REVIEW OF OPERATIONS – EXPLORATION AND BUSINESS DEVELOPMENT

F2009
Achievements
- Near mine
exploration success
at St Ives, Agnew
and Damang.
- Three greenfields
projects at the
advanced drilling
stage.
Tommy McKeith
Executive Vice President: Head of Exploration and Business Development
Gold Fields’ growth strategy is focused on creating our own high quality gold opportunities through
an aggressive exploration programme. By leveraging our technical excellence in area selection
and programme execution, the Exploration Group aims to improve the likelihood of success and
significantly reduce project development timelines.
Our strategy is based on a measured and thoughtful approach when adding new projects to
the portfolio. The aim is to strike the appropriate balance between size, quality and the various
risks associated with the opportunity. These tradeoffs will continually be re-assessed as a project
advances through the development pipeline to ensure its economic potential is commensurate with
its technical, commercial, geopolitical, social and environmental risks.
Near mine exploration around our operations in Australia, Ghana and Peru is a priority for our
Group. During the year, we advanced the Athena and Hamlet discoveries at St Ives to the feasibility
stage and advanced exploration opportunities at all our sites. Near mine exploration is focused
on unlocking the option value of our international gold operations and providing a robust platform
for regional growth. This is reflected in positive growth trends in annual resource and reserve
declarations.
Most of our greenfields exploration is organised to provide the growth pipeline for our international
regions: South America, West Africa and Australasia. During the year, Gold Fields advanced this
portfolio to the extent where we now have advanced drilling projects in Peru and Mali. Initial drilling
projects in Australia and Chile are showing significant potential and we hope to progress these
during the next financial year.
Positioning Gold Fields for the longer term, we are establishing exploration activities in a few key
prospective geological belts in new regions, away from our existing operations. During the year, the
Talas Project in Kyrgyzstan progressed to the advanced drilling stage and continues to demonstrate
promise. New exploration search spaces can also arise through the application of new geological
concepts and technologies, which we have employed at our initial drilling projects in Canada
located within a supposedly mature exploration terrain in British Columbia.
Our objectives are carefully considered in the current environment, and include:
- Developing a robust pipeline of quality greenfields opportunities capable of generating a Gold
Fields development project every two to three years; the goal is to establish a steady state
greenfields pipeline by 2014;
- Establishing Gold Fields’ presence in select regions around the world with the aim of establishing
a dominant position in areas containing the most promising emerging and prospective gold
belts; and
- Providing Gold Fields’ international operating regions with a growth pipeline to achieve the
targeted production goal of one million ounces a year from each region through exploration
success and value accretive business development.
To achieve these goals, Gold Fields has assembled a team of experienced and motivated
professionals. Gold Fields has stated that if we cannot mine safely, we will not mine. This principle
applies to the exploration team: if we cannot explore safely, we will not explore. We continually
strive to provide a safe and healthy working environment at all our projects with the ongoing aim
of achieving zero safety related incidents and accidents. From an environmental perspective, the
Exploration Group utilises industry best practices that minimise our footprint wherever possible.
To demonstrate this commitment to safety and the environment, the Gold Fields Exploration Group
has achieved and will strive to maintain ISO14001 and OHSAS18001 certification at its offices and
projects around the world. As a team, we know that the Exploration Group is the first ambassador
of Gold Fields in a community. Consequently we always strive to leave a positive and lasting legacy.
Our stakeholders can rely on Gold Fields to make positive contributions and be constructive
members of the communities in which we work.
Tommy McKeith
INTRODUCTION
Gold Fields operates a disciplined exploration
project management system with clear decision
gates based on the discovery potential and
economics of a target. The different stages
of an exploration target’s development are as
follows:
- Target definition;
- Initial drilling;
- Advanced drilling;
- Resource development; and
- Bankable feasibility study.
To be successful, targets need to be drill
tested and advanced to the next exploration
phase. There is a strong focus in Gold Fields’
Exploration Group on turning over targets as
effectively as possible by drill testing and, where successful, advancing these projects
in a timely manner.
Greenfields exploration is generated by
reviewing and ranking the most prospective
terrains across the world. Highly ranked belts
are selected for exploration after a further
screen of country risk and strategic fit to Gold
Fields. Each exploration region continuously
monitors and reviews a variety of exploration
and business development opportunities,
targeting projects at all stages of development.
When evaluating new opportunities or assessing
conceptual targets, we use various metrics,
which include reserve and production potential,
margin, payback period, initial capital costs,
development timeline, net asset value, earnings
and cashflow. |
| Advanced Drilling |
1 |
– |
1 |
2* |
| Initial Drilling |
4 |
13 |
1 |
3 |
| Target Definition |
20 |
15 |
14 |
9 |
|
*Includes Arctic Platinum Project.
There has been considerable progress over the
last year on Gold Fields’ exploration portfolio.
