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OZ Minerals Limited

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FY2017 Annual Report · OZ Minerals Limited
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A modern mining company 

22 February 2018 

The Manager, Companies 
Australian Securities Exchange 
Companies Announcement Centre 
20 Bridge Street 
Sydney NSW 2000 

Dear Sir/Madam, 

OZ Minerals 2017 Annual and Sustainability Report  

Directors’ Report 

OZ Minerals today announced its results for the full year ended 31 December 2017. Attached is the 2017 
Annual and Sustainability Report including: 
• 
• 
• 
• 

Remuneration Overview and Report 

FY17 Financial Report 

Sustainability Report 

Sincerely,  

Michelle Pole 

Company Secretary and Senior Legal Counsel   

OZ Minerals Limited  |  ABN: 40 005 482 824  |  Level 1, 162 Greenhill Road, Parkside South Australia 5063 
T: +61 8 8229 6600  |  F: +61 8 8229 6601  |  info@ozminerals.com  |  www.ozminerals.com 

 
 
 
 
 
 
 
 
 
 
 
 
 
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2017
Annual and  
Sustainability 
Report

 
 
 
 
 
 
 
 
 
 
 
C o n t e n tS

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0 1

Contents

2017 Snapshot 

Message from the Chairman and CEO 

Operating review 

Company Strategy 

Prominent Hill 

Carrapateena 

West Musgrave 

Exploration and Growth 

Governance 

Directors’ Report 

Financial Review 

Remuneration Overview and Report 

Sustainability Report 

Mineral Resources and Ore Reserves 

Financial Report 

Shareholder Information 

02

05

06

06

08

10

12

13

14

19

29

37

57

81

91

131

Cautionary statement

The sustainability section of this report contains 
forward-looking statements that relate to our activities, 
plans and objectives. Actual results may significantly 
differ from these statements, depending on a variety 
of factors. The term ‘material topic’ is used for 
voluntary sustainability reporting to describe topics 
that could affect our sustainability performance. By 
their nature, forward-looking statements involve risk 
and uncertainty because they relate to events and 
circumstances that will occur in the future and may  
be outside OZ Minerals' control. Given these risks  
and uncertainties, undue reliance should not be  
placed on forward looking statements.

0 2

112,008

tonnes of copper produced

126,713

ounces of gold produced

C OPP ER PRICE

S NA P SHO T

$/lb
4.5

3.5

2.5

1.5

US$/lb

A$/lb

Jan 13

Jan 14

Jan 15

Jan 16

Jan 17

Jan 18

GOL D  PRICE

$/oz
2,000

1,600

1,200

800

US$/oz

A$/oz

Jan 13

Jan 14

Jan 15

Jan 16

Jan 17

Jan 18

 / Copper guidance achieved for third consecutive  

year and gold guidance exceeded

 / Cost performance at the bottom of the annual  

guidance range

 / Cash balance lifted to $729 million after investment  

into Carrapateena and ore inventory

 / Prominent Hill mine life further extended to 2029.  
18 per cent increase in underground ore Reserve 
provides for expected underground production rate  
of 3.5–4 Mtpa from 2019 through to 2029

 / Carrapateena construction progressing on schedule  

and budget

 / West Musgrave in pre-feasibility with a parallel 
exploration program looking at district potential

 / two new international earn-in agreements and one  

new Australian agreement established, taking pipeline 
of potential growth opportunities to seven

 / Port Augusta selected as preferred location for 

progressing Concentrate treatment Plant studies.

ANNUAL AND SUSTAINABILITY REPORT 20172 0 1 7   S nA P S Hot

0 3

$1,023m

revenue

  operating Mine 

   Mine in construction

  Study Phase 
  exploration 

NT

Eloise

OLD

WA
West Musgrave

Mount Woods

Coompana

SA

Prominent Hill

Carrapateena
Punt Hill

NSW

AL L AS SETS

  Prominent Hill

 / open pit and underground operations

 / Copper concentrate (containing gold and silver)

  Carrapateena
 / Project in construction

 / Commissioning in Q4 2019

 / Copper concentrate (containing gold and silver)

  West Musgrave

 / With Cassini Resources Limited

 / Pre-feasibility study underway

 / Commercialisation of copper/nickel  
magmatic sulphide mineralisation

  Eloise

 / With Minotaur exploration Limited

 / targeting Cannington style lead/zinc/silver 
mineralisation and high grade copper/gold 
mineralisation

  Punt Hill 

 / With Red Metal Limited 

 / targeting IoCG mineralisation 50km  

south of Carrapateena project

  Mount Woods

  Oaxaca

 / With Minotaur Exploration Limited

 / With Acapulco Gold Corp

 / Targeting brownfield copper resources  

around Prominent Hill

  Coompana

 / targeting copper/zinc VHMS  
systems in southern Mexico

  Alvito 

 / With Mithril Resources Ltd

 / With Avrupa Minerals Ltd

 / targeting copper/nickel magmatic  

 / targeting shallow IoCG mineralisation  

sulphide mineralisation

in southern Portugal

ACT

VIC

TAS

MEXICO

Oaxaca

FULL YEAR FINANCIAL RESULTS S UMM ARY

PORTUGAL

Group revenue

Underlying eBItDA

net depreciation and amortisation

Underlying eBIt

net financing income

Income tax expense

Underlying nPAt

non-underlying items net of tax

nPAt

Dividends per share (cents)

2017  
$m

1,023.1

539.4

(218.7)

320.7

8.7

(98.3)

231.1

–

231.1

20 

2016  
$m

822.9

373.8

(208.7)

165.1

9.0

(39.8)

134.3

(26.5)

107.8

20

Alvito

Photo: Carrapateena access decline progress // November 2017

0 4

2017 FINANCIAL AND OPERATIONAL HIGHLIGHTS

 / $1,023m revenue achieved

 / Phase 1 construction of Carrapateena 

 / $231.1m statutory net profit after tax

 / $729m cash balance with no debt

 / earnings per share: 77.4 cents

 / total dividends for 2017: 20 cents per share, 

fully franked

 / third consecutive year copper production  
and cost guidance met at Prominent Hill

 / Carrapateena native title Mining  

Agreement signed with the Kokatha 
Aboriginal Corporation

commenced

 / West Musgrave advanced to pre-feasibility 
study as project indicates economic viability

 / expanding portfolio of exploration projects 

with two international earn-in joint ventures, 
in Mexico and Portugal, added to our pipeline 
and a further earn-in established near the 
Carrapateena project.

ANNUAL AND SUSTAINABILITY REPORT 2017M eS S A Ge   fRoM tHe   CH A I R M An  

AnD  Ce o

0 5

Message from the Chairman and CEO

Board renewal program 
This phase of the Board renewal program is 
drawing to a close. In 2017, Neil Hamilton 
stepped down as Chairman after seven years 
on the Board. Paul Dowd also stepped down 
after eight years of service. Charles Lenegan 
is to retire at the Annual General Meeting 
in April 2018 after eight years’ service. 
We thank Neil, Paul and Charles for their 
valuable support and guidance. 

Rebecca McGrath, who has been a director 
of OZ Minerals since 2010, was appointed 
Chairman. Three new non-executive directors 
– Tonianne Dwyer, Peter Tomsett and Peter 
Wasow – were appointed during the year, 
and together they bring a depth of technical, 
operational and senior management 
experience from the resources sector and 
other industries.

Shareholder returns
The Board’s current policy is to target a 
minimum dividend payment of 20 per cent 
of net cash generation, while maintaining a 
strong balance sheet for investments such as 
Carrapateena, buyback or other investment 
opportunities. As a result of another strong 
year, the Board declared a total, fully-franked 
dividend for 2017 of 20 cents per share, 
made up of a half year payment of six cents 
per share and an end-year payment of 
14 cents. 2017 earnings per share totaled 
77.4 cents.

2018 priorities
The outlook for copper is optimistic with 
demand coming from traditional uses for 
copper such as infrastructure and transport. 

New uses for copper, stemming from a 
global focus on the environment, also 
contribute to the projected growth in 
demand. These new uses include electric 
vehicle batteries and cabling, renewable 
energy generation and storage, and the  
need for efficient and reliable transmission  
of power; all of which require high usage  
of copper by weight. These innovations 
with a need for copper, combined with a 
projected global mine supply shortfall due 
to declining head grades and a lack of new 
mines being developed in the coming years, 
suggest that copper will remain a sought 
after commodity.

Dear Shareholders,

2017 was a positive year for OZ Minerals, 
achieving or exceeding our production 
and cost guidance, advancing our growth 
strategy and growing our cash balance 
to $729 million. This positions us strongly 
to support our growth strategy whilst 
rewarding our shareholders with a 14 cents 
final dividend. These achievements were 
supported by our lean and agile approach 
to delivery, our focus on building a culture 
of innovation, and our capacity to work 
together with our stakeholders to create 
value for all.

Growing the company  
and delivering to strategy
Prominent Hill demonstrated its ability to 
deliver reliable and predictable results as 
it achieved annual production and cost 
guidance for the third consecutive year. 
Its mine life was further extended to 2029 
as a result of an 18 per cent increase in 
underground ore reserves, underlining its 
pedigree as a long life asset. 

A financially robust Carrapateena copper–
gold project progressed to construction and 
the West Musgrave copper–nickel project 
advanced to pre-feasibility. 

These developments and the broader 
execution of our growth strategy will  
see OZ Minerals become a multi-mine 
company within the next five years and  
allow us to leverage a more robust 
foundation to grow shareholder value.

Innovation, safety and community
This year we pursued innovation to drive 
results. We took inspiration from within  
and outside our industry to learn lessons  
in technology and culture that we could 
adapt and apply. 

There was marked progress in safety 
performance at Prominent Hill during the 
year, after we implemented a number of 
safety improvement programs. Our overall 
total recordable injury frequency (TRIF)  
rate was 6.39 compared to 6.8 in 2016.  
We continue to strengthen our approach  
to safe work.

We completed a Native Title Mining 
Agreement with the Kokatha Aboriginal 
Corporation and the Partnership 
Management Committee is meeting 
quarterly to ensure progress is made on  
our commitments, including employment 
and business opportunities, as the 
Carrapateena project progresses. 

Looking ahead, we will continue to deliver 
value for shareholders, enable growth and 
position ourselves well to capitalise on the 
encouraging macroeconomic sentiment 
through:

 / strengthening our reputation through  

the reliable delivery of the Prominent Hill  
mine plan

 / on-budget and on-schedule construction  

of Carrapateena 

 / completing the West Musgrave  

pre-feasibility study

 / continuing to strengthen our approach  

to safe work

 / enhancing organisational culture by 

leveraging agility, lean operations and  
an innovative mindset 

 / maintaining our future growth pipeline 
by increasing the number of exploration 
and study opportunities, and seeking 
acquisitions that provide foot-holds  
into priority mineralised belts

 / drilling of the Khamsin and Fremantle 

Doctor mineralised systems and developing 
a Carrapateena ‘phase two’ expansion plan

 / simplifying our governance systems 

 / maintaining our focus on fostering 

innovation and collaboration through  
the business.

Finally, we would like to close by thanking 
our employees, community and contract 
partners, and other stakeholders for their 
contribution in the past year. Their effort, 
support and interest are vital to the success 
of your company. Thank you.

Rebecca McGrath 
Chairman 
Adelaide, 22 February 2018

Andrew Cole 
Managing Director and CEO 
Adelaide, 22 February 2018

 
 
0 6

Company Strategy

In 2017, we made major progress towards 
our vision of becoming a copper-core, 
global modern mining company that 
delivers superior value with multiple 
operating assets and a diverse exploration 
and project pipeline. Our alignment with 
our vision and strategy translated into 
performance and achievement.

Lean business
Running a lean and agile business allows us to improve productivity 
and channel the right resources to support growth and innovative 
thinking. We support this way of working through simplified systems, 
processes and technology, and we continuously seek ideas from our 
people to improve the way we operate. 

In 2017, Prominent Hill delivered at the top end of production 
guidance and at the bottom of cost guidance, enabling us to take 
advantage of improved copper prices and grow revenue to over  
$1 billion.

Another example of lean business is our agile project evaluation at 
Carrapateena. This enabled the mine’s design to be updated during 
the feasibility study to relocate all underground development to 
footwall host rocks in the south-west from the north-east. This move 
allows the ore body to be reached earlier and for infrastructure to be 
established completely outside of the mineralised zone. 

Copper core
Our focus on a copper core means we leverage our existing 
capabilities to promote copper as a key driver of earnings and 
opportunistically target base metal assets. 

Prominent Hill and Carrapateena are examples of projects that are 
well aligned to our strategy, with both assets producing some of the 
highest grade copper concentrates in the world. West Musgrave also 
demonstrates how we can apply our in-house competencies, skillsets 
and cumulative knowledge to other base metals.

Safe
Our overall total recordable injury frequency (TRIF) rate is 6.39. We 
achieved a 41% TRIF reduction at Prominent Hill. We implemented 
several improvement initiatives at Prominent Hill in 2017 including  
a site Leadership Development Program to promote safety leadership 
and a changed mindset of the importance of safety outcomes.  
We also recorded 104 consecutive days injury free during the year.

R N   M INING CO

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A M O D
Lean busin

VALUE
CREATION

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i n e

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M u ltiple assets

H o w we work to

ANNUAL AND SUSTAINABILITY REPORT 2017 
E

A M O D

Lean busin

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R N   M INING CO

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VALUE
CREATION

r
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M u ltiple assets
H o w we work to

Capital  di s c i p l

i n e

C oM PAn y   S tR A t eGy

0 7

Customer focus
Our proposed, innovative Concentrate Treatment Plant (CTP) would 
enable the secondary processing of copper concentrate to remove 
iron and other impurities, increasing the percentage of copper in 
concentrate from between 30 and 40 per cent to between 55 and  
60 per cent. 

The CTP could be a potential strategic differentiator for OZ Minerals 
that would allow us to produce high quality concentrate for our 
customers against a backdrop of increasing impurities and decreasing 
global concentrate grades in the copper concentrate market. 

Port Augusta in South Australia has been identified as the preferred 
location. Study work has also included geotechnical investigations, 
cultural heritage and environmental works. Studies and test work  
are continuing in 2018. 

Multiple assets
Exploration and building a pipeline of growth and exploration 
opportunities are important parts of our growth strategy. Our 
approach to exploration sees us partnering with highly-regarded 
explorers with potential opportunities that suit our portfolio. 

We’ve been working hard on our exploration growth pipeline  
and strategic projects with the aim of becoming a multi-asset 
company. 

We began development on Carrapateena, our copper–gold  
project north of Port Augusta in South Australia. 

West Musgrave also progressed from an exploration project to a  
pre-feasibility study (PFS). This followed positive results from the 
further scoping study that showed an investable base case for  
Nebo-Babel and a potential upside through resource conversion.  
The focus of the PFS is on regional potential as West Musgrave,  
much like Carrapateena, is a new mineral province with attractive 
near-mine and district opportunities. 

How we work together
How we work together – how we deliver results – is as important to 
us as what we deliver. A strong set of behavioural principles helps us 
to build a culture that embraces change and allows us to operate in 
an agile way and set up for the next phase of our growth journey. 

In 2017, we made the decision to relocate our head office to the 
Adelaide Airport business district. The move, scheduled for mid-
2018, reflects the next phase of our growth and will provide a 
modern work environment that will improve collaboration.

Capital discipline
One of the ways we leverage capital discipline is to look at where 
capital can be used efficiently to develop projects and operate assets. 

We adopted an early contractor involvement (ECI) model with the 
Carrapateena project to further accelerate construction readiness, 
reduce project delivery risk, and drive cost and schedule certainty. 
This model enabled us to proactively manage risk, particularly in 
relation to minimising contract or contractor interfaces,  
maintaining capital discipline and leveraging the specialist capability  
of contractors. 

We are continually looking for opportunities to control costs.

 
0 8

Prominent Hill 

Prominent Hill is a copper–gold-silver mine 
located 130 km south-east of Coober Pedy  
in South Australia, with a mine life that 
currently extends to 2029. 

Prominent Hill consistently and reliably 
delivers results. It met copper and gold 
production and cost guidance for the third 
consecutive year in 2017 and generated 
$452 million in free cash. 

Highlights for 2017 included:
 / achieving annual copper and gold guidance 

despite severe weather early in the year

 / improved safety performance with a 41% 

reduction in TRIF

 / entering into an 18-month power purchase 
agreement to provide price certainty for 
Prominent Hill’s power supply until the end 
of 2018 

 / breaking through the second permanent 
access decline from the underground 
mine into the open pit, which yielded 
improvements to underground operations, 
enhanced productivity and reduced costs

 / partnering with technology specialists  

to evaluate advanced analytics and machine 
learning to optimise plant effectiveness 

 / achieving the milestone of mining one 
million tonnes of ore from the open pit 
since it began its life in 2009.

Prominent Hill’s transition to an 
underground-only mining operation steadily 
progressed through the year. The open pit 
closure has been brought forward to the 
first quarter of 2018 as we implemented 
opportunities to accelerate open pit mining. 
In 2017, decommissioned equipment from 
the open pit was progressively removed 
from site and open pit activities began 
transitioning to the underground team.

Safety is an ongoing priority at Prominent Hill 
and we implemented several improvement 
strategies during the year. These 
improvements have significantly reduced 
Prominent Hill’s TRIF rate and we set a new 
site record of 104 days recordable injury free. 

The Prominent Hill mine 
has achieved copper 
guidance for three 
consecutive years and 
continues to generate 
value through strong 
operational discipline and 
the delivery of consistent, 
safe, cost effective 
production.

Our focus for 2018 is on:
 / enhancing operational risk management 

with a focus on leadership and safe 
behaviours

 / maintaining strong operating discipline  
to reliably deliver results in the bottom  
half of the cost curve

 / continuing to extend mine life year  

on year

 / completing the demobilisation of the 

open pit and ensuring an uninterrupted 
transition to underground-only production 

 / completing work on waste dump 

rehabilitation as part of a continuous  
mine closure strategy

 / establishing increased opportunities to link 
local businesses and the traditional owners 
of the land where the Prominent Hill mine 
is based.

Safety improvement  
initiatives included:
 / focusing on safety behaviour in the 

underground 

 / implementing new safety, health, 
environment and community  
performance standards

 / embedding a Critical Risk Observation 
program into ours and our contractors 
work practices across site. Critical risks 
and their controls were derived from an 
extensive risk assessment process 

 / establishing an updated Principle Hazard 
Management Plan for Vehicle Operations 
with higher standards for equipment,  
road design and operator requirements 

 / continuing programs to reduce 

musculoskeletal injury; revising the 
occupational hygiene management plan; 
and establishing an improved targeted 
monitoring program

 / improving access and response to medical 
emergencies on site, with the merger and 
relocation of the Medical and Emergency 
Response facility.

Power was a focus this year. In mid-2017, we 
entered into an 18-month power purchase 
agreement, securing price certainty to the 
end of 2018. Energy supply and transmission 
options are currently in design and a range 
of energy saving programs are underway.

In August 2017, BHP advised it intended to 
end Prominent Hill’s access on 30 August 
2020 to BHP’s transmission line from 
Davenport to Olympic Dam. OZ Minerals 
power strategy will be announced to the 
market in Q1 2018 and will encompass 
approaches to power transmission.

The year also saw Prominent Hill’s mine  
life further extended to 2029, following an 
18 per cent increase in underground ore 
reserve to 39 Mt. Our aim is to continue 
extending Prominent Hill’s underground  
mine life year on year. An estimated 80 Mt  
of underground mineral resource has not 
been converted to ore reserve and this  
could further extend mine options. 

Underground mining, combined with 
stockpile processing, will maintain the  
plant at full capacity to 2023. With open  
pit related costs already incurred, we  
expect to realise substantial cash flow 
through this period.

(a)  Please refer to the Mineral Resources and Ore Reserves 

section (page 81) for full disclosure.

ANNUAL AND SUSTAINABILITY REPORT 2017o PeR A tInG  R eV IeW

0 9

112,008

tonnes of copper produced

126,713

ounces of gold produced

OVE RVIEW

Location: 650 km north-west of  
Adelaide, 130 km south-east of the  
town of Coober Pedy

Product: Copper concentrate  
(containing gold and silver)

Mining method: open pit and 
underground mine, transitioning to 
underground-only mine in Q1 2018

Processing method: Conventional 
crushing, grinding and flotation

Resources: estimated at 140 Mt @ 1.2% 
copper, 0.5 g/t gold and 3 g/t silver(a)

Reserves: 74 Mt @ 1.0% copper, 0.6 g/t 
gold and 3 g/t silver (730 kt copper and  
1.5 Moz gold)(a)

1 0

Carrapateena

Phase one construction of the Carrapateena 
project began in 2017 following the Board’s 
decision in August to approve development 
of the $916 million copper–gold mine. 

Carrapateena is one of Australia’s largest 
new mining developments. It is an iron-
oxide, copper–gold deposit, located in South 
Australia’s highly prospective Gawler Craton 
region. The ore reserve tonnage estimate is 
79 million tonnes with a copper equivalent 
grade of 2.31 per cent.

A feasibility study update informed the 
Board’s development decision. The study 
confirmed an estimated 20-year mine life 
and a Q4 2019 commissioning date, after 
which Carrapateena’s plant will progressively 
ramp up over an 18-month period to a 
throughput rate of 4.25 Mtpa. The life of 
mine average annual production is estimated 
to be 65,000 tonnes of copper and 67,000 
ounces of gold.

2017 project highlights included: 
 / successfully delivering all works  

scheduled on-time and on-budget 

 / jointly receiving the Premier’s Award for 
Social Inclusion 2017 for our partnering 
agreement with the Kokatha Aboriginal 
Corporation, traditional owners of the  
land on which the project is built

 / successfully using an early contractor 

involvement model to secure approximately 
50 per cent of pre-production capital 
for construction contracts in lump sum 
contracts

 / partnering with the Industry Capability 

Network and appointing a local community 
relations contact to facilitate local access 
to information on contract packages and 
sustainable local procurement

 / commencing phase one construction 
of a staged work program. Phase two 
construction is scheduled to start in Q2 
2018. Subject to mining lease approval, 
phase two will see the construction of the 
on-site processing plant and other major 
operational infrastructure.

We identified multiple improvements 
through the feasibility study and our agile 
project evaluation and delivery meant 
that these were implemented quickly to 
improve the project’s economics and risk 
management. 

The mine design was updated during the 
feasibility study to allow all underground 
capital development to be moved to footwall 
host rocks in the south-west from the north-
east. This is an example of our agile project 
evaluation and delivery in action – we can 
now reach the ore body earlier and establish 
infrastructure out of the mineralised zone.

Our ongoing relationships and engagement 
with the traditional owners, pastoralists 
and local communities are based on mutual 
respect, understanding and trust. These have 
been instrumental in progressing the project. 

By way of example, the Native Title Mining 
Agreement (NTMA) was reached with the 
Kokatha Aboriginal Corporation in just  
12 months. The strong relationships 
established between senior members of 
OZ Minerals and Kokatha in 2016, during 
development of a partnering agreement, 
made the formal NTMA’s rapid development 
possible. A Partnering Management 
Committee with representatives of Kokatha 
and OZ Minerals now meets quarterly to 
operationalise the NTMA.

We also received valuable feedback on 
Carrapateena’s Mining Lease Proposal from 
engagement and consultation activities 
with local communities, landowners and 
businesses in the Upper Spencer Gulf.

One of Australia’s largest 
undeveloped copper 
deposits, Carrapateena, 
will be a 4.25 Mtpa 
underground sub-level 
cave operation, with an 
estimated mine life of  
20 years. 

Carrapateena is expected 
to generate operating 
cash flow by Q4 2019. 
Carrapateena is located 
in a region highly 
prospective for additional 
resources, with known 
mineralisation at Khamsin 
and Fremantle Doctor.

(b)  Please refer to the Mineral Resources and Ore Reserves 

section (p. 81) for full disclosure.

(c)  This information was extracted from the Carrapateena 
project Feasibility Study Update report’ released to the 
ASX on 24 August 2017 and is available at ozminerals.
com/media/asx. OZ Minerals confirms that all material 
assumptions underpinning the production target in that 
report continue to apply and have not materially changed.

ANNUAL AND SUSTAINABILITY REPORT 2017o PeR A tInG  R eV IeW

1 1

134 Mt

resource 1.5% copper,  
0.6 g/t gold2

US$0.62/lb

bottom quartile, average C1 costs 
over life of mine 

OVE RVIEW

Location: 250 km south-east of Prominent 
Hill, 160 km north of the regional centre of 
Port Augusta, in South Australia

Deposit: Iron–oxide, copper-gold

Status: Project feasibility study update 
completed, phase one construction underway

Resources: Total estimated indicated, 
inferred and measured resources (based on 
$70 nSR cut-off grade) of 134 Mt at 1.5% 
copper, 0.6 g/t gold (1,970 kt copper and  
2.6 Moz of gold)(b)

Reserves: 79 Mt @ 1.8% copper, 0.7 g/t gold 
(1,400 kt copper and 1.8 Moz of gold)(b)

Estimated annual production: 
Approximately 65,000 tonnes of copper and 
approximately 67,000 ounces of gold

Robust financials(c): nPV is ~$910 million

IRR of approximately 20% on a post tax basis 
at copper/gold AUS consensus pricing

1 2

West Musgrave

The West Musgrave copper–nickel project is 
the first project in our exploration pipeline 
to advance through the stages to a pre-
feasibility study. 

The Project is located in the highly 
prospective Musgrave Province of Western 
Australia near the South Australian and 
Northern Territory borders and it is Australia’s 
largest undeveloped copper–nickel deposit. 

OZ Minerals decided to proceed to the next 
stage of our earn-in agreement, following 
the November release of the further scoping 
study results from our joint venture partner, 
exploration company, Cassini Resources. 
Under this agreement we can earn 51 per 
cent of the Project by spending $19 million 
within 18 months and up to 70 per cent by 
spending a total of $36 million.

The further scoping study demonstrated 
an investable base case for the Nebo-Babel 
deposits with upside potential through 
resource conversion. We are looking to 
develop the Nebo-Babel deposits into a low 
cost, scalable, long life operation. It presents 
as a gently-dipping orebody conducive to 
large-scale open pit mining.

The further scoping study evaluated 
several development scenarios ranging 
from six to 12 Mtpa throughput. The study 
demonstrated the Project’s economic viability 
at all of the throughput scenarios with strong 
annual nickel and copper production and 
low operating costs. The 10 Mtpa scenario 
presented the most financial potential. 

At 10+ Mtpa, the Project has an estimated 
annual production rate of 20,000–25,000 
tonnes of nickel, 25,000–30,000 tonnes of 
copper and 700–1,000 tonnes of cobalt.  
The project has an eight-year mine life but  
as the confidence of the resource improves, 
it is likely to extend to beyond 15 years.  
Its average net cash flow is expected to  
be $120-$150 million(d).

Nebo and Babel contain a combined 
indicated and inferred mineral resource 
estimate of 283 million tonnes at 0.39 
per cent copper and 0.36 per cent nickel. 
The copper equivalent grade is 1–1.2 per 
cent. The Succoth inferred mineral resource 
estimate is 156 million tonnes at 0.6 per 
cent copper(e). A significant amount of the 
Nebo-Babel mineral resource occurs beneath 
shallow cover of less than 50 metres. 

The Musgrave area is an exciting new 
mineral province with attractive near-mine 
and district opportunities. 

OZ Minerals will be managing the PFS 
which will focus on improving metallurgical 
recoveries, lower cost non-process 
infrastructure, and resource conversion. 
Cassini will manage a four million dollar 
exploration program that will focus on 
regional potential, including the One Tree  
Hill prospect and Succoth copper deposit.

(d) This information was extracted from the West Musgrave 

Project to progress to Pre-Feasibility Study report released to 
the ASX on 14 November 2017 and is available at ozminerals.
com/media/asx. OZ Minerals confirms that all material 
assumptions underpinning the production target in that report 
continue to apply and have not materially changed.

(e)  The information regarding the West Musgrave Project was 
extracted from Cassini Resources’ ASX Release entitled 
‘Nebo-Babel Scoping Study’ dated 13 April 2015 and ‘Positive 
Nebo-Babel Optimisation Study Results’ dated 14 April 2016 
and is available at cassiniresources.com.au/investor-relations/
asx-announcements. The information in this report that relates 
to exploration results has not been compiled by OZ Minerals. 
The reported information has been derived from publically-
available information arising from exploration activity reported 
by Cassini Resources. OZ Minerals makes no comment or 
representation regarding the exploration, verification and 
evaluation techniques adopted in respect of the historical 
exploration results reported in this announcement.

ANNUAL AND SUSTAINABILITY REPORT 2017o PeR A tInG  R eV IeW

1 3

Exploration and Growth

OZ Minerals’ dynamic pipeline of potential 
growth opportunities advanced and 
expanded in 2017. 

drilling. An early site visit identified copper 
mineralisation and alteration consistent with 
a magnetite-hosted IOCG system. 

 / 35 metres at 0.35% Cu and 0.05 g/t Au 
from 197 metres at J1 conductor, Hole 
EL17D06

Two new international earn-in agreements 
were signed, Oaxaca in Mexico and Alvito  
in Portugal, and one new Australian 
agreement was established for Punt Hill near 
our Carrapateena project in South Australia. 
The Yandal One exploration joint venture 
with Toro Energy, and the Intercept Hill 
exploration joint venture with Red Tiger  
were exited when drilling programs did  
not meet the required technical hurdles. 

We conducted drilling and geophysics 
programs during the year to progress 
projects in our exploration portfolio with 
some encouraging results from Eloise, 
including 27 metres at 2.42% Cu and  
0.71 g/t Au from 435 metres in Hole 
EL17D06(f).

In a major undertaking, we made our 
extensive and growing bank of exploration 
and growth data more readily accessible.  
We partnered with Amazon Web Services  
to consolidate and simplify the way these 
large and complex exploration data sets  
are stored, accessed and analysed. 

We anticipate spending $10–$15 million 
on exploration in 2018, which excludes 
expenditure on the West Musgrave project 
($20–$30 million) and the Carrapateena 
district ($8–$10 million). 

Oaxaca with Acapulco Gold Corp 
comprises three newly-identified base 
metal properties in Oaxaca, South Mexico. 
Acapulco Gold is a private exploration 
company based in Canada with significant 
experience and a discovery track record  
in Mexico.

The sites being targeted have the potential 
for volcanic-hosted massive sulphide (VHMS) 
deposits. VHMS deposits are significant 
contributors to the global production of 
copper, zinc, lead and silver.

Geological mapping and geochemical 
sampling were undertaken in 2017 to 
identify high priority targets. Subsequent 
reconnaissance mapping and sampling 
resulted in the discovery of surface copper 
mineralisation. Drill hole permitting for 
Riqueza Marina is currently underway,  
with a drill program expected to commence 
in mid-2018. 

Alvito with Avrupa Minerals targets iron-
oxide copper–gold (IOCG) mineralisation at 
the Alvito site, located 60 km south-east of 
Lisbon. Avrupa Minerals is a Canadian-listed 
exploration company. 

The Alvito project is characterised by a 24 
km long copper-in-soil anomaly with limited 

In 2017, a ground geophysics program was 
completed across the entire project area, 
highlighting numerous targets, including a 
positive gravity anomaly that coincides with 
a key geological contact. Drilling of priority 
targets is set to commence in the first half 
of 2018.

Intercept Hill with Red Tiger Resources  
is an IOCG exploration project located 30 km 
north-west of the Carrapateena project. 

Targets were generated from reprocessed 
geophysical data and the work indicated 
that significant anomalies may have been 
overlooked. Four drill holes were completed 
during 2017 with no significant results.  
This project was subsequently exited.

Coompana with Mithril Resources 
consists of seven exploration licences in 
South Australia’s far western Coompana 
Province. Mithril is an experienced nickel  
and copper exploration company based  
in South Australia.

A significant amount of airborne and ground 
geophysics has been conducted in the area 
by the South Australian Department of State 
Development in collaboration with PACE 
Copper. A scientific drill program sponsored 
by Geological Survey of South Australia in 
conjunction with Geoscience Australia was 
undertaken in 2017 and results are expected 
in 2018. 

Eloise with Minotaur Exploration 
focuses on Cannington-style lead–zinc–silver 
mineralisation and Eloise-style high grade 
copper–gold mineralisation in the highly 
prospective Eastern Succession of the  
Mount Isa block in Queensland.

A drilling program in 2017 completed four 
additional diamond drill holes (~3,000 m) 
that tested the Iris and Electra anomalies, 
with all holes intercepting low-grade  
copper–gold mineralisation. 

The focus of work has now moved to the 
southern portion of the licences, which hosts 
the eastern flank of the Levuka shear zone. 
A 90 line-kilometre electromagnetic survey 
completed over this area identified a large 
number of interpreted bedrock conductors, 
including the large Jericho anomaly. 

The Jericho prospect comprises two linear, 
multi-plate conductive zones 3–4 km in 
length, modelled to be 50–275 m below 
surface. The prospect was tested by  
eight diamond drill holes and copper  
was intersected in all holes. Some of the 
better intersections returned include:

 / 27 metres at 2.42% Cu and 0.71 g/t Au 
from 435 metres at J2 conductor, Hole 
EL17D06

 / 46 metres at 0.74% Cu and 0.17 g/t Au 
from 214 metres at J1 conductor, Hole 
EL17D09

 / 4.4 metres @ 1.6% Cu and 0.5 g/t Au from 
456 metres at J2 conductor, Hole EL17D09.

A single drill hole was completed at the 
Arlington and St Louis prospects. Pyrrhotite 
and minor chalcopyrite were returned in 
both holes. Exploration in 2018 will continue 
to focus on the southern licence area,  
and will include further drill testing of the 
Jericho conductor.

Mount Woods with Minotaur 
Exploration targets copper resources in 
the tenements surrounding OZ Minerals’ 
Prominent Hill mine. It is focused on 
identifying and drilling IOCG and iron 
sulphide–copper–gold (ISCG) targets. 

This innovative agreement gave Minotaur 
access to OZ Minerals’ repository of 
exploration data from over 15 years so 
they can use their regional expertise to 
interrogate the database for new drill testing 
targets. This also provides an opportunity 
to accelerate the search for new copper 
resources in the Prominent Hill district.  
Four priority conductors were identified and 
drilled in late 2017, with only minor skarn 
related mineralisation intersected at the 
Maverick prospect. 

Punt Hill with Red Metal targets IOCG 
mineralisation in the area adjacent to 
Carrapateena. Red Metal is an ASX-listed, 
Australian mineral explorer with exploration 
experience in Australia’s most productive 
mineral provinces. 

Previous work on Punt Hill uncovered many 
examples of IOCG mineralisation and one 
of the new prospects shows a number of 
geophysical similarities to the deposits at 
Carrapateena. Subject to the successful 
negotiation of a Native Title Mining 
Agreement, drilling is expected to take  
place in the second half of 2018.

(f)  The information regarding the Eloise project was extracted 
from Minotaur Exploration’s ASX release entitled ‘High 
grade copper–gold confirmed at ‘Jericho’, Eloise JV, 
Cloncurry’ dated 3 November 2017 and is available at 
www.minotaurexploration.com.au/investor-information/
asxannouncements. The information in this report that relates 
to exploration results has not been compiled by OZ Minerals. 
OZ Minerals makes no comment or representation regarding 
the exploration, verification and evaluation techniques 
adopted in respect of the historical exploration results 
reported in this announcement.

1 4

Governance

OZ Minerals provides 
strong governance to 
enable lean business 
processes, clear 
accountability and room 
for innovation. This is 
fundamental to our 
business strategy.

OZ Minerals’ management 
structure
OZ Minerals’ management structure, 
Governance and Risk Policy, and supporting 
standards provide clear guidelines and 
reporting structures to ensure our activities 
reinforce the corporate strategy and are 
conducted in a financially, environmentally 
and socially responsible way.

OZ Minerals’ Board is committed to adopting 
the recommended corporate governance 
practices set out in the ASX Corporate 
Governance Council Principles and 
Recommendations.

The Board is responsible for overseeing 
the management of the Company. The 
Board has adopted a Board Charter that 
sets out its roles and responsibilities, which 
includes setting the Company’s goals and 
objectives, reviewing and monitoring the 
Company’s material risks and its system of 
internal compliance and controls, setting 
an appropriate corporate governance 
framework, and determining broad 
policy issues for the Company. The Board 
also ensures that specific powers and 
responsibilities have been delegated to the 
Company’s Executive Committee and that 
the overall strategy is aimed at delivering 
value for shareholders.

The Board currently comprises seven 
directors, one executive director and six  
non-executive directors. The executive 
director is Managing Director and Chief 
Executive Officer, Andrew Cole. The Board 
has a unitary structure. All non-executive 
directors, including the Chairman, are 
independent. The proportion of women  
on the Board is 43 per cent(g).

Three standing committees help the  
Board with the effective discharge of  
its responsibilities.

Audit Committee – assists the Board in 
the effective discharge of its responsibilities 
in relation to financial reporting and 
disclosure processes, internal financial 
controls, funding, financial risk management, 
including hedging and the internal and 
external audit functions, and oversight of 
the internal control and risk management 
system’s effectiveness.

Human Resources and Remuneration 
Committee – assists the Board in 
discharging its responsibilities relating to  
the remuneration of directors, executives  
and employees, succession planning, and  
the Diversity and Inclusion Policy’s 
establishment and monitoring.

Sustainability Committee – assists the 
Board in the effective discharge of its 
responsibilities in relation to safety, health, 
environment and community (SHE&C) issues 
for the OZ Minerals Group. This includes 
managing the risks relating to SHE&C issues 
by meeting the Company’s requirements 
for internal notification, investigation, 
reporting and continuous improvement, 
and overseeing the public reporting and 
disclosure processes insofar as they relate  
to SHE&C risks.

The Directors’ Report presents additional 
information on directors and officers,  
such as their qualifications, experience, 
special responsibilities and attendance  

at OZ Minerals Board meetings and  
Board committee meetings.

OZ Minerals management team
Management is responsible for implementing 
management systems across the business, 
and monitoring the application and 
effectiveness of these systems through 
internal and external audits. Training and 
competency is part of the continuous 
improvement process and is detailed in  
the Performance Standards.

Michelle Pole was appointed OZ  
Minerals’ Company Secretary effective  
13 December 2017.

Robert Fulker resigned as Chief Operating 
Officer effective 23 November 2017.  
A global search is underway to fill this 
position. In the interim, Myles Johnston 
(General Manager Carrapateena Operations) 
and John Penhall (General Manager 
Prominent Hill) have joined the Executive 
Committee.

(g) On 1 November 2017, OZ Minerals announced changes 
to the Board which will see Charles Lenegan retire from  
the Board at OZ Minerals’ Annual General Meeting on  
24 April 2018. Non-executive Director, Peter Wasow, who 
was appointed to the Board as a non-executive Director 
effective 1 November 2017, will succeed Mr Lenegan  
as Chairman of the Audit Committee from that date,  
if elected at the Annual General Meeting.

Other changes to the board include:
 / Neil Hamilton and Paul Dowd retired as non-executive 
directors at the 24 May 2017 Annual General Meeting 

 / Rebecca McGrath succeeded Neil Hamilton as 

Chairman of the Board at the 24 May 2017 Annual 
General Meeting

 / Tonianne Dwyer and Peter Tomsett were appointed  
as non-executive directors, effective 22 March 2017.

