Doré Copper Reports Positive 2020 Drilling Results from Joe MANN Property
PRESS RELEASE
DORÉ COPPER REPORTS POSITIVE 2020 DRILLING RESULTS FROM JOE MANN
PROPERTY
• 10.34 g/t GOLD AND 0.27% COPPER OVER 4.0 METERS AT WEST ZONE
• 10.00 g/t GOLD OVER 3.0 METERS AT FAR WEST ZONE
Toronto, Ontario – January 25, 2021 – Doré Copper Mining Corp. (the " Company" or "Doré Copper")
(TSXV: DCMC; OTCQB: DRCMF; FRA: DRM) is pleased to announce results from its 2020 drilling program
at the Joe Mann property located approximately 60 kilometers south of Chibougamau, Québec.
The Joe Mann property comprises 1,990 hectares and includes the Joe Mann former producing mine, which
is under an option agreement announced on January 2, 2020. The Joe Mann mine was one of the highest-
grade gold mines in Canada, producing 1.2 million ounces of gold at a grade 8.26 g/t between 1956 and
2007. It is located approximately 60 kilometers south of the Company’s Copper Rand mill (2,700 tpd), where
the ore from Joe Mann was processed from 2004 until its closure in 2007.
2020 Drilling Highlights
• West Zone: 4.0 meters of 10.34 g/t Au and 0.27% Cu in hole JM-20-06W3, extending mineralization
100 meters down plunge from historical intercepts of 5.0 meters of 10.3 g/t Au, 3.2 meters of 16.1 g/t
Au, and 3.3 meters of 10.4 g/t Au
• Main Zone: 1.3 meters of 6.32 g/t Au and 0.52% Cu, including 0.45 meter of 17.7 g/t Au and 1.23%
Cu in hole JM 20-02A, confirming the extension of the Main zone below previously mined levels. This
intercept is located 120 meters up-dip from historical intercept of 1.88 meters of 26.66 g/t Au and 110
meters from historical intercept of 3.02 meters of 30.3 g/t Au.
• Far West Zone: 3.0 meters of 10.00 g/t Au in hole JM-20-10, approximately 900 meters along strike
from the western extent of the Joe Mann mine
Ernest Mast, President and CEO of Doré Copper stated , “Our first drilling program at Joe Mann was
successful in demonstrating the high-grade downdip extension of the West Zone, the continuity of the Main
Zone and the high-grade potential of the Far West Zone. These results support additional exploration efforts
on the property and provide a high-grade gold project that can be paired with the high-grade copper Corner
Bay project for our hub-and-spoke strategy. The Company is planning a follow up drill ing program at Joe
Mann later in 2021 and has now resumed its drilling activities at Corner Bay with a 6,000 meter program.
In 2021, the Company also plans to test other exploration targets in the Lac Doré/Chibougamau mining
camp. An update to the current mineral resource estimate is expected in Q2 2021 followed by a Preliminary
Economic Assessment (“PEA”) in H2 2021 to support a hub-and-spoke operation using our existing 2,700
tpd mill with Corner Bay as the primary feed to the mill.”
2020 Joe Mann Drilling Program
The Company drilled a total of 8,343 meters testing the former producing Joe Mann mine Main Zone and
West Zone below the underground workings, the Far West Zone and the South South Zone (Figure 1). The
West Zone is 100% owned by the Company starting at 842 meters below surface (dipping into the property
boundary) and the other areas are part of the option agreement with Ressources Jessie Inc. The results
from the drilling program are summarized below in Table 1.
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West Zone (Figure 2)
The West Zone was mined from 2004 to 2007 up to a depth of 890 meters and has approximately 100
historic intercepts drilled from underground.
The Company drilled four (4) holes, one near -vertical hole (JM -20-06) and three wedges from that hole
(with two using directional drilling) (JM-20-06W1, JM-20-06W2 and JM-20-06W3) to test the extension of
the West Zone at a depth of 270 to 400 meters below the mined area . All four (4) holes intersected
mineralized shear zones.
Hole JM -20-06W3 inte rsected 4.0 meters of 10.34 g/t Au and 0. 27% Cu and at a further 11 meters
downhole intersected 0.5 meter of 13.70 g/t Au and 0.42% Cu . These two intercepts are located 100
meters down plunge from the historical intercepts of 5.0 meters of 10.3 g/t Au (hole EW78_D), 3.2 meters
of 16.1 g/t Au (hole EW79_D), and 3.3 meters of 10.4 g/t Au (hole EW57_D). It is interpreted that both
JM-20-06 and JM-20-06W1 intercepted the structure to the west of the ore plunge structure and therefore
did not carry high-grade gold mineralization. Hole JM -20-06W2 intersected the well-defined West Zone
structure a further 100 meters down dip from hole JM-20-06W3, but with weaker gold mineralization: 1.35
meters of 3.29 g/t Au.
