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First Mining Advancing the Springpole Gold Project to Pre-Feasibility Agreement with Ausenco to Complete Pre-Feasibility Study for Springpole; Ausenco to Receive Payment in Restricted Common Shares and Become a First Mining Shareholder

Economic Studies

TSX: FF

OTCQX: FFMGF

FRANKFURT: FMG

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NEWS RELEASE

First Mining Advancing the Springpole Gold Project to Pre-Feasibility

Agreement with Ausenco to Complete Pre-Feasibility Study for Springpole; Ausenco to Receive

Payment in Restricted Common Shares and Become a First Mining Shareholder

November 14, 2019 – Vancouver, BC – First Mining Gold Corp. (“First Mining” or the “Company”) (TSX:

FF) (OTCQX: FFMGF) (FRANKFURT: FMG) is pleased to announce that it has entered into an agreement

with Ausenco Engineering Canada Inc. (“Ausenco”) to complete a Pre -Feasibility Study (“PFS”) for the

Springpole Gold Project, located in northwestern Ontario, Canada (the “Project”). Ausenco has elected to

receive shares of First Mining as consideration for its engineering services.

Dan Wilton, CEO of First Mining, stated “We are very excited to be partnering with Ausenco to continue

to advance the Springpole Gold Project. This marks a key milestone in the Project’s development and goes

hand-in-hand with our focus on de -risking Springpole and advancing the Project through the

environmental assessment process. Ausenco is one of the strongest partnerships we could have formed

for this next step of development, given their proven track record, not just in delivering rigorous technical

studies, but also in project delivery, construction and operations. Ausenco becoming a shareholder of First

Mining demonstrates the strong belief by one of the premier mining-focused engineering firms in the

technical merits and development potential of Springpole.”

Ausenco is a global, diversified engineering, construction and project management company providing

consulting, project delivery and asset management solutions to the resources, energy and infrastructure

sectors. Ausenco has significant experience in the study and execution of projects similar to Springpole,

with substantial recent experience in eastern Canada including the Feasibility Study (“FS”) and subsequent

EPC execution of the Moose River Consolidated Gold Project for Atlantic Gold (now a subsidiary of St.

Barbara), Marathon Gold’s Valentine Lake PFS and Anaconda Mining’s Goldboro FS.

The PFS follows on the back of the updated Preliminary Economic Assessment (“PEA”) for the Springpole

Gold Project that the Company recently announced on October 16, 2019, which outlines a 36,000 tonne-

per-day mine and mill capable of producing an average of 410,000 ounces of gold in years 2 to 9 of the

12-year mine life . Using the base case gold price of US$1,300/oz and the base case silver price of

US$20/oz, the PEA showed a pre-tax NPV5% of US$1.23 billion (US$841 million after-tax) and a pre-tax IRR

of 26% (22% after-tax). At a gold price of US$1,500/oz, this increases to a pre-tax NPV5% of US$1.75 billion

(US$1.22 billion after-tax) with a pre-tax IRR of 33% (28% after-tax). Readers are encouraged to review

the October 16, 2019 news release for details about the up dated Springpole PEA , or the full technical

report which is available under First Mining’s SEDAR profile and on the Company’s website.

Readers are cautioned that the PEA is preliminary in nature and includes Inferred mineral resources that

are too speculative geologically to have economic considerations applied to them that would enable them

to be categorized as mineral re serves. There is no certainty that PEA results will be realized. Mineral

resources are not mineral reserves and do not have demonstrated economic viability.

The PFS will follow on from the work completed during the PEA phase, initially focusing on trade-off

studies and optimizations to define the ultimate project scope . The final project scope will then be

incorporated into the PFS. Work on the PFS is expected to commence by the end of this month.

TSX: FF

OTCQX: FFMGF

FRANKFURT: FMG

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In lieu of cash compensation, Ausenco or an affiliate will receive 100% of its estimated fees, which

approximate $1.6 million, in First Mining common shares, resulting in the issuance of 5,806,882 shares to

Ausenco by way of a private placement (subject to the approval of the Toronto Stock Exchange (“TSX”)).

A share price of $0.27, which was the price of the units issued by the Company in its May 2019 financing,

was used to calculate the number of common shares issuable to Au senco. The common shares will be

subject to a four-month hold period under applicable Canadian securities laws and will be held in escrow

until Ausenco delivers the final PFS to First Mining . Ausenco will be reimbursed by the Company in cash

for certain out-of-pocket expenses.

Qualified Person

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

Person” for the purposes of National Instrument 43-101 Standards of Disclosure for Mineral Projects (“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 ounces of gold in the Inferred category in mining friendly

jurisdictions of eastern Canada, First Mining is no w focused on advancing its material assets towards a

construction decision and, ultimately, to production. The Company currently holds a portfolio of 24

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 Private Securities Litigation Reform Act of 1995. These forward- looking statements are

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

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

"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.

TSX: FF

OTCQX: FFMGF

FRANKFURT: FMG

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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) Ausenco commencing work on the PFS by the end of November 2019; (ii) completion and timing

of the PFS; (iii) the PEA representing a viable development option for the Springpole Gold Project; (iv) construction of

a mine at the Project and related actions; (v) the estimated amount of future production, both produce d and metal

recovered; (vi) life of mine estimates, net cash flow, net present value and economic returns from an operating mine

constructed at the Project; and (vii) the completion of optimization studies on the Project as it is advanced through a

PFS. 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: (i) the presence of

and continuity of metals at the Springpole Gold Project at estimated grades; (ii) the geotechnical and metallurgical

characteristics of rock conforming to sampled res ults, including the quantities of water and the quality of the water

that must be diverted or treated during mining operations; (iii) the capacities and durability of various machinery and

equipment; (iv) the availability of personnel, machinery and equipment at estimated prices and within the estimated

delivery times; (v) currency exchange rates; (vi) metals sales prices and exchange rate assumed; (vii) appropriate

discount rates applied to the cash flows in the economic analysis in the PEA; (viii) tax rates and royalty rates applicable

to the proposed mining operation; (ix) the availability of acceptable financing under assumed structure and costs; (x)

metallurgical performance; (xi) reasonable contingency requirements; (xii) success in realizing proposed operations;

(xiii) receipt of permits and other regulatory approvals on acceptable terms; (xiv) the fulfillment of environmental

assessment commitments and arrangements with local communities ; and (xv) 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 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

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 scientific and technical information concerning mineral projects. Canadian standards, including

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 information 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

TSX: FF

OTCQX: FFMGF

FRANKFURT: FMG

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

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

SEC. Investors are cautioned 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.