# EDGAR Filing Document

**Accession Number:** 0001641229
**File Stem:** 0001654954-23-003827
**Filing Date:** 2023-3
**Character Count:** 727025
**Document Hash:** 98afff3c782597fa1b3cd6bdc9e660d7
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001654954-23-003827.hdr.sgml**: 20230329

**ACCESSION NUMBER**: 0001654954-23-003827

**CONFORMED SUBMISSION TYPE**: 40-F

**PUBLIC DOCUMENT COUNT**: 154

**CONFORMED PERIOD OF REPORT**: 20221231

**FILED AS OF DATE**: 20230329

**DATE AS OF CHANGE**: 20230329

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** First Mining Gold Corp.
- **CENTRAL INDEX KEY:** 0001641229
- **STANDARD INDUSTRIAL CLASSIFICATION:** GOLD & SILVER ORES [1040]
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** A1
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 40-F
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-55607
- **FILM NUMBER:** 23775784

**BUSINESS ADDRESS:**
- **STREET 1:** 1805-925 WEST GEORGIA STREET
- **CITY:** VANCOUVER
- **STATE:** A1
- **ZIP:** V6C 3L2
- **BUSINESS PHONE:** 604-639-8821

**MAIL ADDRESS:**
- **STREET 1:** 1805-925 WEST GEORGIA STREET
- **CITY:** VANCOUVER
- **STATE:** A1
- **ZIP:** V6C 3L2

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** First Mining Finance Corp.
- **DATE OF NAME CHANGE:** 20150504

?xml version="1.0" encoding="utf-8"?firstmining_40f.htm

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**WASHINGTON, D.C. 20549**

**FORM 40-F**

**☐&nbsp;&nbsp;&nbsp;&nbsp; REGISTRATION STATEMENT PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934**

OR

**☒&nbsp;&nbsp;&nbsp;&nbsp; ANNUAL REPORT PURSUANT TO SECTION 13(a) OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934**

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| | |
|:---|:---|
| For the fiscal year ended <u>December 31, 2022</u> | Commission File Number <u>000-55607</u> |

---

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| |
|:---|
| **FIRST MINING GOLD CORP.** |
| (Exact name of registrant as specified in its charter) |

---

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| | | |
|:---|:---|:---|
| **British Columbia, Canada** | **1040** | **Not Applicable** |
| (Province or other jurisdiction of <br>incorporation or organization) | (Primary Standard Industrial <br>Classification Code Number) | (I.R.S. Employer <br>Identification Number) |

---

**Suite 2070– 1188 West Georgia Street, Vancouver, British Columbia V6E 4A2, Canada <u>(604) 688-3033</u>**

(Address and telephone number of Registrant's principal executive offices)

**National Registered Agents, Inc.** <br>**1090 Vermont Avenue N.W., Suite 910**<br>**Washington DC. 20005**<br>**(202) 371-8090** <br>(Name, address (including zip code) and telephone number (including area code) of agent for service in the United States)<br>

Securities to be registered pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| Title of each class: | Trading Symbol(s) | Name of exchange on which registered: |
| **None** | N/A | **None** |

---

Securities registered pursuant to Section 12(g) of the Act: **Common Shares, no par value**

Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act: **None**

For annual reports, indicate by check mark the information filed with this Form.

☒ Annual information form&nbsp;&nbsp;&nbsp;&nbsp; ☒ Audited annual financial statements

Indicate the number of outstanding shares of each of the issuer's classes of capital or common stock as of the close of the period covered by the annual report. 802,226,149

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Exchange Act during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

☒ Yes&nbsp;&nbsp;&nbsp;&nbsp; ☐ No

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the Registrant was required to submit and post such files).

☒ Yes&nbsp;&nbsp;&nbsp;&nbsp; ☐ No

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 12b-2 of the Exchange Act.

Emerging growth company ☒

If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☐

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant's executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

**EXPLANATORY NOTE**

First Mining Gold Corp. (the "**Company**" or the "**Registrant**") is a Canadian issuer eligible, pursuant to Section 13 of the Securities Exchange Act, to file its annual report on Form 40-F pursuant to the multi-jurisdictional disclosure system of the Exchange Act. The Company is a "foreign private issuer" as defined in Rule 3b-4 under the Exchange Act. Equity securities of the Company are accordingly exempt from Sections 14(a), 14(b), 14(c), 14(f) and 16 of the Exchange Act pursuant to Rule 3a12-3.

**FORWARD-LOOKING STATEMENTS**

This annual report on Form 40-F and the exhibits attached hereto contain "**forward-looking statements**" within the meaning of the United States Private Securities Litigation Reform Act of 1995 and "**forward-looking information**" within the meaning of applicable Canadian securities legislation. Forward-looking statements, which are all statements other than statements of historical fact, include, but are not limited to, statements with respect to the future price of commodities, the estimation of mineral reserves and mineral resources, the realization of mineral reserve estimates, the timing and amount of estimated future production, costs of production, reserve determination and reserve conversion rates. Generally, these forward-looking statements can be identified by the use of forward-looking terminology such as "plans", "expects" or "does not expect", "is expected", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates" or "does not anticipate", or "believes", or variations of such words and phrases or statements that certain actions, events or results "may", "could", "would", "might" or "will be taken", "occur" or "be achieved". Forward-looking statements are subject to known and unknown risks, uncertainties and other factors that may cause the actual results, level of activity, performance or achievements of the Company to be materially different from those expressed or implied by such forward-looking statements, including but not limited to: fluctuations in the price of commodities; expectations and anticipated impact of the COVID-19 pandemic; risks related to mining and exploration operations including risks related to fluctuations in the price of the primary commodities mined at such operations, actual results of mining and exploration activities, economic and political risks of the jurisdictions in which the mining and exploration operations are located, changes in project parameters as plans continue to be refined; and differences in the interpretation or application of tax laws and regulations; as well as those factors discussed in the section entitled "*Risks that can affect our business*" in the Company's annual information form (the "**AIF**") for the financial year ended December 31, 2022. Forward-looking statements are based on assumptions management believes to be reasonable, including but not limited to: no material adverse change in the market price of commodities, that the mining and exploration operations will operate and the mining projects will be completed in accordance with their public statements and achieve their stated production outcomes, and such other assumptions and factors as set out herein. Although the Company has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking statements, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that forward-looking statements will prove to be accurate. Accordingly, readers should not place undue reliance on forward-looking statements. The forward-looking statements and forward-looking information contained or incorporated by reference in this annual report on Form 40-F are included for the purpose of providing investors with information to assist them in understanding the Company's expected financial and operational performance and may not be appropriate for other purposes. The Company does not undertake to update any forward-looking statements that are included or incorporated by reference herein, except in accordance with applicable securities laws.

**NOTE TO UNITED STATES READERS – DIFFERENCES**

**IN UNITED STATES AND CANADIAN REPORTING PRACTICES**

The Company is permitted, under a multi-jurisdictional disclosure system adopted by the United States, to prepare this annual report on Form 40-F in accordance with Canadian disclosure requirements, which are different from those of the United States. The Company prepares its financial statements (the "**Audited Financial Statements**") in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board ("**IFRS**").

The AIF filed as Exhibit 99.1 to this annual report on Form 40-F has been prepared in accordance with the requirements of the securities laws in effect in Canada, which differ from the requirements of United States securities laws. The terms "Mineral Reserve", "Proven Mineral Reserve" and "Probable Mineral Reserve" are Canadian mining terms as defined in accordance with Canadian National Instrument 43-101 *Standards of Disclosure for Mineral Projects* ("**NI 43-101**") and the Canadian Institute of Mining, Metallurgy and Petroleum ("**CIM**") Definition Standards on Mineral Resources and Mineral Reserves, adopted by the CIM Council, as amended. These definitions differ from the definitions in the United States Securities and Exchange Commission (the "**SEC**") rules applicable to domestic United States companies.

Accordingly, information contained in this annual report on Form 40-F and the documents incorporated by reference herein containing descriptions of the Company's mineral deposits may not be comparable to similar information made public by U.S. companies subject to the reporting and disclosure requirements under the United States federal securities laws and the rules and regulations thereunder.

**CURRENCY**

Unless otherwise indicated, all dollar amounts in this annual report on Form 40-F are in Canadian dollars. The functional currency of the Company and its Canadian subsidiaries is the Canadian dollar while the functional currency of the Company's non-Canadian subsidiaries is the US dollar. The financial statement presentation currency is the Canadian dollar. The expenditures of our Canadian operations where incurred in currencies other than Canadian dollars are translated at the exchange rates in effect at the date of the underlying transactions. Differences arising from these foreign currency transactions are recorded in the consolidated statement of net loss.

**ANNUAL INFORMATION FORM**

The AIF is filed as Exhibit 99.1 to, and incorporated by reference in, this annual report on Form 40-F.

**AUDITED ANNUAL FINANCIAL STATEMENTS**

The Audited Financial Statements for the year ended December 31, 2022, including the report of the independent registered public accounting firm with respect thereto, is filed as Exhibit 99.2 to, and incorporated by reference in, this annual report on Form 40-F.

Our independent registered public accounting firm is PricewaterhouseCoopers LLP, Vancouver, British Columbia, Canada, PCAOB Firm ID: 271.

**MANAGEMENT'S DISCUSSION AND ANALYSIS**

The Company's management's discussion and analysis of results of operations and financial condition for the year ended December 31, 2022 is filed as Exhibit 99.3 to, and incorporated by reference in, this annual report on Form 40-F.

**CERTIFICATIONS**

See Exhibits 99.4, 99.5, 99.6 and 99.7, which are included as Exhibits to this annual report on Form 40-F.

**DISCLOSURE CONTROLS AND PROCEDURES**

**Evaluation of Disclosure Controls and Procedures**

As of the end of the period covered by this annual report on Form 40-F, an evaluation was carried out under the supervision of, and with the participation of, the Company's management, including the Chief Executive Officer ("**CEO**") and Chief Financial Officer ("**CFO**"), of the effectiveness of the Company's disclosure controls and procedures (as defined in Rule 13a – 15(e) and Rule 15d – 15(e) under the Exchange Act). Based upon the results of that evaluation, the CEO and the CFO have concluded that as of the end of the period covered by this annual report on Form 40-F, the Company's disclosure controls and procedures were effective. Disclosure controls and procedures include controls and other procedures that are designed to ensure that (i) information required to be disclosed by the Company in reports that it files or submits to the SEC under the Exchange Act is recorded, processed, summarized and reported within the appropriate time periods specified in applicable rules and forms and (ii) information required to be disclosed by the Company in reports filed under the Exchange Act is accumulated and communicated to the Company's management, including the CEO and CFO, as appropriate, to allow for accurate and timely decisions regarding required disclosure.

**Management's Report on Internal Control over Financial Reporting**

The Company's management, with the participation of the CEO and CFO, is responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act. The Company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation and fair presentation of financial statements for external purposes in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board. The Company's internal control over financial reporting includes policies and procedures that:

· maintain records that accurately and fairly reflect, in reasonable detail, the transactions and dispositions of assets of the Company;

· provide reasonable assurance that transactions are recorded as necessary for preparation of financial statements in accordance with IFRS;

· provide reasonable assurance that the Company's receipts and expenditures are made only in accordance with authorizations of management and the Company's Directors; and

· provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the Company's assets that could have a material effect on the Company's consolidated financial statements.

Because of its inherent limitations, the Company's internal control over financial reporting may not prevent or detect misstatements. Additionally, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Management assessed the effectiveness of the Company's internal control over financial reporting as of December 31, 2022, based on the criteria set forth in *Internal Control – Integrated Framework (2013)* issued by the Committee of Sponsoring Organizations of the Treadway Commission. This evaluation included review of the documentation of controls, evaluation of the design effectiveness of controls, testing of the operating effectiveness of controls and a conclusion on this evaluation. Based on this evaluation, management has concluded that the Company's internal control over financial reporting was effective and no material weakness was identified as at December 31, 2022.

**Attestation Report of the Registered Public Accounting Firm** 

This Annual Report on Form 40-F does not include an attestation report of the Company's independent registered public accounting firm regarding internal control over financial reporting because the Company qualified as an "emerging growth company" pursuant to Section 2(a)(19) of the Securities Act of 1933 during the year covered by this Annual Report on Form 40-F, and this Annual Report on Form 40-F is therefore not required to include such an attestation report.

**Changes in Internal Control over Financial Reporting**

During the period covered by this annual report on Form 40-F, no change occurred in the Company's internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting.

**Limitations of Controls and Procedures**

The Company's management, including the CEO and CFO, does not expect that its disclosure controls and procedures or internal controls and procedures will prevent all error and all fraud. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within the Company have been detected. These inherent limitations include the realities that judgments in decision-making can be faulty, and that breakdowns can occur because of simple error or mistake. Additionally, controls can be circumvented by the individual acts of some persons, by collusion of two or more people, or by management override of the control. The design of any system of controls also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions; over time, control may become inadequate because of changes in conditions, or the degree of compliance with the policies or procedures may deteriorate. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.

**AUDIT COMMITTEE**

**Audit Committee**

The Company's board of directors has a separately designated standing audit committee established in accordance with section 3(a)(58)(A) of the Exchange Act. The members of the Company's audit committee are identified on page 126 of the AIF, filed as Exhibit 99.1 and incorporated by reference herein. The Company's board of directors has determined that all members of the audit committee are independent (as determined under Rule 10A-3 of the Exchange Act and the rules of the New York Stock Exchange) and are financially literate.

**Audit Committee Financial Expert**

The Company's board of directors has determined that Raymond Polman is an audit committee "financial expert" as defined in Item 407(d)(5)(ii) of Regulation S-K under the Exchange Act, in that he has an understanding of generally accepted accounting principles in Canada and financial statements and is able to assess the general application of accounting principles in connection with the accounting for estimates, accruals and reserves. Mr. Polman also has experience preparing, auditing, analyzing or evaluating financial statements that present a breadth and level of complexity of accounting issues that are generally comparable to the breadth and complexity of issues that can reasonably be expected to be raised by the Company's financial statements (or actively supervising another person who did so). Mr. Polman also has an understanding of internal controls and procedures for financial reporting and an understanding of audit committee functions. Mr. Polman has experience as a principal financial officer, principal accounting officer, controller, public accountant or auditor.

**CODE OF ETHICS**

The Company has adopted a written Code of Business Conduct and Ethics. A copy of this code is available on the Company's website at http://www.firstmininggold.com or to any person without charge, by written request addressed to: First Mining Gold Corp., Attention: General Counsel & Corporate Secretary, Suite 2070 – 1188 West Georgia Street, Vancouver, British Columbia V6E 4A2, Canada 1.844.306.8827, or by email (info@firstmininggold.com).

If any amendment to the Code of Business Conduct and Ethics is made, or if any waiver from the provisions thereof is granted, the Company may elect to disclose the information about such amendment or waiver required by Form 40-F to be disclosed, by posting such disclosure on the Company's website.

**PRINCIPAL ACCOUNTANT FEES AND SERVICES**

PricewaterhouseCoopers LLP served as the Registrant's principal accountant (the "**Principal Accountant**") for the year ended December 31, 2022. See page 135 of the AIF, which is attached hereto as Exhibit 99.1, for the total amount billed to the Company by PricewaterhouseCoopers LLP for services performed in the last two financial years by category of service (for audit fees, audit-related fees, tax fees and all other fees) in Canadian dollars.

**AUDIT COMMITTEE PRE-APPROVAL POLICIES AND PROCEDURES**

Since the enactment of the Sarbanes-Oxley Act of 2002 on July 30, 2002, all audit and non-audit services performed by the Registrant's outside auditors are pre-approved by the audit committee of the Registrant.

**OFF-BALANCE SHEET ARRANGEMENTS**

The Company does not have any off-balance sheet arrangements that have or are reasonably likely to have a current or future effect on its financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures or capital resources that is material to investors, or relationships with unconsolidated special purpose entities.

**CASH REQUIREMENTS**

The information provided under the heading "Management's Discussion and Analysis – Financial Instruments – Financial Liabilities and Commitments" contained in Exhibit 99.3 as filed with this annual report on Form 40-F contains the Company's disclosure of contractual obligations and is incorporated by reference herein.

**MINE SAFETY DISCLOSURE**

Not applicable.

**DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS**

Not applicable.

**RECOVERY OF ERRONEOUSLY AWARDED COMPENSATION**

Not applicable.

**UNDERTAKINGS**

The Company undertakes to make available, in person or by telephone, representatives to respond to inquiries made by the SEC staff, and to furnish promptly, when requested to do so by the SEC staff, information relating to: the securities registered pursuant to Form 40-F; the securities in relation to which the obligation to file an annual report on Form 40-F arises; or transactions in said securities.

**CONSENT TO SERVICE OF PROCESS**

The Company filed an Appointment of Agent for Service of Process and Undertaking on Form F-X with respect to the class of securities in relation to which the obligation to file this annual report on Form 40-F arises.

**EXHIBIT INDEX**

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| | |
|:---|:---|
| **Exhibit** | **Description** |
| [99.1](firstmining_ex991.htm) | [Annual Information Form of the Company for the year ended December 31, 2022](firstmining_ex991.htm) |
| [99.2](firstmining_ex992.htm) | [Audited consolidated financial statements of the Company and the notes thereto for the years ended December 31, 2022 and 2021, together with the report of the independent registered public accounting firm](firstmining_ex992.htm) |
| [99.3](firstmining_ex993.htm) | [Management's Discussion and Analysis for the year ended December 31, 2022](firstmining_ex993.htm) |
| [99.4](firstmining_ex994.htm) | [CEO Certification pursuant to Rule 13a-14(a) or 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002](firstmining_ex994.htm) |
| [99.5](firstmining_ex995.htm) | [CFO Certification pursuant to Rule 13a-14(a) or 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002](firstmining_ex995.htm) |
| [99.6](firstmining_ex996.htm) | [CEO Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002](firstmining_ex996.htm) |
| [99.7](firstmining_ex997.htm) | [CFO Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002](firstmining_ex997.htm) |
| [99.8](firstmining_ex998.htm) | [Consent of Dr. Gilles Arseneau, Ph.D., P.Geo., of SRK Consulting (Canada) Inc.](firstmining_ex998.htm) |
| [99.9](firstmining_ex999.htm) | [Consent of Gordon Zurowski, P.Eng., of AGP Mining Consultants Inc.](firstmining_ex999.htm) |
| [99.10](firstmining_ex9910.htm) | [Consent of Roland Tosney, P.Eng., of AGP Mining Consultants Inc.](firstmining_ex9910.htm) |
| [99.11](firstmining_ex9911.htm) | [Consent of Cameron McCarthy, P.Eng., P.Geo., P.Tech., of Swiftwater Consulting Ltd.](firstmining_ex9911.htm) |
| [99.12](firstmining_ex9912.htm) | [Consent of Duke Reimer, P.Eng., of Knight Pièsold Ltd.](firstmining_ex9912.htm) |
| [99.13](firstmining_ex9913.htm) | [Consent of Dr. Adrian Dance, Ph.D., P.Eng. (BC # 37151), FAusIMM, of SRK Consulting (Canada) Inc.](firstmining_ex9913.htm) |
| [99.14](firstmining_ex9914.htm) | [Consent of Marina Iund, P.Geo., M.Sc., of InnovExplo Inc.](firstmining_ex9914.htm) |
| [99.15](firstmining_ex9915.htm) | [Consent of Simon Boudreau, P. Eng., M.Sc., of InnovExplo Inc.](firstmining_ex9915.htm) |
| [99.16](firstmining_ex9916.htm) | [Consent of Carl Pelletier, P.Geo., of InnovExplo Inc.](firstmining_ex9916.htm) |
| [99.17](firstmining_ex9917.htm) | [Consent of Guy Comeau, P.Eng., of Soutex Inc.](firstmining_ex9917.htm) |
| [99.18](firstmining_ex9918.htm) | [Consent of Mark Drabble, B.App.Sci (Geology), MAIG, MAusIMM, of Optiro Pty Limited](firstmining_ex9918.htm) |
| [99.19](firstmining_ex9919.htm) | [Consent of Kahan Cervoj, B.App.Sci (Geology), MAIG, MAusIMM, of Optiro Pty Limited](firstmining_ex9919.htm) |

---

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| | |
|:---|:---|
| [99.20](firstmining_ex9920.htm) | [Consent of Hazel Mullin, P.Geo., of First Mining Gold Corp.](firstmining_ex9920.htm) |
| [99.21](firstmining_ex9921.htm) | [Consent of Louis Martin, P.Geo., of First Mining Gold Corp.](firstmining_ex9921.htm) |
| [99.22](firstmining_ex9922.htm) | [Consent of PricewaterhouseCoopers LLP, Independent Registered Public Accounting Firm](firstmining_ex9922.htm) |
| 101.INS | XBRL Instance Document |
| 101.SCH | XBRL Taxonomy Extension Schema Document |
| 101.CAL | XBRL Taxonomy Extension Calculation Linkbase Document |
| 101.DEF | XBRL Taxonomy Definition Linkbase Document |
| 101.LAB | XBRL Taxonomy Extension Label Linkbase Document |
| 101.PRE | XBRL Taxonomy Extension Presentation Linkbase Document |
| 104 | Cover Page Interactive Data File |

---

**SIGNATURES**

Pursuant to the requirements of the Exchange Act, the Registrant certifies that it meets all of the requirements for filing on Form 40-F and has duly caused this annual report to be signed on its behalf by the undersigned, thereto duly authorized.

Date: March 29, 2023.

---

| | |
|:---|:---|
| **FIRST MINING GOLD CORP.** | **FIRST MINING GOLD CORP.** |
| By: | */s/ Daniel W. Wilton* |
|  | Daniel W. Wilton |
|  | Chief Executive Officer |

---

## Exhibit 99.2

?xml version="1.0" encoding="utf-8"?firstmining_ex992.htm

**EXHIBIT 99.2**

![firstmining_ex991img1.jpg](firstmining_ex991img1.jpg)

**First Mining Gold Corp.**

**Consolidated Financial Statements**

**For the years ended December 31, 2022 and 2021**

**(Expressed in thousands of Canadian dollars unless otherwise noted)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**![firstmining_ex992img3.jpg](firstmining_ex992img3.jpg)

**Report of Independent Registered Public Accounting Firm**

To the Shareholders and Board of Directors of First Mining Gold Corp.

**Opinion on the Financial Statements**

We have audited the accompanying consolidated statements of financial position of First Mining Gold Corp. and its subsidiaries (together, the Company) as of December 31, 2022 and 2021, and the related consolidated statements of net loss and comprehensive income (loss), cash flows and changes in equity for the years then ended, including the related notes (collectively referred to as the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2022 and 2021, and its financial performance and its cash flows for the years then ended in conformity with International Financial Reporting Standards as issued by the International Accounting Standards Board.

**Basis for Opinion**

These consolidated financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits of these consolidated financial statements in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

![firstmining_ex992img4.jpg](firstmining_ex992img4.jpg)

Chartered Professional Accountants

Vancouver, Canada

March 29, 2023

We have served as the Company's auditor since 2017.

PricewaterhouseCoopers LLP

PricewaterhouseCoopers Place, 250 Howe Street, Suite 1400, Vancouver, British Columbia, Canada V6C 3S7 T: +1 604 806 7000, F: +1 604 806 7806

"PwC" refers to PricewaterhouseCoopers LLP, an Ontario limited liability partnership.

---

| | | |
|:---|:---|:---|
|  | **December 31, 2022** | **December 31,**<br>**2021** |
| **ASSETS** |  |  |
| **Current&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Cash and cash equivalents  | $13558 | $29516 |
| &nbsp;&nbsp;&nbsp;&nbsp;Investments (Note 5) | 184 | 13386 |
| &nbsp;&nbsp;&nbsp;&nbsp;Prepaid expenses, accounts and other receivables (Note 6)  | 1118 | 1009 |
| **Total current assets&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**  | 14860 | 43911 |
| **Non-current** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Mineral properties (Note 7) | 221147 | 170017 |
| &nbsp;&nbsp;&nbsp;&nbsp;Investment in Treasury Metals Inc. (Note 8) | 5592 | 15400 |
| &nbsp;&nbsp;&nbsp;&nbsp;Investment in PC Gold Inc. (Note 9) | 21572 | 21570 |
| &nbsp;&nbsp;&nbsp;&nbsp;Investment in Big Ridge Gold Corp. (Note 10) | 2119 | 1491 |
| &nbsp;&nbsp;&nbsp;&nbsp;Mineral property investments  |  | 6435 |
| &nbsp;&nbsp;&nbsp;&nbsp;Property and equipment | 1373 | 1086 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other assets  | 270 | 399 |
| **Total non-current assets** | 252073 | 216398 |
| **TOTAL ASSETS** | $266933 | $260309 |
| **LIABILITIES** |  |  |
| **Current** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Accounts payable and accrued liabilities (Note 12) | $2847 | $4491 |
| &nbsp;&nbsp;&nbsp;&nbsp;Current portion of lease liability  | 143 | 127 |
| &nbsp;&nbsp;&nbsp;&nbsp;Flow-through share premium liability (Note 13) | 1042 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Option – PC Gold (Note 7(d)) | 5216 | 4347 |
| **Total current liabilities&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**  | 9248 | 8965 |
| **Non-current** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Lease liability | 172 | 315 |
| &nbsp;&nbsp;&nbsp;&nbsp;Provision for environmental remediation (Note 7(b)) | 1500 | - |
| &nbsp;&nbsp;&nbsp;&nbsp;Provision for Pickle Crow reclamation funding (Note 7(d)) | 1172 | 990 |
| &nbsp;&nbsp;&nbsp;&nbsp;Silver Stream derivative liability (Note 11) | 27171 | 26114 |
| **Total non-current liabilities** | 30515 | 27419 |
| **TOTAL LIABILITIES**  | 39263 | 36384 |
| **SHAREHOLDERS' EQUITY** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Share capital (Note 14) | 340963 | 318499 |
| &nbsp;&nbsp;&nbsp;&nbsp;Warrant and share-based payment reserve (Note 14) | 49589 | 47282 |
| &nbsp;&nbsp;&nbsp;&nbsp;Accumulated other comprehensive (loss) gain | (4337) | 410 |
| &nbsp;&nbsp;&nbsp;&nbsp;Accumulated deficit | (158545) | (142266) |
| **Total shareholders' equity** | 227670 | 223925 |
| **TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY** | $266933 | $260309 |

---

Subsequent Events (Note 22)&nbsp;&nbsp;&nbsp;&nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

The consolidated annual financial statements were approved by the Board of Directors:

---

| | |
|:---|:---|
| Signed: "Keith Neumeyer", Director  | Signed: "Raymond Polman", Director  |

---

*The accompanying notes are an integral part of these consolidated annual financial statements.*

---

| | | |
|:---|:---|:---|
|  | **Year Ended December 31,** | **Year Ended December 31,** |
|  | **2022** | **2021**  |
| **OPERATING EXPENSES** (Note 15) |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;General and administration  | $4962 | $6265 |
| &nbsp;&nbsp;&nbsp;&nbsp;Exploration and evaluation  | 639 | 960 |
| &nbsp;&nbsp;&nbsp;&nbsp;Investor relations and marketing communications  | 1394 | 2247 |
| &nbsp;&nbsp;&nbsp;&nbsp;Corporate development and due diligence  | 421 | 509 |
| &nbsp;&nbsp;&nbsp;&nbsp;Fair value adjustment of non-current assets (Note 8, 10) | 10361 | 24304 |
| Loss from operational activities | (17777) | (34285) |
| **OTHER ITEMS** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Gain on deconsolidation of subsidiary  |  | 8830 |
| &nbsp;&nbsp;&nbsp;&nbsp;Fair value loss on Silver Stream liability (Note 11) | (1057) | (3046) |
| &nbsp;&nbsp;&nbsp;&nbsp;Fair value loss on PC Gold Option | (869) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Investments fair value loss (Note 5) | (1606) | (4210) |
| &nbsp;&nbsp;&nbsp;&nbsp;Foreign exchange gain (loss) | 38 | (99) |
| &nbsp;&nbsp;&nbsp;&nbsp;Other expenses  | (318) | (98) |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest and other income  | 264 | 422 |
| &nbsp;&nbsp;&nbsp;&nbsp;Gain on sale of mineral properties (Note 8(a)) | 5728 | - |
| **Loss before income taxes** | $**(15597)** | $**(32486)** |
| Deferred income tax recovery | 309 |  |
| Equity loss and dilution impacts of equity accounted investments (Notes 8, 9 & 10) | (991) | (5864) |
| **Net loss for the year** | $**(16279)** | $**(38350)** |
| **OTHER COMPREHENSIVE INCOME (LOSS)** |  |  |
| *Items that will not be reclassified to net income or (loss):* |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Investments fair value (loss) gain (Note 5) | (1227) | 2094 |
| &nbsp;&nbsp;&nbsp;&nbsp;Mineral property investments fair value loss (Note 7(b)) | (3537) | (293) |
| *Items that are or may be reclassified to net income or (loss):* |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Currency translation adjustment of foreign subsidiaries | 17 | 1 |
| Other comprehensive (loss) income | (4747) | 1802 |
| **Net loss and comprehensive loss for the year** | $**(21026)** | $**(36548)** |
| Loss per share (in dollars) |  |  |
| Basic and diluted | $(0.02) | $(0.05) |
| Weighted average number of shares outstanding <br>Basic and diluted | 738197818 | 698677526 |

---

*The accompanying notes are an integral part of these consolidated annual financial statements.*

---

| | | |
|:---|:---|:---|
|  | **Year Ended December 31,** | **Year Ended December 31,** |
|  | **2022** | **2021** |
| **Cash flows from operating activities** |  |  |
| Net loss for the year | $(16279) | $(38350) |
| Adjustments for: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Fair value adjustment of non-current assets | 10361 | 24304 |
| &nbsp;&nbsp;&nbsp;&nbsp;Gain on deconsolidation of subsidiary |  | (8830) |
| &nbsp;&nbsp;&nbsp;&nbsp;Share-based payments (Note 14(d)) | 1573 | 1998 |
| &nbsp;&nbsp;&nbsp;&nbsp;Gain on sale of royalty (Note 8(a)) | (5872) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Depreciation | 411 | 320 |
| &nbsp;&nbsp;&nbsp;&nbsp;Fair value loss on PC Gold Option | 869 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Fair value loss on Silver Stream derivative liability (Note 11) | 1057 | 3046 |
| &nbsp;&nbsp;&nbsp;&nbsp;Loss on asset disposal | 33 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Investments fair value (gain) loss (Note 5) | 1606 | 4210 |
| &nbsp;&nbsp;&nbsp;&nbsp;Change in remediation reclamation funding estimate | 1682 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Other (income) expenses | 38 | (85) |
| &nbsp;&nbsp;&nbsp;&nbsp;Accrued interest receivable | (18) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Unrealized foreign exchange (gain) loss | (39) | 49 |
| &nbsp;&nbsp;&nbsp;&nbsp;Deferred income recovery expense | (309) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Equity and dilution loss on equity accounted investments | 991 | 5864 |
| **Operating cash flows before movements in working capital** | **(3896)** | **(7474)** |
| Changes in non-cash working capital items: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Decrease (increase) in accounts and other receivables | 124 | (18) |
| &nbsp;&nbsp;&nbsp;&nbsp;Decrease (increase) in prepaid expenditures | (77) | (19) |
| &nbsp;&nbsp;&nbsp;&nbsp;Increase (decrease) in accounts payables and accrued liabilities | (1233) | 1068 |
| **Total cash used in operating activities** | $**(5082)** | $**(6443)** |
| **Cash flows from investing activities** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Mineral property expenditures (Note 7) | (25113) | (15771) |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from sale of investments (Note 5) | 10479 | 16357 |
| &nbsp;&nbsp;&nbsp;&nbsp;Property and equipment purchases | (600) | (707) |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from sale of royalty (Note 8(a)) | 9581 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Cash expended in acquisitions | (10156) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Option payments and expenditures recovered | - | 1968 |
| **Total cash provided by (used in) investing activities** | $**(15809)** | $**1847** |
| **Cash flows from financing activities** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from private placements | 5325 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Share issuance costs | (271) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from Silver Stream (Note 11) |  | 4757 |
| &nbsp;&nbsp;&nbsp;&nbsp;Exercise of warrants and stock options |  | 668 |
| &nbsp;&nbsp;&nbsp;&nbsp;Repayment of lease liability | (127) | (112) |
| &nbsp;&nbsp;&nbsp;&nbsp;Finance costs paid | (38) | (50) |
| **Total cash provided by (used in) financing activities** | $**4889** | $**5263** |
| Foreign exchange effect on cash | 44 | (52) |
| **Change in cash and cash equivalents** | **(15958)** | **615** |
| **Cash and cash equivalents, beginning** | **29516** | **28901** |
| **Cash and cash equivalents, ending** | $**13558** | $**29516** |

---

Supplemental cash flow information (Note 19)

*The accompanying notes are an integral part of these consolidated annual financial statements.*

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Number of common** <br>**shares** | **Share capital** | **Warrant reserve** | **Share-based payment reserve** | **Accumulated other comprehensive income (loss)** | **Accumulated deficit** | **Total** |
| **Balance as at December 31, 2020** | **697216453** | $**317167** | $**25056** | $**19592** | $**(1392)** | $**(116870)** | $**243553** |
| Exercise of options (Note 10(d)) | 2287500 | 841 |  | (265) |  |  | 576 |
| Exercise of warrants (Note 10(c)) | 265650 | 94 | (2) |  |  |  | 92 |
| Shares issued in connection with mineral property tenure (Note 7) | 1107035 | 385 |  |  |  |  | 385 |
| Cameron Gold exploration agreement | 25000 | 12 | 9 |  |  |  | 21 |
| Share reduction due to expiry | (701579) |  |  |  |  |  |  |
| Share-based payments |  |  |  | 2892 |  |  | 2892 |
| Obligation to distribute investments |  |  |  |  |  | 12954 | 12954 |
| Loss for the year |  |  |  |  |  | (38350) | (38350) |
| Other comprehensive loss | - | - | - | - | 1802 | - | 1802 |
| **Balance as at December 31, 2021** | **700200059** | $**318499** | $**25063** | $**22219** | $**410** | $**(142266)** | $**223925** |
| **Balance as at December 31, 2021** | **700200059** | $**318499** | $**25063** | $**22219** | $**410** | $**(142266)** | $**223925** |
| Proceeds from private placement (Note 14(b)) | 17749868 | 5325 |  |  |  |  | 5325 |
| Private placements share issuance cost |  | (271) |  |  |  |  | (271) |
| Flow-through share premium liability |  | (1351) |  |  |  |  | (1351) |
| Settlement of RSUs (Note 10(e)) | 516664 | 120 |  | (120) |  |  |  |
| Shares issued on acquisition of Duparquet Project (Note 4) | 79169460 | 17391 |  |  |  |  | 17391 |
| Shares issued in connection with mineral property tenure (Note 7) | 4708127 | 1250 |  |  |  |  | 1250 |
| Share reduction due to expiry | (118029) |  |  |  |  |  |  |
| Share-based payments |  |  |  | 2427 |  |  | 2427 |
| Loss for the year |  |  |  |  |  | (16279) | (16279) |
| Other comprehensive loss | - | - | - | - | (4747) | - | (4747) |
| **Balance as at December 31, 2022** | **802226149** | $**340963** | $**25063** | $**24526** | $**(4337)** | $**(158545)** | $**227670** |

---

*The accompanying notes are an integral part of these consolidated annual financial statements*

**1. NATURE OF OPERATIONS**

First Mining Gold Corp. (the "Company" or "First Mining") is a public company which is listed on the Toronto Stock Exchange (the "TSX") under the symbol "FF", on the OTCQX under the symbol "FFMGF", and on the Frankfurt Stock Exchange under the symbol "FMG". The Company's head office and principal address is Suite 2070 – 1188 West Georgia Street, Vancouver, British Columbia, Canada, V6E 4A2.

First Mining was incorporated on April 4, 2005 and changed its name to First Mining Gold Corp. in January 2018.

First Mining is advancing a portfolio of gold projects in Canada, with the most advanced project being the Springpole Gold Project in northwestern Ontario. The Company acquired a 100% interest in the Duparquet Gold Project in September 2022 and is developing plans to advance the project along with its nearby Duquense and Pitt Projects in Québec. The Company holds a 15% equity position in Treasury Metals Inc., which is advancing the Goliath Gold Complex toward construction, and a 19% equity position in Big Ridge Gold Corp. which is advancing the Hope Brook Project as a joint venture partner. First Mining's portfolio of gold projects in eastern Canada also includes the Cameron project. In addition, the Company holds a 30% interest in PC Gold Inc., the legal entity which holds the Pickle Crow gold project (being advanced by Auteco Minerals Ltd), and a 49% direct project interest in the Hope Brook Project.

The Company continues to evaluate the potential impacts arising from COVID-19 on all aspects of its business. For the year ended December 31, 2022, there were no significant financial impacts on the Company.

**2. BASIS OF PRESENTATION** 

These consolidated annual financial statements have been prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board ("IFRS").

These consolidated annual financial statements have been prepared on a historical cost basis, except for financial instruments classified as fair value through profit and loss or fair value through other comprehensive income (loss), which are stated at their fair value. The consolidated annual financial statements are presented in thousands of Canadian dollars, unless otherwise noted, and tabular amounts are expressed in thousands of Canadian dollars. These consolidated annual financial statements include the accounts of the Company and its subsidiaries. The functional currency of the Company and its Canadian subsidiaries is the Canadian dollar while the functional currency of the Company's non-Canadian subsidiary is the US dollar.

The accounts of subsidiaries are prepared for the same reporting period as the parent company, using consistent accounting policies. Inter-company transactions, balances and unrealized gains or losses on transactions are eliminated. The following table highlights the Company's material subsidiaries with their projects:

---

| | | | |
|:---|:---|:---|:---|
| **Name of the subsidiary** | **Ownership** <br>**Percentage** | **Project** | **Location** |
| Gold Canyon Resources Inc.  | 100% | Springpole Gold Project ("Springpole")<br>Birch-Uchi Projects ("Birch-uchi") | Northwestern Ontario, Canada |
| Cameron Gold Operations Ltd.  | 100% | Cameron Gold Project ("Cameron") | Northwestern Ontario, Canada |
| Duparquet Gold Mines Inc.  | 100% | Duquesne Gold Project ("Duquesne")<br>Pitt Gold Project ("Pitt")<br>Duparquet Gold Project ("Duparquet") <br>Central Duparquet ("Duparquet") | Québec, Canada |

---

These consolidated financial statements were approved by the Board of Directors on March 28, 2023.

**3. ACCOUNTING POLICIES**

These consolidated annual financial statements have been prepared using the following accounting policies:

**a) Financial Instruments**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**(i) Classification**

The Company classifies its financial instruments in the following categories: at fair value through profit and loss ("FVTPL"), at fair value through other comprehensive income (loss) ("FVTOCI") or at amortized cost. The Company determines the classification of financial assets at initial recognition. The classification of debt instruments is driven by the Company's business model for managing the financial assets and their contractual cash flow characteristics. Equity instruments that are held for trading are classified as FVTPL. For other equity instruments, at the time of acquisition the Company can make an irrevocable election (on an instrument-by-instrument basis) to designate them as at FVTOCI. Financial liabilities are measured at amortized cost, unless they are required to be measured at FVTPL (such as instruments held for trading or derivatives) or the Company has opted to measure them at FVTPL.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**(ii) Measurement**

<u>Financial assets at FVTOCI</u>

Investments in equity instruments designated at FVTOCI are initially recognized at fair value plus transaction costs. Subsequently they are measured at fair value, with gains and losses recognized in other comprehensive income (loss).

<u>Financial assets and liabilities at amortized cost</u>

Financial assets and liabilities at amortized cost are initially recognized at fair value plus or minus transaction costs, respectively, and subsequently carried at amortized cost less any impairment.

<u>Financial assets and liabilities at FVTPL</u>

Financial assets and liabilities carried at FVTPL are initially recorded at fair value and transaction costs are expensed in the consolidated statements of net (loss) income. Realized and unrealized gains and losses arising from changes in the fair value of the financial assets and liabilities held at FVTPL are included in the consolidated statements of net (loss) income in the period in which they arise. Where management elected to recognize a financial liability at FVTPL, any changes associated with the Company's own credit risk will be recognized in other comprehensive income (loss).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**(iii) Impairment of financial assets at amortized cost**

The Company recognizes a loss allowance for expected credit losses on financial assets that are measured at amortized cost.

At each reporting date, the Company measures the loss allowance for a financial asset at an amount equal to the lifetime expected credit losses if the credit risk on the financial asset has increased significantly since initial recognition. If at the reporting date, the credit risk on the financial asset has not increased significantly since initial recognition, the Company measures the loss allowance for the financial asset at an amount equal to the twelve month expected credit losses. The Company recognizes in the consolidated statements of net (loss) income, as an impairment gain or loss, the amount of expected credit losses (or reversal) that is required to adjust the loss allowance at the reporting date to the amount that is required to be recognized.

**3. ACCOUNTING POLICIES (continued)**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**(iv) Derecognition**

<u>Financial assets</u>

The Company derecognizes financial assets only when the contractual rights to cash flows from the financial assets expire, or when it transfers the financial assets and substantially all of the associated risks and rewards of ownership to another entity. Gains and losses on derecognition are generally recognized in the consolidated statements of net (loss) income. However, gains and losses on derecognition of financial assets classified as FVTOCI remain within accumulated other comprehensive income (loss).

<u>Financial liabilities</u>

The Company derecognizes financial liabilities only when its obligations under the financial liabilities are discharged, cancelled or expired. Generally, the difference between the carrying amount of the financial liability derecognized and the consideration paid and payable, including any non-cash assets transferred or liabilities assumed, is recognized in the consolidated statements of net (loss) income.

**b) Cash and Cash Equivalents**

Cash and cash equivalents include cash and short-term deposits that are readily convertible to known amounts of cash and which are subject to an insignificant risk of changes in value. The carrying amounts of cash and cash equivalents approximate fair value due to the short-term maturities of these instruments.

**c) Mineral Properties**

Once the legal right to explore a property has been acquired, costs directly related to exploration and evaluation expenditures are recognized and capitalized, in addition to the acquisition costs. These direct expenditures include such costs as mineral concession taxes, option payments, wages and salaries, surveying, geological consulting and laboratory costs, field supplies, travel and administration. Costs not directly attributable to exploration and evaluation activities, including general administrative overhead costs, are expensed in the period in which they are incurred.

The Company may occasionally enter into option or royalty arrangements, whereby the Company will transfer part of its mineral properties, as consideration, for an agreement by the transferee to meet certain exploration and evaluation expenditures which would have otherwise been undertaken by the Company. Any cash consideration received from the agreement is credited against the costs previously capitalized to the mineral interest given up by the Company, with any excess cash accounted for as a gain on disposal.

The Company assesses exploration and evaluation assets for impairment when facts and circumstances suggest that the carrying amount of an asset may exceed its recoverable amount. The recoverable amount is the higher of the asset's fair value less costs to sell and value in use.

Once the technical feasibility and commercial viability of extracting a mineral resource has been determined, the property is considered to be a mine under development and is classified as 'mines under construction'. Exploration and evaluation assets are tested for impairment before the assets are transferred to mineral properties and mine development costs.

**3. ACCOUNTING POLICIES (continued)**

**d) Impairment of Non-Financial Assets**

Mineral properties are subject to impairment tests whenever events or changes in circumstances indicate that their carrying amount may not be recoverable. Where the carrying value of an asset exceeds its recoverable amount, which is the higher of value in use and fair value less costs to sell, the asset is written down accordingly. Any impairment loss is charged to profit or loss.

For the purposes of assessing impairment, assets are grouped at the lowest levels for which there are largely independent cash flows (cash-generating units). As a result, some assets may be tested individually for impairment and some are tested at a cash-generating unit level.

Impairment reviews for the Company's exploration and evaluation stage mineral properties are carried out on a property by property basis, with each property representing a single cash generating unit. An impairment review for an exploration and evaluation asset is undertaken when indicators of impairment arise, but typically when one of the following circumstances apply:

● The right to explore the area has expired or will expire in the near future with no expectation of renewal;

● Substantive expenditure on further exploration for and evaluation of mineral resources in the area is neither planned nor budgeted;

● No commercially viable deposits have been discovered, and the decision had been made to discontinue exploration in the area; and

● Sufficient work has been performed to indicate that the carrying amount of the expenditure carried as an asset will not be fully recovered.

**e) Property and Equipment**

Property and equipment are recorded at cost less accumulated depreciation and accumulated impairment losses. The initial cost of an asset comprises its purchase price or construction cost, any costs directly attributable to bringing the asset into operation and, where applicable, the initial estimation of any asset retirement obligation. The purchase price or construction cost is the aggregate amount paid and the fair value of any other consideration given to acquire the asset.

Depreciation is recognized in profit or loss on a straight-line basis over the following estimated useful lives:

---

| | |
|:---|:---|
| Buildings | 10 years |
| Machinery and equipment | 5 years |
| Furniture and fixtures | 5 years |
| Vehicles | 5 years |
| Computer equipment | 3 years |
| Computer software | 1 year |

---

Depreciation methods, useful lives and residual values are reviewed at each financial year-end and adjusted if appropriate.

**f) Environmental Reclamation Provision**

The Company is subject to various government laws and regulations relating to environmental disturbances caused by exploration and evaluation activities. The present value of the estimated costs of legal and constructive obligations required to restore the exploration sites is recognized in the year in which the obligation is incurred.

**3. ACCOUNTING POLICIES (continued)**

**f) Environmental Reclamation Provision (continued)**

The nature of the reclamation activities includes restoration and revegetation of the affected exploration sites.

When a liability is recognized, the present value of the estimated costs (discounted using a risk-free rate) is capitalized by increasing the carrying amount of the related exploration property. Over time, the discounted liability is increased for the changes in present value based on current market discount rates and liability specific risks.

Additional environmental disturbances or changes in reclamation costs will be recognized as additions to the corresponding assets and reclamation provision in the year in which they occur.

**g) Income Taxes**

Income tax expense comprises current and deferred tax. Current tax and deferred tax are recognized in net income except to the extent that it relates to a business combination or items recognized directly in equity or in other comprehensive loss.

Current income taxes are recognized for the estimated income taxes payable or receivable on taxable income or loss for the current year and any adjustment to income taxes payable in respect of previous years. Current income taxes are determined using tax rates and tax laws that have been enacted or substantively enacted by the year-end date.

Deferred tax assets and liabilities are recognized where the carrying amount of an asset or liability differs from its tax base, except for taxable temporary differences arising on the initial recognition of goodwill and temporary differences arising on the initial recognition of an asset or liability in a transaction which is not a business combination and at the time of the transaction affects neither accounting nor taxable profit or loss.

Recognition of deferred tax assets for unused tax losses, tax credits and deductible temporary differences is restricted to those instances where it is probable that future taxable profit will be available against which the deferred tax asset can be utilized. The Company recognizes a previously unrecognized deferred tax asset to the extent that it has become probable that future taxable profit will allow the deferred tax asset to be recovered.

**h) Share Capital**

Equity instruments are contracts that give a residual interest in the net assets of the Company. Financial instruments issued by the Company are classified as equity only to the extent that they do not meet the definition of a financial liability or financial asset. The Company's common shares are classified as equity instruments.

Incremental costs directly attributable to the issue of new shares or options are shown in equity as a deduction, net of tax, from the proceeds.

Consideration received from financings involving units consisting of common shares and warrants is allocated to the share capital and the warrant reserve accounts using the relative fair value method. As prescribed by this method, the consideration is allocated to the value of share capital and warrant reserve on a pro rata basis.

**3. ACCOUNTING POLICIES (continued)**

**i) Loss per Share**

Basic loss per share is calculated by dividing the net loss for the year by the weighted average number of shares outstanding during the year. Diluted loss per share is calculated using the treasury stock method. Under the treasury stock method, the weighted average number of shares outstanding used in the calculation of diluted income or loss per share assumes that the deemed proceeds received from the exercise of stock options, share purchase warrants and their equivalents would be used to repurchase common shares of the Company at the average market price during the year, if they are determined to have a dilutive effect. In periods when the Company has generated a net loss, stock options and share purchase warrants are not included in the computation of diluted loss per share as they are anti-dilutive.

**j) Share-based Payments**

Stock options

Where equity-settled share options are granted to employees, the fair value of the options at the date of grant, measured using the Black-Scholes option pricing model, is charged to the statement of comprehensive loss or capitalized to mineral properties over the vesting period using the graded vesting method. Performance vesting conditions are taken into account by adjusting the number of equity instruments expected to vest at each reporting date so that, ultimately, the cumulative amount recognized over the vesting period is based on the number of options that eventually vest. Charges for options that are forfeited before vesting are reversed from share-based payment reserve.

Where equity-settled share options are granted to non-employees, they are measured at the fair value of the goods or services received. However, if the value of goods or services received in exchange for the options cannot be reliably estimated, the options are measured using the Black-Scholes option pricing model.

Performance share units

The fair value of performance share units ("PSUs") is measured using a Monte Carlo simulation model, based upon several assumptions, including share price volatility, the Company's share performance and the Company's share performance in relation to its peers (See Note 14(g)). The cost is recorded is recorded over the vesting period within equity until settled.

Deferred share units and restricted share units

Deferred share units ("DSUs") and restricted share units ("RSUs") are measured based on the fair value at the grant date. The cost is recorded over the vesting period within equity until settled. Equity-settled awards are not remeasured subsequent to the initial grant date.

All equity-settled share-based payments are reflected in the share-based payment reserve, until exercised. Upon exercise, shares are issued from treasury and the amount reflected in share-based payment reserve is credited to share capital, together with any consideration received.

**3. ACCOUNTING POLICIES (continued)**

**k) Leases**

The Company recognizes a right-of-use asset and a corresponding lease liability with respect to all lease arrangements in which it is the lessee, except for short-term leases (defined as leases with a lease term of 12 months or less) and leases of low value assets. For new leases, a right-of-use asset is initially measured at the amount of the liability plus any initial direct costs. After lease commencement, the lessee shall measure the right-of-use asset at cost less accumulated depreciation and accumulated impairment.

**l) Segment Reporting**

Operating segments are reported in a manner consistent with the internal reporting provided to the chief operating decision-maker. The chief operating decision-maker is responsible for allocating resources and assessing performance of the operating segment.

**m) Investments in associates**

An associate is an entity over which the Company has significant influence, and which is neither a subsidiary nor a joint arrangement.

The Company has significant influence over an entity when it has the power to participate in the financial and operating policy decisions of the associate but does not have control or joint control.

Under the equity method, the Company's investment in the common shares of the associate is initially recognized at cost and subsequently increased or decreased to recognize the Company's share of net income and losses of the associate, after any adjustments necessary to give effect to uniform accounting policies, any other movement in the associate's reserves, and for impairment losses after the initial recognition date. The Company's share of income and losses of the associate is recognized in net income during the period.

Dividends and repayment of capital received from an associate are accounted for as a reduction in the carrying amount of the Company's investment.

At the end of each reporting period, the Company assesses whether there is any objective evidence that an investment in an associate is impaired. Objective evidence includes observable data indicating there is a measurable decrease in the estimated future cash flows of the investee's operations. A significant or prolonged decline in the fair value of an equity investment below its cost is also objective evidence of impairment. When there is objective evidence that an investment is impaired, the carrying amount of such investment is compared to its recoverable amount, being the higher of its fair value less costs of disposal and value-in-use. If the recoverable amount of an investment is less than its carrying amount, the carrying amount is reduced to its recoverable amount and an impairment loss is recognized in the period in which the relevant circumstances are identified. When an impairment loss reverses in a subsequent period, the carrying amount of the investment is increased to the revised estimate of recoverable amount to the extent that the increased carrying amount does not exceed the carrying amount that would have been determined had an impairment loss not been previously recognized. A reversal of an impairment loss is recognized in net income in the period in which the reversal occurs.

**3. ACCOUNTING POLICIES (continued)**

**n) Accounting Policy Judgements and Estimation Uncertainty**

The Company's management makes judgments in its process of applying the Company's accounting policies in the preparation of its consolidated financial statements. In addition, the preparation of the financial data requires the Company's management to make estimates of the impacts of uncertain future events on the carrying amounts of the Company's assets and liabilities at the end of the reporting period, and the reported amounts of revenues and expenses during the reporting period. Actual results may differ from those estimates as the estimation process is inherently uncertain. Estimates are reviewed on an ongoing basis based on historical experience and other factors that are considered relevant under the circumstances. Revisions to estimates and the resulting impacts on the carrying amounts of the Company's assets and liabilities are accounted for prospectively.

The following discusses accounting policy judgments and the sources of estimation uncertainty:

**(i) Accounting Policy Judgements**

**Mineral Property Impairment Indicators**

In accordance with the Company's accounting policy for mineral properties, exploration and evaluation expenditures on mineral properties are capitalized. There is no certainty that the expenditures made by the Company in the exploration of its property interests will result in discoveries of commercial quantities of minerals. The Company applies judgment to determine whether indicators of impairment exist for these capitalized costs.

Management uses several criteria in making this assessment, including the period for which the Company has the right to explore, expected renewals of exploration rights, whether substantive expenditures on further exploration and evaluation of mineral properties are budgeted, and evaluation of the results of exploration and evaluation activities up to the reporting date.

**Impairment assessments for Investments in Associates**

With respect to its investments in associates, the Company is required to make estimates and judgments about future events and circumstances and whether the carrying amount of the asset exceeds its recoverable amount. Recoverability depends on various factors, including the identification of economic recoverability of reserves at each associate's exploration properties, the ability of each associate to obtain the necessary financing to complete the development, and future profitable production or proceeds from the disposition of the underlying shares of the associate companies. The publicly quoted share price of an associate, where applicable, is also a source of objective evidence about the recoverable amount of the equity investment.

**(ii) Estimation Uncertainty**

**Fair Value of Silver Stream Derivative Liability**

The determination of the fair value of the Silver Stream is an area of significant estimation uncertainty. The fair value is calculated by utilising a Monte Carlo simulation valuation model. A Monte Carlo valuation model relies on random sampling and is often used when modeling cash flows with many inputs and where there is significant uncertainty in the future value of inputs and where the movement of the inputs can be independent of each other. The key inputs used in the Silver Stream fair value calculation are further disclosed in Note 11. Changes in the inputs to the valuation model may result in material changes in the fair value of the silver stream derivative liability and the amount of fair value gains or losses recognized in the statement of net loss and comprehensive loss in future periods.

**3. ACCOUNTING POLICIES (continued)**

**Fair Value of the Option – PC Gold**

The Company has made assumptions when estimating the fair value of the PC Gold option liability which arises under the terms of the Earn-In Agreement described in Note 7(d). As there is no observable market data which can be used to determine the fair value of the Option – PC Gold liability, management uses property specific and market-based information to determine whether a significant change in the fair value of the option liability has occurred. The specific assumptions made are disclosed in Note 7(d). Changes in these assumptions can significantly affect the fair value estimate.

**o) Accounting Standards Issued but Not Yet Applied**

There are no IFRS or International Financial Reporting Interpretations Committee interpretations that are not yet effective that would be expected to have a material impact on the Company's consolidated financial statements.

**4. ACQUISITION OF DUPARQUET**

On September 15, 2022, the Company completed the acquisition of all the outstanding common shares of Beattie Gold Mines Ltd. ("Beattie"), a private company that owns the mineral rights to mining claims that make up the former Beattie mining concession that form a large part of the Duparquet Gold Project located Québec, Canada (the "Beattie Transaction"), that are not already owned by the Company or Clifton Star Resources Inc. ("Clifton Star"). The total consideration of the Beattie Transaction was $4.43641 cash per Beattie Gold common share and 35 common shares of First Mining ("First Mining Shares") per Beattie Gold common share for total cash consideration of $6,227,176 and total share consideration of 51,532,516 First Mining Shares.

Concurrent with completing the Beattie Transaction, the Company completed the acquisitions of 2699681 Canada Ltd. ("269 Canada") and 2588111 Manitoba Ltd. ("258 Manitoba"), (together the "Concurrent Transactions") through Clifton Star. The total consideration of the Concurrent Transactions was $2,500,000 in cash and the issuance of 20,000,000 First Mining Shares.

As a result of acquiring Beattie, 269 Canada and 258 Manitoba, the Company, through its wholly owned subsidiary Duparquet Gold Mines Inc. ("Duparquet Gold Mines"), which was previously called Clifton Star, now owns 100% of the Duparquet Gold Project, in addition to the Pitt Gold Project in Quebec (which the Company acquired from Brionor Resources Inc. on April 28, 2016 and which it holds through Duparquet Gold Mines) and the Duquesne Gold Project in Quebec (which the Company has owned since it acquired all of the issued and outstanding shares of Clifton Star on April 8, 2016 and which it holds through Duparquet Gold Mines).

Management has concluded that the acquisition of Duparquet, consisting of Beattie, 269 Canada and 258 Manitoba, is an asset acquisition when applying the guidance within IFRS 3 Business Combinations. The purchase price has been allocated to the assets acquired and liabilities assumed, based on their estimated fair values at the acquisition date. Upon closing, the fair value of identifiable assets acquired from Beattie, 269 Canada and 258 Manitoba were as follows:

---

| | |
|:---|:---|
| Mineral Properties | $24166  |
| Accounts Payable and Accruals | (71) |
| **Net assets acquired** | $**24095**  |

---

**4. ACQUISITION OF DUPARQUET (continued)**

The consideration paid by the Company was comprised as follows:

---

| | |
|:---|:---|
| Fair value of 71,532,516 common shares issued for Beattie, 269 Canada and 258 Manitoba | $15368  |
| Cash paid | 8727 |
| **Total consideration paid** | $**24095**  |

---

**5. INVESTMENTS**

The movements in investments during the years ended December 31, 2022 and 2021 are summarized as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **Marketable Securities (FVTPL)** | **Marketable Securities**<br>**(FVTOCI)** | **Warrants**<br>**(FVTPL)** | **Total**<br> **Investments** |
| **Balance as at December 31, 2021** | $**8400** | $**4986** | $**-** | $**13386** |
| Additions |  | 110 |  | 110 |
| Disposals | (6753) | (3685) | - | (10438) |
| Loss recorded in other comprehensive loss |  | (1227) |  | (1227) |
| Loss recorded in net loss | (1647) | - | - | (1647) |
| **Balance as at December 31, 2022** | $**-** | $**184** | $**-** | $**184** |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **Marketable Securities (FVTPL)** | **Marketable Securities**<br>**(FVTOCI)** | **Warrants**<br>**(FVTPL)** | **Total**<br> **Investments** |
| **Balance as at December 31, 2020** | $9267 | $3386 | $5772 | $18425 |
| Additions | 13691 | 216 |  | 13907 |
| Disposals | (13971) | (710) |  | (14681) |
| Gain recorded in other comprehensive income |  | 2094 |  | 2094 |
| Loss recorded in net loss | (587) |  | (3698) | (4285) |
| Distribution to shareholders | - | - | (2074) | (2074) |
| **Balance as at December 31, 2021** | $8400 | $4986 | $- | $13386 |

---

The Company holds securities of publicly traded companies as strategic interests. The investments where the Company does not have significant influence are classified as marketable securities. The Auteco and First Majestic common shares are classified as FVTPL. Other marketable securities are designated as FVTOCI.

During the three months ended December 31, 2022, the Company:

· Sold common shares of marketable securities for net proceeds of $4,235,000 resulting in a net $2,815,000 realized loss on sale based on the difference between the original cost of the securities at the time of initial recognition and sale price.

**5. INVESTMENTS (continued)**

During the year ended December 31, 2022, the Company:

· Sold common shares of marketable securities for net proceeds of $10,407,000 resulting in a net $2,549,000 realized loss on sale based on the difference between the original cost of the securities at the time of initial recognition and sale price;

· Received common shares (initial recognition - $110,000), in connection with the Earn-in Agreement associated with the Turquoise Canyon Project in Nevada, USA.

**6. PREPAID EXPENSES, ACCOUNTS AND OTHER RECEIVABLES**

---

| | | |
|:---|:---|:---|
|  | **December 31,** <br>**2022** | **December 31,** <br>**2021** |
| GST and HST receivables | $467 | $564 |
| Other receivables | 32 | 40 |
| Prepaid expenses | 619 | 405 |
|  | $**1118** | $**1009** |

---

**7. MINERAL PROPERTIES**

As at December 31, 2022 and 2021, the Company had the following mineral properties:

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Springpole** | **Birch-Uchi**<br>**(Note 7(a))** | **Cameron** | **Duparquet**<br>**(Note 7(b))** | **Duquesne/**<br>**Pitt** | **Hope Brook**<br>**(Note 7(c))** | **Pickle Crow**<br>**(Note 7(d))** | **Others <sup>(1)</sup>** | **Total** |
| **Balance December 31, 2021** | $**104065** | $**1320** | $**32329** | $**3098** | $**7244** | $**18027** | $**-** | $**3934** | $**170017** |
| Acquisition  | 1566 | 674 |  | 30489 |  |  |  |  | **32729** |
| Concessions, taxes and royalties | 255 |  | 17 | 2 |  |  |  |  | **274** |
| Salaries and share-based payments | 3406 | 652 | 94 | 276 | 5 |  |  |  | **4433** |
| Drilling, exploration, and technical consulting | 7400 | 788 | 83 | 142 |  |  |  |  | **8413** |
| Assaying, field supplies, and environmental | 7356 | 261 | 47 | 119 |  |  |  |  | **7783** |
| Travel and other expenses  | 1781 | 176 | 11 | 11 | - | - | - | - | **1979** |
| **Total Expenditures** | $**21764** | $**2551** | $**252** | $**31039** | $**5** | $**-** | $**-** | $**-** | $**55611** |
| Environmental remediation | - | - | - | 1500 | - | - | - | - | 1500 |
| Option payments received |  |  |  | - |  | (2175) |  | (110) | (2285) |
| Currency translation adjustments | - | - | - | - | - | - | - | 13 | 13 |
| Disposal of properties | - | - | - | - | - | - | - | (3709) | (3709) |
| **Balance December 31, 2022** | $**125829** | $**3871** | $**32581** | $**35637** | $**7249** | $**15852** | $**-** | $**128** | $**221147** |

---

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **Springpole** | **Birch-Uchi** | **Cameron** | **Duparquet**<br>**(Note 7(b))** | **Duquesne/**<br>**Pitt** | **Hope Brook** | **Pickle Crow** | **Others <sup>(1)</sup>** | **Total** |
| **Balance December 31, 2020** | $**87907** | $**-** | $**31875** | $**2670** | $**7229** | $**20612** | $**24986** | $**4150** | $**179429** |
| Acquisition  | 1222 | 1047 | 21 |  |  |  |  |  | **2290** |
| Concessions, taxes and royalties | 684 |  | 32 |  | 3 | 20 |  |  | **739** |
| Salaries and share-based payments | 3311 | 3 | 185 | 114 | 6 | 44 | 22 |  | **3685** |
| Drilling, exploration, and technical consulting | 4235 | 269 | 102 | 270 | 6 | 16 | 3251 | 20 | **8169** |
| Assaying, field supplies, and environmental | 5194 | 1 | 80 | 38 |  | 3 |  | (20) | **5296** |
| Travel and other expenses | 1512 | - | 34 | 6 | - | 17 | - | - | **1569** |
| **Total Expenditures** | $**16158** | $**1320** | $**454** | $**428** | $**15** | $**100** | $**3273** | $**-** | $**21748** |
| Disposal, impairment, reclassification or option payments | - | - | - | - | - | (2685) | (28259) | (216) | **(31160)** |
| **Balance December 31, 2021** | $**104065** | $**1320** | $**32329** | $**3098** | $**7244** | $**18027** | $**-** | $**3934** | $**170017** |

---

**7. MINERAL PROPERTIES (continued)**

<sup>(1)</sup> Other mineral properties as at December 31, 2022 and December 31, 2021 include: A 1.5% NSR Royalty on the Goldlund Property under the terms of the Share Purchase Agreement for Tamaka Gold Corporation, which was sold during the year (Note 8(a)); and Turquoise Canyon property in Nevada (under option with Momentum Minerals Ltd. which was subsequently acquired by IM Exploration Inc. on July 6, 2021 and IM Exploration Inc. was renamed to Westward Gold Inc. on October 7, 2021).

The Company has various underlying agreements and commitments with respect to its mineral properties, which define annual or future payments in connection with royalty buy-backs or maintenance of property interests, the most significant of which are discussed below. During the year ended December 31, 2022, the Company issued an aggregate of 1,843,832 common shares pursuant to the terms of certain Birch-Uchi option and earn-in agreements.

**a) Birch-Uchi Properties**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**i) Swain Post property option**

On February 26, 2021, the Company entered into a three year earn-in agreement with Exiro Minerals Corp. ("Exiro") pursuant to which First Mining may earn a 100% interest in Exiro's Swain Post property ("Swain Post Property") in northwestern Ontario by making total cash and share payments of $335,000 to Exiro during the term of the option, and by completing all assessment work requirements on the Swain Post Property during the three-year option term. As at December 31, 2022, the Company has issued 388,267 common shares and made payments of $50,000 in cash under the terms of the earn-in agreement.

**ii) Swain Lake property option**

On April 28, 2021, the Company entered into an earn-in agreement with Whitefish Exploration Inc. ("Whitefish"), which gives First Mining the option to earn up to a 100% interest in Whitefish's Swain Lake project ("Swain Lake") in northwestern Ontario in two stages over a period of five years. First Mining may earn a 70% interest in Swain Lake by making cash payments totaling $200,000 and share payments totaling $425,000, and by incurring at least $500,000 worth of expenditures on the Swain Lake Property during the first three years of the earn-in term. Upon completing the first stage of the earn-in, First Mining will hold a 70% interest in the Swain Lake Property and will have an additional period of two years within which to acquire the remaining 30% interest in the Swain Lake Property by paying $1,000,000 in cash and issuing $1,000,000 worth of First Mining common shares to Whitefish. As at December 31, 2022, the Company has issued 702,875 common shares and made payments of $100,000 in cash under the terms of the earn-in agreement.

**iii) Vixen properties acquisition**

On September 15, 2021, the Company entered into a three-year option agreement with ALX Resources Corp. ("ALX") pursuant to which First Mining may earn up to a 100% interest in ALX's Vixen North, Vixen South and Vixen West properties (the "Vixen Properties") in northwestern Ontario in two stages over a period of five years. First Mining may earn a 70% interest in the Vixen Properties by making cash payments totalling $550,000 and share payments totalling $400,000 to ALX during the initial three-year option term, and by incurring at least $500,000 worth of expenditures on the property during the initial three-year option term. Upon completing the first stage of the earn-in, First Mining will hold a 70% interest in the Vixen Properties and will have an additional period of two years to acquire the remaining 30% interest in the Vixen Properties by paying $500,000 in cash and issuing $500,000 worth of First Mining shares to ALX. During the year ended December 31, 2022, the Company issued 444,887 common shares and made payments of $100,000 in cash under the terms of the earn-in agreement.

**7. MINERAL PROPERTIES (continued)**

**iv) Birch Lake properties acquisition**

On October 11, 2021, the Company entered into an earn-in agreement with Pelangio Exploration Inc. ("Pelangio") pursuant to which First Mining may earn up to an 80% interest in Pelangio's Birch Lake properties (the "Birch Lake Properties") in two stages over a period of six years. First Mining may earn a 51% interest in the Birch Lake Properties by making cash payments totaling $350,000 and issuing in aggregate 1,300,000 First Mining common shares and by incurring at least $1,750,000 worth of expenditures on the Birch Lake Properties during the first four years of the earn-in term. Upon completing the first stage of the earn-in, First Mining will hold a 51% interest in the Birch Lake Properties and will have an additional period of 2 years to acquire a further 29% interest in the Birch Lake Properties by paying $400,000 to Pelangio in cash or issuing First Mining common shares, at First Mining's sole discretion, and by incurring an additional $1,750,000 worth of expenditures on the Birch Lake Properties. During the year ended December 31, 2022, the Company issued 250,000 common shares and made payments of $50,000 in cash under the terms of the earn-in agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**v) Stargazer properties acquisition**

On October 29, 2021, the Company entered into a three year earn-in agreement with a private individual pursuant

to which First Mining may earn a 100% interest in the Stargazer concession and other properties ("Stargazer Properties") in northwestern Ontario by making cash and share payments of $250,000 to the private individual during the term of the option, and by incurring at least $350,000 worth of expenditures on the Stargazer Properties during the three-year option term. During the year ended December 31, 2022, the Company issued 57,803 common shares and made payments of $12,000 in cash under the terms of the earn-in agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**b) Duparquet Project**

During the year ended December 31, 2022, the Company issued 71,532,516 common shares in connection with the Duparquet property acquisition. The interests in Duparquet were previously recorded as mineral property investments. Due to the acquisition the interest was transfered into mineral properties. The Duparquet acquisition costs recorded in Mineral Properties are broken down as follows:

---

| | |
|:---|:---|
|  | **December 31,**<br>**2022** |
| Mineral Properties – Central Duparquet | $67 |
| Investment in Beattie Gold Mines – Initial Recognition on Feb 7, 2022 | 5544 |
| Equity Loss | (1) |
| Mineral Property Investments in 269 Canada and 258 Manitoba | 4281 |
| Fair value loss – FVTOCI | (3537) |
| Mineral Properties – Initial Recognition on September 15, 2022 | 24135 |
| **Total acquisition costs recorded in Mineral Properties**  | $**30489** |

---

The Company recorded $1.5 million (December 31, 2021 - $Nil) as a provision for environmental remediation activities related to work to be incurred by the Company's wholly-owned subsidiary subsequent to December 31, 2022.

**7. MINERAL PROPERTIES (continued)**

**c) Hope Brook Project**

On June 8, 2021, the Company announced it had closed a definitive earn-in agreement with Big Ridge Gold Corp. "Big Ridge" (the "Big Ridge Transaction") whereby Big Ridge could earn up to an 80% interest in First Mining's Hope Brook Gold Project located in Newfoundland, Canada. Pursuant to the definitive earn-in agreement, Big Ridge has the right to earn an 80% interest in the Hope Brook Project through a two-stage earn-in over five years by incurring a total of $20,000,000 in qualifying expenditures, issuing up to 36.5 million shares of Big Ridge to First Mining and making a future cash payment to First Mining. Upon completion of the earning in, First Mining will retain a 20% interest in the Hope Brook Project and a 1.5% net smelter returns royalty on the Hope Brook Project, of which 0.5% can be bought back by Big Ridge for $2,000,000. In accordance with the agreement, upon closing First Mining nominated one member to the Board of Directors of Big Ridge and received $500,000 and 11,500,000 shares of Big Ridge which have been credited against the Hope Brook project mineral property balance.

On September 13, 2022, Big Ridge completed Stage 1 of the earn-in requirements necessary to satisfy the earn-in threshold set out in the earn-in agreement. The Company received 15.0 million common shares of Big Ridge and the Company's interest in the project decreased to 49%. See Note 10 below for further details of the equity accounted investment in Big Ridge.

**d) Pickle Crow Project**

On March 12, 2020, the Company and Auteco Minerals Ltd. ("Auteco") executed a definitive earn-in agreement (the "Auteco Earn-In Agreement") whereby Auteco may earn up to an 80% interest in PC Gold Inc., a then wholly-owned subsidiary of First Mining which owns the Pickle Crow Project. Pursuant to the Auteco Earn-In Agreement, the earn-in is comprised of two stages. On June 9, 2021, the Company announced completion of the stage 1 earn-in and accordingly Auteco obtained a 51% ownership of PC Gold Inc. First Mining received the scheduled 100,000,000 Auteco shares and the parties executed the joint venture shareholders agreement.

Following the completion of the Stage 1 earn-in by Auteco, First Mining's percentage ownership of its former subsidiary, PC Gold Inc., was reduced from 100% to 49%, which led to a loss of control and the resulting deconsolidation of PC Gold Inc. from First Mining's financial statements. Following completion of the Stage 2 earn-in in Q3 2021 the Company delivered the additional 19% interest in PC Gold Inc. to Auteco from the Option – PC Gold balance which represented the fair value loss on the reduced 30% PC Gold ownership. A corresponding reduction in the equity accounted investment in PC Gold Inc. was also recorded as a result of this dilution. The $5,216,000 (December 31, 2021 - $4,347,000) liability balance as at December 31, 2022 represents the additional net dilution which would result from Auteco completing its additional 10% equity interest. Following receipt of $3,000,000 under this option First Mining's ownership would reduce to 20%.

