First Mining Defines New Gold Zone with 6.52 g/t Au over 4.6 Metres in Initial Drilling Campaign at the Duparquet Gold Project
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NEWS RELEASE
First Mining Defines New Gold Zone with 6.52 g/t Au over 4.6 Metres
in Initial Drilling Campaign at the Duparquet Gold Project
September 5, 2023 – Vancouver, Canada – First Mining Gold Corp. (“First Mining” or the “Company”)
(TSX: FF) (OTCQX: FFMGF) (FRANKFURT: FMG) is pleased to announce the confirmation of a new gold
zone based on initial results from its Phase I exploration drilling program at the Duparquet Gold Project
(“Duparquet Project” or the “Project”) located in Quebec, Canada. Recent drilling at the Project occurred
at the newly modeled “Buzz Zone” which intersected 6.52 g/t Au over 4.6 m and 1.19 g/t Au over 10.4 m
in drill hole DUP23-002, and 4.94 g/t Au over 1.00 m as well as 2.16 g/t Au over 1.50 m in drill hole DUP23-
003, confirming a newly modeled gold zone targeted proximal to the South Beattie Syenite contact. In
addition, results from drill hole DUP23-001 returned 2.28 g/t Au over 5.05 m, and drill hole DUP23-002
returned 8.70 g/t Au over 3.3 m, validating wireframes for the existing resource.
“These first drill holes have now confirmed a new modeled gold zone at the Duparquet Gold Project ,”
stated Dan Wilton, CEO of First Mining. “With further drilling to continue, First Mining is well positioned
to continue advancing this strategically important project located in the prolific Abitibi Greenstone Belt.
The ongoing drilling success at Duparquet will provide upside potential to the Duparquet Gold Project
where First Mining is currently advancing on a PEA and expect to have that completed in Q3 2023.”
Drilling Highlights:
• Initial drilling campaign at the Duparquet Project since acquisition confirms new gold zone
• “Buzz Zone” intercepts of 6.52 g/t Au over 4.6 m, 1.19 g/t Au over 10.4 m, 4.94 g/t Au over 1.0 m
and 2.16 g/t Au over 1.5 m
• Additional intercepts in areas of geologic and wireframe validation which include 8.70 g/t Au over
3.3 m and 3.47 g/t Au over 7.75 m
• Continued demonstration of a sizeable and growth-enabled gold system in one of Canada’s largest
undeveloped gold projects
Table 1: Selected Significant Drill Intercept Results at Buzz Zone
Hole ID From
(m) To (m) Length
(m)
Grade
(Au g/t) Target
DUP23-002 450.8 455.4 4.60 6.52 Buzz
inc. 452.6 454.4 1.80 12.82 Buzz
inc. 453.5 454.4 0.90 18.60 Buzz
and 582.0 592.4 10.40 1.19 Buzz
inc. 587.8 588.5 0.70 3.97 Buzz
DUP23-003 659.0 660.0 1.00 4.94 Buzz
and 715.5 717.0 1.50 2.16 Buzz
*Reported intervals are drilled core lengths (true widths are estimated at 75-85% of the core length interval); assay
values are uncut
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The Phase I drilling program commenced in May 2023 and is focused on validating, de -risking and
unlocking exploration opportunities at the Duparquet Project, which h as seen limited exploration since
2013. First Mining’s initial campaign is the first to be conducted within its newly consolidated and wholly
owned mineral tenure at Duparquet , which now spans 19 km of strike length of the prolific Destor-
Porcupine Fault Zone in the Abitibi Greenstone Belt.
The newly modeled “Buzz Zone” occurs immediately south of the existing Duparquet mineral resource,
which i ncludes a combined pit and selective underground mining scenario with additional tailings
resource, and which is currently estimated at 3.4 million ounces of gold in the Measured & Indicated
category, grading 1.55 g/t Au, and an additional 1.6 million ounces of gold in the Inferred category, grading
1.36 g/t Au*. Recent drilling by First Mining targeted a new potential zone surrounding a historical drill
intercept (1.77 g/t Au over 30 m in drill hole B09-40, including 2.38 g/t Au over 4 m, 7.44 g/t Au over 3 m
and 5.72 g/t Au over 2 m ), with a recognized potential for significant expansion with confirmation of
continuity. First drilling by the Company at the Buzz Zone included two drill holes totalling 1,395 meters
which demonstrate new mineralization over a strike length of 240 m which remains open in all directions.
* Details of the Duparquet Gold Project mineral resource can be found in the technical report entitled “NI 43 -101
Technical Report and Mineral Resource Estimate Update for the Duparquet Project, Quebec, Canada” which was
prepared by InnovExplo Inc . of Val d’Or, Quebec in accordance with National Instrument 43 -101 Standards of
Disclosure for Mineral Projects (“NI 43-101”) and has an effective date of September 12, 2022.