Further information can be found in the Company’s 
announcement entitled ‘OZ Minerals appoints new Non-
Executive Director’ released to the ASX on 1 November 
2017, which is available at ozminerals.com/media/asx/ 

ANNUAL AND SUSTAINABILITY REPORT 2017G o VeRnAnCe

1 5

Management Structure

OZ Minerals Ltd Board of Directors

Rebecca McGrath

Chairman and  
Independent Non-executive Director

Andrew Cole

Managing Director
and Chief Executive Officer

Charles Lenegan

Independent  
Non-executive Director

Julie Beeby

lndependent  
Non-executive Director

Peter Tomsett

Independent  
Non-executive Director

Tonianne Dwyer

Independent  
Non-executive Director

Peter Wasow

Independent  
Non-executive Director

Board Committees

Audit  
Committee

Human Resources and
Remuneration Committee

Sustainability  
Committee

OZ Minerals Ltd management team

Andrew Cole

Managing Director
and Chief Executive Officer

Warrick Ranson

Chief Financial Officer(h)

Mark Irwin

Chief Commercial Officer(i)

Mark Rankmore

Head of People  
and Performance

Robert Mancini

Head of Legal(j)

Kerrina Chadwick

Head of  
Corporate Affairs

Asset managers and line managers

Employees

(h) Commenced 4 December 2017. Luke Anderson resigned 
as Chief Financial Officer effective 29 September 2017.

(i)  Commenced 2 January 2018.
(j)  Robert Mancini resigned as Company Secretary  

effective 13 December 2017 and resigned as Head  
of Legal effective February 2018.

S U P P O R T I N G   D O C U M E N T S

 / Corporate Governance Statement 
 / OZ Minerals Policies and supporting Standards
 / Board and Committee Charters
 / Company Constitution
 / Code of Conduct

ozminerals.com/about/corporate-governance/

1 6

Governance Framework

Company Constitution   /   Code of Conduct   /   Board Charter

Audit  
Committee Charter

Human Resources and
Remuneration Committee Charter

Sustainability  
Committee Charter

Governance and Risk Policy
To ensure ethical, fit-for-purpose business 
processes are used to meet the highest 
corporate governance standards and identify 
opportunities and threats using robust 
processes across OZ Minerals.

Market Dividend Policy
To ensure fair trading in the securities of  
OZ Minerals and to outline the principles to 
be considered for the payment of a dividend 
by OZ Minerals in accordance with the ASX 
listing rules and Corporations Act.

Finance and Accounting Policy
To ensure OZ Minerals complies with 
all financial and accounting regulatory 
obligations with a view to being a leader  
in fiscal discipline, reporting, disclosure  
and transparency.

Securities Trading Standard
To set out the policy of OZ Minerals for 
employees (full time, part time and casual), 
directors, consultants and contractors  
of OZ Minerals trading in securities of  
the Company. 

Policies and Standards

Health and Safety Policy
To strive to be an injury and occupational 
disease-free workplace whilst achieving 
operational excellence.

Diversity and Inclusion Policy 
To foster a culture that values individual 
differences which are leveraged to deliver 
optimal outcomes for OZ Minerals.

Exploration and Resource  
Development Policy
To underpin the growth of OZ Minerals  
by identifying, securing and delivering 
additional mineral opportunities outside  
our current portfolio.

Operations and Asset  
Management Policy
To ensure the safe and effective delivery 
of world-class operations through sound 
application of consistent performance.

Environment and Community Policy
To ensure OZ Minerals delivers sound 
environmental outcomes whilst supporting 
the creation of shared value for the 
communities in which we operate.

Ethics and Human Rights Policy
To help protect the human rights of  
our stakeholders and to prevent human 
rights breaches from occurring at OZ 
Minerals’ assets.

Continuous Disclosure Standard 
To ensure timely and accurate information  
is provided equally to all shareholders and 
market participants, consistent with the  
OZ Minerals’ commitment to its continuous 
disclosure obligations.

Anti-bribery and Corruption Policy
To ensure directors, officers and employees 
understand, observe and comply with 
anti-bribery and anti-corruption laws and 
regulations, and a set of How We Work 
Together principles.

Performance standards

Environment

Social

Safety

Health and wellbeing

Process standards (including Enterprise Risk Management)

Business planning

Legal and compliance

Finance and commercial

Human resources

Communications and reporting

Information and data

Operations and engineering

Reference documents

Asset documents

ANNUAL AND SUSTAINABILITY REPORT 2017G o VeRnAnCe

1 7

Governance Framework

All corporate and further-developed asset 
documents comply with the laws and 
regulations of the jurisdiction in which  
each asset operates.

Internal and external audits
OZ Minerals conducts regular audits to 
systematically and objectively verify that 
it conforms to performance management 
standards and legal requirements, and 
in order to recommend ways to improve 
safety, health and wellbeing along with 
environmental and social performance. 
Further audits are undertaken commensurate 
with the risk profile.

The governance 
framework at OZ Minerals 
has been designed to 
enable lean business 
processes that drive 
clear accountabilities 
and create room for 
innovation.

We focus on what matters, and set processes 
that create value, embrace the devolved 
business model and provide clarity for new 
assets, partners, suppliers and employees 
coming into OZ Minerals.

Our values and behaviours drive transparency 
and fair dealing, and propagate a culture of 
performance and devolved accountability 
– this allows us to deliver on our Company 
strategy. OZ Minerals’ Code of Conduct 
applies standards for appropriate ethical  
and professional behaviour and guides  
OZ Minerals’ employees, directors, 
contractors and partners.

The Code of Conduct reinforces the 
importance of our values in carrying out our 
responsibilities to shareholders, employees, 
customers, suppliers, consumers and 
the broader community. It provides clear 
guidelines as to our expectations in regards 
to a number of specific issues, such as 
conflict of interest, gifts, entertainment and 
gratuities, anti-bribery, fraud and corruption, 
equal opportunity, whistleblowing and 
conflicts of interest.

OZ Minerals’ nine Company policies 
work synergistically to provide a clear 
representation of our intent while providing 
a platform for multiple assets to work 
together under a devolved model. Policy 
documents, our Securities Trading Standard 
and our Continuous Disclosure Standard 
are available both internally and externally 
and are used to clearly articulate what we 
strive for to all stakeholders, partners and 
communities.

Underpinning the policies are performance 
standards that are grouped into four key 
areas. These are safety, environment, health 
and wellbeing, and social. They define the 
minimum required performance to manage 
sustainability opportunities and threats. 
These standards will be used to audit asset 
performance and set the standards for any 
new assets to achieve. They are provided to 
contractors and partners to outline what we 
expect when they work at an OZ Minerals 
asset. These documents are structured  
so that each asset, contractor or partner  
can use or develop their own business 
standards and processes to meet our 
standards, in keeping with our lean,  
devolved business model.

OZ Minerals is revising its business process 
standards so that they describe, in the 
simplest possible way, processes or the 
management activities that occur across 
the business in a repeatable manner. They 
are the activities that we undertake that 
are unique to OZ Minerals, and they will be 
used by OZ Minerals’ employees and assets. 
They define the inputs and outputs required, 
the processes people must follow and the 
delegations that they can work within.

1 8

ANNUAL AND SUSTAINABILITY REPORT 2017DI ReCtoR S'   R ePoR

t

1 9

Directors’ 
Report

2 0

Announcement to  
the Market Results

We have provided the announcement to 
market results in accordance with Australian 
Securities Exchange (ASX) Listing Rule 4.2A 
and Appendix 4E for the Consolidated 
Entity (OZ Minerals) comprising OZ 
Minerals Limited (OZ Minerals Limited or 
the ‘Company’) and its controlled entities 
for the year ending 31 December 2017 
(financial year) compared to the year ending 
31 December 2016 (comparative year).

Consolidated results, commentary on results and outlook

31 December 
2017 
$m

31 December  
2016 
$m

Movement 
$m

Movement 
%

1,023.1

231.1

822.9

107.8

200.2

123.3

24.3

114.4

Revenue

Profit after tax attributable to  
OZ Minerals Limited equity holders 

The commentary on the consolidated results and outlook, including changes in state of affairs 
and likely developments of the Consolidated Entity, is set out on pages 6–13 and within the 
Financial Review section of the Directors’ Report (pp. 29–35).

net tangible assets per share

31 December 2017

31 December 2016 

$ per share

$ per share

Net tangible assets per share

8.42

7.04

In accordance with Chapter 19 of the ASX Listing Rules, net tangible assets per share 
represents the total assets less intangible assets, less liabilities ranking ahead of, or equally 
with, ordinary share capital, and divided by the number of ordinary shares on issue at the  
end of the financial year.

Dividends
Since the end of the financial year, the Board of Directors has resolved to pay a fully franked 
dividend of 14 cents per share, to be paid on 26 March 2018. The record date for entitlement 
to this dividend is 12 March 2018. The financial impact of the dividend amounting to $41.8 
million has not been recognised in the Consolidated Financial Statements for the year ended 
31 December 2017 and will be recognised in subsequent Consolidated Financial Statements.

Dividends announced or paid since 1 January 2016

Record date

Payment date

Unfranked  
cents per share

Fully franked 
cents per share

Total dividends 
$m

12 March 2018

26 March 2018

7 September 2017

21 September 2017

10 March 2017

24 March 2017

9 September 2016

23 September 2016

24 February 2016

10 March 2016

–

–

–

6*

14*

14

6 

14

–

–

41.8

17.9

41.8

18.1

42.5

* The unfranked dividends were declared to be conduit foreign income for Australian income tax purposes.

Independent auditor’s report
The above announcement of the results to the market is based upon the Consolidated 
Financial Statements and we have included the Independent Auditor’s Report to OZ Minerals 
Limited members (p. 127).

ANNUAL AND SUSTAINABILITY REPORT 2017 
Directors’ Report

Your directors present 
the OZ Minerals Annual 
Report 2017, together 
with the Consolidated 
Financial Statements,  
for the year ending  
31 December 2017.  
OZ Minerals Limited is 
a Company limited by 
shares that is incorporated 
and domiciled in Australia.

DI ReCtoR S'   R ePoR

t

2 1

Principal activities
OZ Minerals mines and processes ore that contains copper, gold and silver; sells concentrate; 
undertakes exploration activities; and develops mining projects. The Company’s activities 
occur both within Australia and internationally. More information on OZ Minerals principal 
activities can be found on pages 6–13 and within the Financial Review (pp. 29–35). 

Significant changes in state of affairs 
OZ Minerals state of affairs are consistent with prior years (as discussed on pages 6–13  
and 29–35).

Dividends
Since the end of the financial year, the Board of Directors has resolved to pay a fully 
franked dividend of 14 cents per share. This will be paid on 26 March 2018 and the date of 
record for entitlement to this dividend will be 12 March 2018. The financial impact of the 
dividend, amounting to $41.8 million, has not been recognised in the Consolidated Financial 
Statements for the financial year ending 31 December 2017 and will be recognised in 
subsequent Consolidated Financial Statements.

Dividends announced or paid since 1 January 2016

Record date

Payment date

Unfranked 
cents per share 

Fully franked 
cents per share

Total dividends 
$m

12 March 2018

26 March 2018

7 September 2017

21 September 2017

10 March 2017

24 March 2017

9 September 2016

23 September 2016

24 February 2016

10 March 2016

–

–

–

6*

14*

14

6 

14

–

–

41.8

17.9

41.8

18.1

42.5

* The unfranked dividends were declared to be conduit foreign income for Australian income tax purposes.

2 2

Directors and officers

oZ Minerals directors and officers for the financial year ending 31 December 2017 and up to the date of this report

Position

Experience and expertise

OZ Minerals special 
responsibilities 
during 2017

Other directorships 
at currently listed 
entities 

Previous directorships 
at listed entities (within 
the last three years) 

Non-executive Director of 
CSR Limited from February 
2012 to October 2016

Non-executive Director 
of Incitec Pivot Limited 
since September 2011
Non-executive Director 
of Goodman Group 
since April 2012

Chairman of the Board 
(appointed 24 May 
2017)
Member of Human 
Resources and 
Remuneration 
Committee
Chairman of 
Human Resources 
and Remuneration 
Committee (resigned  
24 May 2017)
Member of the Audit 
Committee (resigned  
24 May 2017)

Managing Director and 
Chief Executive Officer

None

None

Current directors

Rebecca McGrath
Independent 
Non-executive Chairman
Appointed as a Non-
executive Director on
9 November 2010 and 
Chairman on 24 May 2017
BTP (Hons), 
MA (App.Sci), FAICD

Ms McGrath is an internationally experienced 
business leader, director and chairman. Ms McGrath’s 
executive career included 24 years with BP Plc. She 
held a range of senior executive and group executive 
roles in Australia, Europe and U.K, including Chief 
Financial Officer, Chief Operating Officer and Executive 
Management Board member Australia and New 
Zealand. Ms McGrath is a member of the JP Morgan 
Australia Advisory Council, Chairman of Investa 
Office Management Holdings Pty Ltd and a member 
of the Victorian Council of the Australian Institute of 
Company Directors.

Andrew Cole
Managing Director and 
Chief Executive Officer
Appointed on  
3 December 2014
BAppSc (Hons) in 
Geophysics MAICD

Mr Cole has over 25 years’ experience in exploration 
and operations in the resources industry. Following 
exploration geoscientist roles in Australia, Canada, 
USA and Mexico with Rio Tinto Exploration (CRA 
and Kennecott), Mr Cole spent 10 years in mine 
development and mine operations with Rio Tinto in 
Australia, China, Canada and the United Kingdom.
During his career at Rio Tinto, Mr Cole held various 
senior and leadership positions, including General 
Manager Operations of the Clermont Region 
Operations, including the Blair Athol Mine and 
Clermont Mine, Chief Executive Officer of Chinalco  
Rio Tinto Exploration and Chief Operating Officer  
of Rio Tinto Iron and Titanium.
Mr Cole is a Councilor of SACOME (South Australian 
Chamber of Mines and Energy).

Julie Beeby 
Independent  
Non-executive Director 
Appointed on  
19 April 2016
BSc (Hons I), PhD (Physical 
Chemistry), MBA, FAICD, 
FTSE

Dr Beeby was the former Chief Executive Officer of 
Brisbane-based gas producer, Westside Corporation.  
Dr Beeby has more than 25 years’ operations, project 
and strategy experience in the resources sector, 
including the minerals and petroleum industries. Dr 
Beeby also has experience in mergers and acquisitions. 
Dr Beeby has been the Chairman of Powerlink Qld (Qld 
Electricity Transmission Corporation Ltd) since 2014 
and has been a Board member since 2008.

Tonianne Dwyer
Independent  
Non-executive Director 
Appointed on  
22 March 2017
BJuris (Hons), LLB (Hons) 

Ms Dwyer is an independent non-executive public 
company director. Ms Dwyer spent over 20 years in 
investment banking and real estate fund management 
and was a Director of Investment Banking at 
Societe Generale/Hambros Bank advising on M&A, 
restructuring and refinancing. Ms Dwyer was Head of 
Fund Management at the LSE listed property company, 
Quintain Estates & Development plc and was later 
appointed to the Board as an Executive Director. Ms 
Dwyer is a graduate member of Australian Institute of 
Company Directors and a member of Chief Executive 
Women and Women Corporate Directors.

Member of the 
Sustainability 
Committee
Member of the 
Human Resources 
and Remuneration 
Committee (resigned  
24 May 2017)
Member of the Audit 
Committee (appointed 
24 May 2017)

Chairman of the 
Human Resources 
and Remuneration 
Committee (appointed 
24 May 2017)
Member of the 
Human Resources 
and Remuneration 
Committee (22 March 
2017 to 24 May 2017)
Member of the Audit 
Committee (appointed 
22 March 2017)

Non-executive Director 
of Whitehaven Coal Ltd 
since July 2015

None

Non-executive Director of 
Cardno Limited from 2012 
to 2016

Non-executive Director 
of DEXUS Property 
Group
Non-executive Director 
of ALS Limited since July 
2016
Non-executive Director 
of Metcash Limited 
since June 2014

ANNUAL AND SUSTAINABILITY REPORT 2017DI ReCtoR S'   R ePoR

t

2 3

Position

Experience and expertise

OZ Minerals special 
responsibilities 
during 2017

Other directorships 
at currently listed 
entities 

Previous directorships 
at listed entities (within 
the last three years) 

Current directors

Charles Lenegan
Independent  
Non-executive Director
Appointed on 
9 February 2010
BSc (Econ)

Peter Tomsett
Independent  
Non-executive Director 
Appointed on  
22 March 2017
BEng (Hons I), MSc

Peter Wasow
Independent  
Non-executive Director 
Appointed on  
1 November 2017
B. Comm, GradDip 
(Management), Fellow 
(CPA Australia)

Mr Lenegan was a former Managing Director of  
Rio Tinto Australia. Mr Lenegan had a distinguished 27-
year career with Rio Tinto where he held various senior 
management positions across a range of commodities 
and geographies. Mr Lenegan was formerly the 
Chairman of the Minerals Council of Australia and 
a former Board member of the Business Council of 
Australia. Mr Lenegan is currently Chairman of Bis 
Industries Limited (non-ASX listed company).

Mr Tomsett’s international career has spanned a wide 
range of technical, operational and senior management 
roles in the mining industry. He spent 20 years with 
global gold and copper company Placer Dome Inc. in a 
number of senior roles, including President and Chief 
Executive Officer until its acquisition. Mr Tomsett has 
been a director of the Minerals Council of Australia, 
the World Gold Council and the International Council 
for Mining and Metals. Mr Tomsett served as Non-
executive Chairman of the TSX and ASX listed Equinox 
Minerals until its acquisition in 2011. 

Mr Wasow has extensive experience in the resources 
sector as both a senior executive and director. He held 
the position of Managing Director and Chief Executive 
Officer of Alumina Limited until mid 2017. He formerly 
held the position of Executive Vice President and Chief 
Financial Officer, Santos Limited and in a 20-year plus 
career at BHP he held senior positions including Vice 
President, Finance and other senior roles in Petroleum, 
Services, Corporate, Steel and Minerals.
Mr Wasow is currently the senior independent Director 
of the privately held GHD Group. He was also Non-
Executive Director of Alcoa of Australia Limited, AWA 
Brazil Limitada, AWAC LLC and Non-Executive Director 
of ASX-listed Alumina from 2011 to 2013.
Mr Wasow has been also been a member of the 
Business Council of Australia, and director of the 
International Aluminium Institute and APPEA.

Former directors

Neil Hamilton
Independent
Non-executive Chairman
Appointed as a Non-
executive Director on 
9 February 2010 and 
Chairman on 13 April 2010
LLB
Neil Hamilton retired as a 
Non-executive Director and 
Chairman on 24 May 2017

Mr Hamilton is an experienced professional Company 
Director and Chairman. He has over 35 years’ 
experience in the legal profession and in business with 
substantial experience in senior management positions 
and on boards of public companies across law, funds 
management, investment, insurance and resources. 
Mr Hamilton has broad directorship experience across 
a range of ASX listed companies. He is the former 
Chairman of Challenge Bank Ltd, Western Power 
Corporation, Mount Gibson Iron Ltd, Iress Market 
Technology Ltd and Miclyn Express Offshore Ltd.  
Mr Hamilton is also a Senior Advisor to UBS.

None

Chairman of the Audit 
Committee
Member of 
Sustainability 
Committee 

Non-executive Director of 
Turquoise Hill Resources 
from August 2012 to May 
2014

Non-executive Director of 
Talisman Energy Inc from 
December 2009 to June 
2015

Non-executive 
Chairman of Silver 
Standard Resources Inc 
since May 2008
Senior Independent 
Director of Acacia 
Mining plc since April 
2013

None

Managing Director and 
Chief Executive Officer 
of Alumina Limited from 
January 2014 to May 2017

Chairman of the 
Sustainability 
Committee (appointed 
24 May 2017)
Member of the 
Sustainability 
Committee (22 March 
2017 to 24 May 2017)
Member of the 
Human Resources 
and Remuneration 
Committee (appointed 
22 March 2017)

Member of the Audit 
Committee (appointed 
1 November 2017)
Member of 
Sustainability 
Committee (appointed 
1 November 2017)

None

Chairman of OZ 
Minerals Limited Board
Member of Human 
Resources & 
Remuneration 
Committee

Non-executive Director 
of Metcash Limited from 
February 2008 to August 
2016

2 4

Position

Experience and expertise

OZ Minerals special 
responsibilities 
during 2017

Other directorships 
at currently listed 
entities 

Previous directorships 
at listed entities (within 
the last three years) 

Chairman of the 
Sustainability 
Committee
Member of Audit 
Committee

None

Non-executive Director 
of PNX Metals Limited 
since April 2012 
(previously Managing 
Director from September 
2008 to April 2012)
Non-executive Director 
of Energy Resources 
of Australia Ltd from 
October 2015 to 
present

Paul Dowd
Independent 
Non-executive Director 
Appointed on 
23 July 2009
BSc (Eng)
Paul Dowd retired as a  
Non-executive Director  
on 24 May 2017

Officers

Michelle Pole
Company Secretary
Appointed on  
13 December 2017
LLB, GDLP

Robert Mancini
Head of Legal 
Appointed on  
17 August 2015
LLB, BCom
Mr Mancini resigned as 
Company Secretary of OZ 
Minerals on 13 December 
2017

Mr Dowd is a mining engineer and has been in 
mining for 50 years, primarily in the private sector, 
but also serving in the public sector as head of the 
Victorian Mines and Petroleum Departments. He 
has held senior executive positions with Newmont 
and prior to that Normandy, including as Managing 
Director of Newmont Australia Limited and Vice 
President of Australia and New Zealand Operations for 
Newmont Mining Corporation. Mr Dowd currently has 
various advisory positions with councils and groups, 
including the SA Minerals and Petroleum Expert 
Group (SAMPEG), and the University of Queensland - 
Sustainable Minerals Institute Board. 
Mr Dowd is Chairman of the CSIRO Minerals Resources 
Sector Advisory Council, and was the Inaugural 
Chairman of RESA from September 2006 to May 2015 
and Non-executive Director of RESA from May 2015 
to present.

Ms Pole also holds office of OZ Minerals’ Senior 
Legal Counsel. Ms Pole spent most of her career in a 
leading national law firm before moving in-house to 
the mineral resources sector. Ms Pole has particular 
experience in commercial transactions, corporate 
advisory and compliance with the ASX, ASIC and other 
regulatory bodies. As well as being a Certificated 
Member of the Governance Institute, Ms Pole holds a 
Bachelor of Laws from The University of Adelaide and a 
Graduate Diploma in Legal Practice.

Mr Mancini holds a Bachelor of Laws and a Bachelor 
of Commerce majoring in Economics and Finance. Prior 
to joining OZ Minerals, Mr Mancini was Senior Legal 
Counsel at Clough Ltd, General Manager of Legal at 
UGL Ltd and Group General Counsel at Forge Group 
Ltd. Together with corporate and continuous disclosure 
compliance, Mr Mancini is experienced in negotiating 
large scale EPC and EPCM infrastructure contracts 
in the oil, gas and mining sectors, both domestically 
and internationally, as well as in dispute resolution 
management.

ANNUAL AND SUSTAINABILITY REPORT 2017DI ReCtoR S'   R ePoR

t

2 5

Meeting attendance 

Attendance at oZ Minerals Limited Board and committee meetings (1 January 2017 to 31 December 2017)

Board meetings

Audit

Board committee meetings

Human resources and 
remuneration

Sustainability

A

14

14

14

12

14

12

2

5

5

B

14

14

14

12

14

12

2

5

5

A

3

–

3

3

6

–

1

3

–

B

3

–

3

4

6

–

1

3

–

A

5

–

3

2

–

2

–

–

3

B

5

–

3

3

–

3

–

–

3

A

–

–

4

–

4

3

1

2

–

B

–

–

4

–

4

3

1

2

–

Current directors

Rebecca McGrath(a)

Andrew Cole

Julie Beeby(b)

Tonianne Dwyer(c)

Charles Lenegan

Peter Tomsett(c)

Peter Wasow(d)

Former directors

Paul Dowd(e)

Neil Hamilton(e)

Note: Andrew Cole and Non-executive Directors who are not Board Committee members also participated in scheduled Board Committee meetings throughout the year.  
A = the number of meetings attended during the time the director held office.  
B = the number of meetings held during the time the director held office.

(a)  Appointed as Chairman of the Board and resigned from the Audit Committee on 24 May 2017.
(b) Appointed to the Audit Committee and resigned from the Human Resources and Remuneration Committee on 24 May 2017.
(c)  Appointed as Non-executive Director on 22 March 2017.
(d) Appointed as Non-executive Director on 1 November 2017.
(e) Ceased as a Non-executive Director on 24 May 2017.

Directors’ interests

Directors’ interests in the ordinary  
shares of oZ Minerals Limited 

Director

Rebecca McGrath

Andrew Cole

Julie Beeby

Tonianne Dwyer

Charles Lenegan

Peter Tomsett

Peter Wasow

Total

Shares number

33,035

10,000

14,000

10,000

20,750

–

–

87,785

Environmental regulation
OZ Minerals and its activities in Australia and overseas are subject to environmental 
regulations. OZ Minerals’ Prominent Hill operations, Carrapateena project, Australian 
exploration activities and concentrate shipping activities operate under various licences and 
permits under Commonwealth, state and territory laws, in addition to the licensing and 
permit arrangements which apply to its overseas activities.

OZ Minerals regularly monitors its compliance with its licenses and permits in various ways, 
including through its own environmental audits as well as those conducted by regulatory 
authorities and other third parties. OZ Minerals uses a documented process to classify and 
report any exceedance of a licence or permit condition, as well as any incident reportable 
to the relevant authorities. All instances of reportable environmental non-compliance 
and significant incidents are reviewed by the Executive Committee and the Sustainability 
Committee of the OZ Minerals Board of Directors as a part of this process. A formal report is 
also prepared to identify the factors that contributed to the incident or non-compliance and 
the actions taken to prevent any reoccurrence.

During the year, OZ Minerals completed its ninth report under the National Greenhouse and 
Energy Report Act 2009 (NGERS). Prior to the submission of the report, a comprehensive 
independent audit was conducted on OZ Minerals’ processes that were developed to meet 
the Act’s requirements to assure that the reported emissions, energy production and energy 
consumption were prepared in accordance with the Act. 

 
2 6

Insurance and indemnity
During the financial year, OZ Minerals Limited paid premiums with respect to a contract 
insuring its directors, officers and related bodies corporate against certain liabilities incurred 
while acting in that capacity. The insurance contract prohibits disclosure of the liability’s 
nature and the amount of the insurance premium.

The Company’s constitution also allows OZ Minerals to provide an indemnity, to the extent 
permitted by law, to officers of the Company or its related bodies corporate in relation to 
liability incurred by an officer when acting in that capacity on behalf of the Company or a 
related body corporate.

The Consolidated Entity has granted indemnities under deeds of indemnity with current and 
former Executive and Non-executive Directors, former officers, the former General Counsel – 
Special Projects, the former Group Treasurer and each employee who was a director or officer 
of a controlled entity of the Consolidated Entity, or an associate of the Consolidated Entity, to 
conform with Rule 10.2 of the OZ Minerals Limited Constitution. 

Each deed of indemnity indemnifies the relevant director, officer or employee to the fullest 
extent permitted by law for liabilities incurred while acting as an officer of OZ Minerals, its 
related bodies corporate and any associated entity, where such an office is or was held at the 
request of the Company. The Consolidated Entity has a policy that it will, as a general rule, 
support and hold harmless an employee who, while acting in good faith, incurs personal 
liability to others as a result of working for the Consolidated Entity. 

No indemnity has been granted to an auditor of the Consolidated Entity in their capacity  
as auditor of the Consolidated Entity.

Proceedings on behalf of the Consolidated Entity
At the date of this report there are no leave applications or proceedings brought on behalf  
of the Consolidated Entity under section 237 of the Corporations Act 2001.

Audit and non-audit services
KPMG continues in office in accordance with the Corporations Act 2001. A copy of the lead 
auditor’s independence declaration is set out on page 92 as required under section 307C of 
the Corporations Act 2001 and this forms part of the Directors’ Report. 

OZ Minerals Limited, with the approval of the Audit Committee, may decide to employ the 
external auditor on assignments additional to their statutory audit duties where the auditor’s 
expertise and experience with the Consolidated Entity are important, and where these 
services do not impair the external auditor’s independence.

The Audit Committee has, following the passing of a resolution by the Committee,  
provided the Board with advice in relation to KPMG providing non-audit services.

In accordance with the advice received from the Audit Committee, the Board is satisfied 
that the provision of the non-audit services is compatible with the general standard of 
independence for auditors imposed by the Corporations Act 2001. The directors are  
satisfied that the non-audit services provided by the auditor did not compromise the  
auditor independence requirements of the Corporations Act 2001 because:

 / all non-audit services were reviewed by the Audit Committee to ensure they did not impact 

the integrity and objectivity of the external auditor

 / none of the services undermined the general principles relating to auditor independence as 
set out in APES 110 Code of Ethics for Professional Accountants. These include reviewing or 
auditing the auditor’s own work, acting in a management or a decision-making capacity for 
OZ Minerals Limited or its controlled entities, acting as advocate for the Company or jointly 
sharing economic risk and rewards.

Amounts paid or payable to the external 
auditor (KPMG) and its network firms  
for audit and non-audit services 

2017
$

Audit services provided by KPMG Australia
Audit and review of financial reports and other audit 
work under the Corporations Act 2001, including audit 
of subsidiary financial statements

KPMG Australia

Overseas KPMG firms

Total fee for audit services 
 provided by KPMG

Other assurance services provided  
by KPMG (Sustainability work)

Total audit and assurance fee 

Tax compliance and other tax  
advisory services

Other services provided by KPMG

Total non-audit fee

Total fees

425,000

23,549

448,549

50,000

498,549

180,000

44,328

224,328

722,877

ANNUAL AND SUSTAINABILITY REPORT 2017DI ReCtoR S'   R ePoR

t

2 7

Matters subsequent to the end of the financial year
Since the end of the financial year, the Board of Directors has resolved to pay a fully franked 
dividend of 14 cents per share on 26 March 2018. The record date for entitlement to this 
dividend is 12 March 2018. The financial impact of the dividend amounting to $41.8 million 
has not been recognised in the Consolidated Financial Statements for the year ended  
31 December 2017 and will be recognised in subsequent Consolidated Financial Statements.

There have been no other events subsequent to the reporting date which have significantly 
affected or may significantly affect OZ Minerals’ operations or results in future years. 

Rounding of amounts
The Company is of a kind referred to in ASIC Corporations Instrument 2016/191 (Rounding 
in financial/directors’ reports). Amounts in the financial statements and Directors’ Report have 
been rounded off in accordance with the instrument to the nearest million dollars to one 
decimal place, or in certain cases, to the nearest dollar. All amounts are in Australian dollars 
unless otherwise stated.

Operating and financial review
Our operations are reviewed on pages 6–13 and the Financial Review (pp. 29–35) forms part 
of the Directors’ Report. 

Remuneration report
The Remuneration Report which has been audited by KPMG is set out on pages 40–55,  
and forms part of the Directors’ Report. 

Corporate governance statement
The Board is committed to achieving and demonstrating the highest standards of corporate 
governance. The Board continues to refine and improve the governance framework and has 
practices in place to ensure they meet the interests of shareholders.

The Company complies with the Australian Securities Exchange Corporate Governance 
Council’s Corporate Governance Principles and Recommendations 3rd Edition (the  
ASX Principles). OZ Minerals’ Corporate Governance Statement, which summarises  
the Company’s corporate governance practices and incorporates the disclosures required  
by the ASX Principles, can be viewed at ozminerals.com/about/corporate-governance/
corporate-governance-statement. 

Signed in accordance with a resolution of the directors. 

Rebecca McGrath 
Chairman 
Adelaide, 22 February 2018

Andrew Cole 
Managing Director and CEO 
Adelaide, 22 February 2018

 
2 8

ANNUAL AND SUSTAINABILITY REPORT 2017f InAnC I A L  R eV IeW

2 9

Financial Review 

FI NANCIAL REVIE W

 / Net profit after tax of $231.1 million

 / Total revenue of $1.02 billion

 / Underlying EBITDA(a) of $539.4 million  

and EBITDA margin of 53 per cent

 / Net assets of $2.52 billion, with cash  

of $729.4 million and no debt.

OZ Minerals net profit after tax for the year was $231.1 million, which was an increase of 
$123.3 million (or 114%) compared to 2016. Strong production performance at Prominent 
Hill in 2017 enabled OZ Minerals to fully capitalise on the buoyant copper price and deliver an 
underlying net annual profit after tax of $231.1 million, an increase of $96.8 million (or 72%) 
compared to 2016. EBITDA margins improved 18 per cent year on year despite the marginally 
lower volume of copper sold. OZ Minerals’ cash balance of $729.4 million, an increase of 
$73.7 million compared to 2016 after capital investment at Carrapateena, expenditure on 
exploration activities, tax payments, and dividend payments to shareholders. 

Prominent 
Hill 

Carrapateena

Exploration 
and 
development

Corporate

Total

Total

2017  
$m

1,023.1

(440.1)

(10.9)

(0.6)

16.8

(5.2)

583.1

(215.7)

367.4

2017  
$m

2017  
$m

2017  
$m

2017  
$m

2016  
$m

–

–

– 

–

–

–

–

1,023.1

822.9

(440.1)

(380.3)

(0.1)

(20.5)

(31.5)

(36.7)

(5.2)

(20.1)

3.3

(22.6)

(24.3)

–

–

(5.2)

–

(5.2)

–

–

–

16.8

(10.5)

(1.1)

(6.3)

2.7

(20.2)

(18.3)

539.4

373.8

–

(3.0)

(218.7)

(208.7)

(20.2)

(21.3)

320.7

165.1

8.7

9.0

(98.3)

(39.8)

231.1

134.3

–

(26.5)

Net revenue 

Cost of goods sold 

Corporate general and 
administration

Exploration and other 
income/(expense)

Net realisable value 
adjustments

Foreign exchange 
(loss)/gain

Underlying EBITDA

Net depreciation

Underlying EBIT

Net finance income

Income tax expense

Underlying net profit after tax

Non underlying items net of tax(b) 

Net profit after tax for the year attributable to equity holders of OZ Minerals Limited

231.1

107.8

Basic and diluted earnings per share (cents per share)

77.4 

35.7

(a) OZ Minerals financial results are reported under International Financial Reporting Standards (‘IFRS’). This Annual Report and Results 
for Announcement to the Market include certain non-IFRS measures including Underlying EBITDA, Underlying EBIT and Underlying 
NPAT. These measures are presented to enable understanding of the underlying performance of the Consolidated Entity. Non-IFRS 
measures have not been subject to audit. Underlying EBITDA, Underlying EBIT and Underlying NPAT are included in Note 1 
Operating Segments, which form part of the Consolidated Financial Statements. Refer Note 1. 

(b) The non-underlying item net of tax is the settlement and legal cost associated with the class action incurred in 2016.

3 0

Variance analysis – underlying net profit after tax, 31 December 2017 compared to 31 December 2016 

350

300

250

n
o

i
l
l
i

m
$

200

150

100

0

182.5

1.3

31.5

2.4

58.9

Increase in mine 
costs:
Mine production  0.6 
Deferred waste (49.3)
Depreciation  17.2 
(31.5)
Total 

231.1

Increase in Tax 
and interest:
Income tax 
Interest 
Total 

 (58.5)
(0.4)
(58.9)

134.3

5.8

Increase in revenue
due to sales volume:
(20.4)
Copper 
28.5 
Gold 
(2.3)
Silver 
5.8 
Total 

Increase in revenue
due to higher 
commodity prices:
Copper 
Gold 
Silver 
Total 

 176.3
4.2
2.0
182.5

Underlying NPAT 
for the year ended
31 December 2016

Sales
volume

Sales
price

TCRC and
royalties

Mine costs

Other costs

Tax and
interest

Underlying NPAT 
for the year ended
31 December 2017

Net revenue
2017 revenue was $188.2 million higher when compared to 2016 as solid production  
from Prominent Hill benefited from buoyant copper prices. Contained copper sold of  
112,288 tonnes was comparable to 2016 while gold sales of 132,285 ounces were  
21 percent higher. 

In 2017 the average A$ copper price was 25 per cent higher than in 2016, while the  
average A$ gold price was two per cent higher.

Treatment charges and refining costs (TCRC) were lower by $12.0 million as a result  
of improved trading terms and lower refining charges.

Cost of goods sold

Cost of goods sold in 2017 was higher than the previous year by $59.8 million resulting from 
an increased proportion of underground ore, higher power costs and royalties attributable to 
the higher revenue base.

Mining costs were $20.6 million lower in 2017 as a result of the reduction in open pit mining 
activity ($41.0 million), offset by increased higher grade underground mining of $20.4 
million. As a result of the declining open pit mine strip ratio (approximately 0.5:1 in 2017 
compared to 1:1 in 2016), the deferral of mining costs to the balance sheet was also lower  
by $32.6 million in 2017.

Processing costs increased by $7.7 million, primarily due to higher power prices. 

Royalties expenses increased by $10.7 million due to higher sales compared to the  
prior period.

During the year, 10 million tonnes of ore were milled (2016: 9.8 million tonnes), including  
2.5 million tonnes of underground ore (2016: 2.1 million tonnes). The cash inventory 
adjustment of $68.7 million in 2017 was $16.7 million lower than 2016 as open pit  
mining concluded in line with the mine plan and was partially displaced by increased 
underground ore production. 6.1 million tonnes of open pit ore was stockpiled compared  
to 7.7 million tonnes in 2016.

ANNUAL AND SUSTAINABILITY REPORT 2017 
 
f InAnC I A L  R eV IeW

3 1

Other costs
Exploration and evaluation costs of $16.3 
million were incurred during the year in 
progressing the West Musgrave Project and 
other exploration earn-in arrangements 
and $5.0 million was incurred in relation 
to corporate development, including 
due diligence costs associated with other 
non-organic growth opportunities. During 
the year $3.0 million in government grant 
funding was received relating to the 
development of the Concentrate Treatment 
Plant (CTP) technology.

Corporate general and administration costs 
of $31.5 million comprise costs incurred 
in direct support of operating activities 
($11.0 million) and those related to largely 
corporate activities ($20.5 million). Costs 
allocated to support operating activities 
cover a range of services and expenditure 
provided at the corporate office to 
the Prominent Hill, Carrapateena, and 
Exploration and Development operating 
segments. These include costs for sales 
and marketing, strategic sourcing, business 
services, information technology and 
insurance. 

The income tax expense of $98.3 million 
was higher than the previous year as a 
result of the higher profit and the benefit  
of tax losses recognised in the previous year. 

Net depreciation and amortisation expense 
increased by $10.0 million compared to 
2016. This was predominantly due to the 
higher value ore milled.

Cash balance and cash flow

342.9

197.0

n
o

i
l
l
i

m
$

1,000

900

800

700

600

655.7

67.0

5.2

729.4

Opening January 
2017 cash balance

Operating
activities

Investing
activities

Financing
activities

Effect of exchange
rate changes

Closing December
2017 cash balance

Operating cash flows
Operating cash flows of $342.9 million for the year were $18.8 million higher than in 2016, 
with the benefit of higher commodity prices partially offset by tax payments. Customer 
receipts were $126.3 million higher as a result of the higher copper price realised during the 
year. Income tax payments of $79.2 million were made during the year representing the tax 
payment for 2016 of $65.5 million and the commencement of PAYG instalments for 2017  
at the end of the year of $13.7 million. 

Investing cash flows
Net investing cash flows of $197 million represent payments for property plant and 
equipment and mine development at Prominent Hill, development costs at Carrapateena,  
and receipts from the sale of surplus mining equipment.

The payments incurred related to:

 / $118.7 million in capitalised Carrapateena mine development costs

 / $16.7 million in CTP study costs 

 / $46.9 million in underground operation mine development costs 

 / $19.6 million of other sustaining capital expenditure

 / $4.9 million in receipts from equipment sales.