The Auteco Earn-In Agreement requires First Mining to contribute its pro-rata share of environmental reclamation funding, which was 30% as at December 31, 2022 following completion of the Stage 2 earn-in. Accordingly, the Company has recorded a provision of $1,172,000 as at December 31, 2022 (December 31, 2021 - $990,000).

**8. INVESTMENT IN TREASURY METALS**

**a) Treasury Share Purchase Agreement Overview**

On August 7, 2020, First Mining completed a transaction with Treasury Metals Inc. ("Treasury Metals") under a share purchase agreement (the "Treasury Share Purchase Agreement"), pursuant to which Treasury Metals agreed to acquire all of the issued and outstanding shares of Tamaka Gold Corporation, a previously wholly-owned subsidiary of the Company, and 100% owner of the Goldlund Project. Under the terms of the Treasury Share Purchase Agreement, First Mining received total consideration of $91,521,000 which was comprised of (i) 43.33 million common shares (post-consolidation) of Treasury Metals ("Treasury Metals Shares") with a fair value of $78,000,000; (ii) 11.67 million common share purchase warrants (post-consolidation) of Treasury Metals ("Treasury Metals Warrants") with an exercise price of $1.50 for a three year term with a fair value of $9,812,000; (iii) a retained 1.5% Net Smelter Returns ("NSR") royalty on Goldlund (0.5% of which can be bought back by Treasury Metals for $5 million in cash) with a fair value of $3,709,000; and (iv) the right to certain contingent milestone payments totaling $5 million, payable in cash on certain key advancements at Goldlund which have not been recorded as at December 31, 2022.

During the year ended December 31, 2022, the Company sold its 1.5% NSR Royalty on Goldlund for US$7,000,000 (approx. $9.6 million) and recognized a gain on the sale of mineral properties for $5,872,000 less charges of $144,000.

**b) Equity Accounting Method for Investment in Treasury Metals**

The Company has concluded it has significant influence over Treasury Metals. The Company is accounting for its investment using the equity method. As at December 31, 2022 the fair market value of the Company's investment in common shares of Treasury Metals was $5,592,000, based on the Treasury Metals quoted market price.

As at December 31, 2022, the Company owns approximately 20.0 million Treasury Metals Shares.

---

| | | |
|:---|:---|:---|
|  | **December 31,** <br>**2022** | **December 31,** <br>**2021** |
| **Balance as at December 31, 2021** | $**15400** | $**63812** |
| Acquisition – Initial Recognition on August 7, 2020 |  |  |
| Equity loss  | (850) | (167) |
| Dilution event in Q2, 2021 |  | (5000) |
| Fair value adjustment of Investment in Treasury Metals Inc.  | (8958) | (24304) |
| Distribution to shareholders | - | (18941) |
| **Balance as at December 31, 2022** | $**5592** | $**15400** |

---

The equity accounting for Treasury Metals is based on audited results for the year December 31, 2022. The Company's equity share of Treasury's net loss for the year ending December 31, 2022 was $850,000.

**9. INVESTMENT IN PC GOLD INC.**

Following the completion of the Stage 1 earn-in into PC Gold by Auteco, First Mining determined that its then 49% investment in the common shares of PC Gold gave it significant influence over PC Gold, requiring PC Gold to be recorded in First Mining's financial statements using the equity method of accounting as an investment in an associate.

**9. INVESTMENT IN PC GOLD INC. (continued)**

The initial recognition of the investment in an associate was accounted for based on an estimated fair value using a market approach to value Pickle Crow's inferred resources on a per unit of metal basis derived from comparable gold project transactions. As at December 31, 2022, the Company owns a 30% interest in PC Gold Inc.

---

| | | |
|:---|:---|:---|
|  | **December 31,** <br>**2022** | **December 31,** <br>**2021** |
| **Balance as at December 31, 2021** | $**21570** | $**-** |
| Acquisition – Initial Recognition on June 9, 2021 |  | 36000 |
| Equity income (loss)  | 2 | (3) |
| Dilution of ownership - Stage 2 earn-in completion | - | (14427) |
| **Balance as at December 31, 2022** | $**21572** | $**21570** |

---

The subsequent equity accounting for PC Gold is based on audited results for the year-ended June 30, 2022, and on the unaudited six-month period ended December 31, 2022. The Company's estimated equity share of PC Gold's net gain for the year ended December 31, 2022 was $2,000.

**10. INVESTMENT IN BIG RIDGE GOLD CORP.**

On September 13, 2022, Big Ridge completed Stage 1 of the earn-in requirements necessary to satisfy the earn-in threshold set out in the Hope Brook earn-in agreement. Big Ridge issued a total of 15.0 million common shares to the Company with an aggregate fair value of $2,175,000, resulting in an increase in the Company's common share ownership interest in Big Ridge to 19.5% on December 31, 2022 from 10.8%. Following the completion of the initial Big Ridge transaction on June 7, 2021, the Company's common share ownership interest in Big Ridge was approximately 19.8% (Initial Recognition fair value - $2,185,000). In addition to its share ownership interest, the Company considered various qualitative factors including representation rights on Big Ridge's board of directors in arriving at the determination that significant influence exists, and therefore the Company applies the equity method of accounting.

---

| | | |
|:---|:---|:---|
|  | **December 31,** <br>**2022** | **December 31,** <br>**2021** |
| **Balance as at December 31, 2021** | $**1491** | $**-** |
| Acquisition – Initial Recognition on June 7, 2021 |  | 2185 |
| Equity loss | (144) | (106) |
| Dilution event in Q2 2021 |  | (588) |
| Completion of Stage 1 Earn-In | 2175 |  |
| Fair value adjustment of Investment in Big Ridge Gold Corp.  | (1403) | - |
| **Balance as at December 31, 2022** | $**2119** | $**1491** |

---

The subsequent equity accounting for Big Ridge is based on audited results for the year end June 30, 2022 and on the unaudited six-month period ended December 31, 2022. The Company's estimated equity share of Big Ridge's net loss for the year ended December 31, 2022 was $144,000.

**11. SILVER STREAM DERIVATIVE LIABILITY**

**a) Silver Purchase Agreement Overview and Consideration Received**

On June 10, 2020, the Company entered into a silver purchase agreement (the "Silver Purchase Agreement") with First Majestic Silver Corp. ("First Majestic"), which closed on July 2, 2020. Under the terms of the Silver Purchase Agreement, First Majestic agreed to pay First Mining total consideration of US$22.5 million (approx. $30.6 million as at the closing date) (the "Advance Payment"), in three tranches, for the right to purchase 50% of the payable silver produced from the Springpole Gold Project over the life of the project (the "Silver Stream") and also received 30 million common share purchase warrants of First Mining. Each share purchase warrant entitles First Majestic to purchase one common share of First Mining at an exercise price of $0.40 for a period of five years. The fair value of the warrants issued of $6,278,000 was recorded in Equity (Warrant reserve) on the Company's consolidated statements of financial position.

First Mining has the right to repurchase 50% of the Silver Stream for US$22.5 million (approx. $30.8 million as at December 31, 2022) at any time prior to the commencement of production at Springpole (the "Buy-Back Right").

Per the Silver Purchase Agreement, First Majestic paid US$10 million ($13.7 million) to First Mining on the July 2, 2020 closing date, with US$2.5 million ($3.3 million) paid in cash and the remaining US$7.5 million ($10.4 million) paid in 805,698 common shares of First Majestic ("Tranche 1"). Upon announcement of the Pre-Feasibility Study ("PFS") on 4, 2021, First Mining received US$7.5 million ($9.8 million) from First Majestic, with US$3.75 million($4.8 million) paid in cash and the remaining US$3.75 million ($5.0 million) paid in 287,300 common shares of First Majestic ("Tranche 2"). The final tranche ("Tranche 3") of US$5.0 million ($6.5 million) is payable by First Majestic upon First Mining receiving approval of a federal or provincial environmental assessment for the Springpole Gold Project, which is to be paid half in cash and half in shares of First Majestic.

The Silver Stream has an initial term of 40 years from July 2, 2020. The term is automatically extended by successive 10-year periods as long as the life of mine continues for the Springpole Gold Project. If, upon expiration of the term of the Silver Purchase Agreement, the Company has not sold to First Majestic an amount of silver sufficient to reduce the Advance Payment to nil, then a refund of the uncredited balance, without interest shall be due and owing by the Company to First Majestic.

The silver delivered to First Majestic may be sourced from the Springpole Gold Project, or the Company may substitute any required refined silver with refined silver from a source other than the Springpole Gold Project, with the exception of silver purchased on a commodity exchange.

**b) Silver Stream Derivative Liability Fair Value**

The Company has concluded that the Silver Stream is a standalone derivative measured at FVTPL.

The estimated fair value of the Silver Stream derivative liability is determined using a discounted cash flow model which incorporates a Monte Carlo simulation. The fair value of the Silver Stream derivative liability is a Level 3 measurement.

**11. SILVER STREAM DERIVATIVE LIABILITY (continued)**

The fair value of the Silver Stream derivative liability is calculated at each reporting date as the net of the future Advance Payment tranches receivable (an asset for the Company) and the Silver Stream obligation (a liability to the Company), with gains or losses recorded in the statement of net loss and comprehensive loss. The fair value of the Silver Stream derivative liability as at December 31, 2022 is US$20,061,000 ($27,171,000), which is comprised of the Silver Stream obligation fair value of US$23,646,000 ($32,026,000) less the Advance Payment receivable fair value of US$3,585,000 ($4,855,000). The fair value of the Silver Stream derivative liability as at December 31, 2021 was US$20,664,000 ($26,114,000), which is comprised of the Silver Stream obligation fair value of US$23,818,000 ($30,098,000) less the Advance Payment receivable fair value of US$3,154,000 ($3,984,000).

---

| | | |
|:---|:---|:---|
|  | **December 31,** <br>**2022** | **December 31,** <br>**2021** |
| **Balance as at December 31, 2021** | $**(26114)** | $**(13260)** |
| Advance payment received (Tranche 2) (US$7.5 million) |  | (9808) |
| Change in fair value during the year | (1057) | (3046) |
| **Balance as at December 31, 2022** | $**(27171)** | $**(26114)** |

---

**12. ACCOUNTS PAYABLE AND ACCRUED LIABILITIES**

---

| | | |
|:---|:---|:---|
|  | **December 31,** <br>**2022** | **December 31,** <br>**2021** |
| Accounts payable | $750 | $2437 |
| Accrued liabilities | 2097 | 2054 |
|  | $**2847** | $**4491** |

---

**13. FLOW-THROUGH SHARE PREMIUM LIABILITY**

The following is a continuity schedule of the liability portion of the Company's flow-through share issuances:

---

| | | | |
|:---|:---|:---|:---|
|  | **August 26, 2022** | **September 2, 2022** | **Total** |
| **Balance, December 31, 2021** | $**-** | $**-** | $**-** |
| Liability incurred for flow-through shares issued August 26, 2022 | 1181 |  | 1181 |
| Settlement of flow-through share premium liability upon incurring eligible expenditures | (309) |  | (309) |
| Liability incurred for flow-through shares issued September 2, 2022  | - | 170 | 170 |
| **Balance, December 31, 2022** | $**872** | $**170** | $**1042** |

---

As at December 31, 2022, the Company had $4,090,000 (December 31, 2021 – $Nil) of unspent flow-through expenditure commitments.

**14. SHARE CAPITAL**

**a) Authorized**

Unlimited number of common shares with no par value.

Unlimited number of preferred shares with no par value.

**b) Issued and Fully Paid**

Common shares as at December 31, 2022: 802,226,149 (December 31, 2021 – 700,200,059).

Preferred shares as at December 31, 2022: nil (December 31, 2021 – nil).

**Non-Brokered Private Placement Financing**

On September 2, 2022, the Company completed a non-brokered private placement raising aggregate gross proceeds of $5,325,000 (the "September Offering"). Pursuant to the September Offering, the Company issued an aggregate of 17,749,868 flow-through units of the Company (the "FT Units") at a price of $0.30 per FT Unit. In connection with the September Offering, the Company paid issuance costs of $271,000 in cash. Each FT Unit consisted of one flow-through common share of the Company that qualifies as a "flow-through share" for the purposes of the *Income Tax Act* (Canada) (the "ITA"). An amount of $3,703,000 ($3,974,000 net of issuance costs of $271,000) was recorded in share capital and the remaining $1,351,000, representing the implied premium, was recorded as a flow-through share premium liability. As at December 31, 2022, the Company had a balance of $1,042,000 as flow-through share premium liability (see Note 13).

**c) Warrants**

The movements in warrants during the years ended December 31, 2022 and December 31, 2021 are summarized as follows:

---

| | | |
|:---|:---|:---|
|  | **Number** | **Weighted average exercise price** |
| **Balance as at December 31, 2020** | **93085657** | $**0.48** |
| Warrants issued | 2100228 | 0.38 |
| Warrants exercised | (265650) | 0.33 |
| Warrants expired | (3027615) | 0.44 |
| **Balance as at December 31, 2021** | **91892620** | $**0.48** |
| Warrants issued |  |  |
| Warrants exercised |  |  |
| Warrants expired | (41545383) | 0.57 |
| **Balance as at December 31, 2022** | **50347237** | $**0.35** |

---

**14. SHARE CAPITAL (continued)**

The following table summarizes information about warrants outstanding as at December 31, 2022:

---

| | | | |
|:---|:---|:---|:---|
| **Exercise price** | **Number of warrants outstanding** | **Weighted average exercise price** <br>($ per share) | **Weighted average remaining life (years)** |
| $0.31 | 18247009 | $0.31 | 0.15 |
| $0.37 | 32050228 | 0.37 | 2.50 |
| $0.42 | 50000 | 0.42 | 0.58 |
|  | **50347237** | $**0.35** | **1.65** |

---

There were no warrants issued during the year ended December 31, 2022.

**d) Stock Options**

The Company has adopted an amended and restated share-based compensation plan (the "Plan") that allows for the granting of stock options to directors, officers, employees and certain consultants of the Company for up to 10% of the Company's issued and outstanding common shares (inclusive of other equity awards granted under the Plan). Stock options granted under the plan may be subject to vesting provisions as determined by the Board of Directors.

The movements in stock options during the years ended December 31, 2022 and December 31, 2021 are summarized as follows:

---

| | | |
|:---|:---|:---|
|  | **Number** | **Weighted average exercise price** |
| **Balance as at December 31, 2020** | **45820000** | $**0.53** |
| Options granted | 12190000 | 0.23 |
| Options exercised | (2287500) | 0.25 |
| Options forfeited | (7820000) | 0.75 |
| Options expired | (2762500) | 0.39 |
| **Balance as at December 31, 2021** | **45140000** | $**0.44** |
| Options granted | 16010000 | 0.26 |
| Options exercised |  |  |
| Options expired | (13146250) | 0.63 |
| Options forfeited | (1631250) | 0.31 |
| **Balance as at December 31, 2022** | **46372500** | $**0.37** |

---

The weighted average closing share price at the date of exercise for the year ended December 31, 2022 was nil (December 31, 2021 – $0.44). There were no stock options exercised during the year ended December 31, 2022 (December 31, 2021 – 2,287,500).

**14. SHARE CAPITAL (continued)**

The following table summarizes information about the stock options outstanding as at December 31, 2022:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Options Outstanding** | **Options Outstanding** | **Options Outstanding** | **Options Exercisable** | **Options Exercisable** | **Options Exercisable** |
| <br>**Exercise price** | **Number of options** | **Weighted average exercise price** <br>**($ per share)** | **Weighted average remaining life (years)** | **Number of options** | **Weighted average exercise price** <br>**($ per share)** | **Weighted average remaining life (years)** |
| $0.205 – 0.50 | 41522500 | $0.34 | 2.72 | 33380000 | $0.36 | 2.36 |
| $0.51 – 1.00 | 4850000 | $0.60 | 0.04 | 4850000 | $0.60 | 0.04 |
|  | **46372500** | $**0.37** | **2.44** | **38230000** | $**0.39** | **2.07** |

---

During the year ended December 31, 2022, there were 16,010,000 (December 31, 2021 – 12,190,000) stock options granted with an aggregate fair value at the date of grant of $2,173,644 (December 31, 2021 - $2,832,105), or a weighted average fair value of $0.14 per option (December 31, 2021 – $0.23). As at December 31, 2022, 8,142,500 (December 31, 2021 – 6,463,750) stock options remain unvested with an aggregate grant date fair value of $1,100,717 (December 31, 2021 - $1,436,689).

Certain stock options granted were directly attributable to exploration and evaluation expenditures on mineral properties and were therefore capitalized to mineral properties. In addition, certain stock options were subject to vesting provisions. These two factors result in differences between the aggregate fair value of stock options granted and total share-based payments expensed during the periods. Total share-based payments expensed during the years ended December 31, 2022 and 2021 were classified within the financial statements as follows:

---

| | | |
|:---|:---|:---|
| | **For the year ended December 31,** | **For the year ended December 31,** |
| <br>**Statements of Net Loss:** | **2022** | **2021** |
| General and administration | $1235 | $1235 |
| Exploration and evaluation | 44 | 312 |
| Investor relations and marketing communications | 149 | 265 |
| Corporate development and due diligence | 145 | 186 |
| **Subtotal** | $**1573** | $**1998** |
| **Statements of Financial Position:** |  |  |
| Mineral Properties | 854 | 894 |
| **Total** | $**2427** | $**2892** |

---

**14. SHARE CAPITAL (continued)**

The grant date fair value of the stock options recognized in the period has been estimated using the Black-Scholes option pricing model with the following weighted average assumptions:

---

| | | |
|:---|:---|:---|
|  | **Year ended**<br>**December 31, 2022** | **Year ended** <br>**December 31, 2021** |
| Risk-free interest rate | 1.87% | 0.86% |
| Share price at grant date (in dollars) | $0.27 | $0.44 |
| Exercise price (in dollars) | $0.27 | $0.41 |
| Expected life (years) | 5.00 years | 5.00 years |
| Expected volatility <sup>(1)</sup> | 63.97% | 67.89% |
| Forfeiture rate | 7.50% | 7.50% |
| Expected dividend yield | Nil | Nil |

---

<sup>(1)</sup> The computation of expected volatility was based on the Company's historical price volatility, over a period which approximates the expected life of the option.

**e) Restricted Share Units**

During the year ended December 31, 2022, the Company granted 1,090,000 restricted share units ("RSUs") under the Plan to the Company's executive officers as part of the Company's long-term incentive plan ("LTIP"). Unless otherwise stated, the awards typically have a graded vesting schedule over a three-year period and will be settled in equity upon vesting. The Company intends to settle all RSUs in equity.

The associated compensation cost, which is based on the underlying share price on the date of grant, is recorded as share-based payments expense against share-based payment reserve.

The following table summarizes the changes in RSUs for the year ended December 31, 2022:

---

| | | |
|:---|:---|:---|
|  | **Number** | **Weighted average fair value** |
| **Balance as at December 31, 2021** | **1550000** | $**0.40** |
| Granted – February 3, 2022 | 1090000 | 0.25 |
| RSUs settled | (516664) | 0.40 |
| RSUs forfeited | (233334) | 0.40 |
| **Balance as at December 31, 2022** | **1890002** | $**0.31** |

---

**14. SHARE CAPITAL (continued)**

**f) Deferred Share Units**

During the year ended December 31, 2022, the Company granted 356,000 deferred share units ("DSUs") under the Plan to certain directors as part of the Company's LTIP. DSUs have a graded vesting schedule over an 18-month period and will be settled in equity upon vesting.

The associated compensation cost, which is based on the underlying share price on the date of grant, is recorded as share-based payments expense against share-based payment reserve.

---

| | | |
|:---|:---|:---|
|  | **Number** | **Weighted average fair value** |
| **Balance as at December 31, 2021** | **303000** | $**0.36** |
| Granted – February 11, 2022 | 356000 | 0.26 |
| **Balance as at December 31, 2022** | **659000** | $**0.30** |

---

**g) Performance Share Units**

During the year ended December 31, 2022, the Company granted 1,913,000 performance share units ("PSUs") under the Plan to certain executives as part of the Company's LTIP. The amount of shares ultimately to be issued will vary from a factor of 0 to 2 based on the number of PSUs granted, depending on the Company's share performance as compared to the share performance of a selected group of peer companies.

The estimated value of the PSUs is determined at the grant date using a Monte Carlo simulation model. The model is based on several assumptions, including the share price volatility of the Company's stock, as well as the volatility of the selected group of peer companies and the correlation of returns between the peer group and the Company.

The following table summarizes the changes in PSUs for the year ended December 31, 2022:

---

| | | |
|:---|:---|:---|
|  | **Number** | **Weighted average fair value** |
| **Balance as at December 31, 2021** | **-** | $**-** |
| Granted – December 16, 2022 | 1913000 | 0.15 |
| **Balance as at December 31, 2022** | **1913000** | $**0.15** |

---

**15. OPERATING EXPENSES**

Operating expenses by nature, which map to the Company's functional operating expense categories presented in the consolidated statements of net loss and comprehensive loss, are as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | **For the year ended December 31, 2022** | **For the year ended December 31, 2022** | **For the year ended December 31, 2022** | **For the year ended December 31, 2022** | **For the year ended December 31, 2022** |
|  | **General and administration** | **Exploration and evaluation** | **Investor relations and marketing communications** | **Corporate development and due diligence** | **Total** |
| Administrative and office | $328 | $125 | $17 | $13 | $483 |
| Consultants | 432 | 12 |  | 1 | 445 |
| Depreciation (non-cash) | 235 | 176 |  |  | 411 |
| Directors fees | 296 |  |  |  | 296 |
| Investor relations and marketing communications | 25 | 3 | 721 | 8 | 757 |
| Professional fees | 974 | 48 |  |  | 1022 |
| Salaries | 1233 | 209 | 377 | 230 | 2049 |
| Share-based payments <br>(non-cash) (Note 14(d)) | 1235 | 44 | 149 | 145 | 1573 |
| Transfer agent and filing fees | 123 |  | 16 |  | 139 |
| Travel and accommodation | 81 | 22 | 114 | 24 | 241 |
| **Operating expenses total** | $**4962** | $**639** | $**1394** | $**421** | $**7416** |
| Fair value adj. of non-current assets (non-cash) (Notes 8 & 10) |  |  |  |  | **10361** |
| **Loss from operational activities** |  |  |  |  | $**17777** |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | **For the year ended December 31, 2021** | **For the year ended December 31, 2021** | **For the year ended December 31, 2021** | **For the year ended December 31, 2021** | **For the year ended December 31, 2021** |
|  | **General and administration** | **Exploration and evaluation** | **Investor relations and marketing communications** | **Corporate development and due diligence** | **Total** |
| Administrative and office | $347 | $98 | $63 | $1 | $509 |
| Consultants | 227 | 61 | 120 |  | 408 |
| Depreciation (non-cash) | 168 | 152 |  |  | 320 |
| Directors fees | 294 |  |  |  | 294 |
| Investor relations and<br>marketing communications |  | 1 | 1333 |  | 1334 |
| Professional fees | 1298 |  |  |  | 1298 |
| Legal expenses | 1120 |  |  |  | 1120 |
| Salaries | 1174 | 318 | 393 | 319 | 2204 |
| Share-based payments <br>(non-cash) (Note 14(d)) | 1235 | 312 | 265 | 186 | 1998 |
| Transfer agent and filing fees | 368 |  | 44 |  | 412 |
| Travel and accommodation | 34 | 18 | 29 | 3 | 84 |
| **Operating expenses total** | $**6265** | $**960** | $**2247** | $**509** | $**9981** |
| Fair value adj. of non-current assets (non-cash)  |  |  |  |  | **24304** |
| **Loss from operational activities** |  |  |  |  | $**34285** |

---

**16. SEGMENT INFORMATION**

The Company operates in a single reportable operating segment, being the acquisition, exploration, development and strategic disposition of its North American mineral properties. Geographic information about the Company's non-current assets, excluding financial instruments, as at December 31, 2022 and December 31, 2021 is as follows: Canada - $251,941,000 (December 31, 2021 - $209,739,000) and USA - $132,000 (December 31, 2021 - $226,000).

**17. INCOME TAXES** 

---

| | | |
|:---|:---|:---|
|  | **Year ended December 31, 2022** | **Year ended December 31, 2021** |
| Net loss before income tax | $16588 | $38350 |
| Combined Canadian statutory income tax rate | 27.00% | 27.00% |
| Income tax recovery computed at statutory income tax rate | 4479 | 10356 |
| Tax effect of: |  |  |
| &nbsp;&nbsp;&nbsp;Permanent differences and other | 1557 | (2166) |
| &nbsp;&nbsp;&nbsp;Investment in Treasury Metals | (1324) | (3878) |
| &nbsp;&nbsp;&nbsp;Investment in PC Gold | (201) | 2169 |
| &nbsp;&nbsp;&nbsp;Flow-though eligible expenditures | (327) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share issued costs  | 73 | - |
| &nbsp;&nbsp;&nbsp;Difference in tax rates in foreign jurisdictions | 1 |  |
| &nbsp;&nbsp;&nbsp;Flow-through share premium liability | 309 |  |
| Changes in unrecognized deferred tax assets | (4023) | (6481) |
| **Income tax recovery**  | $**309** | $**-** |

---

Deferred tax assets and liabilities are offset if they relate to the same taxable entity and the same taxation authority.

No deferred tax asset has been recognized in respect to the losses and temporary differences below, as it is not considered probable that sufficient future taxable profit will allow the deferred tax asset to be recovered.

Recognized deferred income tax assets (liabilities) are arising from:

---

| | | |
|:---|:---|:---|
|  | **December 31, 2022** | **December 31, 2021** |
| Non-capital loss carryforwards | $3115 | $2969 |
| Mineral properties | (3033) | (2379) |
| Mineral property investments | (82) | (590) |
| **Total** | $**-** | $**-** |

---

**17. INCOME TAXES (continued)**

Deferred tax assets have not been recognized in respect of the following temporary differences:

---

| | | |
|:---|:---|:---|
|  | **December 31, 2022** | **December 31, 2021** |
| Non-capital loss carryforwards | $51574 | $50144 |
| Investment in Treasury Metals | 30408 | 20497 |
| Investment in PC Gold | 14428 | 14430 |
| Investment in Big Ridge | 2241 | 694 |
| Silver Stream derivative liability | 9985 | 8927 |
| Investment tax credits | 5209 | 5209 |
| Other | 1519 | 1432 |
| Undeducted financing costs | 217 | 1398 |
| Property and equipment | 1057 | 986 |
| Mineral properties | 1997 | 2404 |
| Capital loss carryforwards | 31820 | 16267 |
| **Total** | $**150455** | $**122388** |

---

As at December 31, 2022, the Company and its subsidiaries had unrecognized Canadian non-capital loss carryforwards of approximately $63,256,000 (2021 - $61,266,000) which expire between the years 2025 and 2041, unrecognized Canadian capital loss carryforwards of approximately $31,820,000 (2021 - $13,644,000) which can be carried forward indefinitely, unrecognized Canadian investment tax credits of approximately $5,209,000 (2021 - $5,209,000) which expire between the years 2026 and 2034.

**18. RELATED PARTY TRANSACTIONS**

The Company's related parties consist of the Company's Directors and Officers. Key management consists of Directors, Officers and Vice Presidents of the Company. The compensation paid or payable to key management for services during the years ended December 31, 2022 and 2021 is as follows:

---

| | | |
|:---|:---|:---|
| **Service or Item**  | **Year ended December 31,** | **Year ended December 31,** |
|  | **2022** | **2021** |
| Directors' fees | $296 | $294 |
| Salaries and consultants' fees | 2089 | 2188 |
| Share-based payments (non-cash) | 1669 | 1128 |
| **Total** | $**4054** | $**3610** |

---

**19. SUPPLEMENTAL CASH FLOW INFORMATION**

During the year ended December 31, 2022, the significant non-cash investing and financing transactions were as follows:

---

| | |
|:---|:---|
| ●  | 79,164,460 common shares issued with a value of $17,391,000 in connection with the Duparquet acquisition (Note 4); |
| ●  | 4,708,127 common shares issued with a value of $1,250,000 in connection with other mineral property acquisitions; |
| ●  | Received 1,544,944 common shares of Westward Gold Inc. in connection with the Earn-In Agreement associated with the Turquoise Canyon Project in Nevada, USA (initial recognition - $110,000, December 31, 2021 – nil) (Note 5); and |
| ●  | Received 15,000,000 common shares of Big Ridge Gold Corp. (initial recognition - $2,175,000, December 31, 2021 – nil) in connection with the Big Ridge Earn-In Agreement (Note 10). |
| During the year ended December 31, 2021, the significant non-cash investing and financing transactions were as follows: | During the year ended December 31, 2021, the significant non-cash investing and financing transactions were as follows: |
| ●  | 1,107,035 common shares issued with a value of $385,000 in connection with mineral property acquisitions; |
| ●  | Received 287,300 common shares of First Majestic in connection with the Silver Purchase Agreement (initial recognition - $5,631,000, December 31, 2021 – nil) (Note 11); and |
| ●  | Received 100,000,000 common shares of Auteco (initial recognition - $8,640,000, December 31, 2021 – $6,720,000) in connection with the Auteco Earn-In Agreement (Note 8). |

---

**20. FAIR VALUE**

Fair values have been determined for measurement and/or disclosure requirements based on the methods below.

The Company characterizes fair value measurements using a hierarchy that prioritizes inputs depending on the degree to which they are observable. The three levels of the fair value hierarchy are as follows:

● Level 1 fair value measurements are quoted prices (unadjusted) in active markets for identical assets or liabilities;

● Level 2 fair value measurements are those derived from inputs other than quoted prices included within level 1 that are observable for the asset or liability, either directly (i.e. as prices) or indirectly (i.e. derived from prices); and

● Level 3 fair value measurements are those derived from valuation techniques that include significant inputs for the asset or liability that are not based on observable market data (unobservable inputs).

The carrying values of cash and cash equivalents, current accounts receivables, and accounts payable and accrued liabilities approximated their fair values because of the short-term nature of these financial instruments. These financial instruments are financial assets and liabilities at amortized cost.

The carrying value of investments was based on the quoted market prices of the shares as at December 31, 2022 and was therefore considered to be Level 1.

As the Auteco Earn-In Agreement provides Auteco the right to earn an interest in PC Gold Inc., rather than a direct interest in the Pickle Crow project, Auteco's option to acquire PC Gold shares is a financial liability of First Mining. As a derivative, the Pickle Crow project option liability is classified as financial liability at FVTPL. The carrying value of the Option - Pickle Crow Gold Project is not based on observable market data and therefore is considered to be Level 3.

**20. FAIR VALUE (continued)**

The fair value of the Option – Pickle Crow Gold Project as at December 31, 2022 was determined by reference to the portion of the estimated fair value of PC Gold Inc. to be given up by the Company with the option for Auteco to earn an additional 10%, net of $3,000,000 proceeds to be received on exercise.

The Silver Stream was determined to be a derivative liability, which is classified as a financial liability at FVTPL. The carrying value of the derivative liability was not based on observable market data and involved complex valuation methods and was therefore considered to be Level 3. The following table presents the Company's fair value hierarchy for financial assets and liabilities that are measured at fair value:

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | **December 31, 2022** | **December 31, 2022** | **December 31, 2022** | **December 31, 2022** | **December 31, 2021** | **December 31, 2021** | **December 31, 2021** | **December 31, 2021** |
|  | | **Fair value measurement** | **Fair value measurement** | **Fair value measurement** | | **Fair value measurement** | **Fair value measurement** | **Fair value measurement** |
|  | <br>**Carrying value** | **Level 1** | **Level 2** | **Level 3** | <br>**Carrying value** | **Level 1** | **Level 2** | **Level 3** |
| **Financial assets:**  |  |  |  |  |  |  |  |  |
| Investments (Note 5) | $184 | $184 | $- | $- | $13386 | $13386 | $- | $- |
| Mineral property investments  | - | - | - | - | 6435 | - | - | 6435 |
| **Financial liabilities:**  |  |  |  |  |  |  |  |  |
| Silver Stream derivative liability (Note 11(b)) | 27171 |  |  | 27171 | 26114 |  |  | 26114 |
| Option – PC Gold (Note 7(d)) | $5216 | $- | $- | $5216 | $4347 | $- | $- | $4347 |

---

During the year ended December 31, 2022, there has been a transfer out of level 3 in the fair value hierarchy related to the Company's acquisition of the remaining 90% interest in each of 269 Canada, 258 Manitoba and Beattie Gold requiring a reclassification from Mineral Property Investments to Mineral Properties.

The classification of the financial instruments as well as their carrying values as at December 31, 2022 and 2021 is shown in the table below:

---

| | | | | |
|:---|:---|:---|:---|:---|
| **At December 31, 2022** | | | | |
|  |<br>**Amortized Cost** | **FVTPL** | **FVTOCI** |<br>**Total** |
| **Financial assets:** |  |  |  |  |
| Cash and cash equivalents | $13558 | $- | $- | $13558 |
| Current accounts and other receivables | 499 |  |  | 499 |
| Investments |  | 184 |  | 184 |
| Mineral property investments | - | - | - | - |
| **Total financial assets** | $**14057** | $**184** | $**-** | $**14241** |
| **Financial liabilities:** |  |  |  |  |
| Accounts payable and accrued liabilities | $2847 | $- | $- | $2847 |
| Option – PC Gold |  | 5216 |  | 5216 |
| Silver Stream derivative liability | - | 27171 | - | 27171 |
| **Total financial liabilities** | $**2847** | $**32387** | $**-** | $**35234** |

---

**20. FAIR VALUE (continued)**

---

| | | | | |
|:---|:---|:---|:---|:---|
| **At December 31, 2021** | | | | |
|  |<br>**Amortized Cost** | **FVTPL** | **FVTOCI** |<br>**Total** |
| **Financial assets:** |  |  |  |  |
| Cash and cash equivalents | $29516 | $- | $- | $29516 |
| Current accounts and other receivables | 604 |  |  | 604 |
| Investments |  | 8400 | 4986 | 13386 |
| Mineral property investments | - | - | 6435 | 6435 |
| **Total financial assets** | $**30120** | $**8400** | $**11421** | $**49941** |
| **Financial liabilities:** |  |  |  |  |
| Accounts payable and accrued liabilities | $4491 | $- | $- | $4491 |
| Option – PC Gold |  | 4347 |  | 4347 |
| Silver Stream derivative liability | - | 26114 | - | 26114 |
| **Total financial liabilities** | $**4491** | $**30461** | $**-** | $**34952** |

---

**21. FINANCIAL AND CAPITAL RISK MANAGEMENT** 

The Company thoroughly examines the various financial instruments and risks to which it is exposed and assesses the impact and likelihood of those risks. These risks include market risk (including equity price risk, foreign currency risk, interest rate risk and commodity price risk), credit risk, liquidity risk, and capital risk. Where material, these risks are reviewed and monitored by the Board of Directors.

The Board of Directors has overall responsibility for the determination of the Company's risk management objectives and policies. The overall objective of the Board is to set policies that seek to reduce risk as far as possible without unduly affecting the Company's competitiveness and flexibility.

**a) Market Risk**

Market risk is the risk that the fair value of future cash flows of a financial instrument will fluctuate due to changes in market prices. Market risk includes equity price risk, foreign currency risk, interest rate risk and commodity price risk.

***Equity Price Risk***

The Company is exposed to equity price risk as a result of holding investments in equity securities, which are comprised of marketable securities and mineral property investments, in other mineral property exploration companies.

If the fair value of our investments in equity instruments designated as FVTPL had been 10% higher or lower as at December 31, 2022, net loss for the year ended December 31, 2022 would have decreased or increased, respectively, by $nil (2021 – $840,000), as a result of changes in the fair value of equity investments. If the fair value of our investments in equity instruments designated as FVTOCI had been 10% higher or lower as at December 31, 2022, other comprehensive income (loss) for the year ended December 31, 2021 would have decreased or increased, respectively, by approximately $18,000 (2021 – $1,142,000), as a result of changes in the fair value of equity investments.

**21. FINANCIAL AND CAPITAL RISK MANAGEMENT (continued)**

***Foreign Currency Risk***

As at December 31, 2022, the Company held USD denominated cash and cash equivalents of $10,992,000 (2021 - $2,117,000). The Company has not hedged its exposure to currency fluctuations.

***Interest Rate Risk***

Interest rate risk is the risk that future cash flows will fluctuate as a result of changes in market interest rates. The Company does not have any borrowings that are subject to fluctuations in market interest rate. Interest rate risk is limited to potential decreases on the interest rate offered on cash and cash equivalents held with chartered Canadian financial institutions. The Company manages its interest rate risk by seeking to optimize the interest income earned on excess funds while maintaining the necessary liquidity to conduct its day-to-day operations. The Company considers this risk to be immaterial.

***Commodity price risk***

The Company is subject to commodity price risk from fluctuations in the market prices for silver. Commodity price risks are affected by many factors that are outside the Company's control including global or regional consumption patterns, the supply of and demand for metals, speculative activities, the availability and costs of metal substitutes, inflation, and political and economic conditions. The financial instrument impacted by commodity prices is the Silver Stream derivative liability.

**b) Credit Risk**

Credit risk is the risk of financial loss to the Company if a customer or counterparty to a financial instrument fails to meet its contractual obligations. Financial instruments which are potentially subject to credit risk for the Company consist primarily of cash and cash equivalents, accounts and other receivables, and the reclamation deposit. The Company considers credit risk with respect to its cash and cash equivalents to be immaterial as cash and cash equivalents are mainly held through high credit quality major Canadian financial institutions as determined by ratings agencies.

**c) Liquidity Risk**

Liquidity risk is the risk that the Company will not be able to meet its financial obligations as they become due. The Company's policy is to ensure that it will have sufficient cash to allow it to meet its liabilities when they become due, under both normal and stressed conditions, without incurring unacceptable losses or risking damage to the Company's reputation. The Company manages its liquidity risk by preparing annual estimates of exploration and administrative expenditures and monitoring actual expenditures compared to the estimates to ensure that there is sufficient capital on hand to meet ongoing obligations.

The following table summarizes the maturities of the Company's financial liabilities as at December 31, 2022 based on the undiscounted contractual cash flows:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | **Carrying Amount** | **Contractual Cash Flows** | **Less than 1 year** | **1 – 3** <br>**years** | **4 – 5** <br>**years** | **After 5 years** |
| Accounts payable <br>and accrued liabilities | $2847 | $2847 | $2847 | $- | $- | $- |
| Lease liability | 315 | 350 | 168 | 182 | - | - |

---

**21. FINANCIAL AND CAPITAL RISK MANAGEMENT (continued)**

As at December 31, 2022, the Company held cash and cash equivalents of $13,558,000 (December 31, 2021 - $29,516,000). The Company believes it has sufficient cash on hand to meet operating requirements as they arise for at least the next 12 months.

**d) Capital Risk Management**

The Company's objectives when managing capital are to safeguard the Company's ability to continue as a going concern in order to pursue the exploration and retention of its mineral properties. The Company has historically demonstrated the ability to raise new capital through equity issuances and/or through surplus cash as part of its acquisitions. In the management of capital, the Company includes the components of shareholders' equity as well as cash. The Company prepares annual estimates of exploration and administrative expenditures and monitors actual expenditures compared to the estimates to ensure that there is sufficient capital on hand to meet ongoing obligations.

**22. SUBSEQUENT EVENTS**

**a) Incentive Grants** 

Subsequent to December 31, 2022, the Company granted the following incentive grants:

**Stock Options** 

The Company granted 16,075,000 stock options to Directors, Officers, employees and consultants of the Company under the terms of its share-based compensation plan. The stock options have a weighted average exercise price of $0.19 per share and are exercisable for a period of five years from the grant date.

**RSUs**

The Company granted 2,817,045 RSUs to Officers of the Company under the terms of its share-based compensation plan. The awards have a graded vesting schedule over a three-year period and will be settled in equity upon vesting.

**DSUs**

The Company granted 450,000 DSUs to Directors of the Company under the terms of its share-based compensation plan. The awards have a graded vesting schedule over an 18-month period and will be settled in equity upon vesting.

**PSUs**

The Company granted 4,900,000 PSUs to Officers and employees of the Company under the terms of its share-based compensation plan. The awards vest over a three-year period and will be settled in equity upon vesting. The amount of shares ultimately to be issued will vary from a factor of 0 to 2 based on the number of PSUs granted, depending on the Company's share performance as compared to the share performance of a selected group of peer companies.

**b) Cancelled Stock Options and RSUs** 

Subsequent to December 31, 2022, the Company cancelled 930,000 unvested incentive stock options and 330,002 unvested RSUs related to the departure of employees.

**22. SUBSEQUENT EVENTS (continued)**

**c) Quebec Claims**

Subsequent to December 31, 2022, the Company entered into an agreement to acquire property adjacent to the Company's Duparquet Gold Project from IAMGold Corporation for total consideration of:

---

| |
|:---|
| 2.5 million First Mining common shares issued upon closing of the transaction; |
| The granting of a 1.5% net smelter return royalty on the property; |
| A future contingent payment of $500,000, in cash or First Mining common shares, on the declaration of a minimum of 350,000 koz gold resource on the property; and |
| A future contingent payment of $1,000,000, in cash or First Mining common shares, to be paid within 12 months of commercial production being declared at the Duparquet Gold Project, as long as any major surface infrastructure related to the Duparquet Gold Project has been constructed on the Porcupine East Property. |

---

**d) Notice of Non-Compliance**

On February 15, 2023, the Company's wholly-owned subsidiary received a Notice of Non-Compliance (the "Non-Compliance Notice") from the Ministry of the Environment, the Fight Against Climate Change, Wildlife and Parks ("MELCCFP") in Quebec regarding certain historic hazardous material on the Duparquet property. Since acquiring the Duparquet Project, the Company has been proactively working with MELCCFP in respect of this historical environmental issue, and it will be filing an initial management plan with MELCCFP by March 31, 2023. Pursuant to the Non-Compliance Notice, MELCCFP may issue an administrative penalty of $10,000 against the Company, but no such penalty has been issued to date.

**e) Royalty Sale**

On February 21, 2023, the Company sold its non-core royalty portfolio to Elemental Altus Royalties Corp. ("Elemental Altus") for total consideration of approximately $6.7 million, comprised of $4.7 million in cash and 1,598,162 common shares of Elemental Altus. The royalty portfolio sale was comprised of 19 royalties across four countries and included a 2.0% NSR royalty on the Pickle Crow Gold Project and a 1.5% NSR royalty on the Hope Brook Gold Project.

## Exhibit 99.3

**EXHIBIT 99.3**

![](firstmining_ex992img1.jpg)

**TSX: FF \| OTCQX: FFMGF \| FRANKFURT: FMG**

**MANAGEMENT'S** 

**DISCUSSION & ANALYSIS**

**FOR THE YEAR ENDED DECEMBER 31, 2022**

![](firstmining_ex992img8.jpg)

Suite 2070 – 1188 West Georgia Street, Vancouver, British Columbia V6E 4A2 <br> <u>www.firstmininggold.com</u>\| 1-844-306-8827<br>

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**TABLE OF CONTENTS**

---

| | |
|:---|:---|
| COMPANY OVERVIEW AND STRATEGY | 2 |
| 2022 HIGHLIGHTS | 2 |
| SELECT FINANCIAL INFORMATION | 4 |
| ONTARIO MINERAL PROPERTY PORTFOLIO LOCATIONS <sup>(1)</sup> | 6 |
| MINERAL PROPERTY PORTFOLIO GOLD RESERVES <sup>(1)</sup> | 7 |
| MINERAL PROPERTY PORTFOLIO GOLD RESOURCES <sup>(1)</sup> | 8 |
| MINERAL PROPERTY PORTFOLIO REVIEW | 9 |
| SELECT QUARTERLY FINANCIAL INFORMATION | 27 |
| RESULTS OF CONTINUING OPERATIONS | 28 |
| FINANCIAL CONDITION, LIQUIDITY AND CAPITAL RESOURCES | 30 |
| FINANCIAL INSTRUMENTS | 31 |
| RELATED PARTY TRANSACTIONS | 31 |
| OFF-BALANCE SHEET ARRANGEMENTS | 31 |
| FINANCIAL LIABILITIES AND COMMITMENTS | 31 |
| NON-IFRS MEASURES | 32 |
| ACCOUNTING POLICIES | 32 |
| CRITICAL ACCOUNTING ESTIMATES | 32 |
| CRITICAL ACCOUNTING JUDGMENTS | 32 |
| ACCOUNTING STANDARDS ISSUED BUT NOT YET APPLIED | 33 |
| RISKS AND UNCERTAINTIES | 33 |
| QUALIFIED PERSONS | 36 |
| SECURITIES OUTSTANDING | 36 |
| DISCLOSURE CONTROLS AND PROCEDURES | 37 |
| MANAGEMENT'S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING | 37 |
| LIMITATIONS OF CONTROLS AND PROCEDURES | 37 |
| FORWARD-LOOKING INFORMATION | 37 |
| CAUTIONARY NOTE TO U.S. INVESTORS | 39 |

---

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**GENERAL**

This Management's Discussion and Analysis ("**MD&A**") should be read in conjunction with the audited consolidated annual financial statements of First Mining Gold Corp. (the "**Company**" or "**First Mining**") for the years ended December 31, 2022 and 2021, which have been prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board ("**IFRS**"). These documents along with additional information on the Company, including the Company's Annual Information Form ("**AIF**") for the year ended December 31, 2022, are available under the Company's SEDAR profile at <u>www.sedar.com</u>, on EDGAR at <u>www.sec.gov</u>.

In this MD&A, unless the context otherwise requires, references to the "Company", "First Mining", "we", "us", and "our" refer to First Mining Gold Corp. and its subsidiaries.

This MD&A contains "forward-looking statements" and "forward-looking information" within the meaning of applicable Canadian securities laws. See the section in this MD&A titled "Forward-Looking Information" for further details. In addition, this MD&A has been prepared in accordance with the requirements of Canadian securities laws, which differ in certain material respects from the disclosure requirements of United States securities laws, particularly with respect to the disclosure of mineral reserves and mineral resources. See the section in this MD&A titled *"Cautionary Note to U.S. Investors Regarding Mineral Resource and Mineral Reserve Estimates"* for further details.

This MD&A contains disclosure of certain non-IFRS financial measures. Non-IFRS measures do not have any standardized meaning prescribed under IFRS. See the section in this MD&A titled *"Non-IFRS Measures"* for further details.

All dollar amounts included in this MD&A are expressed in Canadian dollars unless otherwise noted. This MD&A is dated as of March 28, 2023, and all information contained in this MD&A is current as of March 28, 2023.

**COMPANY OVERVIEW AND STRATEGY**

First Mining is advancing a portfolio of gold projects in Canada, with a focus on the Springpole Gold Project (the "**Springpole Project**" or "**Springpole**") in northwestern Ontario, including the surrounding Birch-Uchi mineral tenure, and the Duparquet Gold Project (the "**Duparquet Project**" or "**Duparquet**") in Quebec. Springpole is one of the largest undeveloped gold projects in Ontario. The Company has commenced a Feasibility Study ("**FS**") and permitting activities are on-going with a draft Environmental Impact Statement/ Environmental Assessment ("**EIS/EA**") for the Springpole Project issued for review and consultation in June 2022. The Birch-Uchi land tenure, located in the Birch Uchi Greenstone Belt, presents an exciting opportunity for discovery in an area which is historically underexplored and has only seen a fraction of the exploration work that has been done in the neighbouring Red Lake and Pickle Lake greenstone belts. In September 2022, First Mining acquired 100% ownership of the Duparquet Project, one of the largest undeveloped gold projects in Quebec. First Mining also owns the advanced-stage Cameron Gold Project in Ontario. The portfolio of First Mining's gold project interests includes a 30% interest in the Pickle Crow Gold Project in Ontario (being advanced in partnership with Auteco Minerals Ltd.), a 49% interest in the Hope Brook Gold Project in Newfoundland (being advanced in partnership with Big Ridge Gold Corp.) and an equity interest in Treasury Metals Inc. ("**Treasury Metals**").

**2022 HIGHLIGHTS**

The following highlights the Company's most recent developments (including subsequent events up to March 28, 2023).

**Project Highlights**

<u>Springpole</u>

· Advanced Feasibility Study work activities, including metallurgical test work, process design, preliminary pit slope guidelines and mine design, optimization studies on the Co-Disposal Facility, and 230 kV transmission line design including the required connectivity studies.

· Undertook detailed site characterization work to support Feasibility Study-level preliminary pit slope, dyke and Co-Disposal Facility design work.

· In the twelve months ended December 31, 2022, 5,843 metres ("m") of drilling was completed at the Springpole Gold Project, for geotechnical, hydrogeological, and acid rock drainage (ARD) test work and data collection purposes.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

● Published the draft Environmental Impact Statement/Environmental Assessment (EIS/EA) in June 2022 and progressed ongoing environmental fieldwork and studies. Received comments from government regulators and Indigenous communities on the draft EIS/EA and are in the process of providing responses to them.

● Continued engagement with local Indigenous rights holders, government regulators and stakeholders of the Springpole Project.

● Completed a summer field program over our Birch-Uchi mineral tenure consisting of soil geochemistry, mapping, and prospecting campaigns.

● Completed a targeted exploration drilling campaign on the Swain property, consisting of a 5-hole drill program totaling 1,560 m.

● Completed a 3,843 kilometre ()"**km**") line geophysical airborne survey over portions of the Birch-Uchi mineral tenure in October 2022, to further support district exploration targeting in 2023 and beyond.

<u>Duparquet</u>

· In February 2022, the Company announced that it had acquired an aggregate of 286,904 common shares of Beattie Gold Mines Ltd. ()"**Beattie** "), a private company that owns the mineral rights to mining claims that make up the former Beattie mining concession that form a large part of the Duparquet Gold Project located on the Destor-Porcupine Fault in Quebec. Together with the 187,839 common shares of Beattie already indirectly owned by the Company through its wholly-owned subsidiary, Clifton Star Resources Inc. ()"**Clifton Star** ", now called Duparquet Gold Mines Inc.), the Company increased its ownership in Beattie from 10% to 25.3% of the issued and outstanding common shares of Beattie.

· On September 12, 2022, the Company released an updated Mineral Resource Estimate for the Duparquet Project, and filed a technical report that was prepared for the Company by InnovExplo Inc. in accordance with National Instrument 43-101 *Standards of Disclosure for Mineral Projects* ()"**NI 43-101** "). It is titled "NI 43-101 Technical Report and Mineral Resource Estimate Update for the Duparquet Project, Quebec, Canada," dated October 6, 2022, with an effective date of September 12, 2022. The 2022 Mineral Resource Estimate for the Duparquet Project comprises 3.4 million ounces ()"**Moz**") of gold in the Measured and Indicated categories, plus an additional 1.6 Moz of gold in the Inferred category.

· On September 15, 2022, the Company announced that it had completed the acquisition of all of the issued and outstanding common shares of Beattie that were not already owned directly or indirectly by First Mining. In addition, First Mining also concurrently completed the acquisitions of 2699681 Canada Ltd. and 2588111 Manitoba Ltd. (the "**Concurrent Transactions** "), two private companies that hold surface rights and mining rights, respectively, with respect to the Duparquet Project. As a result, First Mining now owns 100% of the Duparquet Project. The total consideration for the acquisition of Beattie and the Concurrent Transactions was $8,727,177 in cash and the issuance of 71,532,516 common shares of First Mining ()"**First Mining Shares**") for a total transaction value of approximately $24 million. The carrying value related to the Beattie and Clifton Star previously held by the Company was transferred from mineral property investments to mineral properties at cost at the date of acquisition of the Concurrent Transactions. The total acquisition cost of the Duparquet Project, including the Company's initial investment in Beattie, 2699681 Canada Ltd. and 2588111 Manitoba Ltd. through Clifton Star, was $30.5 million in cash and the issuance of 79,169,460 common shares of First Mining ()"**First Mining Shares** ").

· On January 30, 2023, First Mining, through its wholly-owned subsidiary Duparquet Gold Mines Inc. (formerly, Clifton Star), entered into an agreement with IAMGOLD Corporation to acquire its Porcupine East Property located adjacent to the Company's Duparquet property and connecting the land package to its Pitt and Duquesne properties to the east.

**Corporate Highlights**

● On March 29, 2022, the Company announced the appointment of Jeffery Reinson as Chief Operating Officer.

● On August 11, 2022, the Company announced the resignation of the Company's former Chief Financial Officer, Andrew Marshall, and the appointment of Lisa Peterson as the Company's new Chief Financial Officer effective September 16, 2022.

● On September 2, 2022, the Company completed a non-brokered private placement of First Mining Shares issued on a flow-through basis ()"**FT Shares**") across two tranches, raising aggregate gross proceeds of $5,324,960 (the "**2022 FT Offering** "). The Company issued an aggregate of 17,749,868 FT Shares at a price of $0.30 per FT Share and paid issuance costs of $231,445 in cash.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

● On December 19, 2022, the Company sold its 1.5% net smelter returns ()"**NSR**") Royalty on the Goldlund gold property owned by Treasury Metals for US$7,000,000 (approximately $9.6 million) and recognized a gain on the sale of mineral properties of $5,872,000 less charges of $144,000.

● As of December 31, 2022, the Company's cash balance was $13.6 million, the investments position was $0.2 million and the equity interests in Treasury Metals, PC Gold Inc. (Pickle Crow Project), and Big Ridge Gold Corp. (Hope Brook Project) had a combined carrying value of $29.3 million.

● On February 21, 2023, the Company sold all of the common shares of a wholly-owned subsidiary of the Company the held its non-core royalty portfolio to Elemental Altus Royalties Corp. ()"**Elemental Altus**") for approximately $4.7 million in cash and 1,598,162 common shares of Elemental Altus for total consideration of approximately $6.7 million.

● The Company continues to evaluate the potential impacts arising from COVID-19 on all aspects of its business. For the year ended December 31, 2022, there were no significant operational or financial impacts on the Company.

**SELECT FINANCIAL INFORMATION**

---

| | | | |
|:---|:---|:---|:---|
| **Financial Results (in $000s Except for per Share Amounts):** | **For the twelve months ended December 31** | **For the twelve months ended December 31** | **For the twelve months ended December 31** |
|  | **2022** | **2021** | **2020** |
| Mineral Property Cash Expenditures<sup>(1)</sup> | $25113 | $15771 | $17629 |
| Net Loss | (16279) | (38350) | (32815) |
| Total Cash Used in Operating Activities<sup>(3)</sup> | (5082) | (6443) | (4222) |
| Basic and Diluted Net Loss Per Share <br> (in Dollars)<sup>(4)</sup> | $(0.02) | $(0.05) | $(0.05) |

---

---

| | | | |
|:---|:---|:---|:---|
| **Financial Position (in $000s):** | **December 31,** | **December 31,**  | **December 31,**  |
|  | **2022** | **2021** | **2020** |
| Cash and Cash Equivalents | $13558 | $29516 | $28901 |
| Working Capital<sup>(2)</sup> | 5612 | 33956 | 9201 |
| Investments | 184 | 13386 | 18425 |
| Mineral Properties  | 221147 | 170017 | 179429 |
| Investment in Treasury Metals Inc. | 5592 | 15400 | 63812 |
| Investment in PC Gold Inc. (Pickle Crow Project) | 21572 | 21570 |  |
| Investment in Big Ridge Gold Corp. (Hope Brook Project) | 2119 | 1491 |  |
| Total Assets | 266933 | 260309 | 301213 |
| Total Non-current Liabilities | $30015 | $27419 | $16835 |

---

---

| | | | |
|:---|:---|:---|:---|
| **Total Investments (in $000s):** | **December 31,** | **December 31,**  | **December 31,**  |
|  | **2022** | **2021** | **2020** |
| Current Investments | $184 | $13386 | $18425 |
| Non-Current Investments:  |  |  |  |
| Investment in Treasury Metals Inc. | 5592 | 15400 | 63812 |
| Investment in PC Gold Inc. (Pickle Crow Project) | 21572 | 21570 |  |
| Investment in Big Ridge Gold Corp. (Hope Brook Project) | 2119 | 1491 | - |
| Total Investments | $29467 | $51847 | $82237 |

---

(1) This represents mineral property expenditures per consolidated statements of cash flows.

(2) This is a non-IFRS measurement with no standardized meaning under IFRS and may not be comparable to similar financial measures presented by other issuers. For further information please see the section in this MD&A titled "Non-IFRS Measures".

(3) Per the consolidated statement of cash flows in each corresponding period.

(4) The basic and diluted loss per share calculations result in the same amount due to the anti-dilutive effect of outstanding stock options and warrants.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**Net Loss –** Fluctuations in net loss are typically caused by non-cash items. Removing the impact of these non-cash items shows that the income statement loss from operational activities averages approximately $5.2 million. However, in 2022 there was a non-recurring $1.1 million payment in relation to reimbursement of legal fees and expert costs associated with a settlement agreement in respect of certain litigation in which Clifton Star was a named defendant. The change in net loss from non-cash items for the year ended December 31, 2022 compared to the previous year, included a $13.9 million decrease in loss from a fair value adjustment due to impairment of non-current assets, a $4.9 million decrease in the equity loss of equity accounted investments and $2.6 million decrease in loss on investments held at fair value.

**Cash and Cash Equivalents** – the decrease in 2022 was primarily due to cash used in operational activities and investing activities at the Company's mineral projects, particularly Springpole and the acquisition of 100% of the Duparquet Project. The cash used was partly offset by financing activities related to the 2022 FT Offering in Q3 2022 and cash received from the sale of the NSR royalty on the Goldlund gold property and from the sale of certain marketable securities held by the Company. See the section in this MD&A titled "*Financial Condition, Liquidity and Capital Resources*".

**Total Assets** – increased relative to December 31, 2021, primarily due to the 2022 FT Offering in Q3 2022 and the purchase of the Duparquet Project. The increase in total assets was offset by cash spent on operating expenses in the income statement together with the sale of investments held in current assets of $10.5 million, which decreased in value compared to the prior year when converted to cash and the $9.8 million fair value adjustment due to impairment recorded against the Company's investment in Treasury Metals.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**ONTARIO MINERAL PROPERTY PORTFOLIO LOCATIONS** <sup>(1)</sup>

****

![](firstmining_ex992img2.jpg)

<sup>(1)</sup> Pickle Crow is subject to the Auteco Earn-In Agreement pursuant to which Auteco is the operator of the project and owns 70% of PC Gold Inc., the joint venture company that owns the project (PC Gold Inc. was formerly a wholly-owned subsidiary of First Mining until Auteco completed stage 1 of its earn-in to PC Gold in June 2021).

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**MINERAL PROPERTY PORTFOLIO GOLD RESERVES** <sup>(1)</sup>

****

The Springpole Project is the only mineral project owned by First Mining that has Mineral Reserves attributed to it. The Mineral Reserves for Springpole are based on the conversion of Indicated Mineral Resources within the current pit design. The Mineral Reserves for the Springpole Project are shown below (for further details, see the technical report entitled "NI 43-101 Technical Report and Pre-Feasibility Study on the Springpole Gold Project, Ontario Canada" dated February 26, 2021 (the "**PFS**"), which was prepared for First Mining Consultants Inc. ("**AGP**") in accordance with NI 43-101 and is available under First Mining's SEDAR profile at www.sedar.com):

**Springpole Proven and Probable Reserves** 

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Category** | **Tonnes (Mt)** | **Grade**<br> **Au (g/t)** | **Grade**<br> **Ag (g/t)** | **Contained Metal**<br> **Au (Moz)** | **Contained Metal**<br> **Ag (Moz)** |
| Proven | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Probable | 121.6 | 0.97 | 5.23 | 3.8 | 20.5 |
| **Total** | **121.6** | **0.97** | **5.23** | **3.8** | **20.5** |

---

<u>Notes:</u>

(1) The Mineral Reserve estimate has an effective date of December 30, 2020 and is based on the Mineral Resource estimate that has an effective date of July 30, 2020.

(2) The Mineral Reserve estimate was completed under the supervision of Gordon Zurowski, P.Eng., of AGP, a Qualified Person as defined under NI 43-101.

(3) Mineral Reserves are stated within the final design pit based on a US$878/oz Au pit shell with a US$1,350/oz Au price for revenue.

(4) The equivalent cut-off grade was 0.34 g/t gold ("Au") for all pit phases.

(5) The mining cost averaged $2.75/t mined, processing cost averaged $14.50/t milled, and the G&A cost averaged $1.06/t milled. The process recovery for gold averaged 88% and the silver recovery was 93%.

(6) The exchange rate assumption applied was $1.30 equal to US$1.00.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**MINERAL PROPERTY PORTFOLIO GOLD RESOURCES** <sup>(1)</sup>

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Project** | **Tonnes** | **Gold**<br> **Grade (g/t)** | **Silver**<br> **Grade (g/t)** | **Contained Gold** <br> **Ounces (oz)** | **Contained Silver** <br> **Ounces (oz)** |
| **Measured Resources** | **Measured Resources** | **Measured Resources** | **Measured Resources** | **Measured Resources** | **Measured Resources** |
| Cameron Gold Project<sup>(2)</sup> | 3360000 | 2.75 |  | 297000 |  |
| Duparquet Gold Project<sup>(3)</sup> | 183600 | 1.43 | - | 8500 | - |
| **Indicated Resources**  | **Indicated Resources**  | **Indicated Resources**  | **Indicated Resources**  | **Indicated Resources**  | **Indicated Resources**  |
| Springpole Gold Project<sup>(4)</sup> | 151000000 | 0.94 | 5.00 | 4600000 | 24300000 |
| Hope Brook Gold Project (49%)<sup>(8)</sup> | 7933100 | 2.32 |  | 590940 |  |
| Cameron Gold Project<sup>(5)</sup> | 2170000 | 2.40 |  | 167000 |  |
| Duparquet Gold Project<sup>(3)</sup> | 69022700 | 1.55 |  | 3432100 |  |
| Duquesne Gold Project | 1859200 | 3.33 | - | 199161 | - |
| **Inferred Resources** | **Inferred Resources** | **Inferred Resources** | **Inferred Resources** | **Inferred Resources** | **Inferred Resources** |
| Springpole Gold Project<sup>(4)</sup> | 16000000 | 0.54 | 2.80 | 300000 | 1400000 |
| Hope Brook Gold Project (49%)<sup>(8)</sup> | 1085350 | 3.24 |  | 113190 |  |
| Cameron Gold Project<sup>(6)</sup> | 6535000 | 2.54 |  | 533000 |  |
| Pickle Crow Gold Project (30%) <sup>(7)</sup> | 2835600 | 4.10 |  | 369150 |  |
| Duparquet Gold Project<sup>(3)</sup> | 37371900 | 1.36 |  | 1636000 |  |
| Duquesne Gold Project | 1563100 | 5.58 |  | 280643 |  |
| Pitt Gold Project | 1076000 | 7.42 | - | 257000 | - |
| **Total Measured Resources** | **3543600** | **2.68** | **-** | **305500** | **-** |
| **Total Indicated Resources** | **231985000** | **1.20** | **5.00** | **8989201** | **24300000** |
| **Total Measured and Indicated Resources** | **235528600** | **1.22** | **5.00** | **9294701** | **24300000** |
| **Total Inferred Resources** | **66466950** | **1.62** | **2.80** | **3488983** | **1400000** |

---

(1) The Mineral Resources set out in this table, with the exception of the Hope Brook Gold Project, are based on the technical report for the applicable property, the title and date of which are set out under the applicable property description within the section "Mineral Property Portfolio Review" in this MD&A or in the Company's AIF for the year ended December 31, 2022, which is available under the Company's SEDAR profile at <u>www.sedar.com</u>. The Hope Brook Mineral Resources are based on Big Ridge Gold Corp's news release dated 21 February 2023, which is available on their website at <u>https://bigridgegold.com</u>. An updated Technical Report prepared under NI 43-101 Standards of Disclosure for Mineral Projects will be filed by Big Ridge Gold on SEDAR within 45 days of their 21 February 2023 news release. Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability. The estimate of Mineral Resources may be materially affected by environmental permitting, legal, title, taxation, sociopolitical, marketing or other relevant issues.

(2) Comprised of 2,670,000 tonnes of pit-constrained (0.55 g/t Au cut-off) Measured Mineral Resources at 2.66 g/t Au, and 690,000 tonnes of underground (2.00 g/t Au cut-off) Measured Mineral Resources at 3.09 g/t Au.

(3) The Measured, Indicated and Inferred Mineral Resources for Duparquet shown in the above table represents a 100% ownership interest in the Duparquet Gold Project by First Mining, which comprises the Beattie, Donchester, Dumico and Central Duparquet properties.

(4) Springpole Mineral Resources are inclusive of Mineral Reserves. Open pit Mineral Resources are reported at a cut-off grade of 0.30 g/t Au. Cut-off grades are based on a price of US$1,550/oz Au and $20/oz ()"**Ag** "), and processing recovery of 88% Au and 93% Ag. The estimated Life of Mine ()"**LOM**") strip ratio for the resource estimate is 2.36. Silver Mineral Resources for Springpole are shown in separate columns for Silver Grade (g/t) and Contained Silver Ounces (oz).

(5) Comprised of 820,000 tonnes of pit-constrained (0.55 g/t Au cut-off) Indicated Mineral Resources at 1.74 g/t Au, and 1,350,000 tonnes of underground (2.00 g/t Au cut-off) Indicated Mineral Resources at 2.08 g/t Au.

(6) Comprised of 35,000 tonnes of pit-constrained (0.55 g/t Au cut-off) Inferred Mineral Resources at 2.45 g/t Au, and 6,500,000 tonnes of underground (2.00 g/t Au cut-off) Inferred Mineral Resources at 2.54 g/t Au.

(7) The Pickle Crow Gold Project contains total Inferred Mineral Resources of 9,452,000 tonnes at 4.10 g/t Au, for a total of 1,230,500 ounces Au. This is comprised of 1,887,000 tonnes of pit-constrained (0.50 g/t Au cut-off) Inferred Mineral Resources at 1.30 g/t Au, and 7,565,000 tonnes of underground Inferred Mineral Resources that consist of: (i) a bulk tonnage, long-hole stoping component (2.00 g/t Au cut-off); and (ii) a high-grade cut-and-fill component (2.60 g/t Au cut-off) over a minimum width of 1 m. First Mining owns 30% of the Pickle Crow Gold Project, and 70% is owned by Auteco Minerals Ltd. The Inferred Mineral Resources for Pickle Crow shown in the above table reflects First Mining's percentage ownership interest in the Pickle Crow Gold Project.

(8) First Mining owns 49% of the Hope Brook Gold Project, and 51% is owned by Big Ridge Gold Corp. The Indicated and Inferred Mineral Resources for Hope Brook shown in the above table only reflects First Mining's percentage ownership interest.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**MINERAL PROPERTY PORTFOLIO REVIEW** 

As at December 31, 2022, First Mining had properties located in Canada and the United States. The following section discusses the Company's priority and other significant projects.

As at December 31, 2022 and December 31, 2021, the Company had capitalized the following acquisition, exploration and evaluation costs to its mineral properties:

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **(in $000s)** | **(in $000s)** | **(in $000s)** | **(in $000s)** | **(in $000s)** | **(in $000s)** | **(in $000s)** | **(in $000s)** | **(in $000s)** | **(in $000s)** |
|  | **Springpole** | **Birch-Uchi** | **Cameron** | **Duparquet** | **Duquesne/**<br> **Pitt** | **Hope Brook** | **Pickle Crow** | **Others <sup>(1)</sup>** | **Total** |
| **Balance** <br> **December 31, 2020** | $**87907** | $**-** | $**31875** | $**2670** | $**7229** | $**20612** | $**24986** | $**4150** | $**179429** |
| 2021 acquisition and capitalized net expenditures | 16158 | 1320 | 454 | 428 | 15 | 100 | 3273 |  | 21748 |
| Disposal, impairment or deconsolidation | - | - | - | - | - | (2685) | (28259) | (216) | (31160) |
| **Balance** <br> **December 31, 2021** | $**104065** | $**1320** | $**32329** | $**3098** | $**7244** | $**18027** | $**-** | $**3934** | $**170017** |
| 2022 acquisition and capitalized net expenditures | 21764 | 2551 | 252 | 31039 | 5 |  |  |  | 55611 |
| Environmental remediation |  |  |  | 1500 |  |  |  |  | 1500 |
| Disposal, impairment, reclassification or option payments | - | - | - | - | - | (2175) | - | (3806) | (5981) |
| **Balance** <br> **December 31, 2022** | $**125829** | $**3871** | $**32581** | $**35637** | $**7249** | $**15852** | $**-** | $**128** | $**221147** |

---

(1) Other mineral properties as at December 31, 2022 and December 31, 2021 include: A 1.5% NSR royalty on the Goldlund gold property, which was sold by First Mining on December 19, 2022 (See financial statement note 8(a)); and the Turquoise Canyon property in Nevada (formerly under option with Momentum Minerals Ltd. which was subsequently acquired by IM Exploration Inc. on July 6, 2021 and IM Exploration Inc. was renamed to Westward Gold Inc. on October 7, 2021. Westward Gold Inc. exercised its option to acquire the Turquoise Canyon property on January 30, 2023.)

**<u>CANADIAN GOLD PROJECTS</u>**

***Material Projects***

**Springpole Gold Project, Ontario**

The Springpole Gold Project, as defined in the PFS, covers an area of 41,943 hectares in northwestern Ontario, and consists of 30 patented mining claims, 282 mining claims and thirteen mining leases. Additional mining claims surrounding the Springpole Gold Project were acquired by First Mining in 2021, totaling another 9,209 hectares. The project is located approximately 110 kilometres ("**km**") northeast of the Municipality of Red Lake in northwestern Ontario and is situated within the Birch-Uchi Greenstone Belt. The large, open pittable resource is supported by significant infrastructure, including a 34-person onsite camp, winter road access, a logging road within 18 km of the camp, and nearby power lines within 40 km. The Springpole Gold Project is located within an area that is covered by Treaty Nine and Treaty Three First Nations Agreements. With approximately 4.6 million ounces of gold and 24 million ounces of silver in the Indicated Mineral Resource category, the Springpole Gold Project is one of the largest undeveloped gold projects in Ontario<sup><sup>[1]</sup></sup>.

During the year ended December 31, 2022, the most significant expenditures at the Springpole Gold Project were:

● $7,400,000 in connection with ongoing drilling, exploration and technical studies;

● $7,356,000 in connection with environmental data collection activities, assaying, field work;

__________________________________

<sup>1</sup>Source: S&P Market Intelligence database as of April 16, 2022. Ranking among undeveloped primary gold resources per jurisdiction.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

● $3,406,000 for site employees', contractors' salaries and management salaries allocations;

● $1,821,000 in connection with land tenure and advanced royalty acquisitions;

● <u>$1,781,000</u> in connection with travel, fuel and other expenditures.

 $21,764,000

During the year ended December 31, 2022, and up to the date of this MD&A, the most significant operational developments at the Springpole Gold Project were:

1. <u>2022 Technical Programs</u>

Since completing the PFS for Springpole in January 2021, First Mining has been engaged in a number of significant technical programs to further optimize the development plan for Springpole and to further define the project scope for the Environmental Assessment ("**EA**") / Environmental Impact Statement ("EIS") process and into the Feasibility Study ("**FS**") process. These programs are ongoing and include FS-level metallurgical test work, geotechnical drilling and site investigation to support FS-level preliminary pit slope, dyke and Co-Disposal Facility design work, an update to the Mineral Resource estimate in the PFS incorporating recent drilling results, completion of a power connectivity study, further review of opportunities to reduce the project's greenhouse gas footprint ("**GHG**"), exploring renewable power generation opportunities, additional environmental data collection, predictive environmental effects modelling and studies, and EIS/EA preparation.