Buzz Target
The Buzz target is located immediately south of the current resource wireframes at First Mining Gold’s
Duparquet Deposit (see Figure 1, Figure 2). The Buzz Zone is a resource expansion target which is hosted
within interpreted splay(s) off the prolific Destor Porcupine Fault Zone located in the Abitibi Greenstone
Belt.
The m ineralization at Duparquet is known to occur along high strain corridors within sheared and
brecciated zones that straddle or cut though the margins of the Beattie syenite. The gold mineralization
is associated with fine- to very fine-grained, disseminated pyrite and lesser arsenopyrite, and is associated
with silicification, sericitization and ankeritization.
The second hole of the Phase I drill program , DUP23-002, was aimed at validating current mineralized
resource wireframes and geological models while testing the Buzz Z one, a target previously
underexplored due to the proximity of the historical boundary between the Duparquet property and the
Porcupine East prope rty, which was acquired by First Mining earlier this year . The Buzz Z one was
intersected at a vertical depth of 355 metres and includes intervals of 6.52 g/t Au over 4.6 m, including
12.82 g/t Au over 1.8 m, and 1.19 g/t Au over 10.4 m, including 3.97 g/t Au over 0.7 m (Table 1). This drill
hole also validated several of the modelled resource wireframes while confirming continuity at depth
which included intervals of 8.70 g/t Au over 3.3 m and 0.94 g/t Au over 12.0 m. The drill hole also
intersected additional mineralized zones near surface that had not been identified and included in the
wireframes used in the current mineral resource estimate which included assay intervals of 2.72 g/t Au
over 6.3 m from 106.0 m to 112.3 m, and 0.74 g/t Au over 20.25 m from 125.8 m to 146.0 m.
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The third hole of the program , DUP23 -003, located 230 m to the east of DUP23-002, intersected
mineralization below the current resource with a potential for wireframe extension of up to 75 m,
including a significant intercept of 3.47 g/t Au over 7.75 m from 378.85 m to 386.60 m. DUP23-003 also
drill tested the Buzz Zone and returned 4.94 g/t Au over 1.0 m from 659.0 m to 660.0 m, and 2.16 g/t Au
over 1.50 m from 715.5 m to 717.0 m, hosted within brecciated lithologies. Initial interpretation of the
target intercept provides a positive vector at depth for a favourable host setting within the conventionally
targeted syenite, approximately 100 m vertically deeper.
Figure 1: Drill Hole Locations - plan view map, highlighting the first three holes in the Phase I: 5000 m
drill program (with red zones representing the modelled mineralization, and blue zones representing
newly identified target areas)
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Figure 2: Oblique section of the first three holes drilled by First Mining Gold at the Duparquet Project,
with red zones representing the modelled mineralization, and blue zones representing newly identified
target areas
2023 Duparquet Drilling Program
First Mining commenced a foundational drilling program in May 2023 with an initial 5,000 m drilling
campaign that is focusing on the advancement of newly defined targets , as well as validating and
expanding on resource growth and optimization opportunities.
The first three holes in the Phase I 5,000 m drilling program w ere aimed at validating the historical
modelled mineralization and testing opportunities to extend the mineralization at depth and along strike.
The Phase I program is also aiming to unlock exploration opportunities immediately surrounding the
mineral resource, as well as at targeted areas that were identified from integrating datasets from the
recently consolidated land tenure, which was historically underexplored and demonstrates potential to
add additional mineral resources around the project (Figure 3).
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Figure 3: First Mining’s Consolidated Land Tenure in Abitibi
Other drill targets tested by Fir st Mining include drilling around the historical Beattie mine, where there
is still significant opportunity for validation and extension at depth.
Drill hole DUP23-001 targeted the depth extension of the mineralization at the contact of the Beattie
syenite and mafic volcanics. Two of the interpreted wireframes were intersected along the southern half
of the Beattie Syenite. The hole intersected silicified , fine-grained syenite containing 0.5-1% pyrite and
arsenopyrite and returned 2.28 g/t Au over 5.05 m, followed by a second zone approximately 105 m down
the hole at the southern contact of the syenite with the volcanics, which returned 0.96 g/t Au over 9.8 m
(Figure 4).
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Figure 4: DUP23-001 Demonstrating potential below current open pit design (pit intersection shown in
grey)
Significant assay results from the Duparquet Gold Project drilling program are reported below in Table 2,
and drill locations are provided in Table 3.
Results from the current drilling validate the existing resource model, having intersected gold
mineralization within the pit shell and interpreted wireframes. The drilling results also confirm that the
interpreted wireframes have continuity at depth and that significant new gold mineralization exists to the
south, beyond the limits of the current mineral resource estimate.
The Company's exploration strategy at Duparquet is focused on advancing on multiple targets during this
Phase I program, while continuing to integrate and modernize historical datasets to support drill targeting.
“We are looking forward to completing our Phase I drilling campaign and launching into the next round of
drilling in the fall of 2023, with an improved understanding of the resource and the brownfields
opportunities at Duparquet while unlocking further exploration potential at the drill bit and with regional
greenfields campaigns,” stated James Maxwell, First Mining’s Vice President of Exploration.