Financing activities
Cash outflows relating to financing activities of $67.0 million comprised $59.7 million in 
dividend payments to shareholders and $7.3 million relating to the purchase of shares to 
settle the Company’s share based compensation liabilities. 

Since the end of the financial year, the Board of Directors have resolved to pay a final 
dividend amounting to $41.8 million in respect of the 2017 financial year. This final dividend 
will be fully franked for Australian tax purposes. 

 
 
3 2

Balance sheet
Total equity increased by $162.0 million during the year to $2,516.3 million. This was mainly 
due to the current year profit of $231.1 million, which was partially offset by $59.7 million of 
dividends and a $7.2 million (net of tax) decrease in the value of gold derivative contracts.

The movement in the net assets of the Company since 31 December 2016 is provided below:

Movement in net assets since 31 December 2016

189.8

52.5

99.7

Increase in trade 
receivables as a 
result of timing 
of sales

PP&E reduction 
due to open pit 
mining partially 
offset by capital 
expenditure at 
Carrapateena

20.6

19.7

Reduction in 
other assets 
mainly related to 
amortisation of 
the lease 
receivable and 
sale of surplus 
mining equipment

Increase in 
trade payables 
predominantly 
due to increase 
in accruals for 
Carrapateena

14.0

2,516.3

Increase in tax 
and other 
liabilities:
current tax 
provision of 
$101.1m for 
2017 will be paid 
in 2018

2,800

2,600

2,400

2,354.3

73.7

Increase in
inventory as a 
result of open pit 
ore stockpiles

2,200

n
o

i
l
l
i

m
$

2,000

200

0

Net asset 2016

Cash

Inventory

Trade
receivables

Property plant 
and equipment 
including Carrapateena

Other assets

Trade payables

Tax and other
liabilities

Net assets 2017

The Company ended the year with a cash balance of $729.4 million and undrawn debt 
facilities of $100 million, with an uncommitted facility for $300 million, providing the liquidity 
and flexibility for the Company to execute its growth strategy.

Inventories at 31 December 2017 were $746.9 million, of which non-current ore stockpiles 
increased by $124.4 million in line with the accelerated open pit mining strategy. A net 
realisable value write back of $16.8 million was applied to the low grade gold ore stockpiles 
(the estimated net realisable value is based on revenue expected to be derived from metal 
contained in the ore stockpiles, based on the processing operational plan, after adjustment 
for incremental costs). As open pit ore stockpiles are consumed following pit closure in 
2018, the costs of mining open pit ore and the related capitalised depreciation (collectively 
comprising open pit ore inventory) will be amortised progressively and recognised in the 
income statement.

Trade receivables at the end of the year of $121.9 million were higher at 31 December 2017 
due to the timing of shipments. 

Property plant and equipment (PP&E) decreased during the year mainly due to depreciation 
of Prominent Hill PP&E assets by $323.5 million which was partially offset by capitalised 
underground development costs of $46.9 million, development capital expenditure at 
Carrapateena of $145.4 million and sustaining capital expenditure of $19.6 million. The 
Carrapateena Exploration assets of $284.9 million were reclassified as PP&E in 2017.

ANNUAL AND SUSTAINABILITY REPORT 2017 
 
f InAnC I A L  R eV IeW

3 3

Risks
OZ Minerals’ operating results, financial results and performance are subject to a wide range 
of risks and uncertainties (both opportunities and threats) that can be financial, political, 
operational and environmental. The Consolidated Entity manages and mitigates these 
risks, where appropriate, to minimise adverse impacts from threats and maximise beneficial 
outcomes from opportunities. OZ Minerals’ flat corporate governance structure and direct 
communication channels ensures timely responses to emerging risks. Our risk management 
framework emphasises risk aware decision-making to achieve enhanced business outcomes.

The Board has oversight responsibility and determines the overall risk appetite for the 
Consolidated Entity. OZ Minerals operates a risk management system with multiple lines of 
defence. Line managers, operational staff and corporate functions establish standards for 
managing risk and the Board and its committees review risk management as a part of their 
oversight and inspection role. The Company identified risks and mitigating factors that have 
the potential to affect future operating and financial performance (provided in the table 
below). Developing mitigating controls for threats minimises the adverse impact on the 
Company’s performance, but the Company’s future operations and financial performance 
may be significantly impacted should any of these elements fail or be disrupted.

Risks and mitigating factors that could affect oZ Minerals’ future operating and financial performance

Context 

Strategic risks

One operating asset 
Operating only one producing  
asset exposes the Consolidated  
Entity to concentration risks. 

Risk 

Mitigation/actions

The Prominent Hill mine generates most of the  
Company’s income and cash flow.

Prominent Hill now operates an integrated underground mine with multiple 
areas. This mitigates sole dependence on the open pit. 
The Company has an active program which focuses on using trigger action 
response plans to maintain the ongoing stability of the open pit walls. The 
OZ Minerals maintenance and engineering team have developed robust 
procedures and practices to ensure they are operating the processing plant 
with minimal disruption and at high throughput levels. 
Concentrate is transported to Australian destinations using road and 
rail and it is shipped to overseas destinations from the port of Adelaide. 
Spillage risks (and environmental impact) are mitigated by using customised 
containers with lids and rotainers to load concentrate onto ships. 

The Company is developing a power strategy to align with its business 
strategy, particularly in the Gawler Craton.

OZ Minerals has a clear pipeline of projects and gated plans which ensure a 
disciplined approach to leverage the large resource base.
OZ Minerals evaluates each opportunity with due care and relies on expert 
opinion, both internal and external where necessary, to ensure that any 
potential transaction will be value accretive to the Company’s shareholders.
OZ Minerals’ maintains a segregated approach to the identification 
and review of potential transactions and projects to ensure appropriate 
governance is applied over the assessment of financial risk and returns.

Continuity of power supply
The Prominent Hill mine and 
Carrapateena project are both 
located in South Australia, which 
experienced significant power 
disruption in 2016.

Growth strategy 
A key element of the Company’s 
growth strategy is growth through 
acquisition or development of 
value accretive copper assets. 

OZ Minerals competes with other power users for 
competitively-priced uninterrupted power supply within 
the prevailing environment of volatile electricity prices 
and power outages in the state.
Prominent Hill power supply contracts will be 
renegotiated in 2018. The Carrapateena power 
infrastructure and supply agreements are currently  
being developed.

The existence of a large resource at the Prominent Hill 
operation, Carrapateena, Khamsin, Fremantle Doctor, 
West Musgrave (JV), other exploration joint ventures 
and prospectivity of the Gawler Craton.
In a climate of prospective commodity prices and 
expected long-term shortages in copper supplies,  
OZ Minerals competes with other entities to 
acquire and develop projects that generate superior 
shareholder value. 

3 4

Context 

Risk 

Mitigation/actions

Operational risks

Project execution
Successful execution of OZ 
Minerals’ growth strategy depends 
on its ability to deliver projects on 
time and within budget and scope. 

Mine development projects are inherently exposed  
to risks of scope definition, cost estimation accuracy 
and other external factors which present threats  
and opportunities to a project’s cost, efficiency  
and profitability. These are not all within the 
Company’s control.

OZ Minerals ensures its projects go through a process of internal and 
external independent review to verify the engineering, technical and 
financial scope definitions and other assumptions. 
The Company manages project costs by sound procurement practices  
and governance.

Contract management
Many aspects of the Prominent Hill 
operations, Carrapateena project 
and the Company’s exploration 
and development activities are 
conducted by contractors.

The production and capital costs incurred by OZ 
Minerals are subject to a variety of factors, including 
and not limited to: 
 / fluctuations in input costs determined by global 

markets (e.g. electricity, fuel and other key 
consumables)

OZ Minerals engages with reputable contractors who have the technical 
ability, proven track record and financial capability to execute its projects. 
Competitive procurement processes and embedded performance  
structures in contracts ensure that the Consolidated Entity mitigates  
risks of non-performance by contractors, while deriving the highest value  
for shareholders.

Geotechnical failure
The open pit and underground 
mining operations remain subject 
to geotechnical uncertainty and 
adverse weather conditions. 
These could manifest as pit wall 
failures or rock falls, mine collapse, 
cave-ins or other failures to 
mine infrastructure and reduced 
productivity.

Estimates of reserves  
and resources
Reserve and resource assessments 
involve areas of estimation and 
judgement.

Customer management 
OZ Minerals markets high 
grade copper concentrate to 
overseas and local customers. 
Any disruption to the logistics 
chain from production through to 
delivery to the customer can result 
in significant financial impact.

Market risks

Commodity prices and  
exchange rates

 / changes in economic conditions that impact on  
the margins required by contracting partners
 / changes in mining assumptions, such as ore  

grades and pit designs. 

The operating results of OZ Minerals depend 
on the performance of contractors.

The open pit depth will increase until mining ceases 
in 2018 and the concurrent mining of multiple 
underground areas will lead to increased underground 
mining activities.

OZ Minerals operates programs that monitor and respond to changes  
in geotechnical structures in the open pit, underground, and tailings  
storage facility to ensure the safety of personnel working in the affected 
areas. Where possible, activities are undertaken to reduce the risk of 
geotechnical failure. 

The preparation of these estimates involves application 
of significant judgment and no assurance of mineral 
recovery levels or the commercial viability of deposits 
can be provided. The Company reviews and publishes 
its reserves and resources annually.

A concentrate’s marketability depends on global mine 
supply, smelter demand, concentrate grades and 
impurities in the product. Prominent Hill concentrate 
has a high copper grade, containing gold and silver as 
well as fluorine and uranium impurities. 
Regulators in various jurisdictions may change limits 
or their approach to impurity assessment guidelines 
in concentrate. This can impede the importation of the 
concentrate into those jurisdictions. These changes 
may result in additional requirements related to the 
ore, tailings or concentrates, or result in challenges 
with selling, transporting or importing Prominent Hill 
concentrates in various jurisdictions.

OZ Minerals does not control copper, gold, silver or  
other base metal prices in the global commodities 
market or the Australian/US dollar exchange rate. 

The reserve and resource estimates and mine plans have been carefully 
prepared by the Company in compliance with the Joint Ore Reserves 
Committee (JORC) guidelines and in some instances are verified by 
independent mining experts or experienced mining operators. 
The estimation of the Company’s reserves and resources involves analysis 
of drilling results, associated geological and geotechnical interpretations, 
operating cost and business assumptions, and a reliance on commodity 
price and exchange rate assumptions. 
The Company’s production plan is based on the published reserves  
and resources.

OZ Minerals has developed customised solutions in partnership with 
customers. These match smelter demand and production from the 
Prominent Hill mine to concentrate grade and timing, along with a range  
of controls to manage the fluorine and uranium impurities. 
OZ Minerals has multiple marketing options including, but not limited to, 
ore blending, concentrates blending and additional flotation treatment in 
the processing plant.  
OZ Minerals maintains a diverse customer portfolio to mitigate against the 
risk of regulatory changes to importation requirements.

OZ Minerals manages its exposure to copper price on sales by entering into 
derivative contracts that settle at the same time as the contractual quotation 
period for the sale.
OZ Minerals has entered into gold derivative contracts to fix gold price on  
60 per cent of the gold expected to be sold from Q3 2018 to 2021.
OZ Minerals’ functional currency is the Australian dollar and US dollars are 
only held to meet US dollar commitments. 
OZ Minerals does not take active steps to hedge currency risk.
OZ Minerals operates mines with a low cost of production relative to global 
copper producers. This ensures resilience to low commodity prices and an 
ability to maximise margins during high commodity prices.

ANNUAL AND SUSTAINABILITY REPORT 2017f InAnC I A L  R eV IeW

3 5

Context 

Risk 

Mitigation/actions

Safety, health, environment, and community (SHEC )

Operational safety failures 
resulting in injury or fatality

OZ Minerals undertakes operations in areas which 
may pose a safety risk including, but not limited to, 
handling explosives, underground operations subject 
to rock fall, confined spaces, areas where heavy and 
light vehicles interact, manual handling and operating 
at height. 
A fly-in fly-out operation also introduces risk that is 
inherent in air travel, as contractors and employees are 
regularly required to commute by aircraft. 

OZ Minerals is committed to the safety of its people and all work processes 
have a high safety focus.
OZ Minerals operates in partnership with its contractors and is actively 
building a shared safety culture between employees and the contractors 
who work at our sites. 
Active engagement at all levels of operations and with senior leadership 
teams, combined with activities focused on identifying and eliminating 
drivers of safety incidents, has delivered significant successes and resulted 
in a sustained reduction in the severity of injuries. 

Mine rehabilitation
The Company operates under 
a range of environmental 
regulations and guidelines.

Environmental regulations and occupational health 
and safety guidelines for certain products and by-
products produced or to be produced are generally 
becoming more onerous. 

Maintenance of community 
relations and good title

The Company works closely with local communities, 
particularly the Indigenous communities in South 
Australia. 
Agreements with the Commonwealth of Australia 
govern the terms of access to areas located within 
the ‘green zone’ of the Woomera Prohibited Area. 

Climate change

Severe climate change can cause disruption to mine 
production, logistics and water supply as a result of 
extreme weather events.
As regulatory agencies respond to climate change 
over the medium term, costs of inputs may rise and 
restrictions may be placed on how certain resources 
are provided, transported and used, which may impact 
our licence to operate.
Climate change combined with regulatory changes 
also has the potential to be a catalyst  for growth 
in industries that require copper and could result in 
upward pressure on copper prices.

The Company is required to close its operations and rehabilitate the land 
affected by the operation at the conclusion of mining and processing 
activities. 
Estimates of these costs are reflected in accordance with AASB 137 
Provisions, Contingent Liabilities and Contingent Assets as provisions in the 
financial statements. Management seeks external assistance and review, 
where appropriate, to estimate these costs.
However, actual closure costs may be higher or lower than estimated as 
these are costs to be incurred following the closure of mining operations 
over a long time period.

Access and compensation agreements are in place with communities 
affected by mining activities. These are reviewed and updated from time  
to time. 
The Company actively engaged with the traditional owners of Carrapateena 
and this culminated in a partnering agreement with the Kokatha Aboriginal 
Corporation.
The Company has controls in place to ensure compliance with the Deed and 
relies on good relations with the Australian Defence Department regarding 
defence operations in the Woomera region and any potential impact these 
may have on our mining operations.
The Company also relies on the maintenance of good title over the 
authorisations, permits and licences which allow it to operate. Loss of good 
title or access due to challenges instituted by issuers of authorisations, 
permits or licences, such as government authorities or land owners, may 
result in operational disruptions.

The Company’s governance structure and risk management process 
specifically focus on climate change risks to identify key risks and develop 
response plans.
OZ Minerals is committed to reducing the energy intensity of our operations, 
developing innovative practices in relation to chemical processing and being 
more efficient in our transportation and processing activities. 
The Company’s power strategy will consider renewable energy, power 
security and reliability for its operations.

Business strategies, prospects and likely developments 
This report sets out our business strategies and prospects for future financial years; likely 
developments in OZ Minerals’ operations; and the expected results of our operations in 
future financial years. We provide this information to help shareholders make an informed 
assessment about the business strategies and prospects for the Consolidated Entity’s future 
financial years. We have not included details that could give rise to a likely material detriment 
to OZ Minerals, such as information that is commercially sensitive, confidential or could give  
a third party a commercial advantage. 

3 6

ANNUAL AND SUSTAINABILITY REPORT 2017ReM Un eR A tIo n o VeR V IeW  AnD   RePoR

t

3 7

Remuneration 
Overview  
and Report

3 8

Remuneration  
Overview

Remuneration to executive key management personnel in 2017

Full details of the audited cost to the Company of executive key management personnel (KMP) remuneration, calculated in accordance  
with the accounting standards and the Corporations Act 2001, are available in Table 11 of the Remuneration Report (p. 51).

We’ve prepared the table below (unaudited), which includes details of remuneration actually delivered to executive KMP in 2017,  
to be transparent with our shareholders regarding remuneration outcomes. 

Remuneration to executive key management personnel (unaudited)

Current

Andrew Cole
Managing Director  
and CEO

Mark Rankmore
Head of People  
and Performance

Warrick Ranson(c)
Chief Financial Officer

Former

Luke Anderson(d)
Chief Financial Officer

Robert Fulker(e)
Chief Operating Officer

Cash salary

$

Short term 
incentives

$

739,976

626,250

730,384

671,250

386,832

380,542

38,052

388,738

495,785

436,694

470,874

211,200

211,200

–

–

375,900

328,000

346,000

2017

2016

2017

2016

2017

2017

2016

2017

2016

Long term 
incentives

Termination 
Benefits(a)

Super- 
annuation(b)

Total 
remuneration

$

–

–

–

–

–

–

–

–

–

$

–

–

–

–

–

7,157

–

142,486

–

$

$

10,024

1,376,250

19,616

1,421,250

13,168

18,645

3,615

5,012

29,215

10,276

19,364

611,200

610,387

41,667

400,907

900,900

917,456

836,238

(a) Termination benefits include the value of  benefits such as payment for notice period and leave balances paid upon termination.
(b) Represents direct contributions to superannuation funds based on quarterly contribution limits under Super Guarantee Charge regulations (in 2016 contributions were based on annual contribution 

limits). Amounts greater than the maximum superannuation level have been paid and included in cash salary.

(c) Appointed 4 December 2017.
(d) Resigned effective 29 September 2017.
(e) Ceased to be KMP from 23 November 2017 and resigned on 10 February 2018.

ANNUAL AND SUSTAINABILITY REPORT 2017ReM Un eR A tIo n o VeR V IeW

3 9

Letter from the Chairman of the Human  
Resources and Remuneration Committee

Dear Shareholders,

On behalf of the Board of Directors, I am 
pleased to provide you with the 2017 
Remuneration Report for OZ Minerals.

2017 was a successful year for the Company.  
We achieved or bettered our production 
and cost guidance, extended the mine 
life at Prominent Hill and commenced the 
development of Carrapateena. We also 
advanced our growth strategy whilst at 
the same time ensured that the company’s 
balance sheet remained strong. The success 
of the Company during the year was a 
direct result of the talent, hard work and 
dedication of the Company’s employees  
and stakeholders. More detail on the 
Company’s performance is contained in  
the Directors Report.  

Remuneration outcomes in 2017
As in previous years, we have continued to 
seek to ensure that remuneration outcomes 
reflect the performance of the Company 
and are aligned to shareholder’s experience.  
In addition we sought to ensure that 
executive remuneration remained market 
competitive, easy to understand and could 
be clearly communicated to executives and 
shareholders.

Key outcomes for 2017 include:

 / Executive salaries were held at 2016 levels 

during 2017

 / The strong performance of the Company 
against the KPIs set by the Board for the 
2017 year supported short term incentive 
awards to KMPs on average 84.5% of 
their maximum annual short term incentive 
opportunity. Details of the KPI outcomes 
can be found in section 3.2 of the 
Remuneration Report  

 / Reflecting the strong performance of the 
Company and his leadership during 2017, 
the Board determined to award 83.5% of 
the maximum annual short term incentive 
opportunity to the Managing Director and 
Chief Executive Officer, Andrew Cole 

 / The lapsing of 382,251 performance rights 
following the resignations of KMPs Luke 
Anderson and Robert Fulker. 

Developments for remuneration 
for 2018 and beyond
As activity picks up in the mining sector 
and the Company enters the next phase of 
its growth journey, we recognise the need 
to continue to ensure reward mechanisms 
are appropriately aligned. The Board also 
considers it vital that Key Management 
Personnel and other critical senior 
management in the business are retained 
during the construction and commissioning 
of Carrapateena.

Accordingly the Board approved:

 / a remuneration review for the Company  
for 2018. The last company-wide review 
was in 2012 

 / fixed remuneration increase for Managing 

Director and CEO, Andrew Cole to 
$800,000 per annum. This recognises 
the increased scale and complexity of 
the Company and its operations, and 
positions his remuneration competitively 
with comparable companies. His short term 
incentive opportunity was also increased 
from 100% to 120% for 2018. His fixed 
remuneration has not been increased since 
joining the Company in 2014

 / fixed remuneration increase for Head of 

People and Performance, Mark Rankmore, 
to $470,000 per annum to reflect increases 
in the scope of his role

 / no other increases to KMP fixed 

remuneration

 / one-off issue of performance rights in 2018 
to ongoing KMP (other than Andrew Cole) 
under an Alignment Plan. The number of 
rights issued will represent 20% of the 
KMP’s fixed remuneration with vesting 
subject only to continuing employment on 
the second anniversary of the award.

During 2017 the Company also commenced 
a review of its executive remuneration 
incentive structure to ensure that it continues 
to align the interests of executives with those 
of shareholders. This review has highlighted 
some opportunities for improved alignment 
which will be further developed during 2018 
with a view to implementation in 2019. We 
intend to consult with shareholders on these 
proposals prior to implementation.

Meanwhile, following a review of the 
existing Long Term Incentive plan Total 
Shareholder Return comparator group 
the Board has determined to amend the 
comparator group of companies to give 
better alignment to the Company. 

Seven new comparator companies will 
be added to the peer group consisting 
of Independence Group, Western Areas, 
Avanco Resources, First Quantum Minerals, 
Antofagasta, Freeport McMoRan and 
Dundee Precious Metals. Two companies 
will be removed from the peer group, being 
MMG Limited and Katanga Mining. These 
changes will apply to the 2018 award.

The Board considers this group better reflects 
the growth in the scale and complexity of 
the operations of the Company. The Board 
also recognises that a larger comparator 
group is more reflective of shareholder 
opportunity whilst also reducing the volatility 
of the outcome for executives. 

Finally, the Board decided not to increase the 
fees paid to Non-executive Directors in 2017. 
During 2018 it is intended to undertake 
a review of the roles and responsibilities 
of the Board and its committees and their 
respective fees. Board and committee fees 
have not been increased since 2012.

The Board is determined to continue our 
focus on the longer-term business strategy 
and deliver consistent, well-aligned and 
transparent remuneration outcomes.

Thank you for your ongoing support  
of OZ Minerals.

Yours sincerely, 

Tonianne Dwyer  
Chairman Human Resources and 
Remuneration Committee 

Adelaide   

22 February 2018

 
 
4 0

Remuneration Report

The Directors of OZ Minerals Limited 
present the Remuneration Report for the 
Company and the Consolidated Entity for 
the year ended 31 December 2017. This 
Remuneration Report forms part of the 
Directors’ Report and has been audited in 
accordance with the Corporations Act 2001.

1.0 Key management personnel 
The Consolidated Entity’s key management 
personnel (KMP) during 2017 are listed in 
Table 1, and consist of the non-executive 
directors (NED) and executive KMP who 
are accountable for planning, directing and 
controlling the affairs of the Company and 
its controlled entities.

table 1 – KMP during 2017

Name

Position

Period as KMP during the year

Executive KMP

Andrew Cole

Managing Director and CEO

All of 2017

Mark Rankmore

Head of People and Performance

All of 2017

Warrick Ranson

Chief Financial Officer

Appointed 4 December 2017

Former

Luke Anderson

Chief Financial Officer

Resigned 29 September 2017

Robert Fulker

Chief Operating Officer

Ceased to be KMP on 23 November 2017

Non-executive directors 

Rebecca McGrath

Independent Chairman(a)

Julie Beeby

Independent NED

All of 2017

All of 2017

Tonianne Dwyer

Independent NED

Appointed 22 March 2017

Charles Lenegan

Independent NED

All of 2017

Peter Tomsett

Peter Wasow

Former 

Independent NED

Independent NED

Appointed 22 March 2017

Appointed 1 November 2017

Neil Hamilton 

Independent Chairman

Retired 24 May 2017 

Paul Dowd

Independent NED

Retired 24 May 2017

(a) Rebbeca McGrath was elected to be an Independent Chairman by shareholders in the Annual General Meeting on 24 May 2017.

2.0 Remuneration policy

table 2 – Remuneration principles

2.1 Overview of remuneration 
policy and practices
The remuneration principles outlined in 
Table 2 demonstrate the links between 
remuneration and business strategies 
and their impact on OZ Minerals actual 
remuneration arrangements. The overriding 
business objective is to achieve superior 
returns compared to the Company’s peers  
in the resources sector. 

Business needs and 
market alignment

OZ Minerals remuneration policy is focused on achieving our corporate objectives. 
Remuneration is set having regard to market practices and aligned with achieving 
shareholder returns.

Simplicity and equity

OZ Minerals remuneration philosophy, policy, principles and structures are simple to 
understand, communicate and implement, and are equitable across the Company 
and its diverse workforce.

Performance and 
reward linkages

Market positioning  
and remuneration mix

Well-designed remuneration policy supports and drives Company and team 
performance and encourages the demonstration of desired behaviours. Performance 
measures and targets are few in number, outcome-focused and customised at an 
individual level to maximise performance, accountability and reward linkages.

Fixed remuneration is set at a competitive level and positioned to take in to account 
the challenges of attracting and retaining high performers in business critical roles, 
particularly in the mining industry. The ‘at-risk’ components of remuneration depend 
on challenging goals and are focused on incentivising executive KMP to achieve 
business critical objectives and shareholder returns. 

Talent management 

Remuneration policy is tightly linked with our performance and talent management 
frameworks to reward and recognise employees who achieve their role 
accountabilities and to engage future leaders.

Governance, 
transparency and 
communication with 
shareholders

OZ Minerals is committed to developing and maintaining remuneration policies and 
practices that maximise value. We will openly communicate these to shareholders 
and other relevant stakeholders, and will always be within legal, regulatory and 
industrial requirements. The Board has absolute discretion to develop, implement and 
review key aspects of remuneration. 

ANNUAL AND SUSTAINABILITY REPORT 2017ReM Un eR A tIo n  RePoR t

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2.2 Remuneration consultants 
The Board of Directors and Human Resources and Remuneration Committee seek and 
consider advice from independent remuneration consultants to ensure that they have all 
the relevant information at their disposal to determine executive KMP remuneration. The 
engagement of remuneration consultants is governed by internal protocols that set the 
parameters around the interaction between management and consultants to minimise the 
risk of any undue influence and ensure compliance with the Corporations Act 2001. 

PROTOCOL S

Under the protocols adopted by the Board and Human Resources and Remuneration 
Committee:

 / remuneration consultants are engaged by and report directly to the Board or the Human 

Resources and Remuneration Committee

 / the committee must, in deciding whether to approve the engagement, have regard to any 
potential conflicts of interest including factors that may influence independence such as 
previous and future work performed by the Committee and any relationships that exist 
between any Executive KMP and the consultant

 / communication between the remuneration consultants and executive KMP is restricted to 

minimise the risk of undue influence on the remuneration consultant

 / where the consultant is also engaged to perform work that does not involve the provision 
of a remuneration recommendation, prior approval of the Board or Human Resources and 
Remuneration Committee must be obtained in certain circumstances where the consultant 
continues to be engaged to provide remuneration recommendations.

The Board and the Human Resources and Remuneration Committee use remuneration 
consultants’ advice and recommendations from time to time. The Board makes its decisions 
after it considers the issues and the advice from Human Resources and Remuneration 
Committee and consultants.

During 2017, PwC were engaged to review the Company’s executive remuneration 
framework. Their observations will form the basis of further work to be undertaken during 
2018 to ensure that remuneration arrangements continue to align with shareholder interests 
in pursuit of the Company’s strategy. The work completed did not constitute a remuneration 
recommendation in accordance with the Corporations Act 2001. The fee for work conducted 
was $108,834 (including GST).

4 2

2.3 Review of executive KMP remuneration 
Executive KMP remuneration levels are reviewed annually by the Board with help from the 
Human Resources and Remuneration Committee and external remuneration consultants as 
required. The review makes sure that executive KMP remuneration remains consistent with 
the Company’s remuneration policies and guiding principles, and considers:

 / the Company’s remuneration policy and practices

 / relevant market benchmarks using salary survey data from the Australian industrial  

and resources sectors

 / the skills and experience required of each role in order to grade positions accurately  

and attract high calibre people

 / individual performance against role expectation, set objectives, leadership behaviours  

and development plans

 / Company strategy, business plans and budgets.

2.4 Executive KMP remuneration components
table 3 – Remuneration mix 

Total fixed remuneration (TFR)

At-risk remuneration

Short term incentive (STI)

Long term incentive (LTI)

The regular base reward that reflects the job size, role, 
responsibilities and professional competence of each 
executive, according to their knowledge, experience 
and accountabilities and considering external market 
relativities.

A variable, performance based, annual cash incentive 
plan designed to reward high performance against 
challenging, clearly defined and measurable objectives. 
These are based on a mixture of targets and are set to 
incentivise superior performance with specific targets or 
metrics in each category.

The equity component of the at-risk reward opportunity 
which is linked to the Company’s medium to long 
term TSR and share price performance. A three-year 
performance period applies.

The mix of fixed and at-risk remuneration varies depending on the role and grading of 
executives as well as the performance of the Company and individual executives. More senior 
positions have a greater proportion of at-risk remuneration. If maximum at-risk remuneration 
is earned, the ratio percentage of fixed to at-risk remuneration would be as follows.

executive KMP remuneration mix

Managing Director and CEO

28.6%

28.6%

42.8%

Head of People and Performance

43.5%

26.1%

30.4%

Chief Operating Officer

Chief Financial Officer

37.0%

37.0%

29.6%

29.6%

33.4%

33.4%

Fixed

STI

LTI

ANNUAL AND SUSTAINABILITY REPORT 2017ReM Un eR A tIo n  RePoR t

4 3

table 4 – Questions and answers about executive KMP remuneration

Total fixed remuneration (TFR)

What is included in total fixed remuneration?

When and how is fixed remuneration reviewed?

Short term incentive (STI)

An executive KMP’s total fixed remuneration comprises salary and certain other benefits (including statutory 
superannuation contributions) that may be taken in an agreed form, such as cash, leased motor vehicles and additional 
superannuation, provided that no extra cost is incurred by the Company for these benefits.

Fixed remuneration is reviewed annually. Any adjustments to the fixed remuneration for the Managing Director  
and CEO and other executive KMP must be approved by the Board after recommendations by the Human Resources 
and Remuneration Committee. The Company seeks to position the fixed remuneration between the 50th and 75th 
percentile (or higher) of remuneration for business critical roles in comparable companies within the mining market and 
where appropriate, the broader general industry market.

Why does the Board think an STI plan is appropriate?  Variable performance based remuneration strengthens the link between pay and performance. The purpose of these 

What are the performance conditions?

programmes is to make a large proportion of the total market reward package subject to meeting various targets 
linked to OZ Minerals’ business objectives. The use of variable performance based remuneration avoids much higher 
levels of fixed remuneration and is designed to focus and motivate employees to achieve outcomes beyond the 
standard expected in the normal course of ongoing employment. A reward structure that provides variable performance 
based remuneration is also necessary as a competitive remuneration package in the Australian and global marketplace 
for executives.

The performance conditions that determined STI outcomes in 2017 were: (a) Company key performance indicators (KPIs) 
and (b) individual KPIs.
The Company KPI hurdle in 2017, accounts for 90% of the STI award for the Managing Director and CEO and  
50% of the STI award for other KMP and the balance was attributable to individual KPIs.

(a) Company KPIs
Company KPIs are set and weighted at the beginning of each year. They are designed to drive successful and sustainable 
financial and business outcomes, with reference to the Board approved corporate objectives, plans and budget for 
the year. The key areas of focus in 2017 included improving the Company’s operational and financial performance, 
sustainability performance and progressing strategic growth objectives. 

table 4.1 – Company KPIs in 2017 that applied to executive KMP

KPI category 

KPI detail

% weighting

Operational and financial

EBITDA, net cash flow, corporate efficiency

Sustainability

safety improvement, safety behaviours, leadership effectiveness

Strategy and growth

concentrate production and sales, Carrapateena development, 
growth pipeline 

40

20

40

b) Individual KPIs
Individual KPIs vary for each executive KMP based on their accountabilities. 
The Board assesses and sets the KPIs for the Managing Director and Chief Executive Officer award, and the Managing 
Director and Chief Executive Officer assesses and sets the KPIs for each of the other executive KMP in consultation with 
the Board. 

Is there an overriding financial performance  
condition or other condition?

Yes. The availability of the STI Pool is at the discretion of the Board, which takes into account the interests of the 
Company and shareholders. The Board can choose not to pay or reduce the amount of the STI otherwise payable. 

How is the STI structured to reward  
exceptional performance? 

The STI plan is designed to reward executive KMP at three pre-determined performance levels – threshold,  
target and maximum.

Threshold performance represents the minimum level of performance required for an STI award to vest.

Target performance

represents the achievement of planned or budgeted performance,  
set at a challenging level.

Maximum performance represents outstanding performance, set at a stretch level.

4 4

What is the value of the STI opportunity?

table 4.2 – the target and maximum StI reward opportunity for executive KMP in 2017

Executive KMP

Andrew Cole

Luke Anderson(a)

Robert Fulker

Mark Rankmore

Warrick Ranson(b)

Target STI 
(as % of TFR)

Maximum STI 
(as % of TFR)

70

56

56

42

56

100

80

80

60

80

(a) Resigned 29 September 2017, ineligible for STI payment.
(b) Appointed 4 December 2017, ineligible for STI payment.

The Managing Director and CEO assesses the business performance of executive KMP throughout the year for progress 
and improvement, to arrive at a summary assessment at year end for discussion with the Human Resources and 
Remuneration Committee and the Board. The Board also reviews the performance assessment of all executives who 
report directly to the Managing Director and CEO, with a view to understanding, endorsing and/or discussing individual 
circumstances, performance, leadership behaviours and future development. The Human Resources and Remuneration 
Committee and the Board assess the performance of the Managing Director and CEO against the performance targets 
and objectives set for that year.
The Board considers the method of assessing STI as described above to be appropriate as the Managing Director and 
CEO has oversight of his direct reports and the day to day function of the Company, whilst the Board and Human 
Resources and Remuneration Committee have overall responsibility for determining whether Executive KMP have  
met the performance targets and objectives set for that year.

If an executive leaves OZ Minerals then the Good Leaver Policy may apply (subject to the executive’s contract) and,  
if the requirements are met, the STI may be granted on a pro rata basis in relation to the period of service completed. 
This is at the Board’s discretion and conditional upon the individual performance of the relevant executive.

The Company believes that a LTI plan can:
 / focus and motivate employees to achieve outcomes beyond the standard expected in the normal course of ongoing 

employment

 / ensure that business decisions and strategic planning take into account the Company’s long term performance
 / be consistent with contemporary remuneration governance standards and guidelines 
 / be consistent and competitive with current practices of comparable companies
 / create an immediate ownership mindset among the executive participants, linking a substantial portion of their 

potential total reward to OZ Minerals’ ongoing share price and shareholder returns.

How is STI assessed?

What happens to STI awards when  
an executive ceases employment?

Long term incentive (LTI)

Why does the Board consider  
a LTI Plan to be appropriate?

How is the award delivered? 

The LTI is granted using performance rights under the OZ Minerals LTI plan (detailed below).

Was a grant made in 2017?

A grant was made on 27 January 2017 to all continuing participants in the LTI plan. The number of performance 
rights granted to each executive was calculated as their LTI dollar opportunity divided by the adjusted five-day volume 
weighted average price of OZ Minerals as at the start of the performance period. The performance period for the 2017 
LTI grant is 1 January 2017 to 31 December 2019.

What was the value of the 2017  
grant for executive KMP?

table 4.3 – the LtI grant to executive KMP in 2017

Executive KMP

Andrew Cole

Luke Anderson(a)

Robert Fulker(b)

Mark Rankmore

Warrick Ranson(c)

2017 LTI grant  
as % of TFR

2017 LTI grant allocation  
$

150

90

90

70

–

1,125,000

472,500

450,000

280,000

–

(a) Resigned 29 September 2017, LTI was granted to Mr Anderson in 2017. All rights lapsed upon cessation of employment.
(b) Ceased to be KMP effective 23 November 2017 and resigned 10 February 2018, LTI granted to Mr Fulker in 2017 lapsed upon 

cessation of employment.

(c) Appointed 4 December 2017, ineligible for the 2017 LTI grant.

ANNUAL AND SUSTAINABILITY REPORT 2017ReM Un eR A tIo n  RePoR t

4 5

What are the performance conditions?

The two performance conditions, referred to as the vesting conditions are: (a) the executive KMP meeting the service 
condition; and (b) OZ Minerals meeting the LTI performance conditions. 

Service condition
The service condition is met if employment with OZ Minerals is continuous for three years commencing on or around  
the grant date (performance period). 

Performance conditions
The LTI plan performance conditions for 2017 were as follows:

1. Total shareholder return (TSR)
Relative TSR is the primary LTI performance hurdle measured against a comparator group. The Board considers TSR  
to be an appropriate performance hurdle because it ensures that a proportion of each participant’s remuneration is 
linked to shareholder value and that participants only receive a benefit where there is a corresponding direct benefit  
to shareholders. 
TSR reflects benefits received by shareholders through share price growth and dividend yield and it is the most widely 
used long term incentive hurdle in Australia. The Company employs an independent organisation to calculate the TSR 
ranking to ensure an objective assessment of the relative TSR comparison. Performance rights in respect to this hurdle 
will vest in accordance with the following table.

table 4.4 – Performance rights vested according to total shareholder return

TSR of OZ Minerals relative to TSRs  
of constituents of the nominated peer group 

Proportion of performance rights that vest

Below 50th percentile

50th percentile

0%

50%

Between 50th percentile and 75th percentile (not inclusive)

Straight line vesting between 50% and 100%

75th percentile or above

100%

The TSR performance hurdle accounts for 70% of the LTI award.

2. Absolute share price growth
Absolute share price growth is the second LTI performance hurdle. This hurdle will be satisfied if the OZ Minerals share 
price has increased by at least 20% over the performance period. Performance rights in respect to this hurdle will vest in 
accordance with the following table.

table 4.5 – Performance rights vested according to absolute share price growth

OZ Minerals share price growth  
over the performance period

Proportion of performance – related 
performance rights that vest

Less than 20%

20% or greater

0%

100%

The absolute share price growth hurdle accounts for 30% of the LTI award.

Why were the performance conditions chosen?

It is standard market practice to link individual executive performance (including mandatory service periods) and 
Company performance to the vesting of performance rights. The conditions link executives’ retention and performance 
directly to rewards, but only where shareholder returns are realised. The focus on employee-held equity is also part of a 
deliberate policy to strengthen engagement and direct personal interest to achieve shareholders returns.

4 6

What is the comparator group?

The comparator companies selected for 2017 are considered to be alternative investment vehicles for local and global 
investors. They are impacted by commodity prices and cyclical factors in a similar way to OZ Minerals. 

table 4.6 – 2017 comparator companies

Comparator company 

Capstone Mining Corp.

HudBay Minerals Inc.

Ivanhoe Mines Ltd

Katanga Mining Limited

KAZ Minerals Plc

Lundin Mining Corporation

Sandfire Resources NL

Taseko Mines Limited

Nevsun Resources Ltd 

MMG Limited 

Exchange

ASX/ticker code

TSX

TSX

TSX

TSX

LSE

TSX

ASX

TSX

TSX

HKEX

CS

HBM

IVN

KAT

KAZ

LUN

SFR

TKO

NSU

1208

What happens to performance rights granted under 
the LTI plan when an executive ceases employment?

What happens in the event of a change of control?

Is there any ability for the Company to ‘clawback’  
LTI awards? 

Do shares granted upon vesting of performance 
rights granted under the LTI plan dilute existing 
shareholders’ equity?

Does the Company have a policy in relation to  
margin loans and hedging at risk remuneration? 

