QC Copper Announces Publication of Its Updated Mineral Resource Estimate and Technical Report
QC Copper Announces Publication of Its
Updated Mineral Resource Estimate and
Technical Report
Toronto, Ontario--(Newsfile Corp. - February 23, 2024) - QC Copper and Gold Inc. (TSXV: QCCU) ("
QC
Copper
" or the "
Company
") is pleased to announce the publication of its updated Technical Report for
the pit-constrained Mineral Resource Estimate (MRE) on the Opemiska Deposit which the Company
announced on January 8, 2024. The Technical Report is available on the Company's website and
SEDAR+.
Highlights include:
Mineral Resource
in Measured and Indicated category of 2.09 billion lbs of copper equivalent
contained in 97.5 million tonnes or
1.75 billion lbs of copper,
845 thousand ounces of gold,
5.5 million ounces of silver
Additional Inferred Mineral Resource of 157 million lbs of copper equivalent contained in
11.0 million tonnes,
127 million lbs of copper,
70 thousand ounces of gold
907 thousand ounces of silver
Grade and Mineral Resource Increase:
Achieved a remarkable 26% increase in the Copper
total grade, an 11% increase in CuEq total grade, and a 16% rise in CuEq pounds compared to
the 2021 Measured and Indicated Mineral Resource Estimate.
Significant Starter Pit:
A sizable potential starter pit comprises 19.1 million tonnes at 1.1% Cu-
Eq, all in the Measured and Indicated Mineral Resources categories.
Favorable Metallurgy:
Preliminary test work has confirmed very favorable metallurgical
characteristics.
Expansion Potential:
Confirmed potential for Opemiska's expansion within the pit, at depth with
an out-of-pit (underground) mining scenario, and growth of the satellite pits to the east, as well as in
close proximity to the Cooke and Robitaille Mines.
This updated MRE reflects a significant increase in grade and contained metal, attributed to extensive
drilling and our technical team's two-year recompilation and reinterpretation of geological data. The
Company also underscores that the qualitative improvements in the database enhance our confidence in
the project's geological model and, by extension, the Mineral Resource Estimate.
Table 1: Opemiska Deposit Summary of Pit Constrained Mineral Resources, 0.15% CuEq cut-
off and Out-of-Pit Mineral Resources, 0.8% CuEq cut-off
(
see footnotes
1-10)
Pit
Constrained
Tonnes
Cu
Cu
Ag
Ag
Au
Au
CuEq
CuEq
0.15% CuEq
Cut-Off
(k)
(%)
(M lbs)
(g/t)
(koz)
(g/t)
(koz)
(%)
(M lbs)
Measured
52,704
0.77
892
1.65
2,800
0.30
500
0.94
1,091
Indicated
34,629
0.77
586
1.31
1,458
0.24
261
0.90
690
M+I
87,333
0.77
1,478
1.52
4,258
0.27
762
0.93
1,780
Inferred
9,791
0.48
104
2.19
689
0.18
55
0.59
128
Out of Pit
Tonnes
Cu
Cu
Ag
Ag
Au
Au
CuEq
CuEq
0.8% CuEq
Cut-Off
(k)
(%)
(M lbs)
(g/t)
(koz)
(g/t)
(koz)
(%)
(M lbs)
Measured
4,064
1.24
111
3.81
498
0.32
42
1.44
129
Indicated
6,067
1.18
157
3.92
764
0.22
42
1.32
176
M+I
10,130
1.20
268
3.87
1,261
0.26
83
1.37
305
Inferred
1,162
0.89
23
5.84
218
0.40
15
1.15
29
Total
Tonnes
Cu
Cu
Ag
Ag
Au
Au
CuEq
CuEq
0.15% & 0.8%
CuEq Cut-Off
(k)
(%)
(M lbs)
(g/t)
(koz)
(g/t)
(koz)
(%)
(M lbs)
Measured
56,767
0.80
1,003
1.81
3,297
0.30
542
0.97
1,219
Indicated
40,696
0.83
743
1.70
2,222
0.23
303
0.97
866
M+I
97,463
0.81
1,746
1.76
5,519
0.27
845
0.97
2,085
Inferred
10,953
0.53
127
2.58
907
0.20
70
0.65
157
1
.
Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability.
2
.
The estimate of Mineral Resources may be materially affected by environmental, permitting, legal, title, taxation, socio-
political,
marketing, or other relevant issues.
3
.
The Inferred Mineral Resource in this estimate has a lower level of confidence than that applied to an Indicated Mineral Resource and
must not be converted to a Mineral Reserve. It is reasonably expected that the majority of the Inferred
Mineral Resource could potentially
be upgraded to an Indicated Mineral Resource with continued exploration.
4
.
The Mineral Resources were estimated in accordance with the Canadian Institute of Mining, Metallurgy and
Petroleum (CIM), CIM
Standards on Mineral Resources and Reserves, Definitions (2014) and Best Practices Guidelines (2019) prepared by the CIM Standing
Committee on Reserve Definitions and adopted by the CIM Council.
5
.
Metal prices used were US4.00/lb Cu and US$1,875/oz Au, US$24/oz Ag and 0.76 CDN$/US$ FX. Cu, Au and Ag process recovery and
smelter payable were 91%, 72% and 72% respectfully. Open pit mining cost was C$2.50/t, processing C$14/t, G&A C$2.25t. Out of pit
mining costs were C$68/t.
6
.
Pit slopes were 50 degrees in rock and 30 degrees in overburden.
7
.
Historical mined volumes were depleted from the blocks to report the correct tonnages and metal content of the remaining high-grade vein
material.
8
.
CuEq % = Cu % + (Au g/t x 0.54) + (Ag g/t x0.007.
9
.
Out-of-pit Mineral Resources were selected which exhibit continuity and reasonable potential for extraction by the long hole underground
mining method. Narrow strings of grade blocks and orphaned blocks were depleted.
10
.
Totals may not sum due to rounding.
Figure 1: Graphical Depiction of Opemiska Mineral Resource and Constraining Pit Shell
To view an enhanced version of Figure 1, please visit:
https://images.newsfilecorp.com/files/9282/198936_f5fb835ff4158a33_002full.jpg
Figure 2: Plan View of Constraining Pit Shell and Potential High-Grade Starter Pit
To view an enhanced version of Figure 2, please visit:
https://images.newsfilecorp.com/files/9282/198936_f5fb835ff4158a33_003full.jpg
Starter Pit
A conceptual starter pit has been calculated for the Opemiska Deposit with 19.1 million Measured and
Indicated tonnes at 1.1% Cu-Eq. A high-grade potential starter pit provides more options in development
scenarios as it allows for a potential short payback period or a staged development scenario, which
potentially improves the project's economics.
Table 2: Opemiska Deposit Summary of Starter Pit Constrained Mineral Resource, 0.15% CuEq
cut-off
Pit
Constrained
Tonnes
Cu
Cu
Ag
Ag
Au
Au
CuEq
CuEq
0.15% CuEq
Cut-Off
(k)
(%)
(M lbs)
(g/t)
(koz)
(g/t)
(koz)
(%)
(M lbs)
Measured
11,684
0.81
207
1.96
736
0.38
142
1.02
264
Indicated
7,370
0.94
153
2.40
569
0.43
101
1.19
193
M+I
19,054
0.86
360
2.13
1,306
0.40
243
1.09
456
Out-of-Pit Mineral Resource
A significant out-of-pit Measured and Indicated Mineral Resource has been added to the pit-constrained
Opemiska Deposit with 268 million lbs of copper, 83 thousand ounces of gold, and 1.3 million ounces of
silver, or 305 million lbs of copper equivalent contained in 10.1 million tonnes. Additionally, there are out-
of-pit Inferred Mineral Resources of 23 million lbs of copper, 15 thousand ounces of gold, and 218
thousand ounces of silver, or 29 million lbs of copper equivalent contained in 1.2 million tonnes.
Geological Data and Reinterpretation
The Mineral Resource Estimate on the Opemiska Deposit is based on a drill hole database containing
16,570 surface and underground diamond drill holes totalling 1,042,668 metres of core drilling and
348,492 assays. All mine-era drilling was converted from mine grid to UTM using transformation
equations calculated by a land surveyor based on differential GPS measurements of many located drill
casings.
