8.508 billion (including capital expenditure).
• Net present value of $1.146 billion post tax (at 8 percent real discount rate).
• Internal rate of return of 13 percent.
• Low C1 unit costs averaging US$0.49 cents per payable pound of copper.

Technical features

• Block caving technically feasible.
• Production of a high quality copper-gold concentrate with uranium below typical

penalty levels and no arsenic.

• Average annual production rate of 114,000 tonnes of copper, 117,000 ounces of gold

(at assumed steady state).

• Long mine-life of 24 years based only on Reserves.

Project features

• Low risk jurisdiction for mining.
• Good access to power, water, road, rail and ports.
• Climate and terrain suitable for mining.
• Supportive stakeholders and community.
• Approved Retention Lease in place for development of an exploration decline.

1 All figures in Australian dollars unless otherwise stated.

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PROJECT LOCATION

WELL PLACED WITH RESPECT TO REGIONAL INFRASTRUCTURE

• Proposed site turn-off from

Stuart Highway approximately 135 kilometres from Port Augusta.

• Proposed site access road from

Stuart Highway ~50 kilometres.

• Water to be supplied by borefield to

be built ~55 kilometres from plant.

• Power via connection to the grid –

50 kilometres transmission line to be built.

• Transport of concentrates in

containers.

• Haul road to be built to rail siding.
• Concentrate transport to Port

Adelaide via existing railway.

• Fly-in, fly-out service from Adelaide.

Conceptual site layout

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MINING METHOD

BLOCK CAVING

Lift One

Height: 500 metres Area: 106,500m2 Hydraulic Radius: 57 metres Cave layout: Teniente Drawbell spacing: 32m X 17m Undercutting: Post undercut Production rate: 12.4Mtpa Ore Reserves: 110Mt @ 0.9% Cu, 0.5g/t Au*

Underground operations

• Fleet of 16 load haul dump loaders.
• Two jaw-gyratory crushers per lift.
• Access via two declines - first developed via

tunnel boring, second by drill and blast.

• Production conveyor to surface.

Lift Two

Height: 500 metres Area: 97,400m2 Hydraulic Radius: 57metres Cave layout: Teniente Drawbell spacing: 34m X 17m Undercutting: Post undercut Production rate: 12.4Mtpa Ore Reserves: 160Mt @ 1.0% Cu, 0.4g/t Au*

* Refer to page 3 for Carrapateena Ore Reserve compliance statement

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PROCESSING PLANT

CONVENTIONAL PROCESSING

The metallurgical process proposed for Carrapateena is well-tested and consists of:

• Crushed run of mine ore stockpiling and reclaiming;
• Grinding, classification and pebble crushing;
• Rougher flotation;
• Rougher concentrate regrind;
• Scalping of rougher concentrate to final concentrate;
• Three stages of cleaner flotation;
• Concentrate filtration and storage;
• Tailings thickening and disposal.

PROCESS WATER DAM ORE STOCKPILE GRINDING PEBBLE CRUSHER FLOTATION CONCENTRATE FILTRATION CONCENTRATE STORAGE TAILINGS THICKENER REAGENTS

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CARRAPATEENA: KHAMSIN

DISCOVERY OF KHAMSIN IN 2012 DEMONSTRATES REGIONAL POTENTIAL FOR FURTHER DISCOVERIES

INITIAL MINERAL RESOURCE ESTIMATE AT KHAMSIN AS AT 23 MARCH 2014 ANNOUNCED IN MAY 2014*

Class Tonnes (Mt) Cu (%) Au (g/t) Ag (g/t) U (ppm) Density (t/m3) Cu (Mt) Au (Moz) Ag (Moz) Inferred 202 0.6 0.1 1.7 86 3.05 1.1 0.9 11

Note: Based on 30 holes (including eight wedged holes) drilled since the discovery in 2012.

