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"We are pleased to announce these new positive drilling results from our Phase 3 diamond drilling program at Duparquet," stated Dan Wilton, CEO of First Mining. "Exploration at Duparquet is a high priority focus for First Mining and these results continue to demonstrate the potential at the project outside of our current mineral resource estimate.  Our exploration programs are supported by a strong geoscience foundation and position us well for our upcoming drill phases."

The Phase 3 drill program commenced in May 2024 and a total of 9,564 m of drilling has been completed to date.  There are 4,557 m of outstanding results and First Mining expects to report the final results in Q4 2024. The Phase 3 program focused on priority targets with the aim of drill testing and advancing multiple potential resource expansion zones across the Duparquet Gold project. First Mining believes the Buzz Zone and North Zone targets provide significant resource growth potential that will continue to advance with additional exploration phases at the Project.

A plan map of the Buzz Zone and North Zone drill holes is presented in Figure 1, and corresponding assay highlights are presented in Table 1, with full assay results listed in Table 2 and drill hole locations in Table 3.

Table 1:  Selected Significant Drill Intercepts, 2024 Phase 3 Drill Program – Buzz and North Zone Targets

Duparquet 2024 Exploration Programs

Exploration activities have continued to advance at the Duparquet project throughout 2024, with the Phase 3 drilling and regional field work programs now winding down for the year. Inbound assay results are being reviewed with the key focus shifting to the interpretation and integration of the 2024 data - including geochemical, geophysical, oriented core, and magnetic susceptibility data - into the 3D geoscience models, to support the delineation of further expansion targets.

Exploration efforts are advancing with the development and review of follow-up programs for 2025, maintaining focus on the Company's integrated geoscience exploration strategy.

Additional Details on Buzz Target Drilling

The Buzz Zone drilling strategy is focused on targeting resource growth immediately south of the current Duparquet mineral resource. The Buzz Zone currently spans 300 m strike and 200 m depth between drill holes. The target remains open up- and down-dip along the core plunge of the gold mineralization. The Buzz Zone was originally discovered during First Mining's 2023 drilling program, with drill hole DUP23-002 intersecting 6.52 g/t Au over 4.6 m (refer to news release dated September 5, 2023).

The 2024 Buzz follow-up drilling campaign, comprising of three holes - DUP24-028, DUP24-029, and DUP24-030 (Figures 2 and 3), has further defined the gold zone along strike and at depth. Mineralization in all three holes consists of fine-grained to very fine-grained disseminated pyrite mineralization, pervasive silica and sericite alteration, and is hosted within syenite units or along syenite-argillite and volcanic contacts. Higher-grade zones are consistent along the interpreted D2 higher strain zones, which is characterized by strong shearing and/or brecciation observed in the core.

The 2024 drilling campaign has further defined, expanded, and delineated higher-grade trends within the Buzz Zone and the recent drill results continue to support the area as a highly prospective target zone for the Project, with the potential to unlock meaningful mineralization along strike as the target remains open in all directions (Figure 4).  The Buzz Zone remains a priority area for exploration and potential expansion of the Duparquet mineral resource.

Additional Details on North Zone Drilling

The North Zone drilling strategy is focused on targeting depth and strike extensions, with an emphasis on potential high-grade trends that support the down-plunge continuity of the mineralization. In June 2024, First Mining announced drill results from DUP24-024 which intersected multiple gold zones including 10.67 g/t Au over 5.3 m, 6.63 g/t Au over 9.0 m, 3.04 g/t Au over 33.5 m, and 5.97 g/t Au over 33.0 m (see news release from June 18, 2024), and identified a newly interpreted syenite–mafic volcanic contact zone which is strongly favourable for higher-grade gold mineralization owing to  geochemical and rheological attributes. Initial drill holes targeting the North Zone have led to an updated 3D geological interpretation, identifying a contact zone between the mafic volcanic and syenite stratigraphy at depth. These findings highlight significant opportunities for resource expansion along strike and depth. The second phase of drill holes, including the holes reported in this news release, targets the strike extension of the North Zone along the newly interpreted contact zone.

