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THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION FOR THE PURPOSES
OF ARTICLE 7 OF REGULATION 2014/596/EU WHICH IS PART OF DOMESTIC UK
LAW PURSUANT TO THE MARKET ABUSE (AMENDMENT) (EU EXIT) REGULATIONS
(SI 2019/310) ("UK MAR"). UPON THE PUBLICATION OF THIS
ANNOUNCEMENT, THIS INSIDE INFORMATION (AS DEFINED IN UK MAR) IS NOW
CONSIDERED TO BE IN THE PUBLIC DOMAIN.
URA Holdings
plc
("URA" or
the "Company")
Positive Results from
Financial Model for the Gravelotte Emerald Mine
URA Holdings Plc ("URA" or the
"Company") is pleased to announce the results of an independent
desk-based review of the Discounted Cashflow (DCF) model for the
Gravelotte Emerald Mine (GEM) in South Africa, conducted by ACA
Howe International Limited. This review is based on ACA Howe's
extensive experience with the Gravelotte Emerald Mine, including
their historical work, site visits, and Mineral Resource Estimation
reported in accordance with the JORC code in the 2023 Competent
Person's Report (CPR). The review highlights the potential
profitability of the project over a 17-year mine life.
Highlights:
•
Net Present Value (NPV) before tax
at 10% Discount Rate of USD
22.39 million
•
Internal Rate of Return
(IRR) of
76%
Project turns profitable from year 2 of
operations
· Average Total
Operating Cost per Tonne of USD
54.70 /t
Capital Expenditure (CapEx), excluding Sustaining
CapEx: USD 2.58 million
•
Operating Expenditure
(OpEx): USD 67.28 million over Life of Mine (LOM)
•
Life of Mine (LOM): 17
years
•
Total Payable Ore: 1.23
million tonnes
•
Average Annual Production:
Ramping up to 90,000 tonnes per annum over 6 years
•
Estimated total
Profit before Tax over LOM: $79.5
million
·
Payback
Period: 2.5 years
Bernard Olivier, CEO of URA Holdings Plc,
commented: "We are extremely
encouraged by the results of the ACA Howe review, which confirms
the potential robust economics of the Gravelotte Emerald Mine. The
high IRR and positive NPV underscore the significant potential
value this project can bring to our shareholders. With the initial
production startup capital expenditure already completed, and the
mine now back in production, we are well-positioned to advance this
project and capitalize on the opportunities it presents. The model
is based on our current Inferred JORC resource of 29m carats and an
allowance for a small portion of the JORC Exploration Targets (up
to 344 million carats) that are below the Inferred Resources to be
upgraded and mined in years 14 to 17 of production, based on the
significant exploration that is planned. Our experienced team is
committed to executing our strategy and delivering long-term value.
We also look forward to updating the market and our shareholders
further on our ongoing operational activities shortly."
The ACA Howe review involved an
assessment of the mining and processing estimates used in URA's DCF
model. The review verified that the accuracy of the input data is
reasonable given the level of planning completed to date and
ensured that the proposed mining method and processing flowsheet
are suitable for the deposit. Key factors such as mining costs,
processing costs, and the overall economic assumptions were
evaluated to ensure the reliability of the model. It is noted that
more detailed planning would be required for the completion of a
Scoping Study.
Additional Info:
Key
Assumptions and Parameters:
The model incorporates conservative
assumptions and considers a range of sensitivities to ensure the
robustness of the projections.
•
Discount Rate:
10%
•
Exchange Rate: USD to ZAR
1:18
•
Strip Ratio: 1:1 (adjusted
to 2:1 in sensitivity analysis)
•
Mining Method: Conventional
open pit mining
•
Processing
Method: Crushing & Screening
circuit linked to optical sorter and associated
equipment.
·
Selling
Price: Historical price per carat
typically varied between USD 0.1 and USD25 per carat but
high-quality stones can exceed USD250 per carat. A conservative
average of USD5 per carat was used in the DCF model.
·
Grade: 6.1 grams / tonne (Cobra
and Discovery weighted average) as per the Inferred Mineral
Resources reported in accordance with the JORC code in the 2023
CPR.
