Saturday, September 26, 2026
MiningNewsTerminal
Saturday, September 26, 2026 Admin

FF.TO ·

First Mining Confirms New Area of Mineralization at Central Duparquet and Announces Management Changes

Management Changes Exploration Programs

TSX: FF

OTCQX: FFMGF

FRANKFURT: FMG

- 1 -

NEWS RELEASE

First Mining Confirms New Area of Mineralization at Central Duparquet and

Announces Management Changes

• Exploration Between Central Duparquet and Dumico Resource Areas Returns 1.71 g/t Au over 8.9 m,

Confirming Strike Continuity

• Central Duparquet High Grade Zone Returns 2.73 g/t Au over 6.15 m, Unlocking Mineralization

Potential at Depth

January 9, 2024 – Vancouver, Canada – First Mining Gold Corp. (“First Mining” or the “Company”) (TSX:

FF) (OTCQX: FFMGF) (FRANKFURT: FMG) is pleased to announce the expansion of multiple gold zone s

from the drilling of key targets at the Duparquet Gold Project (“Duparquet Project” or the “Project”)

located in Quebec, Canada. First Mining has completed 17 exploration drill holes totalling 6,966 m in its

2023 exploration drilling campaign which focused on initial drill testing of key targets across the project.

A new are a of mineralization continuity was identified at Central Duparquet (“ Valentre Target”) which

returned 1.71 g/t Au over 8.9 m, including 5.11 g/t Au over 1 m, and 1.29 g/t Au over 7.6 m, including 3.3

g/t Au over 1.8 m in drill hole DUP23-006. This is an exciting target for First Mining as it demonstrates the

potential continuity of mineralization between the Central Duparquet and the Dumico deposits that had

never been drill tested prior to First Mining’s 2023 drilling campaign.

In addition, drilling at the CDHG Zone in the area of the historical Central Duparquet development

returned 1.78 g/t Au over 4 m, 2.73 g/t Au over 6. 15 m, including 6.98 g/t Au over 0.7 m, and including

10.6 g/t Au over 0.65 m, in drill hole DUP23 -005. These results validate the resource wireframe and

support the extension of a higher-grade zone with mineralization continuity at depth.

“These latest drill holes are building momentum in the untested upside potential that the Duparquet Gold

Project has to offer ,” stated Dan Wilton, CEO of First Mining . “ With a positive PEA announced in

September 2023 and continued success in our team’s exploration strategy , First Mining is continuing to

demonstrate the resource growth potential at this critical strategic project in the centre of the prolific

Abitibi Greenstone Belt.”

2023 Drilling Highlights:

Table 1: Selected Significant Drill Intercept Results from Central Duparquet

Hole ID From (m) To (m) Length

(m)

Grade (Au

g/t)

Target

DUP23-005 292 296 4 1.78 CDHG Zone

DUP23-005 306 312.15 6.15 2.73 CDHG Zone

DUP23-006 304.6 313.5 8.9 1.71 Valentre Target

DUP23-006 353.9 355.9 2 2.57 Valentre Target

DUP23-006 363.8 371.4 7.6 1.29 Valentre Target

TSX: FF

OTCQX: FFMGF

FRANKFURT: FMG

- 2 -

DUP23-007 115 119.5 4.5 1.34 CDHG Zone Extension

DUP23-008 235 238 3 2.04 CDHG Zone

DUP23-008 243 254 11 2.83 CDHG Zone

*Reported intervals are drilled core lengths (true widths are estimated at 75-85% of the core length interval); assay

values are uncut

2023 Duparquet Drilling Program

First Mining commenced a foundational drilling program in May 2023 with a campaign that is focusing on

the advancement of newly defined targets , as well as validating and expanding on resource growth and

optimization opportunities.

Results returned from the exploration drill holes are continuing to demonstrate that this project has

significant potential across the wholly-owned land tenure, through the confirmation of the new zones and

targets at Central Duparquet , as well as the previously announced Buzz Zone (See September 5, 2 023

news release).

Drilling at Central Duparquet focused on advancing geological characterization and the understanding of

a higher grade trend (“CDHG Zone”) and testing its continuity at depth as well as drill testing a new target

(“Valentre”) that could establish continuity between the Central Duparquet and Dumico resource pit

designs as defined in the 2023 PEA (Figure 1).

