MONTREAL, July 4, 2019 /CNW Telbec/ - SRG Mining
Inc. (TSXV: SRG) ("SRG" or the "Company") is pleased to
announce the results of its Feasibility Study ("FS") for the
development of the Lola graphite project in the Republic of
Guinea, West Africa. The FS was prepared by
Montreal-based DRA/Met-Chem, a
division of DRA Americas Inc. ("DRA/Met-Chem"). All dollar figures
are in United States dollars.
The FS was officially started in September 2018 and has been produced with the
input of numerous engineering and consulting firms, notably
DRA/Met-Chem, Epoch, BBA, Sahara Natural Resources, MDEng, SGS
Canada, CCIC, and Jenike & Johanson. Included in the FS is an
updated resource calculation, which follows the Company's 2018
drilling campaign, bringing the total resource to 46.0 million
tonnes ("Mt") of measured and indicated resources grading 4.09%
graphitic carbon ("Cg").
The following lists the highlights of the Feasibility Study:
- Average annual production of 54,600 tonnes of graphite flakes
over a 29-year mine life
- Proven & probable reserves of 42.0Mt @ 4.17% Cg
- Capital costs of $123 million
("M") including a power plant of $5.8M, concentrate transport equipment of
$3.6M, and contingency of
$12M
- Added flexibility of the plant to process soft saprolite and
fresh rock, provides optionality and the ability to expand the
production profile
- Average operational costs of $470/tonne ("t") and $38/t of transport. For the first 16 years of
production, the average operational costs are $447/t.
- Pre-tax NPV(8%) of $277M and
internal rate of return ("IRR") of 28%
- Post-tax NPV(8%) of $159M and IRR
of 21%
- Average grade of graphite flakes over 95%
- A low strip ratio of 0.69
This video is a flyby simulation of the project layout.
"These results are the culmination of many months of studies to
de-risk the project and add to its robustness" said Ugo Landry-Tolszczuk, President and Chief
Operating Officer of SRG. "The economic highlights present a highly
profitable business using reasonable estimates for graphite selling
price. Basic engineering will focus on improvements in the
front-end of the plant, tailings management, and reducing the
mining footprint."
A technical report detailing the completed feasibility study
in accordance with National Instrument (NI) 43 – 101 guidelines
will be filed and available on SEDAR within 45 days from
July 4, 2019. The effective date of
the technical report is June 18,
2019.
Commercial Sales, Revenues & Project Economic
Sensitivities
Over the life of the mine, the Lola project will produce an
average of 54,600 tonnes of saleable graphite flakes per year. At
an average sale price of $1,321/t,
this represents $72.2M annual revenue incurring average
operating costs of $508/t
representing $27.7M annually. Given
the volatility of graphite prices in recent years and the bilateral
nature of sales contracts, a sensitivity analysis of the project's
economics is presented below in Table 1.
Table
1 Project economics sensitivity analysis
|
|
LOM Average Sale
Price ($/t)
|
1,056
|
1,189
|
1,3211
|
1,453
|
1,585
|
Average annual
revenue (million)2
|
57.8
|
65.0
|
72.2
|
79.5
|
86.7
|
Pre-tax
returns
|
Average annual cash
flow (million) 2
|
25.6
|
32.9
|
40.1
|
47.3
|
54.6
|
NPV (million) @ 8%
discount
|
135
|
206
|
277
|
348
|
420
|
IRR (%)
|
18.5%
|
23.4%
|
28.1%
|
32.6%
|
36.9%
|
Payback
(years)
|
5.0
|
4.0
|
3.4
|
3.0
|
2.7
|
Post-tax
returns
|
Average annual cash
flow (million) 2
|
17.4
|
22.2
|
27.0
|
31.8
|
36.6
|
NPV (million) @ 8%
discount
|
64
|
111
|
159
|
206
|
253
|
IRR (%)
|
13.7%
|
17.6%
|
21.2%
|
24.6%
|
27.8%
|
Payback
(years)
|
5.8
|
4.8
|
3.9
|
3.6
|
3.2
|
1 Base
case
2 Does not include years 1 and 29 as they do not
represent full production
|
Mineral Resource Update
The resource estimate was established using data from boreholes
drilled and sampled up to December 1,
2018. The total resource estimate of the Lola Project
includes 6.84Mt grading 4.39% Cg, indicated resources of 39.2Mt
grading 4.04% Cg, and inferred resources of 4.25Mt grading 3.75%
Cg. The resource estimate has been prepared using a cut-off grade
of 1.65% Cg, and has an optimized physical pit shell constrained at
$1,400/t of concentrate. Figure
1 depicts the resource location which, represents
approximately 40% of the deposit outline.