* Refer to page 3 for Khamsin Mineral Resource compliance statement. Inferred Mineral Resource Section 6547900mN Looking North

Geological Domains

Bornite Dominant Zone Khamsin Breccia Complex

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CARRAPATEENA: FREMANTLE DOCTOR & SADDLE SIGNIFICANT INTERSECTIONS (PLAN VIEW)

The following drill holes shown on this view have been previously released: DD12FDR004 was previously released in 2012 Q4. DD13FDR005 was previously released in 2013 Q2. DD14FDR005W1 was previously released in 2014 Q3. DD14FDR007 was previously released in 2014 Q3. DD14FDR010 was previously released in 2014 Q3. *Intervals calculated using a 0.1% Cu cut-off grade with unlimited internal dilution. **Intervals calculated using a 0.4% Cu cut-off grade with unlimited internal dilution. True width of mineralisation is not known. Not all drill holes have been shown for clarity – see page 21, Appendices in accompanying JORC Table 1. 737,000 mE 741,000 mE 6,546,000 mN 6,543,000 mN

Residual Gravity

N

Main Copper Mineralised Zone at Carrapateena DD12FDR004

1 km

DD13FDR005 DD14FDR007 DD14FDR010 DD14FDR005W1 DD14FDR005W2 *1053.3m @ 0.56% Cu, 0.38 g/t Au, from 1220.0m

including

**577.0m @ 0.84% Cu, 0.60 g/t Au, from 1445.0m Section 739515mE

• Significant new

results from Fremantle Doctor.

• Interval of more than

1 kilometre of mineralisation.

• 1053.3m @ 0.56% Cu,

0.38g/t Au, from 1220.0m.

• Including a higher

grade zone of 577m @ 0.84% Cu, 0.60g/t Au, from 1445.0m.

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CARRAPATEENA: FREMANTLE DOCTOR LATEST DRILL RESULTS (SECTION VIEW)

Section 739515mE Looking West

*1053.3m @ 0.56% Cu, 0.38 g/t Au, from 1220.0m

Depth to basement approximately 570 m

**577.0m @ 0.84% Cu, 0.60 g/t Au, from 1445.0m *201.0m @ 0.87% Cu, 0.89 g/t Au, from 1232.0m

Please note: Section 739515mE is clipped with a window of +/-125m. The following drill holes have been omitted from this section view as they have been previously released. The drill hole information for these holes is included in Appendix 1 to this announcement: DD12FDR003 was previously released in 2012 ASX Q4. DD14FDR006 was previously released in 2014 ASX Q2. FD001 and FD002 was drilled in 2007 by Teck Cominco Australia The following drill holes shown on this section view have been previously released: DD12FDR004 was previously released in 2012 Q4 and 2014 Q2. DD13FDR005 was previously released in 2013 Q2. DD14FDR005W1 was previously released in 2014 Q3. DD14FDR007 was previously released in 2014 Q3. DD14FDR010 was previously released in 2014 Q3. *Intervals calculated using a 0.1% Cu cut-off grade with unlimited internal dilution. **Intervals calculated using a 0.4% Cu cut-off grade with unlimited internal dilution. True width of mineralisation is not known. Not all drill holes have been shown for clarity – see page 21, Appendices in accompanying JORC Table 1

DD12FDR004

*914.0m @ 0.44% Cu, 0.27 g/t Au, from 920.0m

• Recent significant

intervals follows other encouraging results.

• Drilling to continue to

target high grade zone.

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SUMMARY

LOW OPERATING COSTS, LONG LIFE, WELL LOCATED

• Pre-Feasibility study completed to a very high standard.
• Deposit suitable for block caving – in line with current global operations and

developments.

• High quality copper concentrate.
• Projected net cash flow of $8.508 billion.
• Net present value of $1.146 billion post tax (at an 8 percent real discount rate).
• Very low operating costs of US$0.49 cents per payable pound.
• Long life.
• Low risk mining jurisdiction.
• Well located with respect to regional infrastructure, terrain and climate.
• Upside opportunities.

APPENDICES

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Hole Name Total Depth East (MGA) North (MGA) RL (Local) Inclination Azimuth (MGA) From (m) To (m) Length (m) Cu % Au g/t DD14FDR005W2* 2273.3 739634 6544994 5085

• 67.4

338.0 1220 2273.3 1053.3 0.56 0.38

DRILL HOLE INFORMATION – JORC TABLE 1

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Section 1 Sampling Techniques and Data

Criteria Comments Sampling techniques All basement samples consist of diamond drill core (NQ2 and HQ) cut with an automatic core saw and sampled as half core, except for field duplicates, where quarter core was sampled. The method of sampling is considered to be of an acceptable quality for the reporting of Exploration Results. Predominantly 1m samples were obtained, but lengths range from 0.5m to 1.5m where adjusted to geological or major alteration

• boundaries. All available basement drill core was sampled.