Net
Present Value (NPV) Sensitivity Analysis:
•
At 8% Discount Rate: USD
26.64 million
•
At 9% Discount Rate: USD
24.40 million
·
At 10% Discount
Rate: USD 22.38 million
•
At 11% Discount Rate: USD
20.58 million
Operational Summary:
The operational plan is designed to
optimize both the mining and processing phases, ensuring maximum
recovery and minimal environmental impact. Key components
include:
•
Mining Schedule: Gradual
increase from 30,000 tonnes per annum to a steady state of 90,000
tonnes per annum over 6 years
•
Mining Cost: USD 6.67 per
tonne mined (steady state cost in year 7)
•
Processing
Infrastructure: Includes a Hadfield
jaw crusher, vibrating screens, trommel, and
Angelon optical colour sorter.
•
Total Operating Cost per Tonne of
ROM: USD 54.70
•
Security Measures:
Extensive security protocols to mitigate the risk of gemstone
theft.
Capital Expenditure Breakdown over LOM:
•
Initial startup CapEx: USD 838,465 (already
incurred)
•
Total remaining CapEx over
LOM: USD 2.58 million
•
Key CapEx
Components: Processing plant
including colour sorters, electrical infrastructure, water
infrastructure, and security infrastructure
Operating Expenditure Breakdown over LOM:
•
Mining: USD 24.6 million
(36.6% of total OpEx)
•
General Costs (including
processing and security): USD 19.91 million (29.6% of total
OpEx)
•
Marketing: USD 8.36 million
(12.4% of total OpEx)
•
Other Costs (exploration,
management, labour): USD 14.40 million (21.4% of total
OpEx)
Average LOM Costs:
•
Average Mining Cost per
Tonne: USD 20.00
•
Average General Cost per
Tonne: USD 16.19
•
Average Marketing Cost per
Tonne: USD 6.80
· Average Other costs per
tonne: USD 11.7
•
Average Total Operating Cost per
Tonne: USD 54.70
2.
Geological Setting
2.1
Regional Geology
The GEM is situated in the Limpopo
Belt, a geologically complex region characterized by high-grade
metamorphic rocks and intrusive granitic bodies. The emeralds at
GEM are primarily found in biotite schist, which is part of the
Gravelotte Formation. This formation is intruded by granitic rocks
of the Germania Hill Complex, which play a crucial role in the
mineralization process.
2.2
Local Geology
The emerald-bearing zones are
located in the Cobra and Discovery pits. These zones are associated
with reaction zones between biotite schist and intrusive granitic
bodies, and sometimes within fractures and micro-fractures within
the schist.
3.
Resource Estimates
The financial model is based on the
current JORC Inferred Resource totalling 29m carats (year 1-14),
plus approximately 8.5 million carats of JORC Exploration Target
material from beneath the Inferred Resources (year 14-17) (Section
4). The economics are subject to change as
more detailed work is completed and are based on Inferred Mineral
Resources and Exploration Targets that are considered too
speculative geologically to have the economic considerations
applied to them that would enable them to be categorized as Mineral
Reserves, and there is no certainty that the results reported will
be realized. More detailed planning would be required for the
completion of a Scoping Study.
The Mineral Resources have been
reported in accordance with the guidelines of the "Australasian
Code for Reporting of Exploration Results, Mineral Resources and
Ore Reserves (2012 Edition)" ("JORC Code").
The Mineral Resource statement for
Gravelotte is presented in Table 1 below. The estimate is in
respect of in situ
material.
Table 1: Inferred Mineral
Resource estimate for the GEM emerald deposit
|
Deposit
Zone
|
Category
|
Tonnage (million tonnes)
Emerald-Bearing Schist
|
Grade (g/t)
|
Emerald
Tonnes8
|
Emerald Carats (million
carats)8
|
Cobra
|
Inferred
|
1.2
|
6.4
|
3.9
|
19.4
|
Discovery
|
Inferred
|
0.7
|
5.7
|
1.9
|
9.6
|
Total
|
Inferred
|
1.9
|
|
5.8
|
29.0
|
Notes:
1. Mineral Resources were estimated
using the definitions and guidelines of the JORC
Code.
2. Assigned grades are derived from
limited historical production and bulk sampling.
3. Tonnages are derived from modelling
of interpreted emerald-bearing schist based on historical drilling.
A payability factor has been applied as acknowledgement that it has
not been possible to model controls on mineralisation within the
schist due to limited data.
4. Both the estimates for Cobra and
Discovery have been depleted by an approximate tonnage based on
historical information and limited historical
records.
5. Inferred Mineral Resources have a
large degree of uncertainty as to their existence and whether they
can be mined economically. Mineral Resources that are not Mineral
Reserves do not have demonstrated economic
viability.
