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First Mining Temporarily Suspends Operations in Ontario and Provides COVID-19 Response

Production Results Mine Development & Operations

TSX: FF

OTCQX: FFMGF

FRANKFURT: FMG

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NEWS RELEASE

First Mining Temporarily Suspends Operations in Ontario

and Provides COVID-19 Response

March 24, 2020 – Vancouver, BC – First Mining Gold Corp. (“First Mining” or the “Company”) (TSX: FF)

(OTCQX: FFMGF) (FRANKFURT: FMG) announced today that it has commenced the demobilization of

employees and contractors at its 100%-owned Springpole Gold Project (“Springpole”) and its 100%-owned

Goldlund Gold Project (“Goldlund”), both located in northwestern Ontario.

To date, First Mining has not had any cases of COVID -19 at its camp operations or its head office in

Vancouver. The health and safety of First Mining’s workforce, their families and the communities in which

the Company operates remains First Mining’s number one concern. In the interests of the health and well-

being of our employees, contractors, visitors to our office and operations, and the families of all such

persons, First Mining has also implemented a work from home policy for its employees until further

notice. First Mining is committed to fully supporting safety measures for our workforce, families and

communities.

At Springpole, the Company demobilized one of its two drill crews last weekend. In order to ensure th e

health and safety of all its employees the Company had intended to complete the current shift rotation

while limiting access to site for any new individuals. Work at site was nearing completion ahead of a

planned reduction in on -site activities until aft er the spring ice break -up. However, due to the current

environment, First Mining has decided to demobilize the remaining contractors and staff and keep

Springpole on care and maintenance until it is able to restart its work programs planned for later in t he

spring and summer of 2020.

At Goldlund, drill crews have been demobilized. Given the significant amount of drilling that has taken

place at Goldlund this year ( approximately 4,900 metres), this will allow First Mining’s geology team to

receive assays and interpret results before planning the remainder of the 2020 drill program.

Management will continue to monitor the COVID -19 situation and adjust plans as the situation evolves.

First Mining thanks our workforce, partners and all stakeholders for their understanding and support, and

looks forward to resuming field operations as soon as possible.

As of March 6, 2020, after completing its latest financing, First Mining had cash and cash equivalents of

approximately $12 million.

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 a Canadian -focused gold exploration and development company advancing 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 Infe rred category. First Mining’s primary focus is the development and permitting

TSX: FF

OTCQX: FFMGF

FRANKFURT: FMG

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of its Springpole Gold Project and the advanced exploration of its Goldlund Gold Project, both located in

northwestern Ontario. Springpole is one of the largest undeveloped gold assets in Canada, with permitting

and a Pre-Feasibility Study underway. Goldlund is an advanced exploration stage asset where drilling in

2020 is planned to define both the extension of the existing resource area and to better define the regional

scale potential. First Mining’s eastern Canadian property portfolio also includes Cameron, Pickle Crow,

Hope Brook, Duparquet, Duquesne, and Pitt.

First Mining was created 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:

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”,

"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 timeframe for the suspension of operations at Springpole and Goldlund, and for Springpole

being kept on care and maintenance; (ii) the timeframe for the Company’s work from home policy; (iii) the timing for

the receipt of outstanding assays for Goldlund and the interpretation of the results of such assays; (iv) the timeframe

of the COVID -19 pandemic and the potential for plans to be adjusted further as the situation evolves ; (v) the

Company’s primary focus on developing and permitting Springpole and the advanced exploration of its Goldlund Gold

Project; and ( vi) realizing 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 Company’s business, operations and financial condition

TSX: FF

OTCQX: FFMGF

FRANKFURT: FMG

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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 t o 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 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 M ineral 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. Canadi an 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 economicall y 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 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 canno t 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 cas es. 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.