Figure 1: Plan View of the Central Duparquet Targets in Relation to R esource Wireframes and Resource Pit Designs (Section in

Figure 2)

The CDHG Zone includes drill holes DUP23-005, DUP23-007 and DUP23-008 which were drilled to test the

steep easterly plunge of the Central Duparquet mineralization below the current resource pit design. An

area of anomalous gold mineralization was identified over approximately 60 metres in drill hole DUP23-

005 that included intersections of 1.78 g/t Au over 4.0 m and 2.73 g/t Au over 6.15 m, including 6.98 g/t

Au over 0.7 m and 10.60 g/t Au over 0.65 m. Mineralization is hosted within both the syenite and at the

Legend

Gold M iner aliza�on >

0.3 g/t

Histor ic al Gold

M iner aliza�on > 0.3 g/t

Open Pit Design

Dr ill T r ac e 2023

Histor ic al Dr ill T r ac e

Res ource Wi refra me

Resource Expansion

Opportunity

Central Duparquet

Dumico

DUP23-006

DUP23-007

DUP23-008

DUP23-005

CDHG ZONE

N

VALENTRE

TARGET

A

B

TSX: FF

OTCQX: FFMGF

FRANKFURT: FMG

- 3 -

contact with an argillitic unit, which may represent an affinity with a shear zone. Alteration includes areas

of patchy chlorite and hematite, with limited sulphide mineralization occurring throughout.

Drill hole DUP23-007 targeted and validated a depth extension of the CDHG Z one and returned 1.34 g/t

Au over 4.5 m hosted within syenite, as well as 1.01 g/t Au over 3.8 m and 1.16 g/t Au over 5.1 m hosted

within sheared and altered basalt units interbedded with syenites.

Drill hole DUP23-008 was focused on testing the extent of mineralization from surface and at depth, as

well as the strike continuity of mineralization intercepted in DUP23-006, located 350 m to the east. Drill

results for DUP23-008 returned 2.04 g/t Au over 3 m, and 2.83 g/t Au over 11 m, including 4.40 g/t Au

over 3 m, and extends the mineralization which is hosted within a brecciated syenite-basalt contact with

chlorite and silica alteration.

Drill holes DUP23-005, DUP23-007 and DUP23-008 were successful in confirming the depth extension of

the current wireframes and interpolated block model to a depth of approximately 400 m below the

surface, which supports further follow-up opportunities for unlocking higher-grade trends at depth (Figure

2).

Figure 2: Drilling results from holes DUP23-005, DUP23-007 and DUP23-008 confirm wireframe extension and unlock follow-up

opportunities for higher-grade trends at depth (Section line illustrated in Figure 1).

TSX: FF

OTCQX: FFMGF

FRANKFURT: FMG

- 4 -

The Valentre target is located between the Central Duparquet and Dumico resource pit shells and focuses

on the possible continuity of mineralization that was historically untested due to prior ownership

boundaries. First Mining’s maiden hole at the Vale ntre target, DUP 23-006, aimed to test an open

exploration opportunity of 175 m between these resource areas . Significant gold mineralization was

intersected in multiple intercepts along the length of DUP23-006, confirming a potential for continuity of

the wireframes along strike in the area at a relatively shallow depth. The most significant intercept

returned includes 2.07 g/t Au over 2.5 m located immediately to the northwest of the Dumico pit design,

followed further down the hole by 1.82 g/t Au over 3.0 m. The host rock is syenite with silicification and

local pyrite mineralization. The best intersection along strike and immediately below the wireframes from

Central Duparquet included 1.71 g/t Au over 8.9 m, including 5.11 g/t Au over 1.0 m. This mineralization

is typical of that which hosts the bulk of the current mineral resource located to the east of the Central

Duparquet target, which includes a syenite -associated lath to megacrystic porphyry, with local units of

gabbro. Drill hole DUP23-006 confirms that the mineralization is continuous and present in several

horizons between the most easterly resource pit shells from the Duparquet Gold Project’s 2023 PEA

(Figure 3).