6. The quantity and grade of reported
Inferred Mineral Resources in this estimation are uncertain in
nature and there has been insufficient exploration to define these
Inferred Mineral Resources as an Indicated or Measured Mineral
Resource and it is uncertain if further exploration will result in
upgrading them to an Indicated or Measured Mineral Resource
category.
7. A bulk density of 2.7
g/cm3 was used for the modelled emerald-bearing schist.
The value used is based on the figure used by previous owners and
assessment of lithologies intersected in
drilling.
8. The measure in Emerald Tonnes and
Emerald Carats reflects the quantity after applying a 50%
payability.
4.
JORC Exploration Targets
The financial model assumes the
conversion of approximately 8.5 million carats from the Cobra Pit
and Discovery Main Exploration Targets, which are beneath the
Inferred Mineral Resources described in Section 3. For the purposes
of the financial model, URA has assumed that it will be possible to
upgrade the Cobra Pit and Discovery Main Exploration Targets (years
14-17 in the DCF model), to Mineral Resources with additional
exploration beneath the current Resource areas. However, it is not
certain that this outcome will be achieved.
The remainder of the Cobra Pit and
Discovery Main Exploration Targets, as well as the other
Exploration Targets, as detailed in Table 2 below, are excluded
from the financial model and represent further upside
potential.
Exploration Targets are reported in
accordance with Section 18 of the JORC Code and the following
should be noted:
· Exploration Targets must be expressed so that it cannot be
misrepresented or misconstrued as an estimate of Mineral Resources
or Ore Reserves;
· any
statement referring to potential quantity and grade of the target
must be expressed in ranges
· potential quantity and grade as reported in respect of the
Exploration Targets are conceptual in nature;
· for
these additional areas, there has been insufficient exploration to
define a Mineral Resource; and
· it is
uncertain if further exploration (as planned by the Company) will
result in the determination of a Mineral Resource.
There is significant uncertainty
implicit in the estimation of an Exploration Target as defined
within the JORC Code. The JORC Code definition of an Exploration
Target is as follows:
"An Exploration Target is a statement or
estimate of the exploration potential of a mineral deposit in a
defined geological setting where the statement or estimate, quoted
as a range of tonnes and a range of grade (or quality), relates to
mineralisation for which there has been insufficient exploration to
estimate a Mineral Resource."
The JORC Exploration Targets (See
Table 2 below) are all areas where the current database for the GEM
property indicates that there is geological continuity with
adjacent Mulati Formation ("MF") emerald-bearing schists. Modelling
of potential emerald-bearing schist is based on the
following:
· Drilling and interpreted geological continuity beneath
Inferred Mineral Resources - Cobra Pit, Discovery Main.
· Historical mining and interpreted geological continuity
beneath Cobra South pit - Cobra South.
· Drilling and interpreted geological continuity along strike
from Inferred Mineral Resources - Cobra Far North, Discovery West,
Cobra South-Discovery West.
·
Other areas assessed by historical drilling but
not along strike of Inferred Mineral Resources - Discovery South,
Discovery North, Discovery Hill.
Table 2: JORC Exploration Target mineralisation for the
GEM
|
Exploration Target
|
Tonnage Range
|
Grade
|
|
Emerald Content
|
|
(MT)
|
|
(g/t)
|
|
Million carats
|
|
Min
|
Max
|
Min
|
Max
|
Min
|
Max
|
Cobra Pit
|
0.6
|
0.8
|
4.8
|
8
|
14
|
32
|
Cobra Pit Far North
|
0.7
|
0.9
|
4.8
|
8
|
17
|
36
|
Cobra Pit South
|
0.4
|
0.5
|
4.8
|
8
|
10
|
20
|
Discovery Main
|
0.4
|
0.5
|
4.5
|
7
|
9
|
18
|
Discovery West
|
0.35
|
0.45
|
4.5
|
7
|
8
|
16
|
Discovery North
|
0.5
|
0.7
|
4.5
|
7
|
11
|
25
|
Discovery South
|
0.4
|
0.5
|
4.5
|
7
|
9
|
18
|
Discovery Hill
|
3.3
|
4
|
4.5
|
7
|
74
|
140
|
Cobra S & Discovery
West
|
0.3
|
0.4
|
4.5
|
7
|
7
|
14
|
Sable Kop
|
0.1
|
0.2
|
4.5
|
7
|
2
|
7
|
Beryl Kop East
|
0.2
|
0.3
|
2.2
|
5
|
2
|
8
|
Beryl Kop West
|
0.4
|
0.5
|
2.2
|
5
|
4
|
13
|
Total carats (million)
|
|
|
|
|
168
|
344
|
Notes:
1. Exploration Targets are conceptual
in nature and are not Mineral Resources.
