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First Mining Announces Completion of Drill Program at the Miller Prospect, Further Drilling at the Goldlund Main Zone, and Director Resignation Intersects 2.23 g/t Gold over 33.0 Metres at the Miller Prospect on the Goldlund Property

Drill Results Management Changes

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NEWS RELEASE

First Mining Announces Completion of Drill Program at the Miller Prospect,

Further Drilling at the Goldlund Main Zone, and Director Resignation

Intersects 2.23 g/t Gold over 33.0 Metres at the Miller Prospect on the Goldlund Property

February 11, 2020 – Vancouver, BC – First Mining Gold Corp. (“First Mining” or the “Company”) (TSX:

FF) (OTCQX: FFMGF) (FRANKFURT: FMG) is pleased to announce the rem aining results from the drill

program completed at the Miller prospect (“Miller”). Miller forms part of the Company’s wholly -owned

Goldlund property (“Goldlund”) in Ontario, Canada and is located 10 kilometres northeast and along strike

of the current resource area at Goldlund.

Latest highlights from holes drilled at Miller include:

• Hole MI-19-040 intersected 1.35 grams per tonne gold (“g/t Au”) over 59.0 metres (“m”)

o Including 2.23 g/t Au over 33.0 m and 44.07 g/t Au over 1.0 m

• Hole MI-19-034 intersected 1.62 g/t Au over 12.0 m

o Including 18.07 g/t Au over 1.0 m

Dan Wilton, CEO of First Mining, stated “We are pleased with the results of the drill program that we have

completed at Miller and believe that the results showcase the potential for Goldlund to host multiple gold

deposits within close proximity of the currently defined resource area at the project. We believe we have

now delineated the boundaries of mineralization at Miller to the southwest and will look to further our

understanding of the extent of mineralization to the northeast, as well as potential parallel zones. Drilling

on the broader property continues and is currently underway within and around the defined resource

area at Goldlund (“Main Zone”) . We are confident in the potential to expand the existing resource base

at the Main Zone, as well as the potential to define additional resources on the property through further

regional exploration.”

The holes highlighted in this news release consist of the remaining step-out and infill holes drilled at Miller

in 2019. In total, since drilling first commenced on the Miller prospect in 2018, a total of 40 holes (7,386

metres) have been drilled, outlining mineralization over a strike length of approximately 450 metres.

The remaining holes at Miller were drilled primarily to delineate the extent of the main mineralized zone

towards the southwest, with eleven holes (MI -19-025 to MI -19-030, and MI -19-032 to MI -19-036)

targeting this southwest extension. Holes MI -19-035 and MI -19-036 appear to indicate the end of this

particular zone of mineralization in the southwest direction. Holes MI -19-031 and MI -19-039 were

exploratory holes drilled to test potential parallel structures, and hole MI-19-040 was an infill hole in the

centre of the Mi ller zone which encountered significant mineralization (1.35 g/t Au over 59.0 m). Holes

MI-19-037 and MI -19-038 were drilled to test geophysical targets that indicated a possible northeast

extension of Miller; hole MI -19-037 intercepted gold mineralization in gabbro (0.17 g/t Au over 15.0 m)

which, although lower grade than that found in some of the earlier Miller holes, demonstrates that this

northeast area may still be a viable target for follow-up soil and rock sampling.

The 2019 drill program at Miller consisted of 32 drill holes for a total of 6,130 metres. Drilling was

completed using approximate 25 metre spacing. This news release incorporates new results from 16 of

the 32 completed holes (following on from the Company’s November 19, 2019 and September 25, 2019

news releases which announced the results of the previous holes from the 2019 Miller drill program).

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Select assay results from the last sixteen holes of the Miller drill program are reported in the table below:

Hole ID From (m) To (m) Length (m) Au g/t Target

MI-19-025 53.0 64.0 11.0 0.61 Miller

including 58.0 59.0 1.0 1.89

and including 63.0 64.0 1.0 4.54

and 84.0 85.0 1.0 3.86

and 101.0 106.0 5.0 0.81

including 104.0 105.0 1.0 2.04

MI-19-027 21.0 22.0 1.0 1.69 Miller

and 100.0 107.0 7.0 1.50

including 106.0 107.0 1.0 4.64

MI-19-028 59.0 77.0 18.0 0.81 Miller

including 59.0 61.0 2.0 1.27

and including 69.0 77.0 8.0 1.48

and including 70.0 71.0 1.0 7.51

MI-19-030 36.0 40.0 4.0 4.03 Miller

including 38.0 39.0 1.0 15.33

and 48.0 83.0 35.0 0.25

including 61.0 63.0 2.0 1.62

MI-19-034 129.0 141.0 12.0 1.62 Miller

including 133.0 134.0 1.0 18.07

MI-19-040 60.0 119.0 59.0 1.35 Miller

including 60.0 93.0 33.0 2.23

and including 60.0 62.0 2.0 5.91

and including 78.0 93.0 15.0 3.88

and including 80.88 81.88 1.0 6.83

and including 86.88 87.88 1.0 44.07

Notes:

• Assaying for the Miller drill program was completed by SGS Canada Inc. (“SGS”) at their laboratory in Lakefield, Ontario.