**2022 Development Drilling**

A total of 62 drill holes for 5,834 metres were completed in 2022 supporting development advancement for the Springpole Gold Project, including geotechnical, hydrogeological, and geochemical studies. Geotechnical drilling consisted of 34 HQ-sized diamond drill holes totaling 3,756 metres supporting further characterization of the proposed open pit walls, the proposed construction dykes and additional areas of proposed mine infrastructure. A further 10 diamond drill holes totaling 1,612 metres were completed in order to collect sample material for the ongoing metal leaching/ARD studies on the Project. This drilling primarily targeted areas of waste and low grade within the PFS pit for ARD sample collection. Selected core samples from the geotechnical drill program were also utilized for the ARD test work program.

The 2022 hydrogeology drilling formed part of ongoing hydrogeological site investigations required to support the **EA** at Springpole. Drilling totaled 18 diamond drill holes over 406 m and included a program of shallow monitoring well installations which were positioned around proposed mine infrastructure areas and are intended for long-term groundwater data collection.

**Metallurgical Program**

The focus of the FS-level metallurgical program is to confirm metallurgical information and the process design of the PFS, and explore opportunities to enhance metal recoveries and reduce operating and capital costs for Springpole. Initial metallurgical test work was completed at the end of Q1 2022 and based on these results an additional test work program was commenced to confirm the proposed FS process design in Q3 2022.

**GHG Footprint Reduction – Electric Assist Haul Trucks**

Following the completion of the PFS, First Mining completed an analysis of potential GHG emissions from the Springpole Project and determined that opportunities exist to reduce GHG emissions by reducing diesel consumption associated with the haul trucks with the addition of trolley assist in various areas of the mine. Given that the Springpole Project is scoped to be connected to the power grid, First Mining commissioned AGP to study the impact and benefit of a number of electric haul assist technologies. More detailed analysis is warranted and will be carried out in the FS workplan.

**Renewable Power Generation Opportunities**

First Mining commissioned SLR Consulting Inc. ("**SLR**") to complete an initial scoping study of the opportunities to incorporate renewable power generation into the project development plan at Springpole. The Springpole area has the potential for economic wind and solar resources, as well as a significant biomass opportunity which has been previously studied for the region. The SLR study concluded that wind and solar were both viable potential supplemental power sources for the Springpole Project that warrant further study. In furtherance of this, First Mining continued site-specific data collection for wind resources throughout H2 2022 and into 2023, and aims to discuss opportunities with the local communities to better understand avenues for partnership in a potential renewable power development.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**230 kV Transmission Line Design**

In 2022, First Mining advanced a feasibility-level design of an 89 km, three-phase, 230 kV overhead transmission line from a tap location on the existing Wataynikaneyap Power GP ("**Watay**") W51W transmission line to supply electrical power to the mine site. Ontario's Independent Electricity System Operator ("**IESO**") continued work on a System Impact Assessment ("**SIA**") on the Project, which is required for the proposed new transmission line. First Mining engaged Watay to perform a Short-Circuit Study to assist the IESO in its performance of the SIA, a Protection Impact Assessment ("**PIA**"), and coordinate with Hydro One Networks Inc. (HONI) to ensure that the Short-Circuit Study and the PIA reflect impacts to HONI equipment and protection settings, as required. First Mining will continue to advance the Feasibility-level design for the 230kV transmission line in Q1 2023, once IESO issue the SIA.

**Mine Access Road Design**

First Mining has completed a preliminary design and alignment for a mine access road which would commence at the end of the Wenesaga Logging Road, approximately 18 km from the current camp location at Springpole.

**Further CDF Optimization** 

In Q3 2022, First Mining completed further trade-off studies on the Co-Disposal Facility, which highlighted the need for additional optimization on the PFS design.

**Environmental Data Collection**

The 2022 environmental field work activities involved a comprehensive program to supplement the baseline data that had been collected over several previous years. The studies covered a broad range of disciplines across the biological, physical and human environments including air quality, noise, surface water, groundwater, geochemistry, aquatic biology, terrestrial and vegetation and wildlife. Two air quality monitoring stations near the Springpole Project site were operated throughout 2022 to gather continuous samples.

Surface water studies included monthly surface water quality sampling at 35 locations as well as flow measurements and lake level measurements at six locations. Hydrogeological testing was conducted to improve the understanding of groundwater movement in the area and groundwater quality samples were collected at 33 monitoring wells. The geochemical characterization program included static and kinetic testing of mine rock and tailings as well as static testing of aggregate and overburden. An aerial survey was undertaken early in the year to study Boreal Caribou and other ungulates and furbearers.

Other key wildlife and habitat studies included bird and bat surveys as well as vegetation community and wetland mapping. Extensive aquatic studies were undertaken including fish community and habitat assessments, fish tissue sampling, eDNA studies, as well as plankton and benthic invertebrate studies. The information collected will inform the EA and First Mining will continue to collect data on the existing environment in 2023 to support future permitting.

**Environmental Impact Statement/Environmental Assessment (EIS/EA) Preparation**

Following a successful environmental field season and the approval of the Provincial EA Terms of Reference on November 8, 2021, WSP (previously Wood plc), on behalf of First Mining, has undertaken further studies to inform the EIS/EA documentation covering key areas of the environment at Springpole, including geochemistry, groundwater quantity and quality, surface water quality, hydrology, air quality, noise and vibration, and terrestrial components. The draft EIS/EA also includes economic modelling and highlights the economic and social benefits of the Springpole Project. The technical work has been documented and presented in draft EIS/EA reports which were published in June 2022. Consultation and engagement on the draft EIS/EA with Indigenous communities, regulators and stakeholders will continue into 2023 in order to shape the final EIS/EA submission.

Environmental data collection will continue through 2023 to continue to supplement the existing dataset to support the final EA and future permitting. All EA-related materials are publicly available through First Mining's website at <u>www.firstmininggold.com</u>.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**Key Catalysts for Springpole Project Development in 2023**

First Mining is anticipating a number of important project advancements in 2023, including:

● Continuation of the FS work, including process design, open pit mine plan optimization, and preliminary pit slope guidelines for the mine design

● Final results for other process and tailings facility optimization trade-off studies to be included in the FS

● Additional targeted geotechnical work for design of open pit and Co-Disposal Facility ()"**CDF** ")

● Commencement of other FS engineering activities such as dyke design, CDF design, road access and transmission line design, and other site infrastructure requirements

● Conduct a high-level assessment of renewable energy development opportunities in and around the Project

● Completion of the IESO SIA, Watay's Customer Impact Assessment ()"**CIA** "), and continuation of design work on the 230 kV transmission line

● Ongoing engagement and subsequent updates to the environmental effects studies and EIS/EA report

2. <u>Completion of Pre-Feasibility Study in 2021</u>

On January 20, 2021, First Mining announced the results of a positive PFS for the Springpole Gold Project. The PFS evaluates recovery of gold and silver from a 30,000 tonne-per-day ("**tpd**") open pit operation at Springpole, with a process plant that will include crushing, grinding, and flotation, with fine grinding of the flotation concentrate and agitated leaching of both the flotation concentrate and the flotation tails followed by a carbon-in-pulp recovery process to produce doré bars. For full details regarding the PFS for the Springpole Gold Project, see the technical report, entitled "NI 43-101 Technical Report and Pre-Feasibility Study on the Springpole Gold Project, Ontario Canada" dated February 26, 2021, which was prepared for First Mining by AGP in accordance with NI 43-101 and is available under First Mining's SEDAR profile at www.sedar.com.

**PFS Highlights**

● US$1.5 billion pre-tax NPV<sub>5%</sub> at US$1,600 per ounce /(" **oz**") Au, increasing to US$1.9 billion at US$1,800/oz Au

● US$995 million post-tax NPV<sub>5%</sub> at US$1,600/oz Au, increasing to US$1.3 billion at US$1,800/oz Au

● 36.4% pre-tax internal rate of return ("IRR"); 29.4% after-tax IRR at US$1,600/oz Au

● Life of mine ()"**LOM**") of 11.3 years, with primary mining and processing during the first 9 years and processing lower-grade stockpiles for the balance of the mine life

● After-tax payback of 2.4 years

● Declaration of Mineral Reserves: Proven and Probable Reserves of 3.8 Moz Au, 20.5 Moz Ag (121.6 Mt at 0.97 g/t Au, 5.23 g/t Ag)

● Initial capital costs estimated at US$718 million, sustaining capital costs estimated at US$55 million, plus US$29 million in closure costs

● Average annual payable gold production of 335 koz (Years 1 to 9); 287 koz (LOM)

● Total cash costs of US$558/oz (Years 1 to 9); and US$618/oz (LOM)<sup>(1)</sup>

● All-in sustaining costs ()"**AISC**") of US$577/oz (Years 1 to 9), and AISC US$645 (LOM)<sup>(2)</sup>

*Note: Base case parameters assume a gold price of US$1,600/oz and a silver price of US$20/oz, and an exchange rate ($ to US$) of 0.75. All currencies in the PFS are reported in U.S. dollars unless otherwise specified. NPV calculated as of the commencement of construction and excludes all pre-construction costs.*

*(1) Total cash costs consist of mining costs, processing costs, mine-level general and administrative ("G&A") costs, treatment and refining charges and royalties.*

*(2) AISC consists of total cash costs plus sustaining and closure costs.* 

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**Economic Sensitivities**

The economics and cash flows of the Springpole Gold Project are highly sensitive to changes to the gold price.

**Springpole Economic Sensitivity to Gold Price** (base case in bold)

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Gold Price (US$/oz)** | **$1400** | **$1600** | **$1800** | **$2000** |
| Pre-Tax NPV<sub>5%</sub> | US$1.04 billion | **US$1.48 billion** | US$1.92 billion | US$2.36 billion |
| Pre-Tax IRR | 28.9% | **36.4%** | 43.2% | 49.5% |
| After-Tax NPV<sub>5%</sub> | US$690 million | **US$995 million** | $1.30 billion | $1.60 billion |
| After-Tax IRR | 23.3% | **29.4%** | 35.0% | 40.1% |

---

**Springpole Economic Sensitivity to Initial Capital Costs** (base case in bold)

---

| | | | |
|:---|:---|:---|:---|
| **Initial Capital Costs** | **+10%** | **US$718 million** | **-10%** |
| Pre-Tax NPV<sub>5%</sub> | US$1.34 billion | **US$1.48 billion** | US$1.61 billion |
| Pre-Tax IRR | 30.1% | **36.4%** | 44.1% |
| After-Tax NPV<sub>5%</sub> | US$875 million | **US$995 million** | US$1,102 million |
| After-Tax IRR | 23.8% | **29.4%** | 36.3% |

---

**Springpole Economic Sensitivity to Operating Costs** (base case in bold)

---

| | | | |
|:---|:---|:---|:---|
| **Operating Costs** | **+10%** | **US$2.21 billion** | **-10%** |
| Pre-Tax NPV<sub>5%</sub> | US$1.33 billion | **US$1.48 billion** | US$1.63 billion |
| Pre-Tax IRR | 34.1% | **36.4%** | 38.6% |
| After-Tax NPV<sub>5%</sub> | US$890 million | **US$995 million** | US$1,098 million |
| After-Tax IRR | 27.6% | **29.4%** | 31.3% |

---

The Mineral Resources defined in the PFS do not reflect the significant opportunities that are available for resource expansion or discovery of additional ore bodies in the Springpole district, and First Mining believes that the Springpole Gold Project has several avenues for resource expansion, both within the existing property footprint and regionally in the under-explored Birch-Uchi Greenstone belt. Readers are cautioned that Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

3. <u>Silver Stream transaction with First Majestic Silver Corp.</u>

On June 10, 2020, First Mining entered into a Silver Purchase Agreement with First Majestic pursuant to which First Majestic Silver Corp ("**First Majestic**") agreed to pay First Mining total consideration of US$22.5 million (the "**Advance Payment**"), in three tranches, for the right to purchase 50% of the payable silver produced from the Springpole Gold Project for the life of the project (the "**Silver Stream**"). The transaction closed on July 2, 2020, and under the terms of the transaction:

● US$10 million was paid by First Majestic on closing the transaction, with US$2.5 million paid in cash and the remaining US$7.5 million satisfied by the issuance to First Mining of 805,698 common shares of First Majestic (the "**First Majestic Shares**") based on the 20-day volume-weighted average trading price ()"**VWAP**") of the First Majestic Shares on the TSX at the time;

● US$7.5 million was paid by First Majestic upon First Mining publicly announcing the completion of a positive PFS for the Springpole Gold Project, with US$3.75 million paid in cash and the remaining US$3.75 million satisfied by the issuance to First Mining of 287,300 First Majestic Shares (based on the 20-day VWAP of the First Majestic Shares on the TSX at the time); and

● US$5 million is payable by First Majestic upon First Mining receiving approval of a federal or provincial EA for the Springpole Gold Project, with US$2.5 million payable in cash and US$2.5 million payable in First Majestic Shares (based on 20-day VWAP of the First Majestic Shares on the TSX at the time).

In addition, upon closing the transaction on July 2, 2020, First Mining issued 30 million common share purchase warrants ("**First Mining Warrants**") to First Majestic pursuant to the terms of the Silver Purchase Agreement. Each First Mining Warrant entitles First Majestic to purchase one First Mining Share at an exercise price of $0.40 for a period of five years. As a result of the distribution of shares and warrants of Treasury Metals that was completed on July 15, 2021, pursuant to the adjustment provisions of the First Mining Warrants, the exercise price of these warrants was reduced from $0.40 to $0.37, and the number of these warrants was increased from 30.0 million to 32.1 million.

In the event the Company were to default, First Majestic may terminate the Silver Purchase Agreement and the Advance Payment received by First Mining at that time would become repayable. The Silver Stream has an initial term of 40 years from July 2, 2020. The term is automatically extended by successive 10-year periods as long as the life of mine continues for the Springpole Gold Project.

Upon receipt of its share of silver production, First Majestic will make cash payments to First Mining for each ounce of silver paid to First Majestic under the Silver Purchase Agreement equal to 33% of the lesser of the average spot price of silver for the applicable calendar quarter, and the spot price of silver at the time of delivery (the "**Silver Cash Price**"), subject to a price cap of US$7.50 per ounce of silver (the "**Price Cap**"). The Price Cap is subject to annual inflation escalation of 2%, commencing at the start of the third year of production. First Mining has the right to repurchase 50% of the Silver Stream for US$22.5 million at any time prior to the commencement of production at Springpole. The proceeds received by First Mining are being used to advance the Springpole Gold Project through the FS process and will also be used to advance the project through the federal and provincial EA processes.

**Birch-Uchi Gold Projects, Ontario (Regional land acquisitions)**

With its Birch Uchi Gold Projects, First Mining consolidated regional scale exploration opportunities surrounding its Springpole Project. A consolidated land tenure, located in the Birch Uchi Greenstone Belt, presents an exciting opportunity for discovery in an area which is historically underexplored and has only seen a fraction of the exploration work that has been done in the neighbouring Red Lake and Pickle Lake greenstone belts. The region has seen increased exploration activity to the north and west of Springpole over the last two years. Historically, the Birch Uchi Greenstone Belt has hosted several past-producing gold mines including: Argosy – which produced approximately 100,000 oz. at 11.4 g/t Au; Uchi – with a reported 114,000 oz. at 4.7 g/t Au; and a number of smaller gold and base metal mines including the Jackson, Manion, Hudson-Patricia, Bathurst and Sol d'Or mines, which produced gold in the 1930s at reported grades of 17.5 g/t Au.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

First Mining significantly increased its mineral tenure in the region in 2021 through acquisitions and option agreements (see Figure 2), resulting in a current total controlled area of approximately 74,000 Ha (including the Springpole Project) in the district. Prospective targets in this new mineral tenure include the past-producing high-grade Sol d'Or mine; the Swain property, the Vixen North property - located nearby the past-producing Argosy mine - and the Birch property, which includes the HGI prospect where historical drilling has intersected gold grades up to 245 g/t.

![](firstmining_ex992img3.jpg)

In 2021, First Mining completed a regional data compilation and targeting exercise on the Birch-Uchi Greenstone Belt, and conducted district-scale gold occurrence reconnaissance on First Mining's claims. In total, 45 gold occurrences were visited, and 191 rock samples were analyzed for multi-element geochemistry.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

![](firstmining_ex992img4.jpg)

During the summer of 2022, First Mining followed up and expanded on its 2021 targeting work with a comprehensive field program consisting of soil geochemistry, mapping, prospecting and drilling campaigns. The soil geochemistry campaign was focused on prospective areas including four of the option properties to advance regional scale vectoring. A total of 705 soil samples were collected during this campaign. Mapping & prospecting campaigns were carried out on the Birch, Swain, Vixen, Stargazer, Horseshoe East and Satterly properties, where more than 500 grab samples were collected and submitted for gold and multi-element analysis. The rock sampling programs returned significant gold results across multiple centres of mineralization over the project area and are highlighted by higher grade samples including 42.4 g/t Au at the Sirius target, 34.7 g/t Au at the historic Sol D'Or Mine, 15.4 g/t Au at the Bronco target, and 15.3 g/t Au at the Canamer target. Additional significant and anomalous supporting gold results from rock samples continue to build up a sizeable district dataset for targeting of mineralization hot spots and favourably endowed gold trends.

A targeted exploration drilling campaign was also carried out on the Swain property, which consisted of a five-hole drill program totaling 1,560 m. Initial results from this program are indicative of favourable host lithologies over zones of meaningful width, with increased mineralization around key structures.

In October 2022, the Company completed a 3,843 line kilometre geophysical airborne survey over portions of the Birch-Uchi land tenure, benchmarking and vectoring regional-scale magnetic and electromagnetic features for supporting exploration targeting through the use of integrated datasets for 2023 and beyond. The geophysical survey provides a core supplement to the existing geophysical coverage in the region and was successfully supported by industry-leading service providers and partners in SkyTEM and Mira Geoscience.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**Summary of Birch-Uchi Option Agreements**

On February 18, 2021, the Company entered into a three-year option agreement pursuant to which First Mining may earn a 100% interest in the Swain Post property owned by Exiro Minerals Corp. ("**Exiro**") located in northwestern Ontario by making future cash and share payments of approximately $250,000 to Exiro during the term of the option, and by completing all assessment work requirements on the property during the option term. The Swain Post property comprises 237 single cell mining claims covering nearly 5,000 Ha. It is located approximately 5 km west of First Mining's western-most property boundary at Springpole.

On April 29, 2021, the Company and its wholly-owned subsidiary, Gold Canyon, entered into an earn-in agreement with Whitefish Exploration Inc. ("**Whitefish**") which gives First Mining the right to earn, through its wholly owned subsidiary Gold Canyon Resources Inc., an initial 70% interest in Whitefish's Swain Lake property ("Swain Property") by making cash payments totaling $200,000 and share payments totaling $425,000, and by incurring at least $500,000 worth of expenditures on the Swain property during the first three years of the earn-in term. Upon completing the first stage of the earn-in, First Mining will hold, through Gold Canyon, a 70% interest in the Swain property and will have an additional period of two years within which to acquire the remaining 30% of the property by paying $1 million in cash to Whitefish and by issuing $1 million worth of First Mining Shares to Whitefish.

If the second stage of the earn-in is not completed, Whitefish and Gold Canyon will enter into a joint venture agreement with respect to the Swain property.

The Swain property comprises 82 single cell mining claims covering 1,640 Ha. It is located approximately 2 km from First Mining's western-most property boundary at Springpole and immediately to the east of the Swain Post property.

On September 7, 2021, the Company and its wholly-owned subsidiary, Gold Canyon, entered into an earn-in agreement with ALX Resources Inc. ("**ALX**") which gives First Mining the right to earn, through Gold Canyon, an initial 70% interest in ALX's Vixen North, Vixen South and Vixen West properties in northwestern Ontario (collectively, the "**Vixen Properties**") by making cash payments totaling $550,000 and share payments totaling $400,000, and by incurring at least $500,000 worth of expenditures on the Vixen Properties during the first three years of the earn-in term. Upon completing the first stage of the earn-in, First Mining will hold, through Gold Canyon, a 70% interest in the Vixen Properties and will have an additional period of two years within which to acquire the remaining 30% of the properties by paying $500,000 in cash to ALX and by issuing $500,000 worth of First Mining Shares to ALX. If the second stage of the earn-in is not completed, ALX and Gold Canyon will enter into a joint venture agreement with respect to the Vixen Properties.

On October 4, 2021, the Company announced it had entered into an earn-in agreement with Pelangio Exploration Inc. ("**Pelangio**") which gives First Mining the right to earn, through Gold Canyon, up to an 80% interest in Pelangio's Birch Lake and Birch Lake West properties (collectively, the "**Birch Properties**") over the course of two stages and a period of six years. Initially, First Mining (through Gold Canyon), may earn a 51% interest in the Birch Properties by making cash payments totaling $350,000, issuing a total of 1,300,000 First Mining Shares and by incurring at least $1,750,000 worth of expenditures on the Birch Properties during the first four years of the earn-in term. Upon completing the first stage of the earn-in, First Mining will have an additional period of two years within which to acquire a further 29% interest in the Birch Properties by paying $400,000 to Pelangio in cash or First Mining Shares (at First Mining's sole discretion) and by incurring an additional $1,750,000 worth of expenditures on the Birch Properties. Upon completing the second earn-in stage, First Mining will hold a 80% interest in the Birch Properties, and Gold Canyon and Pelangio will enter into a joint venture agreement with respect to the properties (if First Mining notifies Pelangio at any time after exercising the first earn-in that it will not complete the second earn-in stage, the joint venture will be formed as of the date of such notice, and First Mining will hold, through Gold Canyon, a 51% interest in the Birch Properties). Updates were made to the terms of the earn-in agreement in an amendment agreement dated September 22, 2022, in which a deadline for First Mining to incur and fund expenditures of not less than $250,000 by the first anniversary of the closing date of the earn-in agreement was extended to the second anniversary of the closing date.

The Birch Properties include the HGI Prospect, which is located to the northeast of First Mining's Springpole Gold Project. The Birch Properties cover approximately 3,700 Ha.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

On October 29, 2021, the Company entered into a three year earn-in agreement with a private individual pursuant to which First Mining may earn a 100% interest in the Stargazer and Horseshoe East properties in northwestern Ontario by making cash and share payments of $250,000 to the private individual during the term of the option, and by incurring at least $350,000 worth of expenditures on the Stargazer and Horseshoe East Properties during the three-year option term.

During the year ended December 31, 2022, the most significant expenditures at the Birch-Uchi Gold Projects were:

● $674,000 in connection with property acquisition costs;

● $652,000 for site employees' salaries and management salary allocations;

● $788,000 in connection with drilling, exploration and technical consultation; and

● <u>$437,000</u> for field work, travel, assaying and environmental expenditures.

 **$2,551,000** 

**Future Work Plans**

Following on from the 2022 exploration campaign, the Swain – Sol D'Or target diamond drilling and additional district grab sample results are under review and interpretation. The First Mining exploration team continues to integrate the data for consolidation, analysis and target evolvement.

Geophysical survey data from SkyTEM was delivered in December 2022, whereby First Mining has further engaged with technical specialists at Mira Geosciences to develop advanced geophysical interpretation, modelling and 3D inversion support products in Q1 2023. The aim is to develop a modern, integrated approach of data processing and consolidation by leveraging all datasets for exploration target assessment and building out a district-scale geological model with a focused pipeline of targets that vary from grassroots to drill-ready discovery level.

Early results have already highlighted that the 2023 field season will build out, infill and follow-up on highlighted anomalies from the 2022 field campaign, advancing the favourable geoscience metrics and extent of mineral showings. Exploration is also focusing on the development of priority drill-ready targets on the Satterly, Swain-Sol D'Or, Horseshoe, Springpole and Birch properties.

**Duparquet Gold Project, Quebec**

Through the Company's acquisition of Clifton Star in 2016, the Company acquired a 10% equity interest in the shares of each of Beattie, 2699681 Canada Ltd., and 2588111 Manitoba Ltd., three private companies which directly or indirectly own various mining concessions and surface rights that comprise the Duparquet Gold Project located on the Destor-Porcupine Fault in Québec. in January 2017, the Company also acquired a 100% interest in the 16 claims covering 339 ha which comprised the adjoining Central Duparquet Property. Infrastructure includes site roads, access to electrical power, historical tailings area and ancillary site buildings.

On February 8, 2022, the Company announced that it had acquired, from two individuals, an aggregate of 286,904 common shares of Beattie, a private company that owns the mineral rights to mining claims that make up the former Beattie mining concession that form a large part of the Duparquet Gold Project. The per share consideration paid under the transaction was $4.44 cash per Beattie share and 26.62 First Mining Shares per Beattie share for a total consideration of $1,272,824 in cash and 7,636,944 First Mining Shares. Together with the 187,839 common shares of Beattie already owned by the Company (through Clifton Star), the Company increased its ownership to 474,743 shares of Beattie, thereby increasing its percentage ownership of the issued and outstanding common shares of Beattie from 10% to 25.3%.

On September 15, 2022, the Company announced that it had completed the acquisition of all the issued and outstanding common shares of Beattie that were not already owned by First Mining. In addition, First Mining also concurrently completed the acquisitions of 2699681 Canada Ltd. and 2588111 Manitoba Ltd. (the "**Concurrent Transactions**"). As a result, First Mining now owns 100% of the Duparquet Gold Project.

The total consideration in connection with the acquisition of Beattie and the Concurrent Transactions was $8,727,177 in cash and the issuance of 71,532,516 First Mining Shares for a total transaction value of approximately $24 million based on the 20-day VWAP of First Mining Shares as of the last trading day prior to the Company's initial announcement regarding these transactions on July 18, 2022.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

On January 30, 2023, First Mining, through its wholly-owned subsidiary Duparquet Gold Mines Inc. (formerly, Clifton Star), entered into an agreement with IAMGOLD Corporation, to acquire its Porcupine East Property located adjacent to the Company's Duparquet property and connecting the land package to its Pitt and Duquesne properties to the east for total consideration of:

· 2.5 million First Mining shares;

· The granting of a 1.5% NSR royalty on the Porcupine East Property;

· A future contingent payment of $500,000, in cash or First Mining Shares, on the declaration of a minimum of 350,000 oz gold resource on the Porcupine East Property; and

· A future contingent payment of $1,000,000, in cash or First Mining Shares, to be paid within 12 months of commercial production being declared at the Duparquet Gold Project, as long as any major surface infrastructure related to the Duparquet Gold Project has been constructed on the Porcupine East Property.

![](firstmining_ex992img5.jpg)

Map showing First Mining's mineral tenure in Quebec, including the Porcupine East Property acquired from IAMGOLD in January 2023 (shown in blue).

**Property Description**

The Duparquet Gold Project consists of four contiguous mineral exploration properties: Beattie, Donchester, Central Duparquet, Dumico and the tailings from the former Beattie mine. The Project is located in the Abitibi region of the Province of Quebec, approximately 50 km north of the city of Rouyn-Noranda.

The Duparquet Gold Project site has infrastructure which includes paved, provincial highways from Rouyn-Noranda to the south and LaSarre to the north, both mining communities that can provide mining infrastructure and skilled labour to develop a mine. The Project site is also proximal to Quebec's hydroelectric power grid.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

Previously, the property was comprised of two separate mining concessions (Beattie and Donchester mines), but in 2021 the mining concessions reverted back to mining claims, and the current property is comprised of fifty map-designated claims covering an area of 1,079 ha. The property covers a strike length of 8 km in an E-W direction.

![](firstmining_ex992img6.jpg)

Map of the Duparquet Property showing the subdivisions of the Beattie, Donchester, Central Duparquet and Dumico claim blocks

**Historical Work**

Gold was initially discovered in the Duparquet Township in 1910 by John Beattie. The Beattie and adjoining Donchester mines were in production from 1933 to 1956, producing upwards of 1.3 million ounces of gold. In the mid-1930s, Beattie Gold Mines was the largest gold producer in Quebec. From the 1980s to 2007, very limited exploration was carried out. Clifton Star (now Duparquet Gold Mines Inc.) had an option on the property between 2009 and 2014. During this time, Clifton Star and their partners completed more than 260,000 m of surface diamond drilling and channel sampling. Clifton Star also completed an environmental baseline study, environmental assessment study and numerous metallurgical studies. Mineral resource estimates were also carried out that were included in a Preliminary Economic Assessment (PEA) and a Prefeasibility Study (PFS). The Clifton Star option was terminated in 2014 and the property was returned to the previous owners, with Clifton Star retaining a 10% interest in the companies that held the Duparquet property.

Since the effective date of the previous Mineral Resource estimate (InnovExplo, Poirier et al., 2014), Clifton Star and the previous owners (Beattie and 2588111 Manitoba Ltd.) completed an additional 57 surface drill holes totalling 9,548 m, that were not included in the 2014 Mineral Resource estimate for the Duparquet Gold Project.

Bench-scale and pilot plant metallurgical test work programs have also been completed on the Project; preliminary metallurgical test work was undertaken in 2012 to support a PEA, and in 2013, further flotation, pressure oxidation, biological oxidation (BIOX), cyanidation, rheology and environmental test work was completed, including a pilot plant for a PFS. Outotec was also mandated in 2013 to carry out filtration test work. The overall gold results from flotation concentrate, pressure oxidation (POX) and CIL circuit as well as flotation tail cyanidation for the ore resulted in an overall recovery of gold ranging from 91.9% to 95.4%. A preliminary pilot test program investigated pressure oxidation and hot curing processing of a Duparquet flotation concentrate to render precious metals extractable by cyanidation. The recovery of gold from the pilot plant hot cure discharge ranged from 94.7% to 96.5%. Bench-scale test work was also performed on two samples of existing tailings on the Project. The test work for the flotation-POX/CIL flowsheet resulted in overall gold recoveries from the tailings ranging from 83.5% to 93.3%.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**Recent Developments**

On September 12, 2022, the Company released an updated Mineral Resource estimate for the Duparquet Gold Project, prepared for First Mining by InnovExplo Inc. in accordance with NI 43-101. The accompanying technical report for the updated Mineral Resource estimate titled "NI 43-101 Technical Report and Mineral Resource Estimate Update for the Duparquet Project, Quebec, Canada," dated October 6, 2022, with an effective date of September 12, 2022, can be found on the Company's website at <u>www.firstmininggold.com</u> and on SEDAR under the Company's issuer profile at <u>www.sedar.com</u>.

The updated Mineral Resource estimate considers additional drilling (57 holes; 9,549 m) completed since the previous resource estimate, and utilizes a deeper optimized pit shell and updated economic parameters. The database for the Mineral Resource estimate for Duparquet contains 904 drill holes and 892 channel samples in outcrops. It contains 173,831 sampled intervals taken from 270,119 m of drilled core and 2,371 analyses from 1,827 m of channels. Significant assay results added to this updated Mineral Resource estimate include 5.65 g/t Au over 34.0 m (BD13-22) on Beattie and 5.58 g/t Au over 5.0 m (D13-18) on Donchester.

The 2022 Mineral Resource estimate for Duparquet comprises 3.4 Moz of gold in the Measured and Indicated category, plus an additional 1.6 Moz of gold in the Inferred category, and is presented in full in Table 1 below. This updated Mineral Resource estimate represents a 10.5% increase in the Measured and Indicated category and a 13.4% increase in the Inferred category from the previous Mineral Resource estimate completed in 2014. The resource area has an E-W strike length of 4.5 km, a width of approximately 1 km, and a vertical extent of 1,050 m below surface.

**Table 1: Duparquet Gold Project – 2022 Mineral Resource Estimate**

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| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Area** <br> **(mining method)** | **Cut-off** <br> **(g/t)** | **Measured resource** | **Measured resource** | **Measured resource** | **Indicated resource** | **Indicated resource** | **Indicated resource** | **Inferred resource** | **Inferred resource** | **Inferred resource** |
| **Area** <br> **(mining method)** | **Cut-off** <br> **(g/t)** | **Tonnage (t)** | **Au** <br> **(g/t)** | **Ounces** | **Tonnage (t)** | **Au** <br> **(g/t)** | **Ounces** | **Tonnage (t)** | **Au** <br> **(g/t)** | **Ounces** |
| Open Pit | 0.40 | 163700 | 1.37 | 7200 | 59410600 | 1.52 | 2909600 | 28333000 | 1.07 | 970400 |
| UG Mining | 1.50 | - | - | - | 5506900 | 2.26 | 399300 | 9038900 | 2.29 | 665600 |
| Tailings | 0.40 | 19900 | 2.03 | 1300 | 4105200 | 0.93 | 123200 | - | - | - |
| **Total** |  | **183600** | **1.43** | **8500** | **69022700** | **1.55** | **3432100** | **37371900** | **1.36** | **1636000** |

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Notes to accompany the Mineral Resource Estimate:

1. The independent and qualified persons for the Mineral Resource estimate, as defined by NI 43 101, are Marina Lund, P.Geo., Carl Pelletier, P.Geo. and Simon Boudreau, P.Eng. from InnovExplo Inc., and Guy Comeau, P.Eng. from Soutex Inc.. The effective date of the estimate is September 12, 2022.

2. Mineral Resources are not Mineral Reserves, as they do not have demonstrated economic viability. There is currently insufficient data to define these Inferred Mineral Resources as Indicated or Measured Mineral Resources and it is uncertain if further exploration will result in upgrading them to an Indicated or Measured Mineral Resource category. The Mineral Resource estimate follows current CIM Definition Standards.

3. The results are presented in situ and undiluted and have reasonable prospects of economic viability.

4. In-pit and underground estimates encompass sixty (60) mineralized domains and one dilution envelope using the grade of the adjacent material when assayed or a value of zero when not assayed; The tailings estimate encompass four (4) zones.

5. In-pit and underground: High-grade capping of 25 g/t Au; Tailings: High-grade capping of 13.0 g/t Au for Zone 1, 3.5 g/t Au for Zone 2, 1.7 g/t Au for Zone 3 and 2.2 g/t Au for Zone 4. High-grade capping supported by statistical analysis was done on raw assay data before compositing.

6. In-pit and underground: The estimate used a sub-block model in GEOVIA SURPAC 2021 with a unit block size of 5m x 5m x 5m and a minimum block size of 1.25m x 1.25m x1.25m. Grade interpolation was obtained by ID2 using hard boundaries. Tailings: The estimate used a block model in GEOVIA GEMS with a block size of 5m x 5m x 1m. Grade interpolation was obtained by ID2 using hard boundaries.

7. In-pit and underground: A density value of 2.73 g/cm3 was used for the mineralized domains and the envelope. A density value of 2.00 g/cm3 was used for the overburden. A density value of 1.00 g/cm3 was used for the excavation solids (drifts and stopes) assumed to be filled with water. Tailings: A fixed density of 1.45 g/cm3 was used in zones and waste.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

8. In-pit and underground: The Mineral Resource estimate is classified as Measured, Indicated and Inferred. The Measured category is defined by blocks having a volume of at least 25% within an envelope built at a distance of 10 m around existing channel samples. The Indicated category is defined by blocks meeting at least one (1) of the following conditions: Blocks falling within a 15-m buffer surrounding existing stopes and/or blocks for which the average distance to composites is less than 45 m. A clipping polygon was generated to constrain Indicated Mineral Resources for each of the sixty (60) mineralized domains. Only the blocks for which reasonable geological and grade continuity have been demonstrated were selected. All remaining interpolated blocks were classified as Inferred Mineral Resources. Blocks interpolated in the envelope were all classified as Inferred Mineral Resources. Tailings: The Measured and Indicated categories were defined based on the drill hole spacing (Measured: Zones 1 and 2 = 30m x 30m grid; Indicated: Zone 3 = 100m x 100m grid and Zone 4 = 200m x 200m grid).

9. In-pit and underground: The Mineral Resource estimate is locally pit-constrained with a bedrock slope angle of 50° and an overburden slope angle of 30°. The out-pit Mineral Resource met the reasonable prospect for eventual economic extraction by having constraining volumes applied to any blocks (potential underground extraction scenario) using DSO. It is reported at a rounded cut-off grade of 0.4 g/t Au (in-pit and tailings) and 1.5 g/t Au (UG). The cut-off grades were calculated using the following parameters: mining cost = CA$70.00 (UG); processing cost = CA$11.9 to 17.0; G&A = CA$8.75; refining and selling costs = CA$5.00; gold price = US$1,650/oz; USD:CAD exchange rate = 1.31; and mill recovery = 93.9%. The cut-off grades should be re-evaluated in light of future prevailing market conditions (metal prices, exchange rates, mining costs etc.).

10. The number of metric tons and ounces was rounded to the nearest hundred, following the recommendations in NI 43 101. Any discrepancies in the totals are due to rounding.

11. The authors are not aware of any known environmental, permitting, legal, title-related, taxation, socio-political, or marketing issues, or any other relevant issue not reported in the Technical Report, that could materially affect the Mineral Resource estimate.

During the year ended December 31, 2022, the most significant expenditures at the Duparquet Gold Project were:

● $30,489,000 in connection with property acquisition costs;

● $142,000 in connection with exploration and technical consulting;

● $276,000 for employees' salaries and management salary allocations;

● <u>$119,000</u> in connection with ongoing environmental permitting and community consultations; and

 $31,026,000

**Future Work Plans**

First Mining, through its wholly-owned subsidiary Duparquet Gold Mines Inc. (formerly, Clifton Star), plans to advance the Duparquet Project commencing in 2023 with environmental data collection to update the environmental baseline data previously collected by Clifton Star in 2012 and 2013 to support the regulatory approval process for the Project. Future planned work by First Mining will also include engineering trade-off studies, diamond drilling, and an updated economic study (PEA) to build on the solid technical foundation established by the Project in the Pre-Feasibility Study completed by InnovoExplo for Clifton Star in 2014 *(entitled 'Technical Report and Prefeasibility Study for the Duparquet Project; effective date 26 March 2014).* 

First Mining has initiated discussions with the relevant Quebec ministries to address environmental and legacy issues as part of the redevelopment of the property. On February 15, 2023, the Company's wholly-owned subsidiary received a Notice of Non-Compliance (the "Non-Compliance Notice") from the Ministry of the Environment, the Fight Against Climate Change, Wildlife and Parks ("MELCCFP") in Quebec regarding certain historic hazardous material on the Duparquet property. Since acquiring the Duparquet Project, the Company has been proactively working with MELCCFP in respect of this historical environmental issue, and it will be filing an initial management plan with MELCCFP by March 31, 2023. The Company is committed to working in partnership with the municipality of Duparquet, citizens and Indigenous communities. In addition, First Mining intends to commence a robust regional exploration data compilation, integration and targeting exercise to develop a path that supports potential resource expansion, resource classification upgrades, and exploration discovery.

**Cameron Gold Project, Ontario**

The Cameron Gold Project consists of a district-scale, 528 square kilometre (53,000 Ha) land package in northern Ontario, encompassing the Cameron Gold Deposit, the West Cedartree deposits (including Dubenski and Dogpaw), the East Cedartree deposit, and several other highly prospective gold showings that have historically been explored by both surface and underground drilling and mine development.

The project is centered around the foundational resource of the Cameron gold deposit containing 464,000 oz Au in the Measured and Indicated categories, and an additional 533,000 oz Au in the Inferred category. Mineralization is greenstone-hosted, mainly within mafic volcanic rocks that are coincident with a northwest trending shear zone (Cameron Lake Shear Zone) which dips steeply to the northeast. The Mineral Resource estimate for the Cameron Gold Project was completed in 2017, and its associated technical report titled "Technical Report on the Cameron Gold Deposit, Ontario, Canada" and dated January 17, 2017, was prepared by Optiro Pty Limited in accordance with NI 43-101 and is available under the Company's SEDAR profile at <u>www.sedar.com</u>. The project benefits from excellent infrastructure with year-round highway access, an exploration camp, a powerline within 20 km, and is 88 km from New Gold's Rainy River gold mine.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

The 2020 acquisition of the East Cedartree claims from Metalore (see below for more details) consolidated a strategic section of the Cameron Gold Project and resulted in an increase in over 3,200 Ha of prospective mineral tenure to the original Cameron Gold Project land package.

During the year ended December 31, 2022, the most significant expenditures at the Cameron Gold Project were:

● $83,000 in connection with exploration and technical consulting;

● $94,000 for site employees' salaries and management salary allocations;

● <u>$47,000</u> in connection with ongoing environmental permitting and community consultations; and

 $224,000

![](firstmining_ex992img7.jpg)

On December 3, 2020, the Company entered into an asset purchase agreement with Metalore Resources Limited ("**Metalore**") to acquire its East Cedartree claims. The transaction closed on December 9, 2020. Under the terms of the transaction, First Mining paid Metalore $3,000,000 cash and issued 3,000,000 First Mining Shares to Metalore. The East Cedartree claims contain an existing Mineral Resource estimate that was prepared in accordance with NI 43-101 and encompass a highly favourable geological setting for new gold discoveries in close proximity to the existing known deposits at the Company's Cameron and West Cedartree properties. The acquisition of the East Cedartree claims consolidates First Mining's land holdings at the Cameron Gold Project into a single contiguous block and added a further 3,200 Ha to the 49,574 Ha that First Mining already holds in the district. As a result of the acquisition of the East Cedartree claims, the Cameron Gold Project now covers an area of 52,774 Ha and comprises 24 patented claims, 2,001 mining claims, four mining leases, and seven Licenses of Occupation.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

In 2021, First Mining completed surface water and groundwater quality sampling on and around the Cameron Gold Project in order to maintain an ongoing process of data collection to support any baseline studies for future permitting. Work on the property also included historical drill core organization and site infrastructure maintenance. Exploration field work was also carried out in 2021, which consisted of a ten-day rock sampling program with approximately 50 samples collected for analysis.

In 2022, First Mining completed a desktop study comprising of data compilation, geological modelling and exploration target generation across the northern majority of the property covering an area of approximately 700 square kilometres and generating 54 targets for future advancement.

**Future Work Plans**

An initial 4,000 m drill program at the Cameron Project is proposed in order to advance the exploration potential of the local geology and identify new drill targets at the West Cedartree and East Cedartree claims. An exploration permit application in support of this planned work was submitted by First Mining in 2021 and is under review by the Ontario Ministry. First Mining continues to provide opportunities for the sharing of updates and information about the Cameron Gold Project with local Indigenous communities. Animakee Wa Zhing #37 First Nation and First Mining signed an exploration agreement in June 2021.

**Other Mineral Properties and Mineral Property Interests**

The following table sets out the Company's remaining projects by region as of December 31, 2022. These projects are 100%-owned by the Company.

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| |
|:---|
| **Canada** |
| Duquesne, Québec <sup>(1)</sup><br> Turquoise Canyon, Nevada<sup>(2)</sup> |
| Pitt, Québec |

---

(1) In connection with an agreement entered into by Clifton Star on July 31, 2012, prior to its acquisition by First Mining, Clifton Star purchased 0.5% of a 3% NSR royalty on the Duquesne Gold Project for $1,000,000 in cash. Per the terms of this agreement, beginning June 2019, the remaining 2.5% NSR must be purchased over the ensuing five years in tranches of 0.5% for $1,000,000 for each tranche. Management is currently in discussions with the royalty owners regarding potential amendments to the timing and amount of any future payments related to this royalty repurchase.

(2) Property under option agreement with Westward Gold Inc. The $25,000 cash and $216,000 in share payments that the Company has received to date was pursuant to the option agreement that the Company entered into with Momentum (which was subsequently acquired by IM Exploration Inc. on July 6, 2021, and IM Exploration Inc. was renamed to Westward Gold Inc. on October 7, 2021). On January 30, 2023, Westward Gold exercised its option to acquire the Turquoise Canyon property, and as a result, First Mining no longer owns the Turquoise Canyon property.

***Non-Material Projects***

**Hope Brook Gold Project, Newfoundland**

The Hope Brook Gold Project is located 85 km east of Port aux Basques, Newfoundland and covers an area of 26,650 Ha over six mineral licenses, with a deposit hosted by pyritic silicified zones occurring within a deformed, strike-extensive advanced argillic alteration zone.

The project has well maintained infrastructure on site, including an operational 28-person camp, an 1,100 m airstrip, ice-free docking facility and importantly, connection to the provincial electrical power grid via an on-site substation. The Hope Brook Gold Project was a former operating gold mine that produced 752,163 oz Au from 1987 to 1997.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

<u>Earn-In Agreement with Big Ridge Gold</u>

On April 6, 2021, First Mining announced that it had entered into an earn-in agreement (the "**Big Ridge Earn-In Agreement**") with Big Ridge Gold Corp. ("**Big Ridge**") pursuant to which Big Ridge may earn up to an 80% interest in Hope Brook. A summary of the transaction is set out in the table below and additional detail related to the earn-in arrangement is included in the Company's news release dated April 6, 2021.

---

| | |
|:---|:---|
| **Hope Brook Gold Project Earn-in Summary** |  |
| **Upfront Consideration (Complete)** | **Stage 2 Earn-in (additional 29% earn-in over 2 years)**  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;● $500,000 cash upon closing | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;● Additional $10,000,000 in project exploration spend |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;● 11.5 million shares of Big Ridge upon closing<br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;● Up to 10 million shares of Big Ridge to a maximum of 19.9% ownership<br>|
| **Stage 1 Earn-in (51% earn-in over 3-year period) (Complete)** | **Additional Terms:** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;● $10,000,000 in project exploration spend | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;● JV to be created upon completion of Stage 1 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;● 15 million shares of Big Ridge | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;● First Mining free carried to a feasibility study |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;● 1.5% NSR royalty (0.5% buyback for $2.0M) – sold in Jan/23 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;● $2M cash payment upon commercial production |

---

First Mining also has the right to nominate one member to the Board of Directors of Big Ridge (the "**Big Ridge Board**") for so long as First Mining owns at least 10% of the issued and outstanding shares of Big Ridge. James Maxwell, the Company's VP, Exploration, was appointed to the Big Ridge Board in January 2022 as the Company's nominee.

In the year ended December 31, 2021, the Company received $500,000 and 11,500,000 shares of Big Ridge upon closing the transaction, which were credited against the Hope Brook project mineral property on the Company's Statement of Financial Position as at September 30, 2021. The Company has determined that its ownership of Big Ridge shares and its representation on the Big Ridge Board gives it significant influence over Big Ridge, resulting in the Big Ridge Investment being recorded on First Mining's financial statements using the equity method of accounting as an investment in associate.

On September 13, 2022, the Company announced that Big Ridge had completed the Stage 1 earn-in requirements with respect to the Hope Brook Gold Project, as set out in the Big Ridge Earn-In Agreement. As required under the agreement, Big Ridge has (i) incurred $10 million in qualifying exploration expenditures at Hope Brook, (ii) issued 15,000,000 common shares of Big Ridge to First Mining, and (iii) granted to First Mining a 1.5% NSR royalty on Hope Brook, of which 0.5% can be bought back by Big Ridge for $2 million.

With the Stage 1 Earn-In now complete, Big Ridge has earned a 51% ownership interest in Hope Brook and has until June 8, 2026 to acquire an additional 29% direct interest in Hope Brook (the "**Stage 2 Earn-In**") by: (i) incurring a further $10 million in exploration expenditures; and (ii) issuing additional Big Ridge Shares to First Mining in the amount that is the lesser of (a) 10,000,000 Big Ridge Shares; or (ii) the number of Big Ridge Shares which, when combined with the number of Big Ridge Shares owned by First Mining at the time of issuance, would result in First Mining owning 19.9% of the issued and outstanding Big Ridge Shares outstanding. Upon completion of the Stage 2 Earn-In, First Mining will hold a 20% interest in Hope Brook which will be free carried until the completion of a Feasibility Study by Big Ridge.

As at December 31, 2022, Big Ridge had completed 61 diamond drill holes (19,985 m) from its 2021/2022 Phase I drill program and released results from 45 of those holes. Results continue to extend gold and copper mineralization to the southwest of the former producing Hope Brook open pit. The Phase 1 program has focused on connecting the Main Zone and the 240 Zone near surface and at depth, respectively, and testing the down dip extensions to both the Main and 240 Zones.

An updated Mineral Resource Estimate ("MRE") was announced by Big Ridge Gold Corp. for the Hope Brook Gold Project in their news release dated 21 February 2023. The MRE was completed by SGS Geological Services and is based on data from 763 surface and underground drill holes representing 164,865 m of drilling, including data for 60 surface drill holes for 19,090 m completed by Big Ridge in 2021 and 2022. The new resource estimate contemplates open-pit mineral extraction and identifies both in-pit resources and out-of-pit resources considered accessible by underground mining methods.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**Hope Brook Project Mineral Resource Statement, effective January 17, 2023**

---

| | | | | |
|:---|:---|:---|:---|:---|
| <br> **IN PIT** | <br> **IN PIT** | <br> **IN PIT** | <br> **IN PIT** | <br> **IN PIT** |
| **Hope Brook** | **Cut-off Grade**<br> **(g/t Au)** | **Tonnes** | **Grade**<br> **(Au g/t)** | **Contained**<br> **Gold Ounces** |
| <br> **INDICATED** | <br> **INDICATED** | <br> **INDICATED** | <br> **INDICATED** | <br> **INDICATED** |
| Main Zone | 0.4 | 14584000 | 2.14 | 1002000 |
| <br> **UNDERGROUND** | <br> **UNDERGROUND** | <br> **UNDERGROUND** | <br> **UNDERGROUND** | <br> **UNDERGROUND** |
| **Hope Brook** | **Cut-off Grade**<br> **(g/t Au)** | **Tonnes** | **Grade**<br> **(Au g/t)** | **Contained**<br> **Gold Ounces** |
| <br> **INDICATED** | <br> **INDICATED** | <br> **INDICATED** | <br> **INDICATED** | <br> **INDICATED** |
| 240 Zone | 2.0 | 544000 | 4.31 | 75000 |
| Main Zone | 2.0 | 1062000 | 3.78 | 129000 |
| <br> **INFERRED** | <br> **INFERRED** | <br> **INFERRED** | <br> **INFERRED** | <br> **INFERRED** |
| 240 Zone | 2.0 | 1994000 | 3.28 | 210000 |
| Main Zone | 2.0 | 221000 | 2.96 | 21000 |
| <br> **IN PIT AND UNDERGROUND** | <br> **IN PIT AND UNDERGROUND** | <br> **IN PIT AND UNDERGROUND** | <br> **IN PIT AND UNDERGROUND** | <br> **IN PIT AND UNDERGROUND** |
| **Hope Brook** | **Cut-off Grade**<br> **(g/t Au)** | **Tonnes** | **Grade**<br> **(Au g/t)** | **Contained**<br> **Gold Ounces** |
| <br> **INDICATED** | <br> **INDICATED** | <br> **INDICATED** | <br> **INDICATED** | <br> **INDICATED** |
| 240 Zone | 2.0 | 544000 | 4.31 | 75000 |
| Main Zone | 0.5 and 2.0 | 15646000 | 2.25 | 1131000 |
| <br> **INFERRED** | <br> **INFERRED** | <br> **INFERRED** | <br> **INFERRED** | <br> **INFERRED** |
| 240 Zone | 2.0 | 1994000 | 3.28 | 210000 |
| Main Zone | 2.0 | 221000 | 2.96 | 21000 |

---

For further information on the updated Hope Brook MRE refer to Big Ridge Gold Corp's news release dated 21 February 2023, which is available on their website at https://bigridgegold.com. A Technical Report prepared under NI 43-101 Standards of Disclosure for Mineral Projects disclosing the new MRE will be filed on SEDAR (www.sedar.com) within 45 days of the 21 February 2023 news release.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**SELECT QUARTERLY FINANCIAL INFORMATION**

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| Financial Results (in $000s Except for per Share Amounts): | Financial Results (in $000s Except for per Share Amounts): | Financial Results (in $000s Except for per Share Amounts): | Financial Results (in $000s Except for per Share Amounts): | Financial Results (in $000s Except for per Share Amounts): | Financial Results (in $000s Except for per Share Amounts): | Financial Results (in $000s Except for per Share Amounts): | Financial Results (in $000s Except for per Share Amounts): | Financial Results (in $000s Except for per Share Amounts): |
|  | **2022-Q4** | **2022-Q3** | **2022-Q2** | **2022-Q1** | **2021-Q4** | **2021-Q3** | **2021-Q2** | **2021-Q1** |
| Net Income (Loss) | $**(8131)** | $(2669) | $(4707) | $(773) | $(6485) | $2419 | $(1283) | $(33001) |
| Fair value adjustment due to impairment of non-current assets | **(757)** | (2180) | (7424) |  | (749) |  |  | (23555) |
| Total cash used in operating activities <sup>(2)</sup> | **(1696)** | (28) | (859) | (2434) | (940) | (1689) | (1940) | (1874) |
| Basic and Diluted Net Income (Loss) Per Share (in dollars) <sup>(3)</sup> | **(0.01)** | (0.00) | (0.01) | (0.00) | (0.01) | 0.00 | (0.00) | (0.05) |
| Financial Position (in $000s): |  |  |  |  |  |  |  |  |
|  | **2022-Q4** | **2022-Q3** | **2022-Q2** | **2022-Q1** | **2021-Q4** | **2021-Q3** | **2021-Q2** | **2021-Q1** |
| Cash and Cash Equivalents | **13558** | 6587 | 15641 | 23724 | 29516 | 30348 | 33762 | 39174 |
| Working Capital <sup>(1)</sup> | **5612** | 2994 | 15265 | 24851 | 34946 | 41819 | 36058 | 22114 |
| Investments | **184** | 4715 | 6320 | 11183 | 13386 | 17331 | 20450 | 13907 |
| Mineral Properties  | **221147** | 219196 | 185459 | 180918 | 170017 | 165073 | 160322 | 186761 |
| Investment in Treasury Metals Inc. | **5592** | 6000 | 7800 | 15271 | 15400 | 16260 | 16236 | 39867 |
| Investment in PC Gold Inc. | **21572** | 21535 | 21568 | 21569 | 21570 | 21570 | 35999 |  |
| Investment in Big Ridge Gold Corp. | **2119** | 2915 | 1465 | 1434 | 1491 | 1569 | 1577 |  |
| Total Assets | **266933** | 264533 | 247249 | 267385 | 260309 | 260510 | 299750 | 287856 |
| Total Non-Current Liabilities | $**30015** | $18578 | $19909 | $26964 | $27419 | $24826 | $33015 | $32522 |

---

(1) These are non-IFRS measures with no standardized meaning under IFRS. For further information and a detailed reconciliation, please refer to the section in this MD&A titled *"Non-IFRS Measures".* 

(2) Per the consolidated statements of cash flows in each of the corresponding periods presented.

(3) The basic and diluted loss per share calculations result in the same amount due to the anti-dilutive effect of outstanding stock options and warrants in all periods.

**Key trends in the quarterly results are as follows:**

**Net loss –** quarter to quarter fluctuations are due to the timing of non-cash items. Share-based payments expense, which fluctuates due to the timing and number of stock option grants together with the associated fair value dollar amount calculated at the time of the grant, is one of the more common examples. In addition to fair value adjustments which are required as and when facts dictate, other non-cash items are fair value movements on the Silver Stream derivative liability and certain investments based on underlying market prices at period end. As can be seen in the table above, the fluctuation in cash used in operating activities does not tend to vary nearly as much as net income (loss).

**Cash and cash equivalent –** fluctuations are principally due to the amount and timing of cash used to fund investing activities at the Company's mineral property portfolio, offset by potential financings provided by private placements, public offerings, the exercise of options and warrants to support such activities and the divestment of project interests or investment positions. An increase in cash and cash equivalents in Q4 2022 is primarily due to the sale of the Company's 1.5% NSR Royalty on Goldlund for US$7,000,000 (approx. $9.6 million) (Financial Statement Note 8(a)) and sale of marketable securities for net proceeds of $4.2 million (see Financial Statement Note 5).

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**Total assets** – quarterly changes are the direct result of fluctuations described above in cash and cash equivalents and investments in the current asset category, and due to mineral property expenditure additions and more recently the equity loss and recorded fair value adjustments of our investments in Treasury Metals, Big Ridge Gold, and PC Gold, all of which are in the non-current asset category.

**Non-current liabilities –** changes occur predominantly due to the Silver Stream derivative liability fair value movement at each period end date.

**RESULTS OF CONTINUING OPERATIONS**

Unless otherwise stated, the following financial data was prepared on a basis consistent with IFRS and extracted from the audited consolidated annual financial statements for the years ended December 31, 2022 and 2021.

***<u>Fourth Quarter 2022 Compared to Fourth Quarter 2021</u>***

For the three months ended December 31, 2022, net loss for the period has increased by $1,648,000 compared to the three months ended December 31, 2021. The most significant components of this overall change are explained by the following:

---

| | | |
|:---|:---|:---|
| **Income Statement Category** | **Variance between**<br> **Periods - (Increase) decrease** | **Explanation** |
| **Loss from operational activities** |  |  |
| General and administration  | $1103000 | In the prior year quarter, there were litigation expenses. In addition, the decrease is due to lower spending on salaries and compensation and associated share-based payment expenses.  |
| Exploration and evaluation | $190000 | Decrease is due to lower spending on salaries and compensation and associated share-based payment expenses offset by an increase in professional fees.  |
| **Other items** |  |  |
| Change in fair value on Silver Stream derivative liability (non-cash) | $(7419000) | Increase in the value loss on the silver stream derivative compared to Q4 2021 period which was primarily a result of the discount rate and silver price futures curve movements between periods.  |
| Gain on sale of mineral properties | $5728000 | Gain is due to the sale of the Company's 1.5% NSR Royalty on Goldlund for US$7,000,000 (approx. $9.6 million) with a book value of $3.7 million. |
| Other expenses and foreign exchange | $(360000) | Loss is primarily related to the environmental reclamation provision adjustment in the year due to increase in contingency estimate.  |
| Investments fair value gain (non-cash) | $(441000) | Decrease in the fair value gain between periods primarily due to the sale of Auteco and Globex shares during the quarter.  |
| Equity loss and dilution impacts of equity accounted investments (non-cash) | $(219000) | Increase primarily relates to the Treasury Metals and Big Ridge equity pick-up loss recorded in Q4 2022 due to the increased activity compared to the same period last year.  |
| **Net loss for the quarter** | $**(1648000)** | Increase in net loss predominantly relates to the fair value loss on the Silver Stream liability and fair value adjustment on the PC Gold Option. The net loss was offset by the gain resulting from the sale of the Goldlund royalty and a decrease in general and administration expenses.  |
| **Other comprehensive loss** |  |  |
| Investments fair value loss (non-cash) | $(855000) | Decrease due to less fair value losses on marketable securities recorded through OCI in Q4 2022 compared to the same period last year as a result of the underlying share price changes in these strategic investments. |
| **Net loss and comprehensive loss** | $**(2724000)** | Increase in net loss and comprehensive loss compared to net income and comprehensive income predominantly relates to the reasons given above for the net loss variance. |

---

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

***<u>Fiscal Year 2022 Compared to Fiscal Year 2021</u>***

For the year ended December 31, 2022, net loss for the period has decreased by $22,071,000 compared to the prior year. The most significant components of this overall change are explained by the following:

---

| | | |
|:---|:---|:---|
| **Income Statement Category** | **Variance between**<br> **Periods - (Increase) decrease** | **Explanation** |
| **Loss from operational activities** |  |  |
| General and administration | $1303000 | Decrease due to reduction in consulting fees in connection with advising on transactions. In addition, in the prior year quarter there were litigation expenses. |
| Investor relations and marketing communications | $853000 | Decrease due reduced marketing and investor relations expenditures on advisory costs year to date. |
| Fair value adjustment due to impairment of non-current assets (non-cash) | $13943000 | The decrease is related to the $23.6 million write-down of the investment in Treasury Metals carrying value in 2021. The investment is equity accounted and experienced a significant decline in fair value which resulted in a fair value adjustment due to impairment.  |
| **Other items** |  |  |
| Gain on deconsolidation of subsidiary<br>| $8830000 | Following completion of the Stage 1 earn-in by Auteco in Q2 2021, First Mining's percentage ownership of PC Gold was reduced from 100% to 49% which led to a loss of control and deconsolidation of the PC Gold subsidiary. |
| Gain on sale of mineral properties | $(5728000) | Gain is due to the sale of the Company's 1.5% NSR Royalty on Goldlund for US$7,000,000 (approx. $9.6 million) with a book value of $3.7 million. |
| Change in fair value loss on Silver Stream derivative liability (non-cash) | $(1988000)<br>| Fair value loss on the silver stream derivative decreased compared with the fair value loss in 2021 which was primarily result of the discount rate, market volatility and silver price futures curve movements between periods. |
| Investments fair value loss (non-cash) | $2604000 | Decrease in fair value loss between periods primarily due to the fall in First Majestic share price in 2021.  |
| Equity loss and dilution impacts of equity accounted investments (non-cash) | $(4873000) | Decrease relates to the Treasury Metals equity loss recorded in 2022 being significantly lower than the movement recorded in Q2 2021 which reflected a $5 million dilution event. |
| **Net loss for the period** | $**22071000** | Decrease in net loss predominantly relates to the prior year fair value adjustment due to impairment of non-current assets and gain on deconsolidation of subsidiary which was partially offset by the gain on sale of mineral properties. |
| **Other comprehensive loss** |  |  |
| Investments fair value (loss) (non-cash) | $(3321000) | Decrease due to fair value losses on marketable securities recorded through OCI in 2022 compared to 2021 period due to underlying share price changes in these strategic investments. |
| Mineral property investments fair value loss (non-cash) | $(3244000) | Decrease due to larger fair value losses on mineral property investments recorded through OCI in 2022 compared to the 2021 gain primarily a result of a change in spot gold price. |
| **Net loss and comprehensive loss** | $**15522000** | Decrease in net loss and comprehensive loss predominantly relates to the reasons given above for the net loss variance. |

---

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**FINANCIAL CONDITION, LIQUIDITY AND CAPITAL RESOURCES**

---

| | | |
|:---|:---|:---|
| **(in $000s)** | **Year ended December 31** | **Year ended December 31** |
|  | **2022** | **2021** |
| **CASH PROVIDED BY (USED IN)** |  |  |
| Operating activities | $(5082) | $(6443) |
| Investing activities | (15809) | 1847 |
| Financing activities | 4889 | 5263 |
| Foreign exchange effect on cash | 44 | (52) |
| **CHANGE IN CASH AND CASH EQUIVALENTS**  | **(15958)** | **615** |
| Working capital <sup>(1)</sup> | 5612 | 33956 |
| Cash and cash equivalents, beginning | 29516 | 28901 |
| **Cash and cash equivalents, ending** | $**13558** | $**29516** |

---

<sup>(1)</sup> Working capital is a non-IFRS measurement with no standardized meaning under IFRS and may not be comparable to similar financial measures presented by other issuers. For further information and a detailed reconciliation, please see the section in this MD&A titled "*Non-IFRS Measures – Working Capital*".

Key reasons for variances from December 31, 2021 to December 31, 2022 include:

● The decrease in cash and cash equivalents was primarily due to cash used in investing and operating activities related to the acquisition of the Duparquet asset and mineral property expenditures partially offset by cash proceeds from the private placement, sale of royalty and sale of investments;

● Cash used in operating activities increased slightly due to non-cash working capital items offset by decreased fair value adjustments due to impairment of non-current assets compared to the previous year;

● Cash used in investing activities increased primarily due to the Duparquet property acquisition and increased mineral property expenditures at Springpole and Birch-Uchi. In addition, cash provided by proceeds from sale of investments increased notably between the years;

● Cash provided by financing activities slightly decreased despite a private placement that occurred in Q3 2022. Sources of financing for 2021 pertained to the proceeds from the First Majestic Silver Stream and exercise of warrants and stock options.

● Working capital is lower in the fourth quarter 2022 compared to the fourth quarter 2021 due to the reduction of the underlying cash balance and sale of investments in current assets despite the decrease in accounts payable and accrued liabilities.

**Trends in Liquidity, Working Capital, and Capital Resources** 

As at December 31, 2022, the Company had working capital of $5,612,000 (December 31, 2021 - $33,956,000). The Company has no history of revenues from its operating activities. The Company is not in commercial production on any of its mineral properties and accordingly does not generate cash from operations. During the year ended December 31, 2022, the Company had negative cash flow from operating activities. The Company anticipates it will have negative cash flow from operating activities into the foreseeable future.

Since the year ended December 31, 2021, the Company has financed its activities through a royalty sale and sales of its investments in other companies. In addition to adjusting spending, disposing of assets and seeking other non-equity sources of financing, the Company remains reliant on equity markets for raising capital through the issuance of new shares until it can generate positive cash flow from operations to finance its exploration and development programs.

The Company believes it has sufficient cash resources to maintain its mineral properties in good standing for the next twelve months and meet its flow through expenditure obligations.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**OUTLOOK** 

We remain focused on advancing the Company's strategic objectives towards near-term milestones, which include the following:

● Advancing the Springpole EA process which includes a focus on community, Indigenous rights holder and stakeholder engagement.

● Advancing exploration, environmental and technical work at the Duparquet Gold Project, including environmental baseline monitoring, geological data compilation and targeting, initiation of a 2023 drill program, and commencement of a PEA study.

● Progressing some key Feasibility FS areas at Springpole, such as geotechnical optimization, further process optimization, and power connection studies. Springpole and Birch-Uchi exploration activities to identify and follow-up on regional targets.

● Pending receipt of exploration permits, executing a Cameron drill program to increase understanding of local geology and identify new targets.

● Maintaining a strong balance sheet and cash position to fund investing activities consistent with First Mining's business strategy.

● Continuing with the environmental, social and governance ()"**ESG**") reporting framework as outlined in the Company's inaugural ESG report published in July 2022.

**FINANCIAL INSTRUMENTS**

All financial instruments are required to be measured at fair value on initial recognition net transaction costs in some cases. Fair value is based on quoted market prices unless the financial instruments are not traded in an active market. In this case, the fair value is determined by using valuation techniques like the Black-Scholes option pricing model or other valuation techniques. Measurement in subsequent periods depends on the classification of the financial instrument. A description of the Company's financial instruments and their fair value is included in the audited consolidated annual financial statements for the year ended December 31, 2022, filed on SEDAR at <u>www.sedar.com</u>. Risks related to financial instruments is discussed under Risks and Uncertainties.

In the normal course of business, the Company is inherently exposed to certain financial risks, including market risk, credit risk and liquidity risk, through the use of financial instruments. The timeframe and the manner in which we manage these risks varies based upon our assessment of these risks and available alternatives for mitigation. We do not acquire or issue derivative financial instruments for trading or speculative purposes. All transactions undertaken are to support our operations.

**RELATED PARTY TRANSACTIONS**

Amounts paid to related parties were incurred in the normal course of business and measured at the amount agreed upon by the transacting parties and on terms and conditions similar to non-related parties. There were no significant transactions with related parties outside of the ordinary course of business during the year ended December 31, 2022.

**OFF-BALANCE SHEET ARRANGEMENTS**

The Company has no off-balance sheet arrangements that have, or are reasonably likely to have, a current or future effect on the results of operations or financial condition of the Company including, without limitation, such considerations as liquidity and capital resources.

**FINANCIAL LIABILITIES AND COMMITMENTS**

The Company's current financial liabilities as at December 31, 2022 are summarized as follows:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **(in $000s)** | **Carrying Amount** | **Contractual Amount** | **Less than 1 year** | **1 – 3** <br> **years** | **4 – 5** <br> **years** | **After 5 years** |
| Accounts payable and accrued liabilities | $2847 | $2847 | $2847 | $- | $- | $- |
| Lease liability | 315 | 350 | 168 | 182 | - | - |
| **Total** | $**3162** | $**3197** | $**3015** | $**182** | $**-** | $**-** |

---

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**NON-IFRS MEASURES**

Alternative performance measures in this document such as "cash cost", "AISC" and "AIC" are furnished to provide additional information. These non-IFRS performance measures are included in this MD&A because these statistics are used as key performance measures that management uses to monitor and assess future performance of the Springpole Gold Project, and to plan and assess the overall effectiveness and efficiency of mining operations.

Certain Non-IFRS financial measures used in this MD&A are defined below.

*Total Cash Costs and Total Cash Costs per Gold Ounce –* Total Cash Costs are reflective of the cost of production. Total Cash Costs reported in the PFS include mining costs, processing, water & waste management costs, on-site general & administrative costs, treatment & refining costs, royalties and silver stream credits. Total Cash Costs per Ounce is calculated as Total Cash Costs divided by total LOM payable gold ounces.

*All-in Sustaining Costs ("AISC") and AISC per Gold Ounce – A*ISC is reflective of all of the expenditures that are required to produce an ounce of gold from operations. AISC reported in the PFS includes Total Cash Costs, sustaining capital and closure costs. AISC per Ounce is calculated as AISC divided by total LOM payable gold ounces.

In addition, the Company has included certain non-IFRS measures in the annual and quarterly information tables above for the calculation of working capital as current assets less current liabilities. The Company believes that these measures provide investors with an improved ability to evaluate the performance of the Company.

Non-IFRS measures do not have any standardized meaning prescribed under IFRS. Therefore, such measures may not be comparable to similar measures employed by other companies. The data is intended to provide additional information and should not be considered in isolation or as a substitute for measures of performance prepared in accordance with IFRS.

**ACCOUNTING POLICIES**

The Company's significant accounting policies are in accordance with IFRS and are contained in the audited consolidated financial statements for the year ended December 31, 2022. Furthermore, there were no changes in the Company's accounting policies during the 2022 financial year.

**CRITICAL ACCOUNTING ESTIMATES**

The preparation of the consolidated financial statements in conformity with IFRS requires management to make judgments, estimates and assumptions which affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Estimates are based on historical experience and other factors considered to be reasonable and are reviewed on an ongoing basis. Revisions to estimates and the resulting effects on the carrying amounts of the Company's assets and liabilities are accounted for prospectively.

Estimation uncertainties are described in the Company's audited consolidated financial statements for the year ended December 31, 2022.

**CRITICAL ACCOUNTING JUDGMENTS**

The preparation of financial statements requires management to exercise judgment in the process of applying its accounting policies. Judgments are regularly evaluated and are based on management's experience and other factors, including expectations about future events that are believed to be reasonable under the circumstances. In preparing the Company's audited annual consolidated financial statements for the year ended December 31, 2022, the Company used the same accounting policies and methods of computation as in the Company's audited consolidated annual financial statements for the financial year ended December 31, 2021. The following section discusses significant accounting policy judgments which have been made in connection with the financial statements for the year ended December 31, 2022:

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**Mineral Property Impairment Indicators**

In accordance with the Company's accounting policy for its mineral properties, exploration and evaluation expenditures on mineral properties are capitalized. There is no certainty that the expenditures made by the Company in the exploration of its property interests will result in discoveries of commercial quantities of minerals. The Company applies judgment to determine whether indicators of impairment exist for these capitalized costs.

Management uses several criteria in making this assessment, including the period for which the Company has the right to explore, expected renewals of exploration rights, whether substantive expenditures on further exploration and evaluation of mineral properties are budgeted, and evaluation of the results of exploration and evaluation activities up to the reporting date.

Fair Value Adjustment due to Impairment of Investment in Associates

With respect to its investments in Treasury Metals, PC Gold, and Big Ridge, which are accounted for using the equity method, the Company is required to make estimates and judgments about future events and circumstances and whether the carrying amount of the asset exceeds its recoverable amount. Recoverability of each investment depends on various factors, including the identification of economic recoverability of reserves at the respective exploration properties, the ability for each company to obtain the necessary financing to complete the development, and future profitable production or proceeds from the disposition of the underlying company shares themselves. The publicly quoted share price of each company, where applicable, is also a source of objective evidence about the recoverable amount of the equity investment.

**ACCOUNTING STANDARDS ISSUED BUT NOT YET APPLIED**

There are no IFRS or International Financial Reporting Interpretations Committee interpretations that are not yet effective that would be expected to have a material impact on the Company's consolidated financial statements.

**RISKS AND UNCERTAINTIES**

The Company is subject to a number of risks and uncertainties, each of which could have an adverse effect on its business operations or financial results. Some of these risks and uncertainties are detailed below. For a comprehensive list of the Company's risks and uncertainties, see the Company's AIF for the year ended December 31, 2022 under the heading "Risks that can affect our business", which is available under our SEDAR profile at www.sedar.com, and on EDGAR as an exhibit to Form 40-F.