2. The tonnage, grade and content
ranges as presented are meant to impart the conceptual nature of
the Exploration Target in line with the JORC
Code.
3. Exploration Targets were estimated
using the definitions and guidelines of the JORC
Code.
4. An Exploration Target is material
that has a reasonable degree of geological confidence but for which
there is insufficient exploration to define a Mineral Resource. It
is not certain that further exploration will result in the target
being delineated as a Mineral Resource.
5. Assigned grades are derived from
limited historical production and bulk sampling.
6. Tonnages are derived from modelling
of interpreted emerald-bearing schist based on historical drilling.
A payability factor has been applied as acknowledgement that it has
not been possible to model controls on mineralisation within the
schist due to limited data.
5.
Mining and Processing
5.1
Mining Method
Mining at GEM will be conducted
using conventional open pit methods, including drilling, blasting,
loading, and hauling with hydraulic excavators and articulated dump
trucks. The mining schedule is designed to ramp up production from
30,000 tonnes per annum (tpa) in the first two years to a steady
state of 90,000 tpa by year seven.
5.2
Processing Plant
The processing plant at GEM includes
a jaw crusher, vibrating screens, trommel, and an Angelon CCD
colour sorter. The plant is designed to maximize recovery while
minimizing damage to the emeralds. The processing flow involves
crushing, screening, and sorting, followed by secure storage of the
emerald concentrate.
6.
Sensitivity Analysis
The sensitivity analysis
demonstrates that the project is most sensitive to changes in the
selling price, grade, and recovery of emeralds. Variations in
operating and capital costs have a less significant impact on the
overall NPV.
6.1
Key Sensitivities
•
Selling
Price: A 15% increase in selling
price results in an NPV of USD 30.84 million, while a 15% decrease
reduces the NPV to USD 13.94 million.
•
Output: A 15% increase in
output results in an NPV of USD 27.91 million, while a 15% decrease
reduces the NPV to USD 16.87 million.
•
Operating Costs: A 15% increase
in operating costs reduces the NPV to USD 16.98 million, while a
15% decrease increases the NPV to USD 27.80 million.
7.
Risks and Mitigation
7.1
Key Risks
•
Geological
Uncertainty: The inferred resource
estimates are based on historical data, which introduces
uncertainty in the grade and distribution of emeralds.
•
Selling
Price: URA has not commissioned an
independent stone valuation and historical values have been
used.
•
Security: Gemstone theft is a
significant risk. URA has implemented extensive security measures
to mitigate this risk.
•
Market
Volatility: The price of emeralds
can be volatile, impacting the project's financial
performance.
7.2
Mitigation Strategies
•
Exploration: Continued
exploration to upgrade Inferred Resources to Measured and Indicated
categories. Additional exploration is planned to further assess the
potential of the Exploration Targets.
•
Selling
Price: An independent valuation will
be completed when sufficient stones are available from the early
stages of mining.
•
Security
Measures: Implementation of advanced
security protocols and continuous monitoring.
•
Market
Analysis: Regular market analysis to
adjust the selling price and optimize sales strategies.
8.
Conclusion
The GEM project demonstrates strong
financial potential with a significant NPV and IRR. The review by
ACA Howe confirms the potential profitability of the
project.
9.
Cautionary Disclosures
· The
financial model is based on Inferred Mineral Resources (year 1-14)
and Exploration Targets (year 14-17) that are considered too
speculative geologically to have the economic considerations
applied to them that would enable them to be categorised as Mineral
Reserves, and there is no certainty that the results reported will
be realised. For the purposes of the financial model, URA has
assumed that it will be possible to upgrade the Cobra Pit and
Discovery Main Exploration Targets (years 14-17 in the DCF model),
to Mineral Resources with additional exploration beneath the
current Resource areas. However, it is not certain that this
outcome will be achieved.
· Note
that Mineral Resources that are not Mineral Reserves do not have
demonstrated economic viability, and no Mineral Reserves have been
reported for the Gravelotte Emerald Mine. Scoping, Pre-Feasibility
and Feasibility studies have not been completed and the economic
forecasts herein should be viewed as indicative, based on the
information currently available. The economics are subject to
change once more detailed studies are completed.
· The
JORC code states that caution should be exercised if Inferred
Mineral Resources are used to support technical and economic
studies.
· Mineral Resources and Exploration Targets - see sections 3 and
4 above.