Prepared 50 g samples were analyzed for gold by lead fusion fire assay with an atomic absorption spectrometry finish.

Multi-element analysis was also completed on selected holes by two-acid aqua regia digestion with ICP-MS and AES finish

• Reported widths are drilled core lengths; true widths are unknown at this time. Assay values are uncut

• Intervals for holes MI-19-025, MI-19-032, MI-19-034 and MI-19-040 include results of selected assay repeats. These repeats

were done by screened metallic fire assay on 1 kg size samples at the SGS laboratory in Lakefield

Drill Result Details

A plan map showing the 2018 and 2019 drill hole locations at Miller can be viewed at:

https://www.firstmininggold.com/_resources/maps/2020-02-11-Goldlund-NR-Plan-Map.pdf.

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A complete list of the 2019 drill results to date, including hole details, can be viewed at:

https://www.firstmininggold.com/_resources/maps/2020-02-11-FF-NR-Goldlund-2019-Drill-Results.pdf.

A map showing the district-scale and regional targets at Goldlund can be viewed at:

https://www.firstmininggold.com/_resources/maps/2019-06-FF-Goldlund-Regional-District.pdf.

Drill Hole Locations

Hole ID Azimuth ⁰ Dip ⁰ Final Depth (m) UTM East UTM North

MI-19-025 140 -65 176 554220 5533373

MI-19-026 140 -60 161 554252 5533408

MI-19-027 140 -60 128 554297 5533437

MI-19-028 140 -45 125 554297 5533437

MI-19-029 135 -70 203 554335 5533480

MI-19-030 140 -45 113 554335 5533480

MI-19-031 315 -45 185 554273 5533529

MI-19-032 0 -90 212 554367 5533434

MI-19-033 0 -90 155 554306 5533372

MI-19-034 0 -90 179 554251 5533338

MI-19-035 325 -45 200 554240 5533232

MI-19-036 325 -65 197 554240 5533232

MI-19-037 27 -45 287 554845 5533592

MI-19-038 106 -45 185 554843 5533591

MI-19-039 108 -45 185 554614 5533526

MI-19-040 287 -45 212 554616 5533525

The drill program at Goldlund has now moved from the Miller Zone to the Goldlund Main Zone area, and

an initial 23-hole (approximately 4,000 metre) drill program is already underway, with a focus on defining

and extending mineralization in the eastern portions of Zones 1, 2, 3 and 4.

A f urther review of regional targets is also ongoing, including identifying new geophysical targets for

potential follow-up work which may include geological mapping, rock sampling, and/or drilling.

Director Departure

The Company announces the resignation of Dr. Christopher Osterman from the Company’s Board of

Directors (the “Board”). Keith Neumeyer, Chairman of the Board, stated: “I would like to thank Chris for

all of his contributions to the Company and to the Board since First Mining’s inception at the end of March

2015. Chris has been a valuable member of the Board and we wish him great success in his future

endeavours."

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QA/QC Procedures

The QA/QC program for the 2019 drilling program at Miller consisted of the submission of duplicate

samples and the insertion of C ertified Reference Materials and blanks at regular intervals. These were

inserted at a rate of one standard for every 20 samples (5% of total) and one blank for every 30 samples

(3% of total). The standards used in the 2019 Miller drilling program range in grade from 0.5 g/t Au to 9.0

g/t Au, and were sourced from CDN Resource Laboratories in Langley, BC. Blanks have been sourced

locally from barren granitic material.

Field duplicates from quarte red core, as well as 'coarse' or 'pulp' duplicates taken from coarse reject

material or pulverized splits, were also submitted at regular intervals with an insertion rate of 4% for field

duplicates and 4% for coarse or pulp duplicates. Additional selected duplicates are being submitted to an

umpire lab for check assaying. SGS also undertakes its own internal coarse and pulp duplicate analysis to

ensure proper sample preparation and equipment calibration.

Qualified Person

Hazel Mullin, P.Geo., Director, Data Management and Technical Services of First Mining, is a “ Qualified

Person” for the purposes of NI 43 -101, and she has reviewed and approved the scientific and technical

disclosure contained in this news release.