**Risks related to Financial Instruments**

The Company thoroughly examines the various financial instruments and risks to which it is exposed and assesses the impact and likelihood of those risks. These risks include market risk (including equity price risk, foreign currency risk, interest rate risk and commodity price risk), credit risk, liquidity risk, and capital risk. Where material, these risks are reviewed and monitored by the Board.

The Board has overall responsibility for the determination of the Company's risk management objectives and policies. The overall objective of the Board is to set policies that seek to reduce risk as much as possible without unduly affecting the Company's competitiveness and flexibility.

a) Market Risk

Market risk is the risk that the fair value of future cash flows of a financial instrument will fluctuate due to changes in market prices. Market risk includes equity price risk, foreign currency risk, interest rate risk and commodity price risk.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

*Equity Price Risk* 

The Company is exposed to equity price risk as a result of holding investments in equity securities of several other mineral property related companies.

If the fair value of our investments in equity instruments designated as fair value through profit and loss (FVTPL) had been 10% higher or lower as at December 31, 2022, net loss for the year ended December 31, 2022 would have decreased or increased, respectively, by approximately $Nil (2021 – $840,000). If the fair value of our investments in equity instruments designated as fair value through other comprehensive income (FVTOCI) had been 10% higher or lower as at December 31, 2022, other comprehensive income (loss) for the year ended December 31, 2022 would have decreased or increased, respectively, by $18,000 (2021 – $1,142,000).

*Foreign Currency Risk*

The Company is exposed to financial risk related to the fluctuation of foreign exchange rates. As at December 31, 2022, the Company was exposed to currency risk on the following financial instruments denominated in US$. The sensitivity of the Company's net loss due to changes in the exchange rate between the US$ against the Canadian dollar is included in the table below in Canadian dollar equivalents:

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| | |
|:---|:---|
| Cash and cash equivalents | $13558 |
| Fair value of Silver Stream derivative liability | $(27171) |
| **Net exposure** | $**(13613)** |
| **Effect of +/- 10% change in currency** | $**(1361)** |

---

*Interest Rate Risk*

Interest rate risk is the risk that future cash flows will fluctuate as a result of changes in market interest rates. The Company does not have any borrowings that are subject to fluctuations in market interest rates. Interest rate risk is limited to potential decreases on the interest rate offered on cash and cash equivalents held with chartered Canadian financial institutions. The Company manages its interest rate risk by maximizing the interest income earned on excess funds while maintaining the necessary liquidity to conduct its day-to-day operations. The Company considers this risk to be immaterial.

*Commodity price risk*

The Company is subject to commodity price risk from fluctuations in the market prices for gold and silver. Commodity price risks are affected by many factors that are outside the Company's control including global or regional consumption patterns, the supply of and demand for metals, speculative activities, the availability and costs of metal substitutes, inflation, and political and economic conditions. The financial instrument impacted by commodity prices is the Silver Stream derivative liability and indirectly the PC Gold Option held relating to the net dilution from Auteco completing its additional 10% equity interest in PC Gold.

b) Credit Risk

Credit risk is the risk of financial loss to the Company if a counterparty to a financial instrument fails to meet its contractual obligations. Financial instruments which are potentially subject to credit risk for the Company consist primarily of cash and cash equivalents, accounts and other receivables, and the reclamation deposit. The Company considers credit risk with respect to its cash and cash equivalents to be immaterial as cash and cash equivalents are mainly held through high credit quality major Canadian financial institutions as determined by ratings agencies. As a result, the Company does not anticipate any credit losses.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

c) Liquidity Risk

Liquidity risk is the risk that the Company will not be able to meet its financial obligations as they become due. The Company's policy is to ensure that it will have sufficient cash to allow it to meet its liabilities when they become due, under both normal and stressed conditions, without incurring unacceptable losses or risking damage to the Company's reputation. The Company manages its liquidity risk by preparing annual estimates of exploration and administrative expenditures and monitoring actual expenditures compared to the estimates to ensure that there is sufficient capital on hand to meet ongoing obligations.

See the section in this MD&A titled *"Financial Liabilities and Commitments"* for a summary of the maturities of the Company's financial liabilities as at December 31, 2022 based on the undiscounted contractual cash flows.

As at December 31, 2022, the Company had cash and cash equivalents of $13,558,000 (December 31, 2021 – $29,516,000).

d) Capital Risk Management

The Company's objectives when managing capital are to safeguard the Company's ability to continue as a going concern in order to pursue the exploration and retention of its mineral properties. The Company has historically demonstrated the ability to raise new capital through equity issuances and/or through surplus cash as part of its acquisitions. In the management of capital, the Company includes the components of shareholders' equity as well as cash. The Company prepares annual estimates of exploration and administrative expenditures and monitors actual expenditures compared to the estimates to ensure that there is sufficient capital on hand to meet ongoing obligations.

**Other Risk Factors**

**Financing Risks**

The Company has finite financial resources, has no current source of operating cash flow and has no assurance that additional funding will be available to it for its future activities, including exploration or development of mineral projects. Such further activities may be dependent upon the Company's ability to obtain financing through equity or debt financing or other means. Failure to obtain additional financing could result in delay or indefinite postponement of exploration and development of the Company's existing mineral projects and could result in the loss of one or more of its properties.

**Exploration and Development Risks**

The exploration for and development of minerals involves significant risks, which even a combination of careful evaluation, experience and knowledge may not eliminate. These risks include:

● few properties that are explored are ultimately developed into producing mines;

● there can be no guarantee that the estimates of quantities and qualities of minerals disclosed will be economically recoverable;

● with all mining operations there is uncertainty and, therefore, risk associated with operating parameters and costs resulting from the scaling up of extraction methods tested in pilot conditions; and

● mineral exploration is speculative in nature and there can be no assurance that any minerals discovered will result in an increase in our resource base.

Exploration and development of mineral properties is capital intensive and unsuccessful exploration or development programs could have a material adverse impact on the Company's operations and financial condition.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**Global Financial Conditions**

Global financial conditions have, at various times in the past and may, in the future, experience extreme volatility. Many industries, including the mining industry, are impacted by volatile market conditions. Global financial conditions may be subject to sudden and rapid destabilizations in response to economic shocks or other events, such as developments concerning COVID-19, armed hostilities (such as those ongoing in the Ukraine) and economic sanctions. A slowdown in the financial markets or other economic conditions, including but not limited to consumer spending, employment rates, business conditions, inflation, fluctuations in fuel and energy costs, consumer debt levels, lack of available credit, the state of the financial markets, interest rates and tax rates, may adversely affect the Company's growth and financial condition. Future economic shocks may be precipitated by a number of causes, including government debt levels, fluctuations in the price of oil and other commodities, the volatility of metal prices, geopolitical instability, changes in laws or governments, war, terrorism, the volatility of currency exchanges, inflation or deflation, the devaluation and volatility of global stock markets, pandemics and natural disasters. Any sudden or rapid destabilization of global economic conditions could impact the Company's ability to obtain equity or debt financing in the future on terms favourable to the Company or at all. In such an event, the Company's operations and financial condition could be adversely impacted.

**Public Health Crises**

The Company's business, operations and financial condition could be 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. Such public health crises can result in disruptions and extreme volatility in financial markets and global supply chains as well as declining trade and market sentiment and reduced mobility of people, all of which could impact commodity prices, interest rates, credit ratings, credit risk, availability of financing and inflation. The risks to the Company of such public health crises also include risks to employee health and safety and 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. As of the date of this MD&A, the province of Ontario, where most of the Company's properties are located, has announced the repeal of many COVID-19 related restrictions, however there is no guarantee that any such restrictions will not be reimposed and therefore the extent to which COVID-19 may impact the Company remains uncertain and it is possible that COVID-19 could have a material adverse effect on the Company's business, results of operations and financial condition. There can be no assurances that the Company will not be required to demobilize, or further demobilize, its personnel and contractors at any of its mineral projects due to a public health crisis, including without limitation, the ongoing COVID-19 pandemic. Any such demobilization may have an adverse impact on the Company's ability to conduct exploration and further advance its work programs on the affect properties and on the Company's business, financial condition or results of operations.

**Risks Generally**

For a comprehensive discussion of the risks and uncertainties that may have an adverse effect on the Company's business, operations and financial results, refer to the Company's latest AIF for the year ended December 31, 2022 filed with Canadian securities regulatory authorities at www.sedar.com, and filed under Form 40-F with the United States Securities Exchange Commission at <u>www.sec.gov/edgar.html</u>. The AIF, which is filed and viewable on www.sedar.com and <u>www.sec.gov/edgar.html</u>, is available upon request from the Company.

**QUALIFIED PERSONS**

Hazel Mullin, P.Geo., Director of Data Management and Technical Services at First Mining, is a Qualified Person as defined by NI 43-101, and is responsible for the review and verification of the scientific and technical information in this MD&A.

Louis Martin, P.Geo., (OGQ 0364) a consultant of First Mining, is a Qualified Person as defined by NI 43-101, and he has reviewed and approved the scientific and technical disclosure in this MD&A relating to the Company's projects in Quebec.

**SECURITIES OUTSTANDING**

As at the date on which this MD&A was approved and authorized for issuance by the Board, the Company had 807,658,020 common shares issued and outstanding; 32,100,228 warrants outstanding; 56,667,500 options outstanding; 3,837,047 restricted share units outstanding; 6,813,000 performance share units; and 1,109,000 deferred share units outstanding.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**DISCLOSURE CONTROLS AND PROCEDURES**

The Company's Management, with the participation of its Chief Executive Officer ("**CEO**") and its Chief Financial Officer ("**CFO**"), have evaluated the effectiveness of the Company's disclosure controls and procedures. Based upon the results of that evaluation, the Company's CEO and CFO have concluded that, as of December 31, 2022, the Company's disclosure controls and procedures were effective to provide reasonable assurance that the information required to be disclosed by the Company in reports it files is recorded, processed, summarized and reported, within the appropriate time periods and is accumulated and communicated to Management, including the CEO and CFO, as appropriate to allow timely decisions regarding required disclosure.

**MANAGEMENT'S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING**

The Company's Management, with the participation of its CEO and CFO, is responsible for establishing and maintaining adequate internal control over financial reporting as such term is defined in the SEC's rules and the rules of the Canadian Securities Administrators. The Company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of annual financial statements for external purposes in accordance with IFRS as issued by the International Accounting Standards Board. The Company's internal control over financial reporting includes policies and procedures that:

· address maintaining records that accurately and fairly reflect, in reasonable detail, the transactions and dispositions of assets of the Company;

· provide reasonable assurance that transactions are recorded as necessary for preparation of financial statements in accordance with IFRS;

· provide reasonable assurance that the Company's receipts and expenditures are made only in accordance with authorizations of Management and the Company's Directors; and

· provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the Company's assets that could have a material effect on the Company's consolidated financial statements.

The Company's internal control over financial reporting may not prevent or detect all misstatements because of inherent limitations. Additionally, projections of any evaluation of effectiveness for future periods are subject to the risk that controls may become inadequate because of changes in conditions or deterioration in the degree of compliance with the Company's policies and procedures.

There have been no significant changes in our internal controls during the year ended December 31, 2022 that have materially affected, or are likely to materially affect, the Company's internal control over financial reporting.

**LIMITATIONS OF CONTROLS AND PROCEDURES**

The Company's Management, including the CEO and CFO, believes that any disclosure controls and procedures or internal control over financial reporting, no matter how well conceived and operated, may not prevent or detect all misstatements because of inherent limitations. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all control systems, they cannot provide absolute assurance that all control issues and instances of fraud, if any, within the Company have been prevented or detected. These inherent limitations include the realities that judgments in decision-making can be faulty, and that breakdowns can occur because of a simple error or mistake. Additionally, controls can be circumvented by the individual acts of some persons, by collusion of two or more people, or by unauthorized override of the control. The design of any control system is also based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions. Accordingly, because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and may not be detected.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

**FORWARD-LOOKING INFORMATION**

This MD&A is based on a review of the Company's operations, financial position and plans for the future based on facts and circumstances as of December 31, 2022. This MD&A contains "forward-looking statements" within the meaning of applicable Canadian securities regulations (collectively, "**forward-looking statements**"). Any statements that express or involve discussions with respect to predictions, expectations, beliefs, plans, projections, objectives, assumptions or future events or performance (often, but not always, using words or phrases such as "seek", "anticipate", "plan", "continue", "estimate", "expect", "may", "will", "project", "predict", "forecast", "potential", "targeting", "intend", "could", "might", "should", "believe" and similar expressions) are not statements of historical fact and may be "forward-looking statements". These statements relate to future events or the Company's future performance, business prospects or opportunities. Forward-looking statements include, but are not limited to: statements regarding the advancement of the Company's mineral assets towards production; statements regarding the potential for the Company to acquire additional mineral assets in the future; the Company's plans to advance the Duparquet Gold Project in 2023 by undertaking environmental data collection to update the environmental baseline data previously collected by Clifton Star in 2012 and 2013, and to undertake engineering trade-off studies and an updated economic study for Duparquet; statements regarding the next stages and anticipated timing of the metallurgical study or the environmental; statements regarding the completion of a FS for the Springpole Gold Project; statements regarding opportunities to enhance project economics identified under the PFS for the Springpole Gold Project; statements regarding the potential increase in gold and silver recoveries at the Springpole Gold Project; statements regarding opportunities for resource expansion within the existing footprint of Springpole and in the under-explored Birch-Uchi greenstone belt; statements regarding the continuation in 2023 of environmental data collection at Springpole, and consultation and engagement with Indigenous communities, regulators and stakeholders to support the final EA; statements regarding the anticipated receipt, timing and use of proceeds received by First Mining pursuant to the Silver Purchase Agreement; statements regarding the Company's intentions and expectations regarding exploration, infrastructure and production potential of any of its mineral properties; statements relating to the Company's working capital, capital expenditures and ability and intentions to raise capital; statements regarding the potential effects of financing on the Company's capitalization, financial condition and operations; forecasts relating to mining, development and other activities at the Company's operations; forecasts relating to market developments and trends in global supply and demand for gold; statements relating to future global financial conditions and the potential effects on the Company; statements relating to future work on the Company's non-material properties; statements relating to the Company's mineral reserve and mineral resource estimates; statements regarding regulatory approval and permitting including, but not limited to, EA approval for the Springpole Gold Project and the expected timing of such EA approval; statements regarding the Company's compliance with laws and regulations including, but not limited to environmental laws and regulations; statements regarding the Auteco Earn-In Agreement and cash payments, share issuances and exploration expenditure commitments thereunder; statements regarding the Big Ridge Earn-In Agreement and payouts, share issuances and exploration expenditure commitments thereunder; statements regarding the Company's engagement with local stakeholders including, but not limited to, local Indigenous groups; statements regarding maintaining a strong balance sheet and cash position to fund investing activities consistent with the Company's business strategy; statements regarding the potential impact of the COVID-19 pandemic; statements regarding key personnel; statements regarding non-IFRS measures and changes in accounting standards; statements relating to the limitation of the Company's internal controls over financial reporting; and statements regarding the preparation or conduct of studies and reports and the expected timing of the commencement and completion of such studies and reports; and statements regarding the Company's intention to continue with the ESG reporting framework outlined in the Company's inaugural ESG report that weas published in July 2022.

There can be no assurance that such statements will prove to be accurate, and future events and actual results could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from the Company's expectations are disclosed under the heading "*Risks that can affect our business*" in the Company's AIF for the year ended December 31, 2022 and other continuous disclosure documents filed from time to time via SEDAR with the applicable Canadian securities regulators. Forward-looking statements are based on the estimates and opinions of management made in light of management's experience and perception of historical trends, current conditions and expected future developments on the date the statements are made, and the Company does not undertake any obligation to update forward-looking statements should conditions or our estimates or opinions change, except as required by applicable laws. Actual results may differ materially from those expressed or implied by such forward-looking statements. These statements involve known and unknown risks, uncertainties, and other factors that may cause the Company's actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activity, performance or achievement expressed or implied by these forward-looking statements.

The Company believes that the expectations reflected in any such forward-looking statements are reasonable, but no assurance can be given that these expectations will prove to be correct and such forward-looking statements included herein this MD&A should not be unduly relied upon.

FIRST MINING GOLD CORP. Management's Discussion & Analysis <br> <u> (Expressed in Canadian dollars, unless otherwise indicated)</u>   <u> For the three months and year ended December 31, 2022</u>

CAUTIONARY NOTE TO U.S. INVESTORS

The technical information contained herein has been prepared in accordance with the requirements of the securities laws in effect in Canada, which differ from the requirements of the United States securities laws applicable to U.S. companies. 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 MD&A 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.

## Exhibit 99.1

**EXHIBIT 99.1**

![](firstmining_ex991img60.jpg)

**<u>CONTENTS</u>**

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| | |
|:---|:---|
| **<u>Important information about this document</u>** | 4 |
| Reporting currency and financial information | 4 |
| Non-IFRS Financial Measures | 4 |
| Caution about forward-looking information | 4 |
| Examples of forward-looking information in this AIF | 5 |
| Material risks | 6 |
| Material assumptions | 7 |
| National Instrument 43-101 definitions | 8 |
| Glossary of units | 10 |
| Glossary of elements | 10 |
| Glossary of abbreviations and acronyms | 10 |
| Cautionary note to US investors | 11 |
| **<u>About First Mining</u>** | 12 |
| Vision and strategy | 12 |
| General overview of our business | 13 |
| Three-year history | 16 |
| Recent developments | 24 |
| Corporate organization | 26 |
| Our projects | 27 |
| **<u>Material Properties</u>** | 28 |
| **<u>Springpole</u>** | 28 |
| Technical report | 28 |
| Project description, location and access | 28 |
| History | 32 |
| Geological setting, mineralization and deposit types | 33 |
| Exploration | 34 |
| Drilling | 35 |
| Sampling, analysis and data verification | 36 |
| Mineral processing and metallurgical testing | 40 |
| Mineral resource estimates | 42 |
| Mineral reserve estimates | 43 |
| Mining methods | 43 |
| Processing and recovery operations | 44 |
| Infrastructure, permitting and compliance activities | 45 |
| Capital and operating costs | 48 |
| Exploration, development and production | 51 |
| Recent developments | 51 |
| **<u>Duparquet</u>** | 56 |
| Technical report | 56 |
| Project description, location and access | 56 |
| History | 57 |
| Geological setting, mineralization and deposit types | 60 |
| Exploration | 61 |
| Drilling | 61 |
| Sampling, analysis and data verification | 62 |
| Mineral processing and metallurgical testing | 65 |
| Mineral resource estimates | 70 |
| Recent developments | 73 |

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*Page 2*

<u>**CONTENTS *(continued)***</u>

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| | |
|:---|:---|
| **<u>Cameron</u>** | 74 |
| Technical report | 74 |
| Project description, location and access | 74 |
| History | 75 |
| Geological setting, mineralization and deposit type | 76 |
| Exploration | 76 |
| Drilling | 76 |
| Sampling, analysis and data verification | 77 |
| Mineral processing and metallurgical testing | 82 |
| Mineral resource estimates | 82 |
| Recent developments | 84 |
| **<u>Non-material properties</u>** | 85 |
| **<u>Risks that can affect our business</u>** | 91 |
| Types of risk | 91 |
| Exploration, development, production and operational risks | 91 |
| Financial risks | 96 |
| Political risks | 100 |
| Regulatory risks | 101 |
| Environmental risks | 103 |
| Industry risks | 104 |
| Other risks | 105 |
| **<u>Investor information</u>** | 111 |
| Share capital | 111 |
| Common shares | 111 |
| Preferred shares | 112 |
| Security-based compensation and convertible securities | 112 |
| Material contracts | 118 |
| Market for our securities | 118 |
| Prior sales | 118 |
| Trading activity | 120 |
| Our team | 121 |
| Audit Committee information | 128 |
| Interests of experts | 130 |
| Additional information | 131 |
| Appendix A - Audit Committee Charter | 132 |

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*Page 3*

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| | |
|:---|:---|
| **Important information about this document** | Throughout this document, the terms *we, us, our, the Company* and *First Mining* mean First Mining Gold Corp. and its subsidiaries, in the context. |
|  | Throughout this document, the terms *we, us, our, the Company* and *First Mining* mean First Mining Gold Corp. and its subsidiaries, in the context. |
| <br> This annual information form ("**AIF**") provides important information about the Company. It describes, among other things, our history, our markets, our exploration and development projects, our Mineral Resources and Mineral Reserves, sustainability, our regulatory environment, the risks we face in our business and the market for our shares. | <br> This annual information form ("**AIF**") provides important information about the Company. It describes, among other things, our history, our markets, our exploration and development projects, our Mineral Resources and Mineral Reserves, sustainability, our regulatory environment, the risks we face in our business and the market for our shares. |

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**Reporting currency and financial information**

The reporting currency of the Company is Canadian dollars. Unless we have specified otherwise, all dollar amounts ("**$**") referred to in this AIF are in Canadian dollars. Any references to "**US$**" mean United States (US) dollars. On December 31, 2022, the exchange rate of US dollars into Canadian dollars, being the average exchange rate published by the Bank of Canada, was US$1.00 equals $1.35.

**Non-IFRS Financial Measures**

In this AIF we refer to future estimates of financial measures that are not IFRS financial measures ("**Non-IFRS Financial Measures**"). These financial measures are widely used in the mining industry as a benchmark for performance but do not have standardized meanings prescribed by IFRS and may differ from methods used by other companies with similar descriptions. Non-IFRS Financial Measures should not be considered in isolation or in substitute for measures of performance prepared in accordance with IFRS.

These Non-IFRS Financial Measures are included in this AIF because these statistics are used as key performance measures that management uses to monitor and assess future performance of the Springpole Project and to plan and assess the overall effectiveness and efficiency of mining operations. Non-IFRS Financial Measures included in this AIF are as follows:

· *Total Cash Costs and Total Cash Costs per Gold Ounce* - Total Cash Costs are reflective of the cost of production. Total Cash Costs reported in the AIF in regards to the Springpole Project include mining costs, processing, water and waste management costs, on-site general and administrative costs, treatment and refining costs, royalties and silver stream credits. Total Cash Costs per Ounce is calculated as Total Cash Costs divided by total LOM payable gold ounces.

· *All-in Sustaining Costs* ()"**AISC")** and AISC per Gold Ounce - AISC is reflective of all of the expenditures that are required to produce an ounce of gold from operations. AISC reported in the AIF is in regards to the Springpole Project includes Total Cash Costs, sustaining capital and closure costs. AISC per Ounce is calculated as AISC divided by total LOM payable gold ounces.

The AISC and Total Cash Costs are future estimates only and, as the Company has not generated production from the Springpole Project to date, no comparable historical figures are available.

**Caution about forward-looking information**

This AIF includes statements and information about our expectations for the future. When we discuss our strategy, business prospects and opportunities, plans and future financial and operating performance, or other things that have not yet taken place, we are making statements considered to be forward-looking information or forward-looking statements under applicable securities laws. We refer to them in this AIF as forward-looking information.

Key things to understand about the forward-looking information in this AIF:

· It typically includes words and phrases about the future, such as *expect, believe*, *estimate*, *anticipate*, *plan*, *intend*, *predict*, *goal*, *target*, *forecast, project*, *scheduled, potential*, *strategy* and *proposed* (see examples listed below).

· It is based on forecasts of future results, estimates of amounts not yet determinable and assumptions of management made in the light of management's experience and perception of historical trends, current conditions and expected future developments, including those we have listed below, which may prove to be incorrect.

· Actual results and events may be significantly different from what we currently expect, because of the risks associated with our business. We list a number of these material risks on the next page. We recommend you also review other parts of this AIF, including the section "*Risks that can affect our business"* starting on page 88, which discuss other material risks that could cause our actual results to differ from current expectations.

*Page 4*

Forward-looking information is designed to help you understand management's current views of our near-term and longer-term prospects. It may not be appropriate for other purposes. We will not update or revise this forward-looking information unless we are required to do so by applicable securities laws.

**Examples of forward-looking information in this AIF**

· statements regarding future acquisitions of mineral properties

· statements relating to our vision and strategy

· statements relating to our plans or intentions to pay, or not pay, a dividend to our shareholders

· our intention to de-risk our material assets through exploration, drilling, calculating resource estimates, conducting economic studies and other activities;

· our intention to utilize our management team's expertise to successfully permit and construct producing mines at our material assets

· statements relating to the criteria we will use when assessing potential acquisitions

· our belief that we will continue to be able to locate and retain professionals with the necessary specialized skills and knowledge

· statements regarding our intention and ability to select, acquire and bring to production suitable properties or prospects for mineral exploration and development

· our ability to raise the capital necessary to fund our operations and the potential development of our properties

· our ability to obtain the resources to conduct exploration and development activities on our properties

· our belief that the policies and procedures implemented by our executive management team provide a safe working environment for all of our employees, consultants, contractors and stakeholders

· forecasts relating to market developments and trends in global supply and demand for gold

· our ability to work with the various Indigenous communities in relation to the development of our projects

· our intention to continue to make expenditures to ensure compliance with applicable laws and regulations

· our intentions and expectations regarding exploration or drilling at any of our mineral properties

· statements regarding potential increases in the ultimate recovery of gold and silver from our properties, including the Springpole Project

*Page 5*

· statements regarding regulatory approval and permitting, including but not limited to the Environmental Assessment process currently underway and our plans to complete a Feasibility Study on the Springpole Project

· statements regarding continued drilling and other exploration activities at the Springpole Project

· statements regarding future drilling by Auteco Minerals Ltd. at the Pickle Crow Project

· statements regarding future exploration, drilling and operational activities at the Cameron Gold Project and the Duparquet Project

· statements regarding future activities by Big Ridge Gold Corp. at Hope Brook and our ownership of securities of Big Ridge Gold Corp.

· statements regarding future activities at the Swain Property, Birch Properties and Vixen Properties and our expectations and intentions regarding our involvement in such properties

· our intentions and expectations regarding exploration at any of our mineral properties

· forecasts relating to mining, development and other activities at our operations

· statements regarding projected capital and operating costs, net present value, AISC, Total Cash Costs and internal rate of return and cash flows of the Springpole Project

· future royalty and tax payments and rates

· future work on our non-material properties

· our Mineral Reserve and Mineral Resource estimates

· statements regarding future consideration payable to First Mining pursuant to the Silver Stream Agreement and the Treasury Metals SPA

**Material risks**

· exploration, development and production risks · we may be affected by environmental, safety and regulatory risks, including increased regulatory burdens or delays

· operational hazards · there may be defects in, or challenges to, title to our properties

· global financial conditions including supply chain issues, increased inflation, economic sanctions and the impact of armed hostilities, such as those ongoing in the Ukraine · our current or future mineral tenure or operations may be challenged by one or more groups of Indigenous rights holders

· commodity price fluctuations · some of our mineral projects have legacy environmental issues as a result of past operations which we may need to remediate

· availability of capital and financing on acceptable terms · we may lose our interest in certain projects if we fail to make certain required payments or minimum expenditures

· we have no history of commercially producing metals from our mineral exploration properties · we may be unable to enforce our legal rights under our existing agreements, permits or licences, or may be subject to litigation or arbitration that has an adverse outcome

· our Mineral Reserve and Mineral Resource estimates may not be reliable, or we may encounter unexpected or challenging geological, hydrological or mining conditions · we may be adversely affected by currency fluctuations, volatility in securities markets and volatility in mineral prices and interest rates

· our exploration plans may be delayed or may not be successful

· we may not be able to obtain or maintain necessary permits or approvals from government authorities

*Page 6*

· accidents or equipment breakdowns may occur · uncertainties and substantial expenditures related to determining whether Mineral Resources or Mineral Reserves exist on a property

· the cyclical nature of the mining industry · we may not be able to attract and retain suitable specialized personnel

· there may be changes to government regulations or policies, including tax and trade laws and policies · the impact of increased costs on the calculation of Mineral Reserves and on the economic viability of projects

· we may be adversely affected by changes in foreign currency exchange rates, interest rates or tax rates · future sales by existing shareholders could reduce the market price of our shares

· our estimates of production, purchases, costs, decommissioning or reclamation expenses, or our tax expense estimates, may prove to be inaccurate · climate change regulations may become more onerous over time as governments implement policies to further reduce carbon emissions

· we may be impacted by natural phenomena, including inclement weather, fire, flood and earthquakes and the impacts of climate change · we are exposed to risks associated with our equity holdings in other public companies

· our operations may be disrupted due to problems with our own or our customers' facilities, the unavailability of reagents or equipment, equipment failure, lack of tailings capacity, labour shortages, ground movements, transportation disruptions or accidents or other exploration and development risk · we may be impacted by public health crises, such as the COVID-19 pandemic ()"**COVID-19")** 

**Material assumptions**

· the assumptions regarding market conditions upon which we have based our capital expenditure expectations

· the availability of additional capital and financing on acceptable terms, or at all

· our Mineral Reserve and Mineral Resource estimates and the assumptions upon which they are based are reliable

· the success of our exploration plans

· our expectations regarding spot prices and realized prices for gold and other precious metals

· market developments and trends in global supply and demand for gold meeting expectations

· our expectations regarding tax rates and payments, foreign currency exchange rates and interest rates

· our reclamation expenses

· the geological conditions at our properties

· the underlying title to each of our properties is valid and will continue to be so

· our ability to satisfy payment and minimum expenditure obligations in respect of certain of our properties

· our ability to comply with current and future environmental, safety and other regulatory requirements, and to obtain and maintain required regulatory approvals without undue delay

· our operations are not significantly disrupted as a result of natural disasters, governmental or political actions, public health crises, such as the COVID-19 outbreak, litigation or arbitration proceedings, the unavailability of reagents, equipment, operating parts and supplies critical to our activities, equipment failure, labour shortages, ground movements, transportation disruptions or accidents or other exploration and development risks

· our ability to maintain the support of stakeholders and rights holders necessary to develop our mineral projects including, without limitation, Indigenous rights holders

· the accuracy of geological, mining and metallurgical estimates

· maintaining good relationships with the communities in which we operate

*Page 7*

**National Instrument 43-101 definitions**

Canadian reporting requirements for disclosure of mineral properties are governed by National Instrument 43-101 *Standards of Disclosure for Mineral Projects* ("**NI 43-101**"). The definitions in NI 43-101 are adopted from those given by the *Canadian Institute of Mining Metallurgy and Petroleum* ("**CIM**").

---

| | |
|:---|:---|
| **Qualified Person** | The term "Qualified Person" refers to an individual who is an engineer or geoscientist with at least five years of experience in mineral exploration, mine development, production activities and project assessment, or any combination thereof, including experience relevant to the subject matter of the project or report and is a member in good standing of a self-regulating organization.<br>|
| **Mineral Resource** | The term "Mineral Resource" refers to a concentration or occurrence of diamonds, natural solid inorganic material, or natural solid fossilized organic material including base and precious metals, coal and industrial minerals in or on the Earth's crust in such form, grade or quality and quantity that there are reasonable prospects for eventual economic extraction. The location, quantity, grade or quality, continuity and other geological characteristics of a Mineral Resource are known, estimated or interpreted from specific geological evidence and knowledge, including sampling.<br>|
| **Inferred Mineral Resource** | The term "Inferred Mineral Resource" refers to that part of a Mineral Resource for which quantity and grade or quality are estimated on the basis of limited geological evidence and limited sampling. Geological evidence is sufficient to imply but not verify geological and grade or quality continuity. The estimate is based on limited information and sampling gathered through appropriate sampling techniques from locations such as outcrops, trenches, pits, workings and drill holes.<br>|
| **Indicated Mineral Resource** | The term "Indicated Mineral Resource" refers to that part of a Mineral Resource for which quantity, grade or quality, densities, shape and physical characteristics can be estimated with sufficient confidence to allow the appropriate application of modifying factors (including, but not limited to, mining, processing, metallurgical, infrastructure, economic, marketing, legal, environment, social and governmental factors) in sufficient detail to support mine planning and evaluation of the economic viability of the deposit. The estimate is based on detailed and reliable exploration and testing information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes that are spaced closely enough to reasonably assume geological and grade or quality continuity between points of observation. An Indicated Mineral Resource has a lower level of confidence than that applying to a "Measured Mineral Resource" and may only be converted to a "Probable Mineral Reserve". |

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*Page 8*

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| | |
|:---|:---|
| **Measured Mineral Resource** | The term "Measured Mineral Resource" refers to that part of a Mineral Resource for which quantity, grade or quality, densities, shape and physical characteristics can be estimated with sufficient confidence to allow the appropriate application of modifying factors (including, but not limited to, mining, processing, metallurgical, infrastructure, economic, marketing, legal, environment, social and governmental factors) in sufficient detail to support detailed mine planning and final evaluation of the economic viability of the deposit. The estimate is based on detailed and reliable exploration, sampling and testing information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes that are spaced closely enough to confirm geological and grade or quality continuity between points of observation. A Measured Mineral Resource has a higher level of confidence than that applying to either an Indicated Mineral Resource or an Inferred Mineral Resource. It may be converted to a "Proven Mineral Reserve" or to a Probable Mineral Reserve.<br>|
| **Mineral Reserve** | The term "Mineral Reserve" refers to that part of a Measured and/or Indicated Mineral Resource which, after the application of all mining factors, result in an estimated tonnage and grade which, in the opinion of the Qualified Person(s) making the estimates, is the basis of an economically viable project after taking account of all relevant modifying factors (including, but not limited to, mining, processing, metallurgical, infrastructure, economic, marketing, legal, environment, social and governmental factors). It includes diluting materials that will be mined in conjunction with the Mineral Reserves and delivered to the treatment plant or equivalent facility, as well as allowances for losses which may occur when the material is mined or extracted, and Mineral Reserves are defined by studies at pre-feasibility or feasibility level, as appropriate. Such studies demonstrate that, at the time of reporting, extraction could reasonably be justified. The term Mineral Reserve does not necessarily signify that extraction facilities are in place or operative or that all governmental approvals have been received. It does, however, signify that there are reasonable expectations of such approvals. |
| <br> **Probable Mineral Reserve** | <br> The term "Probable Mineral Reserve" refers to the economically mineable part of an Indicated Mineral Resource, and in some circumstances, a Measured Mineral Resource. The confidence in the modifying factors (including, but not limited to, mining, processing, metallurgical, infrastructure, economic, marketing, legal, environment, social and governmental factors) applying to a Probable Mineral Reserve is lower than that applying to a "Proven Mineral Reserve". Probable Mineral Reserve estimates must be demonstrated to be economic, at the time of reporting, by at least a pre-feasibility study.<br>|
| **Proven Mineral Reserve** | The term "Proven Mineral Reserve" refers to the economically mineable part of a Measured Mineral Resource. A Proven Mineral Reserve implies that the Qualified Person has the highest degree of confidence in the estimate and the modifying factors (including, but not limited to, mining, processing, metallurgical, infrastructure, economic, marketing, legal, environment, social and governmental factors). Use of the term is restricted to that part of the deposit where production planning is taking place and for which any variation in the estimate would not significantly affect the potential economic viability of the deposit. Proven Mineral Reserve estimates must be demonstrated to be economic, at the time of reporting, by at least a pre-feasibility study. |

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*Page 9*

**Glossary of units**

---

| | |
|:---|:---|
| &nbsp;&nbsp; **Unit** | **Abbreviation** |
| &nbsp;&nbsp; centimetre(s) | cm |
| &nbsp;&nbsp; cubic metre(s) | m<sup>3</sup> |
| &nbsp;&nbsp; day | d |
| &nbsp;&nbsp; degree(s) | ° |
| &nbsp;&nbsp; foot/feet (as context requires) | ft. |
| &nbsp;&nbsp; gram(s) | g |
| &nbsp;&nbsp; grams per tonne | g/t |
| &nbsp;&nbsp; hectare(s) | ha |
| &nbsp;&nbsp; kilogram(s) | kg |
| &nbsp;&nbsp; kilometre(s) | km |
| &nbsp;&nbsp; metre(s) | m |
| &nbsp;&nbsp; micrometre(s) | µm |
| &nbsp;&nbsp; million ounces | Moz. |
| &nbsp;&nbsp; million cubic metres | Mm<sup>3</sup> |
| &nbsp;&nbsp; million tonnes | Mt |
| &nbsp;&nbsp; ounce(s) | oz. |
| &nbsp;&nbsp; ounce(s) per tonne | oz./t |
| &nbsp;&nbsp; parts per million | ppm |
| &nbsp;&nbsp; square kilometre(s) | km<sup>2</sup> |
| &nbsp;&nbsp; square metre(s) | m<sup>2</sup> |
| &nbsp;&nbsp; tonne(s) | t |
| &nbsp;&nbsp; tonnes per cubic metre | t/m<sup>3</sup> |

---

**Glossary of elements**

---

| | |
|:---|:---|
| &nbsp;&nbsp; **Element** | **Abbreviation** |
| &nbsp;&nbsp; copper | Cu |
| &nbsp;&nbsp; gold | Au |
| &nbsp;&nbsp; silver | Ag |

---

**Glossary of abbreviations and acronyms**

---

| | |
|:---|:---|
| All-In Sustaining Costs | AISC |
| Canadian Environmental Assessment Act | CEAA |
| Carbon-in-Pulp | CIP |
| Cut-off Grade  | COG |
| Environmental Impact Statement | EIS |
| Engineering, Procurement and Construction Management | EPCM |
| General and Administrative | G&A |
| Internal Rate of Return | IRR |
| Life-of-Mine. | LOM |
| National Instrument 43-101 | NI 43-101 |
| Net Present Value | NPV |
| Net Smelter Return | NSR |
| Non-Acid Generating  | NAG |
| Potentially Acid Generating  | PAG |
| Pre-Feasibility Study | PFS |
| Preliminary Economic Assessment | PEA |
| Quality Assurance | QA |
| Quality Control. | QC |
| Waste Storage Facility | WSF |

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*Page 10*

**Cautionary note to US investors**

The technical information contained herein has been prepared in accordance with the requirements of the securities laws in effect in Canada, which differ from the requirements of the United States securities laws applicable to U.S. companies. 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 or incorporated by reference in this AIF 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.

*Page 11*

**About First Mining**

First Mining Gold Corp. is a Canadian-focused gold exploration and development company that was created in 2015 by Mr. Keith Neumeyer, founding President and CEO of First Majestic Silver Corp. and a co-founder of First Quantum Minerals Ltd.

We are advancing a portfolio of gold projects in Canada, with a focus on the Springpole Gold Project (the "**Springpole Project**" or "**Springpole**") in northwestern Ontario and the Duparquet Gold Project (the "**Duparquet Project**" or "**Duparquet**") in Quebec.

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| | |
|:---|:---|
| We are publicly listed on the Toronto Stock Exchange ("**TSX**") under the trading symbol "FF", in the US on the OTC-QX under the trading symbol "FFMGF", and on the Frankfurt Stock Exchange under the symbol "FMG". Our management team has decades of experience in evaluating, exploring and developing mineral assets.<br>| &nbsp;&nbsp; **First Mining Gold Corp.**<br> (TSX: FF; OTC-QX: FFMG; Frankfurt: FMG)<br>*<u>Head Office:</u> <u>Registered & Records Office:</u>*<br>First Mining Gold Corp. Bennett Jones LLP<br> Suite 2070 Suite 2500, Park Place<br> 1188 West Georgia Street 666 Burrard Street<br> Vancouver, BC V6E 4A2 Vancouver, BC V6C 2X8<br> Canada Canada<br> Telephone: 604.639.8848 |

---

**Vision and strategy**

We hold a portfolio of seven (7) mineral assets in Canada, with a focus on gold, along with a number of marketable securities. Our vision is to advance our material assets toward a construction decision and, ultimately, to production.

To achieve this goal, our strategy is to:

· advance the Springpole Project to a construction decision by taking Springpole through the environmental assessment process and completing a feasibility study;

· enhance the Springpole Project by exploring the consolidated mineral tenure in the prospective Birch-Uchi greenstone belt;

· advance the Duparquet Project by completing environmental baseline, engineering and economic studies to scope a project that demonstrates robust economic return and addresses the environmental legacy of the past producing mine;

· de-risk our other material assets through exploration, drilling, calculating resource estimates, conducting engineering, environmental and economic studies, advancing the projects through permitting processes and other activities;

· surface value from our portfolio of assets by finding partners to help advance them by committing financial and human capital to advance and de-risk them, and ultimately monetizing those projects to provide funding to advance our material assets

· utilize our management team's expertise to successfully permit, finance and construct producing mines at our material assets, either on our own or with financial or operating partners; and

· continue to grow our asset base by acquiring additional mineral assets.

*Page 12*

We may acquire additional mineral assets in the future. We consider the following criteria when assessing potential acquisition targets:

· *<u>Quality of asset</u>* - we consider factors such as economics, grade, size and exploration potential, metallurgy and mineability (eg. strip ratio) when assessing a new mineral property.

· *<u>Location</u>* - we are focused on assets located in politically stable and mining friendly jurisdictions.

· *<u>Compatibility with our existing asset</u> base -* we consider whether a project can improve the economic or strategic value of our existing projects.

· *<u>Availability of infrastructure</u>* - we consider whether the project has good access to power, water, highways, ports and a labour force.

· *<u>Holding costs</u>* - we take into account the holding costs (eg. assessment work requirements) and annual taxes payable on the mineral claims when deciding whether to acquire a new mineral property.

· *<u>Valuation</u>* - we look for attractively valued resources to add to our portfolio.

**General overview of our business**

We are in the exploration and development stage, and we do not currently own any producing properties. Consequently, we have no current operating income or cash flow from our properties, nor have we had any income from operations in the past three financial years. At this time, our operations are primarily funded by equity and other financings.

An investment in First Mining is speculative and involves a high degree of risk due to the nature of our business and the present stage of exploration of our mineral properties. We encourage readers to carefully read this AIF in its entirety, including the section "*Risks that can affect our business"* starting on page 96 which discusses certain material risks related to our business, operations and prospects.

**Principal products**

We are currently in the exploration and development stage and do not produce or sell mineral products. Our principal focus is on gold.

**Specialized skills and knowledge**

Our business requires individuals with specialized skills and knowledge in the areas of geology, drilling, geophysics, geochemistry, metallurgy, engineering and mineral processing, implementation of exploration programs, mine engineering, environmental assessment and mine permitting, acquisitions, capital raising, mine finance, accounting, and environmental compliance. In order to attract and retain personnel with such skills and knowledge, we seek to maintain competitive remuneration and compensation packages and to provide a work environment that allows our team members to grow professionally and personally. To date, we have been able to locate and retain such professionals in Canada and in the US, and we believe we will be able to continue to do so.

**Competitive conditions**

The precious metal mineral exploration and mining industry is very competitive in all phases of exploration and development, and we compete with numerous other companies and individuals in the search for, and the acquisition and development of, attractive precious metal mineral properties.

*Page 13*

As a result of this competition, we may at times compete with other companies that have greater financial resources and technical facilities, and we may compete with other exploration and mining companies for the procurement of equipment and for the availability of skilled labour, which means that there may be times where we are unable to attract or retain qualified personnel. As well, we cannot assure you that additional capital or other types of financing will be available if needed or that, if available, the terms of such financing will be favourable to us.

**Cycles**

The mining business is subject to commodity price cycles. The financial markets for mining in general and mineral exploration and development in particular, continued to be weak through to the end of 2022 and, as a result of the COVID-19 crisis and the more recent crisis and hostilities in the Ukraine, markets are experiencing extreme volatility as of the date of this AIF and has led to increases in the rate of inflation which has, in turn, led to increases in interest rates. The long-term effects of these crises on financial markets and the economy in general is at present unknown. If the global economy stalls and commodity prices decline as a consequence, a continuing period of lower prices and/or higher costs could significantly affect the economic potential of many of our current properties and may result in First Mining ceasing work on, or dropping its interest in, some or all of our properties. As we do not currently undertake production activities, our ability to fund ongoing exploration is affected by the availability of financing (and particularly equity financing) which, in turn, is affected by the strength of the economy, commodity prices, interest rates, inflation and other general economic factors. <u>Global economies are currently experiencing high levels of inflation. In response to inflation, governments have and may continue to raise interest rates. Our exposure to changes in interest rates results from investing activities undertaken to manage our liquidity and capital requirements. In addition, the increase in rates may impact the cost of the Company to advance exploration and development. There can be no assurances that interest rates will not continue to increase, perhaps materially, and if they do, they may have a material adverse effect on our business and financial position.</u>

In addition, our mineral exploration activities may be subject to seasonality due to adverse weather conditions at our project sites. Drilling and other exploration activities on our properties may be restricted during the winter season as a result of various weather-related factors including, without limitation, inclement weather, snow covering the ground, frozen ground and restricted access due to snow, ice or other weather-related factors, all of which may exacerbated by climate change. In addition, access to the Springpole site for bulk material haulage is by a winter ice road. The quality, functionality and duration of this access depends on temperatures being cold enough for a sufficient period of time, the length of which is variable and subject to the impacts of climate change which in general has led to shorter and milder winters. Failure to build or maintain winter access can result in delays in our work programs and higher operating costs.

**Economic dependence**

Our business is dependent on the acquisition, exploration, development and operation of mineral properties. We are not dependent on any contract to sell our products or services or to purchase the major part of our requirements for goods, services or raw materials, or on any franchise or licence or other agreement to use a patent, formula, trade secret, process or trade name upon which our business depends.

**Employees**

As of the date of this AIF, we have 33 full-time employees, and we also utilize a variable number of fixed-term employees, consultants and contractors as needed to carry on many of our activities and, in particular, to supervise and carry out the work programs at our mineral projects.

**Environmental protection**

We are subject to the laws and regulations relating to environmental matters in all jurisdictions in which we operate, including provisions relating to property reclamation, discharge of hazardous materials and other matters, and we conduct our mineral exploration activities in compliance with applicable environmental protection legislation.

*Page 14*

We may be held liable should environmental problems be discovered that were caused by former owners and operators of our mineral projects. Specifically, at the Duparquet Project, we are aware of certain legacy environmental issues relating to the past operation of the Beattie and Donchester mines in the 1930s to 1950s, including the presence of 3,500 tonnes of arsenic trioxide roaster dust that has been stored on the site since the mine ceased operations. We are proactively working with the relevant ministries in Quebec to develop a plan to address these legacy environmental issues at Duparquet through the development of a new mine.

New environmental laws and regulations, amendments to existing laws and regulations, or more stringent implementation of existing laws and regulations could have a material adverse effect on us, both financially and operationally, by potentially increasing capital and/or operating costs and delaying or preventing the development of our mineral properties.

We believe that the policies and procedures implemented by our executive management team provide a safe working environment for all our employees, consultants, contractors, stakeholders and rights holders. We recognize that safety and environmental due diligence are significant contributors to the long-term sustainability of our operations and support our objective of projects being completed in a cost effective and timely manner with excellent quality control.

**Bankruptcy and similar procedures**

There are no bankruptcies, receivership or similar proceedings against us, nor are we aware of any such pending or threatened proceedings. We have not commenced any bankruptcy, receivership or similar proceedings during our history.

*Page 15*

**Three-year history**

**2020**

*<u>February</u>*

· We announced the resignation of Dr. Christopher Osterman from our board of directors (the "**Board** ").

· We announced the closing of the first tranche of a non-brokered private placement offering, raising aggregate gross proceeds of $2.5 million (the "**2020 Tranche 1 Offering** "), pursuant to which we issued 10,000,000 FT Units at a price of $0.25 per FT Unit. Each FT Unit consists of one Flow-Through Share and one-half of one Warrant. Each whole Warrant entitled the holder to acquire one common share of First Mining at a price of $0.33 and expired on February 14, 2023. The gross proceeds raised from the sale of the FT Units under the 2020 Tranche 1 Offering were used by First Mining for expenditures that qualified as "Canadian Development Expenses" ()"**CEE**") as defined in the *Income Tax Act* (Canada) on our Springpole Project. Such expenditures were renounced to subscribers effective no later than December 31, 2020.

· We announced the closing of the second tranche of a non-brokered private placement offering, raising aggregate gross proceeds of approximately $5.1 million (the "**2020 Tranche 2 Offering** "), pursuant to which we issued 23,328,818 Units at a price of $0.22 per Unit. Each Unit consists of one Unit Share and one-half of one Warrant. Each whole Warrant entitled the holder to acquire one common share of First Mining at a price of $0.33 and expired on February 28, 2023. The net proceeds raised from the sale of the Units under the 2020 Tranche 2 Offering were used by First Mining for development and permitting activities at our Canadian gold projects, as well as for general working capital purposes.

*<u>March</u>*

· We announced the closing of the third and final tranche of a non-brokered private placement offering, raising aggregate gross proceeds of approximately $0.9 million (the "**2020 Tranche 3 Offering** "), pursuant to which we issued 4,091,500 Units at a price of $0.22 per Unit. Each Unit consists of one Unit Share and one-half of one Warrant. Each whole Warrant entitled the holder to acquire one common share of First Mining at a price of $0.33 and expired on March 6, 2023. In total, we raised gross proceeds of approximately $8.5 million across the 2020 Tranche 1 Offering, the 2020 Tranche 2 Offering and the 2020 Tranche 3 Offering.

· We announced that we had entered into a definitive earn-in agreement (the "**Pickle Crow Earn-In Agreement**") with Auteco Minerals Ltd. ()"**Auteco**") pursuant to which Auteco, through a subsidiary, can earn up to an 80% interest in PC Gold Inc. ()"**PC Gold** "), a wholly-owned subsidiary of First Mining at that time, which owns the Pickle Crow gold project located in Ontario (the "**Pickle Crow Project** "). For a summary of the key terms of the Pickle Crow Earn-In Agreement, see the section in this AIF entitled "*Investor information - Material contracts - Pickle Crow Earn-In Agreement* ".

*<u>April</u>*

· We announced the appointments of Mr. Richard Lock and Ms. Aoife McGrath to our Board, and the concurrent retirement of Dr. David Shaw and Mr. Michel Bouchard from the Board.

*Page 16*

*<u>June</u>*

· We announced that we had entered into a definitive share purchase agreement (the "**Treasury Metals SPA**") with Treasury Metals Inc. ()"**Treasury Metals**") in respect of the sale of all the issued and outstanding shares of Tamaka Gold Corporation ()"**Tamaka** "), a wholly-owned subsidiary of First Mining and owner of the Goldlund gold project located in Ontario (the "**Goldlund Project** "), to Treasury Metals (the "**Treasury Metals Transaction** "). In exchange for acquiring all of the issued and outstanding shares of Tamaka, Treasury Metals issued First Mining 130,000,000 common shares (the "**TML Shares**") and 35,000,000 warrants (the "**TML Warrants**") with an exercise price of $0.50 and a three-year term. First Mining was also granted a 1.5% NSR royalty on the Goldlund Project, one third (0.5%) of which can be bought back by Treasury Metals at any time in exchange for a $5,000,000 cash payment. Upon receipt of a mining lease to extract material from an open pit mine at the Goldlund Project, Treasury Metals will pay First Mining $2,500,000, and it will pay an additional $2,500,000 to First Mining upon 300,000 tonnes or ore being extracted from the Goldlund Project.

· First Mining announced that it, along with Gold Canyon Resources Inc. ()"**Gold Canyon** "), a wholly-owned subsidiary of First Mining, had entered into a silver purchase agreement (the "**Silver Stream Agreement**") with First Majestic Silver Corp. ()"**First Majestic**") in relation to our Springpole gold project located in Ontario (the "**Springpole Project** "), pursuant to which First Majestic has agreed to pay First Mining total consideration of US$22.5 million for the right to purchase 50% of the payable silver produced from Springpole for the life of the project (the "**Silver Stream** "). At the time of execution of the Silver Stream Agreement, two of our directors, Keith Neumeyer and Raymond Polman, were officers and/or directors of First Majestic and, accordingly, abstained on voting on the approval of the Silver Stream Agreement. For a summary of the key terms of the Silver Stream Agreement, see the section in this AIF entitled "*Investor information - Material contracts - Silver Stream Agreement* ".

*<u>July</u>*

· We announced that we had closed the Silver Stream transaction with First Majestic.

*<u>August</u>*

· We announced that we had closed the Treasury Metals Transaction, which resulted in the combination of the Goldlund Project with Treasury Metals' adjacent Goliath gold project to create a district-scale, multi-million-ounce gold project in a favourable mining jurisdiction. Upon closing the Treasury Metals Transaction, First Mining and Treasury Metals entered into an investor rights agreement (the "**TML Investor Rights Agreement**") pursuant to which First Mining was entitled to nominate three directors of the Treasury Metals' board following closing of the transaction. The TML Investor Rights Agreement specifies that, if after closing, our share position in Treasury Metals is reduced to between 10% and 19.9%, we would have the right to nominate two directors to the Treasury Metals' board and, if our share position is reduced to between 5% and 9.9%, we would have the right to nominate only one director to the Treasury Metals' board. Subsequent to the Treasury Metals Transaction, Treasury Metals completed a 3:1 share consolidation.

· We announced the closing of an over-subscribed bought deal offering (the "**Bought Deal Financing**") pursuant to which First Mining issued 57,500,000 Units (including 7,500,000 Units issued in connection with the exercise in full of the over-allotment option that had been granted to the Underwriters (as defined below) in connection with the Bought Deal Financing) at a price of $0.50 per Unit for aggregate gross proceeds of $28,750,000. Each Unit consists of one Unit Share and one-half of one Warrant. Each whole Warrant entitles the holder to acquire one common share of First Mining at a price of $0.70 and expired on August 26, 2022. The Units issued under the Bought Deal Financing were offered by way of a prospectus supplement and were sold through a syndicate of underwriters led by Cormark Securities Inc. and including BMO Nesbitt Burns Inc. and H.C. Wainwright & Co., LLC (collectively, the "**Underwriters** "). The net proceeds raised from the sale of the Units under the Bought Deal Financing are being used by First Mining for exploration, development and permitting activities at our Canadian gold projects, potential acquisitions, as well as for working capital and general corporate purposes.

*Page 17*

*<u>November</u>*

· We announced the appointment of Ms. Leanne Hall to our Board.

December

· We announced that we had completed a transaction with Metalore Resources Limited ()"**Metalore**") pursuant to which we acquired from Metalore the East Cedartee claims which are located between our Cameron claim block (which includes the "Cameron Gold Deposit" that hosts the current Mineral Resource on the Cameron property) and our West Cedartree claim block (which includes the Dubenski and Dogpaw deposits on the Cameron property). The acquisition of the East Cedartree claims consolidates First Mining's land holdings at the Cameron gold project located in Ontario (the "**Cameron Project**") into a single contiguous block and adds a further 3,200 hectares to the 49,600 hectares that we already hold in the district. See the section in this AIF entitled "*Cameron - Recent developments*" for further details about this transaction.

**2021**

*<u>January</u>*

· We announced the positive results of a Pre-Feasibility Study (the "**Springpole PFS**") that had been completed for our Springpole Project which supports a 30,000 tonnes-per-day open pit mining operation over an 11.3 year mine life. Highlights of the Springpole PFS are as follows:

o US$1.5 billion pre-tax net present value at a 5% discount rate ()"**NPV<sub>5%</sub>**") at US$1,600/oz gold ()"**Au** "), increasing to US$1.9 billion at US$1,800/oz Au;

o US$995 million after-tax NPV<sub>5%</sub> at US$1,600/oz Au, increasing to US$1.3 billion at US$1,800/oz Au;

o 36.4% pre-tax internal rate of return ()"**IRR** "); 29.4% after-tax IRR at US$1,600/oz Au;

o Life of mine ()"**LOM**") of 11.3 years, with primary mining and processing during the first 9 years and processing lower-grade stockpiles for the balance of the mine life;

o After-tax payback of 2.4 years;

o Declaration of Mineral Reserves: Proven and Probable Mineral Reserves of 3.8 Moz Au, 20.5 Moz silver ()"**Ag**") (121.6 Mt at 0.97 g/t Au, 5.23 g/t Ag);

o Initial capital costs estimated at US$718 million, sustaining capital costs estimated at US$55 million, plus US$29 million in closure costs;

o Average annual payable gold production of 335 koz (Years 1 to 9); 287 koz (LOM);

o Total cash costs of US$558/oz (Years 1 to 9); and US$618/oz (LOM)<sup>(1)</sup>; and

o All-in sustaining costs ()"**AISC**") of US$577/oz (Years 1 to 9), and AISC US$645 (LOM) <sup>(2)</sup>

---

| | |
|:---|:---|
|  | *<u>Notes:</u>*<br>*Base case parameters for the Springpole PFS assume a gold price of US$1,600/oz and a silver price of US$20, and an exchange rate (C$ to US$) of 0.75. All currencies are reported in U.S. dollars unless otherwise specified. NPV calculated as of the commencement of construction and excludes all pre-construction costs.* |
| *(1)*  | *Total cash costs consist of mining costs, processing costs, mine-level general and administrative ("G&A") costs, treatment and refining charges and royalties. It does not include Company level G&A. Please see "Non-IFRS Financial Measures" at the beginning of this AIF.* |
| *(2)*  | *AISC consists of total cash costs plus sustaining and closure costs. Please see "Non-IFRS Financial Measures" at the beginning of this AIF.* |

---

See the section of this AIF entitled *"Material Properties - Springpole"* for further details of the Springpole PFS.

*Page 18*

*<u>March</u>*

· We announced that we had entered into a three-year option agreement with Exiro Minerals Corp. ()"**Exiro**") pursuant to which we may earn a 100% interest in Exiro's Swain Post property in northwestern Ontario through future cash and share payments to Exiro during the term of the option, and by completing all assessment work requirements on the property during the option term. The Swain Post property comprises 237 single cell mining claims covering nearly 5,000 hectares. It is located approximately 20 km west of the Springpole Project and approximately 5 km west of the western-most property boundary at Springpole.

· We filed a technical report for the Springpole PFS that was prepared for us in accordance with NI 43-101 by AGP Mining Consultants Inc. The technical report, which is entitled "*NI 43-101 Technical Report and Pre-Feasibility Study on the Springpole Gold Project, Ontario, Canada*" (report date: February 26, 2021; effective date: January 20, 2021), can be found under our SEDAR profile at <u>www.sedar.com</u>, and on our website at <u>www.firstmininggold.com</u>. See the section of this AIF entitled *"Material Properties - Springpole"* for further details of the technical report for the Springpole PFS.

· We announced that Auteco had completed its $5 million expenditure requirement in respect of Stage 1 of its earn-in to PC Gold pursuant to the Pickle Crow Earn-In Agreement.

*<u>April</u>*

· First Mining announced that it, along with Coastal Gold Corp. ()"**Coastal Gold** "), a wholly-owned subsidiary of First Mining, had entered into a definitive earn-in agreement (the "**Hope Brook Earn-In Agreement**") with Big Ridge Gold Corp. ()"**Big Ridge**") pursuant to which Big Ridge may earn up to an 80% interest in our Hope Brook gold project located in Newfoundland (the "**Hope Brook Project**") through a two-stage earn-in over a five year period (the "**Big Ridge Transaction** "). For a summary of the key terms of the Hope Brook Earn-In Agreement, see the section in this AIF entitled "*Investor information - Material contracts - Hope Brook Earn-In Agreement".* 

· We announced that we had entered into a definitive earn-in agreement with Whitefish Exploration Inc. ()"**Whitefish**") pursuant to which we may earn up to a 100% interest in Whitefish's Swain Lake property ()"**Swain Property**") located in northwestern Ontario through a two-stage earn-in process. We have a three-year option to earn an initial 70% interest in the Swain Property by incurring $500,000 in qualifying expenditures, making cash payments totalling $200,000 and share payments totalling $425,000. Upon completing the first stage of the earn-in we will have a two-year option to acquire the remaining 30% interest in the Swain Property by making a $1 million cash payment and a $1 million share payment to Whitefish. The Company will hold any interest it acquires in the Swain Property through its wholly-owned subsidiary Gold Canyon and in the event only the first stage of the earn-in is completed, Gold Canyon and Whitefish will enter into a joint venture agreement with respect to the Swain Property.

*Page 19*

*<u>June</u>*

· We announced the closing of the Big Ridge Transaction.

· We announced that Auteco had issued 100,000,000 of its common shares to us and had accordingly completed the first stage of its earn-in requirements with respect to Pickle Crow. As a result, Auteco earned a 51% interest in PC Gold, the Company that owns Pickle Crow (and that was a wholly-owned subsidiary of First Mining up until completion by Auteco of the stage 1 earn-in). In connection with Auteco earning a 51% interest in PC Gold, the Company and Auteco entered into a joint venture shareholders agreement in respect of PC Gold. For further details, see the section in this AIF entitled "*Investor Information - Material contracts - Pickle Crow Earn-In Agreement* ".

*<u>July</u>*

· In connection with the Treasury Metals Transaction, we distributed an aggregate of 23,333,333 TML Shares and 11,666,666 TML Warrants of Treasury Metals to our shareholders (the "**Treasury Metals Distribution**") on July 15, 2021. Immediately upon completion of the Treasury Metals Distribution, the Company held 19,999,999 TML Shares, or approximately 15.36% of Treasury Metals' common shares and no TML Warrants. Accordingly, pursuant to the terms of the TML Investor Rights Agreement, we currently have the right to nominate two directors to the Treasury Metals' board.

· We announced that we had entered into a mineral exploration agreement with Animakee Wa Whing #37 First Nation regarding, among other things, the protocol for communication and engagement between the parties in relation to the Company's planned activities at the Cameron Project.

August

· We announced that Auteco had fulfilled the stage 2 earn-in requirements with respect to the Pickle Crow Project by incurring $5 million in qualifying expenditures, paying $1 million in cash to the Company and granting the Company a 2% NSR royalty on Pickle Crow, half of which can be bought back by Auteco for US$2.5 million. As a result, Auteco increased its ownership in PC Gold from 51% to 70%. For further details, see the section in this AIF entitled "*Investor Information - Material contracts - Pickle Crow Earn-In Agreement* ".

*<u>September</u>*

· We announced the filing of a short form base shelf prospectus (the "**2021 Shelf Prospectus**") with the securities commissions in each of the provinces of Canada, and a corresponding registration statement on Form F-10 (the "**2021 Registration Statement**") with the SEC under the U.S./Canada Multijurisdictional Disclosure System. The 2021 Shelf Prospectus and corresponding 2021 Registration Statement will allow us to undertake offerings of common shares (including common shares issued on a "flow-through" basis), preferred shares, warrants, subscription receipts and units, or any combination thereof, up to an aggregate total of $100 million from time to time during the 25-month period that the 2021 Shelf Prospectus remains effective.

· We announced that we had entered into a definitive earn-in agreement with ALX Resources Corp. ()"**ALX**") pursuant to which we, through our wholly-owned subsidiary Gold Canyon, can earn up to a 100% interest in ALX's Vixen North, Vixen South and Vixen West properties (together, the "**Vixen Properties**") which are located near our Springpole Project. We have a three-year option to earn an initial 70% interest in the Vixen Properties by incurring $500,000 in qualifying expenditures, making cash payments totalling $550,000 and share payments totalling $400,000. Upon completing the first stage of the earn-in, we will have a two-year option to acquire the remaining 30% interest in the Vixen Properties by making a $500,000 cash payment and a $500,000 share payment to ALX. The Company will hold any interest it acquires in the Vixen Properties through its wholly-owned subsidiary Gold Canyon and, in the event only the first stage of the earn-in is completed, Gold Canyon and ALX will enter into a joint venture agreement with respect to the Vixen Properties.

· We announced we had acquired additional claims covering approximately 6,000 hectares within the Birch-Uchi Greenstone Belt. The claims are located adjacent to the Swain Property in respect of which we have a three-year option agreement with Whitefish.

*Page 20*

*<u>October</u>*

· We announced that we had entered into a definitive earn-in agreement with Pelangio Exploration Inc. ()"**Pelangio**") pursuant to which we, through our wholly-owned subsidiary Gold Canyon, can earn up to an 80% interest in Pelangio's Birch Lake and Birch Lake West properties (together, the "**Birch Properties**") which are located to the northeast of our Springpole Project. We have a four-year option to earn an initial 51% interest in the Birch Properties by incurring $1,750,000 in qualifying expenditures, making cash payments totalling $350,000 and issuing 1,300,000 shares to Pelangio. Upon completing the first stage of the earn-in we will have a two-year option to acquire an additional 29% interest in the Birch Properties by incurring an additional $1,750,000 in qualifying expenditures and making a $400,000 cash payment to Pelangio. The Company will hold any interest it acquires in the Birch Properties through its wholly-owned subsidiary Gold Canyon and, in the event only the first stage of the earn-in is completed, Gold Canyon and Pelangio will enter into a joint venture agreement with respect to the Birch Properties.

· We announced the appointment of Mr. James Maxwell as our Vice President, Exploration.

*<u>November</u>*

· We announced that we had received a Notice of Approval from the Ontario Ministry of the Environment, Conservation and Parks (the "**Ministry**") in regards to the Environmental Assessment Terms of Reference for our Springpole Project. Receipt of the Notice of Approval marks the formal commencement of the provincial environmental assessment process.

**2022**

*<u>January</u>*

· We provided an update on the ongoing technical work at the Springpole Project to further optimize the development plan for Springpole and to further define the project scope for the environmental assessment process and into the feasibility study process. Highlights of such ongoing technical work included:

o In 2021, taking 2.4 tonnes of metallurgical samples collected from 10 drill holes to form three production composites that underwent advanced metallurgical testing, as well as 10 variability composites. The initial results supported the test work and assumptions that were used in the Springpole Pre-Feasibility Study.

o Filtration test work to optimize the size of the filter plant.

o An analysis of potential greenhouse gas emissions from the Springpole Project and determining that opportunities exist to reduce such greenhouse gas emissions.

o Our commissioning of SLR Consulting to complete an initial scoping study of the opportunities to incorporate renewable power generation into the project development plan at Springpole. The study concluded that wind and solar were both viable potential supplemental power sources and warranted further study.

o During 2021 our environmental field work involved a comprehensive program to supplement the baseline data that had been collected in previous years.

*Page 21*

---

| | |
|:---|:---|
| ·  | We announced that Mr. Kenneth Engquist, our Chief Operating Officer, had resigned to pursue another opportunity in the mining industry. |
| ·  | We were made aware of a Statement of Claim filed in the Ontario Superior Court of Justice on January 7, 2022 by Cat Lake First Nation and certain other parties (collectively, the "**Plaintiffs**") against the Crown (the "**Cat Lake Claim**"). Amongst other things, the Plaintiffs are seeking an order from the Court that all mineral tenure on lands that the Plaintiffs claim they have exclusive aboriginal title be returned to the Plaintiffs and that all mining permits, leases, license and patents in respect of such lands be cancelled. The Springpole Project is located on the lands subject to this claim and First Mining is continuing to monitor the claim. |
| *<u>February</u>* | *<u>February</u>* |
| ·  | We announced that we had acquired 286,904 additional common shares of Beattie Gold Mines Ltd. ("**Beattie**"), a private company incorporated under the *Business Corporations Act* (Ontario) which owns the mining concession that forms the largest part of the Duparquet gold project located in Québec (the "**Duparquet Project**"), and thereby increased our ownership interest in Beattie from 10% to 25.3%. The purchase price paid for these additional common shares comprised of a $1,272,824 cash payment and the issuance of 7,636,944 First Mining Shares. |

---

*<u>March</u>*

· We announced the appointment of Mr. Jeffery Reinson as our Chief Operating Officer, effective March 28, 2022.

*<u>June</u>*

· We announced the publication of our inaugural Annual ESG Report (the "**ESG Report** "), which included a comprehensive review of our ESG commitments, practices, and performance for the 2021 year. Highlights of the ESG Report included:

o We conducted an analysis of potential greenhouse gas (GHG) emissions from the Springpole Project and developed mitigation plans to reduce such GHG emissions, including tying the Springpole Project to the electrical power grid.

o We provided $51,000 in sponsorship and investments in 2021, including investments of $33,500 to support community well-being and $17,500 to support traditional land use.

o We provided $500,000 in capacity support funding for impacted Indigenous Communities and $100,000 funding for Traditional Knowledge studies.

o We completed a comprehensive assessment of cultural heritage resources present in the Springpole Project area through inclusive Indigenous engagement.

o We became a founding partner in the Sioux Lookout Mining Centre of Excellence with a first-year goal to provide basic mining training to 150 largely Indigenous youth.

o We reiterated our commitment to increasing diversity through hiring more female and Indigenous employees.

*Page 22*

*<u>July</u>*

· We announced that we had made an offer to acquire all of the issued and outstanding common shares of Beattie, which owns the mining concession that forms the largest part of the Duparquet Project (the "**Beattie Offer** "), following our February 2022 announcement where our ownership interest in Beattie increased from 10% to 25.3%. The total consideration of the Beattie Offer was $6,227,176 in cash and the issuance of 39,127,280 First Mining Shares.

· Concurrent with the Beattie Offer, we announced that we had entered into share purchase agreements to acquire all of the issued and outstanding shares of 2588111 Manitoba Ltd. ()"**258 Manitoba**") and 2699681 Canada Ltd. ()"**269 Canada**") (together, the "**Concurrent Transaction** s). 258 Manitoba is a private company that owns the mineral rights to mining claims that make up the former Donchester mining concession and Dumico property that also form a part of the Duparquet Gold Project. 269 Canada is a private company that owns in whole or in part, the surface rights to the Beattie, Donchester and Dumico Properties. The total consideration payable under the Concurrent Transactions was $2,500,000 in cash and the issuance of 20,000,000 First Mining Shares. In aggregate, the total consideration of the Beattie Offer and the Concurrent Transactions was $8,727,177 in cash and 69,127,820 First Mining Shares.

*<u>August</u>*

· We announced that Mr. Andrew Marshall, our Chief Financial Officer, had resigned to pursue another opportunity in the mining industry, and we announced the appointment of Lisa M. Peterson as our new Chief Financial Officer, effective September 16, 2022.

· We announced the closing of the first tranche of a non-brokered private placement offering, raising aggregate gross proceeds of $4.7 million (the "**2022 Tranche 1 Offering** "), pursuant to which we issued 15,749,868 Flow-Through Shares at a price of $0.30 per Flow-Through Share. The gross proceeds raised from the sale of the Flow-Through Shares under the 2022 Tranche 1 Offering will be used by First Mining to fund exploration programs that qualify as CEE and "flow-through mining expenditures", as defined in the *Income Tax Act* (Canada).

*<u>September</u>*

· We announced the closing of the final tranche of a non-brokered private placement offering, raising aggregate gross proceeds of approximately $0.6 million (the "**2022 Tranche 2 Offering** "), pursuant to which we issued 2,000,000 Flow-Through Shares at a price of $0.30 per Share. The net proceeds raised from the sale of the Flow-Through Shares under the 2022 Tranche 2 Offering will be used by First Mining to fund exploration programs that qualify as CEE and "flow-through mining expenditures", as defined in the *Income Tax Act* (Canada). In total, we raised gross proceeds of approximately $5.3 million from the 2022 Tranche 1 Offering and the 2022 Tranche 2 Offering.

· We announced the closing of the Beattie Offer and the completion of the Concurrent Transactions, resulting in us acquiring 100% ownership of the Duparquet Project. In aggregate, the total consideration paid by us in connection with the Beattie Offer and the Concurrent Transactions was $8,727,177 in cash and 71,532,516 First Mining Shares, and the total transaction value was approximately $24 million.

· We announced that Big Ridge had completed the Stage 1 earn-in requirements (the "**Hope Brook Stage 1 Earn-In**") with respect to our Hope Brook Project, as set out in the Hope Brook Earn-In Agreement announced in April 2021. As required under the agreement, Big Ridge has (i) incurred $10 million in qualifying exploration expenditures at the Hope Brook Project, (ii) issued 15,000,000 common shares of Big Ridge to First Mining, and (iii) granted to First Mining a 1.5% NSR royalty on the Hope Brook Project, 0.5% of which can be bought back by Big Ridge for $2 million cash. With the completion of the Hope Brook Stage 1 Earn-In, Big Ridge earned a 51% ownership interest in the Hope Brook Project and has until June 8, 2026 to acquire an additional 29% direct interest in the project.