Drill holes DUP24-031 (Figure 5), DUP24-032 (Figure 6), and DUP24-033 (Figure 7) were all step-out holes along the strike of the main projected syenite-mafic volcanic stratigraphic contact zone. All three holes intersected this modelled stratigraphic zone which is defined by strongly foliated and/or sheared basalt at the northern contact of the Beattie syenite unit. Hole DUP24-031 intersected strong silica- and sericite-altered syenite with increased quartz carbonate veining and up to 5% fine grained pyrite mineralization, that hosted gold mineralization near the 'contact zone'. Hole DUP24-032 intersected sheared sericite-altered basalt with up to 10% localized, very fine-grained disseminated pyrite mineralization, in close proximity to the contact zone. Hole DUP24-033 intersected the syenite-mafic volcanic contact zone at depth with strongly sheared silica- and sericite-altered basalt, with mineralization hosted within the 'contact zone' of a 5.5 m sliver of silica-altered syenite with up to 1% fine grained pyrite mineralization.

The 2024 drill campaign at the North Zone further defined and delineated higher-grade trends and expanded the mineralization zone 130 m to the east along strike and plunge, with the target remaining open towards the east and at depth.  Ongoing interpretations from the drilling will enhance geological understanding, advance insights into higher-grade controls, and support the expansion of mineralization within the North Zone. The target remains a highly prospective zone for the Duparquet Project as 2024 drilling results have shown this zone to have significant gold mineralization with the potential to delineate meaningful mineralization and grade along strike and at depth (Figure 8).

Table 2: 2024 Phase 3 Drilling - Significant Assays

Table 3: Phase 3 Drill Hole Locations, Buzz and North Zone Targets

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 Project benefits from easy access and proximity to an existing workforce and infrastructure, including road, rail and hydroelectric grid power. The Duparquet Project currently hosts an NI 43-101 compliant gold resource of 3.44 million ounces in the Measured & Indicated category, grading 1.55 g/t Au, and an additional 2.64 million ounces in the Inferred category, grading 1.62 g/t Au. First Mining completed a Preliminary Economic Assessment¹ ("PEA") on the Project in 2023 (see news releases dated September 7, 2023 and October 23, 2023).

The Duparquet Project totals approximately 5,800 hectares focused on an area of 19 km 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, as well as the Central Duparquet, Dumico and Pitt Gold deposits.

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 2024 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.

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 final Environmental Impact Statement / Environmental Assessment for the project submitted in November 2024, and the Duparquet Gold 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 with Firefly Metals Ltd.) and the Hope Brook Gold Project (being advanced in partnership with Big Ridge Gold Corp.).

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

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, 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, 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, 2023 filed with the Canadian securities regulatory authorities under the Company's SEDAR+ profile at www.sedarplus.ca.

First Mining cautions that the foregoing list of factors that may affect future results is not exhaustive. When relying on our forward-looking statements to make decisions with respect to First Mining, investors and others should carefully consider the foregoing factors and other uncertainties and potential events. First Mining does not undertake to update any forward-looking statement, whether written or oral, that may be made from time to time by the Company or on our behalf, except as required by law. 

Cautionary Note to United States Investors

The Company is a "foreign private issuer" as defined in Rule 3b-4 under the United States Securities Exchange Act of 1934, as amended, and is eligible to rely upon the Canada-U.S. Multi-Jurisdictional Disclosure System, and is therefore permitted to prepare the technical information contained herein in accordance with the requirements of the securities laws in effect in Canada, which differ from the requirements of the securities laws currently in effect in the United States. Accordingly, information concerning mineral deposits set forth herein may not be comparable with information made public by companies that report in accordance with U.S. standards.

Technical disclosure contained in this news release has not been prepared in accordance with the requirements of United States securities laws and uses terms that comply with reporting standards in Canada with certain estimates prepared in accordance with NI 43-101.

NI 43-101 is a rule developed by the Canadian Securities Administrators that establishes standards for all public disclosure an issuer makes of scientific and technical information concerning the issuer's material mineral projects.

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SOURCE First Mining Gold Corp.