For the first time in the Group’s history, we have
three advanced drilling exploration projects
underway at the same time:
- The Talas joint venture with Orsu Mining
in Kyrgyzstan, where we are advancing a
resource delineation drilling programme at
the Taldybulak copper-gold target as well as
testing other promising targets within the belt;
- The Chucapaca joint venture between Minera
Gold Fields Peru S.A and with Buenaventura
in Peru, where recent drilling intersected
significant gold with copper grades and this
resulted in approval to carry out an aggressive
resource delineation programme on this
discovery; and
- At the Sankarani joint venture with Glencar
in Mali, we are aggressively exploring several
significant mineralised trends. Subsequent to
year-end, Gold Fields made a successful offer
to acquire the entire issued share capital of
Glencar, which includes Glencar’s advanced
Komana prospect.
GREENFIELDS EXPLORATION
The table above provides a breakdown of the
number of targets in Gold Fields for each of
the first three stages of project development
as of 30 June 2009. The table does not include
near mine exploration projects at Gold Fields
operations in South Africa, Ghana, Australia
and Peru.
During F2009 Gold Fields spent a total of
US$90 million on exploration, which included
US$48 million on greenfields exploration
projects and US$42 million on brownfields
exploration projects, of which US$34 million
was capitalised. The exploration budget for
F2010 is substantially higher at US$80 million
for greenfields and US$40 million for near mine,
reflecting the quality of our portfolio.
At the East Lachlan joint ventures in New
South Wales, Australia, we have signed an
additional agreement with Clancy Exploration
Limited on the Myall property and are now
earning into an 80 per cent interest on four
separate joint venture projects. During the
year, initial drilling of bedrock geochemical and
geophysical targets confirmed the presence of
large porphyry systems on two of the properties
analogous to the nearby Cadia and Ridgeway
mines. Drilling on several targets returned
significant intercepts of strong alteration and
encouraging mineralisation.
At the SBX joint venture project in Chile, we
are earning into a 90 per cent interest in three
claims held by SBX Asesorias e Inversiones,
and 100 per cent of a claim held by Aguas
Heladas. During the year we completed
geophysical surveys, bulldozer trenching and a
reverse circulation (RC) drill programme on two
of the properties. Positive results were returned
from the Pircas prospect and a follow-up drilling
programme is planned for the next field season.
We have signed a letter of intent with SBX
Asesorias e Inversiones to earn up to a
70 per cent interest in the Ojo de Maricunga
project in Chile. A definitive joint venture
agreement should be executed soon and
planning for the next field season is currently
underway.
We entered into definitive agreements with
Mindoro Resources Limited in the Batangas
region in the Philippines which allows us
to earn up to a 75 per cent interest in a large
area with known copper/gold porphyries and
epithermal gold prospects. A community
relations programme and field work commenced
at the end of F2009 with the objective of defining
targets for initial drilling in F2010.
A definitive agreement was signed with
Cascadero Copper Corporation, that allows
Gold Fields to earn up to a 75 per cent interest
in the Toodoggone copper/gold project
in British Columbia, Canada. An airborne
magnetics survey was completed during the
spring and field work commenced in June 2009,
which includes ground follow-up geophysics
and geologic mapping. Initial drilling started in
August 2009.
A definitive agreement was signed with the
Woodjam Partners (Fjordland Exploration
Inc. and Cariboo Rose Resources Limited) to earn into a 70 per cent interest in a 40,500
hectare property covering several known
porphyry targets in south-central British
Columbia, Canada. Field work consisting of
core re-logging, geological mapping and
soil sampling has commenced. Geophysical
surveys and initial drilling started in August
2009.
ADVANCED PROJECTS
In late 2008 we announced a joint venture
agreement with Orsu Metals Corporation
for the further exploration and development
of the Talas licence area in northwestern Kyrgyzstan. The agreement gives Gold Fields
the right to earn as much as a 70 per cent
interest in Orsu’s Talas licence area. We
assumed operatorship of the Talas Project
during F2009 and continued an aggressive
drilling programme through the winter months
to delineate the resource potential at the
Taldybulak copper/gold porphyry target as well
as testing other promising targets within the
belt. Results continue to be encouraging and
work is progressing to complete an in-house
conceptual study by Q4 F2010
Our wholly owned exploration subsidiary, Minera
Gold Fields Peru S.A., has exercised its backin
right with Compañia de Minas Buenaventura
S.A.A. to earn a 51 per cent interest in the
Chucapaca project located in southern
Peru. The option was triggered on the back
of the Canahuire discovery on the Chucapaca
tenements where drilling intersected significant
gold and copper mineralisation associated with
the margins of a diatreme breccia. Operatorship
of the project was transferred to Minera Gold
Fields Peru S.A. during F2009 and an aggressive
drill campaign commenced to delineate the
extent of mineralisation of the Canahuire deposit
as well as to test several other prospective
targets in the area. Results have confirmed and
expanded the potential of the deposit and work
is progressing to complete a scoping study in
Q4 F2010.