Main Zone (Figures 3 and 4)
The Main Zone was drilled with two (2) holes to test the continuity of the gold mineralization identified with
two high-grade historical intercepts that are 150 meters apart and located approximately 170 meters
beneath the lowest mining level (1,050 meters) of the Joe Mann mine. These two prior holes were drilled
in 2008 after the mine had ceased operations and intersected 3.02 meters of 30.3 g/t Au and 1.30% Cu
(hole EE-188) and 1.88 meters of 26.66 g/t Au and 0.40% Cu (hole EE-189B). The Company collared the
holes on land part of a JV between Ressources Jessie (65%) and SOQUEM (35%) and drilled south
towards the Main Zone. The holes encountered strong deviation and directional drilling was used to guide
the holes to the target areas.
Hole JM-20-02A intersected the Main Zone shear zone approximately 120 meters up-dip from these two
historical intercepts mentioned above. The shear zone returned two intercepts of 1.3 meters of 6.32 g/t Au
and 0.52% Cu, including 0.45 meter of 17.7 g/t Au and 1.23% Cu; and 5.95 meters of 2.29 g/t Au,
including 1.7 meters of 5.64 g/t Au. In addition, this same hole intersected 0.4 meter of 33.2 g/t Au in an
unidentified zone above the Main Zone. The second hole (JM-20-07) intersected the Main Zone at
approximately 100 meters below hole EE-189B with an intercept of 2.5 meters of 1.87 g/t Au within a
wider, weakly mineralized shear zone of 20 metres.
Far West Zone (Figure 5)
The Far West Zone is located approximately 900 meters west along strike from the westernmost part of the
Main Zone of the Joe Mann mine. Historically, the Far West zone was accessed by the Uddlen ramp to the
west and an exploration drift at a depth of 137 meters. The Far West Zone (the horse tailing of the Joe
Mann structure at the west end) is characterized by very heterogeneous gold distribution, nuggety in nature,
and historically has returned some shallow, very high-grade gold intercepts including: 3.81 meters of 20.8
g/t Au (hole H214), 3.26 meters of 107.0 g/t Au (hole H118), and 3.53 meters of 39.2 g/t Au (hole H258).
The Company completed four (4) holes totaling 1,230 meters with the objective of confirming high-grade
mineralized zones. The drilling confirmed the nu ggety nature of the Far West Zone with three holes
intersecting gold mineralization. The best intercept s returned 8.5 meters of 3.92 g/t Au (including 3.0
meters of 10.0 g/t Au, which included 0.7 meter of 35.2 g/t Au), and 0.5 meter of 9.2 g/t Au in hole JM-
20-10. Other highlights included: 0.4 meter of 8.45 g/t Au, 0.6 meter of 5.79 g/t Au, and 0.4 meter of 40.8
g/t Au and 0.60% Cu in hole JM-20-11 and 0.45 meter of 5.97 g/t Au in hole JM-20-09.
The Company is embarking on a more detailed review of the new and historical data of the Far West Zone
to better understand the nuggety nature of the mineralization prior to determining the next steps for future
exploration plans. The remaining half of the core from these holes will be sent to the laboratory for screen
metallics and leachwell analysis to better understand the heterogeneity of the mineralization (nugget effect).
South South Zone
The South South zone is approximately 300 meters south of the Main Zone. The structure is exposed at
surface and historically 14 holes were drilled over a strike length of approximately 1 kilometer. The
Company completed three (3) holes totaling 402 meters on the west side of Lake Norhart to follow up on
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an historical intercept of 0.8 meter at 32.0 g/t Au at a downhole depth of 18 meters (hole H349). The results
indicated weak gold mineralization near-surface and did not replicate the high-grade gold intercept.
Table 1. Joe Mann Property – Summary of 2020 Drilling Program Results
Hole # Zone From
(m)
To
(m)
Width
(m)
Au
(g/t)
Cu
(%)
JM-20-02A Main (unidentified) 1,213.3 1,213.7 0.40 33.2 0.03
Main 1,258.35 1,259.65 1.3 6.32 0.52
including 1,258.35 1,258.8 0.45 17.7 1.23
Main 1,276.5 1,282.45 5.95 2.29 0.04
including 1,276.5 1,278.2 1.7 5.64 0.02
JM-20-03 South South 18.0 24.0 6.0 0.62 0.01
JM-20-04 South South NSI
JM-20-05 South South 16.6 21.0 4.4 0.80 0.02
South South 129.0 130.8 1.8 1.92 0.04
JM-20-06 West (unidentified) 906.0 907.0 1.0 4.63 0.03
JM-20-06W1 West (unidentified) 940.8 941.5 0.7 4.34 0.15
West (unidentified) 862.7 866.7 4.0 3.60 0.01
JM-20-06W2 West 1,241.6 1,242.95 1.35 3.29 0.04
JM-20-06W3 West 1,174.4 1,178.4 4.0 10.34 0.27
West 1,188.7 1,189.2 0.5 13.70 0.42
JM-20-07 Main 1,357.9 1,360.4 2.5 1.87 0.02
JM-20-08 Far West NSI
JM-20-09 Far West 171.5 179.9 1.9 0.60 0.49
Far West 188.55 189.0 0.45 5.97 0.20
JM-20-10 Far West 204.5 213.0 8.5 3.92 0.08
including 206.5 209.5 3.0 10.0 0.08
incl. 208.8 209.5 0.7 35.2 0.11
Far West 235.5 236.0 0.5 9.20 0.13
JM-20-11 Far West 120.4 120.8 0.4 8.45 0.04
Far West 263.6 264.2 0.6 5.79 0.19
Far West 305.5 305.9 0.4 40.8 0.60
Note: NSI indicate no significant intercepts. True widths are estimated to be 57-68% for West Zone and 75% for Main
Zone. No true width could be determined for the Far West Zone or the South South zone.