Figure 3: Results from maiden drill hole DUP23-006 confirm extension of multiple zones of mineralization at the Valentre Target,

located between the Central Duparquet and Dumico resource pit designs

TSX: FF

OTCQX: FFMGF

FRANKFURT: FMG

- 5 -

A total of 1,923 m of d rilling was completed at the Central Duparquet Target in four holes. Significant

assay results from the Central Duparquet target are reported in Table 2, and drill locations are provided

in Table 3.

The drilling results returned from the Central Duparquet Target validate the existing resource model and

support the delineation and advancement of higher -grade trends. F urther drilling to demonstrate

continuity along strike and at depth between the Central Duparquet and Dumico pit designs is

recommended, as this area has the potential to holistically add meaningful ounces to the global

Duparquet Gold Project (Figure 4).

Figure 4: Plan view highlighting drill holes DUP23 -005, DUP23- 006, DUP23- 007 and DUP23-008 alongside previously drilled

significant intercepts and the extent of known and potential mineralization at the Central Duparquet Target

“We are looking forward to further the assay results from our 2023 drilling campaign and launching into

the next round of drill targeting for 2024, where the focus will be to further advance key targets identified

through the 2023 campaign,” stated James Maxwell, First Mining’s Vice President of Exploration.

Table 2: Significant Drill Intercepts, Duparquet Gold Project

Hole ID From

(m) To (m) Length (m) Grade (Au g/t)

DUP23-005 292 296 4 1.78

DUP23-005 306 312.15 6.15 2.73

DUP23-005 inc. 310.3 311 0.7 6.98

DUP23-005 and inc. 311.5 312.15 0.65 10.60

DUP23-006 79.5 82 2.5 2.07

DUP23-006 inc. 80 80.5 0.5 5.96

DUP23-006 118 121 3 1.82

DUP23-006

304.6 313.5 8.9 1.71

DUP23-006 inc. 305.5 306.5 1 5.11

DUP23-006

353.9 355.9 2 2.57

DUP23-006 inc. 353.9 354.9 1 4.72

DUP23-006

363.8 371.4 7.6 1.29

TSX: FF

OTCQX: FFMGF

FRANKFURT: FMG

- 6 -

Hole ID From

(m) To (m) Length (m) Grade (Au g/t)

DUP23-006 inc. 369.6 371.4 1.8 3.33

DUP23-007 115 119.5 4.5 1.34

DUP23-007 161.5 165.3 3.8 1.01

DUP23-007 418.5 423.6 5.1 1.16

DUP23-008 235 238 3 2.04

DUP23-008 243 254 11 2.83

DUP23-008 inc. 250 253 3 4.40

*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

DUP23-005 175 -60 429 633087 5374078

DUP23-006 180 -45 459 633507 5374089

DUP23-007 180 -68 660 633153 5374095

DUP23-008 180 -45 375 633153 5374095

Note: Collar coordinates in UTM NAD 83 z17

2024 Duparquet Exploration Program Outlook

The 2023 drilling and field campaigns at the Duparquet Gold project have provided the First Mining

exploration team with a strong foundatio nal understanding of the geoscience, data gaps and

opportunities for exploration advancement. The Company is aiming to complete its Phase 2 drilling

campaign this winter while actively advancing the drilling strategy for a n additional Phase 3 program

alongside airborne geophysics and LiDAR survey programs in areas of opportunity for data resolution

enhancement.

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

totals ~5,800 hectares focused along an area of 19 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, Donchester and Duquesne mines and as well as

the Central Duparquet , Dumico and Pitt Gold deposits. In 2023 , First Mining completed a positive

Preliminary Economic Assessment (PEA) for the project that will guide phased optimization and

advancement moving forward.

Analytical Laboratory and QA/QC Procedures

TSX: FF

OTCQX: FFMGF

FRANKFURT: FMG

- 7 -

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 at Duparquet were sent to AGAT Laboratories, with sample preparation in Val d’Or and analysis

in Thunder Bay , where they were processed for gold analysis by 50 gram fire assay with an atomic

absorption finish. Samples from selected holes were sent to AGAT Laboratories in Calgary, Alberta, for

multi-element analysis (including silver) by 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.