At the 51 per cent owned Sankarani Joint
Venture with Glencar Mining Plc (Glencar) in
southern Mali, positive initial drilling results over
the year defined extensive mineralised trends
with economic gold grades over significant drill
widths at the Finguana, Bokoro and Sanioumale
sheer-hosted orogenic gold targets. Additional
field work and follow-up drilling will commence
in F2010 following the rainy season with the aim
of progressing this project to the scoping study
stage.
We announced in July 2009, that we had
reached agreement with Glencar on the terms of
a recommended cash offer for its entire issued
share capital. The offer was accepted allowing
us to consolidate 100 per cent ownership of the
Sankarani Properties and Glencar’s advanced
Komana Project where Glencar has delineated
a 1.25 million ounce resource in two separate
ore bodies. Gold Fields plans to complete an
extensive drill-out of the Komana Project to
include in a scoping study during F2011.
At the Arctic Platinum Project in Finland,
positive results from preliminary metallurgical
tests, using a hydrometallurgical process, have
justified additional engineering work to finetune
the cost estimates for using this process
on a commercial scale. The hydrometallurgical
process uses pressure oxidation to take the
base metals and precious metals in concentrate
into solution. The metals are then recovered
from the solution. During F2010 further work will
be completed to assess the economic viability
of the process and a decision will be made on
pilot plant testing by Q4 F2010.
SINO GOLD MINING LIMITED
Towards the end of the financial year, we
announced that agreement was reached on
the sale of our 19.9 per cent stake in Sino Gold
Mining Limited (Sino Gold) to Eldorado Gold
Corporation (Eldorado) for a total consideration
of about US$282 million, paid in Eldorado
shares. Gold Fields received a share exchange
ratio of 48 Eldorado shares for every 100 Sino
Gold shares, which resulted in Gold Fields
holding 27,824,654 Eldorado shares; about
seven per cent of the outstanding shares of
Eldorado on a fully diluted basis. Subsequent
to year end, Gold Fields disposed of its holding
in Eldorado Gold for a total consideration of
C$323 million (US$293 million).
NEAR MINE EXPLORATION
At the St Ives Mine in Western Australia,
the main focus was resource conversion
and extensional drilling at the Athena and
Hamlet deposits, located adjacent to the Argo
underground mine. Athena is a new discovery
and, subject to feasibility study, is the next
underground mine at St Ives. Step out drilling
has confirmed continuity of the main lode to
600 metres below surface, and infill resource
definition drilling demonstrated consistent
widths, grades and geometry. The drilling for
the Athena conceptual study has now been
completed and a full feasibility study will be
completed by mid F2010. At Hamlet, which
is showing both open pit and underground
mining potential, drilling was focused on
near surface resource definition and also at
extending the lateral and depth extents of the
known mineralisation. The strike length of the
resource is about 500 metres while deeper
drilling between 200 and 400 metres below
surface is returning positive results. Drilling will
continue testing along strike of these deeper
results in F2010.
Drilling at the Leviathan complex will be aimed
at testing extensions to the open pit resources
in F2010.
At the Agnew Mine in Western Australia,
underground extensional drilling and resource
conversion at Waroonga was the main focus
for the year, specifically at Kim South and 450
South. The objective at Waroonga is to drill
test and convert an inferred two million ounce
mineral resource position and establish a five-year
reserve base for Agnew. Surface targets
within 10 kilometres of the gold plant were
tested including the Cinderella and Cinderella
NE blocks, where the style of mineralisation is
gold associated with flat veins.
A major programme of drilling to clearly define
the gold potential of the Mine Central Corridor
(MCC) shear zone was also started during
the year. This programme will systematically
explore and model the full potential of the
MCC between five on-lease, major gold
deposits along a 20-kilometre length of the
shear zone. Historical drilling outside of the
known and mined deposits is shallow and
only tested within 50 to 100 metres below
surface.
At the Damang Mine in Ghana, the emphasis
during F2009 has been on extensional drilling
to the south of the main Damang mine and
between some of the smaller surface mines.
Positive results are being returned from the
Nyame and Tamang prospects and suggest
that the Damang mineralisation may extend for
at least two kilometres south of the Damang pit
cutback. To the south of Tamang, extensional
drilling between the Amoanda and Tomento
East surface mines, and between Amoanda
and the Rex surface mine further to the south,
is also starting to show promise. These initial
drilling results are supported by an extensive,
lease-wide gravity and IP geophysical survey
which is scheduled for completion by Q3 of
F2010.
At Cerro Corona in Peru, district exploration
continues in the 50:50 joint venture between
Gold Fields La Cima S.A. and Compañia
de Minas Buenaventura. At the Titan-Arabe
copper/gold target, negotiations are continuing
with the local communities to gain drilling
access. Should we obtain approval from
the communities, the drilling programme will
commence in F2010.
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