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Figure 1. Joe Mann Property – 2020 Drill Hole Location Map
Figure 2. Joe Mann West Zone Long Section (starting at 400 meters below surface)
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Figure 3. Joe Mann Main Zone Long Section
Figure 4. Joe Mann Main Zone Cross-Section
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Figure 5. Joe Mann Far West Zone Cross-Section
Drilling and Quality Control
The Company is using Miikan Drilling as the drilling contractor. Miik an is a joint venture between
Chibougamau Diamond Drilling Ltd., the First Nation community of Ouje-Bougoumou and the First Nation
community of Mistissini, both located in the Eeyou Istchee territory.
Sample preparation and assays are done at SGS lab in Val-d’Or, Québec. Samples were weighed, dried,
crushed to 75% passing 2 mm, split 250 g, pulverized to 85% passing 75 microns. Samples were then fire
assayed for Au (30 g) and sodium peroxide fusion ICP-MS finish for 34 elements.
The Quality Assurance and Quality Control (QA/QC) is done by Doré Copper geologists with oversight from
the Exploration Manager. The check samples (blanks and standards – 4% of total samples with another
2% of core duplicates) that were inserted into the sample batches are verified against their certified values
and are deemed a pass if they are within 3 standar d deviations of the certified value. The duplicates are
evaluated against each other to determine mineralization distribution (nugget effect). If there are large
discrepancies in the check samples, then the entire batch is requested to be re-assayed.
Historical drilling results disclosed in this news release on the Joe Mann property are taken from the
historical database of the Joe Mann mine based on the original drill logs (UG and surface exploration
drilling) and from the NI 43- 101 Technical Report on the Joe Mann Property dated January 11, 20 16 by
Geologica Groupe-Conseil Inc. for Jessie Ressources Inc.
Andrey Rinta, P.Geo., the Exploration Manager of the Company and a "Qualified Person" within the
meaning of National Instrument 43-101, has reviewed and approved the technical information contained in
this news release.
About Doré Copper
Doré Copper Mining Corp. is a copper-gold explorer and developer in the Chibougamau area of Québec,
Canada. Doré Copper has consolidated a large land package in the prolific Lac Doré/Chibougamau mining
camp that has produced 1.6 B lbs of copper and 3.2 M oz of gold. In addition, the Company has optioned
the high-grade Joe Mann gold mine (production 1.17 M oz at 8.26 g/t Au). The land package includes 12
former producing mines, deposits and resource target areas within a 60 kilometer radius of the Company’s
2,700 tpd mill (Copper Rand Mill).
The Company’s current focus is to grow mineral resources and re-develop the high-grade Corner Bay (Cu-
Au), Cedar Bay (Au -Cu), and Joe Mann (Au) deposits. The Company has resumed its drilling program
starting at Corner Bay with approximately 6,000 meters of drilling , which will lead to an updated mineral
resource estimate in Q2 2021 and PEA in H2 2021.
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For further information, please visit the Corporation' s website at www.dorecopper.com or refer to Doré
Copper’s SEDAR filings at www.sedar.com or contact:
Ernest Mast
Laurie Gaborit
President and Chief Executive Officer Vice President, Investor Relations
Phone: (416) 792-2229 Phone: (416) 219-2049
Email: [email protected] Email: [email protected]
Cautionary Note Regarding Forward-Looking Statements
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than statements of historical fact included in this release, including, without limitation, statements regarding the timing
and ability of the Corporation to receive necessary regulatory approvals, and the plans, operations and prospects of
the Corporation and its properties are forward-looking statements. Forward-looking statements are necessarily based
upon a number of estimates and assumptions that, while considered reasonable, are subject to known and unknown
risks, uncertainties and other factors which may cause actual results and future events to differ materially from those
expressed or implied by such forward-looking statements. Such factors include, but are not limited to, actual exploration
results, changes in project parameters as plans continue to be refined, future metal prices, availability of capital and
financing on acceptable terms, general economic, market or business conditions, uninsured risks, regulatory changes,
delays or inability to receive required regulatory approvals, health emergencies, pandemics and other exploration or
other risks detailed herein and from time to time in the filings made by the Corporation with securities regulators.
Although the Corporation has attempted to identify important factors that could cause actual actions, events or results
to differ from those described in forward-looking statements, there may be other factors that cause such actions, events
or results to differ materially from those anticipated. There can be no assurance that such statements will prove to be
accurate, as actual results and future events could differ materially from those anticipated in such statements.
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