*Page 23*

*<u>October</u>*

· We filed a technical report for the Duparquet Project that was prepared for First Mining in accordance with NI 43-101 by InnovExplo Inc. The technical report, which is entitled "*NI 43-101 Technical Report and Mineral Resource Estimate Update for the Duparquet Project, Quebec, Canada*" (report date: October 6, 2022; effective date: September 12, 2022), can be found under our SEDAR profile at <u>www.sedar.com</u>, and on our website at <u>www.firstmininggold.com</u>. See the section of this AIF entitled *"Material Properties - Duparquet"* for further details of the technical report for the Duparquet Project.

*<u>December</u>*

· We announced that we had entered into a definitive royalty purchase agreement with an affiliate of Sprott Resource Streaming and Resource Corp. ()"**Sprott**") pursuant to which we sold our 1.5% NSR royalty on the Goldlund Project (the "**Goldlund Royalty**") to Sprott for total cash consideration of approximately $9.5 million (the "**Goldlund Royalty Transaction** ").

**Recent developments**

**2023**

*<u>January</u>*

· We provided an update on exploration activities at our Birch-Uchi Greenstone Belt ()"**BUGB**") Project located in the Red Lake Mining District of Ontario, Canada, near the Springpole Project. Highlights of such exploration activities included:

o We commenced a district district-wide exploration program to unlock the exploration potential on the +70,000-hectare property position located in the underexplored BUGB.

o District rock sampling programs returned significant gold results across multiple centres of mineralization over the project area.

o Soil geochemical gap analysis, infill and pioneering surveys were completed over conducive terrains, where an additional +700 samples were collected.

o We completed a five drill hole campaign, totalling 1,560 m at the Swain Property, with initial results indicative of favourable host lithologies, zones of meaningful width, and increased mineralization around key structures.

· We announced that through our wholly-owned subsidiary, Duparquet Gold Mines Inc., we had entered into an agreement with IAMGOLD Corporation ()"**IAMGOLD**") to acquire its Porcupine East property ()"**Porcupine East Property** "), located adjacent to our Duparquet Project and connecting our Pitt and Duquesne gold projects to the east (the "**IAMGOLD Transaction** "), for total consideration of:

o 2,500,000 First Mining Shares;

o The grant of a 1.5% NSR royalty on the Porcupine East Property to IAMGOLD;

o A future contingent payment of $500,000, in cash or First Mining Shares, on the declaration of a minimum of 350,000 oz gold resource estimate on the Porcupine East Property; and

o A future contingent payment of $1,000,000, in cash or First Mining Shares, to be paid within 12 months of commercial production being declared at the Duparquet Project, as long as any major surface infrastructure related to the Duparquet Project has been constructed on the Porcupine East Property.

*Page 24*

· Westward Gold Inc. ()"**Westward** "), successor in interest to Momentum Minerals Ltd., exercised its option to acquire 100% of our Turquoise Canyon Project located in Nevada, and upon exercise of the option, Turquoise Canyon Inc., a wholly-owned subsidiary of Westward, granted us a 2% NSR royalty on the Turquoise Canyon Project, 1% of which can be bought back by Westward for $1 million at any time prior to the first anniversary of commercial production on the property.

*<u>February</u>*

· We completed our previously announced acquisition of the Porcupine East Property.

· We announced that we had completed a transaction with Elemental Altus Royalties Corp. ()"**Elemental Altus**") pursuant to which we sold to Elemental Altus all of the issued and outstanding shares of one of our wholly-owned subsidiaries that held our non-core royalty portfolio for total consideration of approximately $6.7 million, comprised of $4.7 million in cash and 1,598,162 common shares of Elemental Altus (the "**Royalty Portfolio Transaction** "). Our royal portfolio sale to Elemental Altus was comprised of 19 royalties across four countries, including the 2% NSR on the Pickle Crow Project and the 1.5% NSR on the Hope Brook Project. The Elemental Altus shares paid to us as part of the consideration are subject to a statutory hold period of four months and one day from the issuance of the shares, expiring on June 22, 2023, along with a contractual restriction that expires six months after the closing date of the Royalty Portfolio Transaction, namely August 21, 2023.

· We were made aware that the Crown had filed a Statement of Defence and Cross-Claim in the Ontario Superior Court of Justice on February 10, 2023 in respect of the Cat Lake Claim (the "**Crown's Statement of Defence** "), with the Crown seeking a dismissal of the Cat Lake Claim and putting forward a cross-claim against the Province of Ontario for contribution and indemnity in the event Canada is found liable to pay monies to the Cat Lake First Nation as a result of the Cat Lake Claim.

*Page 25*

**Corporate organization**

The following diagram shows our current corporate structure and material subsidiaries, including the properties held by the various subsidiaries:

![](firstmining_ex991img61.jpg)

<u>Note:</u>

Our other subsidiaries, which each have total assets and revenues less than 10%, and in the aggregate less than 20%, of our total consolidated assets or our total consolidated revenue, are excluded from the above chart.

On March 30, 2015, First Mining was continued out of Alberta under the laws of the Province of British Columbia, Canada pursuant to the *Business Corporations Act* (British Columbia) (the "**BCBCA**"), and as a result, First Mining is now governed by the laws of the Province of British Columbia. On January 8, 2018, we changed our name to "First Mining Gold Corp.".

We are a reporting issuer in the province of British Columbia (our principal reporting jurisdiction) and in each of the other provinces of Canada. We currently have the following material wholly-owned subsidiaries:

---

| | | |
|:---|:---|:---|
| ·  | Gold Canyon Resources Inc., a company incorporated under the BCBCA. | **For more information:**<br>You can find more information about First Mining on SEDAR (<u>www.sedar.com</u>), and on our website (<u>www.firstmininggold.com</u>).<br>See our most recent management proxy circular dated April 29, 2022 for additional information, including how our directors and officers are compensated, principal holders of our securities, and securities authorized for issuance under our equity compensation plans.<br>See our audited consolidated annual financial statements and management's discussion and analysis for the financial year ended December 31, 2022 for additional financial information.<br>The information listed above is not included as part of the Annual Information Form.  |
|  |  | **For more information:**<br>You can find more information about First Mining on SEDAR (<u>www.sedar.com</u>), and on our website (<u>www.firstmininggold.com</u>).<br>See our most recent management proxy circular dated April 29, 2022 for additional information, including how our directors and officers are compensated, principal holders of our securities, and securities authorized for issuance under our equity compensation plans.<br>See our audited consolidated annual financial statements and management's discussion and analysis for the financial year ended December 31, 2022 for additional financial information.<br>The information listed above is not included as part of the Annual Information Form.  |
| ·  | Cameron Gold Operations Ltd., a company incorporated under the *Business Corporations Act* (Ontario) (the "**OBCA**"). | **For more information:**<br>You can find more information about First Mining on SEDAR (<u>www.sedar.com</u>), and on our website (<u>www.firstmininggold.com</u>).<br>See our most recent management proxy circular dated April 29, 2022 for additional information, including how our directors and officers are compensated, principal holders of our securities, and securities authorized for issuance under our equity compensation plans.<br>See our audited consolidated annual financial statements and management's discussion and analysis for the financial year ended December 31, 2022 for additional financial information.<br>The information listed above is not included as part of the Annual Information Form.  |
|  |  | **For more information:**<br>You can find more information about First Mining on SEDAR (<u>www.sedar.com</u>), and on our website (<u>www.firstmininggold.com</u>).<br>See our most recent management proxy circular dated April 29, 2022 for additional information, including how our directors and officers are compensated, principal holders of our securities, and securities authorized for issuance under our equity compensation plans.<br>See our audited consolidated annual financial statements and management's discussion and analysis for the financial year ended December 31, 2022 for additional financial information.<br>The information listed above is not included as part of the Annual Information Form.  |
| ·  | Coastal Gold Corp., a company incorporated under the OBCA. | **For more information:**<br>You can find more information about First Mining on SEDAR (<u>www.sedar.com</u>), and on our website (<u>www.firstmininggold.com</u>).<br>See our most recent management proxy circular dated April 29, 2022 for additional information, including how our directors and officers are compensated, principal holders of our securities, and securities authorized for issuance under our equity compensation plans.<br>See our audited consolidated annual financial statements and management's discussion and analysis for the financial year ended December 31, 2022 for additional financial information.<br>The information listed above is not included as part of the Annual Information Form.  |
|  |  | **For more information:**<br>You can find more information about First Mining on SEDAR (<u>www.sedar.com</u>), and on our website (<u>www.firstmininggold.com</u>).<br>See our most recent management proxy circular dated April 29, 2022 for additional information, including how our directors and officers are compensated, principal holders of our securities, and securities authorized for issuance under our equity compensation plans.<br>See our audited consolidated annual financial statements and management's discussion and analysis for the financial year ended December 31, 2022 for additional financial information.<br>The information listed above is not included as part of the Annual Information Form.  |
| ·  | Duparquet Gold Mines Inc., a company incorporated under the *Canada Business Corporations Act*. | **For more information:**<br>You can find more information about First Mining on SEDAR (<u>www.sedar.com</u>), and on our website (<u>www.firstmininggold.com</u>).<br>See our most recent management proxy circular dated April 29, 2022 for additional information, including how our directors and officers are compensated, principal holders of our securities, and securities authorized for issuance under our equity compensation plans.<br>See our audited consolidated annual financial statements and management's discussion and analysis for the financial year ended December 31, 2022 for additional financial information.<br>The information listed above is not included as part of the Annual Information Form.  |
|  |  | **For more information:**<br>You can find more information about First Mining on SEDAR (<u>www.sedar.com</u>), and on our website (<u>www.firstmininggold.com</u>).<br>See our most recent management proxy circular dated April 29, 2022 for additional information, including how our directors and officers are compensated, principal holders of our securities, and securities authorized for issuance under our equity compensation plans.<br>See our audited consolidated annual financial statements and management's discussion and analysis for the financial year ended December 31, 2022 for additional financial information.<br>The information listed above is not included as part of the Annual Information Form.  |
|  | Through Duparquet Gold Mines Inc., we own 2699681 Canada Ltd., which itself owns Eldorado Gold Mines Inc., a private company that owns in whole or in part, the surface rights to the Beattie, Donchester and Dumico properties that comprise the Duparquet Project. | **For more information:**<br>You can find more information about First Mining on SEDAR (<u>www.sedar.com</u>), and on our website (<u>www.firstmininggold.com</u>).<br>See our most recent management proxy circular dated April 29, 2022 for additional information, including how our directors and officers are compensated, principal holders of our securities, and securities authorized for issuance under our equity compensation plans.<br>See our audited consolidated annual financial statements and management's discussion and analysis for the financial year ended December 31, 2022 for additional financial information.<br>The information listed above is not included as part of the Annual Information Form.  |

---

We also own a 30% interest in PC Gold Inc., a joint venture company incorporated under the *Business Corporations Act* (Ontario), which owns the Pickle Crow Project.

*Page 26*

**Our projects**

We have interests in mineral properties located in Canada and the United States. As at December 31, 2022, these properties were carried on our balance sheet as assets with a total book value of approximately $220 million. The book value consists of acquisition costs plus cumulative expenditures on properties for which the Company has future exploration plans. The current book value is not necessarily the same as the total cumulative expenditures on each property given the acquisition costs were based on the consideration paid at the time of purchase. The book value is also not necessarily the fair market value of the properties.

Our material and non-material projects as of the date of this AIF are set out below.

*<u>Material projects</u>*

· Springpole Project (Ontario) ………….. p. 31

· Duparquet Project (Quebec) ………….. p. 60

· Cameron Project (Ontario) …………….. p. 79

Non-material projects ………………….………….………….p. 90

*Page 27*

**Material Properties**

**Springpole**

**Technical report**

The description in this section of the Springpole Project is based on the project's technical report: *NI 43-101 Technical Report and Pre-Feasibility Study on the Springpole Gold Project, Ontario, Canada* (report date: February 26, 2021; effective date: January 20, 2021) (the "**Springpole Technical Report**"). The report was prepared for us in accordance with NI 43-101 by AGP Mining Consultants Inc. ("**AGP**") under the supervision of Dr. Gilles Arseneau, Ph.D., P.Geo.; Mr. Gordon Zurowski, P.Eng., Mr. Roland Tosney, P.Eng., Mr. Cameron McCarthy, P.Eng., P.Geo., P.Tech., Mr. Duke Reimer, P.Eng., and Dr. Adrian Dance, Ph.D, P.Eng.; all Qualified Persons within the meaning of NI 43-101. The following description has been prepared under the supervision of Hazel Mullin, P.Geo., who is a Qualified Person within the meaning of NI 43-101, but is not independent of us. All currencies used in this summary of the Springpole Technical Report are in Canadian dollars unless otherwise noted.

The conclusions, projections and estimates included in this description are subject to the qualifications, assumptions and exclusions set out in the Springpole Technical Report, except as such qualifications, assumptions and exclusions may be modified in this AIF. We recommend you read the Springpole Technical Report in its entirety to fully understand the project. You can download a copy of the Springpole Technical Report from our SEDAR profile (<u>www.sedar.com</u>), or from our website (<u>www.firstmininggold.com</u>).

*Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability.*

**Project description, location and access**

The Springpole Project lies approximately 110 km northeast of the Municipality of Red Lake in northwest Ontario, Canada. The project is centered on a temporary tent-based camp situated on a small land bridge between Springpole Lake and Birch Lake. The latitude and longitude coordinates are:

· Latitude N51° 23ʹ 44.3ʺ

· Longitude W92° 17ʹ 37.4ʺ

The Universal Transverse Mercator map projection based on the World Geodetic System 1984 zone 15N is:

· Easting 49,183

· Northing 5,693,578

· Average Elevation 395 m

During late spring, summer, and early fall, the Springpole Project is accessible by floatplane direct to Springpole Lake or Birch Lake. All fuel, food, and material supplies are flown in from Red Lake or Sioux Lookut, Ontario, or from Winnipeg, Manitoba, with flight distances of 110 km, 145 km, and 370 km, respectively. The closest road access at present is 18 km away at the extension of the Wenesaga forestry road.

During winter, an ice road approximately 85 km long is constructed from the South Bay landing point on Confederation Lake to a point about 1 km from the Springpole Lake camp. During breakup in spring and freeze-up in fall, access to the Springpole Project is by helicopter. Additional winter access may be available via temporary airstrips cleared on nearby frozen lakes.

*Page 28*

First Mining acquired 100% of the Springpole Project on November 13, 2015 when it completed the acquisition of Gold Canyon Resources Inc. ("**Gold Canyon**"). When the Springpole Project was acquired from Gold Canyon, it consisted of 30 patented mining claims and 300 unpatented, contiguous mining claims and six Crown mining leases, totalling an area of approximately 32,448 ha. Additional mining claims were subsequently acquired by First Mining in the Satterly Lake area, and the original unpatented 'legacy' claims were converted into the new Ontario cell claim system in April 2018. A further seven mining leases were acquired by Gold Canyon in 2019 by conversion of existing mining claims covering 1,531 ha to mining leases. The Springpole Project currently comprises 30 patented mining claims, 282 contiguous mining claims and 13 mining leases. The area covered by the Project has increased since 2015 to its current total of 41,943 ha.

Through Gold Canyon, we lease 10 patented mining claims covering a total area of 182.25 ha. These 10 patented claims are fee simple parcels with all mining and surface rights attached, and registered, together with the notices of lease, with the Land Registry Office in Kenora, Ontario. The lease is for a term of 21 years less one day and terminates on April 14, 2031. Pursuant to an amending agreement dated December 11, 2020 among First Mining, Gold Canyon and the leaseholder:

· We had an option to purchase these 10 patented mining claims from December 11, 2020 until April 15, 2021 ()"**Purchase Option 1**") for US$7,000,000, of which US$1,000,000 could have been satisfied by the issuance of common shares of First Mining ()"**First Mining Shares**") to the leaseholder. First Mining elected not to exercise Purchase Option 1.

· We have the option to purchase these 10 patented mining claims from April 16, 2021 until April 15, 2025 ()"**Purchase Option 2**") for US$8,000,000, of which US$2,000,000 may be satisfied by the issuance of First Mining Shares to the leaseholder.

· If, on or before April 15, 2025, First Mining provides the leaseholder with written notice, pays US$250,000 to the leaseholder and issues 1,000,000 First Mining Shares to the leaseholder, we acquire a further option to purchase these 10 patented mining claims from April 16, 2025 until April 14, 2031 ()"**Purchase Option 3**") for US$10,000,000, less US$250,000. Of the total purchase price, US$3,000,000 may be satisfied by the issuance of First Mining Shares to the leaseholder.

· If, on or before April 14, 2031, First Mining provides the leaseholder with written notice and pays US$2,000,000 in cash to the leaseholder, the 21-year term of the lease shall automatically be extended by five additional years and the new expiry date of the lease will be April 14, 2036. In addition, we would immediately acquire a further option to purchase the 10 patented mining claims from April 15, 2031 until April 14, 2036 ()"**Purchase Option 4**") for US$12,000,000, less US$2,250,000. Of the total purchase price, US$4,000,000 may be satisfied by the issuance of First Mining Shares to the leaseholder.

· If, on or before April 14, 2036, First Mining provides the leaseholder with written notice and pays a further US$2,000,000 in cash to the leaseholder, then the term of the lease shall automatically be further extended by five additional years and the new expiry date of the lease will be April 14, 2041. In addition, we would immediately acquire a final irrevocable option to purchase the 10 patented mining claims from April 15, 2036 until April 14, 2041 ()"**Purchase Option 5**") for US$12,000,000, less US$4,250,000. Of the total purchase price, US$4,000,000 may be satisfied by the issuance of First Mining Shares to the leaseholder.

*Page 29*

· If at any time during the term of the lease, First Mining commences commercial production, the leaseholder can, by written notice, require us to purchase the 10 patented mining claims for US$12,000,000 (the "**Mandatory Purchase Right** "), less any cash payments made by Gold Canyon to the leaseholder in connection with Purchase Option 3, Purchase Option 4, and Purchase Option 5. Of the total purchase price, US$4,000,000 may be satisfied by the issuance of First Mining Shares to the leaseholder.

· If we purchase the 10 patented mining claims from the leaseholder prior to the commencement of commercial production, upon achieving commercial production, we must make a top-up payment to the leaseholder such that the leaseholder would have received an aggregate of US$12,000,000 from us for the claims (after taking into account any amounts previously paid in connection with the various purchase options). This top-up payment can be any satisfied through any combination of cash payments and First Mining Shares.

· We must pay the leaseholder advance royalty payments on a sliding scale of US$33,000/year (2010 - 2011), US$50,000/year (2011 - 2016), US$60,000/year (2016 - 2021), US$100,000/year (2021-2031), and US$120,000/year (2031 - 2041), and all such advance royalty payments shall be deducted from any future NSR payments made to the leaseholder.

We must pay all applicable property taxes related to the 10 patented mining claims during the term of the lease, and we maintain a right of first refusal on any sale by the leaseholder of its interest in the claims.

Through Gold Canyon, we also have an option and lease to a further 15 patented mining claims which are fee simple parcels with mining and surface rights attached and registered, together with the notice of option and lease, with the Land Registry Officer, Kenora, Ontario. The current term of the purchase option expires on September 9, 2023 and may be extended for successive five-year terms by delivering notice along with a renewal fee of US$50,000 and confirmation that at least $300,000 was spent on mining operations in the prior option period. We are required to make option payments in the aggregate amount of US$35,000 per year and to expend an aggregate of $300,000 on mining operations in each option term as a condition of any renewal and to pay all property taxes related to these patented claims. We have an option to acquire the 15 claims and would be required to do so upon the commencement of commercial production at any time during the option period by payment of an aggregate of US$2 million. Upon exercise of the purchase option, we must also acquire the cabin on the property for the lesser of fair market value or US$20,000.

*Page 30*

Underlying royalties which affect the Springpole Project are:

· 3% NSR on five patented claims payable to Jubilee Gold Exploration Ltd. ()"**Jubilee Gold**") upon commencement of commercial production with advance royalty payments of $70,000 per year, adjusted using the yearly Consumer Price Index. We have an option to acquire 1% of the NSR for $1,000,000 at any time, and a right of first refusal on any sale of the NSR. We can terminate the royalty obligations at any time by transferring the five patented claims back to Jubilee Gold;

· 3% NSR on 10 leased patented claims payable to a leaseholder upon commencement of commercial production with advance royalty payments on a sliding scale of US$33,000/year (2010 - 2011), US$50,000/year (2011 - 2016), US$60,000/year (2016 - 2021), US$100,000/year (2021-2031), and US$120,000/year (2031 - 2041). We have a right to acquire up to 2% of the NSR for US$1,000,000 per 1% (the "**Buy-Back Right** "). In the event that any of Purchase Options 1 to 5 are exercised, or the Mandatory Purchase Right is exercised, the leaseholder would still retain a 3% NSR on the claims, unless the foregoing Buy-Back Right had already been exercised;

· 3% NSR on 15 patented claims (held by us pursuant to an option and lease) is payable to an optionor and leaseholder during the option term upon commencement of commercial production or a 1% NSR if the purchase option is exercised prior to commercial production. We have a right to acquire the remaining 1% NSR by a payment of US$500,000; and

· 3% NSR on six unpatented mining claims payable to an individual vendor upon commencement of commercial production with advance royalty payments of US$50,000 per year. We have an option to acquire all or a portion of the NSR at a rate of US$500,000 per 1% of the NSR.

We are required to purchase a vacation home owned by a vendor that is located on the Springpole Project upon commencement of commercial production.

To keep a mining claim current, the mining claim holder must perform $400 per single cell mining claim unit worth of approved assessment work per year, or $200 per boundary cell mining claim unit, immediately following the initial registration date. The claim holder has two years to file one year's worth of assessment work.

Surface rights are separate from mining rights. Should any method of mining be appropriate, other than those claims for which Crown leases were issued, the surface rights would need to be secured.

We entered into the Silver Stream Agreement with First Majestic on June 10, 2020 pursuant to which First Majestic has agreed to pay a total of US$22,500,000 to First Mining over three tranches for the right to purchase 50% of the payable silver produced from the Springpole Project (the "**Silver Stream**"). The first two tranches have been paid (the first tranche was paid at closing, and the second tranche was paid in January 2021 following the announcement by First Mining of the results of the Springpole PFS), consisting of an aggregate of US$6,250,000 in cash and US$11,250,000 in common shares of First Majestic ("**First Majestic Shares**"). First Majestic is required to make a final payment of US$5,000,000 (payable US$2,500,000 in cash and US$2,500,000 in First Majestic Shares) to First Mining upon the earlier receipt by First Mining of approval of a federal or provincial Environmental Assessment for the Springpole Project. Following the commencement of production at the Springpole Project, First Majestic is required to make ongoing cash payments to us equal to 33% of the lesser of the average spot price of silver for the applicable calendar quarter, and the spot price of silver at the time of delivery, subject to a price cap of US$7.50 per ounce of silver. We have the right to repurchase 50% of the Silver Stream for US$22,500,000 at any time prior to the commencement of production. We also granted First Majestic a right of first refusal with respect to any future silver stream financings related to the Springpole Project.

*Page 31*

**History**

Gold exploration was carried out at Springpole during two main periods, one during the 1920s to 1940s, and a second period from 1985 to the present.

Between 1933 and 1936, extensive trenching and prospecting was conducted on the Springpole Project, including 10 short holes totalling 458.5 m. Limited trenching and prospecting was completed in 1945.

The area remained dormant until 1985, when an airborne geophysical survey was completed over the entire claim group, and on the 30 patented claims line cutting was done at both 30.5 m centres and 61 m centres. Subsequently, geological mapping, humus geochemistry, and ground geophysics were conducted over the grids.

From 1986 through 1989, 118 diamond drill holes were completed in seven drill phases totalling 38,349 m. In addition, during 1986 and 1987, approximately 116,119 m<sup>2</sup> of mechanical stripping was carried out and four petrographic reports were produced.

From 1989 through 1992, an induced polarization survey over the central portion of the Portage zone under Springpole Lake was conducted and the Springpole Project was tested with eighteen core holes totalling 5,993 m. The majority of the drilling was conducted on the Portage zone. At the same time, a seven-core hole drill program was completed around the east margins of Springpole Lake and lake-bottom sediment sampling of Springpole Lake east of Johnson Island was completed.

During 1995, an exploration program consisting of remapping of the main area, of some of the existing drill core, and a reinterpretation of the geology was carried out. During the 1995 and 1996 programs, an additional 69 holes were drilled totalling 15,085 m on the Springpole Project proper and two drill holes on Johnson Island. By late 1996, Gold Canyon acquired 100% of the Springpole Project. Gold Canyon continued exploration in 1997 and 1998 with another 52 core holes totalling 5,643 m.

In the summer of 1998 a lake bottom sediment sampling program was conducted in several areas of the Springpole Project, which identified several follow-up targets that were tested in 1999 with 12 core holes totalling 2,779 m.

During 2004, 2005, and 2006, diamond drilling programs were conducted on the Springpole Project by Gold Canyon, totalling over 17,322 m in 109 drill holes.

In 2007, Gold Canyon conducted an 11 diamond drill hole program that totaled 2,122 m of drilling, and in the fall of 2007, they embarked on a limited exploration program to further investigate the Fluorite zone that was previously identified during a trenching program in 1990.

In 2008, Gold Canyon drilled a further seven core holes totaling 2,452 m.

From early August through to the end of October 2009, Gold Canyon re-logged and re-sampled a portion of the historic drill core stored at the project site and temporary tent camp. A total of 115 drill holes were re-logged which equates to approximately 31% of the available drill holes.

In the winter of 2010, a total of six diamond drill holes were drilled for a total of 1,774.5 m of HQ drilling. During the following summer and fall of 2010, a total of 8,662 m of diamond drilling was completed in 23 drill holes.

In 2011, Gold Canyon carried out a drill program which totaled 29,787 m in 82 diamond core holes.

A 2012 drill program began in-filling the Portage zone based upon results of the 2011 drill program. The 2012 drill program totaled 39,392 m in 98 diamond core holes.

*Page 32*

In 2013, Gold Canyon drilled 24 diamond drill holes totaling 5,394.5 m, and 18 Vibracore holes totaling 720.8 m.

In the winter of 2013, seven inclined diamond drill holes were drilled totaling 2,401.5 m. These holes were drilled to explore for additional mineralization outside the proposed pit wall and to obtain further structural and geotechnical data around the proposed open-pit area.

In June and July 2013, 17 diamond drill holes totaling 2,993 m were drilled from barges on Springpole Lake.

In the fall of 2013, 18 holes totaling 720.9 m were drilled from a barge on Springpole Lake using a new drilling technique that employed a combination of standard soil sampling tools and sampling techniques for the very soft material and the use of Vibracore equipment to penetrate and sample the more competent sediments/rocks.

In 2013, Gold Canyon commissioned SRK Consulting (Canada) Inc. ("**SRK**") to supervise the 2013 geotechnical and structural/geological program and to complete a preliminary economic assessment on the Springpole Project.

On November 13, 2015, we acquired Gold Canyon, and as a result, the Springpole Project.

In October 2016 we commenced a drilling program at the Springpole Project to collect additional material for metallurgical testing. A total of four holes comprising 1,712 m were drilled, with hole locations specifically chosen to recover sample material that is representative of the Springpole deposit. In February 2017, we announced the results of the drilling program.

In 2017, we commissioned SRK to complete an updated PEA on the Springpole Project.

In 2018, we carried out a limited geotechnical drill program to test the integrity of ground relevant to dyke construction and characterize the dyke foundation materials. Eleven short holes were drilled totaling 243 m.

In 2020, three diamond drill holes totaling approximately 1,182 m were drilled to collect additional material for metallurgical testing within the immediate vicinity of the proposed open pit. A further 24 diamond drill holes were drilled totaling 4,091 m in order to obtain additional geotechnical data in both the pit wall area and the areas of planned mine infrastructure. The ten holes which targeted the pit wall were also utilized to collect hydrogeological data.

**Geological setting, mineralization and deposit types**

The Springpole Project is located within the Archean-aged Birch-Uchi Greenstone Belt. Studies of the southern part of the Birch-Uchi greenstone belt have revealed a long, multistage history of crustal development. Based on mapping, lithogeochemistry, and radiometric dating, the supracrustal rocks of the greenstone belt were subdivided into three stratigraphic group-scale units (listed in decreasing age): the Balmer, Woman and Confederation assemblages. This three-part subdivision was applied to most of the Uchi Subprovince. The Confederation assemblage is thought to be a continental margin (Andean-type) arc succession, versus the less certain tectono-stratigraphic context of the other assemblages. Some relatively small conglomeratic units likely form a synorogenic, discontinuously distributed, post-Confederation assemblage in the Birch-Uchi greenstone belt.

*Page 33*

The northern margin of the Birch-Uchi greenstone belt forms a pattern of sub-regional scale cusps of supracrustal strata alternating with batholiths. Basaltic units are prominent around the periphery of the greenstone belt and may be part of the Woman assemblage but the accuracy of this stratigraphic assignment is unknown. It is suggested that Confederation assemblage age rocks make up the bulk of the greenstone belt.

The Springpole Project is underlain by a polyphase alkali, trachyte intrusion displaying autolithic breccia. The intrusion is comprised of a system of multiple phases of trachyte that is believed to be part of the roof zone of a larger syenite intrusion; fragments displaying phaneritic textures were observed from deeper drill cores in the southeast portion of the Portage zone. Early intrusive phases consist of megacrystic feldspar phenocrysts of albite and orthoclase feldspar in an aphanitic groundmass. Successive phases show progressively finer-grained porphyritic texture while the final intrusive phases are aphanitic. Within the country rocks to the north and east are trachyte and lamprophyre dikes and sills that source from the trachyte- or syenite-porphyry intrusive system.

The main intrusive complex appears to contain many of the characteristics of alkaline, porphyry style mineralization associated with diatreme breccias (e.g. Cripple Creek, Colorado). Direct comparison with drill core from the two sites shows a number of consistent textures and styles of mineralization. A recent observation made from drilling, combined with the airborne magnetic survey, shows that potentially economic gold mineralization is coincident with an unexplained geophysical anomaly. This style of mineralization is characterized by the Portage zone and portions of the East Extension zone where mineralization is hosted by diatreme breccia in aphanitic trachyte. It is suspected that ductile shearing and brittle faulting have played a significant role in redistributing structurally controlled blocks of the mineralized rock. Still to be identified is a form of porphyry style alteration zoning consisting of an outer zone of phyllic (sericite) dominant alteration with narrow zones of advanced argillic alteration characterized by illite and kaolinite, and a core zone of intense potassic alteration characterized by biotite and K-feldspar.

Mineralization at the Springpole Gold Project is dominated by large tonnage, low grade, disseminated porphyry-style or epithermal-style gold mineralization associated with the emplacement of an alkali trachyte intrusion. Textures observed in the extensive repository of drill core appear to confirm that the disseminated gold-silver-sulphide mineralization, the mesothermal to epithermal lode vein gold mineralization, and the banded iron-formation hosted gold mineralization are all the result of the emplacement of multiple phases of trachyte porphyry and associated diatreme breccias, hydrothermal breccias, dikes and sills.

**Exploration**

During the winter of 2019 - 2020, we initiated a program of core re-sampling. A total of 8,358 samples were collected for total sulphur assays, along with 611 samples collected for bulk density determination.

We conducted several field programs throughout 2020, with the primary purpose of collecting additional data to advance the metallurgical, geotechnical, hydrogeological, and environmental studies at the Springpole Project through PFS-level and beyond. Diamond drilling was undertaken to collect samples for metallurgical and geotechnical test work. In addition, a detailed geotechnical field testing and sampling program was completed over the areas of proposed mine infrastructure.

A program of condemnation drilling targeting key infrastructure areas was commenced in 2020 and was completed in 2021. Additional mapping and sampling of nearby trachyte outcrops was completed during the summer of 2020 and further exploration on these areas and other potential targets outside of the main resource area continued in 2021.

*Page 34*

**Drilling**

During the winters of 2007 and 2008, Gold Canyon conducted drill programs that completed 18 drill holes totalling 4,574 m, 11 holes totalling 2,122 m, and 7 holes totalling 2,452 m of diamond core drilling, respectively.

During the winter of 2010, a total of six diamond drill holes were drilled for a total of 1,774.5 m of HQ drilling. Two drill holes were not completed and both holes ended in altered and mineralized rock. The drill program revealed a more complex alteration with broader, intense zones of potassic alteration replacing the original rock mass with biotite and pyrite. During the summer and fall of 2010, an additional 23 diamond drill holes were drilled for a total of 8,662 m.

The 2011 drill program totaled 29,787 m in 82 diamond core holes. Five of the diamond core holes were drilled for the purpose of metallurgical testing. All these holes were twins of previously drilled holes.

The 2012 drill program began in-filling the Portage zone based upon results of the 2011 drill program. The goal was to infill areas where Inferred Mineral Resources had been defined in the February 2012 Mineral Resource update and to potentially expand the mineralization to the southeast. The 2012 drill program totaled 39,392 m in 98 diamond core holes.

During 2013, Gold Canyon drilled 24 drill holes totaling 5,394.5 m, and 18 Vibracore holes totaling 720.8 m. Between January and March 2013, Gold Canyon drilled a total of 2,401.5 m in the seven holes. Three of the drill holes encountered multiple zones of mineralization. In June and July 2013, 17 diamond drill holes totalling 2,993 m were drilled from barges on Springpole Lake. In Fall 2013, eighteen holes totalling 720.9 m were drilled from a barge on Springpole Lake. These holes established that the Portage zone is covered with up to 71 m of soft clay lake bottom sediments and till. The 2013 drilling program firmly established that the zone between lake bottom and the top of bedrock is essentially barren of any significant gold and silver mineralization.

The 2016 drill program was implemented to collect additional material from the Portage zone so that additional metallurgical testing could be carried out. In total, 1,712 m were drilled in the four holes (PM-DH-01 to 04).

In 2018, we carried out a limited geotechnical drill program to test the integrity of ground relevant to dyke construction and characterize the dyke foundation materials. Eleven short holes were drilled totalling 243 m.

Three diamond drill holes totaling approximately 1,182 m were drilled to collect additional material for metallurgical testing within the immediate vicinity of the proposed open pit. A further 24 diamond drill holes were drilled totaling 4,091 m in order to obtain additional geotechnical data in both the pit wall area and the areas of planned mine infrastructure. The ten holes which targeted the pit wall were also utilized to collect hydrogeological data.

*Page 35*

**Sampling, analysis and data verification**

Detailed descriptions of the drill core were carried out under the supervision of a senior geologist, a member in good standing of the Association of Professional Geologists of Ontario and American Institute of Professional Geologists. The core logging was carried out on-site in a dedicated core logging facility. Drill log data from drill programs up to 2016 were recorded onto paper logs that were later scanned and digitized. Logging of the 2018 and 2020 drill core was completed using Datamine 'DH Logger' software, and data was imported directly into our central Fusion SQL drilling database.

Core was laid out 30 to 40 boxes at a time. First, the core was photographed in 15 m batches prior to logging or sampling. This was followed by a geotechnical log that recorded quantitative and qualitative engineering data including detailed recovery data and rock quality designation. Any discrepancies between marker blocks and measured core length were addressed and resolved at this stage. The core was then marked up for sampling.

For Gold Canyon's 2010 and 2011 drill programs, and the 2016 - 2020 First Mining drill programs, all the drill core intervals were sampled using sample intervals of 1 m. During the 2012 drilling program, Gold Canyon changed its standard sample length from 1 m to 2 m lengths. However, in zones of poor recovery, 1.5 m or 3 m samples were sometimes collected. Samples over the standard sample length were typically half core samples and whole core was generally only taken in intervals of poor core recovery across the sampled interval. Sampling marks were made on the core and sample tickets were stapled into the core boxes at the beginning of each sample interval.

Quality control samples were inserted into the sample stream. Inserting quality control samples involved the addition of certified blanks, certified gold standards, and field and laboratory duplicates. Field duplicates were collected by quartering the core in the sampling facility on-site. Laboratory duplicates were collected by splitting the first coarse reject and crushing and then generating a second analytical pulp. Blanks, standards, and duplicates made up on average 10% of the total sample stream. Sample tickets were marked blank, field or laboratory duplicate, or standard, and a sample tag was stapled into the core box within the sample stream.

Geological descriptions were recorded for all core recovered. Separate columns in the log allow description of the lithology, alteration style, intensity of alteration, relative degree of alteration, sulphide percentage, rock colour, vein type, and veining density. A separate column was reserved for written notes on lithology, mineralization, structure, vein orientations/relations etc. The header page listed the hole number, collar coordinates, final depth, start/end dates, and the name of the core logging geologist.

Following the logging and core marking procedures described above, the core was passed to the sampling facility. Core sampling was performed by experienced sampling technicians (for Gold Canyon's drill programs, technicians were from Ackewance Exploration & Services of Red Lake, Ontario), or on-site geologists, and quality control was maintained through regular verification by on-site geologists. Core was broken, as necessary, into manageable lengths. Pieces were removed from the box without disturbing the sample tags, were cut in half lengthwise with a diamond saw, and then both halves were carefully repositioned in the box. When a complete hole was processed in this manner, one half was collected for assay while the other half remained in the core box as a witness. The remaining core in the boxes was then photographed. All logs and photographs were then submitted to the senior geologist/project manager for review and were archived. Data were backed up.

*Page 36*

The sampling technician packed one half of the split core sample intervals into transparent vinyl sample bags that were sequentially numbered to match the sample number sequences in the sample tag booklets used by the core-logging geologists. The numbered, blank portion of the triplicate sample tag was placed in the bag with the sample; the portion that was marked with the sample interval remained stapled into the bottom of the core box at the point where the sample interval begins. Sample bags were then sealed with plastic tags. Sealed sample bags were packed into rice sacks five samples at a time. All sacks were individually labeled with the name of the company, number of samples contained therein, and the number sequence of the samples therein. Sacks were assigned sequential numbers on a per shipment basis. A project geologist then checked the sample shipment and created a shipping manifest for the sample batch. A copy was given to the project manager and a copy was sent along with the sample shipment. A copy of the sample shipment form was also sent via e-mail to the analytical laboratory.

The project geologist prepared the sample submission form for the assay laboratory. This form identified the number of sample sacks as well as the sequence of sample numbers to be submitted. Due to the remote location, the shipment was then loaded on to a plane or helicopter and flown direct to Red Lake where representatives of the commercial analytical laboratory met the incoming flight and took the samples to the laboratory by pickup truck.

Once at the laboratory, a manager checked the rice sacks and sample numbers on the submission form. The laboratory then split the received sample manifest into batches for analysis, assigned a work order to the batch, and sent a copy of the mineral analysis acknowledgement form to the project manager.

Aluminum tags embossed with the hole number, box number, and box interval (from/to) were prepared and stapled onto the ends of each core box. Core boxes were cross stacked on pallets and then moved to on-site storage.

Core samples collected at the drill site were held in closed core boxes sealed with fiber tape; at various times of day, camp staff collected the core boxes that were then delivered to the core logging facility. All core logging, sampling and storage took place at the Springpole Project site. Following the logging and marking of core, all core preparation and sampling was performed by technicians (for Gold Canyon's drill programs, technicians were from Ackewance of Red Lake, Ontario) under the supervision of the project manager, or by company geologists. All on-site sampling activities were directly supervised by the project manager or geologist.

All gold assay work since the 2010 drill program has been performed by SGS Laboratories in Red Lake, Ontario. Silver and multi-element assays for the Gold Canyon drill programs were performed by the SGS Don Mills laboratory in Toronto, Ontario, and by the SGS laboratory in Vancouver for our 2016 and 2020 drill programs. The SGS facilities are certified and conform to requirements CAN-P-1579 and CAN-P-4E (ISO/IEC 17025:2005). Certification is accredited for precious metals including gold and silver and 52 element geochemical analyses.

We have attested that there is no commercial nor other type of relationship between us and SGS Laboratories that would adversely affect the independence of SGS Laboratories.

All samples received by SGS Red Lake were processed through a sample tracking system that is an integral part of the company's laboratory information management system. This system utilizes bar coding and scanning technology that provides complete chain of custody records for every stage in the sample preparation and analytical process.

Samples were dried, and then crushed to 70% of the sample passing 2 mm (-70 mesh). A 250 g sample was split off the crushed material and pulverized to 85% passing 75 microns (200 mesh). A 30 g split of the pulp was used for gold fire assay and a 2 g split was used for silver analysis. Crushing and pulverizing equipment was cleaned with barren wash material between sample preparation batches and, where necessary, between highly mineralized samples. Sample preparation stations were also equipped with dust extraction systems to reduce the risk of sample contamination. Once the gold assay was complete, a pulp was sent to the SGS Toronto facility for silver and possibly for multi-element geochemical analysis.

*Page 37*

As part of the standard internal quality control procedures used by the laboratory, each batch of 75 Springpole Project core samples included four blanks, four internal standards, and eight duplicate samples. In the event that any reference material or duplicate result would fall outside the established control limits, the sample batches would be re-assayed.

Pulps and rejects from the core samples, as well as from earlier drill programs where still available, are currently being kept in storage by First Mining.

Prepared samples were analyzed for gold by fire assay with atomic absorption finish. Samples returning assays in excess of 10g/t gold were re-analyzed with a gravimetric finish.

Prepared pulp samples shipped from SGS Red Lake to SGS Toronto were analyzed for silver by three-acid digestion with atomic absorption finish.

During the winter 2010 program, prepared samples were analyzed for 52 elements by acid digestion (3:1 HCl: HNO<sub>3</sub>).

All samples from the 2016 and 2020 drill programs by us were also analyzed for 52 elements by acid digestion.

The QA/QC program for 2003 to 2007 consisted of:

· resubmission of approximately 10% of the sample pulps to a second laboratory (ALS Chemex).

· insertion of two commercial standard reference materials (standards submitted every 30<sup>th</sup>sample)

· insertion of blanks

A total of 18 drill holes were completed in 2007 and 2008 comprising a total of 1,374 assay intervals. These samples were assayed for gold only by the Accurassay Laboratories of Thunder Bay, Ontario. SRK checked a total of 137 samples representing 10% of the total against the original certificates. No errors were found.

No program was set up for duplicates, standards, or blanks for this drilling program. The laboratory ran their own set of duplicates for internal monitoring purposes; however, those data were not available to SRK.

In 2010, Gold Canyon instituted a QA/QC program consisting of commercial standard reference materials for gold, and, consistent with current industry practice, blanks, field duplicates, and pulp duplicates. In addition, a "round robin" program was instituted in 2011 with ACT Labs of Red Lake, Ontario, that compared pulp re-assay results against the original SGS results for 469 samples. SGS conducted their own program of internal duplicate analysis as well.

For the First Mining QA/QC programs from the 2016 and 2020 drilling, blanks and standards were inserted at a rate of one standard for every 20 samples (5% in total), and one blank for every 30 samples (3% in total). 'Coarse' duplicates and 'pulp' duplicates were also inserted at regular intervals with an insertion rate of 4%. For the 2020 assay program, field duplicates from quartered core were also inserted at regular intervals, with an insertion rate of 4%.

*Page 38*

In addition to the QA/QC program implemented by First Mining, the laboratories operate their own internal laboratory QA/QC system, inserting quality control materials, blanks, laboratory replicates and laboratory duplicates on each analytical run.

Of the 18 drill holes completed in 2007 and 2008, comprising a total of 1,374 assay intervals analyzed for gold, SRK checked a total of 137 samples representing 10% of the total against the original certificates. No errors were found.

A total of 3,135 assay values for gold and 3,161 assay values for silver in the database were compared against the original protected PDF assay certificates submitted by SGS Red Lake. These totals represent 10.1% and 10.4% of the total number of assays for gold and silver, respectively.

Of the original assay values checked against certificates, the focus was on values material to any resource estimate, either higher-grade intervals or very low-grade intervals in proximity to higher-grade intervals. The average grade of gold samples verified was 2.05 g/t Au. The average grade of silver samples checked was 8.27 g/t Ag.

Only two errors were found for gold:

· The gold value of sample interval SP10-028 from 433 m to 436 m (sample number 8287) was found to have an entered value of 5.96 g/t gold against a value on the assay certificate of 9.00 g/t gold.

· The gold value of sample interval SP11-076 from 69 to 70 m (sample number 14583) having the value of 0.45 oz./t was incorrectly placed in the parts per billion column.

No errors were found with respect to silver assays.

This represents an error rate of 0.064% in gold assays and an error rate of 0.0% in silver assays. This error rate is well within acceptable industry standards.

As part of the Mineral Resource estimation process, SRK reviewed the QA/QC data collected by Gold Canyon, reviewed the procedures in place to assure assay data quality, and verified the assay database against original assay certificates provided directly to SRK by SGS Red Lake, the assay laboratory. A total of 53,431 gold assays, 46% of the assay data, were checked against original assay certificates. No significant database errors were identified. About 143 minor rounding errors were observed. None of the rounding errors are deemed material or of any significance to the Mineral Resource estimate presented in the report.

*Page 39*

**Mineral processing and metallurgical testing**

The Springpole deposit has been the subject of several metallurgical test work programs and previous studies, as summarized in the following table:

---

| | | |
|:---|:---|:---|
| **Year** | **Laboratory** | **Test work Performed** |
| 1989 | Lakefield Research, Lakefield; LR3657 | Whole ore leach cyanide leach and CIL |
| 2011 | SGS Mineral Services, Vancouver; 50138-001 | Whole ore cyanide leach |
| 2013 | SGS Mineral Services, Lakefield; 13152-001 | Whole ore cyanide leach<br> Flotation and concentrate regrind leach  |
| 2013 | Process Mineralogical Consulting Ltd; Oct 2013-05 | Mineralogical analysis of two grab samples |
| 2017<br>| Base Met Labs, Kamloops; BL0161<br>| Comminution testing<br> Mineralogical assessment – BMA, TMS<br> Whole ore leach<br> Rougher flotation and concentrate regrind leach<br> Viscosity |
| 2018<br>| ALS Metallurgy, Kamloops; 180107<br>| Whole ore cyanide leach<br> Flotation: Concentrate regrind leach and tail leach  |
| 2018 | Jacobs Engineering Group, Lakeland Florida | Reverse flotation to float off mid-size mica to reduce comminution requirement |
| 2018 | Eriez Flotation Division, Erie Pennsylvania | Hydraulic classification to remove multiple size fractions of micas to reduce comminution requirement – cross flow and hydrofloat separation |

---

During 2020, we completed a comprehensive comminution and metallurgical test work program to support the PFS. This included head grade analyses, mineralogy, a full suite of comminution, flotation, and leach tests; cyanide detoxification, rheology, and solid/liquid separation. Test work was conducted by SGS Lakefield, Canada in two phases: Phase 1 used available coarse reject material from the 2016 drilling campaign and Phase 2 used fresh HQ drill core from the 2020 winter drilling campaign.

Tests were performed on mineralization that is considered to be representative of plant feed, based on a recent mine plan. Composite samples representing major lithologies and a range of head grades were prepared (0.60 to 2.0 g/t Au and 0.5 to 20 g/t Ag). The minimum and maximum grades aligned with expected plant feed for the first nine years of production.

Bulk mineralogy on select composites showed the main sulphide mineral was pyrite, ranging from 5.3 to 7.7%, with traces of chalcopyrite, sphalerite, and galena. Gold deportment studies indicated 5 to 12% of the gold is sub-microscopic; 8 to 14% of the gold is locked in <11 µm size fractions; 42 to 64% of the gold is exposed and 22 to 32% is liberated. A host of telluride minerals exist in the microscopic size range, with petzite the most dominant. Gold and electrum occur in minor amounts.

Comminution testing showed that the materials tested are considered very soft to medium in competency, with SMC test A\*b values ranging from 40 to 124 and SPI test results from 7 to 67 min. Conventional Bond tests showed significant variation in hardness, with Bond rod mill work indices ranging 9 to 15 kWh/t and Bond ball mill work indices ranging from 8 to 18 kWh/t, at a closing screen size of 150 µm.

Two parallel flowsheets were evaluated, following the results from the previous studies: flotation + concentrate and tailings leaching versus whole ore leaching. The recommended flowsheet for this study is flotation with concentrate/tailings leaching.

*Page 40*

Whole ore cyanide leach tests showed relatively poor extraction at a grind size of 80% passing 75 µm or greater using aggressive leach conditions to combat the effects of the telluride minerals. Gold leach extractions ranged from 52 to 72%. At a finer grind of 80% passing 60 µm, gold extractions ranged from 64 to 84%.

Rougher flotation tests showed high sulphide recovery was generally achieved within eight minutes. Excessive foaming was observed in some samples. This was considered attributable to a drilling compound added to the core, to aid core recovery (this was also commented on in the 2019 updated PEA report for the Springpole Project, which tested samples from the same drilling program). High mass pull was observed in these samples. A cleaning stage reduced the mass pull reporting to concentrate regrind. Flotation recoveries to cleaner concentrate ranged from 55 to 83% for gold, 55 to 90% for silver and 75 to 98% for sulphur at a target mass pull of 15% or less. Leaching of flotation tails is required to attain acceptable gold recovery. Tailings samples showed very high leach extractions in general.

Flotation concentrate gold extraction showed significant benefit from finer regrinding to an 80% passing size of 15 to 17 µm. Particularly high concentrate leach residue grades were observed at 80% passing 25 µm. Flotation concentrate gold extractions ranged from 62 to 97%, somewhat dependent on gold head grade. Flotation tails gold extractions ranged from 52 to 94%.

Overall plant gold recoveries are predicted to average 86% for head grades of 0.8 to 1.22 g/t Au. Overall plant recoveries for silver are predicted to range from 85 to 92% for head grades of 3.2 to 8.3 g/t Ag.

Cyanide detoxification tests achieved <1 mg/L CNWAD, with favourable reagent consumption rates.

Mercury grades were in the range of <0.3 to 8 g/t in the flotation feed. A retort with gas collection system was incorporated into the plant design to manage and control mercury in the process. Arsenic is present in the feed at concentrations up to 30 g/t and is not expected to be problematic in processing. No other elements were noted that may cause issues in the process plant or concerns with product marketability.

Thickening and filtration of cyanide detoxified slurry showed a moisture content of 18.5% (by weight) was achieved with high-rate thickening followed by pressing and drying using a conventional plate and frame filter press. A moisture content of 15% was achieved when employing a membrane squeeze in addition to pressing and drying in a plate and frame filter.

The authors of the Springpole Technical Report make the following recommendations: (i) future drilling should be done using drill mud additives that have been demonstrated to have minimal impact on metallurgical test work (a bulk sample might be considered to avoid the issue of drilling compound modifying reagents); (ii) investigate the impact of drilling mud additives on flotation mass pull with the objective of reducing flotation circuit size and regrind power requirements; (iii) further optimize concentrate leach reagents and consider reductions in leach extraction time (this includes reducing the number of concentrate leach adsorption tanks and recover residual gold/silver in solution using the flotation tails CIP circuit); (iv) optimize combined tails residual cyanide levels and aim to reduce cyanide detoxification retention time; and (v) conduct a full Feasibility Study metallurgical test work program incorporating variability and production composite test work (this includes dewatering/filtering tests on the final tailings material).

*Page 41*

**Mineral resource estimates**

There are 662 drill holes in the Springpole Project database provided to SRK for the resource estimate. The Mineral Resource estimate for the Springpole Project utilizes results from 404 core boreholes drilled by previous owners of the property during the period of 2003 to 2013, and seven holes drilled by us in 2016 and 2020.

The revised Mineral Resource estimate was based on a gold price of US$1,550/oz and a silver price of US$20/oz, both considered reasonable economic assumptions by SRK. To establish a reasonable prospect of economic extraction in an open pit context, the resources were defined within an optimized pit shell with pit walls set at 35° to 50° based on domains. Assumed metallurgical recoveries of 88% for gold and 93% for silver were used. Mining costs were estimated at $1.62/t of total material, processing costs estimated at $15.38/t, and general and administrative ("**G&A**") costs estimated at $1.00/t. A cut-off grade ("**COG**") of 0.3 g/t Au was calculated and is considered to be an economically reasonable value corresponding to breakeven mining costs. Approximately 90% of the revenue for the proposed project is derived from gold, with 10% derived from silver.

The updated resource estimate is summarized in the table below.

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | | **Grade** | **Grade** | **Metal** | **Metal** |
| | | **Au** | **Ag** | **Au** | **Ag** |
| **Category**<br>| **Quantity**<br>**(Mt)** | **(g/t)** | **(g/t)** | **(Moz)** | **(Moz)** |
| **Open Pit** | **Open Pit** | **Open Pit** | **Open Pit** | **Open Pit** | **Open Pit** |
| Indicated | 151 | 0.94 | 5.0 | 4.6 | 24.3 |
| Inferred | 16 | 0.54 | 2.8 | 0.3 | 1.4 |

---

Note: This Mineral Resource estimate is as of July 30, 2020.

Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability. The estimate of Mineral Resources may be materially affected by environmental, permitting, legal, title, taxation, sociopolitical, marketing, or other relevant issues. The quantity and grade of reported Inferred Mineral Resources in this estimation are uncertain in nature and there has been insufficient exploration to potentially convert some or all of these Inferred Mineral Resources as an Indicated or Measured Mineral Resource and it is uncertain if further exploration will result in upgrading them to the Indicated or Measured Mineral Resource category. SRK is of the opinion that further attempts to convert the remaining Inferred material to Indicated would be of questionable value. The current proportion of the Mineral Resource classified as Inferred Mineral Resources is 10% of total tonnes, and 6% of contained gold.

*Page 42*

**Mineral reserve estimates**

The Mineral Reserves for the Springpole Project are based on the conversion of the Measured and Indicated Mineral Resources within the current Springpole Technical Report mine plan. Indicated Mineral Resources in the mine plan were converted directly to Probable Mineral Reserves. There are currently no Measured Mineral Resource estimates and therefore there are no Proven Mineral Reserves. The total Mineral Reserves for the Springpole Project are shown in the table below.

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | | **Grade** | **Grade** | **Contained Ounces** | **Contained Ounces** |
| **Category** <br>| **Tonnes**<br>**(Mt)** | **Au (g/t)** | **Ag (g/t)** | **Au (Moz)** | **Ag (Moz)** |
| Proven | 0.0 | 0.00 | 0.00 | 0.00 | 0.0 |
| Probable | 121.6 | 0.97 | 5.23 | 3.80 | 20.5 |
| **Total** | **121.6** | **0.97** | **5.23** | **3.80** | **20.5** |

---

\*This Mineral Reserve estimate is as of December 30, 2020 and is based on the new Mineral Resource estimate dated July 30, 2020. The Mineral Reserve calculation was completed under the supervision of Gordon Zurowski, P.Eng of AGP, who is a Qualified Person as defined under NI 43-101. Mineral Reserves are stated within the final design pit based on a US$878/ounce gold price pit shell with a US$1,350 /ounce gold price for revenue. The equivalent cut-off grade was 0.34 g/t Au for all pit phases. The mining cost averaged $2.75/tonne mined, processing averages $14.50/tonne milled, and G&A was $1.06/tonne milled. The process recovery for gold averaged 88% and the silver recovery was 93%. The exchange rate assumption applied was $1.30 equal to US$1.00.

\*Pit slope angles ranged from 35 - 50°.

The Mineral Reserves for the Springpole Gold Project are based solely on open pit mining assumptions.

The Qualified Person responsible for the preparation of the Mineral Reserve estimates in the Springpole Technical Report has not identified any known legal, political, environmental, or other risks that would materially affect the potential development of the Mineral Reserves. The risk of not being able to secure the necessary permits from the government for development and operation of the Springpole Project exists but the Qualified Person is not aware of any issues that would prevent those permits from being withheld per the normal permitting process.

**Mining methods**

The PFS is based on open pit mining of the proposed Springpole pit. This pit is expected to provide feed material necessary to maintain the process plant feed rate at 30,000 tpd while operational.

The Springpole pit is planned as a three phased pit which will provide 121.6 Mt of ore grading 0.97 g/t Au, and 5.23 g/t Ag. Waste from this pit will total 275.4 Mt for a strip ratio of 2.3:1 (waste:ore). With the inclusion of the proposed quarry, the total waste movement will be 287.5 Mt for a life-of-mine ("**LOM**") strip ratio of 2.36:1 (waste:ore)

In addition to the pit, a quarry would be established near the plant location in the pre-production period. This quarry would be used to construct mine infrastructure including haul roads, dykes and to meet site fill requirements for other infrastructure.

The mill feed cut-off used is 0.40 g/t Au. During the mine operation material would be stockpiled to optimize the plant feed grade and defer lower-grade material until later in the mine schedule. The three grade bins used for the stockpiles included: low grade (0.40 to 0.60 g/t Au), medium grade (0.60 to 0.80 g/t Au) and high grade (over 0.80 g/t Au).

The phases are scheduled to provide 30,000 tpd of feed to the mill over an 11.3 year mine life after three years of pre-production stripping. The first two years of pre-production stripping are construction related. The last three years of mining are stockpile reclaim. The pits are sequenced to minimize initial stripping and provide higher feed grades in the early years of the mine life which the stockpiling strategy accomplishes.

The pits will be built on 12 m benches with safety berms placed every 24 m. Inter-ramp angles vary from 39 to 54° in rock depending upon the wall orientation. Overburden will use a 30° inter-ramp angle with 12 m between berms. Minimum mining widths of 35 to 40 m were maintained in the design with preferred bench widths of 60 m or more. Ramps will be at maximum 10% gradient and vary in width from 27.1 m (single lane width) to 35.4 m (double lane width). They have been designed for a 226 t haulage truck.

*Page 43*

The main fleet is planned to consist of three 251 mm rotary drills, two 36 m<sup>3</sup> electric hydraulic shovels and one 23 m<sup>3</sup> front-end loader. The truck fleet is planned to total seventeen 240 t trucks at the peak of mining. This is due to the long hauls from the pit to the waste storage facilities ("**WSF**") as well as the backhaul of tailings material from the plant. The usual assortment of dozers, graders, small backhoes, and other support equipment is considered in the equipment costing. A smaller front-end loader (13 m<sup>3</sup>) will be stationed at the primary crusher.

In the pre-production years -3 and -2, 3.9 Mt will be mined within the quarry area. This mining will be with 91 t trucks, 6 m<sup>3</sup> excavators and smaller track drills, more suited to this type of work, preparing the site for the larger, more productive, equipment. Year -1 is the start of major mining activity using the larger equipment when the bay dewatering has advanced sufficiently for mining and the site infrastructure (power lines, roads, etc.) is in place. The early phases provide the highest grade to the mill early in the schedule. The open pit will be in operation until Year 9 followed by three years of stockpile reclaim to feed the plant. When the open pit is complete, the larger mining fleet will move to complete the quarry area, dumping the material into the open pit. This will serve to cover the slopes in the pit for reclamation purposes.

Waste material from the pit will be stored in the WSF. Non-acid generating ("**NAG**") material will be used for the outer berms while potentially acid generating material will be co-mingled with filtered tails. The filtered tails will be backhauled from trucks returning from dropping material at the plant either as feed or placed in the stockpiles. As the WSF advances upwards, re-sloping of the sides will be occurring to allow for concurrent reclamation and reducing the visual impact of the facility. The majority of the waste rock will be contained within the WSF (196.6 Mm<sup>3</sup>), but a small portion of NAG material will be backfilled into Phase 2 of the open pit near the end of the mine life. This will reduce the overall haul length and will help in pit reclamation. A total of 9.8 Mm<sup>3</sup> will be backfilled into the pit.

**Processing and recovery operations**

The process plant will be designed using conventional processing unit operations. It will treat 30,000 tpd or 1,250 t/h based on an availability of 8,059 hours per annum or 92%. The crusher plant section design is set at 75% availability and the gold room availability is set at 52 weeks per year including two operating days and one smelting day per week. The plant will operate with two shifts per day, 365 days per year, and will produce gold doré bars.

The plant feed will be hauled from the mine to a crushing facility that will include a gyratory crusher as the primary stage before being conveyed to the crushed ore stockpile. The crushed ore will be ground by a SAG mill, followed by a closed circuit of a ball mill with a hydro-cyclone cluster. The hydro-cyclone overflow with P80 of 150 mesh (106 µm) will flow to a three-stage flotation circuit including rougher flotation, rougher scavenger flotation, and cleaner flotation. Flotation tailings will report to the tailings leaching and CIP circuit. Flotation concentrate will report to a closed loop cyclone cluster and IsaMill before reporting to the concentrate leach and CIP circuit.

Gold and silver leached in the CIP circuits will be recovered onto activated carbon and eluted in a pressurized Anglo American Research Laboratory style elution circuit and then recovered by electrowinning in the gold room. The gold-silver precipitate will be dried in a mercury retort oven and then mixed with fluxes and smelted in a furnace to pour doré bars. Carbon will be re-activated in a carbon regeneration kiln before being returned to the CIP circuits. CIP tails will be treated for cyanide destruction prior to pumping to a final tails thickener and pressure filter. Filter cakes will be hauled to the WSF for disposal.

*Page 44*

The installed power for the process plant will be 58 MW and the power consumption is estimated to be 32 kWh/t processed. Raw water will be pumped from Birch Lake to a raw-water storage tank. Potable water will be sourced from the raw-water tank and treated in a potable water treatment plant. Gland water will be supplied from the raw-water tank. Process water will primarily consist of water reclaimed from the final tails thickener and pressure filters. Reagents will include pebble lime, sodium cyanide, sodium hydroxide, copper sulphate pentahydrate, hydrochloric acid, sodium metabisulphite, activated carbon, flocculant, coagulant, collector, and frother. The selected flowsheet is shown in the below figure.

![](firstmining_ex991img62.jpg)

**Infrastructure, permitting and compliance activities**

Key project infrastructure as envisaged in the PFS includes: open pit mine area including mine haul roads and ramps; dykes for hydraulic isolation of the mine pit following bay dewatering; site main access roads, administrative access roads and maintenance roads, site main gate and guard house; administration and dry building, construction and permanent camp accommodations; process plant e-room; crushing area e-room; control room; reagent storage building; gold room; assay laboratory and sample preparation area; plant workshop and warehouse; truck shop and warehouse, tire changing facility, truck wash building; fuel facility, fuel storage and dispensing; fresh water intake; 230 kV overland and 25 kV underground power distribution lines; fresh water intake pumping supply and treatment; WSF, contact water collection ponds; waste water treatment plant and explosives magazine.

*Page 45*

The main access road will be a private extension of the existing Wenesaga Road which is primarily used for forestry services and has been constructed up to 15 kilometres from the project site.

Approximately 58 MW of electrical demand would be supplied via a new 230 kV overhead transmission line, built to connect to the provincial grid's 230 kV line approximately 75 km to the southeast. A 230kV / 25kV transformer would provide step down prior to feeding a total of six electrical rooms. Variable frequency drives have been allowed where required and all medium-voltage motors or drives are planned to be supplied in 4.16 kV.

Two dykes are planned to be constructed to isolate the area of the proposed open pit and facilitate mining following dewatering. A secant pile wall and grout curtain will be installed within the rockfill to establish a hydraulic barrier.

A single WSF will be constructed west of the open pit for storage of tailings produced from mineral processing and PAG waste rock generated from open pit mining. The WSF will store approximately 76 Mm<sup>3</sup> of tailings and 41 Mm<sup>3</sup> of PAG waste rock within a cell. Structural stability of the facility will be provided by perimeter embankment dams constructed with NAG waste rock generated from open pit mining. Surface water run-off from the facility will be removed and stored in a contact water management pond (CWMP), to be located south of the WSF, to limit infiltration of water into the waste materials following placement. An engineered cover is conservatively considered in closure, to promote surface run-off and limit seepage, and will be further evaluated through the Environmental Assessment ("EA") process.

First Mining and its predecessor Gold Canyon have been collecting environmental baseline data to support the Springpole Project's EA since 2010, and data collection is ongoing. These studies are primarily focused on characterizing biological and physical components of the aquatic and terrestrial environments that may be impacted by and may interact with the proposed Springpole Project. We believe that the dataset compiled to date within these programs exceeds the level of environmental baseline data one would typically have in support of a PFS.

The area of Springpole Lake that will be dewatered spans approximately 150 hectares and displays significant variation in lakebed elevation, with the deepest point reaching an approximate maximum depth of 40 m (El. 353 masl). This activity will affect fish habitat. First Mining will continue working with Fisheries and Oceans Canada (DFO) to develop off-setting measures that will help to mitigate any short or long-term effects to local fish communities.

First Mining will fully consider the concerns and issues associated with potential adverse environmental effects, as appropriate, to the Indigenous peoples in terms of proximity, historic resources, land and resource use, physical and social effects (including health) on their communities, as well as economy, employment, cultural heritage, in the EA process.

Preliminary environmental design criteria have been developed for project features that have the potential to release contaminants into the air, water, and land. First Mining will also develop an environmental, health and safety ("**EHS**") management system to address the EHS needs of the Springpole Project based on the results of the Environmental Impact Statement.

*Page 46*

On February 23, 2018, we submitted a Project Description to the Impact Assessment Agency of Canada (the "**IAAC**"). IAAC determined an EA is required for the Springpole Project under the *Canadian Environmental Assessment Act* (2012) ("**CEAA**"). We have also entered into a voluntary agreement with the Ontario Ministry of Environment, Conservation and Parks to undertake an Individual EA under Section 3.0.1 of the provincial Environmental Assessment Act.

We published an EIS for the Springpole Project in June 2022. The EIS was developed to also meet the regulatory requirements associated with the provincial voluntary agreement to undertake an individual EA.

In addition to the requirement for assessment under CEAA, 2012, key federal permits that may be required pending further regulatory advice:

· Fisheries Act Authorization (Fisheries and Oceans Canada (DFO))

· Canadian Navigable Waters Act (Transport Canada)

· Schedule 2 of Metal and Diamond Mining Effluent Regulations (MDMER)

Prohibitions under other pieces of federal legislation also apply but no permitting requirements are currently expected. These may include, but would not necessarily be limited to, the following:

· Canadian Environmental Protection Act, SC 1999

· Migratory Birds Convention Act, SC 1994, c22

· Explosives Act, RSC 1985, C. E-17

· Transportation of Dangerous Goods Act, SC 1992, c. 34

· Species at Risk Act, SC 2002; c. 29

· Nuclear Safety Control Act, SC 1997, c. 9)

Based on the current understanding of the Springpole Project area and project description provided by First Mining, it is expected that the following permits and approvals will be required:

· Mine Closure Plan, Mining Act, Energy, Northern Development and Mines

· Permit to Take Water, Ontario Water Resources Act, MECP

· Environmental Compliance Approval (Air/Noise), Environmental Protection Act, MECP

· Environmental Compliance Approval (Sewage), Ontario Water Resources Act, MECP

· Environmental Compliance Approval (Waste), Environmental Protection Act, MECP

· Work Permit, Public Lands Act, Ministry of Natural Resources and Forestry (MNRF)

· Work Permit, Lakes and Rivers Improvement Act, Ministry of Natural Resources and Forestry (MNRF)

· Aggregate Permit, Aggregate Resource Act, MNRF

· Overall Benefit Permit, Endangered Species Act, MECP

· Forestry Resource Licence/Release of Reservation, Crown Forest Sustainability Act, MNRF

· Archaeological Clearance, Ontario Heritage Act, Ministry of Heritage, Sports, Tourism, and Culture Industries (MHSTCI)

The federal government identified Cat Lake First Nation, Slate Falls First Nation, Lac Seul First Nation, Wabauskang First Nation, Mishkeegogoamang Ojibway Nation, Ojibway Nation of Saugeen, and Métis Nation of Ontario in 2018 (updated in 2020), while in 2018 the provincial government identified Cat Lake First Nation, Slate Falls First Nation, Lac Seul First Nation, Wabauskang First Nation, Mishkeegogoamang Ojibway Nation, Ojibway Nation of Saugeen, Pikangikum First Nation, and Métis Nation of Ontario, as potentially impacted by the Springpole Project or having an interest in the project.

*Page 47*

In March 2017, the First Nations of Cat Lake, Slate Falls and Lac Seul entered into a Shared Territory Protocol Agreement. These three First Nations are known collectively as the Shared Territory Protocol Nations ("**STPN**"). In February 2018, we entered into a Negotiation Protocol Agreement with the STPN and will continue information sharing and consultation throughout the EA process.

**Capital and operating costs**

The cost estimate for the Springpole Project is based on an engineering, procurement, and construction management ("**EPCM**") implementation approach.

**Operating Costs**

The operating costs for a mine at the project have been estimated from base principles with vendor quotations for repair and maintenance costs and other suppliers for consumables. Key inputs to the mine cost are fuel and labour. The price provided for the project was $0.80/L (US$0.60/L) delivered to the site. The mine truck and support equipment fleets will be diesel powered. The large production drills, hydraulic shovels and dewatering pumps will be electric powered, and the cost estimate used an electricity price of $0.08/kWh (US$0.06/kWh).

Labour costs are based on an owner-operated scenario whereby we would be responsible for the maintenance of the equipment with our own employees.

The mining fleet will be leased to help lower capital costs and payments are included in the operating cost. The mining cost is shown as both cost per tonne mined and cost per tonne moved. This is due to the large quantity of tailings backhaul included in the operating cost. The cost per tonne mined is $2.75/t mined (US$2.06/t mined) or $1.94/t moved (US$1.46/t moved). The cost per tonne milled over the LOM is $8.69/t milled (US$6.52/t milled).

The annual process operating cost is estimated at $158.8 M (US$119.1 M) and will average $14.50/t milled (US$10.87/t milled) over the LOM.

The G&A cost is estimated at $11.57 M (US$8.68 M) and will average $1.06/t milled (US$0.79/t milled) over the LOM.

The life of mine operating cost estimate for the Springpole Project is shown in the table below.

---

| | | |
|:---|:---|:---|
| **Operating Cost** | **Life of Mine Cost (US$ M)** | **Cost (US$/t Processed)** |
| Mining | 793 | 6.52 |
| Processing | 1323 | 10.87 |
| G&A | 96 | 0.79 |
| **TOTAL** | **2212** | **18.18** |

---

**Capital Costs**

The capital cost estimate has an accuracy of -20% / +30% (AACE Class 4). The estimate includes the cost to complete the design, procurement, construction, and commissioning of all the identified facilities. The estimate was based on the traditional EPCM approach where the EPCM contractor would oversee the delivery of the completed project from detailed engineering and procurement to handover of a working facility.

*Page 48*

The estimate was derived from a several fundamental assumptions as indicated in process flow diagrams, general arrangements, mechanical equipment list, electrical equipment list, material take offs, electrical layouts, scope definition and a work breakdown structure. The estimate included all associated infrastructure as defined by the scope of work.

The capital cost estimate for the Springpole Project is summarized in the table below.

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Cost Type** | **Cost Description** | **Project Capital (US$ M)** | **Project Capital (US$ M)** | **Project Capital (US$ M)** |
| **Cost Type** | **Cost Description** | **Initial** | **Sustaining** | **Total** |
| Direct | Mine | 144.5 | 51.3 | 195.8 |
| Direct | Site Development | 21.0 | - | 21.0 |
| Direct | Process Plant | 296.7 | 4.2 | 300.9 |
| Direct | On-site Infrastructure | 38.4 | - | 38.4 |
| Direct | Off-site Infrastructure | 35.3 | - | 35.3 |
| Direct | **Direct Subtotal** | **535.9** | **55.5** | **591.4** |
| Indirect | Indirects | 47.9 | - | 47.9 |
| Indirect | EPCM Services | 37.5 | - | 37.5 |
| Indirect | Owner's Costs | 16.1 | - | 16.1 |
| Indirect | **Indirect Subtotal** | **101.4** | **-** | **101.4** |
| Provisional | Contingency and Management Reserve | 80.9 | - | 80.9 |
| Closure | Closure Costs | - | 29.5 | 29.5 |
| **Total** | **Total** | **718.3** | **85.0** | **803.3** |

---

**Economic Analysis**

The mine plan is based on Indicated Mineral Resources that have been converted to Probable Mineral Reserves.

An economic model was developed to estimate annual pre-tax and post-tax cash flows and sensitivities of the Springpole Project based on a 5% discount rate. It must be noted that tax estimates involve complex variables that can only be accurately calculated during operations and, as such, the after-tax results are approximations. A sensitivity analysis was performed to assess the impact of variations in metal prices, head grades, initial capital cost, total operating cost, foreign exchange rate, and discount rate.