The mineral resources update was estimated as of June 18, 2019, in accordance with the
definitions adopted by the Canadian Institute of Mining, Metallurgy
and Petroleum and incorporated into National Instrument 43-101 –
Standards of Disclosure for Mineral Projects (NI 43-101). The
mineral resources estimate update for the Lola graphite project was
carried out by Desmond Subramani
(Pri. Sci. Nat - 400184/06), Independent QP and Principal Geologist
– Mineral Resource Estimation at Caracle Creek International
Consulting MINRES (Pty) Ltd. (CCIC MINRES).
Mining
The Lola deposit is characterised by its saprolite surface
mineralization, which continues at depth into the fresh rock bed.
For the FS, mining operations considered the mineralized material
contained in the weathered zones (lateritic and saprolitic ore), as
well as the mineralized material contained in the fresh-rock
formation.
This results in a total Mineral Reserves estimate of
approximately 42.0Mt grading 4.17% Cg, and an overall strip ratio
of the operation (all the pits combined) of only 0.69. Figure
2 presents the overall site layout. The table below shows the
proven and probable reserves.
Table
2 Proven & probable reserves
|
|
Category
|
Tonnage
(Mt)1
|
Cg grade
(%Cg)
|
Proven
Reserves
|
6.7
|
4.43%
|
Probable
Reserves
|
35.4
|
4.13%
|
Proven &
Probable Reserves
|
42.0
|
4.17%
|
1: The totals may not
add up due to rounding.
|
The average grade fed to the processing plant over the 29-year
mine life is 4.17% Cg, and the total material mined per year is
2.5Mt (ore and waste). Mining costs were established at
$2.23/t material moved, considering
pit design and access roads.
Table
3 Mining highlights
|
|
Mining costs ($/t
material moved)
|
2.23
|
Average graphite
grade (% Cg)
|
4.17%
|
Stripping ratio
(waste/ore)
|
0.69
|
Average ore material
mined per year (t/y)
|
1,450,000
|
Life of mine
(years)
|
29 years
|
Process
The mineral processing plant consists of a crushing area and a
concentrator where material beneficiation and concentrate
dewatering, screening, and packaging takes place.
The process flowsheet includes crushing, scrubbing and grinding,
rougher flotation, polishing, and cleaner flotation. The back end
of the concentrator includes tailings and concentrate thickening,
concentrate filtration and drying, dry screening and bagging of
graphite products, and material handling.
All the tailings from the concentrator will be thickened and
pumped to the tailings ponds. Reclaiming water from the tailings
ponds has been considered in the process design to minimize fresh
water makeup to the concentrator.
The graphite concentrate will be recovered by a conventional
flotation process. Saprolite ore beneficiation process has an
overall graphite recovery of 73.1%, producing a graphite
concentrate grade of 95.4 % Cg. The addition of up to 45% of
fresh rock in the feed blend improves the overall graphite recovery
to 84.2%. A suitable process flowsheet able to handle saprolite as
well as a feed blend with fresh rocks has been developed for the
feasibility study.
Over the life of the mine, the plant will produce graphite
concentrate divided into four (4) standard-size fractions: +48
mesh, -48+80 mesh, -80+100 mesh and -100 mesh presented in Table 5.
Figure 3 depicts the simplified flowsheet.