Entire samples were crushed then pulverised to a nominal 90% passing 75 microns. The resulting pulps were analysed using a variety of methods which included multi acid digest with ICP-OES determination for Cu, and fire assay (40g charge) with AAS finish for Au. Sub-sampling, sample preparation, assay methods and assay quality are discussed in the criterion Sub-sampling techniques and sample preparation below. Drilling techniques Drill holes were diamond cored from surface using a combination of PQ, HQ and NQ2 core sizes. Holes were inclined and core was

• riented using an ACT core orientation tool.

Drill sample recovery Length-based core recovery was measured from reassembled core for every drill run. The data were recorded in a SQL Server database via a GBIS front end. Average core recovery was high with more than 99 percent recovered through the reported intersections. The style of mineralisation and drilling methods employed lead to very high sample recovery, so no further effort was considered necessary to increase core recovery. Scatterplots of grade and core recovery do not suggest any relationship. The very high core recovery means that any effect of such losses would be negligible if such a relationship were to exist. Logging All core samples were geologically logged by geologists and are considered to have been logged in appropriate detail to support Mineral Resource estimation, mining studies and metallurgical studies. Detailed geotechnical logging was not carried out for the reported drill holes, however RQD and geological structural data were collected for all core drilled. Core logs were qualitative and quantitative in nature. Lithology and alteration were logged qualitatively; mineralisation and structure were logged quantitatively. Core was photographed both dry and wet after metre marking and orientation. All recovered core (100 percent) from the relevant intersections was geologically logged.

JORC 2012 TABLE 1

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Section 1 Sampling Techniques and Data

Criteria Comments Sub-sampling techniques and sample preparation All sampled core was cut with an automatic core saw in a consistent way that preserved the bottom of hole reference line, where

• present. Half core was used for normal sampling and quarter core for field duplicates. Samples were mostly 1m in length, but also

ranged from 0.5m to 1.5m if adjusted to geological or major alteration boundaries. Only core samples were used in basement. Sample preparation included drying, crushing, and pulverising in full to a nominal 90% passing 75 microns. This is considered industry standard for this style of mineralisation. Controlled copies of SOPs (Standard Operating Procedures) and sign-offs exist for all sampling steps, and all staff were adequately trained in these. Checks were made by geologists on sampling prior to loading data into the database. Sample representativity was monitored by taking field duplicates, lab coarse crush, and pulp duplicates every 50 samples. Sizing data was collected for one in every 20 pulverised samples by the laboratory analysing the samples. Analysis of these results indicates that the sampling is representative. Analysis of duplicate data from a variety of scales, from quarter core to crushed core to pulp duplicates, indicates the sample sizes are appropriate to the grain size of the material being sampled. Quality of assay data and laboratory tests All samples were assayed at Bureau Veritas Adelaide Laboratory (Amdel). Copper grades were determined using a multi-acid digest with ICP-OES finish. Gold grades were determined by 40g fire assay with AAS finish. Review of QAQC results confirms that the quality of the data is acceptable. Geophysical measurements of magnetic susceptibility and radioactivity were taken on drill core but these data have not been used to determine any element concentrations. Assay data quality was monitored through submission of certified standards and blanks every 25 samples, quarter core field duplicates and lab coarse crush and pulp duplicates every 50 samples. Analysis of results from these samples showed that levels of bias, precision and contamination are within limits that are considered acceptable.