The capital and operating cost estimates developed specifically for the Springpole Project are in Canadian dollars and converted with the stated exchange rate. The economic analysis has been run on a constant dollar basis with no inflation.

The economic analysis was performed using the following assumptions:

· gold price of US$1,600/oz, silver price of US$20/oz

· LOM of 11.3 years

· exchange rate of US$0.75 per $1.00

· cost estimates in constant Canadian dollars with no inflation or escalation

· 100% ownership with 1.3% NSR; (assumes buy back of 1.4% NSR)

· capital costs funded with 100% equity (no financing costs assumed)

· closure cost of US$29 M

· Canadian corporate income tax system consists of 15% federal income tax and 10% provincial income tax

· Ontario applies a mining tax rate of 10%

· total undiscounted tax payments are estimated to be US$720 M over the LOM

The pre-tax net present value ("**NPV**") discounted at 5% is US$1,482 M; the IRR is 36.4%; and the payback period is 2.2 years. On an after-tax basis, the NPV discounted at 5% is US$995 M; the IRR is 29.4%; and the payback period is 2.4 years.

*Page 49*

A summary of the project economics is shown in the following figure and table.

![](firstmining_ex991img63.jpg)

---

| | | |
|:---|:---|:---|
| **General** | **Units** | **LOM Total / Avg.** |
| Gold Price | **US$/oz** | **1600** |
| Silver Price | **US$/oz** | **20.00** |
| FX | **$:US$** | **0.75** |
| **Production** | **Production** | **Production** |
| Mine Life | yr. | 11.3 |
| Mined Ore | kt | 121636 |
| Mined Waste | kt | 287532 |
| Strip Ratio | w:o | 2.36 |
| Daily Throughput | tpd | 30000 |
| Total Mill Feed | kt | 121636 |
| **Gold**  | **Gold**  | **Gold**  |
| Mill Head Grade Au | g/t | 0.97 |
| Mill Recovery Au | % | 85.7% |
| Total Payable Ounces Au | koz | 3225 |
| Average Annual Payable Au | koz | 287 |
| **Silver**  | **Silver**  | **Silver**  |
| Mill Head Grade Ag | g/t | 5.2 |
| Mill Recovery Ag | % | 89.5 |
| Total Payable Ounces Ag | koz | 18117 |
| Average Annual Payable Ag | koz | 1610 |
| **Operating Cost** | **Operating Cost** | **Operating Cost** |
| Mining - mined | US$/t mined | 2.06 |
| Mining - milled | US$/t milled | 6.52 |
| Processing | US$/t milled | 10.87 |
| G&A | US$/t milled | 0.79 |
| Total | US$/t milled | 18.18 |
| **Capital Cost**  | **Capital Cost**  | **Capital Cost**  |
| Initial Capex | US$M | 718 |
| Sustaining Capex | US$M | 55 |
| Closure Cost | US$M | 29 |
| **Operating Costs per Ounce**  | **Operating Costs per Ounce**  | **Operating Costs per Ounce**  |
| Cash Costs (net) | US$/oz | 618 |
| AISC (net) | US$/oz | 645 |
| Cash Costs | US$/oz AuEq | 673 |
| AISC | US$/oz AuEq | 698 |
| **Pre-Tax Economics**  | **Pre-Tax Economics**  | **Pre-Tax Economics**  |
| NPV (5%) | US$M | 1482 |
| IRR | % | 36.4 |
| **Post-Tax Economics** | **Post-Tax Economics** | **Post-Tax Economics** |
| NPV (5%) | US$M | 995 |
| IRR | % | 29.4 |
| Payback | yr. | 2.4 |

---

\* Cash costs consist of mining costs, processing costs, mine-level G&A and refining charges and royalties. *Please see "Non-IFRS Financial Measures" at the beginning of this AIF.*

\* AISC includes cash costs plus sustaining capital and closure costs. AISC is at a project-level and does not include an estimate of corporate G&A. *Please see "Non-IFRS Financial Measures" at the beginning of this AIF.*

*Page 50*

**Exploration, development and production**

As discussed above, during the winter of 2019 - 2020, we initiated a program of core re-sampling in order to quantify the sulphur content of the in-pit material. A total of 8,358 samples were collected for total sulphur assays, along with 611 samples collected for bulk density determination.

We completed several field programs throughout 2020, with the primary purpose of collecting additional data to advance the metallurgical, geotechnical, hydrogeological, and environmental studies at the Springpole Project through PFS-level and beyond. Diamond drilling was undertaken to collect samples for metallurgical and geotechnical test work.

The geotechnical program targeting the pit wall area consisted of drilling and logging of inclined HQ size boreholes, packer tests, fracture surveys using acoustic televiewer, rock testing (point load tests and Brazilian tests), and multi-level piezometer installation.

In addition, a detailed geotechnical field testing and sampling program was completed over the areas of proposed mine infrastructure, which included test pit excavations (for overburden investigation), hand auguring, NQ-size borehole drilling, and ground penetrating radar surveys in selected locations.

A program of condemnation drilling targeting key infrastructure areas was also commenced in 2020 and continued in 2021. Additional mapping and sampling of nearby trachyte outcrops was completed during the summer months and further exploration on these areas and other potential targets outside of the main resource area continued in 2021.

**Recent developments**

In Q3 2020, a program of condemnation drilling was initiated in the areas of proposed mine infrastructure, with 2,218 m of drilling completed in 20 drill holes.

In 2021, a total of 55 drill holes were completed, totaling 8,748 m... The program consisted of 3 drill holes for acid rock drainage ("ARD") test work (231 m), 5 condemnation drill holes (1,030 m), 30 geotechnical drill holes (3,270 m), some of which were also utilized for hydrogeological and ARD data collection, and 6 exploration holes (1,545 m). One vertical drill hole (40 m) was also completed on the southeastern side of the mine area for potential future use as a long-term monitoring well site for hydrogeological data collection. The metallurgical drilling program consisted of 2,632 m of drilling in ten drill holes to collect additional material within the proposed open pit for ongoing metallurgical test work including flowsheet optimization, variability testing, additional flotation studies and materials handling testing. A total of 2.4 tonnes of metallurgical samples were collected from the ten drill holes to form three production composites that underwent advanced metallurgical testing, as well as ten variability composites.

*Page 51*

In 2022, a total of 62 drill holes for 5,834 m were completed to support development advancement for the Springpole Project, including geotechnical, hydrogeological, and geochemical studies. Geotechnical drilling consisted of 34 HQ-sized diamond drill holes totaling 3,756 m supporting further characterization of the proposed open pit walls, the proposed construction dykes and additional areas of proposed mine infrastructure. A further 10 diamond drill holes totaling 1,612 m were completed in order to collect sample material for the ongoing metal leaching/ARD studies on the project. This drilling primarily targeted areas of waste and low grade within the PFS pit for ARD sample collection. Selected core samples from the geotechnical drill program were also utilized for the ARD test work program. The 2022 hydrogeology drilling formed part of ongoing hydrogeological site investigations required to support the Environmental Assessment ("EA") process. at Springpole. Drilling totaled 18 diamond drill holes over 406 m and included a program of shallow monitoring well installations which were positioned around proposed mine infrastructure areas and are intended for long-term groundwater data collection.

**Regional Land Consolidation**

We significantly increased our mineral tenure in the immediate vicinity of the Springpole Project in 2021 through acquisitions and option agreements, resulting in a current total controlled area of approximately 74,000 Ha throughout the Birch Uchi Greenstone Belt ("**BUGB**") (see the section in this AIF entitled "*About First Mining – Three-year history*" for more details about these transactions). BUGB is historically underexplored and has only seen a fraction of the exploration work that has been done in the neighbouring Red Lake and Pickle Lake greenstone belts. The region has seen increased exploration activity to the north and west of Springpole over the last two years. Historically the BUGB has hosted several past-producing gold mines including: Argosy – which produced approximately 100,000 oz. at 11.4 g/t Au; Uchi – with a reported 114,000 oz. at 4.7 g/t Au; and a number of smaller gold and base metal mines including the Jackson, Manion, Hudson-Patricia, Bathurst and Sol d'Or mines, which produced gold in the 1930s at reported grades of 17.5 g/t Au.

First Mining significantly increased its mineral tenure in the region in 2021 through acquisitions and option agreements, resulting in a current total controlled area of approximately 74,000 Ha (including the Springpole Project) in the district. Prospective targets in this new mineral tenure include the past-producing high-grade Sol d'Or mine; the Swain property, the Vixen North property - located nearby the past-producing Argosy mine - and the Birch Property, which includes the HGI prospect where historical drilling has intersected gold grades up to 245 g/t.

The following map shows, in green, all of the land we own (through our wholly-owned subsidiary, Gold Canyon) that currently comprises the Springpole Project and surrounding area, as well as all of the land in the immediate vicinity in respect of which we have entered into option or earn-in agreements (these are reflected in various colours):

![](firstmining_ex991img64.jpg)

*Page 52*

In 2021, we completed a regional data compilation and targeting exercise on the BUGB, and conducted district scale gold occurrence reconnaissance on First Mining's claims. In total, 45 gold occurrences were visited, and 191 rock samples were analyzed for multi-element geochemistry.

During the summer of 2022, we followed up and expanded on our 2021 targeting work with a comprehensive field program consisting of soil geochemistry, mapping, prospecting and drilling. The soil geochemistry campaign was focused on prospective areas including four of the option properties to advance regional scale vectoring. A total of 705 soil samples were collected during this campaign. Mapping & prospecting campaigns were carried out on the Birch, Swain, Vixen, Stargazer, Horseshoe East and Satterly properties, where more than 500 grab samples were collected and submitted for gold and multi-element analysis. A targeted exploration drilling campaign was carried out on the Swain property, which consisted of a 5-hole drill program totaling 1,557 m.

In October 2022, we completed a 3,843 line kilometre geophysical airborne survey over portions of the Birch-Uchi land tenure, benchmarking and vectoring regional scale magnetic and electromagnetic features for supporting exploration targeting through the use of integrated datasets for 2023 and beyond. The geophysical survey provides a core supplement to the existing geophysical coverage in the region and was successfully supported by industry-leading service providers and partners in SkyTEM and Mira Geoscience.

**Technical Programs since the Springpole PFS**

Since completing the PFS for Springpole in January 2021, First Mining has been engaged in a number of significant technical programs to further optimize the development plan for Springpole and to further define the project scope for the Environmental Assessment ("EA") process and into the Feasibility Study ("FS") process. These programs are ongoing and include FS-level metallurgical test work, geotechnical drilling and site investigation to support FS-level preliminary pit slope, dyke and Co-Disposal Facility design work, an update to the Mineral Resource estimate in the PFS incorporating recent drilling results, completion of a power connectivity study, further review of opportunities to reduce the project's greenhouse gas footprint ("GHG"), exploring renewable power generation opportunities, additional environmental data collection, predictive environmental effects modelling and studies, and EIS/EA document preparation.

<u>Metallurgical Program</u>

Subsequent to the completion of the PFS, in 2021 we completed a metallurgical drilling program consisting of 2,632 m of drilling in ten drill holes in order to collect additional material within the proposed open pit for ongoing metallurgical test work. Samples from the ten drill holes, all located within the 2021 Pre-Feasibility Study pit shell, were selected to represent the major lithologies and mineralized zones in the target mining area. A total of 2.4 tonnes of metallurgical samples were collected, to form three production composites that underwent advanced metallurgical testing, as well as ten variability composites.

The metallurgical test work program in 2021 and 2022 was designed to support the Feasibility Study on the project. Work was carried out at Base Metallurgical Laboratories Ltd. in Kamloops, British Columbia, FLSmidth Inc. in Salt Lake City, Utah, and Jenike & Johanson Ltd. in Mississauga, Ontario. The scope of the program included flowsheet optimization, testing of an alternate flowsheet, comminution and variability testing, flotation piloting and materials handling testing.

To date, the metallurgical test programs have confirmed key metallurgical test work findings from the 2021 PFS and provided a larger database of ore physical properties and metallurgical response, which will reduce the design risk of the processing facility. Its current focus is to confirm metallurgical information and the process design of the PFS and explore opportunities to enhance metal recoveries and reduce operating and capital costs for Springpole.

Initial metallurgical test work was completed at the end of Q1 2022 and based on these results an additional test work program was commenced to support finalization of the FS process flowsheet in Q3 2022.

*Page 53*

<u>GHG Footprint Reduction - Electric Assist Haul Trucks</u>

Following the completion of the PFS, we completed an analysis of potential GHG emissions from the Project and determined that opportunities exist to reduce GHG emissions by reducing diesel consumption associated with the haul trucks with the addition of trolley assist in various areas of the mine. Given that the Project is scoped to be connected to the power grid, we commissioned AGP to study the impact and benefit of a number of electric haul assist technologies. More detailed analysis is warranted and will be carried out in the FS workplan.

<u>Renewable Power Generation Opportunities</u>

We commissioned SLR Consulting Inc. ("SLR") to complete an initial scoping study of the opportunities to incorporate renewable power generation into the project development plan at Springpole. The Springpole area has the potential for economic wind and solar resources, as well as a significant biomass opportunity which has been previously studied for the region. The SLR study concluded that wind and solar were both viable potential supplemental power sources for the Project that warrant further study. In furtherance of this, we commenced in Q3 2022 site-specific data collection for wind resources and will explore opportunities with the local communities to better understand avenues for partnership in a potential renewable power development.

<u>230 kV Transmission Line Design</u>

In 2022, First Mining advanced a feasibility-level design of an 89 km, three-phase, 230 kV overhead transmission line from a tap location on the existing Wataynikaneyap Power GP ("Watay") W51W transmission line to supply electrical power to the mine site. Ontario's Independent Electricity System Operator ("IESO") continued work on a System Impact Assessment ("SIA") on the Project, which is required for the proposed new transmission line. First Mining engaged Watay to perform a Short-Circuit Study to assist the IESO in its performance of the SIA, a Protection Impact Assessment ("PIA"), and coordinate with Hydro One Networks Inc. (HONI) to ensure that the Short-Circuit Study and the PIA reflect impacts to HONI equipment and protection settings, as required. First Mining will continue to advance the Feasibility-level design for the 230kV transmission line in Q1 2023, once IESO issue the SIA.

<u>Mine Access Road Design</u>

First Mining has completed a preliminary design and alignment for a mine access road which would commence at the end of the Wenesaga Logging Road, approximately 18 km from the current camp location at Springpole.

<u>Further CDF Optimization</u>

In Q3 2022, First Mining completed further trade-off studies on the Co-Disposal Facility, which highlighted the need for additional optimization on the PFS design.

*Page 54*

<u>Environmental Data Collection</u>

The 2022 environmental field work activities involved a comprehensive program to supplement the baseline data that had been collected over several previous years. The studies covered a broad range of disciplines across the biological, physical and human environments including air quality, noise, surface water, groundwater, geochemistry, aquatic biology, terrestrial and vegetation and wildlife. Two air quality monitoring stations near the Project site have been operated to gather continuous samples.

Surface water studies included monthly surface water quality sampling at 35 locations as well as flow measurements and lake level measurements at six locations. Hydrogeological testing was conducted to improve the understanding of groundwater movement in the area and groundwater quality samples were collected at 33 monitoring wells. The geochemical characterization program included static and kinetic testing of mine rock and tailings as well as static testing of aggregate and overburden. An aerial survey was undertaken early in the year to study Boreal Caribou and other ungulates and furbearers.

Other key wildlife and habitat studies included bird and bat surveys as well as vegetation community and wetland mapping. Extensive aquatic studies were undertaken including fish community and habitat assessments, fish tissue sampling, environmental DNA studies, as well as plankton and benthic invertebrate studies. The information collected will inform the EA and we will continue to collect data on the existing environment in 2023 to support future permitting.

<u>Environmental Assessment Preparation</u>

Following a successful environmental field season and the approval of the Provincial EA Terms of Reference on November 8, 2021, WSP (previously Wood plc), on behalf of First Mining, has undertaken further studies to inform the EA documentation covering key areas of the environment at Springpole, including geochemistry, groundwater quantity and quality, surface water quality, hydrology, air quality, noise and vibration, and terrestrial components. The draft EA also includes economic modelling and highlights the economic and social benefits of the Project. The technical work has been documented and presented in draft EIS/EA reports which were published in June 2022. Consultation and engagement is ongoing to obtain feedback from Indigenous communities, regulators, and stakeholders.

<u>Key Catalysts for Springpole Project Development in 2023</u>

We are anticipating a number of important project advancements in 2023, including:

· Continuation of the FS work, including process design, open pit mine plan optimization and preliminary pit slope guidelines for the mine design

· Final results for other process and tailings facility optimization trade-off studies to be included in the FS

· Additional targeted geotechnical work for design of open pit and Co-Disposal Facility

· Commencement of other FS engineering activities such as dyke design, Co-Disposal Facility design, road access and transmission line design, and other site infrastructure requirements

· Conduct a high-level assessment of renewable energy development opportunities in and around the Project

· Completion of the IESO SIA, Watay's Customer Impact Assessment ("CIA"), and continuation of design work on the 230 kV transmission line

· Ongoing engagement and subsequent updates to the environmental effects studies and EIS/EA report

*Page 55*

**Duparquet**

**Technical report**

The description in this section of the Duparquet Project is based on the project's technical report: *NI 43-101 Technical Report and Mineral Resource Estimate Update on the Duparquet Project, Quebec, Canada* (report date: October 06, 2022; effective date: September 12, 2022) (the "**Duparquet Technical Report**"). The report was prepared for us in accordance with NI 43-101 by InnovExplo Inc. ("**InnovExplo**") under the supervision of Ms. Marina Iund, P.Geo, Mr. Carl Pelletier, P.Geo, Mr. Simon Boudreau, P.Eng, and Mr. Guy Comeau, P. Eng; all Qualified Persons within the meaning of NI 43-101. The following description has been prepared under the supervision of Louis Martin, P.Geo., a consultant of First Mining who is a Qualified Person within the meaning of NI 43-101. All currencies used in this summary of the Duparquet Technical Report are in Canadian dollars unless otherwise noted.

The conclusions, projections and estimates included in this description are subject to the qualifications, assumptions and exclusions set out in the Duparquet Technical Report, except as such qualifications, assumptions and exclusions may be modified in this AIF. We recommend you read the Duparquet Technical Report in its entirety to fully understand the project. You can download a copy of the Duparquet Technical Report from our SEDAR profile (<u>www.sedar.com</u>), or from our website (<u>www.firstmininggold.com</u>).

*Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability.*

**Project description, location and access**

The Duparquet Project is located in the province of Quebec, Canada, just north of the town of Duparquet and 50 km north of the city of Rouyn-Noranda. It lies in Duparquet Township, in the Abitibi-Ouest regional county municipality ("**RCM**"), which is part of the Abitibi-Témiscamingue administrative region. The approximate coordinates of its centre are 48°30'34"N, 79°12'34"W (UTM projection: 5374410N, 631517E, NAD83 Zone 17).

The Project can be reached by paved, two-lane, all-season provincial highways from Rouyn-Noranda (53 km to the south; Route 393 and Route 101) or La Sarre (33 km to the north; Route 393). The highways pass through parts of the Project and several gravel roads also lead onto it.

The Project comprises fifty (50) map-designated claims ("CDC") covering an area of 1,079.2 ha. It is comprised of 4 contiguous mining properties which include Beattie, Donchester, Dumico and Central Duparquet. The mining concessions for the previously registered Beattie (CM292) and Donchester (CM442) properties were voluntarily allowed to lapse in April 2021 and August 2021 respectively and have since been converted to mining claims (CDC) by the owners. The change from Mining Concession to Mining Claims are the result of an amendment to the Mining Act, Bill 70, Chapter M-13-1 relating to non mining operational mining concessions.

Project is located in Abitibiwinni First Nation territory. Claim holders within this territory are bound by the Agreement on Consultation and Accommodation between the Abitibiwinni First Nation Council and the Government of Quebec. Parts of the Project are located inside the municipal limits of Duparquet. In addition, some parts of the Project are private lands with houses and a golf course and clubhouse.

In general, the recommended work program in the Duparquet Technical Report requires minimal permitting. However, if drilling is to be carried out, we must obtain specific permits and authorizations from the relevant government agencies, including a timber permit (*Autorisation de coupe de bois sur un territoire du domaine de l'État où s'exerce un droit minier*) from the Quebec Ministry of Forests.

*Page 56*

**History**

Gold was first discovered in Duparquet Township by John Beattie in 1910.

In 1923, the first claims for the Beattie property, included in Mining Concession 292, were staked by John Beattie, for whom the property is named.

In 1924, the Victoria Syndicate optioned the Beattie property and carried out extensive trenching, but the results were not encouraging.

Between 1925 and 1927, prospecting of the Beattie property claims continued. Consolidated Mining and Smelting Company of Canada Ltd. optioned the claims. The company continued exploration by trenching and carried out some drilling.

In 1930, the Consolidated Mining and Smelting Company of Canada Ltd. dropped the option. In the same year, John Beattie discovered the Main (or North) deposit and options the property to Ventures Limited and Nipissing Mining Company Ltd. These two companies advanced capital to develop the Beattie mine. The North deposit was drilled and a two-compartment shaft was sunk to 67 m. During the sinking of the shaft, another deposit was encountered, called the "A" mineralized material zone.

Between 1931 and 1945, exploration and development was carried out on the Central Duparquet property by Dumico Gold Corp., then Central Duparquet Mines Ltd. Contemporaneous with the start of production at the Beattie mine, further west, Dumico drilled 52 surface holes to define the mineralized zone.

In 1939, Beattie Gold Mines Ltd was re-organized, becoming Beattie Gold Mines (Québec) Ltd.

Between 1938 and 1940, mine development was carried out in the Beattie mine toward the Donchester property. The Donchester property is immediately east of the Beattie property. A drift from the third level within the Beattie mine was driven across the boundary with the Donchester property for exploration purposes.

From the start of production in 1933 until the end of 1940, the mill treated 3,921,281 t of ore and recovered 471,085 oz of gold and 73,214 oz of silver, an average of 0.120 oz/t Au and 0.019 oz/t Ag (Dresser and Denis, 1949). This tonnage came from the North and A zones.

In 1941, drilling from underground stations at 152-metre intervals outlined several ore-shoots 91 m below surface within the Donchester boundary. Nine holes intersect values varying from 0.15 to 0.40 oz/t Au over widths ranging from 0.3 to 4 m. Beattie Gold Mines acquired the Donchester mine. On the strength of these results, a drift on the 6th level (330 m below surface) is driven from the Beattie shaft over to the Dumico shaft of the Central Duparquet property, cutting across Donchester ground. Cross-drilling from this drift outlined a vein 792 m in strike length and grading 0.28 oz/t Au over a two metre width on average. Peak production at the Beattie mine was reached in 1941 and 1942 at 1,900 tpd.

Between 1943 and 1944, a shaft was sunk on Donchester ground to the 6th level and connected to the previously driven drift.

*Page 57*

In 1943, a cave-in at the Beattie mine caused by a failure of the main crown pillars resulted in an inrush of about one million cubic yards of clay, sand and broken rock into the mine workings. Rehabilitation work started immediately and continued until 1950.

During the period of 1943 to 1950, mining exploration in the original Beattie mine suffered and operations were conducted at a loss. Much of the production slack was taken up by tonnage from the Donchester section which was brought on-stream sooner because of the cave-in at Beattie. Production losses were accentuated during the war years by the shortage of labour and supplies, and after 1946, by rising costs and a fixed price for gold.

In 1945, the Donchester shaft was deepened to the 9th level (457 m vertical). Development was carried out above and below the 6<sup>th</sup> level resulting in seven new levels from the 2nd to the 9th on the "South Zone" deposit. At least four levels were driven across to the "North Zone" deposit: the 4th, 5th, 6th and 8th levels. The 3<sup>rd</sup> level was also driven across from Beattie to inter-connect with the North Zone.

Operations continued on the Beattie property until 1956 when, after 23 years of almost continuous production, the mine closed. During its lifetime, the Beattie mill treated 9,645,000 t with an average grade of 4.01 g/t Au and 0.99 g/t Ag from the North zone of the Beattie mine and Donchester mine (Lavergne, 1985).

Except for a small surface exploration program in 1966, the Beattie property was dormant from 1956 to 1987. The 1966 program consisted of line cutting, an electro-magnetic survey and two holes totalling 259 m, drilled to test an EM anomaly which was found to be caused by graphite. Unfortunately, some of the old mine records were destroyed by fire and affected by water damage. The latest complete records of reserves and production (stope outlines) are now those on a January 1, 1954, longitudinal section.

In 1981, the first period of activity on the Central Duparquet property took place with SOQUEM Inc ("**SOQUEM**"). SOQUEM performed a drilling program totalling 13 holes.

In 1987, the second period of activity on the Central Duparquet property took place, first with SOQUEM followed by Cambior Inc, both companies mainly concentrating their efforts on the western part of the property. Mapping, lithogeochemical and geophysical surveys were carried out as well as eighteen (18) surface trenches and three drilling programs. The first two drilling programs carried out by SOQUEM in 1981 lead to the re-definition of property reserves (see below). The 3<sup>rd</sup> program was a drilling program conducted by Cambior in an attempt to define a near-surface mineralized zone. Various feasibility studies suggested that the deposit could be mined by open pit methods.

In 1988, a drilling program was carried out by Beattie Gold Mines, comprised of 12 holes for a total of 1,939.4 m. The holes target the "A", South and North Zones.

Between 1989 and 1990 Forbex Mining Resources Inc. re-vamped the reserves from the Central Duparquet property and undertook an 11-hole drilling program in the eastern part of the property, off the known mineralized zones to the west.

Between 1989 and 1994, Beattie Gold Mines drilled 23 holes for a total of 2,077.2 m. The holes targeted the South Zone.

Between 1994 and 1995 Fieldex Inc drilled six holes in the eastern portion of the Central Duparquet property.

*Page 58*

Between 1995 and 2003, multiple drilling programs were carried out by Beattie Gold Mines, comprising 22 holes for a total of 3,281.8 m.

In 2004, the owner of the Central Duparquet property, 9085-3615 Québec Inc, embarked on a pilot project with the objective of mining the property. No record has been found documenting this work. A drilling program was carried out by Beattie Gold Mines representing the extension of two holes drilled in 2002 and 2003 for a total of 246 m.

Between 2005 and 2007, drilling continued on the Central Duparquet property, comprised of seven holes for a total of 891 m.

Between 2008 and 2009, a drilling program was carried out by Clifton Star, comprising 209 holes (58,053 m) on the Beattie property and 99 holes (37,566 m) on the Donchester property.

In 2010, under the terms of a joint venture agreement with Osisko Mining Corp. ("**Osisko**"), the latter becomes the operator of a drilling program which comprised 314 holes for a total of 102,529 m on the Beattie and Donchester properties. Osisko also carried out a channel sampling program consisting of 220 channels (460 m of cut channels) to complement the drilling program. Osisko contracted SGS Mineral Service (Lakefield, Ontario) to conduct test work on Beattie Duparquet Project samples. The program included comminution test work and preliminary cyanidation and flotation tests to investigate the recovery of gold.

During December 2010 and January 2011, Geophysics GPR International Inc. flew a helicopter-borne magnetic and time-domain electromagnetic geophysical survey for Osisko Mining Corporation's Duparquet Project. The survey was composed of one (single block and covers all Duparquet Project. Osisko contracted SGS Canada Inc. ("**SGS**") (Geostat) to prepare a NI 43 101 compliant Mineral Resource Estimate on the Beattie sector only.

Also in 2011, Clifton Star continued drilling the Beattie and Donchester properties and starts drilling the Central Duparquet property. A total of 46 holes and 28 holes extensions were drilled for a total of 17,565 m.

In 2012, Clifton Star completed surface outcrop stripping on and in the vicinity of the RWRS Zone, South Zone and the North Zone. A total of 19 outcrops on Beattie, nine on Donchester and one (on Central Duparquet properties were mechanically stripped and then sampled using a conventional channelling technique. The primary goal for the stripping and channel sampling was to test and verify the gold mineralization continuity up to surface. Clifton Star decided to resample 50 of the company's previous holes that had been selectively sampled at the time of drilling. The selective nature of the sampling resulted in untested shoulders adjacent to mineralized zones.

From January to the end of August 2012, Clifton Star drilled a total of 35 new holes and eight extensions of older holes. Overall, the drilling program produced 12,471 m of NQ-size core during this period. From September 2012 until January 2013, Clifton Star continued drilling the Duparquet properties. A total of 53 drill holes and ten drill hole extensions were completed during this period, for a total of 22,675 m of NQ-size core. Clifton Star contracted Tenova Mining & Minerals - Bateman Engineering Pty to develop preliminary capital and operating costs for the construction and operation of a mineral processing plant to process from the Duparquet Project to produce gold doré. The purpose of the study was to assess the viability of the Total Pressure Oxidation, Albion ProcessTM and Biox® Leaching technologies to treat gold rich concentrate from the Duparquet mine deposits, in order to produce gold doré bar and to provide capital and operating cost estimates to a level of accuracy of ±35% for the proposed three flowsheets.

*Page 59*

Also in 2012, Clifton Star contracted SGS (Lakefield, Ontario) to conduct test work on Duparquet Project samples. The program included flotation, pressure oxidation and cyanidation test work to investigate the recovery of gold from ore and tailing samples. Preliminary comminution and environmental tests were also conducted.

In fall of 2012, 15 of the 19 holes of the Dumico property were entirely resampled and/or downhole surveyed by Clifton Star. Down-hole orientation surveys were done using a Gyroscope instrument.

In 2013, Clifton Star sent to SGS a 12 t composite bulk sample of the Duparquet Project mineralized zones, from large diameter drill core, for metallurgical and environmental pilot tests. The planned test work included a continuous pilot plant test for POX and also for high grade gold concentrates production. Results received in September 2013 confirmed previous recoveries. Clifton Star began a surface outcrop stripping program on and in the vicinity of the RWRS Zone, South Zone and the North Zone. A total of 41 outcrops on Beattie property were mechanically stripped and then sampled using a conventional channelling technique. The primary goal for the stripping and channel sampling was to test and verify the gold mineralization continuity up to surface.

Also in 2013, Clifton Star decided to resample eight of the company's previous holes that had been selectively sampled at the time of drilling. The selective nature of the sampling resulted in untested shoulders adjacent to mineralized zones. Clifton Star's re-sampling program successfully filled in the gaps in these holes. A drilling program is carried out by Clifton Star, comprising 92 holes (16,773.5 m) on the Beattie, Donchester and Central Duparquet properties.

**Geological setting, mineralization and deposit types**

The Project is located in the southern portion of the Superior Province, within the Abitibi terrane. The Project straddles syenitic plutons and the Kinojevis, Duparquet and Mont-Brun formation. The Project area is characterized by the presence of two syenitic plutons oriented E-W. These intrusions are bounded by E-W major faults, which are interpreted as splays of the main SE-trending Destor-Porcupine-Manneville Fault Zone ("DPMFZ"), which clips the southwest corner of the Project. The geological formations generally strike E-W and dip steeply (80°-85°) to the north. The metamorphic grade is low (greenschist facies), and local alteration is represented by chloritization, silicification and sericitization.

The rocks underlying the Project are generally made up of intercalated felsic and mafic metavolcanic flows, with the felsic flows being the oldest. Metasedimentary layers are also present and are generally more prevalent on the south side of the DPMFZ. All the units have been intruded by syenite porphyry units, which appear to be concordant with the location of the major fault zones. Quartz feldspar and lath porphyries were injected along minor faults affecting the syenite intrusions.

The predominant structures on the Project are the E-W splays of the DPMFZ. The Beattie Fault Zone ("BFZ") is located along the north contact of the main syenite body, whereas the Donchester Fault Zone ("DFZ") is located along the south contact. The Central Duparquet Fault Zone ("CDFZ") is located along the south contact of the second smaller syenite intrusive to the east. The syenite porphyry generally plunges to the east.

According to Bevan (2011), the "main" type of gold mineralization in the Duparquet deposit generally occurs within shears or brecciated zones along or within the adjacent intrusive syenitic masses and is associated with finely disseminated pyrite and minor arsenopyrite replacement. Sulphide content is generally low (0.5 to 4%), although it can be up to 10% in some cases. Higher gold grades appear to be related to the finer-grained sulphides. Historically, gold production at the Beattie mine was accompanied by the extraction of arsenic trioxide and silver as by-products. The "breccia" type of mineralized material is found within the metavolcanic rocks (volcanics and tuffs) and consists of well-mineralized, siliceous, brecciated, grey-coloured and bleached zones. The porphyry-type mineralized material consists of fine-grained and strongly silicified mineralized zones hosted by porphyry intrusives.

*Page 60*

The typical mineral assemblage in mineralized zones of all types is characterized by feldspar, quartz, sulphides (pyrite and arsenopyrite), sericite, chlorite and other secondary minerals. Mill tests suggest that some 35% of the gold is in a free state, with the remainder associated with sulphides (Bevan, 2011).

The standard orogenic gold model characterizes the majority of gold deposits within the Abitibi belt.

However, several examples of late mineralization are associated with alkaline intrusions (Robert, 2001), thus differing from the standard orogenic gold model. Syenite-associated disseminated gold deposits in the Abitibi greenstone belt consist of zones of disseminated sulphides with variably developed quartz stockworks, which are intimately associated with Timiskaming-age, monzonitic to syenitic porphyry intrusions (Robert, 2001). Like quartz-carbonate vein deposits, all known syenite-associated disseminated gold deposits in the southern Abitibi belt occur along a major fault. Examples of these deposits are Young-Davidson, Matachewan Consolidated, Ross, Holt-McDermott, and Lightening in Ontario; and Beattie, Douay, Canadian Malartic, East Malartic, and Barnat-Sladen in Quebec.

**Exploration**

We have not yet performed exploration work on the Project.

**Drilling**

We have not yet carried out drilling programs on the Project.

Since February 28, 2013, 57 holes (9,548 m) have been drilled on the Project by Clifton Star, Beattie Gold Mines, and 258 Manitoba.

Clifton Star's 2013 drilling program ran from May 6, 2013, to August 2013. 47 holes were drilled on the Project during this period for 7,422 m of NQ-sized core.

Between 2014 and 2018, Beattie Gold Mines drilled five holes on the Beattie Project, at a rate of one hole per year, for a total of 1,088 m. The main purpose of this was drilling was to meet minimum annual expenditures required to keep the Mining Concession in good standing.

Between 2014 and 2018, 258 Manitoba drilled five holes on the Donchester Project, at a rate of one hole per year, for a total of 1,039 m. The main purpose of this was drilling was to meet minimum annual expenditures required to keep the Mining Concession in good standing.

*Page 61*

**Sampling, analysis and data verification**

The following paragraphs describe the sample preparation, analyses, and security procedures during the drilling programs carried out between May 6, 2013, and the end of 2018, on the Duparquet Project.

The drill core was boxed, covered and sealed at the drill rigs, and transported by the drilling company employees to the core logging facility at the Beattie mine, where personnel took over the core handling.

The core was logged and sampled by (or under the supervision of) geologists, all of whom are members in good standing of the OGQ (Quebec's professional order of geologists). A geologist marked the samples by placing a unique identification tag at the end of each core sample interval. Sample contacts respect lithological contacts and/or changes in the appearance of mineralization or alteration (type and/or strength). A technician sawed each marked sample in half. One half of the core was placed in a plastic bag along with a detached portion of the unique bar-coded sample tag, and the other half was returned to the core box with the remaining tag portion stapled in place. The core boxes were stored in outdoor core racks for future reference. Individually bagged samples were placed in security-sealed rice bags along with the sample list for delivery to the assay laboratory.

One (1) blank and one (1) certified reference material ("CRM" or "standard") were inserted for every twenty (20) samples. The laboratory was also asked to assay one (1) pulp duplicate for every twenty (20) samples.

For every 100 samples sent to the laboratory, the numbers ending in the following digits represent QA/QC samples:

· 15, 35, 55, 75, or 95 = standard;

· 17, 37, 57, 77, or 97 = pulp duplicate of preceding sample;

· 20, 40, 60, 80, or 00 = blank.

The International Organization for Standardization ("ISO") and the International Electrotechnical Commission ("IEC") form the specialized system for worldwide standardization. ISO/IEC 17025 General Requirements for the Competence of Testing and Calibration Laboratories sets out the criteria for laboratories wishing to demonstrate that they are technically competent, operating an effective quality system, and able to generate technically valid calibration and test results. The standard forms the basis for the accreditation of competence of laboratories by accreditation bodies.

Samples from the 2013 to 2018 drill programs were sent to Techni-Lab S.G.B. Abitibi Inc. ("Techni-Lab") in Sainte-Germaine-Boulé, Quebec, for preparation and analysis. Techni-Lab received ISO/IEC 17025 accreditation through the Standards Council of Canada ("SCC"). Techni-Lab is a commercial laboratory independent of the issuer and has no interest in the Project.

Samples were analyzed for gold using fire assay with atomic absorption spectroscopy ("AAS") finish. The nominal sample weight was 50 g. The methodology is described as follows:

· Samples are sorted, bar-coded and logged into the Techni-Lab LIMS program before being placed in the sample drying room.

· Samples are crushed in their entirety to 85% passing 8 mesh (2.4 mm) using either an oscillating jaw crusher or a roll crusher. A 250 to 300 g fraction derived from the crushing process is pulverized using a ring mill to 90% passing 150 mesh (106 µm).

· Assay results are provided in Excel spreadsheets, and the official certificate (signed and sealed) is provided as a PDF file.

· The pulverized pulp is placed in kraft sample bags, and the un-pulverized portions returned to their original sample bags

· The remainder of the crushed samples (the rejects) and the pulps are returned to the client and stored at the Beattie mine facility.

*Page 62*

Samples with grades over 5.0 g/t Au are re-assayed with a gravimetric finish. If the assay result from the gravimetric finish exceeds 10 g/t Au, then the sample is re-assayed by the metallic sieve method.

The quality assurance and quality control ("QA/QC") program for drill core includes the insertion of blanks, standards and duplicates in the sample stream of core samples. About 15% of the samples were control samples in the sampling and assaying process. One (1) standard, one (1) blank sample of barren rock and one (1) pulp duplicate were added to each group of 20 samples as an analytical check for the laboratory batches.

Geologists and a designated database person were responsible for the QA/QC program and database compilation. Upon receiving the analytical results, the geologists extracted the results for blanks and standards to compare against the expected values. If QA/QC acceptability was achieved for the analytical batch, the data were entered into the project's database; if not, the laboratory was contacted to review and address the issue, including retesting the batch if required.

Accuracy is monitored by inserting CRMs at a ratio of one (1) for every 20 samples (1:20). The standards were supplied by CDN Resource Laboratories Ltd. of Langley, British Colombia. A QC failure is defined as when the assay result for a standard falls outside three standard deviations ("3SD"). Gross outliers are excluded from the standard deviation calculation.

Fourteen (14) different standards were used between 2013 and 2018. Of the 310 CRM samples, eight (8) returned results outside 3SD.

Contamination is monitored by the routine insertion of a barren sample (blank), which goes through the same sample preparation and analytical procedures as the core samples.

A total of 313 blanks were inserted in the sample batches from 2013 to 2018. The blank material consisted of crushed marble. A general guideline for success during a contamination QC program is a rate of 90% of blank assay results not exceeding the acceptance limits of three times the detection limit ("3DL"). The detection limit was 0.01 g/t Au.

One (1) sample did not pass the quality control procedure, representing a success rate of 99.6%

The precision of the pulp duplicates can be used to determine the incremental loss of precision for the pulp pulverizing stage of the process, thereby establishing whether a given pulp size taken after pulverization is adequate to ensure representative fusing and analysis.

A total of 306 pulp duplicates was assayed. The difference between the original and duplicate analyses is presented in the Figure 11.3 of the Technical Report. Results show a good precision with R2=0.94. Results also show a good accuracy monitored by the linear regression line (between the 10% tolerance limit).

*Page 63*

Overall, the sample preparation, security, analysis and QA/QC protocols performed between 2013 to 2018 followed generally accepted industry standards and that the data is valid and of sufficient quality for mineral resource estimation.

Data verification included visits to the Project as well as an independent review of the data for selected drill holes (surveyor certificates, assay certificates, QA/QC program and results, downhole surveys, lithologies, alteration and structures).

Marina Iund (P.Geo.) visited the Duparquet Project on October 20, 2021, and Carl Pelletier (P.Geo.) visited the project on November 16, 2011 and February 7, 2012. Onsite data verification included a general visual inspection of the Project and the core storage facilities, a check of drill collar coordinates, and a review of selected mineralized core intervals, the QA/QC program and the log descriptions of lithologies, alteration and mineralization.

The core boxes are stored in core racks. The authors of the Duparquet Technical Report found the core boxes to be in good order and properly labelled, and the sample tags were present. The wooden blocks at the beginning and end of each drill run were still in the boxes, matching the indicated footage on each box. The authors validated the sample numbers and confirmed the presence of mineralization in the reference half-core samples

Fifty-seven (57) new diamond drill holes were added to the previously compiled and verified master database (Poirier et al., 2014):

· 24 from Beattie

· 27 from Donchester

· 6 from Central Duparquet

Two holes drilled on the Beattie Project in 2014 and 2015 (BD-14-01 and BD-15-01) had undergone later additional sampling of the mineralized zones as seen by the inspection of the drill core, however the assay results were not reported in the drill logs or available, those holes were not included in the database. The updated master database (the "**First Mining Database**") contains 904 holes totalling 270,119 m and 173,831 sampled intervals.

Collar position coordinates and azimuths are presented in the database using the UTM system (NAD 83, Zone 17).

The drill hole collars from the 2013 to 2018 diamond drilling programs were surveyed by Patrick Descarreaux Arpenteur-Géomètre Inc. of La Sarre using a Differential GPS with an established base station.

The coordinates of six (6) surface holes were confirmed by the author using a handheld GPS, then compared to the database. All results had acceptable precision. The collar locations in the First Mining Database are considered adequate and reliable.

Downhole surveys (Acid, Gyro, Pajari, Deviflex, Flexit and Reflex) were conducted on the majority of surface holes. The downhole survey information was verified for 5% of the holes used in the 2022 MRE. The holes were selected based on their representativeness, both in terms of the drilling program they were part of (more focus on new drilling programs) and their geographical position with respect to the interpreted mineralized zones. Minor errors of the type normally encountered in a project database were identified and corrected.

*Page 64*

The assays in the database were compared to the original certificates provided by the laboratory. The verified holes represent 5% of the First Mining Database. The holes were selected based on their representativeness, both in terms of the drilling program they were part of (more focus on new drilling programs) and their geographical position with respect to the interpreted mineralized zones. Minor errors of the type normally encountered in a project database were identified and corrected.

A total of 2,371 samples from 892 channels (for a total length of 1,827 m) had already been entered and validated in the master database (Poirier et al., 2014). As no new channel samples have been provided by the issuer, no further verification of the channel sample data was deemed necessary. The results of the 2013 channel sampling program carried out by Clifton Star were not included in the MRE 2014, nor could they be included in the current MRE as the results were not available.

The data verification process demonstrates the validity of the data and the protocols for the Project. The database for the Project is considered to be valid and of sufficient quality to be used for the mineral resource estimate herein.

**Mineral processing and metallurgical testing**

Bench-scale and pilot plant metallurgical test work programs have been carried out for the Project. SGS carried out preliminary metallurgical test work in 2012 to support a PEA at that time. In 2013, SGS carried out further flotation, pressure oxidation, cyanidation, rheology and environmental test work, including a pilot plant for a PFS. Outotec was also mandated in 2013 to carry out filtration test work. A summary of the test work conducted in 2012 and 2013 is provided below, and a more detailed discussion can be found in the technical report entitled "*NI 43-101 Technical Report and Mineral Resource Estimate Update for the Duparquet Project, Quebec, Canada*" (report date: October 6, 2022; effective date: September 12, 2022), which can be found under our SEDAR profile at <u>www.sedar.com</u>.

**Comminution**

***Bench Tests:*** Test work was conducted on six mineralized material samples and two in-situ tailing samples. The gold grade of the mineralized material samples ranged from 1.3 to 3.5 g/t Au. The sulphide content ranged from 0.5% to 2.0% S. The Bond Work Index of the mineralized material samples varied from 17.2 to 20.2 kWh/t, classifying them as hard to very hard mineralized material.

***Pilot Plant Tests:*** A series of grindability tests were conducted on a pilot plant (PP Feed) sample comprising about 12 tons of HQ core material assumed to be representative of the Duparquet Project. Grindability tests were conducted on the composite sample including: Bond low-energy impact test; JKTech drop-weight test; SMC test; Bond rod mill grindability test ("RWI"); Bond ball mill grindability test ("BWI"); Bond abrasion test; and HPGR test. The Pilot Plant Feed sample was characterized as very hard with respect to both resistance to impact (Axb) and abrasion breakage (ta), as well as in terms of RWI. The sample was characterized as hard with respect to the BWI and HPGR tests. The sample was also found to be very abrasive.

A single JKSimMet simulation was conducted, using aforementioned grindability test results on the PP Feed sample. In the simulation, it was found that a 30.0' x 11.0' SAG mill, operated with a 12% ball charge would be required to grind 453 t/h crushed mineralized material with F<sub>80</sub> of 157 mm to a product with P<sub>80</sub> of 2 mm. The SAG mill and ball mill specific power requirements were 10.0 and 12.5 kWh/t, respectively for a total power consumption of 22.6 kWh/t. It was also found that 5.7 MW would be required for the ball mill circuit to achieve a final product size of 100 µm. One 20.0' x 30.0' ball mill, with internal dimensions of 5.94 x 8.99 m and assumed 0° cone angle (square mill equivalent), operating with a ball charge of about 32% was selected. The SAG and ball mill installed power should be 4,551 kW and 5,674 kW, respectively. The SAG mill motor was selected to allow a ball charge increase up to 15% as well as an increase to 78% of critical speed.

*Page 65*

**Gravity Separation**

The preliminary gravity separation test work on ground mineralized material samples indicated low gold recovery ranging from 3.7% to 14.9% and averaging 8.6%. Hence, gravity separation was not pursued.

**Flotation**

***Bench Tests:*** Bench-scale flotation tests were conducted on the six mineralized material samples and in situ tailings samples evaluated for BWI. The recovery of gold to concentrate by flotation was greater than 90% for most samples. The Central Duparquet Main sample is the exception with 84.6% gold recovery, increasing to 87.9% with finer grinding. Gold recovery by pressure oxidation and cyanidation treatment of the flotation concentrate was also investigated and was consistently high.

***Locked-Cycle Tests:*** Flotation test work was conducted to investigate the recovery of gold from six mineralized samples. This program also included detailed concentrate analysis and cyanidation tests on the flotation tailings samples. Cleaner flotation tests were conducted to investigate the recovery of the gold in a saleable sulphide concentrate. The gold recovery ranged from 75.5% (Central Duparquet Main sample) to 88.5% (A Zone sample). The cleaner concentrate gold grade ranged from 39.0 to 83.6 g/t Au and the sulphur grade ranged from 20.9% to 35.9% S.

***Pilot Plant Tests:*** Flotation tests were also conducted on a pilot plant (PP Feed) sample. The head sample was analyzed at 1.84 g/t Au, 1.16% S, 0.055% As and 7.61% CO<sub>3</sub>. The pilot plant was operated to generate bulk sulphide flotation concentrate containing 15-18% S for a subsequent pressure oxidation pilot plant to assess gold recovery and to generate 60-80 kg of a higher-grade flotation concentrate assaying over 40 g/t Au for direct sale market evaluation. With one cleaning stage the recovery of gold was 91.7% in a concentrate containing 26.8 g/t Au and 16.1% S. The results indicated that a concentrate with 47.8 g/t Au could be produced at 86.5% gold recovery. Flotation tailings were leached with cyanide to recover the gold remaining in this material. The recovery of gold from the tailings ranged from 45.1% and 40.2%.

**Cyanidation on Flotation Tailings**

***Bench Tests:*** Samples of the bench-scale flotation tailings were leached under conventional cyanidation conditions. Standard bottle roll tests were conducted at 40% solids and pH 10.5 with 0.5 g/L NaCN for 48 hours. These tests gave poor gold extractions varying from 26.2% to 56.3%, confirming the refractory nature of the mineralized material.

***Locked-Cycle Tests:*** The rougher tailings and cleaner scavenger tailings from each flotation locked cycle test were leached separately to investigate the gold extraction. Depending on the sample, between 3.9% and 11.5% additional gold was leached by cyanidation of flotation tailings. The overall gold recovery ranged from 87.0% (Central Duparquet Main sample) to 92.4% (A Zone sample).

*Page 66*

**Pressure Oxidation (POX) and Cyanidation**

***Bench Tests on Tailings:*** Test work was performed on two samples of existing tailings on the Project. The overall recovery of gold was 83.5% and 93.3%.

***Bench Tests on Mineralized Material:*** conducted on six flotation concentrate samples. The overall recovery of gold was ranging from 91.9% to 95.4%.

The first objective of this program was to attempt to reduce costs of the pressure oxidation (POX) and carbon-in-leach (CIL) process by optimizing conditions and reducing reagent requirements. Previous investigation showed high lime consumption in CIL which was attributed to the slow breakdown of basic iron sulphates produced during pressure oxidation. To address this problem, the POX products were kept at 95°C for 4 hours in what is known as a hot cure process allowing the precipitated basic iron sulphate to solubilise back into solution. By this approach, the lime consumption in the CIL circuit was reduced by up to 95%.

Acid additions in the pre-acidulation stage before pressure oxidation were reduced by approximately half (by 60 kg/t H<sub>2</sub>SO<sub>4</sub>) from the initial tests while maintaining the high degree of sulphide oxidation and high gold recoveries. In addition, the hot cure product solution was successfully used as the source of acid in the pre-acidulation step, eliminating the fresh acid requirement and the cost of neutralizing the POX product. Furthermore, the test work showed similar gold recovery values in the range of 96-99% at a lower POX temperature of 210°C compared to 225°C applied in previous test work. This would result in additional savings in pressure oxidation costs.

The second objective was to generate final products for environmental studies. This included the flotation tailings, detoxified CIL pulp and hot cure neutralization sludge with each sample to be evaluated separately as well as a combined tailing product which included all three tailing streams.

There is insufficient data to determine the relationship between sulphide oxidation and gold recovery and whether full sulphide oxidation is required to recover the majority of the gold. Earlier batch test work showed a direct relationship between sulphide oxidation and gold extraction.

***Pilot Plant Tests:*** Pressure oxidation pilot test results consisted of feed preparation, pressure oxidation, a hot curing stage and thickening of the final hot cured autoclave residue.

**Pressure oxidation feed (flotation concentrate):** The flotation concentrate was generated from a composite sample produced from drill core from across the deposit. The selected drill core and the average flotation feed mineralized material grade (Au) were selected to be as representative as possible. The head grade of the blended concentrate is 25.4 g/t gold, 32 g/t silver with sulphide grade at 16.8%. The sulphide content is sufficient to operate the pressure oxidation process under autothermal conditions without the requirement for extra heat. The high carbonate content (4.35%) necessitates an acid pre-treatment process to remove carbonate before pressure oxidation to ensure no build-up of carbon dioxide pressure in the autoclave.

**Pressure oxidation pilot plant tests:** A preliminary pilot test program investigated pressure oxidation and hot curing processing of a Duparquet flotation concentrate to render precious metals extractable by cyanidation.

The cyanidation test work program has demonstrated that high gold and silver recoveries are obtainable for cyanidation of pressure oxidation residues. The recovery of gold from the pilot plant hot cure discharge ranged from 94.7% to 96.5%, with gold recovery slightly higher for tests conducted after 90-minute POX time (96.2%, Au in residue 0.96 g/t) than those tests conducted after the 60-minute POX time (95%, 1.21 g/t Au in residue).

*Page 67*

Precious metal leaching kinetics, carbon adsorption test work and process modelling were limited to investigating cyanidation and recovery of gold from hot cured discharge samples.

Overall, the current design for the process plant is limited to one test program on one concentrate sample. The concentrate was obtained from a blend of samples from across the Project.

**Gold Leaching and Carbon Adsorption Test work**

Leach kinetic tests were carried out to determine the rate of gold leaching on a washed hot cure thickener underflow composite. The leach test work was conducted by bottle roll tests. The leach was conducted at 35% solids density as directed by Clifton Star. The NaCN concentration was maintained at 0.5 g/L and the pH at 10.5 with lime. Each test was carried out for 48 hours with kinetic subsampling at 1, 2, 4, 8, 12 and 24 hours. Leaching kinetics were fast with gold leaching largely complete within the first two hours.

SGS modelled the leaching and adsorption kinetics for gold and proposed a leaching and carbon in pulp configuration for recovering the gold based on the data from the test work sample, but no data were provided for silver leaching or adsorption kinetics. Based on the test results extractable gold and silver yields are expected to increase following lime boil from 95% to 98% for gold and from 9% to ≥89% for silver.

Gold and silver leach rates were assumed to be similar at 0.8 t/h.g, and an adsorption rate of 0.010/h. Silver leaching rates are normally slower than gold but as the silver is liberated from jarosite following lime boil it may be assumed that leaching will take place at a similar rate to gold.

**Cyanide Destruction**

**Bench Tests:** The SO2/air method was used to destroy the cyanide in the CIL tailings. Batch tests were conducted at pH 8.5 to lower the CNWAD level in the pulp to approximately 1 mg/L. Although the CNWAD level was reduced to <1 mg/L, the total cyanide (CNT) level was significantly higher for the A Zone and Donchester N samples due to the presence of ferrocyanide.

**Pilot Plant:** Bench-scale test work program conducted to examine various process options relating to the recovery of gold by carbon adsorption from washed hot cure thickener underflow product. The program also investigated neutralization of hot cure thickener overflow solution and cyanide destruction of the cyanide leach product of the pilot plant flotation tailing and hot cure thickener underflow.

The results of the tests conducted on the rougher tailings showed that the cyanide was effectively destroyed with an SO<sub>2</sub> addition of 5.7 g/g CNWAD (Weak Acid Dissociable Cyanide) with a copper addition as copper sulphate of 0.1 g Cu/g CNWAD. Reducing the copper addition by half resulted in an increase in the CNT (Total Cyanide) although the CNWAD remained similar. A polishing stage is required to achieve a CNT analysis of less than 1 mg/L bringing the total copper addition back to 0.1 g Cu/g CNWAD.

*Page 68*

**Sedimentation Test work**

Test work by SGS investigated the rheometallurgical responses (i.e., solid-liquid separation and rheology) of the flotation tailings, flotation concentrate (PP CI Conc (POX Feed)), hot cure discharge, and combined leached tailings that were produced as part of the pilot plant test program. Overall, the aforesaid rheometallurgical test data materially reflect the liquid-solid separation and flow behaviours of the process samples tested, rendering them suitable to be used as design criteria. A possible exception to this assessment involves the hot cure stream which displayed a relatively complex rheometallurgical response. To overcome the high overflow total suspended solids content a further clarification step to remove fine solids from the supernatant may be required.

**Filtration Test work**

The Outotec Filtration Test Report (2013) includes the results of the filtration test on the flotation cleaner concentrate using a Larox Pressure Filter to achieve filter cake with moisture content of less than 8%. The test work evaluated filter cloth selection, filter cake thickness, filtration rate, moisture content of the cake, and cake handling characteristics.

**Neutralization Test work**

Neutralization tests were performed on the pressure oxidation liquor to remove arsenic. The neutralization solution (pH 8) analysed <0.05 mg/L As. A Toxicity Characteristic Leachate Procedure (TCLP) on the neutralization solids confirmed that the arsenic was successfully removed in a stable form with leachate analyses below 0.03 mg/L As.

After filtering the hot cure product, the solutions for each sample were neutralized using limestone and lime. The purpose was to prepare the neutralized pulp for subsequent environmental studies.

The sequential neutralization test work with limestone and lime successfully demonstrated that the arsenic and iron levels in thickener overflow solutions can be reduced to below 0.1 mg/L. The Fe<sup>3+</sup>/As ratio in the hot cure discharge liquor is suitably high to favour the effective stabilisation of arsenic as an arsenate upon neutralization.

**Further Recommendations**

The following tests were recommended in the Duparquet Technical Report:

· Additional variability hardness tests throughout the Project. Several samples from each zone should undergo SMC, rod mill and ball mill Bond tests;

· A variability locked-cycle testing program for the existing tailings area, including a mix of tailings and mineralized material.

The report also states that while the metallurgical results using the POX process has been positive, the BIOX and Albion processes should be re-investigated. Although these processes have been tested and evaluated, it has been almost ten years since these tests were done and advancements in these technologies may change the metallurgical or financial outcomes.

*Page 69*

**Mineral resource estimates**

The mineral resource estimate update for the Project (the "**2022 MRE**") was prepared by Marina Iund, P.Geo., Carl Pelletier, P.Geo., Simon Boudreau, P.Eng. and Guy Comeau, P.Eng. using all available information. The main objective was to update the results of InnovExplo's previous mineral resource estimate for the Project, dated June 26, 2013 (Poirier et al., 2014). The updated estimate includes more recent drill holes on the Beattie, Donchester and Central Duparquet properties.

The authors of the Duparquet Technical Report have classified the current mineral resource estimate as measured, indicated and inferred resources based on data density, search ellipse criteria, drill hole spacing and interpolation parameters. The authors also believe that the requirement of "reasonable prospects for eventual economic extraction" has been met by having:

· Resources constrained by a pit shell, with a 50° angle in rock and a 30° angle in overburden;

· Constraining volumes applied to any blocks (potential underground extraction scenario) using the Deswik Stope Optimizer (DSO) for the out-pit resources; and

· Cut-off grades based on reasonable inputs amenable to potential open-pit and underground extraction scenarios.

The following table presents the 2022 Mineral Resource Estimate for the Global Duparquet Project broke down by mining method, at the actual cut off grade.

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Area (Mining Method)** | **Cut-off**<br> **(g/t)** | **Measured resource** | **Measured resource** | **Measured resource** | **Indicated resource** | **Indicated resource** | **Indicated resource** | **Inferred resource** | **Inferred resource** | **Inferred resource** |
| **Area (Mining Method)** | **Cut-off**<br> **(g/t)** | **Tonnage (t)** | **Au**<br> **(g/t)** | **Ounces** | **Tonnage (t)** | **Au**<br> **(g/t)** | **Ounces** | **Tonnage (t)** | **Au**<br> **(g/t)** | **Ounces** |
| Open pit | 0.4 | 163700 | 1.37 | 7200 | 59410600 | 1.52 | 2909600 | 28333000 | 1.07 | 970400 |
| UG mining | 1.5 | - | - | - | 5506900 | 2.26 | 399300 | 9038900 | 2.29 | 665600 |
| Tailings | 0.4 | 19900 | 2.03 | 1300 | 4105200 | 0.93 | 123200 | - | - | - |
| Total | - | 183600 | 1.43 | 8500 | 69022700 | 1.55 | 3432100 | 37371900 | 1.36 | 1636000 |

---

Note: The effective date of the estimate is September 12, 2022.

1. These mineral resources are not mineral reserves, as they do not have demonstrated economic viability. There is currently insufficient data to define these Inferred mineral resources as Indicated or Measured mineral resources and it is uncertain if further exploration will result in upgrading them to an Indicated or Measured mineral resource category. The mineral resource estimate follows current CIM Definition Standards.

2. The results are presented in situ and undiluted and have reasonable prospects of economic viability.

3. In-pit and Underground estimates encompass sixty (60) mineralized domains and one dilution envelop using the grade of the adjacent material when assayed or a value of zero when not assayed; The tailings estimate encompass four (4) zones.

4. In-pit and Underground: High-grade capping of 25 g/t Au; Tailings: High-grade capping of 13.0 g/t Au for Zone 1, 3.5 g/t Au for Zone 2, 1.7 g/t Au for Zone 3 and 2.2 g/t Au for Zone 4. High-grade capping supported by statistical analysis was done on raw assay data before compositing.

5. In-pit and Underground: The estimate used a sub-block model in GEOVIA SURPAC 2021 with a unit block size of 5m x 5m x 5m and a minimum block size of 1.25m x 1.25m x1.25m. Grade interpolation was obtained by ID2 using hard boundaries. Tailings: The estimate used a block model in GEOVIA GEMS with a block size of 5m x 5m x 1m. Grade interpolation was obtained by ID2 using hard boundaries.

6. In-pit and Underground: A density value of 2.73 g/cm3 was used for the mineralized domains and the envelope. A density value of 2.00 g/cm3 was used for the overburden. A density value of 1.00 g/cm3 was used for the excavation solids (drifts and stopes) assumed to be filled with water. Tailings: A fixed density of 1.45 g/cm3 was used in zones and waste.

7. In-pit and Underground: The mineral resource estimate is classified as Measured, Indicated and Inferred. The measured category is defined by blocks having a volume of at least 25% within an envelope built at a distance of 10 m around existing channel samples. The Indicated category is defined by blocks meeting at least one (1) of the following conditions: Blocks falling within a 15-m buffer surrounding existing stopes and/or blocks for which the average distance to composites is less than 45 m. A clipping polygon was generated to constrain Indicated resources for each of the sixty (60) mineralized domains. Only the blocks for which reasonable geological and grade continuity have been demonstrated were selected. All remaining interpolated blocks were classified as Inferred resources. Blocks interpolated in the envelope were all classified as Inferred resources. Tailings: The Measured and Indicated categories were defined based on the drill hole spacing (Measured: Zones 1 and 2 = 30m x 30m grid; Indicated: Zone 3 = 100m x 100m grid and Zone 4 = 200m x 200m grid).

8. In-pit and Underground: The mineral resource estimate is locally pit-constrained with a bedrock slope angle of 50° and an overburden slope angle of 30°. The out-pit mineral resource met the reasonable prospect for eventual economic extraction by having constraining volumes applied to any blocks (potential underground extraction scenario) using DSO. It is reported at a rounded cut-off grade of 0.4 g/t Au (in-pit and tailings) and 1.5 g/t Au (UG). The cut-off grades were calculated using the following parameters: mining cost = CA$70.00 (UG); processing cost = CA$11.9 to 17.0; G&A = CA$8.75; refining and selling costs = CA$5.00; gold price = US$1,650/oz; USD:CAD exchange rate = 1.31; and mill recovery = 93.9%. The cut-off grades should be re-evaluated in light of future prevailing market conditions (metal prices, exchange rates, mining costs etc.).

9. The number of metric tons and ounces was rounded to the nearest hundred, following the recommendations in NI 43-101. Any discrepancies in the totals are due to rounding effects.

*Page 70*

The in-pit and underground portion of the 2022 MRE represents an increase of 11% in the Indicated Resource ounces and an increase of 13% in the inferred Resource ounces compared to the previous 2014 MRE (Poirier et al., 2014). Measured Resource ounces decreased by 6.3% mainly due to the use of constraining volumes. This increase is due to the addition of the 55 new assayed holes that were drilled on the Project since 2013 and the adjustment of the economic parameters to reflect current economic conditions.

The authors of the Duparquet Technical Report concluded the following:

· The database supporting the 2022 MRE is complete, valid and up to date.

· Geological and gold-grade continuity has been demonstrated for all 72 mineralized zones.

· The key parameters of the 2022 MRE (density, capping, compositing, interpolation, search ellipsoid, etc.) are supported by data and statistical and/or geostatistical analysis.

· The 2022 MRE includes measured, indicated and inferred resources for a combination of two mining scenarios: open pit and selective underground. The 2022 MRE complies with CIM Definition Standards and CIM Guidelines.

· Two cut-off grades of 0.40 and 1.50 g/t Au were used, corresponding to potential open pit and selective underground mining scenarios.

· Cut-off grades were calculated at a gold price of US$1,650 per troy ounce and an exchange rate of 1.31 USD/CAD, using reasonable mining, processing and G&A costs.

· In a combined pit and selective underground mining scenario, the Project contains an estimated M+I Resource of 65,081,200 t at 1.58 g/t Au for 3,316,100 oz of gold and an Inferred Resource of 37,371,900 t at 1.36 g/t Au for 1,636,000 oz of gold. The Project also contains the Beattie mine tailings with an estimated M+I Resource of 4,125,100 t at 0.94 g/t Au for 124,500 oz of gold.

· Based on metallurgical tests, the Duparquet Project appears amenable to existing gold recovery processes. A combination of flotation, pressure oxidation and cyanide leach processes has shown a gold recovery ranging from 94.7% to 96.5%.

The authors conclude that it is reasonable to believe that a hybrid operation consisting of an early open pit followed by later underground mining activities is amenable to the expectation of "reasonable prospects of eventual economic extraction" as stated in the CIM Guidelines. The authors believe that there is potential to add new resources in the open pit through exploration is focused in the east direction because the favorable geology hosting the Project mineralization is constrained to the west, and the pit itself is constrained to the south by the Project limit and the town of Duparquet. There is potential to add material at depth below the existing mineralized model that could be accessed from the underground infrastructures. The reader is cautioned that this exploration target is not a mineral resource estimate and is conceptual in nature. There has been insufficient exploration to define it as a mineral resource and it is uncertain if further exploration will delineate the exploration target as a mineral resource.

*Page 71*

The authors of the Duparquet Technical Report make the following recommendations:

· <u>Geology</u>: The authors recommend further exploration drilling on the Project to potentially increase resources and the confidence level of the geological model. More specifically, the NE-SW striking secondary zones should be drilled to test their lateral and depth extensions. Additional detailed surface mapping and channel sampling would enhance the structural model. A compilation of historical diamond drill holes on the Central Duparquet Property is recommended, particularly those drilled during the 1980s to cover the current mineralized zones in that area. Further definition drilling is recommended along strike and at depth to upgrade the Inferred resources to the Indicated category and address the underground potential for all zones.

· <u>Mining</u>: Additional geotechnical and hydrogeological studies should be undertaken to better define the pit wall slopes presented in this report. This would involve confirming the structural data over the proposed footprint of the open pit. Ideally, this would involve a geotechnical drilling program with a minimum of one (1) hole oriented perpendicular to each of the four pit walls (north, south, east and west).

· <u>Metallurgy</u>: The QP recommends the following tests:

· Additional variability hardness tests throughout the Project. Several samples from each zone should undergo SMC, rod mill and ball mill Bond tests.

· A variability locked-cycle testing program for the existing tailings area involving a mix of tailings and ore.

· The metallurgical results using the POX process have been positive. However, the QP believes that the BIOX and Albion processes should be re-investigated.

The authors have prepared a cost estimate for the recommended two-phase work program to serve as a guideline. The budget for the proposed program is presented in the following table. Expenditures for Phase 1 are estimated at $4.65 million (incl. 15% for contingencies). Expenditures for Phase 2 are estimated at $1.25 million (incl. 15% for contingencies). Phase 2 is contingent upon the success of Phase 1. The grand total is $5.9 million (incl. 15% for contingencies).

**Estimated Costs for the Recommended Work Program**

---

| | | |
|:---|:---|:---|
| **Phase 1** | **Work program** | **Budget cost** |
| a | Drilling and Compilation of historical drill holes | $2.5 M |
| b | Resource Update | $150 k |
| c | Geotechnical Drilling | $1.0 M |
| d | Metallurgical testwork | $1.0 M |
|  | Phase 1 subtotal | $4.65 M |
| **Phase 2** | **Work program** | **Budget cost** |
| a | Environmental Assessment | $800 K |
| b | Hydrogeological Study | $250 K |
|  | Phase 2 subtotal | $1.05 M |
|  | TOTAL (Phase 1 and Phase 2) | $5.7 M |

---

*Page 72*

**Recent developments**

We plan to advance the Duparquet Project commencing in 2023 with environmental data collection to update the environmental baseline data previously collected by Duparquet Gold Mines (at the time, Clifton Star) in 2012 and 2013 to support the regulatory approval process for the Project. Future planned work will also include engineering trade-off studies, diamond drilling and an updated economic study (PEA) for the Project.

In 2022, we commenced a robust regional exploration data compilation, integration and targeting exercise to develop a path supporting potential resource expansion, resource classification upgrading, and exploration discovery. We have also initiated discussions with the relevant Quebec ministries to address environmental and legacy infrastructure issues as part of the redevelopment of the property. We are committed to working in partnership with the municipality of Duparquet, its citizens and Indigenous communities.

*Page 73*

**Cameron**

**Technical report**

The description in this section of our Cameron gold project (the "**Cameron Project**") is based on the project's technical report: *Technical Report on the Cameron Gold Deposit, Ontario, Canada* (effective date January 17, 2017) (the "**Cameron Gold Technical Report**"). The report was prepared for us by Optiro Pty Ltd. in accordance with NI 43-101 under the supervision of Mark Drabble, B. App. Sci. (Geology), MAIG, MAusIMM; and Kahan Cervoj, B. App. Sci (Geology), MAIG, MAusIMM; each Qualified Persons within the meaning of NI 43-101. The following description has been prepared under the supervision of Hazel Mullin, P.Geo., who is a Qualified Person within the meaning of NI 43-101, but is not independent of us.

The conclusions, projections and estimates included in this description are subject to the qualifications, assumptions and exclusions set out in the Cameron Gold Technical Report, except as such qualifications, assumptions and exclusions may be modified in this AIF. We recommend you read the Cameron Gold Technical Report in its entirety to fully understand the project. You can download a copy of the Cameron Gold Technical Report from our SEDAR profile (<u>www.sedar.com</u>), or from our website (<u>www.firstmininggold.com</u>).

**Project description, location and access**

The Cameron Project is wholly-owned by us through our wholly-owned subsidiary, Cameron Gold Operations Ltd. The Cameron Project comprises 1,789 mining claims, 24 patented claims, seven licences of occupation and four mining leases. All of the claims are located within unsurveyed crown lands, and are situated in the Rowan Lake, Heronry Lake, Tadpole Lake, Brooks Lake, Lawrence Lake, Bluffpoint Lake, and Dogpaw Lake areas, and the Phillips and Godson townships.

The total area of the project is approximately 495.74 km<sup>2</sup> (49,574 ha).

The Cameron Project currently consists of two project areas; namely Cameron (which includes the Cameron deposit) (the "**Cameron Deposit**") and West Cedartree (which includes the Dubenski and Dogpaw deposits). The Cameron Gold Technical Report covers only the Cameron Deposit and Mineral Resource Estimate within the broader Cameron Project. The Cameron Project area comprises 1,699 mining claims, four patented claims, six licences of occupation and three mining leases. The West Cedartree property comprises 91 mining claims, 20 patented claims, one licence of occupation and two mining leases.

The Cameron Project is located in the southern part of western Ontario, Canada approximately 80 km southeast of Kenora and 80 km northwest of Fort Frances. The nearest towns are Sioux Narrows and Nestor Falls, 30 km and 25 km away respectively. The Cameron Project is on unsurveyed crown lands accessed by sealed and all-weather gravel roads. From Kenora via Highway 17, Hwy 71 and the Cameron Lake road the distance is around 123 km. From Fort Frances via Hwy 11, Hwy 71 and the Cameron Lake road the distance is 168 km.

Underlying royalties which affect the Cameron Deposit are:

· 1.5% NSR payable to Rubicon Minerals Corp. for 47 unpatented claims. We have the option to repurchase 0.75% of the NSR for $750,000;

· 1% NSR payable to Orion Resource Partners for 20 unpatented claims, 4 patented claims, 6 MLOs and 2 mining leases;

· 2% NSR payable to Mr. Sherridon Johnson and Mr. Edward Antony Barkauskas for one unpatented claim. We have the right to repurchase 1% of the NSR for $500,000;

· $0.30 per ton on all ore mined payable to the estate of W. Moorhouse and D. Petrunka for one mining lease;

· 3% NSR payable to Lasir Gold Inc. We have the right to reduce the NSR to 1.5% by payment of $1,500,000; and

· 1% NSR payable to Chalice on 133 unpatented mining claims, all of which are not encumbered by pre-existing royalties. We have the right to repurchase 0.5% of the NSR for $1,000,000.