About First Mining Gold Corp.

First Mining Gold Corp. is an emerging development company with a diversified portfolio of gold projects

in North America. Having assembled a large resource base of 7.4 million ounces of gold in the Measured

and Indicated categories and 3.8 million ounce s of gold in the Inferred category in mining friendly

jurisdictions of eastern Canada, First Mining is now focused on advancing its material assets towards a

construction decision and, ultimately, to production. The Company currently holds a portfolio of 2 4

mineral assets in Canada, Mexico and the United States.

ON BEHALF OF FIRST MINING GOLD CORP.

Daniel W. Wilton

Chief Executive Officer and Director

For further information, please contact:

Mal Karwowska | Vice President, Corporate Development & Investor Relations

Direct: 604.639.8824 | Toll Free: 1.844.306.8827 | Email: [email protected]

www.firstmininggold.com

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 Pri vate 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”,

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"potential”, "possible”, “strategy”, “goals”, “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 and include, but are not limited to, statements

with respect to: (i) the potential for Goldlund to host multiple gold deposits within close proximity of the currently

defined resource area at the project ; (ii) the potential for resource growth at Go ldlund, both at the Goldlund Main

Zone, and at other areas of the property through further regional exploration; (iii) the Company’s belief that it has

delineated the boundaries of mineralization at Miller to the southwest ; (iv) the Company’s plans to furt her its

understanding of the extent of mineralization to the northeast and potential parallel zones; (v) the northeast area at

Miller still being a viable target for follow-up soil and rock sampling; (vi) defining and extending mineralization in the

eastern portions of Zones 1, 2, 3 and 4; (vii) the Company’s focus on advancing its material assets towards production;

and ( viii) realizing and unlocking the value of the Company’s gold projects for the Company’s shareholders. 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. Many factors, both known and unknown, could cause actual results,

performance or achievements to be materially different from the results, performance or achievements that are or

may be expressed or implied by such forward- looking statements and the parties have made assumptions and

estimates based on or related to many of these factors. Such factors include, without limitation: the presence of and

continuity of metals at Goldlund at estimated grades; success in realizing proposed drilling programs; fluctuations in

the spot and forward price of gold, silver, base metals or certai n 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 and exploration drilling programs, 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, 2018 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.

First Mining cautions that the foregoing list of factors that may affect future results is not exhaustive. When relying

on our forw ard-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

This news release has been prepared in accordance with the requirements of the securities laws in effect in Canada,

which differ from the requirements of U.S. securities laws. Unless otherwise indicated, all resource and reserve

estimates included in this news release have been prepared in accordance with NI 43-101 and the Canadian Institute

of Mining, Metallurgy, and Petroleum 2014 Definition Standards on Mineral Resources and Mineral Reserves. NI 43 -

101 is a rule developed by the Canadian Securities Administrators which establishes standards for all public disclosure

an issuer makes of scient ific and technical information concerning mineral projects. Canadian standards, including

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NI 43- 101, differ significantly from the requirements of the SEC, and mineral resource and reserve information

contained herein may not be comparable to similar infor mation disclosed by U.S. companies. In particular, and

without limiting the generality of the foregoing, the term "resource” does not equate to the term "reserves”. Under

U.S. standards, mineralization may not be classified as a "reserve” unless the determination has been made that the

mineralization could be economically and legally produced or extracted at the time the reserve determination is

made. The SEC's disclosure standards normally do not permit the inclusion of information concerning "measured

mineral resources”, "indicated mineral resources” or "inferred mineral resources” or other descriptions of the amount

of mineralization in mineral deposits that do not constitute "reserves” by U.S. standards in documents filed with the

SEC. Investors are caut ioned not to assume that any part or all of mineral deposits in these categories will ever be

converted into reserves. U.S. investors should also understand that "inferred mineral resources” have a great amount

of uncertainty as to their existence and great uncertainty as to their economic and legal feasibility. It cannot be

assumed that all or any part of an "inferred mineral resource” will ever be upgraded to a higher category. Under

Canadian rules, estimated "inferred mineral resources” may not form the basis of feasibility or pre-feasibility studies

except in rare cases. Investors are cautioned not to assume that all or any part of an "inferred mineral resource”

exists or is economically or legally mineable. Disclosure of "contained ounces” in a resource is permitted disclosure

under Canadian regulations; however, the SEC normally only permits issuers to report mineralization that does not

constitute "reserves” by SEC standards as in- place tonnage and grade without reference to unit measures. The

requirements of NI 43 -101 for identification of "reserves” are also not the same as those of the SEC, and reserves

reported by the Company in compliance with NI 43 -101 may not qualify as "reserves” under SEC standards.

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.