All historical mine excavations and stopes were digitized in mine grid coordinates from numerous maps,
vertical and longitudinal sections, and solid wireframes were built and converted to UTM coordinates. All
stopes were digitized down to the bottom of the Perry (820m depth) and Springer (715 metres) mines
and formed the basis of the reinterpretation of the geology of the Opemiska Deposit. Completely new
mineralized envelopes were defined using a manually adjusted implicit modelling technique for the
deposit based on a structural model defined in 2022 in areas of historical mining and areas of known
mineralization that could not be mined underground. As a result, the Deposit tonnage decreased
somewhat. However, some out-of-pit Mineral Resources were defined at a 0.8% Cu-eq cut-off that
identified a significant tonnage beneath the conceptual pit that will be the object of further drilling along
with some satellite zones east of the pit and on the adjacent Cook-Robitaille Option Property.
Next Steps:
Further Drilling in-pit and near-pit and Preliminary Economic Analysis
QC Copper has focused all its efforts on finalizing a high-quality mineral resource on the Springer and
Perry Mines, to the near exclusion of other objectives. However, the technical team has identified
several
target areas within the conceptual pit that became apparent during the work that led to the current MRE,
but they were not tested due to time constraints. Drilling of these targets is expected to add tonnes and
metal to the Mineral Resources beyond what is being published at this time. Moreover, some preliminary
drilling on the Eastern Veins in 2022 and early 2023 produced good results, suggesting that modeling
these areas will lead to some modest pits at economically viable grades. The Company has proposed
15,000 metres of drilling within the confines of the conceptual pit and near the pit on the Bouchard and
McNichols Veins. In addition, the Company has recently completed a drill program (assays pending) on
the Cooke-Robitaille area of the Property and will undertake a compilation of historical drill results and
integrate the current drilling result to define a drilling program that will hope to define additional open pit
Mineral Resources that will add to the Opemiska Project.
About the Opemiska Copper Complex
The Opemiska Copper Complex is adjacent to Chapais, Quebec, within the Chibougamau district.
Opemiska is also within the Abitibi Greenstone Belt and within the boundaries of the Province of
Quebec's Plan Nord, which promotes and funds infrastructure and development of natural resource
projects. The 100%-QC Copper owned Opemiska Property (excluding the the Cooke-Robitaille option
claims) covers 24,544 hectares and includes the past-producing Springer, Perry, Robitaille and Cooke
Mines, previously owned and operated by Falconbridge between 1953-1991. The project hosts excellent
on-site infrastructure, including a power station and direct access to Highway 113 and the Canadian
National Railway. The Cooke and Robitaille Mines are situated on the Cooke-Robitaille option claims
and QC Copper is working through its obligations regarding the option and has the financial resources
and expects to exercise the option in due course. All the other claims that comprise the Greater
Opemiska Project are wholly-owned by QC Copper and Gold Inc.
The estimate of Mineral Resources may be materially affected by risks set forth in any QC Copper and
Gold's Management Discussion and Analysis Reports and other filings made with Canadian securities
regulatory authorities and available at
www.sedarplus.ca
.
QP Statement
The technical information contained in this news release has been reviewed and approved by Charles
Beaudry, P.Geo and géo., Director and Vice President Exploration for QC Copper & Gold, and Eugene
Puritch, P.Eng., FEC, CET of P&E Mining Consultants Inc., both Qualified Persons, as defined in
"National Instrument 43-101, Standards of Disclosure for Mineral Projects."
Mr. Puritch is independent of
QC Copper & Gold.
QAQC Statement
All drilling performed by QC Copper and Gold was done mainly using NQ sized drill rods and were
stabilized to minimize deviations. When historical open or backfilled stopes were expected to be
intersected in drilling the holes, they were started in NQ and telescoped to BQ after the stope, or started
in HQ and reduced to NQ and then BQ, when a second stope was encountered to ensure completion of
the drill hole. All drill core is stored in Chapais under constant video surveillance. All pulps and
mineralized rejects have been preserved.