*Page 74*

In order to maintain the title to a mining claim, the recorded holder of the claim is required to undertake approved work expenditure of $400 per single cell mining claim or $200 per boundary cell mining claim within two years of the granting of the claim. Work programmes and expenditure commitments can be grouped across a contiguous series of mining claims. The duration of a mining lease is 21 years from the date of grant. The mining leases within the Cameron Project were initially granted in 1988 and were subsequently renewed for a further 21 years in July 2009, except one mining lease which was renewed in May 2006.

**History**

Exploration in the area commenced in the 1940s and numerous companies have carried out prospecting, line cutting, geological mapping, trenching, soil and outcrop sampling and ground magnetic and electromagnetic geophysical surveys.

On the Cameron Project there have been numerous exploration and drilling programmes. On the Cameron Deposit itself, the first drilling was undertaken in July 1960. Prior to 2010, there were 836 holes comprising in excess of 90 km of diamond drill core drilled by six companies.

In 1987 at the Cameron Gold Deposit, underground development for an extensive sampling programme was undertaken. Some 65,000 m<sup>3</sup> of material was excavated with some bulk sampling, diamond drilling and rock chip sampling completed. The excavated material was placed on surface at site in three separate stockpiles: one for unmineralized access development material, one for "low-grade" mineralized material; and one for "mineralized" material. The unmineralized stockpile has been used from time to time for access road maintenance. The mineralized material stockpiles have been surveyed and sampled for the purpose of reconciliation against depletion calculations but no estimate has been prepared that would permit inclusion of the material in a disclosure of resources.

Between 2010 and 2012, 242 surface diamond holes were drilled totalling 36,000 m, the majority on the Cameron Deposit.

Since 2010, the following exploration work has been carried out throughout the Cameron Project consisting of:

· Airborne magnetic gradiometers survey of the project area in 2010.

· 250 km of line cutting over the property

· 142-line km of Pole-Dipole Induced Polarisation surveys (July 2010 to February 2011)

· Orientation geochemical sampling programme of surface pits around the Cameron deposit in late 2011. A total of 19 samples of around 12 kg were collected from the base of till over an area of about 900 m x 600 m.

· Excavation of 94 pits in 2013 on gold-in-till anomalies.

· Outcrop mapping and prospecting

· Heli-borne magnetics and Versatile Time-domain Electromagnetic (VTEM) over the western portion of the project in 2014. A total of 1457 line km of VTEM was flown at 200 m spacings.

· Several historical Mineral Resource estimates have been done for the Cameron Deposit.

In May 2014, 15 holes for 2,599.5 m were diamond drilled at the Jupiter, Ajax, Juno and Hermione prospects that are proximal to the Cameron Deposit.

*Page 75*

**Geological setting, mineralization and deposit type**

The mineralization at the Cameron Project is mainly hosted in mafic volcanic rocks within a northwest trending shear zone ("**Cameron Lake Shear Zone**" or "**CLSZ**") which dips steeply to the northeast. In the south-eastern part of the deposit where the greatest amount of gold has been delineated, the shear zone forms the contact between the mafic volcanic rocks and diabase/dolerite rocks of the footwall.

Gold mineralization occurs within quartz breccia veins, associated with intense silica-sericite-carbonate-pyrite alteration in a series of zones that dip moderately to steeply to the northeast within and adjacent to the shear zone. Gold is associated with disseminated pyrite with high sulphide concentration generally corresponding with higher gold grade. Visible gold is rare. The mineralization is open at depth and along strike to the northwest with potential to expand the Mineral Resource in these directions.

The Cameron Deposit is a greenstone-hosted gold deposit. While the deposit can generally be considered to be part of the orogenic family of gold deposits, it bears many characteristics atypical of the largest gold deposits of this style. These features include:

· mineralization dominated by disseminated sulphide replacement and quartz-sulphide stockwork and quartz breccia veins;

· spatial and temporal association of mineralization with porphyry intrusive bodies that have similar alteration assemblages (taking into account primary lithological variations);

· relatively minor amounts of auriferous quartz-carbonate vein material comprising the mineralization, which is likely temporally-late compared to the disseminated sulphide replacement and quartz breccia veins;

· high-grade mineralization is largely deformed and the disseminated sulphide replacement zones that constitute the bulk of the mineralization are commonly foliated; and

· the alteration assemblage of the mineralization (sericite-albite-carbonate-pyrite) is atypical.

**Exploration**

Exploration at the Cameron Project commenced in 1960 and has been conducted intermittently until the present day.

**Drilling**

A number of diamond drill hole programmes have been carried out across the Cameron Project area by a number of explorers: Noranda Exploration Company Limited ("**Noranda**") from 1960 to 1961; Zahevy Mines Limited and Noranda from 1972 to 1974; Nuinsco in 1981; Nuinsco and Lockwood Petroleum Inc. from 1983 to 1984; Nuinsco and Echo Bay Mines Limited from 1985 to 1989; Nuinsco and Deak International Resources Holding Limited in 1989; Cambior Inc. in 1996; Nuinsco from 2003 to 2005; and Coventry Resources Inc. ("**Coventry**") from 2010 to 2012. In addition, an RC drilling programme was completed by Nuinsco from 1985 to 1986 to sample the overlying glacial till and the bottom of hole in bedrock to test for geochemical anomalism associated with gold mineralisation.

*Page 76*

From 1960 through to 2012, 981 diamond drill holes were drilled for a total of 120,813 m. An additional 83 RC holes were drilled during the mid-1980s for a total of 862 m.

Underground exploration of the Cameron Deposit commenced in October 1986 and was undertaken in two phases until July 1988 to verify the surface drilling results. Overall, 457 underground diamond drill holes were completed for a total of more than 21,707 m. An additional 55 diamond drill holes were drilled from underground for a total of 4,887 m between 1989 and 1990.

**Sampling, analysis and data verification**

Documentation regarding historic field procedures applied by previous explorers at the Cameron Gold Deposit, including details regarding sample collection, preparation, transportation and security, and analytical techniques, is poor or non-existent. Prior to 1988, core was manually split, with half-core sent for analysis. Post 1988, drill core was cut using a masonry saw. The inclusion of control samples is assumed and is sometimes referenced in documentation but details regarding this are not documented.

For the 2010 to 2012 drill programmes, drill core was cut on site with wet masonry core saws by geotechnical personnel who are supervised by Coventry site-based geologists. The selection of intervals for cutting and the length of these intervals was based on lithological, alteration or mineralization boundaries as defined by the supervising geologist with 1 m intervals used in zones of similar lithology. Within mineralization the sampling intervals vary from 0.06 m to 2 m.

Samples were received at the laboratory and checked against accompanying sample dispatch sheets to ensure all samples are delivered. Any discrepancies were noted and Coventry notified that resolution was required before the samples advanced through the preparation process.

Sample preparation comprised standard laboratory techniques of (i) drying for a minimum of 8 hours, (ii) mill crushing to greater than 70% passing 2 mm, (iii) riffle splitting (using a Jones Splitter) to approximately 250 gm and (iv) disk pulverising to 85% passing 75 microns. The sample was then split to 30 g for analysis with the remainder retained as a pulp residue. The coarse remainder was put aside as a bulk residue (reject).

Overweight samples (>2.5 kg) were crushed and split into two samples, treating each as above and recombining after pulverising.

All samples were analysed for gold by accredited and independent Activation Laboratories Ltd. (**"ActLabs**") at their Thunder Bay facility using method '1A3-Tbay Au - Fire Assay Gravimetric'. The 30 g assay sample was combined with fire assay fluxes (borax, soda ash, silica and a lead oxide litharge) and silver added as a collector. The mixture was placed in a fire clay crucible, preheated at 850°C, intermediate at 950°C and finished at 1060°C over approximately 60 minutes. The crucibles were then removed from the assay furnace and the molten slag (lighter material) is carefully poured from the crucible into a mould, leaving a lead button at the base of the mould. The lead button is then placed in a preheated cupel which absorbs the lead when cupelled at 950°C to recover the silver and gold doré bead.

The gold was separated from the silver in the doré bead by parting with nitric acid. The resulting gold flake is annealed using a torch. The gold flake remaining is weighed gravimetrically on a microbalance. The detection limits are 0.03 ppm Au (lower) and 10,000 ppm Au (upper).

*Page 77*

All drill core from the 2010 and 2011 drilling programs is stored in covered steel core racks at the Cameron Project. Every core box is labelled with Dymo tags, recording hole ID, box number and 'from' and 'to' depths.

All samples were individually bagged and labelled with unique sample numbers. Corresponding laboratory specific assay tags were included in each sample bag, which were then sealed with plastic zip-ties and batched in woven nylon bags. Samples were transported via commercial road transport on a weekly basis during drilling programmes. The samples were taken to ActLabs in Thunder Bay or to the ActLabs sample preparation facility in Dryden before being transferred to Thunder Bay for analysis.

Drill core was logged in the exploration camp at Cameron Lake. The core was logged for geology, alteration, mineralization, structure and other geological features such as veining. The core was photographed in wet and dry condition and stored in racks prior to sampling by core cutting. The drill core was marked up with the sample intervals and the core was cut using a diamond blade saw. Sample tickets were stapled into the wooden core trays and the other half put into the sample bag. The sample number was also written on the outside of the calico sample bag for identification and sorting purposes. The core is stored in the exploration facility at the Cameron Property. This has dedicated covered racks for storing drill core, wooden crates for sample residues, and sea containers for sample pulps.

All samples were individually bagged and labelled with unique sample numbers. Corresponding laboratory specific assay tags were included in each sample bag, which were then sealed with plastic zip-ties and batched in woven nylon bags. Samples were transported via Gardewine North commercial road transport of Kenora. The samples were taken to ActLabs in Thunder Bay. Confirmation was sent to Chalice that the security tags were intact, and that the numbers match the sample despatch request.

As part of its QA/QC review, Optiro Pty Ltd. ("**Optiro**") was provided a Microsoft access database containing two QA/QC tables. One table comprised standards and blanks and one table comprised duplicates assay results. Optiro exported these tables into CSV format and imported the QA/QC results into data analysis spread sheets to review the Cameron QA/QC results.

The underground drilling data collected between 1987 and 1989 was considered critical to the quantity and quality of the 2014 Mineral Resource Estimate, and as no QA/QC information was available, Coventry undertook a re-sampling program in order to establish confidence in the assay results. The Coventry re-sampling programme targeted mineralization in and around the underground development. Remaining core was quartered either using a core saw or manually (depending on core condition) over the same sample intervals as currently recorded in the database. The re-samples were prepared and assayed in exactly the same manner that samples from Coventry's diamond drilling programme were processed with sample preparation and analysis carried out at ActLabs in Thunder Bay. This re-sample programme provided 816 directly comparable assay results, from a total of 1,904.6 m of drill core. The comparison is between half core (original sample) and quarter core (resample).

Optiro only managed to identify 101 samples recorded in the QA/QC database to be duplicate samples and that were submitted by Coventry in 2010 and 2011. Optiro's analysis of the 101 identified quarter core duplicate samples indicates a poor repeatability of grades between paired samples with a correlation coefficient of 0.24. The results suggest that the duplicate samples are under reporting compared to the original grades at gold grades of less than 1 g/t Au, and over reporting compared to the original grades at gold grades of greater than 2 g/t Au.

Results from the scatter plot, precision plot and relative difference plots highlight a moderate to poor precision and poor repeatability of duplicates from this resample programme. In Optiro's opinion the repeatability and precision of these duplicates does not demonstrate a high level of confidence. However, the small number of samples does not in Optiro's opinion provide definitive evidence of issues with the duplicate repeatability. Optiro notes that consideration for differing sample volumes i.e. manually split half core (versus) sawn quarter core needs to be taken into account when reviewing duplicate analysis results. As such, whilst Optiro recommends that First Mining needs to review the performance of the Coventry resample programme further, Optiro considers these results to be adequate for resource estimation.

*Page 78*

Optiro has identified 249 blanks submitted by Coventry as part of its resample programmes in 2010 and 2011. Of the 249 blanks submitted four returned grades above 0.03 g /t Au. This represents a failure rate of less than 2%. Optiro considers these results to be adequate for resource estimation.

Optiro identified 236 standards submitted by Coventry as part of its resample programmes in 2010 and 2011. Of the 236 standards submitted, 10 different Certified Reference Material ("**CRM**") standards with gold grades ranging from 0.38 g/t to 7.97 g/t Au were used during the Coventry resample programme. A total of 55 gold standards fall outside three standard deviations which represents a failure rate of approximately 23%. When graphed, it is evident that a large number of the standard failures are potential sample swaps (i.e. incorrect standard labelling or blanks labelled as a standard). However, due to the close gold grades of a number of standards, it is not possible to determine with 100% accuracy what the actual standard ID might be.

Optiro does not know whether Coventry resubmitted all failed batches for re-analysis.

Optiro considers that the sample swaps should be rectified in the database so that the QA/QC performance is representative of the performance of the standards. In taking these into account, Optiro considers that the CRM assay performance is adequate for estimation.

As part of their 2010 to 2012 drilling programmes, Coventry submitted standards, duplicates and blanks as part of their quality control program.

The blank material was obtained from a granite quarry and whilst not certified, was considered by Coventry to be sufficiently homogenous and unmineralized to act as barren material. Of the 921 blanks submitted eight (8) returned grades above 0.03 g /t Au. This represents a failure rate of less than 2%. These failures were reviewed at the time by Coventry and were considered to be potential laboratory contamination issues. Optiro considers these results adequate for resource estimation.

Of the 921 standards submitted, six were recorded as have grades of -99. Optiro removed these standards from the database prior to any further analysis. A total of 12 different CRM standards with gold grades ranging from 0.69 g/t Au to 7.97 g/t Au were used during the Coventry drill programs.

The provided database contained 901 quarter core duplicate samples collected by Coventry during the 2010 to 2012 drilling programmes. The duplicates demonstrate a moderate correlation coefficient (0.83) indicating moderate repeatability of grades between paired samples.

The relative precision of a field duplicate dataset is determined by calculating the absolute difference between the two sample's grades divided by the mean of the sample pairs. Good or high precision suggests that the paired samples are consistent with each other, both samples have been well homogenised and that sample size (weight) is adequate to be representative of the material collected from the drill hole. Poor or low precision suggests that the samples have been poorly prepared, have a high inherent nugget, poor assaying, or are not large enough to be representative. Of the duplicates submitted to ActLabs, 74% of assays were within 5% precision, 76% within 10% precision, and 78% within 15% precision.

Results from the scatter plot, precision plot, and relative difference plots highlight a moderate to poor precision and moderate to poor repeatability of duplicates from these phases of drilling. Part of this could be due to the use of chisel vs. saw splitting, or the use of quarter vs. half core samples, which Optiro does not consider to be a true representative duplicate sample when dealing with gold mineralisation. As previously stated, taking into account consideration for differing sample volumes (i.e. half core versus quarter core), Optiro considers these results to be adequate for resource estimation.

*Page 79*

In 2014, Chalice undertook a resampling program to provide additional confidence in the underlying drill hole sample assays results used for Mineral Resource estimation. The samples selected were considered to be spatially representative of the majority of the Cameron Gold Deposit with an emphasis on near surface locations. A total of 492 pulps and 325 coarse rejects were selected from the existing drill holes within the following series:

---

| | |
|:---|:---|
| ·  | Historical holes - resample of pulp samples only |
| ·  | Coventry 2010 holes - pulps and rejects |
| ·  | Coventry 2011 holes - pulps and rejects. |
| The following is an overview of the pulp sampling program taken from the Chalice 2014 Report.  | The following is an overview of the pulp sampling program taken from the Chalice 2014 Report.  |
| ·  | Selected pulp samples were sent to AGAT Laboratories of Mississauga, Ontario - the Umpire Laboratory |
| ·  | The samples were not re-numbered given the sample sequence had never been seen by this laboratory |
| ·  | The laboratory was requested to place an "A" prefix to the start of the sample number to distinguish these results from the original results. |
| ·  | Standards and Blanks were included with these samples positioned in the same location sequence as in the original submission; a new Standard was placed in the position of the original Standard (the original Standard sample being exhausted by the analytical process) whilst the Blanks were retained from the original submissions. |

---

The selected samples were renumbered (for disguise) and re-submitted to ActLabs to preparation and analysis by the method adopted by Coventry and described in previous reports.

Standards and Blanks were included with these samples positioned in the same location sequence as in the original submission; a new Standard was placed in the position of the original Standard (the original Standard sample being exhausted by the analytical process) whilst the Blanks were retained from the original submissions.

Results from the pulp duplicate analysis indicates a good repeatability of pulps, while results from the coarse reject analysis illustrate that the average grade of the rejects is 4% lower than the original sample. Optiro was not provided with this data and as such has not been able to replicate these results.

Optiro considers the assay performance of the pulp and reject samples to provide good support for the representivity of the analytical results and for mineral resource estimation.

In 2015, Chalice undertook two resampling programs of unsampled intervals within the Cameron Shear Zone. Optiro has based the following analysis of standards, duplicates and blanks submitted as part of the 2015 resampling programs based on the coding in the provided database.

Of 1,608 blanks submitted during the 2015 resample program, 10 returned grades above 0.03 g/t Au. This represents a failure rate of less than 1%. Optiro considers these results to be a good measure of the sample preparation process and acceptable for resource estimation.

*Page 80*

Of 1,644 standards submitted, 10 were recorded as 'sample consumed'. Optiro removed these standards from the database prior to any further analysis. A total of 9 different CRM standards with gold grades ranging from 0.34 g/t Au to 7.97 g/t Au were used during the Chalice resample programmes.

A total of 144 gold standards fell outside of three standard deviations, which represents a failure rate of approximately 9%. The majority (but not all) of the failures appear to be sample swaps (i.e. incorrect standard labelling or blanks labelled as a standard). In this program, Chalice did not resubmit failed batches for re-analysis but Optiro recommends implementation of this protocol for future programs. In addition, Optiro notes the presence of what appears to be cyclic trends in the standard results. Further investigation into these trends is recommended.

Of 1,629 quarter core duplicates submitted, one was recorded as having a grade of -99. Optiro removed this sample from the database prior to any further analysis. The duplicates demonstrate a moderate correlation coefficient (0.79) indicating a moderate repeatability of grades between paired samples. Optiro notes there are a number of original samples (43) with barren grade (<0.03 g/t Au) where the duplicate has returned gold grades ranging from 0.1 g/t Au to 2.42 g/t Au. Furthermore, there a number of duplicate samples (47) of barren grade with an original grade ranging from 0.1 g/t Au to 3.1 g/t Au, suggesting that there are potentially sample swaps.

The relative precision of a field duplicate dataset is determined by calculating the absolute difference between the two sample's grades divided by the mean of the sample pairs. Good or high precision suggests that the paired samples are consistent with each other, both samples have been well homogenised and that sample size (weight) is adequate to be representative of the material collected from the drill hole. Poor or low precision suggests that the samples have been poorly prepared, have a high inherent nugget, poor assaying, or are not large enough to be representative. Of the duplicates submitted to ActLabs 86% of assays were within 5% precision, 87% within 10% precision, and 88% within 15% precision.

Results from the scatter plot, precision plot, and relative difference plots highlight a moderate precision and a moderate repeatability of duplicates from these resampling programs.

Based on the good correlation coefficient and moderate repeatability performance of the duplicate samples Optiro considers the results from the Chalice 2015 resampling program to be acceptable for use in a Mineral Resource estimate.

Aside from the pulp resample programme undertaken by Chalice in 2014, Optiro is unaware of any additional umpire duplicate sampling that has taken place at Cameron Project.

Data verification has been carried out by the author to verify the following elements:

· Deposit location and geology confirmed by site visit to view outcrop exposures, drill core samples and photographs of drillcore;

· Drill collar locations and grid co-ordinates verified by GPS check of randomly selected drill hole co-ordinates;

· Downhole survey deviation compared on an random selection of drill holes;

· Quantum of stated mineralisation supported by independent sampling of mineralization; and

· Assay integrity verified by sample QA/QC analysis, no significant bias identified.

Primary source data (surveys, downhole survey information, assay certificates) checked against database for errors and no material issues identified.

The results of the data validation process have verified the accuracy and integrity of the information provided by Chalice. It is Optiro's opinion that the Cameron database is acceptable for the purpose of mineral resource estimation.

*Page 81*

**Mineral processing and metallurgical testing**

A number of preliminary metallurgical studies have been carried out on samples from the Cameron Property from 1985 to the present. Multi-element geochemical assays of the samples from the drill holes drilled between 2010 and 2012 have indicated that concentrations of deleterious elements (such as sulphur) are not significant.

Metallurgical test work carried out on samples representative of the style of mineralization at the Cameron Gold deposit showed that recoveries of 92% to 93% were returned from direct cyanidation of samples ground to 75 μm. The results also showed that the recoveries were grind sensitive with maximum recoveries at a P80 grind size in the range 53 to 75 μm. An alternative processing regime of sulphide flotation (mainly pyrite), regrind of flotation concentrate followed by intensive cyanidation of flotation concentrate and flotation tailings provided gold recoveries marginally higher than direct cyanidation. At a grind size of 75 μm the optimum leach time was approximately 24 hours.

Test work completed in 2013 by the Vancouver branch of SGS used a composite sample taken from 17 drill hole intersections from 14 separate drill holes at the Cameron Project. Comminution tests indicated that:

· rod and ball mill bond work indices are low;

· moderate abrasion index within typical ranges for dolerite-basalt material; and

· JK breakage parameters indicating the material is highly competent.

Gravity recoverable gold is typically around 25% with no improvement in overall recovery after gravity recovery with cyanidation of the gravity tails. Test work carried out in 2014 showed that cyanide in leach processing at a P80 of 75 μm would recover 92.5% of gold with a cyanide usage of 0.2 kg/t and lime usage of 1.2 kg/t. This result was an improvement on direct cyanidation in terms of reagent usage with a lower recovery (92.5% vs. <95% cyanidation). No processing issues or deleterious elements have been identified that could have a significant effect on potential mineral extraction in metallurgical test work completed to date.

**Mineral resource estimates**

The Mineral Resource estimates for the Cameron Deposit have been generated from drill hole sample assay results. The interpretations are based on an integrated 3D geological model that defines the relationships of the geological elements at the Cameron Property. The interpreted mineralization wireframes (using a nominal 0.4 g/t Au, and 0.25 g/t Au cut-off grade for low grade domains) have been used to constrain gold grade estimates. There are eight mineralization domains that are split into two global areas - 'northern' and 'southern', with the separation defined by a set of northwest (grid) striking quartz feldspar porphyry ("**QFP**") dykes. The southern domain is the most strongly mineralized. The stronger mineralization is attributed to being dominantly mafic hosted with an inflection point in the Cameron Lake Shear Zone and resultant dilation zone defined by north-south striking hangingwall and footwall QFP dykes.

Block grade estimation parameters have been defined on the basis of geology, drill hole spacing and through geostatistical analysis of the data. Top-cut 1.0 metre composite samples informed the block grade estimate by ordinary kriging ("**OK**") into a panel size of 5 mE by 10 mN and 5 mRL, which is considered appropriate for the distribution of sample data and the deposit type. Sub-celling of the parent cells to 0.625 mE by 2.5 mN and 1.25 mRL was enabled to ensure good volumetric correlation with the mineralization wireframes.

*Page 82*

The Mineral Resource estimates have been classified by the geological understanding, data spacing, block proximity to sample locations, underground development and confidence in the block model grade estimate. The Mineral Resource estimate has been reported in accordance with the Standards on Mineral Resources and Reserves of the Canadian Institute of Mining, Metallurgy and Petroleum 2014 Definition Standards.

The Mineral Resources have been reported using the constraints and cut-off grades specified in the tabulations below. The Mineral Resource is tabulated in Table A for Measured and Indicated Mineral Resources and in Table B for Inferred Mineral Resources.

**Table A - Measured & Indicated Mineral Resource statement as at January 17, 2017**

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| <br> **Mineral Resource Classification** | <br> **Open-Pit Constraint** | <br> **Gold cut-off (Au g/t)** | <br> **Tonnes** | <br> **Gold g/t** | <br> **Gold (Ounces)** |
| <br> Measured Mineral Resource | <br> Within US$1,350 open-pit shell | <br> 0.55 | <br> 2670000 | <br> 2.66 | <br> 228000 |
| <br> Indicated Mineral Resource | <br> Within US$1,350 open-pit shell | <br> 0.55 | <br> 820000 | <br> 1.74 | <br> 46000 |
| <br> Measured + Indicated |  |  | <br> 3490000 | <br> 2.45 | <br> 274000 |
| <br> **Mineral Resource Classification** | <br> **Underground Constraint** | <br> **Gold cut-off (Au g/t)** | <br> **Tonnes** | <br> **Gold g/t** | <br> **Gold (Ounces)** |
| <br> Measured Mineral Resource | <br> Below US$1,350 open-pit shell | <br> 2.00 | <br> 690000 | <br> 3.09 | <br> 69000 |
| <br> Indicated Mineral Resource | <br> Below US$1,350 open-pit shell | <br> 2.00 | <br> 1350000 | <br> 2.80 | <br> 121000 |
| <br> Measured + Indicated |  |  | <br> 2040000 | <br> 2.90 | <br> 190000 |
| <br> **TOTAL MEASURED + INDICATED** |  |  | <br> **5530000** | <br> **2.61** | <br> **464000** |

---

**Table B - Inferred Mineral Resource statement as at January 17, 2017**

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| <br> **Mineral Resource Classification** | <br> **Open-Pit Constraint** | <br> **Gold cut-off (Au g/t)** | <br> **Tonnes** | <br> **Gold g/t** | <br> **Gold (Ounces)** |
| <br> Inferred Mineral Resource | <br> Within US$1,350 open-pit shell | <br> 0.55 | <br> 35000 | <br> 2.45 | <br> 3000 |
| <br> **Mineral Resource Classification** | <br> **Underground Constraint** | <br> **Gold cut-off (Au g/t)** | <br> **Tonnes** | <br> **Gold g/t** | <br> **Gold (Ounces)** |
| <br> Inferred Mineral Resource | <br> Below US$1,350 open-pit shell | <br> 2.00 | <br> 6500000 | <br> 2.54 | <br> 530000 |
| <br> **TOTAL INFERRED** |  |  | <br> **6535000** | <br> **2.54** | <br> **533000** |

---

The Measured and Indicated Mineral Resources are defined in the areas of the deposit that have the highest drilling density along with underground development that has exposed and sampled the deposit on three levels of drift development.

*Page 83*

**Recent developments**

On December 9, 2020, First Mining completed a transaction with Metalore pursuant to which it acquired from Metalore the East Cedartee claims which are located between the Cameron claim block (which includes the "Cameron Gold Deposit" that hosts the current Mineral Resource on the Cameron property) and the West Cedartree claim block (which includes the Dubenski and Dogpaw deposits on the Cameron property). The acquisition of the East Cedartree claims consolidates First Mining's land holdings at Cameron into a single contiguous block and adds a further 3,200 hectares to the 49,600 hectares that First Mining already holds in the district, making a total of 52,800 hectares for the entire property. The property area for the Cameron Project is now comprised of 2,001 mining claims, 24 patents, 4 mining leases and 7 licenses of occupation.

In 2021, First Mining completed surface water and groundwater quality sampling on and around the Cameron Gold Project in order to maintain an ongoing process of data collection to support any baseline studies for future permitting. Work on the property also included historical drill core organization and site infrastructure maintenance. Exploration field work was also carried out in 2021, which consisted of a 10-day rock sampling program with approximately 50 samples collected for analysis.

In 2022, First Mining completed a desktop study comprising of data compilation, geological modelling and exploration target generation across the northern majority of the property covering an area of approximately 700 square kilometres generating 54 targets for future advancement.

An initial 4,000 m drill program at the project is planned for 2023 in order to advance the exploration potential of the local geology and identify new drill targets at the West Cedartree and East Cedartree claims. An exploration permit application in support of this planned work was submitted by First Mining in 2021 and is under review by the Ontario Ministry.

First Mining continues to provide opportunities for the sharing of updates and information about the Cameron Gold Project with local Indigenous communities. Animakee Wa Zhing #37 First Nation and First Mining signed an exploration agreement in June 2021.

*Page 84*

**Non-material properties**

We also hold a number of non-material mineral properties in our portfolio. Some of these properties are resource-stage assets which have NI 43-101 technical reports that support resources of less than one million ounces of attributable gold. Others are grassroots exploration projects that host mineralization but have not had sufficient drilling on them to classify resources under the CIM definition standards. A brief summary of some of these properties is set out in this section.

**Canada**

<u>Pickle Crow Gold Project, Ontario</u>

We own a 30% interest in PC Gold, the joint venture company that owns the Pickle Crow Project. Our joint venture partner Auteco owns the remaining 70% of PC Gold, and is the current operator of the Pickle Crow Project. We also hold a 2% NSR on the Pickle Crow Project. For further information, see the section in this AIF entitled "*Investor Information - Material contracts - Pickle Crow Earn-In Agreement*".

The Pickle Crow Project hosts an Inferred Mineral Resource of 9.4 Mt grading 4.1 g/t Au and containing 1,230,500 oz. Au. The technical report in support of these resources, entitled "*An Updated Mineral Resource Estimate for the Pickle Crow Property, Patricia Mining Division, Northwestern Ontario, Canada*" and dated June 15, 2018, was prepared for us by Micon International Limited in accordance with NI 43-101, and is available under our SEDAR profile at <u>www.sedar.com</u>.

In 2020 and 2021, our joint venture partner Auteco completed an initial 45,000 m drill program at the Pickle Crow Project (the "**Phase 1 Program**"). On July 27, 2021, we announced the commencement by Auteco of a second phase, 50,000 m drill program at the Pickle Crow Project (the "**Phase 2 Program**", and together with the Phase 1 Program, the "**Auteco Program**"), and we announced the drill results of the Auteco Program to date.

The Phase 1 Program was comprised of 166 diamond drill holes totalling 45,522 m and such holes focused exclusively on near mine extensions and mineralized structures outside of the current resource area at the Pickle Crow Project. Auteco commenced a Phase 2 50,000m diamond drill campaign in June 2021 following the success of the Phase 1 45,000 m drill campaign, with a dual strategy of driving near-mine resource growth combined with early-stage exploration at regional targets. Of the current 50,000 m drill program, 15,000m (30%) is currently being dedicated to testing regional targets at Pickle Crow. Mapping, outcrop sampling and the acquisition of detail ground magnetics has also been completed by Auteco on the regional tenure outside of the current resource area.

**Pickle Crow Drill and Sampling Highlights**

The Phase 1 and Phase 2 Programs successfully intersected extensions to known mineralized structures, in addition to the discovery of previously undefined mineralization. Drill highlights from the Auteco Program in 2021 include:

· New, shallow high-grade gold discovery ("Cary Discovery") with drill results including:

o **5.8 m @ 16.2 g/t gold** from 112.8 m in AUDD0158 - **New Structural Zone** including **2.2 m @ 39.4 g/t** 

o **14.9 m @ 2.2 g/t gold** from 28.7 m in AUDD0137 – **New Structure** 

o **16.5 m @ 2.3 g/t gold** from 160.6 m in AUDD0141 – **New Structure** 

o **6.5 m @ 4.6 g/t gold** from 86.5 m in AUDD0138 – **New Structure** 

o **3.3 m @ 4.7 g/t gold** from 54.3 m in AUDD0134 – **New Structure** 

*Page 85*

· Extension of known, high-grade gold mineralization in the Shaft 3 and Shaft 1 areas with drill results including:

o **4.9 m @ 7.5 g/t gold** from 483.2 m in hole AUDD0152 - **New Structure** - Shaft 3

o **3.3 m @ 8.0 g/t gold** from 836.4 m in hole AUDD0166 - **80 m Extension Structure** - Shaft 3

o **6.5 m @ 6.6 g/t gold** from 838.1 m in AUDD0166W1 - **New Structure** - Shaft 3 including **1.8 m @ 21.2 g/t** 

o **4.9 m @ 4.7 g/t gold** from 514.1 m in AUDD0178 including **2.1 m @ 10.4 g/t** - **New Structure** - Shaft 3

o **1.0 m @ 14.1 g/t gold** from 432.0 m in AUDD0179 - **New Structure** - Shaft 3

o **1.3 m @ 21.4 g/t gold** from 82.1 m in hole AUDD0128 - **80 m Extension Structure** - Shaft 3

o **0.6 m @ 42.9 g/t gold** from 320.0 m in hole AUDD0128 - **80 m Extension Structure** - Shaft 3

o **4.6 m @ 7.5 g/t gold** from 183.5 m in hold AUDD0064 - **80 m Extension Structure** - Shaft 1

· Regional mapping and reconnaissance sampling yielded significant results, with outcropping veins at the Springer target returning rock chip results including:

o 145.7 g/t gold, 6.2 g/t gold, 5.7 g/t gold and 4.3 g/t gold

*Notes:*

---

| |
|:---|
| *Assaying for the Auteco Program was completed by AGAT laboratories in Thunder Bay, Ontario.* |
| *Prepared 30 g samples were analyzed for gold by lead fusion fire assay with an atomic absorption spectrometry finish. Samples greater than 5 g/t Au were reassayed by 50 g fire assay with gravimetric finish.* |
| *Reported widths are drilled core lengths; true widths are unknown at this time.* |
| *Cut-off grade of 1 g/t Au allowing for 1 m internal dilution.* |

---

*QA/QC Procedures*

The QA/QC program for the Auteco Program consists of the submission of duplicate samples and the insertion of certified reference materials (CRM), including low, medium and high-grade standards and coarse blanks, at regular intervals in the sample stream. One set of the four QA/QC sample types are inserted every 25 samples, consisting of one course duplicate, one quarter-split field duplicate, one CRM (altering between low, medium and high standards) and one blank. AGAT Laboratories, Auteco's laboratory service provider, also undertakes its own internal QA/QC program to ensure proper sample preparation and equipment calibration.

<u>Hope Brook Gold Project, Newfoundland</u>

Big Ridge currently holds a 51% interest in the in the Hope Brook Gold Project land may earn up to an 80% interest. For a summary of the key terms of the Hope Brook Earn-In Agreement, see the section in this AIF entitled "*Investor information - Material contracts - Hope Brook Earn-In Agreement".*

The Hope Brook Project covers an area of 26,650 ha in Newfoundland, including six mineral licenses, with a deposit hosted by pyritic silicified zones occurring within a deformed, strike-extensive advanced argillic alteration zone. The project has well maintained infrastructure on site, including an operational 28-person camp, an 1,100 m airstrip, ice-free docking facility and importantly, connection to the provincial electrical power grid via an on-site substation. The project was a former operating gold mine that produced 752,163 oz. Au from 1987 to 1997.

*Page 86*

On February 21, 2023, Big Ridge reported the following updated mineral resource estimate ("MRE") on the Hope Brook Gold Project. The MRE was completed by SGS Geological Services and is based on data from 763 surface and underground drill holes representing 164,865 m of drilling, including data for 60 surface drill holes for 19,090 m completed by Big Ridge in 2021 and 2022. The new resource estimate contemplates open-pit mineral extraction and identifies both in-pit resources and out-of-pit resources considered accessible by underground mining methods.

**Hope Brook Project Mineral Resource Statement, effective January 17, 2023**

---

| | | | | |
|:---|:---|:---|:---|:---|
| <br> **IN PIT** | <br> **IN PIT** | <br> **IN PIT** | <br> **IN PIT** | <br> **IN PIT** |
| <br> **Hope Brook** | <br> **Cut-off Grade**<br> **(g/t Au)** | <br> **Tonnes** | <br> **Grade**<br> **(Au g/t)** | <br> **Contained**<br> **Gold Ounces** |
| <br> **INDICATED** | <br> **INDICATED** | <br> **INDICATED** | <br> **INDICATED** | <br> **INDICATED** |
| <br> Main Zone | <br> 0.4 | <br> 14584000 | <br> 2.14 | <br> 1002000 |
| <br> **UNDERGROUND** | <br> **UNDERGROUND** | <br> **UNDERGROUND** | <br> **UNDERGROUND** | <br> **UNDERGROUND** |
| <br> **Hope Brook** | **Cut-off Grade**<br> **(g/t Au)** | <br> **Tonnes** | <br> **Grade**<br> **(Au g/t)** | <br> **Contained**<br> **Gold Ounces** |
| <br> **INDICATED** | <br> **INDICATED** | <br> **INDICATED** | <br> **INDICATED** | <br> **INDICATED** |
| <br> 240 Zone | <br> 2.0 | <br> 544000 | <br> 4.31 | <br> 75000 |
| <br> Main Zone | <br> 2.0 | <br> 1062000 | <br> 3.78 | <br> 129000 |
| <br> **INFERRED** | <br> **INFERRED** | <br> **INFERRED** | <br> **INFERRED** | <br> **INFERRED** |
| <br> 240 Zone | <br> 2.0 | <br> 1994000 | <br> 3.28 | <br> 210000 |
| <br> Main Zone | <br> 2.0 | <br> 221000 | <br> 2.96 | <br> 21000 |
| <br> **IN PIT AND UNDERGROUND** | <br> **IN PIT AND UNDERGROUND** | <br> **IN PIT AND UNDERGROUND** | <br> **IN PIT AND UNDERGROUND** | <br> **IN PIT AND UNDERGROUND** |
| <br> **Hope Brook** | <br> **Cut-off Grade**<br> **(g/t Au)** | <br> **Tonnes** | <br> **Grade**<br> **(Au g/t)** | <br> **Contained**<br> **Gold Ounces** |
| <br> **INDICATED** | <br> **INDICATED** | <br> **INDICATED** | <br> **INDICATED** | <br> **INDICATED** |
| <br> 240 Zone | <br> 2.0 | <br> 544000 | <br> 4.31 | <br> 75000 |
| <br> Main Zone | <br> 0.5 and 2.0 | <br> 15646000 | <br> 2.25 | <br> 1131000 |
| <br> **INFERRED** | <br> **INFERRED** | <br> **INFERRED** | <br> **INFERRED** | <br> **INFERRED** |
| <br> 240 Zone | <br> 2.0 | <br> 1994000 | <br> 3.28 | <br> 210000 |
| <br> Main Zone | <br> 2.0 | <br> 221000 | <br> 2.96 | <br> 21000 |

---

*Page 87*

*Notes:*

*1.* *The classification of the current Mineral Resource Estimate into Indicated and Inferred is consistent with current 2014 CIM Definition Standards - For Mineral Resources and Mineral Reserves* 

*2.* *All figures are rounded to reflect the relative accuracy of the estimate.* 

*3.* *All Resources are presented undiluted and in situ, constrained by continuous 3D wireframe models, and are considered to have reasonable prospects for eventual economic extraction.* 

*4.* *Mineral resources which are not mineral reserves do not have demonstrated economic viability. An Inferred Mineral Resource has a lower level of confidence than that applying to a Measured and Indicated Mineral Resource and must not be converted to a Mineral Reserve. It is reasonably expected that the majority of Inferred Mineral Resources could be upgraded to Indicated Mineral Resources with continued exploration.* 

*5.* *The update MRE is based on data for 763 surface and underground drill holes representing 164,865 m of drilling, including data for 60 surface drill holes for 19,090 m completed by Big Ridge in 2021 and 2022.* 

*6.* *The mineral resource estimate is based on 2 three-dimensional ("3D") resource models for the Main Zone and 240 Zones.* 

*7.* *High grade capping was applied to the 1.5 m composite data. A capping value of 50 g/t Au was to the Main Zone and 40 g/t Au for the 240 Zone.* 

*8.* *Average density values were assigned per zone.* 

*9.* *Gold is estimated for each mineralization domain. Blocks (5x5x5) within each mineralized domain were interpolated using 1.5 metre capped composites assigned to that domain. To generate grade within the blocks, the inverse distance squared (ID2) interpolation method was used for all domains.* 

*10.* *It is envisioned that parts of the Main Zone may be mined using open pit mining methods. Open pit mineral resources are reported at a base case cut-off grade of 0.4 g/t Au within a conceptual pit shell.* 

*11.* *It is envisioned that parts of the Main Zone as well as the 240 Zone may be mined using underground mining methods. A selected base case cut-off grade of 2.0 g/t Au is used to determine the underground mineral resource for the Main Zone and 240 Zone.The underground Mineral Resource grade blocks were quantified above the base case cut-off grade, below the constraining pit shell and within the constraining mineralized wireframes.* 

*12.* *Base case cut-off grades consider a metal price of US$1750.00/oz Au and considers a metal recovery of 86 % for Au.* 

*13.* *The pit optimization and in-pit base case cut-off grade of 0.4 g/t Au considers a mining cost of US$2.65/t rock and processing, treatment and refining, transportation and G&A cost of US$15.60/t mineralized material, and an overall pit slope of 55°. The underground base case cut-off grade of 2.0 g/t Au considers a mining cost of US$54.00/t rock and processing, treatment and refining, transportation and G&A cost of US$15.550. The cut-off grades should be re-evaluated in light of future prevailing market conditions (metal prices, exchange rates, mining costs etc.).* 

*14.* *The results from the pit optimization are used solely for the purpose of testing the "reasonable prospects for economic extraction" by an open pit and do not represent an attempt to estimate mineral reserves. There are no mineral reserves on the Property. The results are used as a guide to assist in the preparation of a Mineral Resource statement and to select an appropriate resource reporting cut-off grade.* 

*15.* *The estimate of Mineral Resources may be materially affected by environmental, permitting, legal, title, taxation, socio-political, marketing, or other relevant issues. There is no certainty that all or any part of the Inferred Mineral Resource will be upgraded to an Indicated or Measured Mineral Resource as a result of continued exploration. There is no other relevant data or information available that is necessary to make the technical report understandable and not misleading.* 

<u> </u>

Duquesne Gold Project, Québec

We acquired a 100% interest in the Duquesne Gold project located in the Abitibi Region of Québec (the "**Duquesne Project**") through our acquisition of Clifton Star in April 2016. The Abitibi Region of Québec is one of the most prospective and productive mineral regions in Canada with more than 100 years of continuous mining history and hosts a number of major Canadian mines.

*Page 88*

The property, which comprises 84 contiguous mining claims, covers an area of 2,364 ha and is situated along the Destor-Porcupine Break, which boasts historical production of 192 million ounces of gold. It is approximately 30 km northwest of the city of Rouyn-Noranda, and approximately 16 km east of the town of Duparquet, so it has excellent access to infrastructure and a skilled labour pool.

The Duquesne Project hosts: (i) an Indicated Mineral Resource of 1.9 Mt grading 3.33 g/t Au and containing 199,161 oz. Au, and (ii) an Inferred Mineral Resource of 1.6 Mt grading 5.58 g/t Au and containing 280,643 oz. Au. A technical report in support of these Mineral Resources, entitled "*43-101 Technical Report Resource Estimate of the Duquesne Gold Property*", was prepared by Genivar Limited Partnership in accordance with NI 43-101 and was dated July 26, 2011 and filed on SEDAR by Clifton Star on October 28, 2011 under its SEDAR profile. On May 25, 2016, the technical report was re-issued in First Mining's name by WSP Canada Inc.

<u>Pitt Gold Project, Québec</u>

We purchased a 100% interest in the Pitt Gold project located in the Abitibi Region of Québec (the "**Pitt Project**") from Brionor in April 2016. The property, which comprises 14 contiguous mineral claims, covers an area of 492 ha.

The Pitt Project is contiguous to our Duquesne Project, and close to our Duparquet Gold Project. It is approximately 35 km north of the city of Rouyn-Noranda, and approximately 7 km east of the town of Duparquet, so it has excellent access to infrastructure and a skilled labour pool.

The Pitt Project hosts an NI 43-101 Inferred Mineral Resource of 1.1 Mt grading 7.42 g/t Au and containing 257,000 oz. Au. The technical report in support of these resources, entitled "*NI 43-101 Technical Report and Review of the Preliminary Mineral Resource Estimate for the Pitt Gold Project Duparquet Township Abitibi Region, Quebec, Canada*", was prepared in accordance with NI 43-101 by Micon International Ltd., with an effective date of December 6, 2016, and was filed by us on SEDAR on January 6, 2017 under our SEDAR profile at <u>www.sedar.com</u>.

<u>Porcupine East Property</u>

In February 2023 we acquired the Porcupine East Property, located adjacent to our Duparquet Gold Project, connecting our land package to our Pitt and Duquesne Projects to the east. The Porcupine East Property is strategically located between the Duparquet Project and the Pitt and Duquesne Projects. With the addition of the Porcupine East Property, our land position has increased by 1,868 hectares for a total land tenure of over 5,800 hectares in Quebec, along with an additional 7 km of strategic ground across the Destor-Porcupine Zone. The new amalgamated property now includes 3 past producing gold mines, 1 gold deposit, and 17 mineral showings.

*Page 89*

The following map shows the location of the Duquesne Gold Project, the Pitt Gold Project and the Porcupine East Property, all of which are in close proximity to our Duparquet Project:

![](firstmining_ex991img65.jpg)

*Page 90*

**Risks that can affect our business**

There are risks in every business.

The nature of our business means we face many kinds of risks and hazards - some that relate to the mineral exploration industry in general, and others that apply to specific properties, operations or planned operations. These risks could have a significant impact on our business, earnings, cash flows, financial condition, results of operations or prospects.

The following section describes the risks that are most material to our business. This is not, however, a complete list of the potential risks we face - there may be others we are not aware of, or risks we believe are not material today that could become material in the future. We have in place systems and procedures appropriate for a company at our stage of development to manage these risks, to the extent possible, but there is no assurance that we will be successful in preventing the harm that any of these risks could cause.

**Types of risk**

· Exploration, development, production and operational risks p. 96

· Financial risks p. 101

· Political risks p. 105

· Regulatory risks p. 106

· Environmental risks p. 107

· Industry risks p. 109

· Other risks p. 110

**Exploration, development, production and operational risks**

**Exploration and development risks**

The exploration for and development of minerals involves significant risks, which even a combination of careful evaluation, experience and knowledge may not eliminate. These risks include:

· few properties that are explored are ultimately developed into producing mines;

· there can be no guarantee that the estimates of quantities and qualities of minerals disclosed will be economically recoverable;

· with all mining operations there is uncertainty and, therefore, risk associated with operating parameters and costs resulting from the scaling up of extraction methods tested in pilot conditions; and

· mineral exploration is speculative in nature and there can be no assurance that any minerals discovered will result in an increase in our resource base.

*Page 91*

Exploration and development of mineral properties is capital intensive and unsuccessful exploration or development programs could have a material adverse impact on our operations and financial condition.

**Operational hazards and risks**

Our operations will be subject to all of the hazards and risks normally encountered in the exploration and development of minerals. To the extent that we take a property to production, we will be subject to all of the hazards and risks associated with the production of minerals. These risks include:

· unusual and unexpected geological formations;

· rock falls;

· seismic activity;

· flooding and other conditions involved in the extraction of material, any of which could result in damage to, or destruction of, mines and other producing facilities, damage to life or property, environmental damage and possible legal liability;

· environmental pollution, and consequent liability that could have a material adverse impact on our business, operations and financial performance;

· mechanical equipment, facility performance problems and industrial accidents; and

· periodic disruptions due to inclement or hazardous weather conditions.

**Substantial expenditures**

Substantial expenditures are required to establish Mineral Resources and Mineral Reserves through drilling, to develop metallurgical processes to extract the metal from the ore and, in certain cases, to develop infrastructure at any site chosen for exploration. Although substantial benefits may be derived from the discovery of a major mineralized deposit, no assurance can be given that minerals will be discovered in sufficient quantities to justify commercial operations or that funds required for development can be obtained on a timely basis.

The economics of developing mineral properties is affected by many factors including:

· the cost of operations, which may fluctuate due to a variety of factors, including inflation;

· variations in the grade of mineralized material mined;

· fluctuations in metal markets; and

· such other factors as government regulations, including regulations relating to royalties, allowable production, importing and exporting of minerals and environmental protection.

The remoteness and restrictions on access of properties in which we have an interest will have an adverse effect on expenditures as a result of higher infrastructure costs. There are also physical risks to the exploration personnel working in the terrain in which our properties are located, occasionally in poor climate conditions.

*Page 92*

**No history of mineral production**

First Mining has no history of commercially producing metals from its mineral exploration properties. There can be no assurance that we will successfully establish mining operations or profitably produce gold or other precious metals on any of our properties. The development of mineral properties involves a high degree of risk and few properties that are explored are ultimately developed into producing mines. The commercial viability of a mineral deposit is dependent upon a number of factors which are beyond our control, including the attributes of the deposit, commodity prices, government policies and regulation and environmental protection. Fluctuations in the market prices of minerals may render Mineral Reserves and deposits containing relatively lower grades of mineralization uneconomic.

While our Springpole Project is currently in development, none of our other mineral properties are currently under development or production. The future development of any properties found to be economically feasible will require applicable licenses and permits and will require the construction and operation of mines, processing plants and related infrastructure. As a result, the development of any property will be subject to all of the risks associated with establishing new mining operations and business enterprises, including, but not limited to:

· the timing and cost of the construction of mining and processing facilities;

· the availability and costs of skilled labour and mining equipment;

· the availability and cost of appropriate smelting and/or refining arrangements;

· the need to obtain necessary environmental and other governmental approvals and permits and the timing of those approvals and permits; and

· the availability of funds to finance construction and development activities.

It is common in new mining operations to experience unexpected problems and delays during development, construction and mine start-up. In addition, delays in the commencement of mineral production often occur. Accordingly, there are no assurances that our activities will result in profitable mining operations or that mining operations will be established at any of our properties.

**Title risks**

Title to mineral properties, as well as the location of boundaries on the ground may be disputed. Moreover, additional amounts may be required to be paid to surface right owners in connection with any mineral exploration or development activities. At all properties where we have current or planned exploration activities, we believe that we have either contractual, statutory, or common law rights to make such use of the surface as is reasonably necessary in connection with those activities.

We do not have title insurance for any of our mining claims and our ability to ensure that we have obtained secure claims to individual mineral properties or mining concessions may be severely constrained. We have not conducted surveys of all our claims; therefore, the precise area and location of such claims may be in doubt. In addition, many of our mineral properties have had previous owners, and third parties may have valid claims (known or unknown) underlying our interests therein. Accordingly, our properties may be subject to prior unregistered liens, agreements, royalties, transfers or claims, including First Nations land claims, and title may be affected by, among other things, undetected defects. In January 2022 we became aware that the Cat Lake First Nation and certain other parties have filed a Statement of Claim against the Crown seeking an order from the Ontario Superior Court of Justice that all mineral tenure over which the Cat Lake First Nation claim exclusive aboriginal title (which includes the land where the Springpole Project is situated) be returned to them and all mining permits, leases, licenses and patents in respect of such lands be cancelled. We are continuing to monitor this claim but there is no assurance it will be resolved in the favour of the Crown. If the claim is resolved in favour of the Cat Lake First Nation this would have a material and adverse effect on our ability to operate and develop the Springpole Project. Please see the "*Political Risks - Indigenous Peoples*" in this AIF below for further information. In addition, we may be unable to explore our properties as permitted or to enforce our rights with respect to our properties. An impairment to or defect in our title to our properties could have a material adverse effect on our business, financial condition or results of operation.

*Page 93*

**Mineral Reserves/Mineral Resources**

The properties in which we hold an interest are currently considered to be in the early exploration stage only and do not contain a known body of commercial minerals beyond the PFS level. Mineral Resources and Mineral Reserves are, in large part, estimates and no assurance can be given that the anticipated tonnages and grades will be achieved or that the particular level of recovery will be realized.

Mineral Resources on our properties have been determined based upon assumed cut-off grades, metal prices and operating costs at the time of calculation, as set out in the applicable technical reports. Future production, if any, could differ dramatically from Mineral Resource and Mineral Reserve estimates because, among other reasons:

· mineralization or formations could be different from those predicted by drilling, sampling and similar examinations;

· calculation errors could be made in estimating Mineral Resources and Mineral Reserves;

· increases in operating mining costs and processing costs could adversely affect Mineral Resources and Mineral Reserves;

· the grade of the Mineral Resources and Mineral Reserves may vary significantly from time to time and there is no assurance that any particular level of metals may be recovered from the ore; and

· declines in the market price of the metals may render the mining of some or all of the Mineral Reserves uneconomic.

Estimated Mineral Resources may require downward revisions based on changes in metal prices, further exploration or development activity, increased production costs or actual production experience. This could materially and adversely affect estimates of the tonnage or grade of mineralization, estimated recovery rates or other important factors that influence Mineral Resource and Mineral Reserve estimates.

Any reduction in estimated Mineral Resources as a result could require material write downs in investment in the affected mining property and increased amortization, reclamation and closure charges, which could have a material and adverse effect on future cash flows for the property and on our earnings, results of operations and financial condition.

Because we do not currently have any producing properties, mineralization estimates for our properties may require adjustments or downward revisions based upon further exploration or development work or actual future production experience. In addition, the grade of mineralized material ultimately mined, if any, may differ from that indicated by drilling results. There can be no assurance that minerals recovered in small-scale tests will be duplicated in large-scale tests under on- site conditions or in production scale.

*Page 94*

Extended declines in market prices for gold or other metals may render portions of our mineralization uneconomic and result in reduced reported mineralization. Any material reductions in mineralization estimates, or of the ability to extract mineralized material from our properties, could (directly or indirectly) have a material adverse effect on our results of operations or financial condition.

**Capital costs, operating costs, production and economic returns**

Actual capital costs, operating costs, production and economic returns with respect to our properties may differ significantly from those we have anticipated and there are no assurances that any future development activities will result in profitable mining operations. The capital costs required to develop or take our projects into production may be significantly higher than anticipated. To the extent that such risks impact upon any such properties, there may be a material adverse effect on results of operations on such properties which may in turn have a material adverse effect on our financial condition.

None of our mineral properties have sufficient operating history upon which we can base estimates of future operating costs. Decisions about the development of these and other mineral properties will ultimately be based upon feasibility studies. Feasibility studies derive estimates of cash operating costs based upon, among other things:

· anticipated tonnage, grades and metallurgical characteristics of the mineralized material to be mined and processed;

· anticipated recovery rates metals from the mineralized material;

· cash operating costs of comparable facilities and equipment; and

· anticipated climatic conditions.

Cash operating costs, production and economic returns, and other estimates contained in studies or estimates prepared by or for us, may differ significantly from those anticipated by our current studies and estimates due to a variety of factors, including increased inflation, the impact of the COVID-19 crisis and ongoing hostilities in the Ukraine, and there can be no assurance that our actual operating costs will not be higher than currently anticipated.

**Property interests**

The agreements pursuant to which we hold rights to certain of our properties provide that we must make a series of cash payments over certain time periods or make minimum exploration expenditures. If we fail to make such payments or expenditures in a timely manner, we may lose some or all of our interest in those projects.

**Availability of supplies**

As with other mineral exploration companies, certain raw materials, supplies and other critical resources used in connection with our operations are obtained from a sole or limited group of suppliers. Due to an increase in activity in the global mining sector, there has been an increase in global demand for such resources. In addition, the COVID-19 outbreak has caused disruption in global supply chains and ongoing hostilities in the Ukraine may cause disruptions in global supply chains which may reduce or eliminate the availability of certain supplies, particularly those sourced from outside of Canada. Any decrease in the supplier's inventory could cause unanticipated cost increases, an inability to obtain adequate supplies and delays in delivery times, thereby impacting operating costs, and timing of exploration and development programs.

*Page 95*

**Lack of infrastructure**

The completion of the development of our development projects is subject to various requirements, including the availability and timing of acceptable arrangements for electricity or other sources of power, water and transportation facilities. The lack of availability on acceptable terms or the delay in the availability of any one or more of these items could prevent or delay the development of our exploration projects. If adequate infrastructure is not available in a timely manner, there can be no assurance that: the development of our projects will be completed on a timely basis, if at all; any resulting operations will achieve the anticipated production volume; or the ongoing operating costs associated with the development of our projects will not be higher than anticipated.

**Personnel recruitment and retention**

The success of our operations and development projects depend in part on our ability to attract and retain geologists, engineers, metallurgists and other personnel with specialized skill and knowledge about the mining industry in the geographic areas in which we operate. The number of persons skilled in exploration and development of mining properties is limited and competition for such persons is intense. As our business grows, we may require additional key financial, administrative, and mining personnel as well as additional operations staff. There can be no assurance that we will be successful in attracting, training, and retaining qualified personnel as competition for persons with these skill sets increases. Due to travel restrictions as a result of the COVID-19 crisis we may be unable to source additional personnel from outside the local area, which may greatly reduce the number of potential qualified candidates for key positions. If we are unable to attract and retain sufficiently trained, skilled or experienced personnel, our business may suffer and we may experience significantly higher staff or contractor costs, which could have a material adverse effect on our operations and financial condition.

**Financial risks**

**Substantial capital requirements**

Our management team anticipates that we may make substantial capital expenditures for the exploration and development of our properties, in the future. As we are in the exploration stage with no revenue being generated from the exploration activities on our mineral properties, we have limited ability to raise the capital necessary to undertake or complete future exploration work, including drilling programs. As of the date of this AIF, financial markets have suffered significant disruption due to the COVID-19 crisis and the ongoing hostilities in the Ukraine and sanctions imposed by many nations on Russia and Belarus could cause additional disruptions, particularly if hostilities spread to other nations. Moreover, the recent risk associated with the financial services and banking industries may impact the global financial economy. There can be no assurance that debt or equity financing will be available or sufficient to meet these requirements or for other corporate purposes or, if debt or equity financing is available, that it will be on terms acceptable to us and any such financing may result in substantial dilution to existing shareholders. Moreover, future activities may require us to alter our capitalization significantly. Our inability to access sufficient capital for our operations could have a material adverse effect on our financial condition, results of operations or prospects. In particular, failure to obtain such financing on a timely basis could cause us to forfeit our interest in certain properties, miss certain acquisition opportunities and reduce or terminate our operations.

*Page 96*

**History of net losses**

We have received no revenue to date from activities on our properties, and there is no assurance that any of our properties will generate earnings, operate profitably or provide a return on investment in the future. We have not determined that production activity is warranted as of yet on any of our mineral properties. Even if we (alone or in conjunction with a third party) undertake development and production activities on any of our mineral properties, there is no certainty that we will produce revenue, operate profitably or provide a return on investment in the future.

We are subject to all of the risks associated with new mining operations and business enterprises including, but not limited to:

· the timing and cost, which can be considerable, for the further construction of mining and processing facilities;

· the availability and costs of skilled labour, consultants, mining equipment and supplies;

· the availability and cost of appropriate smelting and/or refining arrangements;

· the need to obtain necessary environmental and other governmental approvals, licenses and permits, and the timing of those approvals, licenses and permits; and

· the availability of funds to finance construction and development activities.

It is common in new mining operations to experience unexpected problems and delays during construction, development, and mine start-up. In addition, delays in mineral production often occur. Accordingly, there are no assurances that our activities will result in sustainable profitable mining operations or that we will successfully establish mining operations or profitably produce metals at any of our other properties.

**Potential volatility of share price**

The securities markets in Canada have in the past experienced a high level of price and volume volatility, and the market price of securities of many junior companies have experienced wide fluctuations in price. The market price of our shares may be volatile and could be subject to wide fluctuations due to a number of factors, including but not limited to: actual or anticipated fluctuations in the results of our operations; changes in estimates of our future results of operations by management or securities analysts; and general economic or industry changes. In addition, the financial markets are currently experiencing significant price and value fluctuations as a result of the COVID-19 crisis and the ongoing hostilities in the Ukraine and sanctions imposed by many nations on Russia and Belarus. Such fluctuations may have a disproportionate impact on equity securities of venture issuers which is unrelated to the operating performance of these companies. Broad market fluctuations, as well as economic conditions generally and in the mining industry specifically, may also adversely affect the market price of our shares.

**Non-Canadian investors**

We are a public Canadian corporation, with our principal place of business in Canada. A majority of our directors and officers are residents of Canada and a significant portion of our assets and the assets of a majority of our directors and officers are located outside the United States. Consequently, it may be difficult for US or foreign investors to effect service of process within their local jurisdiction upon First Mining or its directors or officers or such experts who are residents of Canada, or to realize in their local jurisdiction upon judgments of local courts (including, but not limited to, judgments predicated upon civil liabilities under the United States Securities Act of 1933, as amended). Investors should not assume that Canadian courts: (i) would enforce judgments of foreign courts obtained in actions against First Mining or such directors, officers or experts (including, but not limited to, judgments predicated upon the civil liability provisions of the US federal securities laws or the securities or "blue sky" laws of any state within the United States); or (ii) would enforce, in original actions, liabilities against First Mining or such directors, officers or experts predicated upon foreign securities laws (including, but not limited to, the US federal securities laws or any state securities or "blue sky" laws). In addition, the protections afforded by Canadian securities laws may not be available to foreign investors.

*Page 97*

**Volatility of mineral prices**

Metal prices are affected by numerous factors beyond our control, such as industrial demand, inflation and expectations with respect to the rate of inflation, the strength of the US dollar and of other currencies, interest rates, forward sales by producers, production and cost levels, changes in investment trends, global and regional levels of supply and demand, metal stock levels maintained by producers, inventory carrying costs, availability, demand and costs of metal substitutes, international economic and political conditions, armed hostilities, economic sanctions, reduced demand resulting from obsolescence of technologies and processes utilizing metals and increased production due to new mine developments and improved mining and production levels. Gold prices are sometimes subject to rapid short-term changes because of speculative activities, and the market price of gold and other metals may not remain at current levels. If these prices were to decline significantly or for an extended period of time, we might be unable to continue our operations, develop our properties or fulfill our obligations under agreements with our partners or under our permits and licenses. As a result, we might lose our interest in, or be forced to sell, some of our properties. In the event of a sustained, significant drop in gold prices, we may be required to re-evaluate our assets, resulting in reduced estimates of Mineral Resources and Mineral Reserves and in material write-downs of our investment in mining properties. Furthermore, since gold prices are established in US dollars, a significant decrease in the value of the Canadian dollar relative to the US dollar coupled with stable or declining gold prices could adversely affect our results with respect to development of and eventual sale of gold.

**Global financial conditions**

Global financial conditions have, at various times in the past and may, in the future, experience extreme volatility. Many industries, including the mining industry, are impacted by volatile market conditions. Global financial conditions may be subject to sudden and rapid destabilizations in response to economic shocks or other events, such as developments concerning COVID-19, armed hostilities (such as those ongoing in the Ukraine) and economic sanctions. A slowdown in the financial markets or other economic conditions, including but not limited to consumer spending, employment rates, business conditions, inflation, fluctuations in fuel and energy costs, consumer debt levels, lack of available credit, instability of certain financial institutions, the state of the financial markets, interest rates and tax rates, may adversely affect our growth and financial condition. Future economic shocks may be precipitated by a number of causes, including government debt levels, fluctuations in the price of oil and other commodities, the volatility of metal prices, geopolitical instability, changes in laws or governments, war, terrorism, the volatility of currency exchanges, inflation or deflation, the devaluation and volatility of global stock markets, pandemics and natural disasters. Any sudden or rapid destabilization of global economic conditions could impact our ability to obtain equity or debt financing in the future on terms favourable to us or at all. In such an event, our operations and financial condition could be adversely impacted.

*Page 98*

**Public Health Crises**

Our business, operations and financial condition could be 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. As at the date of this AIF, the global reactions to the spread of COVID-19 have led to, among other things, some restrictions on travel and quarantines. While these effects are expected to be temporary, the duration of the disruptions to business internationally and the related financial impact on the Company and the economy in general continues to be uncertain. Such public health crises can result in disruptions and extreme volatility in financial markets and global supply chains as well as declining trade and market sentiment and reduced mobility of people, all of which could impact commodity prices, interest rates, credit ratings, credit risk, availability of financing and inflation. The risks to the Company of such public health crises also include risks to employee health and safety and may result in a slowdown or temporary suspension of operations at some or all of our mineral properties as well as our head office. Although we have the capacity to continue certain administrative functions remotely, many other functions, including the conduct of exploration and development programs, cannot be conducted remotely and may be impacted or delayed if we experience additional limitations on employee mobility.

As of the date of this AIF, the province of Ontario, where most of our properties are located, has announced the repeal of many COVID-19 related restrictions, however there is no guarantee that any such restrictions will not be reimposed and therefore the extent to which COVID-19 may impact the Company remains uncertain and it is possible that COVID-19 could have a material adverse effect on the Company's business, results of operations and financial condition. There can be no assurances that the Company will not be required to demobilize, or further demobilize, its personnel and contractors at any of its mineral projects due to a public health crisis, including without limitation, the ongoing COVID-19 pandemic. Any such demobilization may have an adverse impact on the Company's ability to conduct exploration and further advance its work programs on the affect properties and on the Company's business, financial condition or results of operations.

**Equity Interests in Other Issuers**

We may from time to time hold shares or other financial interests in other companies, including publicly listed companies. In particular, we currently hold common shares of Treasury Metals and Big Ridge. As a significant shareholder, we are subject to the risk that these companies may make business, financial or management decisions with which we do not agree or may take risks or otherwise act in a manner that does not serve our interests. In addition, the market price of the shares of such companies may be highly volatile and will be subject to many of the same factors as apply to our common shares. These shares may also be subject to restrictions on resale or may be illiquid. We may therefore have difficulty in selling such securities or realizing value for them.

**Dividends**

To date, we have not paid any dividends on our outstanding common shares and we have no plans to declare or pay dividends in the near future. Any decision to pay dividends on our shares will be made by our Board on the basis of our earnings, financial requirements and other conditions.

**Dilution**

The number of common shares we are authorized to issue is unlimited. We may, in our sole discretion, issue additional common shares from time to time, and the interests of the shareholders may be diluted thereby.

*Page 99*

**Political risks**

**Indigenous peoples**

Various international and national laws, codes, court decisions, resolutions, conventions, guidelines, and other materials (collectively, the "**Instruments**") relate to the rights of Indigenous peoples, including the First Nations and Metis of Canada. We operate in some areas presently or previously inhabited or used by Indigenous peoples including areas in Canada over which Indigenous peoples have established or asserted Aboriginal treaty rights, Aboriginal title, or Aboriginal rights. Many of these rights or titles impose obligations on governments and private parties as they relate to the rights of Indigenous people concerning resource development. Some mandate that government consult with, and if required, accommodate Indigenous people for government actions which may affect Indigenous people, including actions to approve or grant mining rights or exploration, development or production permits. The obligations of government and private parties under the various international and national Instruments pertaining to Indigenous people continue to evolve and be defined.

Government policy and its implementation regarding Indigenous consultation (including the requirements that are imposed on the mining industry) and accommodation continue to change. In certain circumstances, Indigenous communities are entitled to be consulted prior to, and during, resource development. The consultation and accommodation process and expectations of parties (government, Indigenous communities and industry proponents) involved can vary considerably from project to project, within stages of the project life and among Indigenous communities. There can be overlapping or inconsistent Indigenous or treaty claims respecting a project. These can contribute to process uncertainty, increased costs, delay in receiving required approvals, and potentially, an inability to secure the required approvals for a project, each of which could have a material adverse effect on the Company's business, operations, results of operations, financial condition and future prospects. In addition, the federal government has committed to introducing legislation to implement the *United Nations Declaration on the Rights of Indigenous Peoples* ("**UNDRIP**")*.* Some provinces and territories are also considering, or have introduced, similar legislation. It is uncertain how the federal and other governments intend to implement UNDRIP. Implementation may add additional uncertainty as to the nature and extent of Aboriginal rights or title and may also include new processes and additional consultation requirements for project development and operations, which may increase costs, increase approval timelines and impose development and operational additional obligations or restrictions.

Our current operations and current and future exploration program may be subject to a risk that one or more groups of Indigenous people may oppose the operations or development of any of our properties or on properties in which we hold a direct or indirect interest, even where we have entered into agreements with applicable Indigenous and non-Indigenous authorities. Such opposition may be directed through legal or administrative proceedings or expressed in manifestations such as protests, roadblocks or other forms of public expression against our activities. Opposition by Indigenous people to our operations may require modification of or preclude development of our projects or may require us to enter into agreements with Indigenous people with respect to projects on such properties. Such agreements or restrictions on operations may have a material adverse effect on our business, financial condition and results of operations. Even where such agreements have been entered into, there can be no certainty that there will not be disagreements between the Company and groups or sub-groups of Indigenous persons which may result in project delays or have other material adverse effects on the Company. In January 2022, we became aware that the Cat Lake First Nation and certain other parties filed a Statement of Claim against the Crown seeking an order from the Ontario Superior Court of Justice that all mineral tenure over which the Cat Lake First Nation claim exclusive aboriginal title (which includes the land where the Springpole Project is situated) be returned to them and all mining permits, leases, licenses and patents in respect of such lands be cancelled. We recently became aware that the Crown's Statement of Defence was filed on February 10, 2023, with the Crown seeking a dismissal of the Cat Lake Claim and putting forward a cross-claim against the Province of Ontario for contribution and indemnity in the event Canada is found liable to pay monies to the Cat Lake First Nation as a result of the Cat Lake Claim. We are continuing to monitor this claim but there is no assurance it will be resolved in favour of the Crown. If the claim is resolved in favour of the Cat Lake First Nation this would have a material and adverse effect on our ability to operate and develop the Springpole Project. In addition, even if the Cat Lake First Nation's claim is not wholly successful, it could result in process uncertainty, increased costs, delay in receiving required approvals, and potentially, an inability to secure the required approvals for the Springpole Project.

*Page 100*

**Regulatory risks**

**Government approvals**

Our activities are subject to government approvals, various laws governing prospecting, development, land resumptions, production taxes, labour standards and occupational health, mine safety, toxic substances and other matters, including issues affecting local First Nations populations. The costs associated with compliance with these laws and regulations can be substantial. Although we believe our activities are carried out in accordance with all applicable rules and regulations, no assurance can be given that new rules and regulations will not be enacted or that existing rules and regulations will not be applied in a manner which could limit or curtail production or development, or cause additional expense, capital expenditures, restrictions or delays in the development of our properties. Amendments to current laws and regulations governing operations and activities of exploration and mining, or more stringent implementation thereof, could have a material adverse impact on our business, operations and financial performance. Further, the mining licenses and permits issued in respect of our projects may be subject to conditions which, if not satisfied, may lead to the revocation of such licenses. In the event of revocation, the value of our investments in such projects may decline.

**Mineral claims, licenses and permitting**

Our mineral claims, licenses and permits are subject to periodic renewal and may only be renewed a limited number of times for a limited period of time. While we anticipate that renewals will be given as and when sought, there is no assurance that such renewals will be given as a matter of course and there is no assurance that new conditions will not be imposed in connection therewith. Our business objectives may also be impeded by the costs of holding and/or renewing the mineral claims, licenses and permits. In addition, the duration and success of efforts to obtain and renew mineral claims, licenses and permits are contingent upon many variables not within our control.

Our current and anticipated future operations, including further exploration, development activities and commencement of production on our properties, require licenses and permits from various governmental authorities. Our business requires many environmental, construction and mining permits, each of which can be time-consuming and costly to obtain, maintain and renew. In connection with our current and future operations, we must obtain and maintain a number of permits that impose strict conditions, requirements and obligations on the Company, including those relating to various environmental and health and safety matters. To obtain, maintain and renew certain permits, we are required to conduct environmental assessments pertaining to the potential impact of our operations on the environment and to take steps to avoid or mitigate those impacts. We cannot be certain that all licenses and permits that we may require for our operations will be obtainable on reasonable terms or at all. Delays or a failure to obtain such licenses and permits, or a failure to comply with the terms of any such licenses and permits that we have obtained, could have a material adverse impact on First Mining.

*Page 101*

On August 28, 2019, the *Impact Assessment Act* came into force and replaced the *Canadian Environmental Assessment Act,* thereby establishing a new environmental assessment process. It is uncertain how the new assessment process adopted by the federal government will result in a more efficient approval process. The *Impact Assessment Act* broadens the assessment factors to include health, economy, social, gender, and sustainability considerations. The lack of regulatory certainty is likely to have an influence on investment decisions for major projects. Even when projects are approved on a federal level, such projects often face further delays due to interference by provincial and municipal governments, as well as court challenges related to issues such as Indigenous rights, the government's duty to consult and accommodate Indigenous peoples and the sufficiency of the relevant environmental review processes. Such political and legal opposition creates further uncertainty.