Table
4 Process highlights
|
|
Processing costs ($/t
plant feed) -100% Saprolite feed
|
8.91
|
Processing costs ($/t
plant feed) - blend of 55% Saprolite / 45% Fresh rocks
feed
|
10.86
|
Average concentrate
grade (%Cg)
|
95.4%
|
Graphite plant
recovery based on 100% Saprolite feed
|
73.1%
|
Graphite plant
recovery based on blend of 55% Saprolite / 45% Fresh rocks
feed
|
84.2%
|
Table
5 Size fraction profile & grade
|
|
Size Fraction
(mesh)
|
LoM
Expected
Distribution
(%)
|
Grade
(%Cg)
|
+ 48
|
16.6
|
97.0
|
- 48 + 80
|
27.5
|
96.0
|
- 80 + 100
|
8.8
|
94.5
|
- 100
|
47.1
|
94.9
|
Total
|
100.0
|
95.4
|
Capital & Operating Costs
The capital costs for the project are presented below in Table
6. The capital costs shown include the Company's assumed mining
operations, graphite flake transport from-plant-to-port operations,
and production of its own power using generators. All three of
these items could be contracted to third parties. The average
annual sustaining capital expenditure over a 29-year period is
$4.4M.
Table
6 Capital cost summary
|
|
Capital
Costs
|
Initial
($M)
|
Mining
|
9.3
|
Process
|
31.5
|
Tailings
|
8.4
|
Site
infrastructure
|
11.8
|
Off-site
infrastructure
|
1.4
|
Preliminary &
general
|
16.6
|
Sub-total
|
79.2
|
Power
plant
|
5.8
|
Graphite transport
equipment
|
3.6
|
Total Direct
Costs
|
88.5
|
EPCM
|
10.3
|
Pre-production
|
5.6
|
Other indirect
costs
|
0.7
|
Total Indirect
Costs
|
16.6
|
Contingency
|
12.4
|
Owner's
costs
|
5.5
|
Total
Costs 1
|
123.1
|
1: The totals may not
add up due to rounding.
|
The operating costs presented in Table 7 indicate the
average operating costs, including graphite flake transport from
mine-site to the port of Monrovia
as well as port fees. These operating costs also assume the Company
will mine and produce its own power using generators.
The average operating costs without transport for the first 16
years is $447/t, increasing
thereafter.
Table
7 Operating cost summary
|
|
Operating Costs
Breakdown
|
Average Annual
Costs ($M) 2
|
Average $ per
tonne of concentrate
|
Mining
|
5.9
|
108
|
Process
|
16.1
|
294
|
General and
Administration
|
3.3
|
60
|
Tailings
|
0.4
|
7
|
Total operating
costs
|
25.7
|
470
|
Graphite
Transportation to port
|
2.1
|
38
|
Total OPEX
1
|
27.7
|
508
|
1: The totals may not
add up due to rounding.
2: Excludes the first and last year.
|
Quality Control And Assurance
Qualified Persons ("QP") have reviewed and verified that the
technical information with respect to the FS contained in this
press release is accurate, and have approved the written disclosure
of such information. For readers to fully understand the
information in this press release, they should read the Technical
Report in its entirety when it is available on SEDAR, including all
qualifications, assumptions, and exclusions that relate to the
information to be set out in the Technical Report, which qualifies
the technical information contained in the Technical Report. The
Technical Report is intended to be read as a whole, and sections
should not be read or relied upon out of context.
The QPs who will prepare the Technical Report are:
- DRA: Silvia Del Carpio, P.Eng.,
MBA (Project Manager and Financial Modelling), Yves Buro, P. Eng. (Geology), Patrick Perez, P.Eng. (Mineral Reserves and
Mining), Volodymyr Liskovych, PhD, P.Eng. (Metallurgy),
William Shadeed, P.Eng.
(Processing)
- CCIC: Desmond Subramani, Pri.
Sci. Nat. (Mineral Resources)
- MDEng: Kathy Kalenchuk, PhD,
P.Eng. (Geotechnical Design)
- BBA: Luciano Piciacchia, PhD,
P.Eng. (Water Management, Closure and Rehabilitation Plan)
- David Sims Inc.: David Sims,
Geo, P. Geo (Hydrogeology)
- Epoch: Guy Wiid, Pr.Eng. C.Eng, George
Papageorgiou, PhD, MSc, BSc Eng. (Tailings Design)
By virtue of education and relevant experience, the
aforementioned are independent "Qualified Persons" for the purpose
of NI 43 - 101. Other than as set forth above, all scientific and
technical information contained in this press release has been
reviewed, verified, and approved by Raphaël Beaudoin, P. Eng.,
Director of Operations and a Qualified Person for SRG under NI
43 - 101.