For the exploration undertaken by QC Copper & Gold, all assay batches are accompanied by rigorous
Quality Assurance procedures, including the insertion of certified reference materials and blanks and
duplicate verification assays in a secondary laboratory. Quality Control results, including the laboratory's
control samples, are evaluated immediately upon reception of batch results and corrections are
implemented immediately if necessary. All drill collars since 2019 were positioned in UTM coordinates
and post-drilling surveyed using differential GPS instrumentation. The historical mine drill holes were
surveyed on surface and underground at the time of drilling by mine personnel using conventional
surveying methods. The drill hole collars for 2019 were oriented by compass but since 2021 accurate
non-magnetic orientation of collars was achieved using the gyroscopic Azimuth Aligner by Minnovare.
Downhole deviation surveys were done initially with Flex-it instrument by Reflex instrument at 30m
intervals and from 2021 with the Champ Gyro instrument manufactured by Axis Mining Technology. All
erroneous azimuths caused by excessive magnetism or other causes were purged from the database. A
systematic bulk density measurement program using the water displacement method was implemented
to measure the bulk density of all rock types. A total of 1,178 bulk density measurements were done
since the start of drilling in 2019 drilling program, including 1,028 measurements for the Initial Mineral
Resource Estimate ("IMRE") in 2021 and an additional 150 measurements post IMRE. No bulk densities
are available for the vendor drill holes or historical mine drill holes. A specific susceptibility measurement
protocol was also implemented to estimate the relative abundance of magnetite in the Ventures Sill's
variably magnetic rocks. A focused optical and acoustic televiewer surveying program was done at the
end of the program to obtain correctly oriented structural measurements.
For the Mineral Resource database, additional QAQC measures included drill core duplicates. For the
historical drilling assay verification, measures comprised drill core resampling for the holes drilled by the
vendor in 2010, 2015 and 2016 and for the historical Falconbridge mine era drilling where no drill core
remains, a number of holes were collared near the location and orientation of mine-era surface drill holes
and results compared with the assays from the mine. The results of these measurements confirm that the
assays from the vendor period are equivalent to QC Copper assays and that the mine era assays are
demonstrably equivalent for the range of values from the lower detection limit up to approximately 2.0%
Cu which represents over 90% of the assays in the Mineral Resource database. Above this grade, the
number of samples in the twinned data is small, and the variance is high, making it challenging to
compare datasets.
It is challenging to obtain good validation of historical assays using the twin-hole drilling method for the
mine drill holes that were not sampled extensively and were sampled only where mineralization was
visible. Further validation of historical mine assays will require high-density drilling in small zones that
have not been mined, however, were drilled sufficiently by Falconbridge to allow comparison of assay
tenor, independent from the mine assays and from QC Copper drilling in the same volume. The evidence
from twin drilling, albeit imperfect, supports the interpretation that the assays for the bulk of the mine
drilling are comparable to modern-day QAQC-controlled assays. After reviewing available data, the
assays undertaken by QC Copper, the vendor, and the mine are considered acceptable for estimating a
Mineral Resource on the Opemiska Project.
For information and updates on QC Copper and Gold, please visit:
www.qccopper.com
And please follow us on Twitter
@qccoppergold
To speak to the Company directly, please contact:
Stephen Stewart, Chief Executive Officer
Phone: 416.644.1567
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the
TSX Venture Exchange policies) accept responsibility for this release's adequacy or accuracy.
Certain information in this press release may contain forward-looking statements. This information is
based on current expectations subject to significant risks and uncertainties that are difficult to predict.
Actual results might differ materially from results suggested in any forward-looking statements. QC
Copper and Gold Inc. assume no obligation to update the forward-looking statements or to update the
reasons why actual results could differ from those reflected in the forward-looking statements unless
and until required by securities laws applicable to QC Copper and Gold Inc. Additional information
identifying risks and uncertainties is contained in QC Copper and Gold Inc. filings with Canadian
securities regulators, which filings are available under QC Copper and Gold Inc. profile at
www.sedar.com
.
To view the source version of this press release, please visit
https://www.newsfilecorp.com/release/198936