Senior Management Changes

Jeff Reinson, the Company’s Chief Operating Officer, will be leaving his role at First Mining effective

January 19, 2024. Following Mr. Reinson’s departure, James Maxwell will assume the role of Vice

President, Exploration & Project Operations, reporting directly to the CEO , and will take overall

responsibility for operations at Springpole, Duparquet and the Company’s other projects. In addition,

Steve Lines will assume the role of Vice President, Sustainability, reporting directly to the CEO.

“We would like to thank Jeff for his service and contributions to First Mining,” stated Dan Wilton, CEO of

First Mining. “He has played a very important role in advancing our Springpole and Duparquet projects

and we wish him well in his future endeavours. We are also delighted to have James and Steve move into

new roles that recognize their talent and leadership. Over the past couple of years, James has

demonstrated outstanding leadership, collaboration and team -building while driving a culture of safety

and accountability while leading our exploration team, and Steve has done an outstanding job in driving

the Springpole EA and community relations process and will continue to have a very important

community-facing role in our advancement of Duparquet. We believe that this realignment both

recognizes the talent we have in our organization today and streamlines our management structure, and

that these changes leave us in a very good position to continue to make progress on our key strategic

imperatives in 2024, which will ultimately allow the significant value in our strategic gold assets to be

realized in the market.”

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 Project in Quebec, a PEA-stage development project 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

TSX: FF

OTCQX: FFMGF

FRANKFURT: FMG

- 8 -

with Firefly Metals 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

For further information, please contact:

Toll Free: 1 844 306 8827 | Email: [email protected]

Paul Morris | Director, Investor Relations | Email: [email protected]

Cautionary Note Regarding Forward-Looking Statements

This news release includes certain “ forward-looking information” and “ forward-looking statements” (collectively

“forward-looking statements”) within the meaning of applicable Canadian and United States securities legislation

including the United States Private Securities Litigation Reform Act of 1995. These forward- looking statements are

made as of the date of this news release. Forward -looking statements are frequently, but not always, identified by

words such as “ expects”, “anticipates”, “believes”, “plans”, “projects”, “ intends”, “estimates”, “envisages”,

“potential”, “possible”, “strategy”, “goals”, “opportunities”, “objectives”, or variations thereof or stating that certain

actions, events or results “may”, “could”, “would”, “might” or “will” be taken, occur or be achieved, or the negative

of any of these terms and similar expressions.

Forward-looking statements in this news release relate to future events or future performance and reflect current

estimates, predictions, expectations or beliefs regarding future events. All forward-looking statements are based on

First Mining's or its consultants' current beliefs as well as various assumptions made by them and information

currently available to them. There can be no assurance that such statements will prove to be accurate, and actual

results and future events could differ materially from those anticipated in such statements. Forward- looking

statements reflect the beliefs, opinions and projections on the date the statements are made and are based upon a

number of assumptions and estimates that, while considered reasonable by the respective parties, are inherently

subject to significant business, economic, competitive, political and social uncertainties and contingencies. Such

factors include, without limitation the Company’s business, operations and financial condition potentially being

materially adversely affected by the outbreak of epidemics, pandemics or other health crises, such as COVID-19, and

by reactions by government and private actors to such outbreaks; risks to employee health and safety as a result of

the outbreak of epidemics, pandemics or other health crises, such as COVID -19, that may result in a slowdown or

temporary suspension of operations at some or all of the Company's mineral properties as well as its head

office; fluctuations in the spot and forward price of gold, silver, base metals or certain other commodities;

fluctuations in the currency markets (such as the Canadian dollar versus the U.S. dollar); changes in national and

local government, legislation, taxation, controls, regulations and political or economic developments; risks and

hazards associated with the business of mineral exploration, development and mining (including environmental

hazards, industrial accidents, unusual or unexpected formations, pressures, cave- ins and flooding); the presence of

laws and regulations that may impose restrictions on mining; employee relations; relationships with and claims by

local communities, indigenous populations and other stakeholders; availability and increasing costs associated with

mining inputs and labour; the speculative nature of mineral exploration and development; title to properties.; and

the additional risks described in the Company’s Annual Information Form for the year ended December 31, 2022 filed

with the Canadian securities regulatory authorities under the Company’s SEDAR profile at www.sedar.com, and in

the Company’s Annual Report on Form 40-F filed with the SEC on EDGAR.