JORC 2012 TABLE 1

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Section 1 Sampling Techniques and Data

Criteria Comments Verification of sampling and assaying Documented verification of significant intervals by independent personnel has not been done, however the intersections have been verified by alternative personnel within OZ Minerals and the tenor of Cu is visually predictable. No twin holes have been drilled because the focus to date has been on finding high grade mineralisation. Primary data is stored both in its source electronic form, and, where applicable, on paper. Assay data is retained in both the original certificate (.pdf) form, where available, and the text files received from the laboratory. Core logging was recorded directly into the database using Toughbooks. Core length measurements for recovery were made on paper prior to entry into the database. Different user profiles and security settings exist to minimise the possibility of inadvertent modification of data. Assay data were reviewed visually to confirm that reported values are reasonable. Where assay results are below detection limit, a value of half the detection limit has been used. No other adjustments were made to assay data. Location of data points All collar locations were determined by DGPS, or GPS for easting and northing, projected onto a digital terrain model (DTM) to determine elevation. All drill holes had magnetic down hole surveys taken at nominal 30m intervals using digital Reflex EZ-Trac equipment. Completed holes were gyro surveyed using a conventional Reflex Gyro tool. The collar reference azimuth for most holes was calculated using a "best-fit" with EZ-Trac (magnetic) surveys in non-magnetic ground in the cover sequence. To minimise the effect of drift of azimuth measurements with the conventional gyro, an average of multiple runs was normally used, typically four runs. The difference in interpreted volume of mineralisation due to drill hole position uncertainty is considered to be immaterial for the purpose of reporting Exploration Results or estimating Mineral Resources. The grid is MGA94 zone 53 south. Local elevations have been used, where 5000mRL is equal to Australian Height Datum. A DTM was flown by OZ Minerals in April 2012. The accuracy of the 2012 DTM is considered to be acceptable for the determination

• f collar elevation for the reported Exploration Results.

JORC 2012 TABLE 1

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Section 1 Sampling Techniques and Data

Criteria Comments Data spacing and distribution Drill holes at Fremantle Doctor were drilled in a variety of directions and the spacing between holes is not uniform. Drill hole locations are shown in Slide 21 in the accompanying presentation. At Fremantle Doctor, holes have been drilled in different directions so the hole spacing varies widely depending on the location. The closest distance between any two neighbouring significant intersections reported to date varies from 23m (between DD13FDR005 and DD14FDR005W1) to approximately 290m (between DD14FDR008 and DD14FDR009). It should be noted that these are the closest distances, the holes generally diverge with depth and the mean distances between significant intervals are larger than this. No new or updated Mineral Resource or Ore Reserve estimate has been reported in this release. No physical compositing of samples has occurred. Orientation of data in relation to geological structure At Fremantle Doctor, the current, preliminary interpretation of the mineralisation is a sub-vertical body trending to the NNE/SSW dipping steeply to the WNW. The reported drilling occurs in an East, South-East and North orientation and intersects the interpreted structure of copper mineralisation obliquely. The orientations of drill holes are sufficiently varied that drilling orientation is not considered to have introduced a significant sampling bias. Sample security Samples were sent via road transport from Carrapateena Exploration Site to the laboratory in Adelaide. Despatches listing samples were sent electronically to the laboratory. Any discrepancy between listed and received samples was communicated back to site staff for resolution. Audits or reviews An external audit of Bureau Veritas Adelaide laboratory was undertaken by ioGlobal in October 2012. OZ Minerals geologists inspected Bureau Veritas Adelaide laboratory during April 2014. Minor issues were noted on both the audit and inspection but were not considered to be material overall. Drilling and core processing at Fremantle Doctor is conducted using the same facilities and protocols as for the Carrapateena

• deposit. AMC Consultants Pty Ltd undertook a review of the data collection and sampling procedures during an audit of the

Carrapateena Mineral Resource estimate between 30 September and 3 October 2013. AMC formed the view that the data collection procedures were industry standard practice, with the exception of the monitoring of the quality control samples, which did not appear to be being undertaken on a batch by batch and continuous basis. Since AMC’s audit, quality control data has been reviewed more frequently, and systematic monitoring of quality data occurs prior to the release of Exploration Results in any case.