If the executive’s employment is terminated for cause, or if they resign, all unvested performance rights will lapse 
unless the Board determines otherwise. In all other circumstances, unless the Board determines otherwise, a pro rata 
portion of the executive’s performance rights, calculated by reference to the portion of the performance period that has 
elapsed, will remain on foot, subject to the performance condition as set by the Board. If and when these performance 
rights vest, shares will be allocated (or a cash equivalent amount will be paid) in accordance with the OZ Minerals’ 
Equity Incentive Plan Rules and any other conditions of grant.

In the event of a takeover or change of control at OZ Minerals, the Board has the discretion to determine that vesting 
of all or some of the performance rights should be accelerated. If a change of control occurs before the Board has 
exercised its discretion, a pro rata portion of the performance rights will vest, calculated on the portion of the relevant 
performance period that has elapsed up to the change of control. The Board retains discretion to determine if the 
remaining performance rights will vest or lapse. 

In the event of fraud, dishonesty, gross misconduct or material misstatement of the financial statements, the Board may 
make a determination that could include the lapsing of unvested performance rights the forfeiture of shares allocated 
on vesting of performance rights and/or repayment of any cash payment or dividends to ensure that no unfair benefit 
was obtained.

Generally, there is no dilution of shareholders’ pre-existing equity as shares allocated to LTI plan participants upon 
vesting of performance rights are usually satisfied by purchases by the plan trustee on market.

Under the Company’s Securities Trading Policy, all executives, directors and officers are prohibited from entering into 
financing arrangements where the monies owed to the lender are secured against a mortgage over OZ Minerals’ 
shares. The Company’s Securities Trading Policy also prohibits executives and employees from entering into any hedging 
arrangement over unvested securities issued pursuant to any share scheme, performance rights plan or option plan.

ANNUAL AND SUSTAINABILITY REPORT 20173.0 Company performance  
and remuneration outcomes 

3.1 Company performance
We present a summary of OZ Minerals’ 
business performance as measured by a 
range of financial and other indicators.

3.2 STI performance  
and outcomes for 2017 
The Chairman and the Board, with the 
assistance of the Chair of the Human 
Resources and Remuneration Committee, 
reviewed the Managing Director and 
CEO’s performance against 2017 KPIs. The 
Managing Director and CEO reviews the 
performance of each of the other executive 
KMP against their 2017 individual KPIs, and 
seeks the approval of the Board and Human 
Resources and Remuneration Committee to 
determine award outcomes. 

ReM Un eR A tIo n  RePoR t

4 7

table 5 – Company performance(a) 

Measure 

Underlying EBITDA – $ million

Net profit/(loss) after income tax – $ million

Net cash inflow from operating activities  
– $ million

Basic earnings/(loss) per share – cents

Share price at end of year – $

Dividends paid per share – cents

2017

539.4

231.1

342.9

77.4

9.16

20

2016

373.8

107.8

324.1

35.7

7.89

20

2015

434.9

130.2

429.8

42.9

4.05

6

2014

352.4

2013

(215.5)

48.5

(294.4)

221.5

179.1

16.0

3.48

20

(97.1)

3.15

30

(a) Refer to the Financial Review section (p. 29) in the Directors Report for a commentary on the consolidated results, including 

underlying performance of the Consolidated Entity.

The Company scorecard contains enterprise level KPIs. The scorecard was assessed against the 
KPI’s in 2017, which resulted in a Board-approved score of 3.9.

table 6 – 2017 summary company KPI performance

Measure

KPI

Link to 
strategy

2017 performance summary

Financial 
delivery (30%)

Lean 
business

Financial and 
operations
(40% total)

Governance 
and 
organisation 
efficiency 
(10%)

Lean 
business

Safe

Safety 
performance 
(10%)

Sustainability
(20% total)

Leadership 
effectiveness 
(10%)

Strong 
values

Outcome

Exceeded

Achieved

Target EBITDA of $406 million was exceeded. 
The outcome reflected consistent performance 
from Prominent Hill operations and improved cost 
performance. Net operating cash flow target of  
$162 million was also exceeded.

Ongoing progress was made in continuing to 
simplify internal governance and systems based  
on the Company's operating model and lean 
operating culture. Performance Standards were 
finalised and rollout of Company Process Standards 
commenced. Consistent financial and operating 
performance has also demonstrated increasing 
commitment to innovation and exploring new  
ways of generating value.

TRIFR of 6.39 reflected ramp-up of activity at 
Carrapateena and improvements made at Prominent 
Hill. Severity of injury has reduced from 2016 
levels and all significant incidents were reported, 
investigated and subsequently reviewed by the 
Executive Committee for corrective action.

Partly 
achieved

Exceeded

Leadership effectiveness improved throughout the 
year through a targeted change programme to 
align senior leaders to company strategy and How 
We Work Together principles, setting the long term 
leadership culture for the Company. Leadership 
effectiveness was also demonstrated by continued 
improvements in developing innovation across the 
Company and ongoing improvements in cost control, 
operational performance and progressing growth 
opportunities consistent with the Company strategy.

4 8

table 6 cont.

Measure

KPI

Organic 
growth (20%)

Link to 
strategy

Copper core

Strategy and 
growth
(40% total)

Pipeline 
growth (10%)

Multiple 
assets

Concentrate 
quantity and 
quality (10%)

Customer 
focus

2017 performance summary

Outcome

The Carrapateena project was approved by the 
Board of Directors for full construction at a budgeted 
cost of $916 million. Work was completed to 
confirm an extended mining life at Prominent Hill 
until 2029. The West Musgrave project (an earn-in 
agreement with Cassini Resources) Scoping Study 
was completed and the project has proceeded to 
Pre-Feasibility Stage.

The exploration pipeline grew during the year, 
resulting in nine active drilling projects being 
maintained with various joint venture partners 
within Australia, Portugal and Mexico.

All budgeted concentrate produced by the Prominent 
Hill operation was sold in line with customer 
contracts with no breach in contract specifications 
whilst maintaining sufficient budgeted inventory. 
Study programme for the Concentrate Treatment 
Plant also progressed.

Exceeded

Achieved

Exceeded

table 7 – StI award percentage for executive KMP 
In accordance with the procedure set out in Section 2.0, an assessment was undertaken of 
the performance of each of the eligible Executive KMP against their 2017 KPIs.

Executive KMP

Company KPI 
performance

Individual KPI 
performance

Overall performance 
outcome 

(as per cent of 
maximum performance)

(as per cent of 
maximum performance)

(as per cent of 
maximum performance)

Current

Andrew Cole

Mark Rankmore

Warrick Ranson(a)

Former

Luke Anderson(b)

Robert Fulker(c)

83.5

83.5

–

–

83.5

83.5

92.5

–

–

80.5

83.5

88

–

–

82

(a)  Appointed 4 December 2017, ineligible for STI payment.
(b) Resigned 29 September 2017, ineligible for STI payment.
(c) Ceased to be KMP on 23 November 2017 and resigned effective 10 February 2018, eligible for STI payment as completed  

full year service.

ANNUAL AND SUSTAINABILITY REPORT 2017ReM Un eR A tIo n  RePoR t

4 9

table 8 – StI payments to executive KMP in 2017

Name

Andrew Cole

Mark Rankmore

Warrick Ranson(c)

Former

Luke Anderson(d)

Robert Fulker(e)

Payment

$

626,250

211,200

–

–

328,000

Maximum potential  
value of payment(a)

Per cent of maximum  
grant awarded(b)

Per cent of maximum  
grant forfeited

$

750,000

240,000

–

420,000

400,000

%

83.5

88

–

–

82

%

16.5

12

–

100

18

(a) The minimum potential value of the payments was nil. The maximum potential value of payment represents the achievement of stretch performance. 
(b) Rounded to the nearest whole decimal place.
(c) Appointed 4 December 2017, ineligible for STI payment.
(d) Resigned effective 29 September 2017, ineligible for STI payment.
(e) Ceased to be KMP on 23 November 2017 and resigned effective 10 February 2018 eligible for STI payment as completed full year service.

3.3 LTI performance and outcomes 
Performance rights granted under the OZ Minerals LTI Plan are granted for no consideration. Performance rights carry no dividend or voting 
rights. One ordinary share in the Company will be allocated on vesting of a performance right. The vesting condition for each grant is the 
relative TSR performance and absolute share price growth of the Company over the relevant performance period. In general, the executive 
must also remain employed with OZ Minerals for a continuous period of three years from the grant date. Details of the prior awards for 
relevant executive KMP are set out in the Remuneration Report for the year in which they were granted. 

Details of the performance rights held by executive KMP that lapsed during the year are set out in Table 15. Additional details are set out in 
Note 12 to the Financial Statements

The LTI awards on foot during the year (including those granted as part of the 2017 LTI awards) are detailed below.

table 9 – LtI awards on foot

Grant 
date

Rights

Maximum 
value of 
grant(a)

$

Fair value per 
performance 
right(b)

Performance period

Expiry date

Vesting outcome

Current

Andrew Cole

24/7/2017

135,446

1,353,106

5/7/2016

201,223

1,722,469

21/7/2015

154,344

27/1/2017

16/3/2016

21/7/2015

33,711

74,184

35,577

754,742

336,773

635,015

173,972

Mark Rankmore

Former

Luke Anderson(c)

27/1/2017

56,887

568,301

Robert Fulker(d)

16/3/2016

126,771

1,084,646

4/12/2015

27/1/2017

23,680

54,179

115,795

541,248

16/3/2016

120,734

1,033,483

4.29

3.88

3.47

6.20

3.56

2.82

6.20

3.56

2.82

6.20

3.56

1/1/2017 – 31/12/2019

15/2/2020

To be determined

1/1/2016 – 31/12/2018

15/2/2019

To be determined

1/7/2015 – 30/6/2018

15/8/2018

To be determined

1/1/2017 – 31/12/2019

15/2/2020

To be determined

1/1/2016 – 31/12/2018

15/2/2019

To be determined

1/7/2015 – 30/6/2018

15/8/2018

To be determined

1/1/2017 – 31/12/2019

15/2/2020

1/1/2016 – 31/12/2018

15/2/2019

1/7/2015 – 30/6/2018

15/8/2018

1/1/2017 – 31/12/2019

15/2/2020

1/1/2016 – 31/12/2018

15/2/2019

Lapsed

Lapsed

Lapsed

Lapsed

Lapsed

(a) The maximum value of the grants has been estimated based on a 52-week high closing share price in the calendar year of the grant. For the 2017 grant, this was $9.99 per instrument. The minimum 

total value of each grant, if the applicable performance conditions are not met, is nil.

(b) The fair values were calculated as at the grant dates. In accordance with the requirements of applicable accounting standards, remuneration includes a proportion of the notional value of performance 
rights as compensation granted or outstanding during the year. The notional value of performance rights granted as compensation is determined as at the grant date and progressively allocated over 
the vesting period. The amount included as remuneration is not related to or indicative of the benefit (if any) that individual executives may in fact receive. The values were calculated by an external 
third party based on a Monte-Carlo simulation model.

(c)  Resigned effective 29 September 2017. 
(d) Ceased to be KMP on 23 November 2017 and resigned effective 10 February 2018.

5 0

4.0 Executive KMP employment 
arrangements
Remuneration arrangements for executive 
KMP are formalised in executive service 
agreements. Each agreement provides 
for the payment of fixed remuneration, 
performance-related cash bonuses 
under the STI plan, other benefits, and 
participation in the Company’s LTI plan.

table 10 – executive KMP key provisions

Name

Term of contract

2017 TFR Notice period

Termination benefit

$

750,000

Current

Andrew Cole

Permanent – 
ongoing until notice 
has been given by 
either party.

Mark Rankmore

400,000

Permanent – 
ongoing until notice 
has been given by 
either party.

Warrick Ranson

525,000

Permanent – 
ongoing until notice 
has been given by 
either party.

Former

Luke Anderson

525,000

Permanent – 
ongoing until notice 
has been given by 
either party.

Robert Fulker

500,000

Permanent – 
ongoing until notice 
has been given by 
either party.

Twelve months fixed 
remuneration in the 
case of termination  
by the Company.

Twelve months’ notice by the 
Company. Six months’ notice by 
Andrew Cole.
Company may elect to make 
payment in lieu of notice.
No notice period required  
for termination by Company 
for cause.

Three months’ notice  
by either party. 
Company may elect to make 
payment in lieu of notice.
No notice required for 
termination by Company  
for cause.

Three months’ notice  
by either party. 
Company may elect to make 
payment in lieu of notice.
No notice required for 
termination by Company  
for cause.

Three months’ notice  
by either party. 
Company may elect to make 
payment in lieu of notice.
No notice required for 
termination by Company  
for cause.

Three months’ notice  
by either party. 
Company may elect to make 
payment in lieu of notice.
No notice required for 
termination by Company  
for cause.

Six months fixed 
remuneration in the 
case of termination  
by the Company.

Nine months fixed 
remuneration in the 
case of termination  
by the Company.

Nine months fixed 
remuneration in the 
case of termination  
by the Company.

Nine months fixed 
remuneration in the 
case of termination  
by the Company.

ANNUAL AND SUSTAINABILITY REPORT 2017ReM Un eR A tIo n  RePoR t

5 1

5.0 Executive KMP remuneration

table 11 – total rewards to executive KMP

Salary, 
fees and 
allowances

$

Accrued 
annual 
leave(a)

$

Current

Andrew Cole
Managing Director 
& CEO

Mark Rankmore
Head of People  
& Performance

Warrick Ranson
Chief Financial Officer(f)

Former

Luke Anderson
Chief Financial Officer(g)

Robert Fulker
Chief Operating 
Officer(h)

2017

2016

2017

2016

2017

2016

2017

2016

2017

2016

739,976

(15,379)

730,384

36,503

386,832

(12,923)

380,542

21,299

10,024

19,616

13,168

18,645

626,250

671,250

211,200

211,200

38,052

1,141

3,615

–

–

–

388,738

(26,547)

495,785

17,070

436,694

(22,131)

470,874

2,747

5,012

29,215

10,276

19,364

–

–

–

375,900

328,000

346,000

Super-
annuation(b)

Short term 
incentive

Other 
long term 
benefits(c)

Termination 
benefits(d)

Value of 
performance 
rights(e)

Total 
remuneration

Per cent of 
remuneration 
‘at-risk’

$

$

$

$

–

–

–

–

–

–

$

$

135,731

1,513,346

154,440

1,622,010

66,357

75,202

–

–

671,777

710,634

42,864

–

7,157

(128,510)

240,988

–

128,510

1,050,786

16,744

9,817

7,143

3,746

56

–

(4,862)

4,306

(5,899)

142,486

(122,390)

767,036

4,671

–

122,390

966,046

%

50

51

41

40

0

–

(53)

48

27

48

(a) Annual leave has been separately categorised and is measured on an accrual basis and reflects the movement in the accrual over the twelve-month period. Any reduction in accrued annual leave 

reflects more leave taken/cashed out than that which accrued in the period.

(b) Represents direct contributions to superannuation funds based on quarterly contribution limits under Super Guarantee Charge regulations (in 2016 contributions were based on annual contribution 

limits). Amounts greater than the maximum superannuation level have been paid and included in cash salary.

(c) Represents the net accrual movement for long service leave (LSL) over the twelve-month period which will only be paid if executive KMP meets the required service conditions.
(d)  Termination benefits include the value of  benefits such as payment for notice period and leave balances paid upon termination.
(e) The fair values were calculated as at the grant dates. In accordance with the requirements of applicable accounting standards, remuneration includes a proportion of the notional value of equity rights 
compensation granted or outstanding during the year. The notional value of equity rights granted as compensation which do not vest during the reporting period is determined as at the grant date and 
progressively allocated over the vesting period. The amount included as remuneration is not related to or indicative of the benefit (if any) that individual executives may in fact receive. The values were 
calculated by an external third party based on a Monte Carlo simulation model.

(f)  Appointed 4 December 2017.
(g) Resigned 29 September 2017. Benefits include the termination benefits.
(h) Ceased to be KMP effective on 23 November 2017 and resigned 10 February 2018.

5 2

6.0 Non-executive director 
remuneration 
6.1 Non-executive director 
remuneration policy
Non-executive director (NED) remuneration  
is reviewed annually by the Board. NEDs 
receive a fixed fee remuneration consisting 
of a base fee rate and additional fees for 
committee roles. 

Consistent with best practice, NEDs do not receive any form of equity incentive entitlement, 
bonuses, options, other incentive payments or retirement benefits. As approved at the 
OZ Minerals General Meeting on 18 July 2008, the maximum fees payable per annum 
is $2,700,000 in total. The Board decided not to increase the fees paid to non-executive 
directors in 2017 based on the Human Resources and Remuneration Committee’s 
recommendation. 

The Board intends to review the Board and Committee fees as part of its review of the Board 
and committee structure during 2018.

table 12 – Details of neD remuneration

Fees

Board 

Audit

Sustainability

Human Resources and Remuneration

Chairman 

Member 

$ per annum

$ per annum

313,285

43,056

21,528

21,528

120,314

21,528

10,764

10,764

All Directors (including the Chairman) are entitled to superannuation contributions (or 
cash in lieu thereof) equal to 9.5 per cent calculated on base Board and Committee fees, 
and are entitled to be reimbursed for travel and other expenses properly incurred by them 
in attending any meeting or otherwise in connection with the business or affairs of the 
Company, in accordance with the Company’s constitution. The Chairman of the Board does 
not receive additional fees for being a member of any Board committee. 

ANNUAL AND SUSTAINABILITY REPORT 2017ReM Un eR A tIo n  RePoR t

5 3

6.2 Total fees paid to NEDs 
In 2017, NEDs received $1,141,368 (2016: $1,059,764) in total fees, compared to the maximum approved fees payable of $2,700,000. 

table 13 – total remuneration paid to neDs

Current

Rebecca McGrath
Chairman

Julie Beeby
Non-executive Director

Tonianne Dwyer(b)
Non-executive Director

Charles Lenegan
Non-executive Director

Peter Tomsett(b)
Non-executive Director

Peter Wasow(c)
Non-executive Director

Former

Neil Hamilton(d)
Chairman

Paul Dowd(d)
Non-executive Director

Board fees and 
cash benefits

Committee fees

Non-monetary 
benefits

Superannuation(a)

Total 
remuneration

$

$

241,654

120,314

120,314

80,209

93,723

120,314

120,314

17,160(e)

43,056

28,002

14,352

31,629

53,820

53,820

$

–

–

–

–

–

–

–

 93,723 

    23,244 

          –

$

$

18,808

15,520

14,090

8,983

11,908

16,543

16,543

11,112              

277,622

178,890

162,406

103,544

137,260

190,677

190,677

128,079              

20,052

5,382

138,145

323,796

50,131

120,314

–

–

17,940

43,056

–

–

–

–

–

2,416

27,850

4,791

19,251

6,467

15,520

142,936

343,047

74,538

178,890

2017

2016

2017

2016

2017

2017

2016

2017

2017

2017

2016

2017

2016

(a) Represents direct contributions to superannuation funds based on quarterly contribution limits under Super Guarantee Charge regulations (in 2016 contributions were based on annual contribution 

limits). Amounts greater than the maximum superannuation level have been paid and included in cash salary.

(b) Appointed a Non-executive Director on 22 March 2017.
(c)  Appointed a Non-executive Director on 1 November 2017.
(d) Ceased to be a Non-executive Director on 24 May 2017.
(e)  Committee fee were paid during the period not as Chairman.

5 4

7.0 Equity instrument disclosure relating to KMP
The movement in the number of shares held by each KMP during the year is set out below. 

table 14 – KMP shareholdings

Balance at  
1 January 2017  
(or date commenced 
as KMP)

$

Non-executive directors

Current

Rebecca McGrath

Julie Beeby

Tonianne Dwyer(b)

Charles Lenegan

Peter Tomsett(b)

Peter Wasow(c)

Former

Neil Hamilton(d)

Paul Dowd(d)

Executive KMP

Current

Andrew Cole

Mark Rankmore

Warrick Ranson(e)

Former

Luke Anderson(f)

Robert Fulker(g) 

Total

20,645

8,000

–

20,750

–

–

39,500

10,800

10,000

–

–

–

–

109,695

Shares granted as 
remuneration

Shares acquired on 
exercise of rights

Net other  
movements

Balance at  
31 December 2017 
(or date ceased  
to be KMP)(a)

$

_

–

–

–

–

–

–

–

–

–

–

–

–

–

$

–

–

–

–

–

–

–

–

–

–

–

–

–

–

$

$

12,390

6,000

10,000

–

–

–

–

–

–

–

–

–

–

33,035

14,000

10,000

20,750

–

–

39,500

10,800

10,000

–

–

–

–

28,390

138,085

(a) The following number of shares (included in the holdings above) were held on behalf of KMP (i.e. indirectly beneficially held shares) as at 31 December 2017.
(b) Appointed Non-executive Director 22 March 2017.
(c) Appointed Non-executive Director 1 November 2017.
(d) Ceased to be a Non-executive Director 24 May 2017.
(e) Appointed 4 December 2017.
(f)  Resigned 29 September 2017.
(g) Ceased to be KMP on 23 November 2017 and Resigned 10 February 2018.

ANNUAL AND SUSTAINABILITY REPORT 2017ReM Un eR A tIo n  RePoR t

5 5

table 15 – KMP performance rights holdings 

Balance at  
1 January 2017

Granted as 
remuneration

Value of rights 
granted(a)

Vested(b) Exercised

Value of 
rights vested/
exercised 

Lapsed

Net other 
movements

Balance at 
31 December 
2017

Current

Andrew Cole

Mark Rankmore

Warrick Ranson(c)

Former

Luke Anderson(d)

Robert Fulker(e) 

Total

$

581,444

209,053

–

352,775

335,982

135,446

33,711

–

56,887

54,179

280,223

1,479,254

355,567

109,761

–

150,451

120,734

736,513

–

–

–

–

–

–

–

–

–

–

–

–

$

–

–

–

–

–

–

–

–

–

207,338

174,913

382,251

–

–

–

–

–

–

491,013

143,472

–

–

–

634,485

(a) The fair value of the performance rights granted to Mr Cole on 24 May 2017 was calculated on the grant date as $4.29 (the fair value has been calculated by an independent advisor based on a 

Monte Carlo simulation model). The fair value of the performance rights granted to other KMP on 27 January 2017 was calculated on the grant date as $6.20 (the fair value has been calculated by an 
independent advisor based on a Monte Carlo simulation model). No price is payable on acquisition of these rights, and there is no exercise price. Subject to the achievement of relevant performance 
conditions, these rights would be expected to vest on 31 December 2019.

(b) The number of vested performance rights at 31 December 2017 that were not exercisable was nil (2016: nil).
(c)  Appointed 4 December 2017.
(d) Resigned 29 September 2017.
(e)  Ceased to be KMP on 23 November 2017 and Resigned 10 February 2018.

8.0 Other transactions with executive KMP or NEDs
There were no loans made to executive KMP, NEDs or their related parties during the year. There were no other transactions between  
the Company and any executive KMP, NED or their related parties other than those within the normal employee, customer or supplier 
relationship on terms no more favourable than arm’s length.

5 6

ANNUAL AND SUSTAINABILITY REPORT 2017S U St A InA B I L It y  RePoR

t

5 7

Sustainability 
Report

5 8

Format and scope

This is our second year of publishing a 
combined annual and sustainability report  
to support our approach to creating  
value in a financially, environmentally 
and socially responsible manner for our 
shareholders and other stakeholders.  
You’ll find examples of sustainability in 
practice embedded throughout the report  
to reflect how sustainability is integrated  
into our operations. 

We disclose sustainability data in accordance 
with selected Global Reporting Initiative (GRI) 
Standards (version G4), a comprehensive set 
of guidelines that cover all dimensions of 
sustainability. We also reference supporting 
documents which form part of our 
sustainability disclosure. These documents 
are publicly available on our website to  
make specific information more accessible.

We use a materiality assessment to 
determine key topics that matter most to 
our stakeholders and us. The sustainability 
section of this report focuses on these  
topics. The material topics have not  
changed substantially from last year. 

We prioritise sustainability topics based on 
the significance of economic and social 
impact and the relevance to our stakeholders 
and the decisions they make. Material topics 
identified as having a high priority for both 
the business and stakeholders are discussed 
in this report. Other topics are mentioned in 
the report and on the Company website.

We identified material topics in compliance 
with the GRI guidance on materiality and 
completeness, and with reference to a range 
of internal and external considerations and 
priorities. The process included extensive 
document review, surveys, and dialogue  
with internal and external stakeholders. 

We report on all aspects of OZ Minerals’ 
operations and our operating subsidiaries, 
including joint ventures where we have 
operational control, for the 2017 calendar 
year (unless otherwise stated).

OZ Minerals’ sustainability  
performance is recognised

OZ Minerals was selected as member of the 
Dow Jones Sustainability Indices (DJSI) in 2017. 
This recognises our corporate sustainability 
leadership within our industry. Since 
RobecoSAM launched the globally renowned 
DJSI series in 1999, it has driven innovation 
in environmental, social and corporate 
governance (ESG) investment. 

FTSE Russell confirms that OZ Minerals Ltd 
has been independently assessed according 
to the FTSE4Good criteria, and has satisfied 
the requirements to become a constituent 
of the FTSE4Good Index. The FTSE4Good 
Index Series is designed to measure the 
performance of companies demonstrating 
strong environmental, social and governance 
practices. The FTSE4Good indices are used by 
a wide variety of market participants to create 
and assess responsible investment funds and 
other products.

Materiality Matrix

l

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e
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o
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e
k
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e
u
fl
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s
i
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a

s
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s
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s
a

energy and 
emissions 

Local 
Communities 

Business 
ethics

economic 
Performance 

Water 

occupational 
Heath and Safety

Indigenous 
People

Significance of economic, enviromental and social impacts

LOWHIGHHIGHANNUAL AND SUSTAINABILITY REPORT 2017 
 
 
 
 
SU St A InA B I L It y   R ePoR t

5 9
5 9

Environment

SUPPORTING DOCUMENTS

Sustainability governance: 
Sustainability Committee charter,  
Community and environment Policy  
ozminerals.com/about/corporate-governance

Management approach:
Governance framework, p. 17

environmental Performance Standards 
ozminerals.com/sustainability/environment

Sustainability framework:
GRI content index 
ozminerals.com/media/reports/sustainability

Performance data:
environmental data tables, pp. 74–77

6 0

26% 
decrease

in Scope 1 
emissions

15% 
reduction

in carbon dioxide 
emissions

Energy use and greenhouse gas emissions

The majority of OZ Minerals’ energy use 
occurs at the Prominent Hill mine. The  
two main areas of energy consumption  
are the processing plant (electricity) and 
mining vehicles (diesel fuel). Prominent Hill’s 
mining activities are transitioning as the  
open pit approaches the end of its life. As 
mining transitions underground there will  
be less waste, fewer trucks operating and 
less diesel consumption. 

We have reported energy use and  
greenhouse gas emissions in line with 
National Greenhouse and Energy  
Reporting Scheme (NGERS): 

 / Overall Scope 1 emissions decreased  

by 26 per cent compared to the  
previous year

 / Diesel use is Prominent Hill’s primary source 

of Scope 1 greenhouse gas emissions

 / 300,000 tonnes of Scope 1 and  

Scope 2 carbon dioxide equivalent 
emissions were generated in total,  
a 15 per cent reduction compared  
to the previous year. 

OZ Minerals is committed to reducing 
the energy intensity of our operations; 
developing innovative practices in relation 
to chemical processing; and being more 
efficient in our transportation and processing 
activities. A statement on OZ Minerals’ 
climate change risks is provided on page 35.

Management approach:
oZ Minerals emissions and Resource  
efficiency Performance Standard  
ozminerals.com/sustainability/environment

Annual reporting obligation:
national Greenhouse and energy Reporting 
Scheme (nGeRS)

Performance data:
energy and greenhouse gas data table, p. 74

Air quality

Dust is the main air emission relevant to  
our assets. It is generated by stockpiling  
and moving materials with vehicles that  
are driven on unsealed surfaces. We use  
a range of control measures to reduce the 
amount of dust we generate, including 
regular road maintenance and speed 
restrictions. We have verified that air  
quality management has effectively 
prevented adverse impacts on workers,  
the community and the environment, 

through comprehensive sampling at 
Prominent Hill and Carrapateena. There 
are no ozone-depleting substances, 
persistent organic pollutants or stack 
emissions produced at Prominent Hill and 
Carrapateena. Air quality is also affected 
by sulphur and nitrogen oxides that are 
generated by burning fuels. During blasting, 
gases like carbon monoxide and oxides of 
nitrogen are generated. 

Management approach:
oZ Minerals Air emissions Performance Standard  
ozminerals.com/sustainability/environment

Annual reporting obligation:
national Pollutant Inventory (nPI)

Performance data:
Air quality data table, p. 74

ANNUAL AND SUSTAINABILITY REPORT 2017t
SU St A InA B I L It y   R ePoR t
S U St A InA B I L It y  RePoR

6 1

Water 

Prominent Hill and Carrapateena are situated 
in areas with an average annual rainfall 
of less than 200 millimetres per year and 
they depend on groundwater to sustain 
operations. Our wellfields are located on 
nearby pastoral stations and, in the majority 
of cases, the pastoralists draw water from 
a shallower or discrete aquifer. Our water 
monitoring program monitors water levels 
and quality in previously-agreed pastoral 

wells on neighbouring stations. We closely 
monitor the surrounding groundwater 
sources and report these results to the 
relevant stakeholders. To ensure our control 
measures are effective, we conduct ongoing 
surface water monitoring to detect any 
potential changes in downstream surface 
water quality from baseline values, including 
acidity, salinity and water level.

Waste

Waste is managed on site at the integrated 
waste rock and tailings storage facility at 
Prominent Hill. Over the reporting period, 
Prominent Hill produced six million tonnes 
of waste rock and eight million tonnes of 
tailings. No potential acid-forming (PAF) 
material was mined. Most of the waste rock 
generated is placed in the rock dumps, with 
a proportion of non-acid forming (NAF) rock 
used to construct mine infrastructure, such 
as the tailings storage facility and roads. 

When PAF rock is encountered, it is 
encapsulated in designated PAF cells  
within the waste landform. These PAF  
cells are then encapsulated within NAF  
rock to prevent surface water runoff  
using physical control measures to  
prevent impact to the environment.

Our tailings performance standard sets out 
our approach to manage waste within the 
Tailings Storage Facility (TSF). These standards 
are written to ensure the TSF is designed, 
constructed and managed to achieve the 
following outcomes: prevent seepage rates 
to groundwater, ensure that the tailings 
are both physically and chemically stable, 
be protective of terrestrial and avian life, 
and comply with regulatory and licence 
requirements. The facility is run under a 
TSF Operations Management Plan which 
has been developed to comply with these 
standards.

As part of our tailings management, 
we conduct water sampling to monitor 
parameters including depth to water, salinity, 
pH, and metals at and surrounding the 
tailings storage facility and open pit.

Management approach:
oZ Minerals Water Performance Standard,  
oZ Minerals tailings Performance Standard,  
oZ Minerals Waste and Waste Water  
Performance Standard  
ozminerals.com/sustainability/environment

Performance data:
Water data table, p. 74

Management approach:
Waste and Wastewater Performance Standard, 
Waste Rock and ore Performance Standard  
and tailings Performance Standard  
ozminerals.com/sustainability/environment

Performance data:
Waste data table, p. 74

Land and biodiversity

Prominent Hill has formal management and 
monitoring plans for two bird species, the 
chestnut-breasted whiteface and the thick-
billed grasswren (eastern subspecies). Both 
of these species are on the International 
Union for Conservation of Nature (IUCN) 
Red List of Threatened Species. OZ Minerals 
has established a Significant Environmental 
Benefit (SEB) offset area to protect and 
enhance the birds’ habitat. 

At Carrapateena, three IUCN species are 
listed within the area – two vulnerable 
species (the Malleefowl and plains rat) and 
one endangered species (Pernatty knob-
tailed gecko). The plains rat is the only 
species within the local area of proposed 
operations. Our monitoring continues to 
indicate that mining activities will have 
minimal impact on the surrounding natural 
environment.

Management approach:
Land and Biodiversity Performance Standard 
ozminerals.com/sustainability/environment

Performance data:
Land and Biodiversity table, p. 75

6 2

Rehabilitation and closure

OZ Minerals’ operations have conceptual 
mine closure plans and several documents 
and programs detailing closure, including the 
Supporting Works Plan and the Program for 
Environment Protection and Rehabilitation. 
The Supporting Works Plan is reviewed 
annually to ensure closure assumptions are 
in line with current operational activities. 
The documents include rehabilitation and 
closure completion criteria to achieve post-
mining designated land use and to minimise 
environmental liability. A mine’s closure 
plan is updated throughout its operational 
life so that the risks and unknowns are 
identified and reduced over time. We provide 
for the estimated costs of rehabilitating, 
decommissioning and restoring the areas 
disturbed during the mine’s operation. 

 SU STAINABILITY  IN PRACTICE

Progressive rehabilitation has been taking 
place at Prominent Hill. With the imminent 
closure of the open pit, rock armouring of 
the north dump was completed during the 
year and rock armouring of the south dump 
was 97 per cent complete at year’s end. 

Stakeholder engagement on mine  
closure occurs throughout a mine’s life.  
The potential social and environmental 
impacts of mine closure are considered in  
our conversations with governments and 
local communities. We keenly support 
community initiatives and sustainable local 
businesses as a part of our community 
engagement program.

Management approach:
Rehabilitation and Closure Performance Standard  
ozminerals.com/sustainability/environment

Energy efficiency program  
at Prominent Hill
OZ Minerals conducted an energy efficiency 
audit at Prominent Hill with support 
from the South Australian Government 
Energy Productivity Program. Two energy 
productivity opportunities were identified 
as immediate opportunities and will form 
part of our energy program in 2018. The 
initiatives will improve the energy efficiency 
of our mining operation and reduce 
greenhouse gas emissions. 

We are committed to developing and 
shaping a modern energy landscape for  
all our mining operations. A company-wide 
power strategy is being developed and will 
be released in Q1 2018. 

ANNUAL AND SUSTAINABILITY REPORT 2017t
SU St A InA B I L It y   R ePoR t
S U St A InA B I L It y  RePoR

6 3
6 3

Social

SUPPORTING DOCUMENTS

Sustainability governance: 
Sustainability Committee charter,  
Community and environment Policy, 
ethics and Human Rights Policy 
ozminerals.com/about/corporate-governance

Management approach:
Governance framework, p. 17 

Social Performance Standards  
ozminerals.com/sustainability/social

Sustainability framework:
GRI content index 
ozminerals.com/media/reports/sustainability

Performance data:
Social performance data tables, p. 75  
Stakeholder engagement table, p. 76 

6 4

Stakeholder engagement

We seek to build and maintain strong, 
supportive relationships with the local 
communities where we operate. Our assets 
have community engagement programs 
that include engagement with regulatory 
bodies, government agencies, communities, 
land owners, traditional owners and local 
pastoralists within the sphere of influence 
of the operational and project activities. 
These programs ensure input from the local 
community and government and provide 
the opportunity for us to understand 
the environmental, social and economic 
implications of our projects.

We also engage with key community groups 
and stakeholders who may potentially be 
affected by the asset’s activities to better 
understand the risks and social impacts.  
We provide accurate and relevant 
information in a timely manner, and 
anticipate and proactively address 
community and stakeholder issues and 
concerns when consulting with them.

Mechanisms are in place to capture 
complaints and grievances and ensure they 
are promptly addressed. Our assets also 
monitor and review major communications 
and consultation activities to assess their 
effectiveness and promote employee and 
external stakeholder feedback.

Management approach:
Stakeholder engagement Performance Standard  
ozminerals.com/sustainability/social

Performance data:
Stakeholder engagement table, p. 76

Socioeconomic contributions 

We make significant contributions to local, 
regional and national economies directly 
through the payment of taxes and royalties 
to governments, as well as payments to  
our workforce and suppliers. In 2017 we:

 / paid more than $56.0 million in  

wages and benefits 

 / spent $736 million on goods  

and services

 / contributed approximately $52.9 million  

in royalties. 

Activities at Prominent Hill and  
Carrapateena significantly contributed 
to local and regional economies in 
South Australia, by $161 million in total. 
Operationally, significant value is generated 
through employment with our contracting 
partners and ourselves, and investments 
in community development initiatives 
and programs. The direct benefits of our 
investments include improved infrastructure, 
health, safety awareness, education and 
training, and local business development.

Performance data:
Socioeconomic data table, p. 75

Community investment and sponsorship

We have contributed to a broad range of 
local and regional programs. In addition 
to funding, our employees and contract 
partners provided in-kind assistance through 
the donation of time, expertise and resources 
for community events and initiatives. 

We supported locally organised initiatives 
that provide long-term benefits to our 
host communities and are aligned with the 
community’s wishes. Our sponsorships and 
community investment initiatives strive to 
support organisations or projects to achieve 
sustainable outcomes.

Community investment

We contributed $0.27 million to sponsorship 
of local organisations and programs in 2017, 
including the Royal Flying Doctor Service  
(see also Sustainability in practice on page 
70), SA School of the Air, Coober Pedy Area 
School and the Umoona Tjutagku Health 
Service. We have assisted the sustainability of 
our smaller host communities by sponsoring 
key local events in communities including 
Coober Pedy, Carrieton, Glendambo, William 
Creek, Oodnadatta and Marree.

Sponsorship:
oZ Minerals sponsorship guidelines  
ozminerals.com/sustainability

Performance data:
Community investment data table, p. 75

Total spent  
on community  
investment
$272,776

Health 41%

education 7%

Industry 11%

Community Appeal 41%

ANNUAL AND SUSTAINABILITY REPORT 2017SU St A InA B I L It y   R ePoR t

6 5

In support of the TTC and ahead of formal 
registration in 2018, we have elected 
to adopt these quantitative information 
disclosures for the year ended 31 December 
2017, as summarised in the performance 
data tables.

External documents:
Board of taxation’s tax transparency Code (ttC) 
taxboard.gov.au

Performance data:
tax data table, p. 77

Management approach:
Local enterprise Performance Standard 
ozminerals.com/about/corporate-governance

Performance data:
Procurement data table, p. 75

Our greatest supply impact is through 
contracting mining and other services.  
The largest material inputs include diesel 
fuel, explosives, grinding media used in 
the processing plant, and cement used in 
the underground mine. These materials are 
sourced from large, reputable organisations 
with operations in Australia. 

At the Carrapateena project, where 
construction is currently ramping up, we 
have employed a community relations 
team to engage with local businesses 
and communities and encourage local 
participation. We are also collaborating with 
the local business organisation to drive local 
content activities and facilitate connecting 
local businesses to the Carrapateena project 
supply chain. 

Tax transparency 

The Board of Taxation’s voluntary Tax 
Transparency Code (TTC) was endorsed  
by the Australian Government in 2016  
and is designed to encourage greater 
transparency within the corporate sector  
of its compliance with Australian tax laws. 
We support the initiative to ensure Australian 
businesses and subsidiaries of multinational 
companies operating in Australia pay tax  
on their profits, as required under Australian 
tax legislation. 

Local procurement

We seek to create sustainable benefits for  
the regions around our assets and source 
local employees and suppliers where possible. 
We preferentially purchase goods and services 
locally, within the region or within the state. 
National or international procurement is 
only considered when local procurement is 
not available or not competitive. We also 
help local businesses to understand our 
pre-qualification processes and procurement 
standards. Local and Aboriginal and Torres 
Strait Islander peoples are encouraged to 
apply for positions and tender for business 
opportunities with our assets.