About DRA/Met-Chem
Met-Chem, a division of DRA Americas Inc., was originally
established in 1969 as a consulting engineering company,
headquartered in Montreal, and
provides a wide range of technical and engineering services. DRA is
a multidisciplinary global engineering group that delivers mining,
mineral processing, energy, water treatment and infrastructure
services from concept to commissioning and into operation. DRA has
offices in Africa, Australia, Canada, China
and the United States.
About SRG Mining
SRG Mining is a Canadian-based mining company focused on
developing the Lola graphite deposit located in the Republic of
Guinea, West Africa. SRG is committed to operating in
a socially, environmentally, and ethically responsible manner.
Neither the TSXV nor its Regulation Services Provider (as
that term is defined in the policies of the TSXV) accepts
responsibility for the adequacy or accuracy of this
release.
Forward-Looking Statements
This press release contains "forward-looking information" within
the meaning of Canadian securities legislation. All information
contained herein that is not clearly historical in nature may
constitute forward-looking information. Generally, such
forward-looking information can be identified by the use of
forward-looking terminology such as "will", "continue", "provide",
"present", "reasonable", "established", "has", "demonstrate",
"potential", or variations of such words and phrases or state that
certain actions, events or results "may", "could", "would" or
"might". Forward-looking information is subject to known and
unknown risks, uncertainties and other factors that may cause the
actual results, level of activity, performance or achievements of
the Company to be materially different from those expressed or
implied by such forward-looking information, including but not
limited to: (i) volatile stock price; (ii) the general global
markets and economic conditions; (iii) the possibility of
write-downs and impairments; (iv) the risk associated with
exploration, development and operations of mineral deposits
including the accuracy of the current mineral reserve and mineral
resource estimates of the Company (including, but not limited to,
ore tonnage and ore grade estimates) and mine plans for the
Company's mining operations (including, but not limited to,
throughput and recoveries being affected by metallurgical
characteristics); (v) the risk associated with establishing title
to mineral properties and assets including permitting, development,
operations and production from the Company's operations being
consistent with expectations and projections; (vi) fluctuations in
commodity prices and other risks and factors described or referred
to in the section entitled "Risk Factors" in the MD&A of the
Company and which is available at www.sedar.com, all of which
should be reviewed in conjunction with the information found in
this news release
Forward-looking information is based on assumptions management
believes to be reasonable at the time such statements are made,
including but not limited to, the capacity to produce an average
production of 54,600 tonnes of graphite flakes per year over a
29-year mine life, the Capital costs of being only $123 million, the capacity of the design to
provide added flexibility of the plant to process soft saprolite
and fresh rock, the capacity to provide optionality and the ability
to expand production profile, the capacity of the average
operational costs to be $470 per
tonne and $38/t of transport, the
Pre-tax NPV(8%) of being $277M and
achieving internal rate of return ("IRR") of 28%, and Post-tax
NPV(8%) of $159M and IRR of 21% as
well as the continued exploration activities and no material
adverse change in mineral prices. Although the Company has
attempted to identify important factors that could cause actual
results to differ materially from those contained in the
forward-looking information, there may be other factors that cause
results not to be as anticipated, estimated or intended. There can
be no assurance that such forward-looking information will prove to
be accurate, as actual results and future events could differ
materially from those anticipated in such forward-looking
information. Such forward-looking information has been provided for
the purpose of assisting investors in understanding the Company's
business, operations and exploration plans and may not be
appropriate for other purposes. Accordingly, readers should not
place undue reliance on forward-looking information.
Forward-looking information is given as of the date of this press
release, and the Company does not undertake to update such
forward-looking information except in accordance with applicable
securities laws.
For additional information, please visit SRG's website at
www.srgmining.com.
SOURCE SRG Mining Inc.