JORC 2012 TABLE 1

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Section 2 Reporting of Exploration Results

Criteria Comments Mineral tenement and land tenure status The Fremantle Doctor prospect is located in South Australia in Exploration Licence 4903 which is held by OZ Minerals Carrapateena Pty Ltd (34%) and OZM Carrapateena Pty Ltd (66%), both wholly owned subsidiaries of OZ Minerals Limited. The tenement sits within the Kokatha Uwankara Native Title Claim. EL4903 is currently in good standing. No known impediments exist to obtaining a licence to operate in the area. Exploration done by other parties In 2007 under a joint venture between RMG Services Pty and Teck Cominco Australia Pty Ltd, two holes were drilled on the northern margin of the Fremantle Doctor prospect (FD001 and FD002). They intersected altered granite-hematite breccias with patchy chalcopyrite mineralisation and altered granite with no observed mineralisation respectively. Geology The Fremantle Doctor prospect is located within the Olympic copper gold (Cu-Au) Province on the eastern edge of the Gawler Craton. Mineralisation is hosted within Donington Suite granite and unconformably overlain by approximately 530m to 570m of Neoproterozoic sediments. Mineralisation and alteration is in the form of that seen at other large South Australian iron oxide copper gold (IOCG) deposits including Prominent Hill, Carrapateena and Olympic Dam. Drill hole Information Refer to Table on page 14. All information material to the understanding of the Exploration Results has been included. Drill hole information for holes shown on the plan and section slides which are not included in Table on page 14 have been previously reported. Data aggregation methods All drill hole intervals referred to in this announcement are length-weighted and are calculated using the following cut-

• ff grades:
• 0.1% Cu delimiting cut-off grade with unlimited internal dilution and no adjustments to high-grade samples.
• 0.4% Cu delimiting cut-off grade with unlimited internal dilution and no adjustments to high-grade samples.

High grade copper intervals within broader low grade intervals are reported as included using 0.4% Cu delimiting cut-off grade with unlimited internal dilution and no adjustments to high-grade samples. Metal equivalents are not used for reporting of Exploration Results.

JORC 2012 TABLE 1

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Section 2 Reporting of Exploration Results

Criteria Comments Relationship between mineralisation widths and intercept lengths At Fremantle Doctor, preliminary modelling indicates the mineralisation envelope is a massive body dipping steeply to the west-northwest with localised high grade zones having uncertain orientations. The interpreted envelope starts approximately 530m below the surface. Envelope boundaries are unknown at this stage as they are not constrained by many drill holes. The current modelling for the Fremantle Doctor prospect is still preliminary, and the angle at which mineralisation has been intersected is not known. Mineralisation at Fremantle Doctor has been reported as down hole lengths as the true width is not known. Diagrams Refer to Slide 10, 11 and 21 in the accompanying presentation. Balanced reporting All significant Exploration Results at Fremantle Doctor are reported. Drill holes which have been omitted from slide 10 to 11 have been previously reported. The drill hole information for these holes is included on Slide 21. Other substantive exploration data There is no other material exploration data at this time. Further work Further drilling is currently ongoing at the Fremantle Doctor prospect to increase the confidence in location of mineralisation boundaries and to identify any high-grade zones. Areas of possible extensions are currently being reviewed.

JORC 2012 TABLE 1

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Residual Gravity Main copper mineralised zone at Carrapateena Hole ID Easting Northing

CAR037 738927 6544406 DD12FDR003 739202 6545499 DD12FDR004 739648 6545005 DD13FDR005 739634 6544994 DD14FDR005W1 739634 6544994 DD14FDR005W2 739634 6544994 DD14FDR006 739204 6545498 DD14FDR007 739066 6545745 DD14FDR008 738825 6545106 DD14FDR009 739020 6545294 DD14FDR010 739063 6545744 FD001 739670 6545563 FD002 739619 6545788

HOLES DRILLED AT FREMANTLE DOCTOR TO DATE

COMPETENT PERSON’S STATEMENT The information in this presentation that relates to Exploration Results in respect to the Fremantle Doctor Prospect is based on and fairly represents information and supporting documentation compiled by Mr Anthony Houston BSc, a Competent Person who is a member of the Australian Institute of Geoscientists. Mr Houston is a full-time employee of OZ Minerals Limited. Mr Houston is a shareholder of OZ Minerals and is entitled to participate in the OZ Minerals Long Term Incentive Plan. Mr Houston has sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Houston consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.