In 2017, OZ Minerals’ spent $161 million 
with South Australian regional and local 
suppliers and contractors. These figures do 
not include wages and salaries paid to major 
contractors or expenditure by contractors  
in the local region.

total spend on suppliers by region

Total
$735 million

Australia
$699 million

South 
Australia
$161 million

International 5%

Australia 95%

national 77%

South Australia 23%

Regional 20%

Local 80%

6 6

Indigenous peoples and cultural heritage

A genuine partnership with land-connected 
Aboriginal and Torres Strait Islander peoples 
is built on trust, respect and integrity. It 
allows us to build a common understanding 
and language, identify opportunities, learn 
from each other and work towards shared 
goals. A comprehensive understanding 
of the culture and social structure of host 
communities is required to ensure respectful, 
inclusive and effective engagement. Each 
asset has dedicated personnel to ensure 
regular liaison with Indigenous communities. 
The requirements regarding engagement 
with Indigenous communities are set out 
in the Land-Connected Indigenous Peoples 
Performance Standard. In line with the 
standard, each asset must operate in 
accordance with the principles of the UN 
Declaration of the Rights of Indigenous 
Peoples (UNDRIP). Our partnering approach 
with Indigenous peoples is based on 
principles of equality, transparency and 
mutual benefit. It respects and protects  
the rights of Indigenous peoples and is in  
line with the values of ‘Free prior and 
informed consent’. 

Ethics and human rights

Our internal governance is guided by 
international guidelines, such as the UN 
Guiding Principles on Business and Human 
Rights, United Nations Universal Declaration 
on Human Rights, Voluntary Principles on 
Security and Human Rights, International 
Labour Organisations Conventions and 
the International Council on Mining and 
Metals principles. We further reinforce our 
expectations of employees through our Code 
of Conduct. We have a variety of programs 
to promote a culture of compliance 
and ethical business. Asset induction 

 SU STAINABILITY IN  PRACTICE

Management approach:
the Land-connected Indigenous Peoples 
Performance Standard, and the Cultural  
Heritage Performance Standard 
ozminerals.com/about/corporate-governance

We provide cultural heritage and awareness 
training and information on how to avoid 
damage to cultural heritage, along with 
project obligations and requirements.  
Cross-cultural awareness training programs 
are offered to employees and  selected 
contractor representatives at Prominent 
Hill, with a new training program under 
development specifically for Carrapateena 
operations. The training includes raising 
awareness on heritage and artefact finds and 
working in areas of cultural significance.

Prominent Hill continues to actively engage 
with the Antakirinja Matu – Yankunytjatjara 
traditional owners to collaborate on matters 
of shared ownership and shared value,  
such as cultural heritage management  
and cultural awareness training for OZ 
Minerals employees and contractors. We 
also support training programs, identify 
employment opportunities and identify 
business development programs.

training raises awareness of human rights 
responsibilities with senior management, 
employees, contractors (particularly 
security forces and human resources), and 
other stakeholders in the asset’s sphere of 
influence. From time to time, we also provide 
our employees with training on topics 
covered within the human rights standards. 
Maintaining and improving our systems 
and processes helps to ensure there are no 
human rights violations in our operations or 
in our supply chain.

Management approach:
ethics and Human Rights Policy, the Human  
Rights Performance Standard, Code of Conduct 
ozminerals.com/about/corporate-governance

Keeping the future good for all of us
The relationship between OZ Minerals and the traditional owners of the  
land where we operate is critical to the long-term success of our operations. 
The Kokatha people are the traditional owners of a large section of the 
land in South Australia’s north, including land on which the Carrapateena 
project is located. OZ Minerals and the Kokatha Aboriginal Corporation 
developed a Partnering Agreement which provided the basis for a Native 
Title Mining Agreement for the Carrapateena project. This informs and 
underpins the relationship and determines the nature, parameters and values 
of the partnership over the mine’s life and beyond. The partnering approach 
adopted by OZ Minerals and the Kokatha Aboriginal Corporation is based  
on principles of equity, transparency and mutual benefit. 

“This approach makes us partners, working together to co-design solutions. 
While this process is more challenging to undertake than transactional 
partnering, it offers far greater strategic value. Our partnering agreement 
NGANAMPA PALYANKU KANYINTJAKU translated, means keeping the  
future good for all of us in Kokatha. This encapsulates the outcome of  
the process and the feelings of my community.” Chris Larkin, Chairman,  
Kokatha Aboriginal Corporation

ANNUAL AND SUSTAINABILITY REPORT 2017t
SU St A InA B I L It y   R ePoR t
S U St A InA B I L It y  RePoR

6 7
6 7

Safety
A strong safety culture  
and employing proactive 
initiatives remains  
our emphasis.

SUPPORTING DOCUMENTS

Management approach: 
Health and Safety Policy  
ozminerals.com/about/corporate-governance

Safety performance standards:
Isolation, fixed and mobile equipment,  
electrical safety, fall prevention,  
Confined spaces, Ground control, explosives,  
fire prevention, Aviation, Inundation 
ozminerals.com/sustainability/safety

Sustainability framework:
GRI content index 
ozminerals.com/media/reports/sustainability

Performance data:
Safety data table, p. 77

6 8

ANNUAL AND SUSTAINABILITY REPORT 2017SU St A InA B I L It y   R ePoR t

6 9

Safety culture and leadership

We understand that mining activities 
may involve additional hazards which can 
impact people’s safety. We’re committed 
to identifying, evaluating and managing all 
of the associated threats for the actual and 
potential adverse impacts of mining activities 
as far as reasonably practicable. 

Our target is to achieve an injury and 
occupational disease-free workplace, 
by ensuring hazards are identified and 
managed at the source. All safety incidents 
are thoroughly investigated, we share what 
we’ve learned and we implement corrective 
action. Safety data is collected for the entire 
workforce, including employees, contractors 
and visitors working on our sites, and it is 
reported to management, including to the 
Managing Director and Chief Executive 
Officer. We also conduct yearly internal 
audits against select company processes  
and standards.

Active engagement from our senior 
leadership, combined with activities 
focused on identifying and eliminating 
causes of incidents. However, Carrapateena 
experienced an increase in recordable 
injuries during ramp-up of work in 2017. 
Significant incidents and incident trends are 
comprehensively reviewed by the Board’s 
Sustainability Committee, to ensure we 
learn from incidents, we comply with our 
approved processes, and we implement 
additional controls where necessary.

Safety programs

Effective safety management means we:

 / provide a safe working environment  
with supportive processes and systems

 / empower our workforce to raise  

safety issues before there is potential  
for an incident

 / thoroughly investigate incidents when  

they occur

 / implement controls to prevent the 

likelihood of reoccurrence using sound  
risk management practices. 

Safety statistics are calculated per one  
million working hours. In 2017, the total 
recordable injury frequency rate (TRIFR) per 
million hours worked decreased from 6.80  
in 2016 to 6.39. 

Our lead indicators are monitored to reduce 
workplace hazards and injuries. Incidents 
with potential or actual consequences are 
internally rated and assessed for their  
impact on safety, health, environment, 
community and financial metrics. This 
classification helps us to identify significant 
incidents that warrant an in-depth review 
and analysis. Significant incidents are those 
deemed to have:

 / potential or actual consequences  

rated at level four or above 

 / actual consequences rated at level four  
or above for injury and illness incidents 
and at level three and above for all other 
incident types. 

Potential and actual significant safety 
incidents are thoroughly investigated 
using the incident–cause–analysis method. 
In 2018, we will continue our focus on 
health and safety communications, with 
visible leadership, accountability and 
continuous reinforcement from all levels of 
management. This will help to drive a strong 
safety culture.

We have a number of initiatives in place  
to mature our safety culture. Our focus is  
on developing strong leaders and promoting 
safety leadership across our business and 
with our contracting partners. All of our 
employees and the employees of our 
contract partners are empowered to cease 
operations if necessary to ensure the safety 
of the workforce. 

We are committed to preventing work-
related accidents, injuries and illnesses.  
Our key safety programs include a Critical 
Risk Program and Byrnecut’s Under Ground 
Safety Improvement Program. 

In 2018, we will  
continue our focus 
on health and safety 
communications,  
with visible leadership, 
accountability and 
continuous reinforcement 
from all levels of 
management. This  
will help to drive a  
strong safety culture.

Management approach:
fitness for Work Performance Standard,  
Medical Programs Performance Standard  
ozminerals.com/sustainability

7 0

Contractor management

Our projects are delivered in partnership 
with contractors and suppliers, and we 
rely in part on their capabilities to carry out 
our operations. Our management system 
defines the requirements and practices for 
working with contractors and suppliers. 
Major contractors sign agreements with 
requirements consistent with our Code of 
Conduct, policies and standards. They must 
share our values and exhibit behaviour that 
ensures the safety of the workforce. 

Contractors are subject to a pre-qualification 
process and are comprehensively evaluated 
against criteria including safety, health, 
environment and community aspects as 
well as risk management, internal auditing 
processes and employee management. 

Minimum performance criteria (safety  
and environment) and performance criteria 
(including operating performance and site 
management) are developed and applied  
to our contracts.

Major contractors  
must share our values  
and exhibit behaviour  
that ensures the safety  
of the workforce. 

Training and emergency preparedness

We offer a wide range of development 
opportunities including formal programs, 
technical and compliance training, online 
learning and mentoring. This year, our 
workforce undertook 11,363 hours of 
employee training, mostly at Prominent  
Hill where the greatest number of our 
employees are based. 

Our crisis management procedures detail 
the roles, responsibilities and processes our 
corporate crisis management team would 
follow in the event of a crisis. The team 

includes representatives from operations, 
legal, commercial, safety, environment, 
community, media and government relations. 
We define a crisis as an event that seriously 
threatens people, operations, assets, the 
environment or our long-term prospects and 
reputation. Our assets have specific crisis 
management plans that outline the response 
to be initiated in the event of a crisis. We 
hold regular crisis training events and 
simulation exercises involving both the mine 
and the corporate crisis management teams.

 SU STAINABILITY IN  PRACTICE

Royal Flying Doctor Service
OZ Minerals is proud to be an ongoing 
financial supporter of the Royal Flying 
Doctor Service (RFDS). The RFDS is an 
invaluable support in times of need as  
our assets and exploration projects are 
located in remote and regional locations 
with limited infrastructure and access.  
In 2016–17, the RFDS central operations 
conducted over 320 aeromedical retrievals 
for emergency evacuations and primary 
health care in the communities surrounding 
Prominent Hill. The RFDS has been saving 
lives in outback Australia for 90 years, 
retrieving the critically ill or injured and 
providing urgent transfers of patients 
between regional and metropolitan 
hospitals to higher levels of care. 

ANNUAL AND SUSTAINABILITY REPORT 2017t
SU St A InA B I L It y   R ePoR t
S U St A InA B I L It y  RePoR

7 1
7 1

Health and 
wellbeing
Strong workplace culture 
contributes to employee  
health and wellbeing. 

SUPPORTING DOCUMENTS

Management approach: 
Health and Safety Policy  
ozminerals.com/about/corporate-governance

Health and wellbeing standards:
Medical programs, occupational exposure 
control, fitness for work, Lone workers and 
remote travel, Hazardous materials  
ozminerals.com/sustainability

Sustainability framework:
GRI content index 
ozminerals.com/media/reports/sustainability

7 2

People and performance

In 2017, we changed the name of our 
human resources department to People 
and Performance. This better reflects our 
focus on innovation and recognises that our 
people drive performance, which is central 
to OZ Minerals’ success. 

“This is part of being a modern mining 
company. This change to People and 
Performance reinforces our strategy  
and How We Work Together principles. By 
demonstrating these principles, we enable 
growth, innovation and collaboration.”  
Mark Rankmore, OZ Minerals’  
Head of People and Performance.

Health and wellbeing programs

We have implemented a series of programs 
that promote, maintain and enhance a 
healthy lifestyle, in view of the impact of 
physical, mental, emotional and social 
health on overall employee wellbeing. 
Our fitness-for-work program includes a 
wide range of activities and education in 
fatigue management, employee assistance 
programs, role-based assessments, 
ergonomic assessments, fitness, and drug 
and alcohol programs. We intend to provide 
employees with the necessary education 
and information to self-manage their own 
fitness-for-work. All our workplaces have a 
zero alcohol and drug policy.

Mental health is an important health risk that 
continues to be a concern across the mining 
industry. We offer an employee assistance 
program (EAP) with free, professional and 
confidential counselling to all employees, 
contractors, and their immediate family 
members. The EAP is provided through a 
leading global health and wellness company 
and helps to address work or personal issues 
through a network of accredited counsellors.

We offer an array of benefits to our 
employees including performance-based 
incentive plans, career development 
opportunities, paid parental leave and 
health and wellbeing services, such as health 
insurance, medical check-ups and health 
education programs.

Management approach:
fitness for Work Performance Standard,  
Medical Programs Performance Standard 
ozminerals.com/sustainability/healthandwellbeing

Ethical conduct training 

Employment

Our mandatory online training courses 
reinforce our Code of Conduct and the 
information in our policies. We provide 
training and education on key legal and 
ethical risk areas. Our employees enrol in 
online learning courses that include our 
equal employment opportunity program and 
ethics and conduct program, as well as an 
anti-harassment and bullying program. Each 
program includes awareness training based 
on site-specific needs.

Our open pit mining contractor is gradually 
demobilising as Prominent Hill transitions 
to an underground-only operation in 
2018. This transition will have an impact 
on the number of people working at the 
mine and we are supporting the affected 
personnel with redeployment opportunities, 
redundancy packages and outplacement 
services. The greatest impact will be on the 
open pit mining contracting company and  
its employees.

Performance data:
employment data table, p. 77

ANNUAL AND SUSTAINABILITY REPORT 2017SU St A InA B I L It y   R ePoR t

7 3

Diversity and inclusion

Women comprise 20 per cent of the 
workforce directly employed by OZ Minerals. 
Some individual contributors and functional 
leadership areas have more than 23 per cent 
female representation. 

All employees are entitled to parental leave. 
In 2017, four women took parental leave 
and three returned to work after their 
parental leave had ended. A retention rate of 
85 per cent was maintained after 12 months.

We offer competitive remuneration for 
our employees that reflects the job type, 
years of experience, and the length of time 
employees have held their position. We 
review earnings annually by gender and 
job band level to make sure that employee 
remuneration remains equitable and in line 
with market trends. 

Twenty five per cent of our total workforce is 
covered by collective bargaining agreements. 

We value diversity in our workforce as it 
helps us innovate and do things differently. 
We believe diversity and inclusion provides  
us with a strategic advantage that stems 
from applying a variety of capabilities,  
ideas and insights into problem solving  
and decision making.

employee diversity at oZ Minerals

Management approach:
Diversity and Inclusion Policy 
ozminerals.com/about/corporate-governance

Performance data:
Diversity data table, p. 77

  Under 30 years old      

  30–50 years old      

  over 50 years old       

  female      

  Indigenous

80%

60%

40%

20%

0%

Business and 
functional leadership

Department managers

Superintendents/  
senior specialists

tertiary/supervisor

Individual contributors

SU STAINABILITY IN PRACTICE

The University of Adelaide  
Ingenuity 2017 expo
OZ Minerals seeks to think and do things differently. We take an 
approach that encourages innovation, embraces disruption and seeks 
to make innovation a habit that results in value-creating outcomes.  
We partnered with the University of Adelaide on the Ingenuity 
2017 Expo and were able to support the development of future 
STEM leaders and showcase upcoming technology and solutions 
within computer science, engineering and mathematics. The Mining 
Engineering Group Ingenuity Presentation Prize, which is supported  
by OZ Minerals, was awarded to the project: Modelling diffusion in  
a sub-level caving operation in Carrapateena Mine.

7 4

Sustainability 
performance data

Environment

energy 

Energy consumption (GJ)

Energy consumed

Energy produced

Energy consumed (net)

Prominent Hill

Carrapateena

Group office

total

Note: OZ Minerals did not sell energy in 2017.

emissions

2,680,535

62,820

1,013

2,744,368

1,865

8,302

0

10,167

2,678,670

54,518

1,013

2,734,201

Total direct and indirect emissions

2016–2017

2015–2016

2014–2015

Greenhouse gas emissions Scope 1 (t Co2-e)(a)

Greenhouse gas emissions Scope 2 (t Co2-e)(b)

total of Scope 1 and Scope 2 (t Co2-e)

Methane CH4 (t Co2-e) 

nitrous oxide n2o (t Co2-e)

Sulphur hexafluoride Sf6 (t Co2-e) 

oxides of nitrogen (t)

Sulphur dioxide (t)

total volatile organic compounds (VoC) (t)

Particulate matter <10 um (t)

105,648

177,306

282,954

146

342

11

342

1.30

108

3,310

142,669

190,825

333,494

198

446

11

994

0.85

52

4,488

180,290

199,209

379,499

267

567

11

1,242

1.11

86

5,899

Note: The reporting period is July 2016 to June 2017. The energy and emissions boundary is based on operational control as defined by the National Greenhouse and Energy Reporting (NGER) Act 2007.  
The applied global warming potential (GWP) rates and emission factors are based on the NGER Act (2007) and the National Pollutant Inventory. 
(a) Scope 1 refers to emissions produced directly by operations, primarily resulting from combustion of various fuels and includes CO2-equivalent values for greenhouse gases such as CH4, N20 and SF6. 
(b) Scope 2 refers to indirect emissions resulting from the import of electricity from external parties; commonly the electricity grid.

Water withdrawal

Water withdrawal 
Surface (ML) water

Surface  
water

Groundwater  
(mine dewatering)

Groundwater 
(wellfield)

Rainwater/ 
stormwater

Municipal  
water supply

Total  
recycled

% Total 
recycled

Prominent Hill 

Carrapateena 

total 

Water discharge

0

0

0

514

9

523.3

5,312

102

5,414

0

–

0

0

271

271

843

14

857

14%

12%

14%

Water discharge (ML)

Subsurface

Surface

Sewers

Land (dust suppression)

Land

Treatment facilities

Groundwater

Prominent Hill

Carrapateena

total

Waste

0

0

0

0

0

0

0

0

0

415

59

474

0

6

6

843

0

843

0

10

10

Mineral waste

Overburden (t)

Material moved (t)

Total ore mined (t)

Liquid fossil fuels (kL)

Lubricants (kL)

Explosives (t)

Prominent Hill

Carrapateena

total

0

355,500

355,500

25,272,373

355,500

25,627,873

16,963,931

0

16,963,931

37,210

426

37,636

686

0

686

3,407

44

3,451

ANNUAL AND SUSTAINABILITY REPORT 2017SU St A InA B I L It y   R ePoR t

7 5

non-mineral waste

Non-mineral waste 

Solid recycled (t)

Liquid recycled (l)

Landfill (t)

Incineration (t) On-site storage (t)

Hazardous transported (t)

Prominent Hill

Carrapateena

total

1,094

149

1,243

60,600

0

60,600

967

687

1,654

157

9

166

0

0

0

22

21

43

Rehabilitation and closure

Land management (ha)

Total landholding

Mine footprint

Land disturbed

Land rehabilitated

Prominent Hill 

Carrapateena 

environmental compliance

11,401

1,070

2,045

121

0

60

0

7

total volume of significant spills

300 kL of saline water 

Monetary value of significant fines ($A)

0

Social

Socioeconomic contribution

$millions

Revenues

Operations

Employees

Payments to  
providers of capital

Payments to  
government

Region(a)

Revenue, other 
income and 
financing income(b)

operating 
expenses(b)

employee 
benefit 
expenses(b)

Dividend 
payments to 
shareholders

Providers  
of funds(b)

Income  
taxes paid

Royalties(b)

Community  
investment

Community 
investments

Economic  
value  
retained(d)

South Australia 
(total oZ 
Minerals)

1,040.6

(274.8)

(56.2)

(59.7)

(3.8)

(98.3)

(52.9)

(0.3)

  494.6

overview revenues 

overview community investment

Categories

Revenue 

other income

financing income

total

$millions

Categories

$millions

1,023.1

Health

5.0

education

12.5

Industry (c)

1,040.6

Community appeal

total

(0.11)

(0.02)

(0.03)

(0.11)

(0.27)

overview operating expenses

Categories

$millions

Procurement

Changes in inventories

190.2

Region

$millions

Raw materials

(332.3)

South Australia - local 

exploration and evaluation

(21.1)

South Australia - regional

freight expenses

(63.6)

national

net foreign exchange losses

(6.3)

International

other expenses

total

(41.7)

total

(274.8)

129.8

32.1

538.1

35.7

735.7

(a)  Amounts are divided into the region identified below based 
on where the operation is located (e.g. Prominent hill is 
located in South Australia). The region include the following 
entities: South Australia: Corporate Office, Prominent Hill 
Mine, Carrapateena. The entities located outside Australia are 
not defined as operating segments of OZ Minerals.

(b)  As disclosed in the income statement of the OZ Minerals 

audited financial statements for the year ended  
31 December 2017.

(c)  The community investment category ‘Industry’ includes 

sponsorships, events and money paid to industry associations 
to support various events and activities related to the  
mining industry.

(d) Economic value retained is calculated as revenues less 

economic value distributed. 

7 6

Stakeholder engagement

Stakeholder group

About the stakeholder

Engagement

Customers

Employees

Smelters, refiners and downstream copper product 
fabricators around the globe. With a key interest in product 
quality and a greater awareness of global labour issues, 
human rights and downstream product safety due to the 
nature of their business.

employees are predominantly South Australian based, 
fly-in fly-out employees covered by collective bargaining 
agreements. Key topics for employees include: occupational 
health and safety, employment, diversity and equal 
opportunity, training and education, and personal 
wellbeing.

Regular formal and informal communication with marketing department staff. 
Personal visits by marketing department and process management staff. Site 
visits to customer plants and customer representatives encouraged to visit  
oZ Minerals’ operations. Production of parcels as per customer specifications.

Regular communication with staff through presentations and discussions, 
through the intranet, email alerts, hard copy newsletters, noticeboard items  
and a regular electronic letter from the Ceo.
Refer to the safety, and health and wellbeing section for information about our 
safety programs.

Governments

Local, state and national regulators and government 
agencies.

Regular formal and informal communications with operational senior 
management and staff through site visits, meetings, events and reporting, 
partnership in South Australian Government Copper Strategy.

Industry associations Mining and minerals industry.

Representatives on boards and committees, engagement on specific projects.

Investment 
community

Mainstream brokers, financial analysts and fund managers, 
sustainability and ethical investment analysts, retail 
investment advisers, existing and potential shareholders, 
both domestically and internationally.

Annual General Meeting, Annual Reports and Sustainability Reports, Quarterly 
Reports and webcasts, ASX releases, Company website, direct phone contact with 
investor relations, presentations at industry conferences, briefings and site visits, 
investor presentations.

Local communities

Individuals and groups local to our operations, including 
pastoralists, traditional owners, local Aboriginal groups, 
development groups, local businesses and councils.

Media

Print, radio, television and online platforms.

Location-specific community relations personnel, community meetings, formal 
and informal communications, as well as social media.

Dedicated media relations function. Regular engagement with business and 
regional media through teleconferences, regular one-on-one discussions, 
interviews, ASX releases, media releases and site visits.

Non-government 
organisations

Local, regional and international environmental, human 
rights, development, corporate social responsibility and 
sustainability organisations.

Liaise directly with operational management, environment and community 
relations departments on specific issues. Annual Reports and Sustainability 
Reports and media releases.

Shareholders

Retail and institutional shareholders.

Annual General Meeting, Annual Reports and Sustainability Reports, Quarterly 
Reports, and webcasts, website (where all releases and other information on  
oZ Minerals is maintained and regularly updated), and investor presentations.

Suppliers

from local businesses to large international organisations.

Regular meetings with commercial and operational staff.

Other mining 
companies and 
academia

other mining companies, mining regulators, industry 
associations and minerals industry academics, Industry 
Alliance with representatives of resource companies in the 
Coober Pedy region and Coober Pedy Council.

Papers and presentations given by executives at various industry-related 
conferences. Location-specific industry meetings, informal communication and 
working groups.

ANNUAL AND SUSTAINABILITY REPORT 2017SU St A InA B I L It y   R ePoR t

7 7

tax

Australian tax-related contribution summary

$millions

Reconciliation to income tax payable

$millions

Corporate income tax(a)

Government royalties

State payroll taxes and other

total

employee PAyG

79.2

52.9

Profit before income tax expense

Permanent differences

2.5

temporary differences

134.6

    – Difference in accounting and tax depreciation

18.4

    – Provisions and Accruals

(a)  Corporate Income Tax represents cash outflows in 2017 in relation to income tax payment for 
December 2016 totalling $65.5m and two monthly PAYG installments relating to 2017 income 
year totalling $13.7m. 

    – Derivatives

    – exploration deductions

    – Loss on disposal of asset

Reconciliation of accounting profit to income tax expense

$millions

    – other

Accounting profit before income tax expense

tax at Australian tax rate of 30%

Permanent differences

Use of R&D tax offsets

Prior period adjustments

Income tax expense

effective tax rate

329.4

(98.8)

(4.1)

4.2

0.3

(98.3)

29.8%

International related party dealings

for the year ended 31 December 2017, oZ Minerals did not have any dealings 
with international related parties for the purposes of the taxation’s voluntary  
tax transparency Code (ttC). 

taxable income before utilisation of carried forward  
restricted tax losses

Utilisation of carried forward restricted tax losses

taxable income after utilisation of carried forward losses

tax at Australian tax rate of 30%

Utilisation of R&D offsets

Income tax payable

PAyG installments for December 2017

net income tax payable post PAyG installments

329.4

13.6

155.8

(3.7)

5.6

(40.1)

(3.2)

(2.8)

454.6

(57.8)

396.8

(119.0)

4.2

(114.8)

13.7

(101.1)

Health and wellbeing

Diversity 

Company profile 2017

Full time

Part time

Fixed term

Casual

Employees

Contractors

Workforce

South Australia

M

241

F

54

M

0

F

3

M

16

F

6

M

7

F

2

Total

329

M

870

F

Total

131

1,001

New employees 2017

Age group <36

Age group 36–55

Age group >55

M

28

M

17

Age group <36

South Australia

Turnover 2017

South Australia

Safety

Safety performance

employee fatalities

Contractor fatalities

tRIfR (employees and contractors)

LtIfR (employees and contractors)

Significant safety incidents(a)

(a)  As defined by OZ Minerals internal classification.

F

8

F

12

2017

0

0

6.39

0.36

65

M

31

F

12

Age group 36–55

M

19

F

5

M

6

M

4

Age group >55

F

0

F

2

2016

0

0

6.80

1.07

71

2015

0

0

5.30

0.90

61

Total

1,330

Total

85

Total

59

 
 
7 8

Independent Limited Assurance  
Report to the Directors of OZ Minerals Ltd 

Conclusion
Based on the evidence 
we obtained from the 
procedures performed, 
we are not aware of any 
material misstatements in 
the information subject to 
assurance, which has been 
prepared by OZ Minerals 
Limited in accordance 
with GRI G4 Sustainability 
Reporting Guidelines for the 
year ended 31 December 
2017.

Information Subject to Assurance
The Selected Sustainability Information, as presented in the OZ Minerals Limited 
Sustainability Report 2017 and available on OZ Minerals Limited’s website, comprised  
the following:

Selected Sustainability Information

Value assured

Fatalities

Total Recordable Injury Frequency Rate (TRIFR)

Lost Time Injury Frequency Rate (LTIFR)

0

6.39

0.36

Greenhouse gas emissions Scope 1 (t C02-e) July 2016 – June 2017

105,648

Greenhouse gas emissions Scope 2 (t C02-e) July 2016 – June 2017

177,306

Energy consumed (GJ)

Energy produced (GJ)

Rehabilitation and closure

2,744,368

10,167

Management approach

Criteria Used as the Basis of Reporting 

The criteria used in relation to the Sustainability Report content are the GRI G4 
Sustainability Reporting Guidelines published by the Global Reporting Initiative (GRI) and 
Company-specific definitions. 

Basis for Conclusion
We conducted our work in accordance with Australian Standard on Assurance 
Engagements ASAE 3000 (Standard). In accordance with the Standard we have:

 / used our professional judgement to plan and perform the engagement to obtain 

limited assurance that we are not aware of any material misstatements in the Selected 
Sustainability Information, whether due to fraud or error;

 / considered relevant internal controls when designing our assurance procedures, however 

we do not express a conclusion on their effectiveness; and 

 / ensured that the engagement team possess the appropriate knowledge, skills and 

professional competencies. 

Summary of Procedures Performed
Our limited assurance conclusion is based on the evidence obtained from performing  
the following procedures:

 / enquiries with relevant OZ Minerals Limited personnel to understand the internal controls, 

governance structure and reporting process of the Selected Sustainability Information;

 / reviews of relevant documentation;

 / analytical procedures over the Selected Sustainability Information;

 / site visits to Corporate Head Office (Adelaide) and Prominent Hill mine site;

 / walkthroughs of the Selected Sustainability Information to source documentation;

 / agreeing the selected information included in the Sustainability Report 2017 to  

relevant underlying sources on a sample basis for mine closure; 

 / agreeing the selected claims included in disclosures to source documentation

 / an assessment that the indicators reported were in accordance with the GRI G4  

Core level of disclosures

 / reviewing the Sustainability Report in its entirety to ensure it is consistent with our  

overall knowledge of the assurance engagement.

© 2018 KPMG, an Australian partnership and a member firm of the KPMG network of independent member firms affiliated with 
KPMG International Cooperative (“KPMG International”), a Swiss entity. All rights reserved. The KPMG name and logo are registered 
trademarks or trademarks of KPMG International. Liability limited by a scheme approved under Professional Standards Legislation.

ANNUAL AND SUSTAINABILITY REPORT 2017I nDePe nDe n t   LI M It eD AS S U R AnCe   R ePoR

t

7 9

How the Standard Defines Limited Assurance and  
Material Misstatement
The procedures performed in a limited assurance engagement vary in nature and timing 
from, and are less in extent than for a reasonable assurance engagement. Consequently the 
level of assurance obtained in a limited assurance engagement is substantially lower than 
the assurance that would have been obtained had a reasonable assurance engagement been 
performed. 

Misstatements, including omissions, are considered material if, individually or in the 
aggregate, they could reasonably be expected to influence relevant decisions of the Directors 
of OZ Minerals Limited. 

Use of this Assurance Report
This report has been prepared for the Directors of OZ Minerals Limited for the purpose of 
providing an assurance conclusion on the Selected Sustainability Information and may not be 
suitable for another purpose. We disclaim any assumption of responsibility for any reliance on 
this report, to any person other than the Directors of OZ Minerals Limited, or for any other 
purpose than that for which it was prepared. 

Management’s responsibility
Management are responsible for:

 / Determine that the criteria is appropriate to meet the needs of intended users, being OZ 

Minerals Limited and their stakeholders.

 / Prepare and present the information subject to assurance in accordance with the criteria. 

This includes disclosing the criteria, including any significant inherent limitations.

 / Establish internal controls that enable the preparation and presentation of the information 
subject to assurance that is free from material misstatement, whether due to fraud or error.

 / Tell us of any known and/or contentious issues relating to the information subject to 

assurance.

 / Maintain integrity of the website.

Our Responsibility
Our responsibility is to perform a limited assurance engagement in relation to the Selected 
Sustainability Information for the year ended 31 December 2017, and to issue an assurance 
report that includes our conclusion.

Our Independence and Quality Control
We have complied with our independence and other relevant ethical requirements of the 
Code of Ethics for Professional Accountants issued by the Australian Professional and Ethical 
Standards Board, and complied with the applicable requirements of Australian Standard on 
Quality Control 1 to maintain a comprehensive system of quality control. 

KPMG

Melbourne

22 February 2018

© 2018 KPMG, an Australian partnership and a member firm of the KPMG network of independent member firms affiliated with 
KPMG International Cooperative (“KPMG International”), a Swiss entity. All rights reserved. The KPMG name and logo are registered 
trademarks or trademarks of KPMG International. Liability limited by a scheme approved under Professional Standards Legislation.

8 0

ANNUAL AND SUSTAINABILITY REPORT 2017MIn eR A L  R eSoU R CeS 

AnD o Re   R eSeR VeS

8 1

Mineral 
Resources and 
Ore Reserves

8 2

Mineral Resources  
and Ore Reserves 2017

OZ Minerals’ Mineral Resources and Ore Reserves
The 2017 Mineral Resources and Ore Reserves of OZ Minerals are summarised in the table below along with the 2016 Mineral Resources  
and Ore Reserves for comparison.

Tonnes

Mt

160

130

300

74

79

150

Cu

%

1.0

1.5

1.2

1.0

1.8

1.4

Resources

Prominent Hill

Carrapateena

Total

Reserves

Prominent Hill

Carrapateena

Total

Note: Table subject to rounding errors.

2017

2016

Au 

g/t

Ag 

g/t

Cu

kt

Au

Moz

Ag

Tonnes

Moz

Mt

0.7

0.6

0.6

0.6

0.7

0.7

3

7

4     

3

9

6      

1,600

2,000

3,600

730

1,400

2,100

3.5

2.6

6.1

1.5

1.8

3.3

14

28

42

   7

22

29

172

134

307

75

  70

145

Cu

%

1.0

1.5

1.2

1.0

1.8

1.4

Au 

g/t

Ag 

g/t

Cu

kt

Au

Moz

Ag

Moz

0.7

0.6

0.6

0.6

0.7

0.7

3

7

4

3

8

6

1,770

1,970

3.7

2.6

 3,740

  6.3

740

 1,300

2,040

1.4

1.7

3.1

15

28

43

   7

19

26

Information in the table above was drawn from the following:

Deposit

Prominent Hill

Prominent Hill

Prominent Hill

Carrapateena

Carrapateena

Prominent Hill

Prominent Hill

Prominent Hill

Carrapateena

Carrapateena

Mineral Resources 2015

Mineral Resources 2016

Mineral Resources 2017

Mineral Resources 2016

Mineral Resources 2017

Ore Reserves 2015

Ore Reserves 2016

Ore Reserves 2017

Ore Reserves 2016

Ore Reserves 2017

Estimate date

30 June 2015

1 July 2016

30 June 2017

18 November 2016

18 November 2016

30 June 2015

1 July 2016

30 June 2017

20 October 2016

4 August 2017

Release date

4 November 2015

15 November 2016

21 November 2017

9 December 2016

24 August 2017

4 November 2015

15 November 2016

21 November 2017

7 November 2016

24 August 2017

Note: All Mineral Resources and Ore Reserves are estimates. The Mineral Resource and Ore Reserve statements and their accompanying explanatory notes can be viewed in full at:  
ozminerals.com/operations/resources-reserves.html

ANNUAL AND SUSTAINABILITY REPORT 2017The Prominent Hill 
Mineral Resources and 
Ore Reserves remain 
robust with the majority 
of changes due to 
mining depletion.

MIn eR A L  R eSoU R CeS 

AnD o Re   R eSeR VeS

8 3

Prominent Hill 2017 Mineral Resources and Ore Reserves
The Prominent Hill Mineral Resource as at 30 June 2017 has been estimated at 163 million 
tonnes of copper-gold mineralisation grading 1.0 percent copper, 0.7 grams per tonne gold 
and 2.7 grams per tonne silver. The Mineral Resource contains 7% fewer copper tonnes  
and 6% fewer gold ounces than the previous Mineral Resource estimate.

Open pit mineral resources
 / The Prominent Hill Open Pit Mineral Resource estimate decreased by 14 million tonnes  
(64 per cent), 140 thousand tonnes of copper metal (62 per cent) and 290 thousand  
ounces of gold metal (66 per cent) as a result of mining depletion.

Underground mineral resources
 / The Prominent Hill Underground Mineral Resource estimate decreased by 1.4 million tonnes 

(1 per cent), 30 thousand tonnes of copper metal (2 per cent) and 70 thousand ounces 
of gold metal (2 per cent). However relative to the 2016 estimate, the estimated Mineral 
Resource has now increased in confidence with increased Measured (+15%) and Indicated 
(+23%) classified material tonnages and decreased Inferred (-17%) classified material 
tonnage.

 / Diamond drilling activities, mostly in the southern Prominent Hill Shear Zone and Volcanics, 
resulted in the addition of approximately 3 million tonnes of new copper mineralisation at 
1.2 per cent copper and 0.7 grams per tonne gold to the Mineral Resource, predominantly 
into the Measured and Indicated estimation classifications. In addition, drilling also 
upgraded approximately 5 million tonnes of existing 2016 Inferred Mineral Resource 
estimation to the Measured and Indicated estimation classification in 2017.

 / Additional tonnage due to diamond drilling fully offset underground mining tonnage 
depletion for the twelve month period. Reductions in the estimated Inferred Mineral 
Resources were driven by re-evaluated geological and grade continuity interpretations, 
influenced by updated diamond drilling information, changes to the NSR calculation’s metal 
recoveries and updated estimation parameters.

Stockpiles
 / Surface ore stockpiles as of 30 June 2017 had increased by 6.8 million tonnes (30 per cent), 

45 thousand copper metal tonnes (68 per cent) and 140 thousand gold ounces (33 per 
cent). 6.7 million tonnes (98 per cent) of the stockpile growth was directly attributable to 
Open Pit ore mining.

8 4

Copper mineral resources at Prominent Hill – 30 June 2017

Category

Tonnes

Mt

Cu 

%

Au 

g/t

Ag 

g/t

Cu 

kt

Au 

Koz

Ag 

Moz

Open Pit(a) – 0.25% Cu cut-off

Measured

Indicated

Inferred

Total

Underground(b) – $57 NSR cut-off

Measured

Indicated

Inferred

Total

Surface Stocks

Measured

Total

Measured

Indicated

Inferred

Total

3

5

0

8

33

34

53

120

1.2

1.0

1.1

1.1

1.5

1.1

1.1

1.2

0.5

0.6

0.6

0.6

0.5

0.7

0.5

0.6

12

0.8

0.4

48

39

53

140

1.3

1.1

1.1

1.2

0.5

0.7

0.5

0.5

4

2

2

3

3

3

2

3

2

3

3

2

3

36

 47

0

83

490

380

570

50

84

0

130

500

760

910

0.4

0.3

0.0

0.7

4

3

4

1,400

2,200

11

93

170

620

430

570

720

840

910

1

5

4

4

1,600

2,500

13

Note: Table subject to rounding errors. 
(a) Within the final pit design.
(b) Net smelter return (NSR) details can be found in the 2017 explanatory notes: ozminerals.com/operations/resources-reserves.

Gold mineral resources at Prominent Hill – 30 June 2017

Category

Tonnes

Mt

Cu 

%

Au 

g/t

Ag 

g/t

Cu 

kt

Au 

Koz

Ag 

Moz

Open Pit(c) – 0.5 g/t Au cut-off Below 0.25% Cu

Indicated

Inferred

Total

Underground(d) – $57 NSR cut-off

Indicated

Inferred

Total

Surface Stocks

Measured

Total

Measured

Indicated

Inferred

Total

0

0

0

2

6

7

0.1

0.1

0.1

0.0

0.0

0.0

 0.8

1.3

0.9

2.6

2.4

2.4

15

0.1

0.8

15

2

6

23

0.1

0.0

0.0

0.1

0.8

2.3

2.4

1.3

1

1

1

1

1

1

2

2

1

1

2

0

0

0

0

3

3

12

0

12

150

440

580

0.0

0.0

0.0

0.1

0.1

0.2

17

380

1.1

17

0

3

20

380

160

440

970

1.1

0.1

0.1

1.3

Note: Table subject to rounding errors. 
(c) Within the final pit design.
(d) Net smelter return (NSR) details can be found in the 2017 explanatory notes: ozminerals.com/operations/resources-reserves.