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Table 2: Significant Drill Intercept Results at Duparquet Gold Project
Hole ID From (m) To (m) Length
(m)
Grade
(Au g/t) Target
DUP23-001 259.50 264.55 5.05 2.28 Beattie
and 365.20 375.00 9.80 0.96 Beattie
DUP23-002 44.00 47.00 3.00 0.96 Beattie
and 106.00 112.30 6.30 2.72 Beattie
and 125.75 146.00 20.25 0.74 Beattie
and 354.00 357.30 3.30 8.70 Beattie
inc. 354.00 355.00 1.00 18.80 Beattie
and inc. 356.30 357.30 1.00 9.20 Beattie
and 420.00 432.00 12.00 0.94 Beattie
and 450.80 455.40 4.60 6.52 Buzz
inc. 452.60 454.40 1.80 12.82 Buzz
and inc. 453.50 454.40 0.90 18.60 Buzz
and 582.00 592.40 10.40 1.19 Buzz
inc. 587.80 588.50 0.70 3.97 Buzz
DUP23-003 60.50 65.50 5.00 6.08 Beattie
inc. 60.50 61.50 1.00 11.80 Beattie
and inc. 63.50 64.50 1.00 15.00 Beattie
and 136.00 158.40 22.40 1.09 Beattie
inc. 137.80 138.30 0.50 13.10 Beattie
and 266.20 267.00 0.80 7.07 Beattie
and 378.85 386.60 7.75 3.47 Beattie
inc. 380.30 382.00 1.70 10.79 Beattie
and 659.00 660.00 1.00 4.94 Buzz
and 715.50 717.00 1.50 2.16 Buzz
*Reported intervals are drilled core lengths (true widths are estimated at 75-85% of the core length interval); assay
values are uncut
Table 3: Drill Hole Locations, Duparquet Gold Project
Hole ID Azimuth
(°)
Dip
(°)
Length
(m) Easting Northing Target
DUP23-001 175 63 507 630445 5374387 Beattie
DUP23-002 175 55 645 631053 5374400 Beattie and Buzz
DUP23-003 180 60 750 631307 5374429 Beattie and Buzz
Note: Collar coordinates in UTM NAD 83 z17
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About the Duparquet Gold Project
The Duparquet Project is geologically situated in the southern part of the Abitibi Greenstone Belt and is
geographically located approximately 50 km north of the city of Rouyn-Noranda. The Duparquet Project
is part of a property ownership package that spans several kilometres of strike length along the prolific
Destor-Porcupine Fault Zone, along with numerous mineralized splays and influential secondary
lineaments. The Duparquet Project includes the past-producing Beattie and Donchester mines and as well
as the Central Duparquet and Dumico deposits. In addition, the project is located adjacent and contiguous
to our Pitt Gold and Duque sne projects, as well as the Porcupine East claim blocks that we recently
acquired from IAMGOLD.
Analytical Laboratory and QA/QC Procedures
All sampling completed by First Mining within its exploration programs is subject to a Company standard
of internal quality control and quality assurance (QA/QC) programs which include the insertion of certified
reference materials, blank materials and a level of duplicate analysis. Core samples from the 2023 drilling
program were sent to AGAT Laboratories in Thunder Bay where they were processed for gold analysis by
50 gram fire assay with an atomic absorption finish, and samples from selected holes were sent to AGAT
Laboratories in Mississauga, Ontario, or Calgary, Alberta, for multi-element analysis (including silver) b y
inductively coupled plasma (ICP) method with a four acid digest. AGAT Laboratories systems conform to
requirements of ISO/IEC Standard 17025 guidelines and meets assay requirements outlined for NI 43-101.
Qualified Person
Louis Martin, P.Geo., Senior Geologic Consultant of First Mining, is a “Qualified Person” for the purposes
of NI 43-101 Standards of Disclosure for Mineral Projects , and has reviewed and approved the scientific
and technical disclosure contained in this news release.
About First Mining Gold Corp.
First Mining is a gold developer advancing two of the largest gold projects in Canada, the Springpole Gold
Project in northwestern Ontario, where we have commenced a Feasibility Study and permitting activities
are on-going with a draft Environmental Impact Statement (“EIS”) for the project published in June 2022,
and the Duparquet, Pitt Gold, Duquesne and Porcupine East Gold Project in Quebec, a collection of
advanced-stage development assets located on the Destor -Porcupine Fault Zone in the prolific Abitibi
region. First Mining also owns the Cameron Gold Project in Ontario and a portfolio of gold project
interests including the Pickle Crow Gold Project (being advanced in partnership with Auteco Minerals Ltd.),
the Hope Brook Gold Project (being advanced in partnership with Big Ridge Gold Corp.), and a large equity
interest in Treasury Metals Inc.
First Mining was established in 2015 by Mr. Keith Neumeyer, founding President and CEO of First Majestic
Silver Corp.
ON BEHALF OF FIRST MINING GOLD CORP.
Daniel W. Wilton
Chief Executive Officer and Director