· Mining
- detailed mine planning has not been completed and ACA Howe has
relied on CapEx and OpEx estimates based on quotes from suppliers
and local knowledge, provided by URA. ACA Howe considers the mining
method, proposed equipment, estimated CapEx and OpEx, and annual
tonnages included in the DCF to be reasonable. CapEx and OpEx
estimates are subject to change as more detailed planning is
completed.
· Processing - the encouraging testwork completed to date using
the optical sorter has been in laboratory conditions only. ACA Howe
has relied on CapEx and OpEx estimates based on quotes from
suppliers and local knowledge. ACA Howe considers the proposed
process flowsheet, associated CapEx and OpEx, and throughput
included in the DCF to be reasonable. CapEx and OpEx estimates are
subject to change as more detailed planning is
completed.
· Selling Price - URA has not commissioned an independent stone
valuation and historical values have been used. ACA Howe are not
gemstone market experts and have not verified the valuation applied
in the financial model. The value per carat will be assessed by an
independent expert when sufficient stones are available from the
early stages of mining.
Competent Person's Statement
The information contained in this
announcement relates to an independent desk-based review of the
Financial and Discounted Cashflow Model prepared by the Company.
ACA Howe Associates Richard Hope and Roy Spencer have reviewed the
mining and processing inputs to the model and are Competent Persons
as defined by the JORC Code. Messrs Hope and Spencer have
sufficient experience relevant to the style of mineralisation,
basis of assumptions and type of deposit under consideration, and
to the activity being undertaken, to qualify as Competent Persons.
Winsor Lewis has reviewed URA's DCF model and reported results as
appropriate. He is a finance professional with extensive experience
in the economic analysis of mining projects. He is not a Competent
Person as defined by the JORC Code as he does not have a geoscience
or engineering background. Messrs Lewis, Hope and Spencer are
not gemstone market experts and have not verified the stone value
applied in the financial model.
Messrs Lewis, Hope and Spencer have
reviewed and approved the information in this
announcement.
For the purposes of UK MAR, the
person responsible for arranging the release of this announcement
on behalf of URA is Dr Bernard Olivier, Chief Executive Officer of
URA Holdings Plc.
Enquiries:
URA Holdings
plc
Chief Executive Officer
Bernard Olivier
Director
Peter Redmond
Chief Operating Officer
Jeremy Sturgess-Smith
|
+44 (0)746
368 6497
info@uraholdingsplc.co.uk
|
Peterhouse Capital Limited
Joint Corporate Broker
Lucy Williams
Duncan Vasey
Capital Plus Partners
Joint Corporate Broker
Keith Swann
Jon
Critchley
|
+44 (0)20
7469 0930
+44 (0)203
821 6169
+44 (0)203
821 6168
|
CMC
Markets
Joint Corporate Broker
Douglas Crippen
|
+44 (0)20
3003 8632
|
About URA Holdings Plc
URA Holdings Plc is a pioneering
mining company dedicated to restart and rebuild the Gravelotte
Emerald Mine (GEM), a historic emerald mine located in South
Africa. With a legacy of being one of the world's largest emerald
producers, GEM has reawakened under our stewardship, marking the
beginning of a new chapter in its storied history.
At URA Holdings Plc, we are
committed to sustainable and responsible mining practices that
prioritize environmental conservation, community development, and
ethical sourcing. Our modern mining techniques and advanced
technologies ensure efficient operations while minimizing
ecological impact and upholding the highest standards of workplace
safety.
We are proud to announce the
commencement of emerald production at GEM, a significant milestone
in our journey towards revitalizing this iconic mine. Our ethically
mined emeralds are extracted and processed with integrity and
transparency, adhering to strict ethical standards and fair labor
practices. By prioritizing ethical mining practices, we strive to
foster a positive impact on the local communities and environment
surrounding our operations.
For more information about URA
Holdings Plc, including updates on emerald production, corporate
news, and our commitment to ethical mining, please visit our
website at www.uraholdingsplc.co.uk
or connect with us through our social media
channels:
• X (formally known as Twitter):
@ura_plc
Join us as we lead the way in
sustainable mining practices and ethically sourced gemstones,
paving the path for a brighter and more responsible future in the
gemstone mining industry.
Note to Editors:
ACA Howe International Limited is a
leading independent geological and mining consultancy, providing
services to the global mining industry for over 40 years. The firm
specializes in geological, mining, and financial evaluations,
delivering comprehensive reports and technical advice to mining
companies worldwide.