ANNUAL AND SUSTAINABILITY REPORT 2017MIn eR A L  R eSoU R CeS 

AnD o Re   R eSeR VeS

8 5

Prominent Hill Ore Reserves
The Ore Reserves at 30 June 2017 were 
estimated to be 74 million tonnes at 1.0 
percent copper and 0.6 grams per tonne 
gold for 730 thousand tonnes of contained 
copper and 1.5 million ounces of contained 
gold. The 2017 Ore Reserve contains 1%  
less copper tonnes than the previous Ore 
Reserve estimate.

Open Pit Ore Reserves
 / The Ore Reserves decreased due to  
mining depletion almost exclusively.

Underground Ore Reserves
 / Underground Ore Reserve copper and  
gold metal has increased by ~13 and  
~27 per cent respectively, driven by 
increased confidence in the Mineral 
Resource estimate, improved design  
inputs and lateral (across and along  
strike) mining area expansions.

Summary of the ore reserves at Prominent Hill – 30 June 2017

Category

Open Pit

Proved

Probable

Total

Underground

Proved

Probable

Total

Surface Stocks

Proved

Prominent Hill all mining areas

Proved

Probable

Total

Note: Table subject to rounding errors.

Tonnes

Mt

Cu 

%

Au 

g/t

Ag 

g/t

Cu 

kt

Au 

Koz

Ag 

Moz

3

5

8

19

20

39

1.1

0.9

1.0

1.6

1.2

1.4

0.5

0.6

0.6

0.4

0.8

0.6

27

0.4

0.6

49

25

74

0.9

1.1

1.0

0.6

0.7

0.6

4

2

3

4

3

3

2

3

3

3

33

42

74

300

240

540

50

92

140

270

490

760

110

550

450

280

730

870

580

1,500

0.4

0.4

0.7

2

2

4

2

5

2

7

8 6

Material changes in the 
Prominent Hill Mineral Resources 
and Ore Reserves Statement.
OZ Minerals is not aware of anything that 
materially affects the information contained 
in the Prominent Hill Mineral Resources and 
Ore Reserves Statement, 30 June 2017 other 
than changes due to depletion since 1 July 
2017. Depletion for the six months to 31 
December 2017 amounts to approximately 
5.2 million tonnes at 1.3% Cu, 0.6 g/t Au 
and 3 g/t Ag.

Competent Persons’ Statements Prominent Hill Mineral Resources  
& Ore Reserves
The information set out in these tables is a summary of information relating to Prominent 
Hill Mineral Resources and Ore Reserves set out in the document, Prominent Hill Mineral 
Resources and Ore Reserves Statements and Explanatory Notes as at 30 June 2017, which 
was released to the market on 21 November 2017 and is available at  
ozminerals.com/operations/resources-reserves.html.

The information in this report that relates to mineral resources is based on and fairly 
represents information and supporting documentation compiled by Colin Lollo, a Competent 
Person who is a Member of the Australasian Institute of Mining and Metallurgy (AusIMM 
Membership No. 225331). Colin Lollo is a full time employee of OZ Minerals Limited. He 
is a shareholder in OZ Minerals Limited and is entitled to participate in the OZ Minerals 
Performance Rights Plan.

Colin Lollo BSc (Geology) has over 20 years of relevant experience as a geologist including ten 
years in iron-oxide–copper–Gold-style deposits.

Colin Lollo has sufficient experience that is 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’ (JORC 2012). Colin Lollo consents to the 
inclusion in the report of the matters based on his information in the form and context in 
which they appear.

The Mineral Resource estimate has been reported in accordance with the guidelines defined 
in the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore 
Reserves (The JORC Code, 2012 Edition).

The information in this report that relates to the open pit ore reserves is based on and fairly 
represents information and supporting documentation compiled by Michael Wood BEng 
(Min), a Competent Person who is a Member of the Australasian Institute of Mining and 
Metallurgy (AusIMM Membership No. 225408).

Michael Wood is a full time employee of OZ Minerals Limited. Michael Wood is a  
shareholder in OZ Minerals Limited and is entitled to participate in the OZ Minerals 
Performance Rights plan.

Michael Wood has over 11 years of experience as a mining engineer including six years 
in iron-oxide–copper–Gold-style deposits. He has sufficient experience that is relevant to 
the style of mineralisation and type of deposit under consideration and to the activities 
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’ 
(the JORC Code). Michael Wood consents to the inclusion in the report of the matters based 
on his information in the form and context in which they appear.

The information in this report that relates to the underground ore reserves is based on and 
fairly represents information and supporting documentation compiled by Luke Sandery BEng 
(Min), a Competent Person who is a Member of the Australasian Institute of Mining and 
Metallurgy (AusIMM Membership No. 212082).

Luke Sandery is a full time employee of OZ Minerals Limited. Luke Sandery is a shareholder in 
OZ Minerals Limited and is entitled to participate in the OZ Minerals Performance Rights plan.

Luke Sandery has over 11 years of experience as a mining engineer including six years in iron-
oxide–copper–Gold-style deposits. He has sufficient experience that is relevant to the style of 
mineralisation and type of deposit under consideration and to the activities being undertaken 
to qualify as a Competent Person as defined in the 2012 Edition of the JORC Code. Luke 
Sandery consents to the inclusion in the report of the matters based on his information in the 
form and context in which they appear.

The ore reserve estimates have been compiled in accordance with the guidelines defined 
in the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore 
Reserves (The JORC Code, 2012 Edition).

ANNUAL AND SUSTAINABILITY REPORT 2017Carrapateena Mineral Resources 
and Ore Reserves
The complete Carrapateena Mineral 
Resource and Ore Reserve statements can 
be found at: ozminerals.com/operations/
resources-reserves.html

MIn eR A L  R eSoU R CeS 

AnD o Re   R eSeR VeS

8 7

Carrapateena Mineral Resources
The Carrapateena 2017 Mineral Resources is summarised in the table below. The Mineral 
Resource is current as of 18 November 2016 and has been restated in 2017. The 17 October 
2016 Mineral Resource is also shown below for comparison.

Year

2016

2016

2017

Classification

Tonnes 

Indicated

Inferred

Total

Measured

Indicated

Inferred

Total

Measured

Indicated

Inferred

Total

Mt

126

7

133

61

65

8

134

61

65

8

134

Cu 

%

1.5

1.0

1.5

1.4

1.6

0.8

1.5

1.4

1.6

0.8

1.5

Estimate Date

Release Date

17 October 2016

7 November 2016

18 November 2016

9 December 2016

18 November 2016

24 August 2017

Note: Table subject to rounding errors.

The Mineral Resource statement includes additional drilling from 2016 which focused on the 
upper part of the deposit between 4200mRL – 4600mRL. The aims of the drilling were to 
confirm grade and geological continuity across the deposit and upgrade a proportion of the 
Mineral Resource to Measured Resources.

The differences in resource tonnages and grades between the November 2016 Mineral 
Resource and the October 2016 Mineral Resource are immaterial although the November 
2016 Mineral Resource has a higher level of confidence.

Carrapateena Mineral Resources – 18 november 2016(a)

Classification

Tonnes

Measured

Indicated

Inferred

Total

Mt

61

65

8

134

Cu 

%

1.4

1.6

0.8

1.5

Au 

g/t

0.6

0.6

0.4

0.6

Ag 

g/t

Cu 

kt

Au

Moz

6

7

4

7

880

1,030

60

1,970

1.2

1.3

0.1

2.6

Ag 

Moz

12.4

14.7

0.9

27.9

Note: Table subject to rounding errors. 
(a) All material, whether mineralised or not, contained in a reasonable prospects shape designed at a $70 NSR cut-off value.

8 8

Carrapateena Ore Reserves
The Pre-feasibility Study and Ore  
Reserve estimate has been updated for 
the 2016 Mineral Resource Estimate as at 
18 November 2016. The update includes 
a revision to the mine access and material 
handling system, and modifications to the 
mining footprint where required. Based 
on the mining and processing schedules 
completed for the study update, together 
with ongoing metallurgical test-work, the 
Carrapateena Project is no longer reliant 
on the incorporation of a Concentrate 
Treatment Plant (CTP), and has not  
been included.

Carrapateena ore Reserves as at 4 August 2017(a)

Classification

Tonnes

Proved

Probable

Total

Note: Table subject to rounding errors.
(a) Based on $100 NSR cut-off value.

Mt

0

79

79

Cu 

%

0.0

1.8

1.8

Au 

g/t

0.0

0.7

0.7

Ag 

g/t

0

9

9

Cu 

kt

0

  1,400

  1,400

Au

Moz

0

1.8

1.8

Ag 

Moz

0

22

22

Material changes in Carrapateena Mineral Resources  
and Ore Reserves
OZ Minerals confirms that it is not aware of any new information or data that would 
materially affect the Carrapateena Mineral Resource estimate as at 18 November 2016  
or Carrapateena Ore Reserve estimate as at 4 August 2017.

Competent Persons’ Statements  
Carrapateena Mineral Resources and Ore Reserve
The information set out in these tables is a summary of information relating to Carrapateena 
Mineral Resources and Ore Reserves set out in the documents, Carrapateena Project Mineral 
Resource, released originally on 9 December 2016 and subsequently re-stated on 24 August 
2017; and Carrapateena Ore Reserve Statements and Explanatory Notes released on  
24 August 2017 and are available at ozminerals.com/operations/resources-reserves.html.

The information in this report that relates to Mineral Resources is based on information 
compiled by Stuart Masters, a Competent Person who is a Member of The Australasian 
Institute of Mining and Metallurgy (108430) and a Member of the Australian Institute  
of Geoscientists (5683).

Stuart Masters BSc (Geology), CFSG, has over 30 years of relevant and continuous experience 
as a geologist including 12 years in iron-oxide–Copper–Gold-style deposits. Stuart Masters 
has visited the site on ten occasions since OZ Minerals acquired the project including three 
times since the 2013 Mineral Resource was reported and once since the 2015 Mineral 
Resource was originally reported.

Stuart Masters is a full time employee of CS 2 Pty Ltd and has no interest in, and is entirely 
independent of, OZ Minerals. Stuart Masters has sufficient experience that is 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’ 
(JORC 2012). Stuart Masters consents to the inclusion in the report of the matters based on 
his information in the form and context in which it appears.

Stuart Masters CS-2 Pty Ltd.

ANNUAL AND SUSTAINABILITY REPORT 2017MIn eR A L  R eSoU R CeS 

AnD o Re   R eSeR VeS

8 9

Governance arrangements
OZ Minerals has a longstanding Mineral Resource and Ore Reserve Policy, which establishes 
company-wide consistency, rigour and discipline in the preparation and reporting of Mineral 
Resources and Ore Reserves in accordance with industry best practice. The policy sets out:

 / reporting requirements

 / review and approval requirements

 / company standards

 / accountabilities in relation to the assumptions and estimates used for Mineral Resource  
and Ore Reserve calculations; review, implementation and compliance with the policy;  
and delivery of Mineral Resource and Ore Reserve estimates and findings to the Board.

Updates to Mineral Resource and Ore Reserve estimates compiled during 2017 were 
completed in accordance with the guiding principles contained within the policy, suitably 
modified to meet current company structures, delegated authorities and estimate 
requirements.

These included:

 / Reporting in compliance with the 2012 Edition of the Australasian Code for Reporting  
of Exploration Results, Mineral Resources and Ore Reserves (JORC Code 2012 Edition)

 / Suitably qualified and experienced Competent Persons

 / All Mineral Resource and Ore Reserve estimates being subject to internal and external 

review and independent review by suitably qualified practitioners, inclusive of the 
Competent Persons

 / Approval by the Board of the Mineral Resources and Ore Reserves estimates prior to  

release to the market.

The information in this report that relates  
to Carrapateena Ore Reserves is based 
on and fairly represents information and 
supporting documentation compiled by 
Murray Smith B.Eng. (Mining), a Competent 
Person who is a Member and Chartered 
Professional of the Australasian Institute 
of Mining and Metallurgy (AusIMM 
Membership No. 111064).

Murray Smith is a full time employee of 
Mining Plus Pty Ltd, and prior to the 2017 
Carrapateena Feasibility Study had no 
dealings with OZ Minerals Limited. Murray 
Smith is not a shareholder in OZ Minerals 
Limited, and is considered to be independent 
of OZ Minerals Limited.

Murray Smith BEng (Min) has over 20 years 
of experience as a mining engineer, and has 
sufficient experience that is relevant to the 
style of mineralisation and type of deposit 
under consideration and to the activities 
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’ (JORC 2012). Murray Smith 
consents to the inclusion in this report of  
the matters based on his information in  
the form and context in which it appears.

The Ore Reserve estimate has been  
compiled in accordance with the guidelines 
defined in the ‘Australasian Code for 
Reporting of Exploration Results, Mineral 
Resources and Ore Reserves’ (The JORC 
Code, 2012 Edition).

9 0

ANNUAL AND SUSTAINABILITY REPORT 2017f InAnC I A L  R ePoR

t

9 1

Financial 
Report

9 2

Auditor’s Independence 
Declaration

Lead Auditor’s Independence Declaration under  
Section 307C of the Corporations Act 2001

To the Directors of OZ Minerals Limited

I declare that, to the best of my knowledge and belief, in relation to the audit of OZ Minerals 
Limited for the financial year ended 31 December 2017 there have been:

i.  no contraventions of the auditor independence requirements as set  

out in the Corporations Act 2001 in relation to the audit; and

ii.  no contraventions of any applicable code of professional conduct in  

relation to the audit.

KPMG

Paul Cenko

Partner

Adelaide

22 February 2018 

© 2018 KPMG, an Australian partnership and a member firm of the KPMG network of independent member firms affiliated with 
KPMG International Cooperative (“KPMG International”), a Swiss entity. All rights reserved. The KPMG name and logo are registered 
trademarks or trademarks of KPMG International. Liability limited by a scheme approved under Professional Standards Legislation.

ANNUAL AND SUSTAINABILITY REPORT 2017f InAnC I A L  R ePoR

t

9 3

Consolidated Statement 
of Comprehensive Income

For the year ended 31 December 2017

Revenue

Net foreign exchange (losses)/gains

Other income

Changes in inventories of ore and concentrate

Consumables and other direct costs

Employee benefit expenses

Exploration and evaluation expenses

Freight expenses

Royalties expense

Depreciation expense

Legal costs associated with Class Action

Other expenses

Profit before net financing income and income tax

Financing income

Financing expenses

Net financing income

Profit before income tax

Income tax expense 

Profit for the year attributable to equity holders of OZ Minerals Limited

Other comprehensive income

Items that will not be reclassified subsequently to future Income Statements

Change in fair value of investments in equity securities, net of tax

Items that may be reclassified subsequently to future Income Statements

Net (losses)/gains on cash flow hedges, net of tax

Other comprehensive loss for the year, net of tax

Total comprehensive income for the year attributable  
to equity holders of OZ Minerals Limited       

Basic and diluted earnings per share

Basic and diluted earnings per share

The above Consolidated Statement of Comprehensive Income should be read in conjunction with the accompanying Notes.

Notes

1

7

3

13

2

2017 
$m 

1,023.1

(6.3)

5.0

190.2

(332.3)

(56.2)

(21.1)

(63.6)

(52.9)

(323.5)

                 –

(41.7)

320.7

12.5

(3.8)

8.7

329.4

(98.3)

231.1

(0.2)

(7.2)

(7.4)

223.7

Cents

77.4

2016  
$m

822.9

2.7

6.8

227.8

(313.7)

(60.4)

(29.3)

(52.9)

(42.2)

(361.5)

(37.9)

(35.1)

127.2

13.8

(4.8)

9.0

136.2

(28.4)

107.8

(10.3)

3.6

(6.7)

101.1

Cents

35.7

9 4

Consolidated Statement 
of Changes in Equity

Notes

Issued  
capital $m

Retained 
earnings $m

Cash flow hedge 
reserve $m

Treasury  
shares $m

Total  
equity $m

For the year ended 31 December 2017

Balance as at 1 January 2017

Total comprehensive income for the year

Profit for the year

Other comprehensive gain/(loss) 

Total comprehensive income for the year

Transactions with owners, recorded directly in equity

Dividends

Share-based payment transactions, net of income tax

Purchase of treasury shares

Exercise of performance rights

Total transactions with owners

Balance as at 31 December 2017

For the year ended 31 December 2016

Balance as at 1 January 2016

Total comprehensive income for the year

Profit for the year

Other comprehensive gain/(loss) 

Total comprehensive income for the year

Transactions with owners, recorded directly in equity

Dividends

Share-based payment transactions, net of income tax

Share buy-back

Purchase of treasury shares

Exercise of performance rights

Total transactions with owners

Balance as at 31 December 2016

2,029.0

323.8

–

–

–

–

–

–

–

–

2,029.0

231.1

(0.2)

230.9

(59.7)

5.3

–

(8.0)

(62.4)

492.3

2,058.9

285.6

–

–

–

–

–

(29.9)

–

–

(29.9)

2,029.0

107.8

(10.3)

97.5

(60.6)

6.9

–

–

(5.6)

(59.3)

323.8

4

12

4

12

11

The above Consolidated Statement of Changes in Equity should be read in conjunction with the accompanying Notes.

3.6

–

(7.2)

(7.2)

–

–

–

–

–

(3.6)

–

–

3.6

3.6

–

–

–

–

–

–

3.6

(2.1)

2,354.3

–

–

–

–

–

(7.3)

8.0

0.7

(1.4)

231.1

(7.4)

223.7

(59.7)

5.3

(7.3)

–

(61.7)

2,516.3

(0.6)

2,343.9

–

–

–

–

–

–

(7.1)

5.6

(1.5)

(2.1)

107.8

(6.7)

101.1

(60.6)

6.9

(29.9)

(7.1)

–

(90.7)

2,354.3

ANNUAL AND SUSTAINABILITY REPORT 2017f InAnC I A L  R ePoR

t

9 5

Consolidated  
Balance Sheet

At 31 December 2017

Current assets

Cash and cash equivalents

Trade receivables

Lease receivable

Other receivables

Inventories

Prepayments

Assets held for sale

Total current assets

Non-current assets

Inventories

Investments in equity securities

Derivative financial instruments 

Exploration assets - Carrapateena

Lease receivable

Property, plant and equipment

Total non-current assets

Total assets

Current liabilities

Trade payables and accruals

Other payables

Current tax provision

Employee benefits

Provisions

Derivative financial instruments

Total current liabilities

Non-current liabilities

Deferred tax liabilities

Employee benefits

Provisions

Derivative financial instruments

Total non-current liabilities

Total liabilities

Net assets

Equity

Issued capital

Cash flow hedge reserve

Retained earnings

Treasury shares

Total equity attributable to equity holders of OZ Minerals Limited

The above Consolidated Balance Sheet should be read in conjunction with the accompanying Notes.

Notes

8

5

7

5

13

13

7

8

7

3

9

13

3

9

13

11

2017 
$m 

729.4

121.9

19.6

10.8

262.5

3.9

–

1,148.1

484.4

18.0

–

–

–

1,175.8

1,678.2

2,826.3

94.1

3.5

101.1

10.0

6.7

11.6

227.0

47.4

1.8

29.1

4.7

83.0

310.0

2,516.3

2,029.0

(3.6)

492.3

(1.4)

2,516.3

2016  
$m

655.7

69.4

–

7.8

197.1

4.9

9.4

944.3

360.0

18.2

5.1

284.9

27.5

990.6

1,686.3

2,630.6

74.4

3.0

69.0

9.0

8.3

11.1

174.8

63.5

2.0

36.0

–

101.5

276.3

2,354.3

2,029.0

3.6

323.8

(2.1)

2,354.3

 
9 6

Consolidated Statement 
of Cash Flows

For the year ended 31 December 2017

Notes

Cash flows from operating activities

Receipts from customers

Payments to suppliers and employees

Payments for exploration and evaluation

Payment of income tax 

Financing costs

Interest received 

Net cash inflows from operating activities

Cash flows from investing activities

Payment for property, plant and equipment

Payment for Carrapateena evaluation expenditure

Proceeds from disposal of investments

Net cash outflows from investing activities

Cash flows from financing activities

Dividends paid to shareholders

Payments for share buy-back

Payments for acquisition of treasury shares

Net cash outflows from financing activities

Net increase/(decrease) in cash held

Cash and cash equivalents at beginning of the year

Effects of exchange rate changes on foreign currency denominated cash balances

Cash and cash equivalents at the end of the year

The above Consolidated Statement of Cash Flows should be read in conjunction with the accompanying Notes.

6

4

11

2017 
$m 

1,000.3

(568.5)

(21.6)

(79.2)

(0.9)

12.8

342.9

(151.2)

(45.8)

–

(197.0)

(59.7)

–

(7.3)

(67.0)

78.9

655.7

(5.2)

729.4

2016  
$m

874.0

(529.9)

(29.3)

–

(2.0)

11.3

324.1

(99.8)

(25.6)

3.3

(122.1)

(60.6)

(29.9)

(7.1)

(97.6)

104.4

552.5

(1.2)

655.7

ANNUAL AND SUSTAINABILITY REPORT 2017f InAnC I A L  R ePoR

t

9 7

Notes to the Consolidated  
Financial Statements 
Group Performance

The principal business activities of  
OZ Minerals Limited (OZ Minerals or  
the Company) and its controlled entities 
(collectively the ‘Consolidated Entity’)  
were the mining and processing of 
ore containing copper, gold and silver, 
undertaking exploration activities and 
development of mining projects. 

1. Operating Segments

Segment

Principal activities

Prominent Hill

The Company is incorporated and domiciled 
in Australia and limited by shares which are 
publicly traded on the Australian Securities 
Exchange. OZ Minerals registered office is 
Level 1, 162 Greenhill Road, Parkside, 5063, 
South Australia, Australia.

Carrapateena

Exploration &  
Development

The Consolidated Financial Statements of OZ 
Minerals Limited and its controlled entities 
for the year ended 31 December 2017:

Corporate  
(corporate activities)

Mining and processing ore containing copper, gold and silver from the Prominent Hill 
Mine, a combined open pit and underground mine located in  
the Gawler Craton of South Australia. The Prominent Hill Mine generates revenue 
from the sale of concentrate containing copper, gold and silver to customers in Asia, 
Europe and Australia.

Exploration, evaluation and development associated with the Carrapateena project 
located in South Australia.

Exploration and evaluation activities associated with other projects and include 
exploration arrangements with Minotaur Exploration Ltd, Cassini Resources Limited, 
Toro Energy Limited, Mithril Resources, Acapulco Gold, Red Tiger Resources, Avrupa 
Minerals and Corporate Development activities.

Other corporate activities include the Consolidated Entity’s group office 
 (which includes all corporate expenses that cannot be directly attributed  
to the operation of the Consolidated Entity’s operating segments), other investments 
in equity securities and cash balances.

 / include general purpose Financial 

Statements prepared by a for profit entity 
in accordance with Australian Accounting 
Standards (‘AASBs’) and the Corporations 
Act 2001, and comply with International 
Financial Reporting Standards (‘IFRS’)

 / are presented in Australian dollars which 

is also the functional currency of the 
Company and all its controlled entities

 / have amounts rounded off to within the 
nearest million dollars to one decimal  
place unless otherwise stated, in 
accordance with Instrument 2016/191, 
issued by the Australian Securities and 
Investments Commission. 

The Consolidated Financial Statements have 
been prepared on a going concern basis  
and under the historical cost convention, 
except for the following items which are 
measured at fair value, or otherwise, in 
accordance with the provisions of applicable 
accounting standards:

 / financial instruments, including trade 

receivables

 / investments in equity securities

 / derivative financial instruments

Recognition and measurement of revenue 

Revenue from sale of concentrates is recognised upon transfer of risks and rewards to the 
customer when the price is fixed or determinable, no further processing is required, the 
quantity and quality of the goods has been determined with reasonable accuracy, and 
collectability is probable. This is generally when the concentrates are loaded on to the vessel 
at the port of shipment or in the case of domestic sales when the concentrates are delivered 
to the customer’s premises.

Measurement of sales revenue is based on the most recently determined estimate of product 
specifications with a subsequent adjustment made to revenue upon final determination of 
metal content in concentrates by customer. These adjustments are typically insignificant 
relative to the total sales value.

The terms of concentrate sales contracts contain provisional pricing arrangements. The 
commodity price for metal in concentrate is based on prevailing prices at the time of 
shipment to the customer. Adjustments to the commodity price occur based on movements 
in quoted market prices up to the date of final settlement. Receivables arising from sales 
contracts are initially recognised at fair value, with subsequent changes in fair value 
recognised in the Income Statement in each period until final settlement, as an adjustment 
to revenue. Changes in fair value over the quotation period and up until final settlement are 
estimated by reference to forward market prices.

Revenue is reported net of treatment and refining charges, other commercial costs, pricing 
adjustments, and gains/losses from copper derivative contracts. 

net Revenue by geographical region

 / items of inventory and property, plant  

and equipment which have been written 
down in accordance with applicable 
accounting standards.

Other than the final dividend for the year 
ended 31 December 2017, as discussed in 
Note 4, no events have occurred subsequent 
to reporting date which have significantly 
affected or may significantly affect the 
Consolidated Entity’s operations or results  
in future years. 

)

m
$
(

s
e
t
a
r
t
n
e
c
n
o
c

f
o
s
e
l
a
s
m
o
r
f

e
u
n
e
v
e
R

600

400

200

0

10.3

139.8

534.7

10.4

118.1

438.7

2017
Asia

2016
Asia

Copper

Gold

Silver

4.8

64.8

229.6

3.7
43.8

132.1

2017
Australia

2016
Australia

8.1

0.5
30.5

2017
Europe

16.3

1.5

58.3

2016
Europe

Revenue information presented on the previous page is based on the location of the 
customer’s operations. Major customers who individually accounted for more than ten per cent 
of total revenue contributed approximately 75 per cent of total revenue (2016: 69 per cent). 

 
 
 
 
 
9 8

Segment Result: Underlying EBITDA, Underlying EBIT and Underlying NPAT are used internally by management to assess performance of the 
business, make decisions on allocating resources and assess operational management.

Prominent Hill 
$m

Carrapateena 
$m

Exploration & 
Development 
$m

Corporate 
$m

Consolidated 
$m

31 December 2017 

Revenue – Copper

Revenue – Gold and Silver

Treatment and refining charges(a) 

Net Revenue

Mining 

Processing

Freight expense

Site general and administration

Royalties

Deferred waste adjustment

Inventory adjustment

Cost of goods sold

Corporate general and administration

Exploration and other income/(expenses)

Net realisable value adjustments

Foreign exchange gain/(loss)

Underlying EBITDA

Depreciation of PPE

Capitalised depreciation into inventory

Net Depreciation

Underlying EBIT

Net finance income

Income tax expense

Underlying Net Profit after tax

Net Profit for the year attributable to equity holders of OZ Minerals Limited

(a) Treatment and refining charges includes other commercial costs.

880.9

229.4

(87.2)

1,023.1

(275.6)

(99.0)

(63.6)

(21.7)

(52.9)

4.0

68.7

(440.1)

(10.9)

(0.6)

16.8

(5.2)

583.1

(320.5)

104.8

(215.7)

367.4

–

–

–

–

–

–

–

–

–

–

–

–

–

(5.2)

–

–

(5.2)

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

(0.1)

(20.1)

–

–

(20.2)

–

–

–

(5.2)

(20.2)

–

–

–

–

–

–

–

–

–

–

–

–

(20.5)

3.3

–

(1.1)

(18.3)

(3.0)

–

(3.0)

(21.3)

880.9

229.4

(87.2)

1,023.1

(275.6)

(99.0)

(63.6)

(21.7)

(52.9)

4.0

68.7

(440.1)

(31.5)

(22.6)

16.8

(6.3)

539.4

(323.5)

104.8

(218.7)

320.7

8.7

(98.3)

231.1

231.1

ANNUAL AND SUSTAINABILITY REPORT 2017f InAnC I A L  R ePoR

t

9 9

Prominent Hill 
$m

Carrapateena 
$m

Exploration & 
Development 
$m

Corporate 
$m

Consolidated 
$m

725.1

197.0

(99.2)

822.9

(296.2)

(91.3)

(52.9)

(19.7)

(42.2)

36.6

85.4

(380.3)

(10.5)

0.7

(10.5)

(4.1)

418.2

(356.5)

152.8

(203.7)

214.5

–

–

–

–

–

–

–

–

–

–

–

–

–

(12.9)

–

–

(12.9)

(3.1)

–

(3.1)

(16.0)

–

–

–

–

–

–

–

–

–

–

–

–

(0.5)

(16.4)

–

–

(16.9)

–

–

–

(16.9)

–

–

–

–

–

–

–

–

–

–

–

–

(25.7)

4.3

–

6.8

(14.6)

(1.9)

–

(1.9)

(16.5)

725.1

197.0

(99.2)

822.9

(296.2)

(91.3)

(52.9)

(19.7)

(42.2)

36.6

85.4

(380.3)

(36.7)

(24.3)

(10.5)

2.7

373.8

(361.5)

152.8

(208.7)

165.1

9.0

(39.8)

134.3

(26.5)

107.8

31 December 2016 

Revenue – Copper

Revenue – Gold and Silver

Treatment and refining charges(a)

Net Revenue

Mining 

Processing

Freight expense

Site general and administration

Royalties

Deferred waste adjustment

Inventory adjustment

Cost of goods sold

Corporate general and administration

Exploration and other income/(expenses)

Net realisable value adjustments

Foreign exchange gain

Underlying EBITDA

Depreciation of PPE

Capitalised depreciation into inventory

Net Depreciation

Underlying EBIT

Net finance income

Income tax expense

Underlying Net Profit after tax

Non underlying items net of tax(b) 

Net Profit for the year attributable to equity holders of OZ Minerals Limited

(a) Treatment and refining charges includes other commercial costs.
(b) The non-underlying item net of tax is the settlement and legal cost associated with the class action incurred in 2016.

1 0 0

2. Earnings per share

Basic and diluted earnings per share – cents

Basic and diluted earnings per share

2017

77.4

2016

35.7

Inputs used in calculating basic and diluted earnings per share – $ millions

Profit after tax

Weighted average number of ordinary shares on issue 
used in the calculation of basic earnings per share

231.1

107.8

298,582,892

301,740,328

Basic earnings per share is calculated by dividing the profit attributable to equity holders of 
OZ Minerals Limited, by the weighted average number of ordinary shares outstanding during 
the financial year. The weighted average is determined by the total number of shares on issue 
less treasury shares held by the Company throughout the period.

Diluted earnings per share adjusts the amounts used in the determination of basic earnings 
per share to take into account dilutive potential ordinary shares and the weighted average 
number of shares assumed to have been issued for no consideration in relation to dilutive 
potential ordinary shares.

3. Income tax
Income tax expense comprises current and deferred tax of the Consolidated Entity. Current 
and deferred tax expenses are recognised in Other Comprehensive Income or directly in 
equity as is appropriate.

Tax consolidation

OZ Minerals Limited and its wholly-owned Australian controlled entities are part of a tax 
consolidated group. OZ Minerals Limited is the head company of the tax consolidated group.

Income tax expense in the Income Statement

Current income tax (expense)/benefit

Deferred income tax (expense)/benefit

Income tax (expense)/benefit

Reconciliation of income tax expense  
to pre-tax profit

Profit before income tax

Income tax expense at the Australian tax rate of 30 per cent

Adjustments:

Non-deductible expenditure

Revision for prior periods 

Research and development benefits

Recognition of previously unrecognised tax losses

Income tax expense

2017 
$m

(111.3)

13.0

(98.3)

2017 
$m

329.4

(98.8)

(0.7)

0.3

0.9

–

(98.3)

2016 
$m

(69.0)

40.6

(28.4)

2016 
$m

136.2

(40.9)

(2.1)

1.0

–

13.6

(28.4)

RE C OVERABILITY OF   
DE FE RRED TAX ASSETS

The Consolidated Entity is subject to income 
taxes of Australia and jurisdictions where it 
has foreign operations. Significant judgement 
is required in the application of income tax 
legislation to determine the provision for 
income taxes. There are many transactions 
and calculations undertaken during the 
ordinary course of business for which the 
ultimate tax determination is uncertain, and 
for which provisions are based on estimated 
amounts. Where the final tax outcome of 
these matters is different from the amounts 
that were initially recorded, such differences 
will impact the current and deferred tax  
provision in the period in which the 
determination is made.

Assumptions about the generation of future 
taxable profits influence the ability of the 
Consolidated Entity to recognise (or continue 
to recognise) deferred tax assets. Taxable 
profit estimates are based on estimated 
future production and sales volumes, 
commodity prices, foreign exchange rates, 
operating costs, restoration costs and capital 
expenditure. A change in these assumptions 
may impact the amount of deferred tax 
assets recognised in the balance sheet in 
future periods.

ANNUAL AND SUSTAINABILITY REPORT 2017f InAnC I A L  R ePoR

t

1 0 1

Deferred tax assets and liabilities

Opening  
balance 
$m

Recognised  
in Income 
Statement 
$m

Recognised  
in Equity
$m

Closing  
balance 
$m

2017

Restricted tax losses

Property plant and equipment

Inventories

Provisions and accruals

Derivative financial instruments

Other

Net deferred tax liabilities

2016

Unrestricted tax losses and offsets

Restricted tax losses

Property plant and equipment

Inventories

Provisions and accruals

Derivative financial instruments

Other

Net deferred tax liabilities

49.5

(135.6)

(4.8)

11.2

1.8

14.4

(63.5)

8.3

49.0

(170.6)

(4.8)

10.5

–

5.0

(102.6)

(17.0)

30.2

0.1

(0.8)

1.7

(1.2)

13.0

(8.3)

0.5

35.0

–

0.7

3.3

9.4

40.6

–

–

–

–

3.1

–

3.1

–

–

–

–

–

(1.5)

–

(1.5)

32.5

(105.4)

(4.7)

10.4

6.6

13.2

(47.4)

–

49.5

(135.6)

(4.8)

11.2

1.8

14.4

(63.5)

Recognised restricted tax losses are subject to an available fraction which limits the amount of these losses that can be utilised each 
year and may only be utilised after unrestricted tax losses are utilised. 

Unrecognised tax losses
During the year, a review of unrecognised tax losses was undertaken and as a result no 
additional restricted tax losses were recognised in the Balance Sheet. Restricted tax losses of 
$178.1 million tax effected (2016: $178.1 million tax effected) remain unrecognised in the 
Balance Sheet at 31 December 2017. Capital tax losses of $595.0 million tax effected (2016: 
$592.5 million tax effected) remain unrecognised in the Balance Sheet at 31 December 2017.

1 0 2

Recognition and measurement of income taxes
Current tax

The tax currently payable is based on taxable profit for the year, using rates enacted or 
substantively enacted at reporting date, and any adjustments to tax payable in respect of 
previous years.

Deferred tax 

Deferred tax assets and liabilities are determined using the balance sheet method which 
calculates temporary differences based on the difference between the carrying amount of the 
Consolidated Entity’s assets and liabilities in the balance sheet and their associated tax bases.

Deferred tax assets and liabilities are not recognised for temporary differences arising from 
investments in subsidiaries where the consolidated entity is able to control the reversal of 
the temporary differences, and it is probable they will not reverse in the foreseeable future. 
Deferred tax assets are recognised to the extent that it is probable that future taxable income 
will be available to utilise them.

The carrying amount of deferred tax assets is reviewed at the end of each reporting date and 
adjusted based on estimates of future taxable income and or capital gains against which the 
deferred tax asset could be utilised.

Deferred tax assets and liabilities are measured at the tax rates applicable to each jurisdiction 
which are expected to apply in the period when the assets are realised or liabilities discharged 
and are offset where they relate to the same tax authority and there is a legally enforceable 
right to offset.

4. Dividends
Since the end of the financial year, the Board of Directors has resolved to pay a fully franked 
dividend of 14 cents per share, to be paid on 26 March 2018. The record date for entitlement 
to this dividend is 12 March 2018. The financial impact of the dividend amounting to $41.8 
million has not been recognised in the Consolidated Financial Statements for the year ended 
31 December 2017 and will be recognised in subsequent Consolidated Financial Statements.

The details in relation to dividends announced or paid since 1 January 2016  
are set out below:

Record date

Date of  
payment

Unfranked 
cents per share(a)

Fully franked 
cents per share

Total dividends 
$m

12 March 2018

26 March 2018

7 September 2017

21 September 2017

10 March 2017

24 March 2017

9 September 2016

23 September 2016

24 February 2016

10 March 2016

–

– 

–

6

14

14

6 

14

–

–

41.8

17.9

41.8

18.1

42.5

(a) For Australian income tax purposes, the unfranked dividends was declared to be conduit foreign income.

ANNUAL AND SUSTAINABILITY REPORT 2017f InAnC I A L  R ePoR

t

1 0 3

Net Cash and 
Capital Employed

NET REALISABLE   
VA LUE  OF INVENTORIES

5. Inventories

Inventories are recognised at the lower  
of cost and net realisable value (‘NRV’).

Net realisable value of ore is based on 
the estimated amount expected to be 
received when the ore is processed and 
sold, less incremental costs to convert the 
ore to concentrate and selling costs. The 
computation of net realisable value for 
stockpiles involves significant judgements 
and estimates in relation to future ore  
blend rates, timing of processing, 
processing costs, commodity prices, foreign 
exchange rates, discount rates and the 
ultimate timing of sale of concentrates 
produced. A change in any of these critical 
assumptions will alter the estimated net 
realisable value and may therefore impact 
the carrying value of inventories.

)

m
$
(

e
u
a
v

l

y
r
o
t
n
e
v
n
I

350

300

250

200

150

100

50

0

321.0

228.6

31 December 2017

31 December 2016

191.2

127.7

163.4

131.4

50.5

48.2

Concentrates
at cost

Ore stockpile
(current) at cost

Ore stockpile
(non current)
at cost

Ore stockpile
(non current)
at NRV

Concentrates – at cost

Ore Stockpile – at cost

Stores and consumables – at cost 

Inventories – current 

Ore Stockpile – non-current at cost

Ore Stockpile – non-current at net realisable value

Inventories – non-current 

Total Inventories

2017 
$m

50.5

191.2

20.8

262.5

321.0

163.4

484.4

746.9

20.8

21.2

Stores and
consumables
at cost

2016 
$m

48.2

127.7

21.2

197.1

228.6

131.4

360.0

557.1

An assessment of the net realisable value of non-current ore resulted in an adjustment to increase 
the value of inventory by $16.8 million in respect of low grade gold ore stockpiles being recognised 
in 2017 (2016: reduce by $10.5 million). The increase is a reversal of previous impairment.

Recognition and measurement of inventories
Inventory is valued at the lower of cost incurred in bringing product to its present location 
and condition and net realisable value.

Costs are assigned to individual items of inventory on the basis of weighted average costs. 
Cost comprises direct materials and labour, and a proportion of overhead expenditure directly 
related to the production of inventories. Expenditure directly related to the production 
of inventories includes processing costs, transportation costs to the point of sale, and 
depreciation of plant and equipment and mining property and development assets, the latter 
of which includes deferred stripping assets and mine rehabilitation costs incurred in the 
mining process.

Net realisable value is calculated by estimating the value that is expected to be realised upon 
sale of concentrate after deducting estimated costs of processing, and selling costs. This 
estimation is based on assumptions of future prices and costs, as well as expected future ore 
blend rates and timing of processing.

Inventories expected to be processed or sold within twelve months after balance date are 
classified as current assets, all other inventories are classified as non-current.

 
 
1 0 4

6. Operating cash flows
The Consolidated Entity’s operating cash flow reconciled to profit after tax is as follows:

Profit after tax for the year

Adjustments for:

Depreciation 

Lease Amortisation

FX loss on cash balances

Share based payments

Other items

Change in assets and liabilities:

Trade and other receivables 

Prepayments

Inventories

Trade and other payables

Provision for employee benefits

Provision for demobilisation and other provisions

Net current and deferred tax liability

Net cash inflow from operating activities

2017 
$m

231.1

323.5

7.9

5.2

5.3

5.4

(55.5)

1.0

(189.8)

(5.4)

0.8

(5.7)

19.1

342.9

2016 
$m

107.8

361.5

7.3

1.2

6.9

9.6

25.9

–

(227.3)

5.2

(1.8)

(0.7)

28.5 

324.1

Recognition and measurement of cash and cash equivalents
Cash comprises cash on hand and demand deposits. Cash equivalents comprise short-
term and highly liquid cash deposits that are readily convertible to known amounts of cash 
and which are subject to an insignificant risk of change in value. For the purposes of the 
Consolidated Statement of Cash Flows, cash includes cash on hand, at call deposits and  
cash equivalents. 

ANNUAL AND SUSTAINABILITY REPORT 20177. Property, Plant and Equipment

2017

At cost

Accumulated depreciation and impairment losses

Closing carrying amount

Reconciliation of carrying amounts

Opening carrying amount

Reclassification of Exploration assets

Additions and transfers including deferred mining

Depreciation expense

Closing carrying amount

2016

At cost

Accumulated depreciation and impairment losses

Closing carrying amount

Reconciliation of carrying amounts

Opening carrying amount

Additions and transfers including deferred mining

Transfer of Tunnel Boring Machine to Assets held for sale

Depreciation expense

Closing carrying amount

f InAnC I A L  R ePoR

t

1 0 5

Plant and  
equipment 
$m

Mine property  
and development 
$m

Freehold land  
and buildings 
$m

Capital work  
in progress 
$m

Total  
$m

1,151.9

(838.4)

313.5

345.0

–

12.4

(43.9)

313.5

1,139.6

(794.6)

345.0

389.6

9.4

–

(54.0)

345.0

1,666.5

(1,336.4)

330.1

557.6

–

45.7

(273.2)

330.1

1,621.2

(1,063.6)

557.6

774.5

82.1

–

(299.0)

557.6

187.8

(126.9)

60.9

66.8

–

0.5

(6.4)

60.9

187.3

(120.5)

66.8

75.5

(0.2)

–

(8.5)

66.8

471.3

3,477.5

–

(2,301.7)

471.3

1,175.8

21.2

330.7

119.4

990.6

330.7

178.0

–

(323.5)

471.3

1,175.8

21.2

2,969.3

–

(1,978.7)

21.2

990.6

22.2

8.4

(9.4)

–

21.2

1,261.8

99.7

(9.4)

(361.5)

990.6

The original acquisition of Carrapateena provided for two further payments upon commercial 
production being reached.

 / US$50 million on production of copper, uranium, gold or silver.

 / US$25 million on production of rare earths, iron or any other commodity.

The further payments amounting to US$75 million do not constitute a liability and are not 
recognised in OZ Minerals balance sheet because OZ Minerals ha not reached the specified 
performance milestones on which payment is required.

Recognition and measurement of property, plant and equipment

Items of property, plant and equipment are stated at cost less accumulated depreciation  
and accumulated impairment losses. Cost includes expenditure that is directly attributable  
to the acquisition of the items and costs incurred in bringing assets into use. 

Mine property and development assets include costs transferred from exploration and 
evaluation assets once technical feasibility and commercial viability of an area of interest 
are demonstrable. After transfer, all subsequent expenditures to develop the mine to the 
production phase which are considered to benefit mining operations in future periods  
are capitalised. 

The proceeds from sale of any concentrate produced from ore extracted and processed as 
part of development of the asset prior to it being deemed ready for use, less any further 
processing and selling costs incurred, is deducted from the cost of the asset. 

The present value of the expected cost of decommissioning an asset after its use is included 
in the cost of the respective asset if the recognition criteria for a provision are met.

 
 
 
 
 
1 0 6

RE C OVERABILITY   
OF  A SSETS

Cash Generating Units are tested for 
impairment when there is an indication  
that the CGU may be impaired. Examples  
of impairment indicators include the group’s  
net assets exceeding its market capitalisation, 
unfavourable fluctuations in commodity 
prices and foreign exchange rates or a 
decline in the CGU’s operating performance.

The Consolidated Entity undertook a review of 
the Prominent Hill and Carrapateena CGU’s to 
determine whether there was any indication 
that these CGU’s had suffered an impairment 
loss. The Consolidated Entity concluded that 
there was no such indicators that either CGU 
was impaired at reporting date.

In reviewing for impairment indicators,  
the group assessed for negative trends in 
the significant judgements and assumptions 
which may impact the CGU’s valuation in 
future periods, including: 
 / Future cash flows based on Board  

approved internal budgets and forecasts 
which reflect expectations of resources and 
reserves, mine plans, short and long term 
commodity prices and foreign exchange 
rates, operating and capital costs. 
 / The value of Mineral Resources not 

modelled in Board approved budgets  
based on the use of an appropriate 
resource valuation multiple to the 
contained copper equivalent within  
the Resources applicable to the CGU.

 / The discount rate applied to the cash flows 
which reflects current market conditions. 

In addition, the Consolidated Entity  
monitors for impairment indicators by 
considering the impact of the above 
judgements and assumptions on the 
valuation of CGU’s through periodic  
updates to its business valuation models.  

Such assumptions are subject to variation  
as a result of changes in future economic 
and operational conditions. Consequently, 
the carrying value of the Consolidated 
Entity’s CGU’s may differ in future years  
if assumptions made do not eventuate  
and actual outcomes are less favourable  
than present assumptions.

Property Plant and Equipment is tested for impairment when there is an indication of 
impairment. For the purposes of assessing impairment, assets are grouped at the lowest levels 
for which there are separately identifiable cash inflows. An impairment loss is recognised for 
the amount by which the asset or Cash Generating Unit (CGU) carrying amount exceeds its 
recoverable amount. The recoverable amount is the higher of an asset’s fair value less costs to 
dispose and value in use. Assets that have been impaired are reviewed for possible reversal of 
impairment at each reporting date. 

Value in use is the net amount expected to be recovered through cash flows arising from 
continued use and subsequent disposal of an asset (or group of assets). In assessing value 
in use, estimated future cash flows are discounted to their present value using a pre-tax 
discount rate that reflects current market assessments of the time value of money and risks 
specific to the asset. 

The asset’s fair value less costs to dispose is the amount obtainable from the sale of an asset 
or cash-generating unit in an arm’s length transaction between knowledgeable, willing 
parties, less the estimated costs of disposal. 

A fair value measurement of a non-financial asset takes into account a market participant’s 
ability to generate economic benefits by using the asset in its highest and best use or by 
selling it to another market participant that would use the asset in its highest and best use.

The depreciation methods adopted by the Consolidated Entity are provided  
in the table below:

Category

Freehold land

Depreciation method

Not depreciated

Buildings and other infrastructure

Straight line over life of mine

Short term plant and equipment

Straight line over life of asset

Processing plant

Units of ore milled over mining inventory

Mine property and development

Units of ore extracted over mining inventory  
applicable to the development

Depreciation of assets commences when the assets are ready for their intended use. The 
depreciation of mine property and development commences when the mine is commissioned 
or deemed ready for use. 

The residual values, useful lives and methods of depreciation of property, plant and 
equipment are reviewed at each reporting period and adjusted prospectively, if appropriate. 
Where depreciation rates are changed, the net written down value of the asset is depreciated 
from the date of the change in accordance with the new depreciation rate, with the change 
accounted for as a change in accounting estimate.

During 2017, the useful life of mine property and development and processing plant assets 
depreciated on a units of production basis were reassessed and are now based on mining 
inventory (previously reserves), which includes all reserves and a portion of resources which are 
expected to be mined or processed in the course of the current mine plan. This more closely 
aligns to the benefits received by the assets from their use.

ANNUAL AND SUSTAINABILITY REPORT 2017f InAnC I A L  R ePoR

t

1 0 7

 ORE RES ER V ES  A ND  R ES OU RC ES  E ST IMATE S

The estimated quantities of economically recoverable reserves and resources are based  
upon interpretations of geological and geophysical models and require assumptions to be 
made regarding exchange rates, commodity prices, future capital requirements and future 
operating performance. 

Changes in reported reserves and resources estimates can impact the carrying value of 
property, plant and equipment including deferred mining expenditure, intangible assets, 
capitalised exploration, provisions for mine rehabilitation, restoration and dismantling 
obligations, recognition of deferred tax assets, as well as the amount of depreciation  
charged to the Income Statement. 

Changes in the carrying value of the assets may arise principally through changes in the 
income that can be economically generated from each project. Changes in depreciation 
expense may arise through a change in the useful life over which property, plant and 
equipment is depreciated.

CARRYING VALUE OF CAPITALISED 
EXPLORATION EXPENDITURE

Exploration assets

The accounting policy for exploration and 
evaluation expenditure requires judgement to 
determine whether future economic benefits 
are likely from either future exploitation or 
sale, or whether activities have not reached a 
stage that permits a reasonable assessment 
of the existence of reserves. 

In the event future economic benefits are 
unlikely or a reasonable assessment of the 
existence or otherwise of economic reserves 
is possible an impairment test may be 
required which may result in an adjustment 
to the carrying value of capitalised 
exploration expenditure. 

The ultimate recoupment of costs capitalised 
for exploration and evaluation phases is 
dependent on successful development 
and commercial exploitation or sale of the 
respective areas of interest.

Exploration assets-tangible

Exploration assets-Intangible

2017 
$m

32.7

45.8

(78.5)

–

2016 
$m

–

32.7

–

32.7

2017 
$m

252.2

–

(252.2)

–

2016 
$m

252.2

–

–

252.2

Opening Balance

Additions

Transfers

Closing Balance

Following the decision to proceed with development of the Carrapateena mine, the Consolidated 
Entity transferred the balance of exploration assets related to the Carrapateena project to Property 
Plant and Equipment in accordance with the accounting policy described below.

Recognition and measurement of exploration expenditure 
Exploration and evaluation expenditure is recognised in the Income Statement as incurred, 
unless the expenditure is expected to be recouped through successful development and 
exploitation of the area of interest, or alternatively by its sale, in which case it is recognised  
as an asset on an area of interest basis.

Exploration and evaluation assets are classified as tangible or intangible according to the 
nature of the assets. Exploration and evaluation assets are not depreciated and are assessed 
for impairment if:

 / sufficient information exists to determine technical feasibility and commercial viability; or 

 / other facts and circumstances suggest that the carrying amount exceeds the  

recoverable amount.

For the purposes of impairment testing, exploration and evaluation assets are allocated to 
CGUs to which the exploration activity relates. A CGU is not larger than the area of interest.

Once the technical feasibility and commercial viability of the extraction of mineral reserves in 
an area of interest are demonstrable, exploration and evaluation assets attributable to that 
area of interest are first tested for impairment and then reclassified to mine property and 
development assets within property, plant and equipment.

From time to time the Consolidated Entity enters into arrangements which enable it to secure 
the opportunity to explore and potentially earn the right to mineralisation if discovered on 
underlying exploration tenements held by other entities (earn-in arrangements). Expenditure 
incurred under earn-in arrangements is expensed as incurred. Under these agreements  
OZ Minerals does not assume any liabilities or hold any rights to other assets that the holder 
of the tenement may possess.

1 0 8

Assets held for sale
The Tunnel Boring Machine previously classified as Non-current Assets Held for Sale and 
Discontinued Operations in accordance with AASB 5 was sold during the year.

8. Lease receivable

Recognition and measurement of finance lease receivable
Leases which transfer substantially all the risk and rewards of ownership of an asset are 
classified as finance leases. Where a finance lease is provided, the item of equipment is 
derecognised and the present value of the minimum lease payments receivable are recognised 
as a lease receivable. Contingent rents are recognised as revenue in the period in which they 
are earned.

The finance lease receivable represents the consideration paid by OZ Minerals to acquire 
mining equipment which was leased back to Thiess on an interest free basis. OZ Minerals 
benefits progressively over the mining services contract from reduced mining services  
charges by Thiess. Upon termination of the mining services contract, any carrying value  
of lease receivable is expected to be recovered by OZ Minerals from a resale of the  
equipment to Thiess. 

The finance lease receivable of $19.6m as at 31 December 2017 comprises $27.5m from  
the comparative year, less a $7.9 million (2016: $7.3 million) amortisation charge against  
the finance lease receivable during the year.

9. Provisions

 MINE REHA BILITATION ,  RE S TO RATIO N   
 AND DISMA NTL IN G  OBLIGATION S

The provision for mine rehabilitation includes future cost estimates associated with 
reclamation, plant closures, waste site closures, monitoring, demobilisation of equipment, 
decontamination, water purification and permanent storage of historical residues. 

Uncertainty exists as to the amount of rehabilitation obligations which will be incurred due 
to the impact of changes in environmental legislation, and many other factors, including 
future changes in technology, price increases and changes in interest rates. The calculation 
of these provision estimates requires assumptions such as application of environmental 
legislation, plant closure dates, available technologies, engineering cost estimates and 
discount rates. A change in any of the assumptions used may have a material impact on  
the carrying value of mine rehabilitation, restoration and dismantling provisions.

Recognition and measurement of provisions
Provisions are measured at the present value of the best estimate of the expenditure required 
to settle the present obligation at balance sheet date. The discount rate used to determine 
the present value reflects current market assessments of the time value of money and the 
risks specific to the liability. The increase in provisions due to the passage of time is recognised 
in the Income Statement as financing expenses.

Provisions are made for the estimated cost of rehabilitation, decommissioning and restoration 
relating to areas disturbed during mining and exploration operations up to the reporting date 
but not yet rehabilitated. Provisions for mine rehabilitation are based on current estimates of 
costs to rehabilitate such areas, discounted to their present value based on expected future 
cash flows. The estimated costs include the current cost of rehabilitation necessary to meet 
legislative requirements. Changes in estimates are dealt with on a prospective basis as they 
arise. The provision is recognised as a liability, separated into current (estimated costs arising 
within twelve months) and non-current components based on the expected timing of these 
cash flows. 

ANNUAL AND SUSTAINABILITY REPORT 2017f InAnC I A L  R ePoR

t

1 0 9

Provision for demobilisation relates to the Consolidated Entity’s obligation to reimburse 
contractors for the cost of removing equipment from the mine site. Additions to the provision 
are made over the life of the equipment while in use at OZ Minerals to match the expected 
demobilisation costs with the related benefit. 

2017 
$m

2016 
$m

Current

Equipment demobilisation

Other provisions

Total current provisions

Non–current

Equipment demobilisation

Mine rehabilitation

Total non-current provisions

Aggregate

Other provisions

Equipment demobilisation

Mine rehabilitation 

Total provisions

Reconciliation of provisions

Opening carrying amount

Unwind of discount

Provisions utilised

Provisions released

Closing carrying amount

2.9

3.8

6.7

–

29.1

29.1

3.8

2.9

29.1

35.8

6.3

2.0

8.3

2.3

33.7

36.0

2.0

8.6

33.7

44.3

Mine  
rehabilitation  
provision

Equipment  
demobilisation  
provision

33.7

2.8

–

(7.4)

29.1

8.6

0.3

(6.0)

–

2.9

10. Capital expenditure commitments 
The Consolidated Entity has entered into various contracts with suppliers for the construction 
of the Carrapateena Mine and Underground Sustaining Capital works at Prominent Hill. The 
total capital expenditure commitment in relation to these contracts as at 31 December 2017 
was $405 million (2016: $71 million), of which $303 million is expected to be incurred in 
2018 and the balance in 2019.  Where cancellable, the estimated termination cost of the 
commitments as at 31 December 2017 was $41.5 million (2016: $5.0 million).

1 1 0

Contributed Equity

11. Issued capital

298,664,750 shares (2016: 298,664,750 shares)

2017 
$m

2,029.0

2016 
$m

2,029.0

The Company does not have authorised capital or par value in respect of its issued shares. Ordinary shares entitle the holder to participate in 
dividends and the proceeds on winding up of the Company in proportion to the number of shares held. On a show of hands, every holder of 
ordinary shares present at a meeting in person or by proxy is entitled to one vote, and upon a poll each holder is entitled to one vote per share.

Recognition and measurement of issued capital
Ordinary shares are classified as equity. Incremental costs directly attributable to the issue of new shares or options are shown in equity as a 
deduction.

Shares bought and held by Employee Share Plan Trust to meet the Consolidated Entity’s obligation to provide shares to employees in 
accordance with the terms of their employment contracts and employee share plans as and when they may vest, are classified as treasury 
shares and are presented as a deduction from total equity, until the shares are cancelled or reissued.

Shares acquired as part of an on-market share buyback programme are cancelled and presented as a deduction to issued capital, and 
measured at the amount paid 2017: nil (2016:$29.9m).

12. Share-based payments
Total expenses arising from share-based payment transactions recognised during the year as part of employee benefit expenses was $5.3m 
(2016: $6.9m). A description of OZ Minerals’ significant Performance Rights Plans (‘PRP’) and Long Term Incentive Plans (‘LTIP’) are provided below:

Element

Performance rights granted under PRP

Performance rights granted under LTIP

Performance period

2017: 1 July 2017 to 1 July 2018
2016: 1 July 2016 to 1 July 2017
2015: 22 July 2015 to 1 July 2016

Service period

2017: 1 July 2017 to 1 July 2018
2016: 1 July 2016 to 1 July 2017
2015: 22 July 2015 to 1 July 2016

Vesting conditions

Percentage vesting based on individual   
performance against Key Performance Indicators

2017: 1 January 2017 to 31 December 2019 
2016: 1 January 2016 to 31 December 2018
2015: 1 July 2015 to 30 June 2018
2014: 1 July 2014 to 30 June 2017
2013: 20 December 2013 to 19 December 2016

2017: 1 January 2017 to 31 December 2019
2016: 1 January 2016 to 31 December 2018
2015: 1 July 2015 to 30 June 2018
2014: 28 July 2014 to 15 July 2017
2013: 20 December 2013 to 19 December 2016

1. Total Shareholder Return (TSR) 
tSR performance measured  
Comparator Group

75th percentile or greater
Between the 50th and 75th percentile

50th percentile
Less than 50th percentile

2. Absolute Share Price Growth(a) 
oZ Minerals Share Price Growth  
over the Performance Period

Less than 20%
20% or greater

Percentage of vesting

100
Between 50 and 100 vest progressively 
by using a straight-line interpolation
50
Nil

Percentage of vesting

Nil
100

Exercise price

Not applicable – provided at no cost

Not applicable – provided at no cost

(a) The LTI Plan performance vesting conditions for periods 2015 and prior were set only on Total Shareholder Return (TSR). The LTI Plan performance vesting conditions for 2016 and 2017  
   were set on both Total Shareholder Return (TSR) and Absolute Share Price Growth, weighted at 70% and 30% respectively.

ANNUAL AND SUSTAINABILITY REPORT 2017f InAnC I A L  R ePoR

t

1 1 1

Performance rights granted under the PRPs or LTIPs are not entitled to dividends nor have voting rights. All performance rights under current 
performance rights plans are automatically exercised upon vesting which is dependent upon meeting both the service condition and the 
performance condition. The shares on vesting of performance rights rank equally in all respects with previously issued fully paid ordinary 
shares when issued. 

The fair value of services received in return for share-based payments granted during the year is based on the fair value of the performance 
rights granted, measured using a Binomial Approximation Option Valuation Model and Monte-Carlo Simulation Valuation Model for 
Performance Rights Plans and Long-Term Incentive Plans respectively, with the following inputs:

Grant date

Performance rights granted under the LTIP

Fair value at  
grant date  
$

Share price  
at grant date  
$ 

Expected 
volatility  
per cent

Expected  
dividends  
Per cent

Risk-free  
interest rate  
per cent

1 January 2017

  MD & CEO Tranche One (70%)

  MD & CEO Tranche Two (30%)

  Other KMP Tranche One (70%)

  Other KMP Tranche Two (30%)

1 January 2016

  MD & CEO Tranche One (70%)

  MD & CEO Tranche Two (30%)

  Other KMP Tranche One (70%)

  Other KMP Tranche Two (30%)

21 July 2015

Performance rights granted under the PRP

1 July 2017

1 July 2016

21 July 2015

4.6

3.5

6.5

5.6

4.1

3.5

3.7

3.2

2.8

7.3

5.8

3.8

7.2

7.2

9.2

9.2

5.2

5.2

5.2

5.2

3.9

7.5

6.8

3.9

50.0

50.0

50.0

50.0

50.0

50.0

50.0

50.0

45.0

50.0

50.0

45.0

2.7

2.7

2.2

2.2

3.8

3.8

3.8

3.8

2.6

2.6

3.3

2.6

1.7

1.7

2.0

2.0

2.0

2.0

2.0

2.0

2.0

1.8

1.8

2.1

Performance rights 
The movement in the number of performance rights during the year is set out below:

Opening balance

Rights granted

Rights vested and exercised

Rights forfeited

Closing balance

2017 
Number

2,634,996

887,047

(1,114,212)

(401,577)

2,006,254

2016 
Number

2,661,774

1,895,830

(1,000,724)

(921,884)

2,634,996

Recognition and measurement of share-based payments
The fair value of share-based payment transactions measured at grant date are recognised as an employee benefit expense with a 
corresponding increase in equity over the period during which the employees become unconditionally entitled to the instruments. If the 
employee does not meet a non-market condition, such as a service condition or internal KPI’s, any cumulative previously recognised expense 
is reversed.

The fair value of the share-based payment transactions granted are adjusted to reflect market vesting conditions at the time of grant, and are 
not subsequently adjusted. Non-market vesting conditions are included in assumptions about the number of instruments that are expected to 
become exercisable and are updated at each balance sheet date. The impact of the revision to original estimates for non-market conditions, 
if any, is recognised in the Income Statement with a corresponding adjustment to equity. Changes as a result of market conditions are not 
adjusted after the initial grant date. 

1 1 2

Risk Management

13. Financial risk management
OZ Minerals’ Group Treasury Function (‘Group Treasury’) manages the financial risks of the 
Consolidated Entity. Group Treasury identifies, evaluates and manages financial risks in close 
co-operation with OZ Minerals’ operating units. The Board approves principles for overall 
risk management, as well as policies covering specific risk areas, such as market, credit and 
liquidity risk.

This note presents information about the Consolidated Entity’s financial assets and liabilities, 
its exposure to financial risks, as well as its objectives, policies and processes for measuring 
and managing risks. The Consolidated Entity’s activities expose it primarily to the following 
financial risks:

 / Commodity prices

 / Foreign currency exchange rates

 / Credit Risk

 / Liquidity Risk.

The Consolidated Entity holds the following financial instruments as presented on the face  
of the Balance Sheet:

Carried at fair value using level 
1 valuation technique (based 
on share prices quoted on the 
relevant stock exchanges)

Carried at fair value using level 2 
valuation technique (quoted  
market prices of copper, gold and silver 
adjusted for specific settlement terms)

Investments in equity securities

Trade Receivables
Derivative Financial Instruments

Carried at amortised cost

Cash and cash equivalents
Other receivables
Trade payables
Other payables

The carrying value of each of these items approximates fair value.

ACCOUNTING FOR INVESTMENTS 
IN EQUITY SECURITIES

Investments in equity securities
The Consolidated Entity holds investments in equity instruments $18.0m (2016: $18.2m).

Judgement is required in assessing whether 
power over an investee exists where the 
Consolidated Entity holds less than a majority 
of the voting rights. Factors considered 
include rights arising from other contractual 
arrangements, any contractual arrangements 
with other vote holders as well as the 
Consolidated Entity’s voting and potential 
voting rights. 

Despite holding 21.1 per cent of Toro  
Energy Limited’s (‘Toro’) voting rights it  
was determined that OZ Minerals does 
not exert significant influence over Toro 
considering the distribution of voting rights 
amongst Toro’s other shareholders and 
given OZ Minerals does not have board or 
management representation and does not 
participate in the financial or operating 
policies of Toro.

Financial assets measured at fair value include investments in equity instruments which 
are not held for trading. The Consolidated Entity recognises fair value changes in Other 
Comprehensive Income based on an irrevocable election at initial recognition. Amounts 
related to the change in fair value of equity securities are classified in Other Comprehensive 
Income and are never reclassified to the Income Statement at a later date.

Recognition and measurement
Financial assets and liabilities are recognised when the Consolidated Entity becomes party  
to the contractual provisions of an instrument.

Non-derivative financial assets

The Consolidated Entity classifies its financial assets into the following categories: 

 / Financial assets at fair value through Other Comprehensive Income;

 / Financial assets at fair value through profit and loss; and

 / Loans and receivables at amortised cost.

Financial assets measured at amortised cost are recognised initially at fair value plus any 
directly attributable transaction costs. 

Trade receivables, including those containing an embedded derivative, are carried at fair 
value. On adoption of AASB 9, the embedded derivative and the receivables are accounted 
for as one instrument and measured at fair value through profit or loss and recognised in  
the Income Statement as part of ‘Revenue’.

ANNUAL AND SUSTAINABILITY REPORT 2017f InAnC I A L  R ePoR

t

1 1 3

Concentrate sales receivables are recognised in accordance with the recognition and 
measurement criteria disclosed in Note 1. Provisional payments in relation to trade receivables 
are usually due within 30 days from the date of invoice issue, with final settlement usually 
due within 60 days. Other receivables are recognised initially at fair value and subsequently 
measured at amortised cost using the effective interest method. 

The Consolidated Entity derecognises a financial asset or part of it when, and only when,  
the contractual rights to the cash flows from the financial asset expire or the financial asset is 
transferred to another party without retaining control or substantially all risks and rewards of 
the asset. On de-recognition of a financial asset, the difference between the carrying amount 
(measured at the date of de-recognition) and the consideration received (including any new 
asset obtained less any new liability assumed) and any cumulative gain or loss that had been 
recognised in equity is recognised in the Income Statement.

A financial asset measured at amortised cost is assessed at each reporting date as to whether 
there is any objective evidence of impairment as a result of one or more events having an 
impact on the estimated future cash flows of the asset.

An impairment loss in respect of financial assets measured at amortised cost is recognised  
in the Income Statement and is measured as the difference between the asset’s carrying 
amount and the present value of estimated future cash flows discounted at the asset’s 
original effective interest rate. The carrying amount of the asset is reduced through the use  
of an allowance account.

In the event that an impairment loss is reversed, the asset’s carrying amount can not exceed 
what the carrying amount would have been had the impairment not been recognised. The 
amount of the reversal is recognised in the Income Statement.

Non-derivative financial liabilities

All financial liabilities are recognised initially at fair value and net of directly attributable 
transaction costs. Trade and other payables represent liabilities for goods and services 
provided to the Consolidated Entity prior to the end of the financial year which are  
unpaid. The amounts are non-interest-bearing, unsecured and are usually paid within  
30 days of recognition. 

The Consolidated Entity derecognises financial liabilities when its obligations are discharged, 
cancelled or expire. The difference between the carrying amount of the liability derecognised 
and the consideration paid and payable is recognised in the Income Statement. 

Derivative financial instruments
Recognition and measurement

Derivative financial instruments are initially recognised at fair value on the date the derivative 
contract is entered into and are subsequently remeasured to their fair value at each reporting 
date. Changes in the fair value of any derivative instrument are recognised in the Income 
Statement, or Other Comprehensive Income, based the designation and effectiveness of the 
hedge instrument. 

Derivative financial instruments that have been designated as a hedge instrument are 
initially recognised at fair value on the date the derivative contract is entered into and are 
subsequently remeasured to their fair value at each reporting date. Formal designation of 
the hedge and documentation of the relationship between the hedging instrument and the 
hedged item is finalised at the inception of the transaction.

Changes in the fair value of the derivative financial instrument which has been designated 
in a hedge relationship will be recognised in Other Comprehensive Income if the hedging 
relationship remains effective and the underlying hedge item has not been recognised in the 
Income Statement, or recognised in the Income Statement if the hedge relationship is no 
longer effective or the underlying hedged item has been recognised in the Income Statement. 
Any ineffective portion of changes in the fair value of derivative financial instruments 
is recognised immediately in the Income Statement. The amount recognised in Other 
Comprehensive Income is reclassified to the Income Statement in the same period as the 
underlying item is recognised in the Income Statement. 

1 1 4

33,000

28,000

23,000

18,000

13,000

8,000

l

)
z
o
d
o
g
(
d
e
r
e
t
n
e

s
t
c
a
r
t
n
o
c
d
r
a
w
r
o
F

Commodity price risk management and sensitivity analysis
The Consolidated Entity is exposed to commodity price volatility on the sale of metal in 
concentrates such as copper and gold, which are priced on, or benchmarked to, open market 
exchanges. OZ Minerals aims to realise the prevailing forward copper price at the time of shipment 
of concentrates to customers which matches the quotation period of the underlying sale.

Gold derivative contracts

OZ Minerals has entered into gold forward contracts to manage its risk of fluctuations in 
cash flows arising from forecast gold sales in US$ due to movements in gold prices and 
the AUD:USD foreign exchange rates. The Company has designated these gold derivative 
contracts as cash flow hedges. 

The hedged gold sales represent around 54 per cent of forecast sales (gold oz.) in the  
period from 2018 to 2021 and around 60 per cent of the gold contained in stockpiles at  
31 December 2017. This programme is reviewed on a quarterly basis.

The forward contracts have been designated as cash flow hedges under AASB 9 and were 
assessed to be fully effective in managing the underlying risk. Accordingly, a tax-effected fair 
value reduction of $7.2 million (net of tax) was recognised in Other Comprehensive Loss. At 
31 December 2017, contracts for 267,137 ounces of gold were outstanding with an average 
strike price of $1,736 per ounce, as reflected in the chart below:

Forward contracts entered (gold oz)
OZ Minerals average gold forward strike price (A$ per gold oz)

F
o
r
w
a
r
d
r
a
t
e

(

A
U
D
p
e
r
o
z
)

1,850

1,810

1,770

1,730

1,690

1,650

Q3 2018

Q4 2018

Q1 2019

Q2 2019

Q3 2019

Q4 2019

Q1 2020

Q2 2020

Q3 2020

Q4 2020

Q1 2021

Q2 2021

Q3 2021

Q4 2021

 HEDGE EFFE CT IVE N E SS

A hedge relationship which is established at inception is assessed for effectiveness in 
managing the underlying risk. Where a derivative has expired or is assessed to be ineffective, 
all future fair value changes will be recognised in the Income Statement. Determination 
of effectiveness requires the exercise of significant judgement regarding mine plans, sales 
forecasts and recoverable metal contained in mineral resources and reserves.

ANNUAL AND SUSTAINABILITY REPORT 2017 
 
 
 
 
 
 
 
f InAnC I A L  R ePoR

t

1 1 5

Copper derivative contracts

The consolidated entity manages the exposure to volatility in copper price on completed sales 
from contractual Quotation Pricing adjustments, by entering into copper derivative contracts 
at the time of concentrate shipments which fix the forward price at the time of shipment. 
These derivative contracts are designated as hedges and are recognised within the Income 
Statement as part of ‘Revenue’. As a result of these hedges, the impact of changes in copper 
price after the date of sale on the Income Statement is expected to be negligible.

Commodity price sensitivity analysis

Due to the copper price hedging activity, if copper prices were to vary, the expected impact 
on the Income Statement would be negligible. As such, the below analysis focuses on 
the impact of movements in gold prices, as variations in silver prices have been deemed 
immaterial for the purpose of this analysis. In accordance with Australian Accounting 
Standards, the sensitivity analysis is on all financial assets and liabilities deemed material to 
the Consolidated Entity.

+10% movement in Gold prices

-10% movement in Gold prices

Impact on Income 
Statement 
net of tax

Impact on Other 
Comprehensive Income 
net of tax

Impact on Income 
Statement 
net of tax

Impact on Other 
Comprehensive Income 
net of tax

1.6

–

1.6

1.2

–

1.2

–

(0.4)

(0.4)

–

(0.8)

(0.8)

(1.6)

–

(1.6)

(1.2)

–

(1.2)

–

0.4

0.4

–

0.8

0.8

A 10% movement in gold prices, which is based on reasonably possible changes over a 
financial year and reflects the variability management applies in forecasting sensitivity, results 
in a $1.6 million after tax impact on the Income Statement on the trade receivables balance 
of $121.9 million (2016: $69.4 million) and $0.4 million after tax impact on the derivative 
financial liability of $16.3 million (2016: $11.4 million). In accordance with accounting 
standards, the impact has been calculated on the outstanding balance that is subject to 
commodity price risk and does not include the impact of the movement in commodity prices 
on the total revenue for the year.

2017

Trade receivables

Gold hedges (FEC’s)

Total

2016

Trade receivables

Gold hedges (FEC’s)

Total

1 1 6

Foreign currency exchange risk management and sensitivity analysis
The Consolidated Entity is exposed to foreign currency risk arising from assets and liabilities 
that are held in currencies other than the Australian dollar. 

All OZ Minerals operations have a functional currency of Australian dollars. An entity’s 
functional currency is the currency of the primary economic environment in which the entity 
operates. Determination of an entity’s functional currency requires management’s judgement 
when considering a number of factors including the currency that mainly influences revenue, 
costs of production, and competitive forces and regulations which impact revenue. In 
addition, consideration must be given to the currency in which financing and operating 
activities are undertaken.

Foreign currency transactions are translated into the functional currency using exchange rates 
prevailing at the date of the transaction. Foreign exchange gains and losses resulting from 
the settlement of such transactions and from the translation at year end exchange rates of 
financial assets and liabilities denominated in foreign currencies are recognised in the Income 
Statement except for gold derivative contracts which are recognised in Other Comprehensive 
Income. The carrying amount of the Consolidated Entity’s financial assets and financial 
liabilities by its currency risk exposure at the reporting date is disclosed below. 

2017

Cash and cash equivalents

Derivative financial instruments

Trade receivables 

Trade payables

Total

2016

Cash and cash equivalents

Derivative financial instruments

Trade receivables 

Trade payables

Total

Denominated in US$ 
presented in A$m

Other currencies 
presented in A$m

42.6

(16.3)

119.7

(0.2)

145.8

64.1

(11.1)

69.4

(1.3)

121.1

–

–

–

–

–

–

–

–

(0.1)

(0.1)

Total 
A$m

42.6

(16.3)

119.7

(0.2)

145.8

64.1

(11.1)

69.4

(1.4)

121.0

The US dollar exchange rates during the year were as follows:

Average rate

31 December spot rate

2017

2016

2017

2016

A$:US$

0.7669

0.7441

0.7794 

0.7219

At reporting date, if the foreign currency exchange rates strengthened/(weakened) 
against the functional currency by 5 per cent and all other variables were held constant, 
the Consolidated Entity’s after tax profit would have changed by $5.7 million, and Other 
Comprehensive Income would have changed by $0.6 million (2016: after tax profit  
$4.7 million, and Other Comprehensive Income $0.6 million).

The sensitivity analysis includes only outstanding foreign currency denominated monetary 
items at the reporting date and adjusts their translation for a 5 per cent change in the  
foreign currency rate. 

ANNUAL AND SUSTAINABILITY REPORT 2017f InAnC I A L  R ePoR

t

1 1 7

Interest rate risk management and sensitivity analysis
The Consolidated Entity does not have any borrowings at 31 December 2017 and therefore is 
not exposed to interest rate risk on borrowings. The Consolidated Entity carries term deposits 
with fixed interest rates. The effect of a change in interest rates at balance date would not 
have a significant impact on the after tax profit as substantially all cash deposits have fixed 
interest rate terms.

Credit risk management
Credit risk refers to the risk that any counterparty will default on its contractual obligations 
resulting in financial loss to the Consolidated Entity. Counterparty credit risk arises through 
sales of metal in concentrate on normal terms of trade, through deposits of cash, finance 
lease receivables and derivative financial instruments. 

At the reporting date, the carrying amount of financial assets in the balance sheet represents 
the maximum credit exposure on cash and cash equivalents, trade receivables, other 
receivables, derivative assets and lease receivables. 

The credit risk on cash and cash equivalents is managed by restricting financial transactions 
to banks which are assigned S&P equivalent of A-1 short term credit ratings by international 
credit rating agencies and limiting the amount of funds that can be invested with a single 
counterparty in accordance with OZ Minerals’ Credit Risk Management Policy. 

Credit risk in trade receivables is managed by undertaking regular risk assessment and 
reviewing credit limits of customers. As there are a relatively small number of transactions, 
they are closely monitored to ensure risk of default is kept to an acceptably low level. Sales 
contracts require a provisional payment of at least 90 per cent of the estimated value of each 
sale either promptly after vessel loading or upon the vessel arriving at the discharge port. 
Where applicable, sales are covered by letter of credit arrangements with approved financial 
institutions.

The maximum exposure to credit risk for trade receivables at the reporting date by geographic 
region of the customer was:

Asia

Australia

Total

2017 
$m

82.9

39.0

121.9

2016 
$m

46.7

22.7

69.4

Major customers who individually accounted for more than 10 per cent of total revenue 
contributed approximately 75 per cent of total revenue (2016: 69 per cent). These customers 
also represent 89 per cent of the trade receivables balance as at 31 December 2017 (2016: 
96 per cent). There have been no instances of customer default during 2017 and there are 
|no significant receivables which are past due at the reporting date. 

Credit risk on derivative financial instruments is managed by restricting transactions only with 
counterparties who are at least Category Two members of the LME, or which are assigned 
S&P equivalent of A-1 short term credit ratings by international credit rating agencies. 

1 1 8

Liquidity risk management
Liquidity risk is the risk of encountering difficulty in meeting obligations associated with 
financial liabilities. OZ Minerals manages liquidity risk by conducting regular reviews of the 
timing of cash outflows and the maturity profiles of term deposits in order to ensure sufficient 
funds are available to meet its obligations.

The following table reflects all contractual repayments from recognised financial assets and 
liabilities at the reporting date, including derivative financial instruments. For derivative 
financial instruments, the market value is presented, whereas for the other obligations the 
respective undiscounted cash flows for the respective upcoming financial years are presented.

Less than  
1 year

1 – 2 years

2 – 5 years

Greater than 
5 years

2017

Cash and cash equivalents

Trade receivables

Other receivables

Lease receivable

Trade payables

Derivative financial liabilities

Total

2016

Cash and cash equivalents

Trade receivables

Other receivables

Lease Receivable

Derivative financial assets

Trade payables

Derivative financial liabilities

Total

729.4

121.9

10.8

19.6

(94.1)

(11.6)

776.0

655.7

69.4

7.8

27.5

–

(74.4)

(11.1)

674.9

–

–

–

–

–

–

–

–

–

–

–

0.6

–

–

0.6

–

–

–

–

–

(4.7)

(4.7)

–

–

–

–

4.5

–

–

4.5

–

–

–

–

–

–

–

–

–

–

–

–

–

–

Total

729.4

121.9

10.8

19.6

(94.1)

(16.3)

771.3

655.7

69.4

7.8

27.5

5.1

(74.4)

(11.1)

680.0

The Consolidated Entity had access to the following borrowing facilities which were undrawn at the end of the year. 

Expires on 

Security

Revolving facility 

November 2019

Unsecured

2017 
A$m(a)

100.0

2016 
A$m

–

2017 
US$m

–

2016 
US$m

100.0

(a)  The standby credit facility of A$100m was renegotiated to a three year committed facility of AU$100m with an uncommitted accordion facility for an additional AU$300m which remains subject to 

financial institution approval.

ANNUAL AND SUSTAINABILITY REPORT 2017 CONTINGE NCIES

By their nature, contingencies will only be 
resolved when one or more uncertain future 
events occur or fail to occur. Determination 
of contingent liabilities disclosed in the 
Financial Statements requires the exercise 
of significant judgement regarding the 
outcome of future events. In the event of 
an unfavourable outcome of a number of 
matters listed below the financial results 
of OZ Minerals in future periods may be 
impacted unfavourably.

f InAnC I A L  R ePoR

t

1 1 9

14. Contingencies
Bank guarantees

OZ Minerals Group Treasury Pty Ltd has provided certain bank guarantees to third parties, 
primarily associated with the terms of mining leases, exploration licences and office leases, 
in respect of which the relevant entity is obliged to indemnify the bank if the guarantee is 
called upon. At the end of the financial year, no claims have been made under any of these 
guarantees. The amount of some of these guarantees may vary from time to time depending 
upon the requirements of the recipient. These guarantees are backed by deposits which 
amounted to $52.9 million as at 31 December 2017 (31 December 2016: $34.6 million). 
Presently, all guarantees are voluntarily cash backed by deposits in order to reduce the  
bank fees payable, however, should the need arise all funds can be withdrawn as and  
when required.

Deeds of indemnity

The Consolidated Entity has granted indemnities under Deeds of Indemnity with current and 
former Executive and Non-executive Directors, former officers, the former General Counsel – 
Special Projects, the former Group Treasurer and each employee who was a director or officer 
of a controlled entity of the Consolidated Entity, or an associate of the Consolidated Entity, in 
conformity with Rule 10.2 of the OZ Minerals Limited Constitution. 

Each Deed of Indemnity indemnifies the relevant director, officer or employee to the fullest 
extent permitted by law for liabilities incurred while acting as an officer of OZ Minerals, its 
related bodies corporate and any associated entity, where such an office is or was held at 
the request of the Company. Under these indemnities, the Company meets the legal costs 
incurred by Company officers in responding to investigations by regulators and may advance 
funds to meet defence costs in litigation, to the extent permitted by the Corporations Act 
2001(Cth).

Warranties and indemnities

The Company has given certain warranties and indemnities to the purchasers of assets and 
businesses that have been sold. Warranties have been given in relation to various matters 
including the sale of assets, taxes and information. Indemnities have also been given by the 
Consolidated Entity in relation to matters including compliance with law, environmental 
claims, a failure to transfer or deliver all assets and payment of taxes.

Former Cambodian operations 

The Australian Federal Police (AFP) advised OZ Minerals in September 2014 that it was 
conducting an investigation of OZ Minerals’ 2009 acquisition of the remaining equity holding 
in the Okvau exploration joint venture in Cambodia in relation to foreign bribery claims. Since 
that time, the Company has been advised by the AFP that the scope of the AFP’s investigation 
has been extended to OZ Minerals’ former Cambodian operations generally. OZ Minerals 
understands that the AFP is continuing its investigation and OZ Minerals is continuing to fully 
cooperate with the AFP. OZ Minerals has concluded that it is not probable that a present 
obligation exists and, accordingly, no provision has been recognised in the balance sheet at 
31 December 2017.

Other

OZ Minerals Limited and its controlled entities are defendants from time to time in other legal 
proceedings or disputes, arising from the conduct of their business. OZ Minerals does not 
consider that the outcome of any of these proceedings or disputes is likely to have a material 
effect on the Company’s or the Consolidated Entity’s financial position.

1 2 0

Group structure  
and other information

15. Parent entity disclosures
As at, and throughout the financial year ended 31 December 2017, the parent entity of the 
Consolidated Entity was OZ Minerals Limited.

Provision for non-recovery of loan to subsidiary

Net other expense

Net profit/(loss) for the year

Other comprehensive income/(loss)

Total comprehensive income/(loss) 

Financial position of the parent entity

Current assets

Non-current assets

Total assets

Liabilities

Non-current liabilities

Total liabilities

Net assets

Equity

Issued capital

Treasury shares

Retained earnings

Accumulated losses

Total equity

2017 
$m

8.5

(8.7)

(0.2)

0.2

–

2.9

2,125.9

2,128.8

109.5

0.4

109.9

2,018.9

2,029.0

(1.4)

239.8

(248.5)

2,018.9

2016 
$m

(1.0)

(29.0)

(30.0)

(12.2)

(42.2)

2.7

2,160.5

2,163.2

79.6

0.4

80.0

2,083.2

2,029.0

(2.1)

304.8

(248.5)

2,083.2

OZ Minerals Limited is able to manage its net current liability position by its ability to control 
the timing of dividends from its subsidiaries. 

Refer to Note 14 for Contingencies and Note 16 for Deed of Cross Guarantee disclosures. The 
parent entity’s capital expenditure commitment as at 31 December 2017 was nil (2016: nil).

Franking account details

Franking account balance at beginning of year

Franking credits from income tax paid during the year

Franking debits from income tax refund received

Franking debits from franked dividend paid during the year

Franking account balance at end of year

2017 
$m

0.9

82.7

(3.5)

(25.6)

54.5

2016 
$m

0.9

–

_

–

0.9

ANNUAL AND SUSTAINABILITY REPORT 2017f InAnC I A L  R ePoR

t

1 2 1

Basis of consolidation
Investments in subsidiaries

Subsidiaries are those entities over which the Consolidated Entity is capable of exerting control. The Consolidated 
Entity controls an entity when it is exposed to, or has rights to, variable returns from its involvement with the entity 
and has the ability to affect those returns through its power over the entity. Where the Consolidated Entity holds less 
than a majority of the voting rights, other relevant factors are considered in assessing whether power over the entity 
exists. Factors considered include rights arising from other contractual arrangements, any contractual arrangements 
with other vote holders as well as the Consolidated Entity’s voting and potential voting rights.

The Consolidated Entity reassesses whether it controls an entity if facts and circumstances indicate that there has been 
a change in one of the factors which indicate control. Subsidiaries are consolidated from the date on which control 
is assessed to exist until the date that control ceases. The purchase method of accounting is used to account for the 
acquisition of subsidiaries by the Consolidated Entity.

Intercompany transactions, balances and unrealised gains and losses on transactions between companies controlled 
by the Consolidated Entity are eliminated on consolidation. 

Subsidiaries
The wholly owned controlled entities of OZ Minerals Limited are listed below: 

Entity

Carrapateena Pty Ltd

CTP Assets Pty Ltd

CTP Operations Pty Ltd

Minotaur Resources Holdings Pty Ltd

OZ Exploration Pty Ltd

OZ Minerals Equity Pty Ltd

OZ Minerals Group Treasury Pty Ltd

OZ Minerals Holdings Limited

OZ Minerals Insurance Pte Ltd

OZ Minerals International (Holdings) Pty Ltd

OZ Minerals Investments Pty Ltd

OZ Minerals Jamaica Limited

OZ Minerals Prominent Hill Operations Pty Ltd

OZ Minerals Prominent Hill Pty Ltd

OZ Minerals Zinifex Holdings Pty Ltd

OZ Minerals Carrapateena Pty Ltd

OZ Exploration Chile Limitada

OZM Carrapateena Pty Ltd

OZ Exploration (USA) LLC

ZRUS Holdings Pty Ltd

Country of incorporation

Australia

Australia

Australia

Australia

Australia

Australia

Australia

Australia

Singapore

Australia

Australia

Jamaica

Australia

Australia

Australia

Australia

Chile

Australia

USA

Australia

1 2 2

16. Deed of cross guarantee
The Company and all its Australian domiciled subsidiaries listed in Note 15 to the 
Consolidated Financial Statements, except for OZ Minerals Equity Pty Ltd, OZ Minerals 
International (Holdings) Pty Ltd, and ZRUS Holdings Pty Ltd are party to a Deed of Cross 
Guarantee (‘Deed’). 

The effect of the Deed is that the Company guarantees to each creditor payment in full of 
any debt in the event of winding up of any of the subsidiaries under certain provisions of 
the Corporations Act 2001. If a winding up occurs under other provisions of the Act, the 
Company will only be liable in the event that after six months any creditor has not been paid 
in full. The subsidiaries have also given similar guarantees in the event that the Company is 
wound up.

Set out below is the Consolidated Statement of Comprehensive Income and Consolidated 
Balance Sheet of the entities within the Deed.

Consolidated Statement of Comprehensive Income  
of the entities within the Deed of Cross Guarantee

Revenue from sale of concentrates 

Other income 

Net foreign exchange (losses)/gains

Changes in inventories of ore and concentrate

Consumables, concentrate purchases and other direct costs

Employee benefit expenses

Exploration and evaluation expenses

Freight expenses

Royalties expense

Depreciation expense

Legal costs associated with Class Action

Other expenses

Profit before net financing income  
and income tax from continuing operations

Financing income

Financing expenses

Net financing income

Profit before income tax

Income tax expense

Profit for the year

Other comprehensive loss

Total comprehensive profit for the year

2017 
$m

1,023.1

4.7

(5.8)

190.2

(332.3)

(56.2)

(21.1)

(63.6)

(52.9)

(323.5)

–

(41.1)

321.5

12.5

(3.8)

8.7

330.2

(98.4)

231.8

(7.4)

224.4

2016 
$m

822.9

6.3

2.6

227.8

(313.7)

(60.4)

(25.1)

(52.9)

(42.2)

(361.5)

(37.9)

(34.9)

131.0

13.8

(4.8)

9.0

140.0

(28.4)

111.6

(6.7)

104.9

ANNUAL AND SUSTAINABILITY REPORT 2017f InAnC I A L  R ePoR

t

1 2 3

Consolidated Balance Sheet of the entities  
within the Deed of Cross Guarantee

Current assets

Cash and cash equivalents

Trade receivables

Lease receivable

Other receivables

Inventories

Prepayments

Assets held for sale

Total current assets

Non-current assets

Inventories

Investments in equity securities

Derivative financial instruments

Exploration assets - Carrapateena

Lease receivable

Property, plant and equipment

Investment in subsidiaries which are not party to the Deed

Total non-current assets

Total assets

Current liabilities

Trade payables and accruals

Other payables

Current tax liabilities

Employee benefits

Provisions

Derivative financial instruments

Total current liabilities

Non-current liabilities

Deferred tax liabilities

Employee benefits

Provisions

Derivative financial instruments

Total non-current liabilities

Total liabilities

Net assets

Equity

Issued capital

Cash flow hedge reserve

Retained earnings

Treasury shares

Total equity 

2017 
$m

722.5

121.9

19.6

10.8

262.5

3.8

–

1,141.1

484.4

18.0

–

–

–

1,175.8

3.0

1,681.2

2,822.3

93.6

3.5

101.1

10

6.7

11.6

226.5

47.3

1.8

29.1

4.7

82.8

309.5

2,512.9

2,029.0

(3.6)

488.9

(1.4)

2,512.9

2016 
$m

648.0

69.4

–

6.6

197.1

4.9

9.4

935.4

360.0

18.2

5.1

284.9

27.5

990.6

3.0

1,689.3

2,624.7

72.6

3.0

69.0

9.0

8.3

11.1

173.0

63.5

2.0

36.0

-

101.5

274.5

2,350.2

2,029.0

3.6

319.7

(2.1)

2,350.2

1 2 4

17. Key management personnel
Key management personnel remuneration 

Key management personnel (‘KMP’) are accountable for planning, directing and controlling 
the affairs of the Company and its controlled entities. The KMP remuneration for the 
Consolidated Entity was as follows:

Short-term employee benefits 

4,135,136

4,737,886

2017 
$

2016 
$

Other long term benefits

Post-employment benefits

Termination benefits

Share-based payments

Total

13,182

128,230

149,643

(48,812)

4,377,379

22,540

168,272

–

480,542

5,409,240

Information regarding individual directors’ and executives’ compensation and some equity instrument disclosures  
as required by Corporations Regulation 2M.3.03 is provided in the Remuneration Report. 

Recognition and measurement of wages and salaries and short term  
employee benefits 

Liabilities for wages and salaries, including non-monetary benefits and annual leave  
expected to be settled within twelve months of the reporting date are recognised in the 
provision for employee benefits in respect of employees’ services up to the reporting date  
and are measured at the amounts expected to be paid, inclusive of on costs, when the 
liabilities are settled. 

Recognition and measurement of other long term employee benefits

Long term employee benefits include annual leave liabilities which are expected to be settled 
in the period greater than twelve months from balance date and long service leave liabilities. 
Other long term benefits are recognised in the provision for employee benefits and measured 
as the present value of expected future payments to be made in respect of services provided 
by employees up to the reporting date using the projected unit credit method. Consideration 
is given to the expected future wage and salary levels, experience of employee departures 
and periods of service. Expected future payments are discounted using market yields at the 
reporting date on national government bonds with terms to maturity and currency that 
match, as closely as possible, the estimated future cash outflows.

Transactions with related parties

A number of KMP, or their related parties, hold positions in other entities that may result in 
them having control or significant influence over the financial or operating policies of those 
entities. Where the Consolidated Entity transacts with the KMP and their related parties, 
the terms and conditions of these transactions are no more favourable than those available, 
or which might reasonably be expected to be available, on similar transactions to non-KMP 
related entities on an arm’s length basis. 

ANNUAL AND SUSTAINABILITY REPORT 2017f InAnC I A L  R ePoR

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18. Remuneration of auditors

Audit services provided by KPMG
Audit and review of financial reports and other audit work under the Corporations Act 2001, including audit of subsidiary financial statements

2017 
$

2016 
$

KPMG Australia

Overseas KPMG firms

Total fee for audit services provided by KPMG

Other assurance services provided by KPMG including Sustainability work

Total audit and assurance fee 

Tax compliance and other tax advisory services

Other services provided by KPMG

Total non-audit fee

Total fees

425,000

23,549

448,549

50,000

498,549

180,000

44,328

224,328

722,877

439,722

34,990

474,712

71,900

546,612

160,124

5,125

165,249

711,861

19. New accounting standards
(i)   Changes in accounting policies and mandatory standards adopted during the year

The accounting policies applied by the Consolidated Entity in these Consolidated Financial Statements are consistent with those applied  
by the Consolidated Entity in its Annual Report for the year ended 31 December 2016. The Consolidated Entity has adopted all of the 
new, revised or amending standards that are mandatory. The adoption of these new and revised Australian Accounting Standards has not 
had a significant impact on the Consolidated Entity’s accounting policies or the amounts reported during the year.

(ii)  Early adoption of Standards

The Consolidated Entity has not early adopted any standards in the Annual Report during the year ended 31 December 2017.  
During 2016 the Consolidated Entity elected to early adopt AASB9 Financial Instruments.

(iii) Issued Standards and pronouncements not early adopted

At the date of authorisation of the Financial Statements the following has been issued but were not yet effective. 

AASB 15 Revenue from Contracts with Customers

AASB 15 changes the timing (and in some case, the quantum) of revenue recognised from customers. Currently revenue for domestic sales 
is recognised when the concentrates are delivered to the customers’ premises, which is the point when the customer takes over the risk and 
rewards of ownership transfer. The Consolidated Entity’s assessment indicates that under AASB 15, revenue will continued to be recognised 
on the same basis when the customer obtains control of the concentrates. 

Revenue for export sales is currently recognised when shipments of concentrates are loaded on to the vessel as the risk and reward of 
ownership is transferred to the customer at that point. The Consolidated Entity’s assessment under AASB 15 indicates that the export 
contracts are made up of two performance obligations. The first obligation to deliver the concentrates to the port of shipment and the 
second obligation is to organise shipping of the concentrate, which will be satisfied when concentrates are delivered to the destination port. 
The Consolidated Entity assessed that revenue relating to the first obligation of delivery of the concentrates to the port of shipping will be 
recognised at that point and revenue relating to the shipping obligation will be recognised in future periods upon delivery of concentrates.  
On the basis of the above the new standard is not expected to materially impact the Consolidated Entity’s net profit after tax. The 
Consolidated Entity will adopt this standard effective 1 January 2018.

AASB 16 Leases

AASB16 eliminates the distinction between operating and finance leases and brings all leases (other than short term and low value leases) 
onto the balance sheet. The standard does not apply mandatorily before 1 January 2019. The Consolidated Entity is currently undertaking  
an analysis of transition options and the on-going financial reporting impact.

1 2 6

Directors’ 
declaration

1. 

In the opinion of the directors of OZ Minerals Limited (the Company):

(a)  the Consolidated Financial Statements and notes set out on pages 93 to 125 

and the remuneration disclosures that are contained in the Remuneration Report 
on pages 40 to 55, are in accordance with the Corporations Act 2001, and:

(i)  give a true and fair view of the financial position of the Consolidated Entity as 
at 31 December 2017 and of its performance for the year ended on that date; 
and

(ii)  comply with Australian Accounting Standards and the Corporations  

Regulations 2001;

(b)  the directors draw attention to page 97 of the Consolidated Financial Statements, 
which includes a statement of compliance with international financial reporting 
standards. 

(c)  there are reasonable grounds to believe that the Company will be able to pay its 

debts as and when they fall due and payable.

2.  There are reasonable grounds to believe that the Company, and the consolidated entities 
identified in Note 16, will be able to meet any obligations or liabilities to which they 
are, or may become subject to, by virtue of the Deed of Cross Guarantee between the 
Company and those consolidated entities pursuant to ASIC Class Order 2016/785.

3.  The directors have been given the declarations required by Section 295A of the 

Corporations Act 2001 from the Chief Executive Officer and Chief Financial Officer  
for the financial year ended 31 December 2017.

Signed in accordance with a resolution of the directors.

Rebecca McGrath 

Chairman

Adelaide

22 February 2018 

Andrew Cole

Managing Director  
and Chief Executive Officer

Adelaide

22 February 2018

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Independent 
Auditor’s Report

Report on the audit of the Financial Report 
To the shareholders of OZ Minerals Limited 

Opinion
We have audited the Financial Report of the Consolidated Entity.

In our opinion, the accompanying Financial Report of OZ Minerals Limited is in accordance 
with the Corporations Act 2001, including

 / giving a true and fair view of the Consolidated Entity’s financial position as at  

31 December 2017 and of its financial performance for the year ended on that date; and

 / complying with Australian Accounting Standards and the Corporations Regulations 2001.

The Financial Report comprises the:

 / Consolidated balance sheet as at 31 December 2017;

 / Consolidated statement of comprehensive income, consolidated statement of changes  

in equity, and consolidated statement of cash flows for the year then ended;

 / Notes including summary of significant accounting policies; and

 / Directors’ Declaration.

The Consolidated Entity consists of OZ Minerals Limited (the Company) and the entities  
it controlled at the year end and from time to time during the financial year.

Basis for opinion
We conducted our audit in accordance with Australian Auditing Standards. We believe  
that the audit evidence we have obtained is sufficient and appropriate to provide a basis  
for our opinion.

Our responsibilities under those standards are further described in the Auditor’s 
responsibilities for the audit of the Financial Report section of our report.

We are independent of the Consolidated Entity in accordance with the Corporations Act 
2001 and the relevant ethical requirements of the Accounting Professional and Ethical 
Standards Board’s APES 110 Code of Ethics for Professional Accountants (the Code).  
We have fulfilled our other ethical responsibilities in accordance with the Code.

Key audit matters
The Key Audit Matters we identified are:

 / Carrying value of Prominent Hill Property, Plant and Equipment (PP&E)

 / Valuation of Low Grade Gold Ore Stockpiles

Key Audit Matters are those matters that, in our professional judgment, were of most 
significance in our audit of the Financial Report of the current period.

These matters were addressed in the context of our audit of the Financial Report as a  
whole, and in forming our opinion thereon, and we do not provide a separate opinion  
on these matters.

© 2018 KPMG, an Australian partnership and a member firm of the KPMG network of independent member firms affiliated with 
KPMG International Cooperative (“KPMG International”), a Swiss entity. All rights reserved. The KPMG name and logo are registered 
trademarks or trademarks of KPMG International. Liability limited by a scheme approved under Professional Standards Legislation.

 
1 2 8

Carrying value of Prominent Hill PP&E (contained within total PP&E $1,175.8m)

Refer to Note 7 to the Financial Report
The key audit matter

The carrying value of Prominent Hill PP&E is a key audit matter due to the audit effort 
involved in assessing the Group’s determination that no impairment indicators existed 
 in relation to the Prominent Hill PP&E.
Important factors included:

 / The significance of this determination and its effect on the extent and granularity of 
the Group’s assessment of the carrying value. The presence of impairment indicators 
would necessitate a detailed analysis by the Group of the recoverable amount of 
Prominent Hill PP&E. In light of the quantum of the Prominent Hill PP&E (being 25% 
of total assets), the presence of impairment indicators would impact the scope of 
our work.

 / The historic sensitivity of the Group’s modelling to external and internal conditions. 
This heightens the likelihood of small changes in conditions from previous years 
leading to indicators of impairment.

In assessing the presence of impairment indicators, we particularly focused on the 
external and internal conditions listed below. We assessed each condition against the 
equivalent in the previous impairment assessment and the Group’s mine plan (where 
applicable), for inconsistent or negative trends, which may indicate impairment of the 
carrying value.

 / Commodity price and foreign exchange rate forecasts.

 / Prominent Hill operational plans and budgets, in particular:

 > Metal production levels planned: these are dependent on extraction of ore from 
the mine, estimated grades of metal in the ore body, and ability to recover metal 
contained in the ore extracted.

 > Capital expenditure and operating costs: such as underground mining costs, 
processing costs, freight and TCRC (treatment costs and refining charges).

 / Discount rate based on market evidence of comparable organisations within the 

same industry.

 / The valuation multiples used by the Group to ascribe value to the ore bodies 

known to exist at Prominent Hill but have not been included in the Group’s primary 
impairment indicator assessment.

We involved senior audit team members, including KPMG valuations specialists,  
with experience in the industry for this key audit matter.

How the matter was addressed in our audit

Involving our valuations specialists, our procedures included:

 / We tested the controls for the Group’s compilation of their operational plans and 

budgets for Prominent Hill PP&E into their primary impairment indicator assessment, 
including board authorisation of key inputs. In assessing the due process involved 
into its compilation, we critically evaluated the following key forecast inputs for 
accuracy:
 > Metal production levels against historical production levels and the capacity to 

achieve forecast production;

 > Capital expenditure against historical capital expenditure and for consistency 

with the planned activities that may require capital; and

 > Operating costs, against historical amounts and for consistency with the mine 

plan.

 / In assessing for negative trends in the forecast cash flows of Prominent Hill PP&E, we 
challenged the Group’s key internal inputs from above against those in the previous 
impairment assessment. Specific to Prominent Hill’s future production levels we used 
our knowledge of previous production levels and evaluated against:
 > Board approved current business model.
 > The Mineral Resources and Ore Reserves Statements prepared by the Group in 

accordance with Joint Ore Reserves Committee (JORC) requirements for ore to be 
mined and processed. These requirements govern evaluation and reporting of the 
existence of mineral resources.

 > Findings from external specialists, engaged by the Group in prior years that 

remain relevant, to assess the accuracy of JORC Resource and Reserve estimates 
for information which may indicate that estimates of ore to be mined and 
processed are not achievable.

 / We assessed the relevant discount rates sourced from comparable market rates for 

negative trends against the previous impairment assessment;

 / We compared forecast commodity prices and foreign exchange rates applicable to 
the Group’s businesses, via published analyst and broker data, for negative trends 
against the previous impairment assessment;

 / In assessing for negative trends in the value ascribed to the ore bodies known to 
exist at Prominent Hill but have not been included in the impairment indicator 
assessment calculation, we compared the valuation multiples used to market data  
for comparable transactions and prior period valuation multiples.

ANNUAL AND SUSTAINABILITY REPORT 2017InDePe nDe n t AU D ItoR ' S   RePoR

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Valuation of Low Grade Gold Ore Stockpiles ($163.4 million)

Refer to Note 5 to the Financial Report
The key audit matter

Significant judgment is required to be exercised by the Group in their assessment of 
the value of low grade gold ore which will be combined with copper ore to be mined 
in the future to produce concentrate. The valuation of low grade gold ore stockpiles 
is a key audit matter because significant judgment is required by us in evaluating the 
Group’s assessment of the value. The Group’s assessment is based on a model which 
estimates future revenue expected to be derived from low grade gold ore contained 
in existing ore stockpiles, less selling costs and further processing costs to convert ore 
into concentrate. We particularly focus on those judgments listed below which impact 
the valuation model:

How the matter was addressed in our audit

Our procedures included:

 / We tested the controls relevant to:

 > the Group’s valuation of low grade gold ore stockpiles, including board 

authorisation of key inputs to the assessment such as commodity prices, foreign 
exchange rates, and processing costs; and,

 > the Group’s process for recording and monitoring volumes and grades of 
stockpiled low grade gold ore such as the use of quantity surveyors and 
management review and approval of grades.

 / Future metal production levels which are dependent on the volume and grade of 

 / We assessed the methodology applied by the Group in determining the value of 

existing low grade gold ore stockpiles.

 / Future processing costs of low grade gold ore, and related selling costs.

 / Future commodity prices and foreign exchange rates expected to prevail when the 

concentrate containing gold from existing low grade gold ore stockpiles is processed 
and sold.

 / The timing of production which depends on the available capacity of the mill.
In assessing this key audit matter, we used team members who understand the 
Group’s business, industry and the relevant economic environment.

low grade gold ore stockpiles against the requirements of Accounting Standards for 
determining the net realisable value of inventories which are yet to be converted into 
finished goods.

 / We compared the results of quantity surveyors to volume of low grade gold ore 

stockpiles.

 / We compared grades of stockpiled low grade gold ore to stockpiled low grade 

gold ore in previous periods, and against grades reported in the JORC Ore Reserves 
Statement.

 / We evaluated the Group’s key assumptions used to determine the value of low grade 

gold ore stockpiles by:

 > comparing forecast processing costs of low grade gold ore against historical 
actual processing costs to assess forecast processing cost assumptions;

 > assessing forecast selling costs by comparing to trends from evaluation of 

existing customer sales contracts;

 > assessing commodity prices and foreign exchange rates applied by the Group 

against published analyst and broker data about commodity prices and foreign 
exchange rates expected to prevail in the future; and,

 > checking that low grade gold ore was only forecast to be processed when there 

was capacity in the mill.

1 3 0

Other Information
Other Information is financial and non-
financial information in OZ Minerals Limited’s 
annual reporting which is provided in 
addition to the Financial Report and the 
Auditor’s Report. This includes the 2017 
Snapshot, Message from the Chairman 
and CEO, OZ Minerals’ Company Strategy, 
Prominent Hill Overview, Carrapateena 
Overview, West Musgrave Overview, 
Exploration and Growth Overview, 
Governance Overview, Results for 
Announcement to the Market, Directors’ 
Report including the Operating and  
Financial Review, Remuneration Overview 
and Report, Sustainability Report, Reserves 
and Resources 2017, Letter from the 
Chairman of the Human Resources and 
Remuneration Committee and Shareholder 
Information. The Directors are responsible  
for the Other Information.

Our opinion on the Financial Report does 
not cover the Other Information and, 
accordingly, we do not and will not express 
an audit opinion or any form of assurance 
conclusion thereon, with the exception of 
the Remuneration Report and our related 
assurance opinion.

In connection with our audit of the Financial 
Report, our responsibility is to read the 
Other Information. In doing so, we consider 
whether the Other Information is materially 
inconsistent with the Financial Report or 
our knowledge obtained in the audit, or 
otherwise appears to be materially misstated.

We are required to report if we conclude that 
there is a material misstatement of this Other 
Information, and based on the work we have 
performed on the Other Information that we 
obtained prior to the date of this Auditor’s 
Report we have nothing to report.

Report on the  
Remuneration Report

Opinion
In our opinion, the Remuneration Report  
of OZ Minerals Limited for the year ended  
31 December 2017, complies with Section 
300A of the Corporations Act 2001.

Directors’ responsibilities
The Directors of the Company are 
responsible for the preparation and 
presentation of the Remuneration Report 
in accordance with Section 300A of the 
Corporations Act 2001.

Our responsibilities
We have audited the Remuneration Report 
included within the Director’s report for the 
year ended 31 December 2017.

Our responsibility is to express an opinion 
on the Remuneration Report, based on 
our Audit conducted in accordance with 
Australian Auditing Standards.

KPMG

Paul Cenko

Partner

Adelaide

22 February 2018 

Responsibilities of Directors  
for the Financial Report 
The Directors are responsible for:

 / preparing the Financial Report that gives 
a true and fair view in accordance with 
Australian Accounting Standards and the 
Corporations Act 2001;

 / implementing necessary internal control 
to enable the preparation of a Financial 
Report that gives a true and fair view and is 
free from material misstatement, whether 
due to fraud or error; and

 / assessing the Consolidated Entity’s ability to 
continue as a going concern. This includes 
disclosing, as applicable, matters related to 
going concern and using the going concern 
basis of accounting unless they either 
intend to liquidate the Consolidated Entity 
or to cease operations, or have no realistic 
alternative but to do so.

Auditor’s responsibilities for  
the audit of the Financial Report
Our objective is:

 / to obtain reasonable assurance about 

whether the Financial Report as a whole is 
free from material misstatement, whether 
due to fraud or error; and

 / to issue an Auditor’s Report that includes 

our opinion.

Reasonable assurance is a high level of 
assurance, but is not a guarantee that 
an audit conducted in accordance with 
Australian Auditing Standards will always 
detect a material misstatement when it 
exists.

Misstatements can arise from fraud or error. 
They are considered material if, individually 
or in the aggregate, they could reasonably  
be expected to influence the economic 
decisions of users taken on the basis of this 
Financial Report.

A further description of our responsibilities 
for the Audit of the Financial Report is 
located at the Auditing and Assurance 
Standards Board website at: http://www.
auasb.gov.au/auditors_files/ar2.pdf.  
This description forms part of our  
Auditor’s Report.

ANNUAL AND SUSTAINABILITY REPORT 2017 
SH A ReHoL DeR  I n f oR M A

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Shareholder  
Information

Capital
Share capital comprised 298,664,750 fully paid ordinary shares on 14 February 2018.

Shareholder details
At 14 February 2018, OZ Minerals had 40,986 shareholders. There were 812 shareholdings 
with less than a marketable parcel of $500 worth of ordinary shares.

top 20 investors at 14 february 2018 

Name

HSBC Custody Nominees (Australia) Limited

J P Morgan Nominees Australia Limited

Citicorp Nominees Pty Limited

National Nominees Limited

BNP Paribas Nominees Pty Ltd 

Citicorp Nominees Pty Limited 

BNP Paribas Noms Pty Ltd 

HSBC Custody Nominees (Australia) Limited - GSCO ECA

UBS Nominees Pty Ltd

Romsup Pty Ltd 

HSBC Custody Nominees (Australia) Limited - A/C 2 

SBN Nominees Pty Limited <10004 A/C>

AMP Life Limited 

Pacific Custodians Pty Limited OZL Plans CTRL

Brispot Nominees Pty Ltd 

Mr Jose Manuel Do Rego Medeiros

BNP Paribas Noms Pty (NZ) Ltd 

Debortoli Wines Pty Limited

Total

Number of 
Shares

Issued  
Capital %

92,517,063

52,846,840

47,799,004

17,629,822

5,929,762

3,642,184

2,974,740

2,557,640

2,513,164

2,467,057

2,315,000

1,487,656

1,478,700

1,333,862

995,445

881,928

850,000

558,755

558,254

30.98

17.69

16.00

5.90

1.99

1.22

1.00

0.86

0.84

0.83

0.78

0.74

0.50

0.50

0.45

0.33

0.30

0.28

0.19

0.19

243,534,494

81.54

HSBC Custody Nominees (Australia) Limited 

2,197,618

Substantial shareholders of OZ Minerals Limited at 14 February 2018
Norges Bank advised that as at 05 February 2018, it and its associates had an interest in 
15,378,264 shares, which represented 5.15 per cent of OZ Minerals capital at that time.

BlackRock group advised that as at 23 November 2017, it and its associates had an interest  
in 16,634,150 shares, which represented 5.56 per cent of OZ Minerals capital at that time.

Dimensional Entities advised that as at 10 November 2015, it and its associates had an 
interest in 21,336,936 shares, which represented 7.03 per cent of OZ Minerals capital at  
that time.

1 3 2

Investor categories at  14 february 2018 

Ranges

1 – 1000

1001 – 5000

5001 – 10000

10001 – 100000

100001 and Over

Total

Number of 
Investors

30,985

8,270

1,097

590

44

Number  
of Shares

10,891,261

18,385,825

7,914,734

13,600,247

247,872,683

40,986

298,664,750

Issued  
Capital %

3.65

6.16

2.65

4.55

82.99

100

Voting rights
On a show of hands, every member present in person or by attorney or by proxy or by 
representative shall have one vote. Upon a poll, every member present in person or by 
attorney or by proxy or by representative shall have one vote for every share held by the 
member. Where more than one proxy, representative or attorney is appointed, none may  
vote on a show of hands.

Other securities on issue
The Company has performance rights on issue in addition to ordinary shares. The details  
of the securities held as at 14 February 2018 are as follows:

Class of security

Performance Rights

Number of 
holders

Number of 
securities

267

2,320,503

No voting rights attach to the above securities, however, any ordinary shares that are allotted 
to the holders of the securities upon vesting or conversion of the above mentioned securities 
will have the same voting rights as all other ordinary OZ Minerals shares.

Dividends
A fully franked final dividend of 14 cents per share will be paid on 26 March 2018. An interim 
dividend of six cents per share fully franked was paid to shareholders on 21 September 2017. 
This brings the total dividend for calendar year 2017 to 20 cents per share fully franked.

Dividend payments
Your dividend payments are credited directly into any nominated bank, building society or 
credit union account in Australia.

On-market buy-back
The Company announced on 23 February 2017 that it would not renew the on-market 
buy-back of fully paid ordinary shares that was due to end no later than 26 February 2017. 
Between 14 March 2016 and 26 February 2017 there were 4.8 million shares bought back 
for total consideration of $29.9 million.

Annual Report
You can access a full copy of the Annual Report online at www.ozminerals.com. If you  
no longer wish to receive a hard copy of the Annual and Sustainability Report, log into  
your shareholding or contact our share registry to update your shareholder  
communication instructions.

ANNUAL AND SUSTAINABILITY REPORT 2017SH A ReHoL DeR  I n f oR M A

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Share registry information
The OZ Minerals share registry is maintained by Link Market Services Limited.

Visit Link Market Services’ website linkmarketservices.com.au and access a wide variety  
of holding information, change your personal details and download forms. You can:

 / check your current and previous holding balances

 / elect to receive financial reports electronically

 / update your address details

 / update your bank details

 / confirm whether you have lodged your Tax File Number (TFN),  

Australian Business Number (ABN) or exemption

 / check transaction and dividend history

 / enter your email address

 / check the share prices and graphs

 / download a variety of instruction forms.

You can access this information via a security login using your Security Holder Reference 
Number (SRN) or Holder Identification Number (HIN) as well as your surname (or company 
name) and postcode (must be the postcode recorded on your holding record).

Contact information
Shareholder enquiries about shareholding should be addressed to Link Market Services.  
You can contact the Company’s share registry by calling (61) 1300 306 089, local call  
cost within Australia. Share registry contact information can be found on the back cover  
of this report.

1 3 4

ANNUAL AND SUSTAINABILITY REPORT 2017GLoS S A R y

1 3 5

Glossary

Acid rock drainage

IUCN Red List

Tailings

When rock surfaces are exposed to air and 
rain, a reaction can occur with the elements 
in the rock which results in a change in the 
characteristics of the water that runs off. 
If the rock contains sulphides, oxidation 
processes can acidify the water. This process 
is known as acid rock drainage.

Biodiversity

Biodiversity is the variety of plants, animals 
and micro-organisms, their genetic variation 
and the different ecosystems of which  
they inhabit.

Carbon dioxide equivalent (CO2-e)

Carbon dioxide equivalent is a standard 
measurement used to indicate the impact  
of various greenhouse gas emissions on 
global warming relative to the same  
amount of carbon dioxide (CO2).

Copper concentrate

The Prominent Hill operation produces 
copper concentrate. This is a fine-grained 
material that contains a percentage of 
copper, gold and other minerals which has 
been concentrated to increase its copper 
concentration through the removal of waste 
materials. Copper concentrate is used by 
smelters to produce copper in its metal form.

Footprint

The area disturbed by OZ Minerals’ 
operations and activities.

Global Reporting Initiative (GRI)

An international multi-stakeholder process 
aimed at producing and disseminating 
globally applicable sustainability reporting 
guidelines. These guidelines are for voluntary 
use by organisations for reporting on 
the economic, environmental and social 
dimensions of their activities, products  
and services. For more information, see  
www.globalreporting.org.

Greenhouse gases

Gases in the Earth’s atmosphere that  
absorb and re-emit infrared radiation, 
including carbon dioxide (CO2), 
methane (CH4), nitrous oxide (N2O), 
hydrofluorocarbons, perfluorocarbons  
and sulphur hexafluoride (SF6).

Hectare (ha)

A hectare is a unit of area equal to 10,000 
square metres. Usually used to measure land.

The International Union for Conservation of 
Nature and Natural Resources (IUCN) Red List 
of threatened species provides information 
about the characteristics, conservation status 
and distribution of flora and fauna species 
facing the risk of extinction.

Finely ground materials from which valuable 
minerals have been largely extracted.

Tailings storage facility (TSF)

Facility designed for the storage of tailings 
material produced during ore processing.

Kilolitre (kL)

One kilolitre is equal to one thousand litres.

Total recordable injury  
frequency rate (TRIFR)

Leading my career

A training and mentoring program for 
highperforming females, run collaboratively 
between OZ Minerals, Beach Energy and 
Thiess Mining (Prominent Hill).

TRIFR is the total number of recordable 
injuries per million working hours. 
‘Recordable Injuries’ include those that 
result in lost time, medical treatment and 
restricted work injuries. First aid injuries are 
not included.

Lost time injury frequency rate (LTIFR)

Waste rock

Material such as soils, barren or uneconomic 
mineralised rock that surrounds a mineral 
orebody and must be removed in order to 
mine the ore.

A Lost Time Injury is a work-related injury or 
illness resulting in an absence from rostered 
work of at least one full day or shift any time 
after the day or shift on which the injury 
occurred. The LTIFR is the number of LTIs  
per million hours worked.

Megalitre (ML)

One megalitre is equal to one million litres.

Significant community issues

Key concerns raised by local community 
stakeholders that are a result of or strongly 
influenced by OZ Minerals’ activities within 
operational control.

Significant incidents

Any occurrence that has actually resulted 
in or had the potential to result in 
consequences that have moderate to major 
impacts on safety, health, environment or 
the community. These are internally classified 
as Level 3 and above. In previous reports, 
safety-related significant incidents were 
referred to as high potential incidents.

Significant occupational exposures

Substances that potentially may present  
a significant health risk from exposure to  
OZ Minerals’ Prominent Hill employees  
and similar exposure groups.

Site culture development strategy

A Prominent Hill initiative that enables 
employee and contractor management to 
define, assess and improve key areas to 
improve the overall safety culture.

Stakeholders

Any person, group or interested party that 
may be impacted by OZ Minerals’ operations, 
activities or performance.

OZ Minerals Limited

ABn 40 005 482 824

Corporate Office

162 Greenhill Road, Parkside
South Australia 5063 Australia
telephone: (61 8) 8229 6600
facsimile: (61 8) 8229 6601
info@ozminerals.com

Share Registry

Link Market Services Limited
tower 4, 727 Collins Street 
Docklands 
Victoria 3008 Australia 
telephone: (61) 1300 306 089
facsimile: (61 2) 9287 0303
www.linkmarketservices.com.au

Investor enquiries

tom Dixon
Group Manager Investor Relations
telephone: (61 8) 8229 6628
tom.dixon@ozminerals.com