**Anti-bribery legislation**

Our activities are subject to a number of laws that prohibit various forms of corruption, including domestic laws, that prohibit both commercial and official bribery and anti-bribery laws that have a global reach such as the *Corruption of Foreign Public Officials Act*. The increasing number and severity of enforcement actions in recent years present particular risks with respect to our business activities, to the degree that any employee or other person acting on our behalf might offer, authorize, or make an improper payment to a government official, party official, candidate for political office, or political party, an employee of a state-owned or state-controlled enterprise, or an employee of a public international organization.

**Transparency in the extractive industry**

The *Extractive Sector Transparency Measures Act* (Canada) ("**ESTMA**") requires that, as a Canadian publicly listed corporation, we report annually on payments of $100,000 or more made to any level of government in Canada or abroad related to a single project. The reporting applies to taxes, licences, fees, royalties, production entitlements, bonuses, dividends, fines and infrastructure payments. The Company is currently up to date on its filings under ESTMA. If the Company becomes subject to an enforcement action or is otherwise in violation of ESTMA, this may result in significant penalties, fines and/or sanctions which may have a material adverse effect on the Company's financial position and reputation. Our reports under ESTMA are publicly available on the Department of Natural Resources website (<u>www.nrcan.gc.ca</u>).

*Page 102*

**Environmental risks**

**Environmental laws and regulations**

All phases of the mining business present environmental risks and hazards and are subject to environmental regulation pursuant to a variety of international conventions and state and municipal laws and regulations. Environmental legislation provides for, among other things, restrictions, conditions and prohibitions on, amongst other things, spills, releases or emissions of various substances produced in association with mining operations and development. The legislation also requires that mines and exploration sites be operated, maintained, abandoned and reclaimed to the satisfaction of applicable regulatory authorities and may require the deposit of adequate reclamation and remediation security. Compliance with such legislation can require significant expenditures and a breach may result in the imposition of fines and penalties, some of which may be material. Environmental legislation is evolving in a manner expected to result in stricter standards and enforcement, larger fines and liability and potentially increased capital expenditures and operating costs. Environmental assessments of proposed projects carry a heightened degree of responsibility for companies and directors, officers and employees. Companies engaged in exploration and development of mineral properties may from time to time experience increased costs and delays in exploration and production as a result of the need to comply with applicable laws, regulations and permits. The cost of compliance with changes in governmental regulations has a potential to reduce the profitability of operations.

We believe we are in substantial compliance with all material laws and regulations which currently apply to our activities. We cannot give any assurance that, notwithstanding our precautions and limited history of activities, breaches of environmental laws (whether inadvertent or not) or environmental pollution will not result in additional costs or curtailment of planned activities and investments, which could have a material and adverse effect on our future cash flows, earnings, results of operations and financial condition. Failure to comply with applicable laws, regulations, and permitting requirements may result in enforcement actions thereunder, including orders issued by regulatory or judicial authorities causing operations to cease or be curtailed, and may include corrective measures requiring capital expenditures, installation of additional equipment, or remedial actions. Companies engaged in mining operations may be required to compensate those suffering loss or damage by reason of the mining activities and may have civil or criminal fines or penalties imposed for violations of applicable laws or regulations and, in particular, environmental laws even where there has been no intentional wrong-doing.

Amendments to current laws, regulations and permits governing operations and activities of mining companies, or more stringent implementation thereof, could have a material adverse impact on us and cause increases in capital expenditures or any future production costs or require abandonment or delays in the development of new mining properties.

**Compliance with emerging climate change regulations**

Climate change is an international concern and poses risks to issuers of both direct and indirect effects of physical climate changes and government policy including climate change legislation and treaties. Both types of risks could result in increased costs, and therefore decreased profitability of our operations. Governments at all levels may be moving towards enacting legislation to address climate change concerns, such as requirements to reduce emission levels and increase energy efficiency, and political and economic events may significantly affect the scope and timing of climate change measures that are ultimately put in place. Where legislation has already been enacted, such regulations may become more stringent, which may result in increased costs of compliance. There is no assurance that compliance with such regulations will not have an adverse effect on our results of operations and financial condition. Furthermore, given the evolving nature of the debate related to climate change and resulting requirements, it is not possible to predict the impact on our results of operations and financial condition.

*Page 103*

**Physical impacts of climate change**

Climate change may result in a number of physical impacts on our business, including an increasing frequency of extreme weather events (such as increased periods of snow and increased frequency and intensity of storms), water shortages and extreme temperatures, which have the potential to disrupt our exploration and development plans and may have other impacts on our business, including transportation difficulties and supply disruptions for, amongst other things, consumables (diesel, tires, sodium cyanide, etc.) and reagents. There can be no assurance that efforts to mitigate the risks of climate changes will be effective and that the physical risks of climate change will not have an adverse effect on the Company's operations and profitability.

**Industry risks**

**Speculative nature of mineral development activities**

Resource exploration and development is a speculative business, characterized by a number of significant risks including, among other things, unprofitable efforts resulting not only from the failure to discover mineral deposits but from finding mineral deposits which, though present, may, for a variety of factors not be economic to produce.

The marketability of minerals acquired or discovered by us may be affected by numerous factors which are beyond our control and which cannot be accurately predicted, such as:

· market fluctuations;

· the proximity and capacity of milling facilities;

· mineral markets;

· processing equipment; and

· government regulations, including regulations relating to royalties, allowable production, importing and exporting of minerals and environmental protection.

Estimates of Mineral Resources, Mineral Reserves, mineral deposits and production costs can also be affected by such factors as:

· environmental permitting regulations and requirements;

· weather;

· environmental factors;

· unforeseen technical difficulties;

· unusual or unexpected geological formations; and

· work interruptions.

In addition, the grade of mineralized material ultimately mined may differ from that indicated by drilling results.

*Page 104*

Short term factors relating to mineral properties, such as the need for orderly development of mineralized bodies or the processing of new or different grades, may also have an adverse effect on mining operations and on the results of operations. Material changes in Mineral Reserves, grades, stripping ratios or recovery rates may affect the economic viability of any project.

Our mineral properties are all in the exploration stage only and are without known bodies of commercial mineralized material. Few properties which are explored are ultimately developed into producing mines. Major expenses may be required to establish Mineral Reserves, develop metallurgical processes and construct mining and processing facilities at a particular site. There is no assurance that our mineral exploration activities will result in any discoveries of new commercial bodies of mineralized material. There are no reassurances that commercial production activities will commence on any of our properties.

**Competition**

The mining industry is highly competitive. We compete with companies for the acquisition, exploration and development of gold and other precious and base metals, and for capital to finance such activities, and such companies may have similar or greater financial, technical and personnel resources available to them.

**Other risks**

**Reliance on key employees**

We manage our business with a number of key personnel, including key contractors, the temporary or permanent loss or unavailability (including as a result of exposure to or quarantine as a result of COVID-19) of a number of whom could have a material adverse effect on us. In addition, as our business develops and expands, we believe that our future success will depend greatly on our continued ability to attract and retain highly-skilled and qualified personnel and contractors. In assessing the risk of an investment in our shares, potential investors should realize that they are relying on the experience, judgment, discretion, integrity and good faith of our management team and board of directors. We cannot be certain that key personnel will continue to be employed by us or that we will be able to attract and retain qualified personnel and contractors in the future. Failure to retain or attract key personnel could have a material adverse effect on us. We do not maintain "key person" insurance policies in respect of our key personnel.

**Conflicts of interest**

Certain directors and officers will be engaged in, and will continue to engage in, other business activities on their own behalf and on behalf of other companies (including mineral companies) and, as a result of these and other activities, such directors and officers may become subject to conflicts of interest from time to time. In addition, Keith Neumeyer, a director of the Company, is the Chief Executive Officer of First Majestic and Raymond Polman, a director of the Company, is a director of First Majestic. and accordingly may be considered to have a conflict of interest with respect to First Majestic and the Springpole Stream Agreement. The BCBCA provides that if a director or senior officer has a material interest in a contract or proposed contract or agreement that is material to the issuer, the director or senior officer must disclose their interest in such contract or agreement and must refrain from voting on any matter in respect of such contract or agreement, subject to and in accordance with the BCBCA. To the extent that conflicts of interest arise, such conflicts will be resolved in accordance with the provisions of the BCBCA and in accordance with our Code of Business Conduct and Ethics. As a result of a conflict of interest, we may miss the opportunity to participate in certain transactions, which may have a material adverse effect on our financial position.

*Page 105*

**Uninsured risks**

Our business is subject to a number of risks and hazards, including adverse environmental conditions, industrial accidents, labour disputes, unusual or unexpected geological conditions, ground or slope failures, cave-ins, changes in the regulatory environment and natural phenomena, such as inclement weather conditions, floods and earthquakes. Such occurrences could result in damage to our properties, personal injury or death, delays in program development, monetary losses and possible legal liability.

Despite efforts to attract and retain qualified personnel, as well as the retention of qualified consultants, to manage our interests, even when those efforts are successful, people are fallible and human error and mistakes could result in significant uninsured losses to us. These could include, but are not limited to, loss or forfeiture of mineral claims or other assets for non-payment of fees or taxes, erroneous or incomplete filings or non-fulfillment of other obligations, significant tax liabilities in connection with any tax planning effort we might undertake or mistakes in interpretation and implementation of tax laws and practices, and legal claims for errors or mistakes by our personnel.

Although we maintain insurance to protect against certain risks in amounts that we consider reasonable, our insurance will not cover all the potential risks associated with our operations. We may also be unable to maintain insurance to cover these risks at economically feasible premiums. Insurance coverage may not continue to be available or may not be adequate to cover any resulting liability. Moreover, insurance against certain risks, such as environmental pollution or other hazards as a result of exploration and production, is not generally available to us or to other mineral exploration companies on acceptable terms. We may also become subject to liability for pollution or other hazards which may not be insured against or which we may elect not to insure against because of premium costs or other reasons. Losses from these events may cause us to incur significant costs that could have a material adverse effect upon our financial performance, results of operations and business outlook.

**Litigation and regulatory proceedings**

We may be subject to civil claims (including class action claims) based on allegations of negligence, breach of statutory duty, public nuisance or private nuisance or otherwise in connection with our operations, or investigations relating thereto. While we are presently unable to quantify any potential liability under any of the above heads of damage, such liability may be material to us and may materially adversely affect our ability to continue operations. In addition, we may be subject to actions or related investigations by governmental or regulatory authorities in connection with our business activities, including, but not limited to, current and historic activities at our mineral properties. Such actions may include prosecution for breach of relevant legislation or failure to comply with the terms of our licenses and permits and may result in liability for pollution, other fines or penalties, revocations of consents, permits, approvals or licenses or similar actions, which could be material and may impact the results of our operations. Our current insurance coverage may not be adequate to cover any or all the potential losses, liabilities and damages that could result from the civil and/or regulatory actions referred to above.

*Page 106*

**Future Acquisitions and Dispositions**

As part of our business strategy, we have sought and may continue to seek new mining and exploration opportunities in the mining industry and may dispose of certain of our properties in the future. In pursuit of acquisition opportunities, we may fail to select appropriate acquisition targets or negotiate acceptable arrangements, including arrangements to finance acquisitions or integrate the acquired businesses into us. Ultimately, any acquisitions would be accompanied by risks, which could include:

· a significant change in commodity prices after we have committed to complete the transaction and established the purchase price or exchange ratio;

· a material ore body could prove to be below expectations;

· difficulty in integrating and assimilating the operations and workforce of any acquired companies;

· realizing anticipated synergies and maximizing the financial and strategic position of the combined enterprise;

· the bankruptcy of parties with whom we have arrangements;

· maintaining uniform standards, policies and controls across the organization;

· disruption of our ongoing business and its relationships with employees, suppliers, contractors and other stakeholders as we integrate the acquired business or assets;

· the acquired business or assets may have unknown liabilities which may be significant;

· delays as a result of regulatory approvals; and

· exposure to litigation (including actions commenced by shareholders) in connection with the transaction.

Any material issues that we encounter in connection with an acquisition could have a material adverse effect on our business, results of operations and financial position. In addition, when negotiating disposition arrangements we may be required to provide a potential purchaser with contractual indemnities which could lead to potential liability and have a material adverse impact on our financial performance, cash flow and results of operations.

**Joint ventures**

Our business plan anticipates that we may retain interest in properties which we have transferred in whole or in part to other parties who may choose to establish mining operations, and that interest may be in the form of a joint venture or earn-in arrangement, such as the Pickle Crow Earn-In Agreement entered into in relation to the Pickle Crow Project and the Hope Brook Earn-In Agreement entered into in relation to the Hope Brook Project. The existence or occurrence of one or more of the following circumstances and events could have a material adverse impact on our profitability or the viability of our interests that may be held through joint venture arrangements, including the Pickle Crow Project and Hope Brook Project, which could have a material adverse impact on our future cash flows, earnings, results of operations and financial condition:

· disagreements with joint venture partners on how to develop and operate mines efficiently;

· inability to exert influence over certain strategic decisions made in respect of joint venture properties;

· inability of joint venture partners to meet their obligations to the joint venture or third parties; and

· litigation between joint venture partners regarding joint venture matters.

*Page 107*

We are not to be the operator of the Pickle Crow Project or the Hope Brook Property and therefore the success of any operations will be dependent on our joint venture partner (who will act as operator). We are subject to the decisions made by the operator in the operation of the Pickle Crow Project and the Hope Brook Property and we will have to rely on the operator for accurate information about the project. Failure by the operator to prudently manage the operations of the Pickle Crow Project could have a material adverse effect on our business, results of operations and financial position. In addition, in the future, we may become responsible for funding our pro rata share of expenditures at the Pickle Crow Project, in the event we do not fund these expenditures, our interest in the Pickle Crow Project will be diluted which could have a material adverse effect on our business, results of operations and financial position.

**Future Sales of Shares**

Sales of a substantial number of our shares in the public market could occur at any time following, or in connection with, the completion of any offering. These sales, or the market perception that the holders of a large number of our shareholders intend to sell our shares, could reduce the market price of our shares. A decline in the market price of the shares could impair our ability to raise additional capital through the sale of securities should we desire to do so.

The issuance of shares to shareholders whose investment profile may not be consistent with our business may lead to significant sales of our shares or a perception that such sales may occur, either of which could have a material adverse effect on the market for and market price of our shares. We are unable to predict the effect that sales may have on the then prevailing market price of our shares.

**Reputation Loss**

Reputation loss may result in decreased investor confidence, increased challenges in developing and maintaining community relations and an impediment to our overall ability to advance our projects, thereby having a material adverse impact on our financial performance, financial condition and growth prospects. Damage to our reputation can be the result of the actual or perceived occurrence of any number of events, and could include any negative publicity (for example, with respect to our handling of environmental matters or our dealings with community groups), whether true or not. The increased usage of social media and other web-based tools used to generate, publish and discuss user-generated content and to connect with other users has made it increasingly easier for individuals and groups to communicate and share opinions and views in regards to us and our activities, whether true or not. We do not ultimately have direct control over how we are perceived by others and reputational loss could have a material adverse impact on our financial performance, financial condition and growth prospects.

**Equity Price Risk**

The Company is exposed to equity price risk as a result of holding investments in equity securities of several other mineral property related companies.

*Page 108*

**Interest Rate Risk**

Interest rate risk is the risk that future cash flows will fluctuate as a result of changes in market interest rates. The Company does not have any borrowings that are subject to fluctuations in market interest rates. Accordingly, the Company's interest rate risk is limited to potential decreases on the interest rate offered on cash and cash equivalents held with chartered Canadian financial institutions.

**Commodity Price Risk**

The Company is subject to commodity price risk from fluctuations in the market prices for gold and silver. Commodity price risks are affected by many factors that are outside the Company's control including global or regional consumption patterns, the supply of and demand for metals, speculative activities, the availability and costs of metal substitutes, inflation, and political and economic conditions. The changes in commodity prices could have a material adverse effect on the business, operations and financial condition of the Company.

**Credit Risk**

Credit risk is the risk of financial loss to the Company if a counterparty to a financial instrument fails to meet its contractual obligations. Financial instruments which are potentially subject to credit risk for the Company consist primarily of cash and cash equivalents, accounts and other receivables, and the reclamation deposit. The Company seeks to manage credit risk with respect to its cash and cash equivalents by holding its cash and cash equivalents through high credit quality major Canadian financial institutions as determined by rating agencies.

**Liquidity Risk**

Liquidity risk is the risk that the Company will not be able to meet its financial obligations as they become due. The Company's policy is to ensure that it will have sufficient cash to allow it to meet its liabilities when they become due, under both normal and stressed conditions, without incurring unacceptable losses or risking damage to the Company's reputation. The Company manages its liquidity risk by preparing annual estimates of exploration and administrative expenditures and monitoring actual expenditures compared to the estimates to endeavour to ensure that there is sufficient capital on hand to meet ongoing obligations.

**Capital Risk Management**

The Company's objectives when managing capital are to safeguard the Company's ability to continue as a going concern in order to pursue the exploration and retention of its mineral properties. The Company has historically demonstrated the ability to raise new capital through equity issuances and/or through surplus cash as part of its acquisitions. In the management of capital, the Company includes the components of shareholders' equity as well as cash. The Company prepares annual estimates of exploration and administrative expenditures and monitors actual expenditures compared to the estimates of ensure that there is sufficient capital on hand to meet ongoing obligations.

*Page 109*

**Financing Risks**

The Company has finite financial resources, has no current source of operating cash flow and has no assurance that additional funding will be available to it for its future activities, including exploration or development of mineral projects. Such further activities may be dependent upon the Company's ability to obtain financing through equity or debt financing or other means. Global financial markets, and the economy in general, are continuing to experience extreme volatility which may impact our ability to obtain financing. Failure to obtain additional financing could result in delay or indefinite postponement of exploration and development of the Company's existing mineral projects and could result in the loss of one or more of its properties.

**Legal proceedings**

There are no material legal proceedings which we are or were a party to or to which our properties are or were subject, either during the financial year ended December 31, 2022 or as of the date of this AIF, nor are we aware that any material proceedings are contemplated.

During the financial year ended December 31, 2022, and as of the date of this AIF, we have not had any penalties or sanctions imposed by a court relating to securities legislation or by a securities regulatory authority, or by a court or regulatory body. We have also never been involved in a settlement agreement before a court relating to securities legislation or with a securities regulatory authority.

**Information Security**

We have become increasingly dependent upon the development and maintenance of information technology systems that support the general operation of our business. Exposure of our information technology infrastructure to external threats poses a risk to the security of these systems. Such cyber security threats include unauthorized access to information technology systems due to hacking, viruses and other deliberate or inadvertent causes that can result in service disruptions, system failures and the disclosure of confidential business information. Any such information security risks may be increased given the increased remote access to our information and technology systems caused by the COVID-19 pandemic, which may continue on a go forward basis.

The Company applies risk management controls in line with industry accepted standards to protect our information assets and systems; however, these controls may not adequately protect against cyber security breaches. There is no assurance that we will not suffer losses associated with cyber security breaches in the future, including with respect to negative effects on our operational performance, the incurrence of regulatory penalties, reputational damage and costs required to investigate, mitigate and remediate any potential vulnerabilities.

**Internal Controls**

Effective internal controls are necessary for the Company to provide reliable financial reports and to help prevent fraud. Although we undertake a number of procedures in order to help ensure the reliability of our financial reports, including those imposed on us under Canadian and United States securities laws, we cannot be certain that such measures will ensure that the Company will maintain adequate control over financial processes and reporting. Failure to implement required new or improved controls, or difficulties encountered in their implementation, could impact the Company's results of operations or cause it to fail to meet its reporting obligations. If the Company or its independent auditors discover a material weakness, the disclosure of that fact, even if quickly remedied, could reduce the market's confidence in the Company's financial statements and reduce the trading price of the common shares.

*Page 110*

**Investor information**

**Share capital**

Our authorized share capital consists of:

· an unlimited number of common shares; and

· an unlimited number of preferred shares, issuable in series.

**Common shares**

We can issue an unlimited number of common shares with no nominal or par value. As of December 31, 2022 we had 802,226,149 common shares outstanding and as of the date of this AIF we had 807,658,020 common shares outstanding. All of our outstanding common shares are fully paid and non-assessable.

The following is a summary of the principal attributes of our common shares:

**Voting rights**

Holders of our common shares are entitled to vote on all matters that are to be voted on at any shareholder meeting, other than meetings that are only for holders of another class or series of shares. Each common share you own represents one vote. There are no cumulative voting rights, and directors do not stand for re-election at staggered intervals.

**Dividends**

Holders of our common shares are entitled to share *pro rata* in any profits of First Mining to the extent that such profits are distributed either through the declaration of dividends by our Board or otherwise distributed to shareholders. There are no indentures or agreements limiting the payment of dividends. The Company has not paid any dividends since incorporation and it has no plans to pay dividends for the foreseeable future.

**Rights on dissolution**

In the event of the liquidation, dissolution or winding up of First Mining, the holders of our common shares will be entitled to receive, on a *pro rata* basis, all of our assets remaining after payment of all of our liabilities.

**Pre-emptive, conversion and other rights**

Holders of our common shares have no pre-emptive, redemption, purchase or conversion rights attaching to their shares, and our common shares, when fully paid, will not be liable to further call or assessment. No other class of shares may be created without the approval of the holders of our common shares. There are no provisions discriminating against any existing or prospective holder of our common shares as a result of such shareholder owning a substantial number of common shares. In addition, non-residents of Canada who hold our common shares have the same rights as shareholders who are residents of Canada.

*Page 111*

**Preferred shares**

We can issue an unlimited number of preferred shares with no nominal or par value. As of the date of this AIF, we did not have any preferred shares outstanding.

The preferred shares are issuable in series. The preferred shares of each series rank in parity with the preferred shares of every other series with respect to dividends and return of capital and are entitled to a preference over the common shares and any other shares ranking junior to the preferred shares with respect to priority in the payment of dividends and the distribution of assets in the event of the liquidation, dissolution or winding-up of First Mining.

Our Board is empowered to fix the number of shares and the rights to be attached to the preferred shares of each series, including the amount of dividends and any conversion, voting and redemption rights. Subject to our articles of incorporation and to applicable law, the preferred shares as a class are not entitled to receive notice of or attend or vote at meetings of the Company's shareholders.

**Security-based compensation and convertible securities**

**Security-based compensation**

Our Board amended and restated the Company's share-based compensation plan (the "**Amended and Restated Share-Based Compensation Plan**") on April 29, 2022, and the unallocated entitlements under the plan were most recently approved by the Company's shareholders on June 9, 2022. The maximum number of common shares issuable under the Amended and Restated Share-Based Compensation Plan, together with the number of common shares issuable under any other security-based compensation arrangement of the Company, shall not in the aggregate exceed 10% of our issued and outstanding common shares.

The Amended and Restricted Share-Based Compensation Plan allows for the issuance of up to 10% of our issued and outstanding common shares as incentive share options ("**Options**"), bonus shares, restricted share units ("**RSUs**"), performance share units ("**PSUs**") and deferred share units ("**DSUs**") to our directors, officers, employees and consultants.

For a full description of the Amended and Restated Share-Based Compensation Plan, see Appendix A of our management information circular dated April 29, 2022, a copy of which can be found under our SEDAR profile at <u>www.sedar.com</u><u>.</u>

As of December 31, 2022 there were 46,372,500 Options outstanding, with exercise prices ranging from $0.205 to $0.950 and expiry dates ranging from January 15, 2023 to December 7, 2027. As of the date of this AIF there were 57,167,500 Options outstanding, with exercise prices ranging from $0.19 to $0.50 and expiry dates ranging from April 1, 2023 to February 14, 2028.

As of December 31, 2022 and as of the date of this AIF, there were 1,890,002 and 3,837,047 RSUs outstanding, respectively.

As of December 31, 2022 and as of the date of this AIF, there were 1,913,000 and 6,813,000 PSUs outstanding, respectively.

*Page 112*

As of December 31, 2022 and as of the date of this AIF, there were 659,000 and 1,109,000 DSUs outstanding, respectively.

As of December 31, 2022, there were 50,347,237 share purchase warrants outstanding to acquire First Mining Shares at exercise prices ranging from $0.31 to $0.42, and with expiry dates ranging from February 14, 2023 to July 2, 2025. As of the date of this AIF, there were 32,100,228 share purchase warrants outstanding.

**Escrowed securities**

As at December 31, 2022, no First Mining Shares were subject to a contractual restriction on transfer and the following First Mining Shares, held by a vendor of a property the Company had acquired in February 2022, were held in escrow pursuant to the terms of an escrow agreement:

---

| | |
|:---|:---|
| **Designation of Class** | **Percentage of Class** |
| Common Shares<br>2000000<sup>(1)</sup> | 0.25% |

---

<u>Notes:</u>

(1) In February 2023, pursuant to the terms of the escrow agreement, 1,500,000 First Mining Shares were released to the vendor from escrow. Accordingly, as of the date of this AIF, 500,000 First Mining Shares remain in escrow, and will be released from escrow on the earlier of January 31, 2026 and the date a joint written direction is provided to the escrow agent by the parties to the escrow agreement.

Material contracts

With the exception of contracts made in the ordinary course of business, as of the date of this AIF, we have no material contracts other than the following:

**Hope Brook Earn-In Agreement**

On April 5, 2021, we entered into the Hope Brook Earn-In Agreement with Big Ridge pursuant to which Big Ridge may earn up to an 80% interest in the Hope Brook Project through a two-stage earn-in over five years. As upfront consideration, we received $500,000 cash and 11,500,000 common shares of Big Ridge ("**Big Ridge Shares**") upon closing in June 2021.

The key terms of the Hope Brook Earn-In Agreement are as follows:

*<u>Stage 1 Earn-In (51% earn-in)</u>*

Up Until June 8, 2024 (the third anniversary of the closing date), Big Ridge can acquire a 51% interest in the Hope Brook Project and form a joint venture with First Mining by:

· incurring $10 million in qualifying expenditures on the Hope Brook Project;

· issuing an additional 15 million Big Ridge Shares to First Mining; and

· granting to First Mining a 1.5% NSR royalty on the Hope Brook Project (Big Ridge can buy-back 0.5% of the NSR royalty for $2 million).

*Page 113*

Big Ridge satisfied the Stage 1 Earn-In conditions on September 13, 2022 and accordingly now owns 51% of the Hope Brook Project.

*<u>Stage 2 Earn-In (additional 29% to earn-in to 80%)</u>*

Following completion of the Stage 1 Earn-In, and up until June 8, 2026 (the fifth anniversary of the closing date), Big Ridge can increase its ownership interest in Hope Brook to 80% by:

· incurring an additional $10 million in qualifying expenditures on the Hope Brook Project; and

· issuing to First Mining the lesser of: (i) 10 million Big Ridge Shares; and (ii) such number of Big Ridge Shares that would result in First Mining owning 19.9% of the issued and outstanding Big Ridge Shares (post-issuance).

*<u>Additional Terms</u>*

· For so long as we own at least 10% of the issued and outstanding Big Ridge Shares:

(i) we are entitled to have one nominee elected or appointed to Big Ridge's board of directors;

(ii) we have the right to participate in any equity financings undertaken by Big Ridge so as to maintain our percentage ownership of Big Ridge; and

(iii) we have agreed to certain resale restrictions on any Big Ridges Shares issued to us under the Hope Brook Agreement pursuant to which we are required to first notify Big Ridge of our intent to sell, after which Big Ridge shall have ten business days to arrange the sale of the Big Ridge Shares that we wish to sell as a block to one purchaser (if they cannot arrange this within that time period, we will have 60 days within which to sell in pre-arranged blocks of any size and at any price; for on-market sales, we have agreed to limit daily sales to 10% of the 10-day trailing average of Canadian consolidated trading volumes for Big Ridge Shares).

· We are free carried until Big Ridge announces the results of a feasibility study for the Hope Brook Project, after which we will be responsible for our pro rata share of expenditures in accordance with the percentage of our joint venture interest at that time.

· Upon the commencement of commercial production at the Hope Brook Project, Big Ridge will pay us $2 million cash.

· The joint venture entity that is formed will be required to pay us a royalty of US$1 per tonne of aggregate material sold from the Hope Brook Project pursuant to the terms of a royalty agreement, the form of which was agreed to with Big Ridge at closing and that will be entered into between us and the joint venture entity prior to the sale of any aggregate material from the Hope Brook Project.

· Big Ridge has a right of first refusal with respect to any retained project interest that First Mining wishes to sell, and a "tag-along" right for First Mining in the event Big Ridge wishes to sell its interest in the Hope Brook Project to a third party (this right does not apply in the context of a merger, takeover bid, amalgamation or any other change of control transaction of Big Ridge)

*Page 114*

Pickle Crow Earn-In Agreement

On March 12, 2020, we entered into the Pickle Crow Earn-In Agreement with Auteco pursuant to which Auteco may earn up to an 80% interest in PC Gold, a wholly-owned subsidiary of First Mining that owns the Pickle Crow Project. As of December 31, 2022 and as of the date of this AIF, Auteco had satisfied the Stage 1 and Stage 2 earn-in conditions and has accordingly acquired a 70% interest in PC Gold. During the term of the Pickle Crow Earn-In Agreement, Auteco will be the operator of the Pickle Crow Project and will be responsible for all project expenditures.

As upfront consideration, we received $50,000 cash in January 2020 (as consideration for entering into a term sheet as a precursor to the definitive agreement), and we received $50,000 in cash concurrently with the execution of the Pickle Crow Earn-In Agreement. In addition, First Mining received 25,000,000 shares of Auteco ("**Auteco Shares**") in connection with the execution of the Pickle Crow Earn-In Agreement.

The key terms of the Pickle Crow Earn-In Agreement are as follows:

*<u>Stage 1 Earn-In (51% earn-in)</u>*

Three-year initial earn-in period for Auteco to acquire a 51% interest in PC Gold (and thereby a 51% interest in the Pickle Crow Project) by:

· incurring $5 million of exploration and environmental expenditures on the Pickle Crow Project, of which $750,000 in exploration expenditures must be incurred within the first 12 months; and

· issuing an additional 100,000,000 Auteco Shares to First Mining (the "**Stage 1 Earn-In Shares** ").

Auteco satisfied the Stage 1 Earn-In conditions on June 4, 2021.

*<u>Stage 2 Earn-In (additional 19% to earn-in to 70%)</u>*

Upon completion of the Stage 1 Earn-In, Auteco had a two-year follow-on period to acquire an additional 19% interest in PC Gold (and thereby an additional 19% interest in the Pickle Crow Project), by:

· incurring a further $5 million of exploration expenditures on the Pickle Crow Project;

· paying First Mining $1 million in cash payment within 90 days of incurring the above-mentioned additional exploration expenditures; and

· granting First Mining a 2% NSR royalty on the Pickle Crow Project (1% of which can be bought back by Auteco for US$2.5 million).

Auteco satisfied the Stage 2 earn-in conditions on August 26, 2021.

*Page 115*

*<u>Buy-In (additional 10% to earn-in to 80%)</u>*

With the Stage 2 Earn-In having been completed, Auteco now has an option to acquire an additional 10% of PC Gold (and thereby an additional 10% interest in the Pickle Crow Project), exercisable at any time after completion of the Stage 2 Earn-In, by paying First Mining $3 million in cash (the "**Buy-In**"). In the event Auteco provides notice that it does not wish to proceed with the Buy-in, the Pickle Crow Earn-In Agreement will terminate and Auteco will retain its 70% interest in the property.

*<u>Joint Venture Shareholders Agreement</u>*

The Pickle Crow Earn-In Agreement provides that upon completion of the Stage 1 Earn-in, First Mining and Auteco (through a wholly-owned subsidiary) will execute a joint venture shareholders' agreement with respect to PC Gold (at which point PC Gold will become a joint venture company). First Mining and Auteco entered into a joint venture shareholders' agreement (the "**Joint Venture Shareholders Agreement**") with respect to PC Gold on June 4, 2021.

In accordance with the terms of the Pickle Crow Earn-In Agreement, the Joint Venture Shareholders Agreement provides that, until the Pickle Crow Earn-In Agreement is terminated or a decision to mine is made, Auteco will fund all exploration expenditures. Following this, each of First Mining and Auteco must fund expenditures pro rata in accordance with their respective interests or be diluted pursuant to a customary dilution formula. If a party's interest is diluted below 5%, the other party will have the right to acquire such party's interest at the fair market value (as determined in accordance with the Joint Venture Shareholders Agreement).

Currently First Mining is entitled to nominate two directors to the five-person board of PC Gold. The Joint Venture Shareholders Agreement provides that certain decisions must be made by shareholders with different approval thresholds (80%, 85% and unanimous respectively) for different matters.

The Joint Venture Shareholders Agreement also contains customary provisions, such as restrictions on the transfer of the interest of a party, a right of first refusal in favour of each party and tag-along and drag-along provisions.

A copy of the Pickle Crow Earn-In Agreement (which includes the Joint Venture Shareholders Agreement as a schedule) is available under our SEDAR profile at <u>www.sedar.com</u>.

**Silver Stream Agreement**

On June 10, 2020, First Mining and its wholly-owned subsidiary, Gold Canyon, entered into the Silver Stream Agreement with First Majestic pursuant to which First Majestic agreed to purchase 50% of the payable silver produced from Springpole for the life of the project.

*Page 116*

The key terms of the Silver Stream Agreement are as follows:

*<u>Consideration Details</u>*

· In return for its share of payable silver produced from the Springpole Project once production has commenced, First Majestic will make ongoing cash payments to First Mining equal to 33% of the lesser of the average spot price of silver for the applicable calendar quarter, and the spot price of silver at the time of delivery, subject to a price cap of US$7.50 per ounce of silver (the "**Price Cap** "). The Price Cap is subject to annual inflation escalation of 2%, commencing at the start of the third year of commercial production at Springpole.

· First Majestic agreed to pay US$10,000,000 to First Mining upon closing of transaction, with US$2,500,000 of this amount payable in cash, and the remaining US$7,500,000 payable in First Majestic Shares based on the volume-weighted average trading price ()"**VWAP**") of the First Majestic Shares on the TSX for the 20 trading days up to the day immediately prior to the closing date. These cash and share payments were made to First Mining when the Silver Stream transaction closed on June 10, 2020.

· First Majestic agreed to pay First Mining an additional US$7,500,000 within five business days of a public announcement by First Mining of the completion of a positive PFS for Springpole, with US$3,750,000 of this amount payable in cash, and the remaining US$3,750,000 payable in First Majestic Shares (based on the 20-day VWAP of First Majestic Shares as of the date of First Mining's public announcement). These cash and share payments were made to First Mining five business days after the Company's news release in January 2021 announcing the positive results of a PFS for the Springpole Project.

· First Majestic will pay a final amount of US$5,000,000 to First Mining upon the Company receiving approval of either a federal or provincial Environmental Assessment for Springpole, with US$2,500,000 million of this amount payable in cash, and the remaining US$2,500,000 million payable in First Majestic Shares (based on the 20-day VWAP of First Majestic Shares as of the date of such approval).

*<u>Other Transaction Terms</u>*

· First Mining agreed to issue 30 million Warrants to First Majestic on the closing date of the Silver Stream Transaction, with each Warrant entitling First Majestic to purchase one common share of First Mining at an exercise price of $0.40 for a period of five years. These warrants were issued to First Majestic when the Silver Stream transaction closed on June 10, 2020. The Treasury Metals Distribution resulted in the adjustment provisions for these Warrants being triggered, and as a result, the exercise price of these Warrants was reduced to $0.374 and an additional 2,050,228 Warrants with a $0.374 exercise price were issued to First Majestic. As a result, First Majestic now holds a total of 32,050,228 Warrants at an exercise price of $0.374 which expire on July 2, 2025.

· We have the right to repurchase 50% of the Silver Stream by paying US$22,500,000 to First Majestic at any time prior to the commencement of commercial production at Springpole.

· We have granted a right of first refusal to First Majestic with respect to any future silver stream financings for Springpole.

· First Mining and First Majestic agreed to form a three-member technical committee (the "**Technical Committee**") comprised of two members from First Mining and one member from First Majestic. The Technical Committee will advise First Mining on metallurgical testing, process flow sheet development and through the completion of the PFS and Feasibility studies for Springpole. This Technical Committee was established following the closing of the Silver Stream transaction on June 10, 2020.

*Page 117*

**Market for our securities**

Our common shares are listed and traded on the TSX under the symbol "FF", on the OTC-QX under the symbol "FFMGF", and on the Frankfurt Stock Exchange under the symbol "FMG".

We have a registrar and transfer agent for our common shares:

Computershare Investor Services Inc.

510 Burrard Street, 2<sup>nd</sup> Floor

Vancouver, British Columbia V6C 3B9.

**Prior sales**

During our most recently completed financial year we issued the following securities which are not listed or quoted on a marketplace:

**Stock Options**

---

| | | | |
|:---|:---|:---|:---|
| **Date of Issuance** | **Number of Stock Options Issued** | **Exercise Price ($)** | **Expiry Date** |
|  January 5, 2022 | 160000 <sup>(1)</sup> | 0.315 | January 5, 2027 |
|  January 11, 2022 | 120000 <sup>(2)</sup> | 0.300 | January 11, 2027 |
|  February 3, 2022 | 12070000 <sup>(3)</sup> | 0.265 | February 3, 2027 |
|  February 13, 2022 | 1485000 <sup>(4)</sup> | 0.280 | February 13, 2027 |
|  March 29, 2022 | 1000000 <sup>(5)</sup> | 0.275 | March 29, 2027 |
|  September 16, 2022 | 500000 <sup>(6)</sup> | 0.215 | September 16, 2027 |
|  December 7, 2022 | 675000 <sup>(7)</sup> | 0.205 | December 7, 2027 |
|  **TOTAL** | **16010000** |  |  |

---

---

| | |
|:---|:---|
| <u>Notes:</u> |  |
| (1) | Issued to a new employee of First Mining. |
| (2) | Issued to a new employee of First Mining. |
| (3) | Issued to directors, officers, employees and consultants of First Mining. |
| (4) | Issued to certain directors, officers and employees of First Mining. |
| (5) | Issued to a new officer of First Mining. |
| (6) | Issued to a new officer of First Mining. |
| (7) | Issued to new employees of First Mining. |

---

*Page 118*

**Restricted Share Units**

---

| |
|:---|
| **Date of Issuance** |
| February 3, 2022<br>1090000 <sup>(1)</sup> |

---

<u>Notes:</u> <br>(1) Issued to officers of First Mining.

**Performance Share Units**

---

| |
|:---|
| **Date of Issuance** |
| December 16, 2022<br>1913000 <sup>(1)</sup> |

---

Notes: <br>(1) Issued to certain officers and employees of First Mining.

**Deferred Share Units**

---

| |
|:---|
| **Date of Issuance** |
| February 11, 2022<br>356000 <sup>(1)</sup> |

---

Notes: <br>(1) Issued to two directors of First Mining.

*Page 119*

**Trading activity**

The table below shows the high and low closing prices and trading volumes of our common shares on the TSX for each month of our most recently completed financial year.

---

| | | | |
|:---|:---|:---|:---|
| **2022** | **High ($)** | **Low ($)** | **Volume** |
| January | 0.315 | 0.270 | 8235515 |
| February | 0.295 | 0.265 | 5243025 |
| March | 0.315 | 0.275 | 9504071 |
| April | 0.295 | 0.255 | 10519154 |
| May | 0.255 | 0.205 | 8131977 |
| June | 0.260 | 0.210 | 5706858 |
| July | 0.250 | 0.205 | 5214285 |
| August | 0.245 | 0.220 | 5274673 |
| September | 0.220 | 0.200 | 7976088 |
| October | 0.220 | 0.195 | 6248336 |
| November | 0.210 | 0.195 | 7423725 |
| December | 0.220 | 0.200 | 7277330 |
| **TOTAL** | **TOTAL** | **TOTAL** | **86755037** |

---

![](firstmining_ex991img44.jpg)

*Page 120*

**Our team**

**Directors**

All our directors are elected for a one-year term, and hold office until our next annual shareholder meeting, unless he or she resigns before that time or steps down, as required by corporate law. The information below as to principal occupation and shares beneficially owned has been furnished by the respective individuals. The directors of First Mining as of the date of this AIF are as follows:

---

| | | |
|:---|:---|:---|
| **Director** | &nbsp;&nbsp;&nbsp;&nbsp; **Board committees** | &nbsp;&nbsp;&nbsp;&nbsp; **Principal occupation or employment for past five years** |
| &nbsp;&nbsp;&nbsp;&nbsp; <br> ![](firstmining_ex991img47.jpg)<br> **Keith Neumeyer** <br> Zug, Switzerland<br>Chairman since<br> March 30, 2015<br>| &nbsp;&nbsp;&nbsp;&nbsp; <br> Audit Committee<br>Compensation Committee (Chair)<br>Corporate Governance &<br> Nominating Committee<br>| &nbsp;&nbsp;&nbsp;&nbsp; <br> Director and Chairman of First Mining since March 30, 2015 (founder of the Company)<br>November 2001 to present – Founder, President and Chief Executive Officer, First Majestic Silver Corp. (mining company)<br>December 1998 to present – Director, First Majestic Silver Corp. (mining company)<br>|
| &nbsp;&nbsp;&nbsp;&nbsp; *Ownership of Securities:*  | &nbsp;&nbsp;&nbsp;&nbsp; *17,905,313 shares* <br>*569,500 DSUs*<br>| &nbsp;&nbsp;&nbsp;&nbsp; <br> *3,037,500 options* |
| **Director** | &nbsp;&nbsp;&nbsp;&nbsp; **Board committees** | &nbsp;&nbsp;&nbsp;&nbsp; **Principal occupation or employment for past five years** |
| &nbsp;&nbsp;&nbsp;&nbsp; ![](firstmining_ex991img46.jpg)<br>**Leanne Hall**<br> Ontario, Canada<br>Director since<br> October 30, 2020 | &nbsp;&nbsp;&nbsp;&nbsp; <br> Compensation Committee | &nbsp;&nbsp;&nbsp;&nbsp; <br> Director of First Mining since October 30, 2020<br>December 2019 to present – Chief Executive Officer of Creative Fire (100% owned Indigenous strategy, engagement, research and data analytics firm)<br>August 2019 to present – Vice President of Des Nedhe Development Corporation (Indigenous economic development corporation)<br>February 2016 to August 2019 – Partner and National Leader of Indigenous practice group at Deloitte Canada (professional services firm) |
| *Ownership of Securities:* | &nbsp;&nbsp;&nbsp;&nbsp; *NIL shares* <br>*40,000 DSUs* | &nbsp;&nbsp;&nbsp;&nbsp; *1,575,000 options* |

---

*Page 121*

---

| | | |
|:---|:---|:---|
| **Director** | &nbsp;&nbsp;&nbsp; **Board committees** | &nbsp;&nbsp;&nbsp; <br> **Principal occupation or employment for past five years**<br>|
| &nbsp;&nbsp;&nbsp; <br> ![](firstmining_ex991img51.jpg)<br> **Richard Lock**<br> Utah, U.S.A.<br>Director since<br> April 1, 2020<br>| &nbsp;&nbsp;&nbsp; <br> Audit Committee<br>Compensation Committee<br>Corporate Governance &<br> Nominating Committee (Chair) | &nbsp;&nbsp;&nbsp;&nbsp; <br> Director of First Mining since April 1, 2020<br>April 2022 to present - Chief Executive Officer and a Director of Oroco Resource Corp. (mining company)<br>January 2020 to April 2022 - Senior Vice President and Project Director (NorthMet Project) of Poly Met Mining, Inc., a wholly-owned subsidiary of PolyMet Mining Corp. (mining company)<br>March 2019 to October 2019 - Construction Director of the Peschanka open pit copper mine owned by KAZ Minerals Projects BV (mining company)<br>September 2018 to December 2019 - Senior Vice President of Arizona Mining Inc. (mining company)<br>|
| &nbsp;&nbsp;&nbsp; *Ownership of Securities:* | &nbsp;&nbsp;&nbsp; *255,553 shares*<br>*NIL DSUs* | &nbsp;&nbsp;&nbsp;&nbsp; *1,650,000 options* |
| **Director** | &nbsp;&nbsp;&nbsp; **Board committees** | &nbsp;&nbsp;&nbsp; <br> **Principal occupation or employment for past five years**<br>|
| &nbsp;&nbsp;&nbsp; <br> ![](firstmining_ex991img52.jpg)<br> **Raymond L. Polman, CPA, CA**<br> British Columbia, Canada<br>Director since<br> March 30, 2015<br>| &nbsp;&nbsp;&nbsp; <br> Audit Committee<br> &nbsp;&nbsp;&nbsp;&nbsp;(Chair)<br>Corporate Governance & Nominating Committee<br>| &nbsp;&nbsp;&nbsp;&nbsp; <br> Director of First Mining since March 30, 2015<br>May 2022 to present - Director of First Majestic Silver Corp. (mining company)<br>February 2007 to December 2021 - Chief Financial Officer of First Majestic Silver Corp. (mining company)<br>|
| &nbsp;&nbsp;&nbsp; *Ownership of Securities:*  | &nbsp;&nbsp;&nbsp; *650,333 shares* <br>*499,500 DSUs*<br>| &nbsp;&nbsp;&nbsp;&nbsp; *2,787,500 options* |

---

*Page 122*

---

| | | |
|:---|:---|:---|
| **Director** | &nbsp;&nbsp;&nbsp; **Board committees** | &nbsp;&nbsp;&nbsp; <br> **Principal occupation or employment for past five years**<br>|
| &nbsp;&nbsp; <br> ![](firstmining_ex991img53.jpg) <br> **Daniel W. Wilton**<br> British Columbia, Canada<br>Director since<br> January 7, 2019<br>|  | &nbsp;&nbsp;&nbsp;&nbsp; <br> Chief Executive Officer and a Director of First Mining since January 7, 2019<br>December 2018 to present - Director of South Star Mining Corp. (mining company)<br>September 2021 to present - Director of Providence Living (non-profit residential care provider)<br>August 2020 to June 2022 - Director of Treasury Metals Inc. (mining company)<br>September 2010 to June 2021 - Director and Vice Chair of Providence Health Care (non-profit health care provider)<br>February 2013 to April 2018 - Partner of Pacific Road Capital Management Pty Ltd. (global private equity investment firm) |
| *Ownership of Securities:* | &nbsp;&nbsp;&nbsp; *6,166,666 shares* <br> *1,779,168 RSUs*  | &nbsp;&nbsp;&nbsp;&nbsp; *7,750,000 options*<br> *1,606,000 PSUs* |

---

*Page 123*

**Officers**

Our officers are appointed by our board of directors. The information below as to principal occupation and shares beneficially owned has been furnished by the respective individuals. The officers of our Company as of the date of this AIF are as follows:

---

| | |
|:---|:---|
| &nbsp;&nbsp; **Officer** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br> **Principal occupation or employment for past five years**<br>|
| &nbsp;&nbsp;&nbsp; <br> ![](firstmining_ex991img54.jpg)<br>**Daniel W. Wilton**<br> *Chief Executive Officer*<br>British Columbia, Canada<br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br> Chief Executive Officer and a Director of First Mining since January 7, 2019<br>December 2018 to present - Director of South Star Mining Corp. (mining company)<br>September 2021 to present - Director of Providence Living (non-profit residential care provider)<br>August 2020 to June 2022 - Director of Treasury Metals Inc. (mining company)<br>September 2010 to June 2021 - Director and Vice Chair of Providence Health Care (non-profit health care provider)<br>February 2013 to April 2018 - Partner of Pacific Road Capital Management Pty Ltd. (global private equity investment firm) |
| *Ownership of Securities:* | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; *6,166,666 shares 7,750,000 options*<br> *1,779,168 RSUs 1,606,000 PSUs*<br>|

---

*Page 124*

---

| | |
|:---|:---|
| &nbsp;&nbsp; **Officer** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br> **Principal occupation or employment for past five years**<br>|
| &nbsp;&nbsp;&nbsp; <br> ![](firstmining_ex991img56.jpg)<br>**Jeffery Reinson**<br> *Chief Operating Officer*<br>Saskatchewan, Canada<br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br> Chief Operating Officer of First Mining since March 28, 2022<br>April 2020 to March 2022 - Project Management consultant advising on and reviewing greenfield and brownfield mine development projects and operations.<br>January 2021 to June 2021 - Interim General Manager of Greece Operations of Eldorado Gold Corporation (mining company)<br>January 2018 to March 2020 - Vice President, Project Development of Bluestone Resources Inc. (a mining company) |
| &nbsp;&nbsp;&nbsp; *Ownership of Securities:* | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; *NIL shares 1,850,000 options*<br>*804,545 RSUs 800,000 PSUs*<br>|
| &nbsp;&nbsp; **Officer** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br> **Principal occupation or employment for past five years**<br>|
| &nbsp;&nbsp;&nbsp;&nbsp; ![](firstmining_ex991img57.jpg)<br>**Lisa M. Peterson, CA**<br> *Chief Financial Officer*<br>British Columbia, Canada<br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br> Chief Financial Officer of First Mining since September 2022<br>July 2021 to September 2022 - Chief Financial Officer of Slater Corporate Services Corporation (private company providing professional services to various mining companies)<br>October 2018 to June 2021 - Vice President, Corporate Reporting of SkyPower Services ULC (renewable energy company)<br>May 2016 to June 2018 - Chief of Staff Capital Projects of Barrick Gold Corporation (mining company)<br>|
| &nbsp;&nbsp;&nbsp;&nbsp; *Ownership of Securities:* | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; *NIL shares 1,350,000 options*<br> *350,000 RSUs 800,000 PSUs* |

---

*Page 125*

---

| | |
|:---|:---|
| &nbsp;&nbsp; **Officer** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br> **Principal occupation or employment for past five years**<br>|
| &nbsp;&nbsp;&nbsp; <br> ![](firstmining_ex991img58.jpg)<br>**Samir Patel, LL.B. (Hons)**<br> *General Counsel &*<br> *Corporate Secretary*<br>British Columbia, Canada<br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br> General Counsel & Corporate Secretary of First Mining since January 2019<br>June 2016 to December 2018 - Corporate Counsel & Corporate Secretary of First Mining (promoted to General Counsel & Corporate Secretary in January 2019)<br>June 2020 to June 2022 - Director of Interra Copper Corp. (mining company)<br>|
| &nbsp;&nbsp;&nbsp; *Ownership of Securities:* | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; *470,000 shares 4,475,000 options*<br>*903,334 RSUs 1,197,000 PSUs* <br>|

---

To our knowledge, the total number of common shares that the directors and officers as a group either: (i) beneficially owned; or (ii) exercised direction or control over, directly or indirectly, as at the date of this AIF was 25,447,865 common shares. This represents approximately 3.2% of our outstanding common shares as at the date of this AIF (on an undiluted basis).

**Interest of management and others in material transactions**

To our knowledge, other than as disclosed herein, no director, executive officer or shareholder that either: (i) beneficially owns; or (ii) controls or directs, directly or indirectly, over 10% of any class of our outstanding securities, nor their associates or affiliates, have or have had within the three most recently completed financial years, any material interests, direct or indirect, in any transaction that has materially affected, or is reasonably expected to materially affect, our Company.

**Conflicts of interest**

Certain directors and officers will be engaged in, and will continue to engage in, other business activities on their own behalf and on behalf of other companies (including mineral companies) and, as a result of these and other activities, such directors and officers may become subject to conflicts of interest. The BCBCA provides that if a director has a material interest in a contract or proposed contract or agreement that is material to the issuer, the director must disclose his interest in such contract or agreement and must refrain from voting on any matter in respect of such contract or agreement, subject to and in accordance with the BCBCA. To the extent that conflicts of interest arise, such conflicts will be resolved in accordance with the provisions of the BCBCA and in accordance with our Code of Business Conduct and Ethics.

*Page 126*

**Other information about our directors and officers**

None of our directors or officers, or a shareholder holding a sufficient number of securities of First Mining to affect materially the control of our Company, is or was a director or executive officer of another company (including our Company) in the past 10 years that:

· was subject to a cease trade or similar order, or an order denying that company any exemption under securities legislation that was in effect for more than 30 consecutive days, while the director or executive officer held that role with the company;

· was involved in an event while the director or executive officer was acting in that capacity that resulted in the company being subject to one of the above orders after the director or executive officer no longer held that role with the company; or

· while acting in that capacity, or within a year of acting in that capacity, became bankrupt, made a proposal under any legislation relating to bankruptcy or insolvency or was subject to or instituted any proceedings, arrangement or compromise with creditors or had a receiver, receiver manager or trustee appointed to hold the assets of that company.

None of them in the past 10 years:

· became bankrupt;

· made a proposal under any legislation relating to bankruptcy or insolvency;

· has been subject to or launched any proceedings, arrangement or compromise with any creditors; or

· had a receiver, receiver manager or trustee appointed to hold any of their assets.

None of them has ever been subject to:

· penalties or sanctions imposed by a court relating to securities legislation or by a securities regulatory authority or has entered into a settlement agreement with a securities regulatory authority; or

· any other penalties or sanctions imposed by a court or regulatory body that would likely be considered important to a reasonable investor in making an investment decision.

*Page 127*

**Audit Committee information**

National Instrument 52-110 *Audit Committees* ("**NI 52-110**") requires us to have an audit committee (the "**Audit Committee**") comprised of not less than three directors all of whom are "independent" and "financially literate" (as such terms are defined in NI 52-110). NI 52-110 also requires us to disclose in this AIF certain information regarding the Audit Committee. That disclosure is set out below.

**Overview**

The Company's Audit Committee is principally responsible for:

· recommending to our Board the external auditor to be nominated for election by the shareholders at each annual general meeting and negotiating the compensation of such external auditor;

· overseeing the work of the external auditor;

· reviewing our annual and interim financial statements, MD&A and press releases regarding earnings before they are reviewed and approved by our Board and publicly disseminated; and

· reviewing our financial reporting procedures and internal controls to ensure adequate procedures are in place for our public disclosure of financial information extracted or derived from our financial statements.

**Committee charter**

A copy of the Audit Committee's charter is attached as Appendix "A" to this AIF.

**Composition of the Audit Committee**

Our current Audit Committee consists of Raymond Polman (current chairman of the Audit Committee), Keith Neumeyer and Richard Lock.

NI 52-110 provides that a member of an audit committee is "independent" if the member has no direct or indirect material relationship with the Company, which could, in the view of our Board, reasonably interfere with the exercise of the member's independent judgment. All of the members of our Audit Committee are "independent" within the meaning of NI 52-110.

NI 52-110 provides that an individual is "financially literate" if he or she has the ability to read and understand a set of financial statements that present a breadth and level of complexity of accounting issues that are generally comparable to the breadth and complexity of the issues that can reasonably be expected to be raised by the Company's financial statements. All of the members of our Audit Committee are "financially literate" as that term is defined in NI 52-110.

**Relevant education and experience**

The following is a description of the skills and experience of each member of the Audit Committee that is relevant to the performance of their responsibilities as a member of the Audit Committee:

<u>Raymond Polman *(Chairman of Audit Committee)*</u>

Mr. Polman has over 35 years of public accounting and corporate finance experience in the Canadian and US financial markets and was the Chief Financial Officer of First Majestic Silver Corp. from February 2007 to December 2021. Prior to First Majestic, Mr. Polman had been a Chief Financial Officer for six years with a number of publicly traded technology companies, prior to which he served several years as the Director of Finance for Rescan Environmental, a large privately-owned company serving the global mining community. Mr. Polman has a Bachelor of Science Degree from the University of Victoria and he is a member of the Institute of Chartered Accountants of British Columbia. Mr. Polman also began his public accounting experience with Deloitte LLP before venturing into private industry.

*Page 128*

<u>Keith Neumeyer</u>

Mr. Neumeyer has worked in the investment community for over 30 years. He began his career at a number of Canadian national brokerage firms. Mr. Neumeyer moved on to work with several publicly traded companies in the resource and high technology sectors. His roles have included senior management positions and directorships responsible in areas of finance, business development, strategic planning and corporate restructuring. Mr. Neumeyer was the original and founding President of First Quantum Minerals Ltd. He also founded and is currently the Chief Executive Officer of First Majestic Silver Corp., and he is the founder of First Mining. Mr. Neumeyer has also listed a number of companies on the Toronto Stock Exchange and as such has extensive experience dealing with the financial, regulatory, legal and accounting issues that are relevant in the investment community.

<u>Richard Lock</u>

Mr. Lock is a veteran mining executive with more than 30 years of experience in project management, development and operations for major mining companies including Rio Tinto, Western Potash, DeBeers and Anglo American. Mr. Lock is currently the Chief Executive Officer and a Director of Oroco Resource Corp. His most recent prior roles include Senior Vice President and Project Director for the NorthMet mining project in Minnesota being developed by PolyMet Mining Corp., Construction Director for KAZ Minerals' Peschanka open pit copper mine in Russia and executive and project director roles at Arizona Mining's Hermosa Zinc Project in the United States. Mr. Lock has been involved with numerous projects including Yara International's Dallol potash project in Ethiopia, Western Potash's Milestone potash project in Canada, and several of Rio Tinto's projects including the Resolution and Keystone copper assets in the U.S. and the Diavik diamond mine in Canada's Northwest Territories. Mr. Lock holds a Bachelor of Science in Mining Engineering from Cardiff University in the United Kingdom.

**Audit Committee oversight**

At no time since the commencement of the Company's most recently completed financial year was a recommendation of the Audit Committee to nominate or compensate an external auditor not adopted by the Board.

**Reliance on certain exemptions**

Since the commencement of the Company's most recently completed financial year, the Company has not relied on the exemptions in section 2.4 (*De Minimis Non-audit Services*), section 3.2 (*Initial Public Offerings*), section 3.4 (*Events Outside Control of Member*) or section 3.5 (*Death, Disability or Resignation of Audit Committee Member*) of NI 52-110, or an exemption from NI 52-110, in whole or in part, granted under Part 8 (*Exemptions*).

Since the commencement of the Company's most recently completed financial year, the Company has not relied on the exemption in subsection 3.3(2) (*Controlled Companies*), section 3.6 (*Temporary Exemption for Limited and Exceptional Circumstances*) or the exemption in section 3.8 (*Acquisition of Financial Literacy*) of NI 52-110.

**Pre-approval policies and procedures**

The Audit Committee has not adopted specific policies and procedures for the engagement of non-audit services; however, the Audit Committee approves all non-audit services in advance.

*Page 129*

**External auditor service fees (by category)**

PricewaterhouseCoopers LLP served as the Company's external auditor for the years ended December 31, 2022 and December 31, 2021. The aggregate fees billed by our external auditor during the years ended December 31, 2022 and December 31, 2021 are set out in the table below:

---

| | | |
|:---|:---|:---|
|  | &nbsp;&nbsp;&nbsp; <br> **Year Ended**<br> **December 31, 2022** | &nbsp;&nbsp;&nbsp; **Year Ended**<br> **December 31, 2021** |
| <br> Audit fees (1)<br>| &nbsp;&nbsp;&nbsp; <br> $251620<br>| &nbsp;&nbsp;&nbsp; <br> $220318<br>|
| <br> Audit-related fees (2)<br>| &nbsp;&nbsp;&nbsp; <br> Nil<br>| &nbsp;&nbsp;&nbsp; <br> $46858<br>|
| <br> Tax fees (3)<br>| <br> $101562 | &nbsp;&nbsp;&nbsp; <br> $127109<br>|
| <br> All other fees (4)<br>| &nbsp;&nbsp;&nbsp; <br> Nil<br>| &nbsp;&nbsp;&nbsp; <br> Nil<br>|
| <br> **Total**<br>| <br> **$353182**  | &nbsp;&nbsp;&nbsp; <br> **$394285**<br>|

---

(1) Represents the aggregate fees billed and expected to be billed by our external auditor for audit services.

(2) Represents the aggregate fees billed for assurance and related services by our external auditor that are reasonably related to the performance of the audit or review of our financial statements and are not included under "Audit Fees".

(3) Represents the aggregate fees billed for professional services rendered by our external auditor for tax compliance, tax advice and tax planning.

(4) Represents the aggregate fees billed for products and services provided by our external auditor other than those services reported under "Audit Fees", "Audit-Related Fees" and "Tax Fees".

**Interests of experts**

**Auditor**

The Company's independent registered public accounting firm is PricewaterhouseCoopers LLP, Chartered Professional Accountants, who have issued a Report of Independent Registered Public Accounting Firm dated March 29, 2023, in respect of the Company's consolidated financial statements as at December 31, 2022 and December 31, 2021 and for each of the years then ended. PricewaterhouseCoopers LLP has advised that they are independent with respect to the Company within the meaning of the Chartered Professional Accountants of British Columbia Code of Conduct and the rules of the US Securities and Exchange Commission (SEC) and the Public Company Accounting Oversight Board (PCAOB) on auditor independence.

**Qualified persons**

All technical and scientific information discussed in this AIF, including Mineral Resource and Mineral Reserve estimates for our material properties other than the Duparquet Project, has been reviewed and approved by Hazel Mullin, P. Geo., our Director, Data Management and Technical Services, who is a Qualified Person for the purposes of NI 43-101.

*Page 130*

All technical and scientific information discussed in this AIF that relates to the Duparquet Project, has been reviewed and approved by Louis Martin, P. Geo., a consultant of First Mining, who is a Qualified Person for the purposes of NI 43-101.

The following individuals prepared the Springpole Technical Report:

· Dr. Gilles Arseneau, Ph.D., P.Geo., of SRK Consulting (Canada) Inc.;

· Gordon Zurowski, P.Eng., of AGP Mining Consultants Inc.;

· Roland Tosney, P.Eng., of AGP Mining Consultants Inc.;

· Cameron McCarthy, P.Eng., P.Geo., P.Tech., of Swiftwater Consulting Ltd.;

· Duke Reimer, P.Eng., Knight Pièsold Consulting Ltd.; and

· Dr. Adrian Dance, Ph.D., P.Eng., of SRK Consulting (Canada) Inc.

The following individuals prepared the Duparquet Technical Report:

· Marina Iund, P.Geo., M.Sc., of InnovExplo Inc.;

· Simon Boudreau, P.Eng., of InnovExplo Inc.;

· Carl Pelletier, P.Geo., of InnovExplo Inc.; and

· Guy Comeau, P.Eng., of Soutex Inc.

Mark Drabble, B.App.Sci (Geology), MAIG, MAusIMM, and Kahan Cervoj, B.App.Sci (Geology), MAIG, MAusIMM, Principal Consultants of Optiro Pty Limited, prepared the Cameron Gold Technical Report.

Each of the abovementioned firms or persons named in this section, "Qualified persons", hold, as either a registered or beneficial holder, less than one percent of the outstanding securities of First Mining or of any associate or affiliate of First Mining. None of the aforementioned firms or persons named in this section, "Qualified persons", received any direct or indirect interest in any securities of First Mining or of any associate or affiliate of First Mining in connection with the preparation and review of any technical report or this AIF. None of the aforementioned firms or persons named in this section, "Qualified persons", nor any directors, officers or employees of such firms or persons, are currently expected to be elected, appointed or employed as a director, officer or employee of the Company or of any associate or affiliate of First Mining.

**Additional information**

You can find more information about First Mining under our SEDAR profile at <u>www.sedar.com</u> and on our website at <u>www.firstmininggold.com</u>.

Our most recent management information circular dated April 29, 2022 contains additional information on how our directors and officers are compensated, the principal holders of our securities, and the securities that are authorized for issuance under our equity compensation plans, and is available under our SEDAR profile at <u>www.sedar.com</u>.

For additional financial information about First Mining, see our audited consolidated annual financial statements and management's discussion and analysis for the financial year ended December 31, 2022, which are also available under our SEDAR profile at <u>www.sedar.com</u> and on our website at <u>www.firstmininggold.com</u>.

Copies of the above documents may be obtained from First Mining by contacting us at Suite 2070 - 1188 West Georgia Street, Vancouver, British Columbia V6E 4A2, telephone: 1.844.306.8827.

The information listed above is not included as part of this Annual Information Form.

*Page 131*

**Appendix A**

![](firstmining_ex991img66.jpg)

**FIRST MINING GOLD CORP.**

**<u>AUDIT COMMITTEE CHARTER</u>**

**1.** **INTRODUCTION** 

(a) The audit committee (the "**Committee**") is appointed by the board of directors (the "**Board**") of First Mining Gold Corp. (the "**Company**") to be responsible for the oversight of the accounting and financial reporting process and financial statement audits of the Company.

(b) This charter is prepared to assist the Committee, the Board and management in clarifying responsibilities and ensuring effective communication between the Committee, the Board and management.

**2.** **COMPOSITION** 

(a) The Committee will be composed of three directors from the Board, a majority of whom will be independent (as defined in *National Instrument 58-101 - Disclosure of Corporate Governance Practices*).

(b) All members of the Committee will be financially literate as defined by applicable legislation. If, upon appointment, a member of the Committee is not financially literate as required, the person will be provided a three-month period in which to achieve the required level of literacy.

*Page 132*

**3.** **RESPONSIBILITIES** 

The Committee has the responsibility to:

(i) review and report to the board of directors of the Company on the following before they are publicly disclosed:

(A) the financial statements and MD&A (management discussion and analysis) (as defined in *National Instrument 51-102 – Continuous Disclosure Obligations*) of the Company;

(B) the auditor's report, if any, prepared in relation to those financial statements,

(ii) review the Company's annual and interim earnings press releases before the Company publicly discloses this information;

(iii) satisfy itself that adequate procedures are in place for the review of the Company's public disclosure of financial information extracted or derived from the Company's financial statements and periodically assess the adequacy of those procedures;

(iv) recommend to the Board:

(A) the external auditor to be nominated for the purpose of preparing or issuing an auditor's report or performing other audit, review or attest services for the Company; and

(B) the compensation of the external auditor,

(v) oversee the work of the external auditor engaged for the purpose of preparing or issuing an auditor's report or performing other audit, review or attest services for the Company, including the resolution of disagreements between management and the external auditor regarding financial reporting;

(vi) monitor, evaluate and report to the board of directors on the integrity of the financial reporting process and the system of internal controls that management and the board of directors have established;

(vii) monitor the management of the principal risks that could impact the financial reporting of the Company;

(viii) establish procedures for the receipt, retention and treatment of complaints received by the Company regarding accounting, internal accounting controls, or auditing matters;

(ix) pre-approve all non-audit services to be provided to the Company or its subsidiary entities by the Company's external auditor;

(x) review and approve the Company's hiring policies regarding partners, employees and former partners and employees of the present and former external auditor of the Company;

(xi) with respect to ensuring the integrity of disclosure controls and internal controls over financial reporting, understand the process utilized by the Chief Executive Officer and the Chief Financial Officer to comply with National Instrument 52-109 - Certification of Disclosure in Issuers' Annual and Interim Filings; and

(xii) review, and report to the Board on its concurrence with the disclosure required by Form 52-110F2 – Disclosure by Venture Issuers in any management information circular prepared by the Company.

**4.** **AUTHORITY** 

(a) The Committee has the authority to engage independent counsel and other advisors as it deems necessary to carry out its duties and the Committee will set the compensation for such advisors.

(b) The Committee has the authority to communicate directly with and to meet with the external auditor, without management involvement. This extends to requiring the external auditor to report directly to the Committee.

**5.** **REPORTING** 

(a) The Committee will report to the Board on the proceedings of each Committee meeting and on the Committee's recommendations at the next regularly scheduled Board meeting.

**6.** **EFFECTIVE DATE** 

(a) This Charter was implemented by the Board on May 19, 2015.

<br> <u>*Page 133*</u>

## Exhibit 99.4

**EXHIBIT 99.4**

**CERTIFICATION PURSUANT TO SECTION 302 OF THE**

**SARBANES-OXLEY ACT OF 2002**

I, Daniel W. Wilton, certify that:

1. I have reviewed this annual report on Form 40-F of First Mining Gold Corp.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the issuer as of, and for, the periods presented in this report;

4. The issuer's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the issuer and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the issuer, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the issuer's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the issuer's internal control over financial reporting that occurred during the period covered by the annual report that has materially affected, or is reasonably likely to materially affect, the issuer's internal control over financial reporting; and

5. The issuer's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the issuer's auditors and the audit committee of the issuer's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the issuer's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the issuer's internal control over financial reporting.

Date: March 29, 2023

---

| |
|:---|
| */s/ Daniel W. Wilton* |
| Daniel W. Wilton |
| Chief Executive Officer |
| (Principal Executive Officer) |

---

## Exhibit 99.5

**EXHIBIT 99.5**

**CERTIFICATION PURSUANT TO SECTION 302 OF THE**

**SARBANES-OXLEY ACT OF 2002**

I, Lisa Peterson, certify that:

1. I have reviewed this annual report on Form 40-F of First Mining Gold Corp.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the issuer as of, and for, the periods presented in this report;

4. The issuer's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the issuer and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the issuer, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the issuer's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the issuer's internal control over financial reporting that occurred during the period covered by the annual report that has materially affected, or is reasonably likely to materially affect, the issuer's internal control over financial reporting; and

5. The issuer's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the issuer's auditors and the audit committee of the issuer's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the issuer's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the issuer's internal control over financial reporting.

Date: March 29, 2023

---

| |
|:---|
| */s/ Lisa Peterson* |
| Lisa Peterson |
| Chief Financial Officer |
| (Principal Financial Officer and) Principal Accounting Officer |

---

## Exhibit 99.6

**EXHIBIT 99.6**

**CERTIFICATION PURSUANT TO**

**SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002**

The undersigned, Daniel W. Wilton, hereby certifies, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(a) the annual report on Form 40-F of First Mining Gold Corp. for the year ended December 31, 2022 fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(b) information contained in the Form 40-F fairly presents, in all material respects, the financial condition and results of operations of First Mining Gold Corp.

Date: March 29, 2023

---

| |
|:---|
| */s/ Daniel W. Wilton* |
| Daniel W. Wilton |
| Chief Executive Officer |
| (Principal Executive Officer) |

---

## Exhibit 99.7

**EXHIBIT 99.7**

**CERTIFICATION PURSUANT TO**

**SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002**

The undersigned, Lisa Peterson, hereby certifies, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(a) the annual report on Form 40-F of First Mining Gold Corp. for the year ended December 31, 2022 fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(b) information contained in the Form 40-F fairly presents, in all material respects, the financial condition and results of operations of First Mining Gold Corp.

Date: March 29, 2023

---

| |
|:---|
| */s/ Lisa Peterson* |
| Lisa Peterson |
| Chief Financial Officer |
| (Principal Financial Officer and) Principal Accounting Officer |

---

## Exhibit 99.8

**EXHIBIT 99.8**

March 29, 2023

VIA EDGAR

United States Securities and Exchange Commission

---

| | |
|:---|:---|
| Re:  | First Mining Gold Corp. (the "**Company**") |
|  | Annual Report on Form 40-F  |
|  | Consent of Expert  |

---

This letter is provided in connection with the Company's Form 40-F annual report for the year ended December 31, 2022 (the "**Annual Report**") to be filed by the Company with the United States Securities and Exchange Commission (the "**SEC**"). The Annual Report incorporates by reference the Annual Information Form of the Company for the year ended December 31, 2022.

I, Dr. Gilles Arseneau, Ph.D., P.Geo., of SRK Consulting (Canada) Inc., hereby consent to the use of my name in the Annual Report and in the Registration Statement on Form F-10 (File No. 333-259275) of the Company (the "**Registration Statement**"), in connection with reference to my involvement in the preparation of the following technical report:

**"NI 43-101 Technical Report and Pre-Feasibility Study on the Springpole Gold Project, Ontario, Canada (the "Technical Report").**<br>

and to references to the Technical Report, or portions thereof, in the Annual Report and Registration Statement, and to the inclusion and incorporation by reference of the information derived from the Technical Report in the Annual Report and Registration Statement.

Yours truly,

---

| |
|:---|
| */s/ Dr. Gilles Arseneau* |
| Dr. Gilles Arseneau, Ph.D., P.Geo. |
| Associate Consultant (Geology) |
| SRK Consulting (Canada) Inc. |

---

## Exhibit 99.9

**EXHIBIT 99.9**

March 29, 2023

VIA EDGAR

United States Securities and Exchange Commission

---

| | |
|:---|:---|
| Re:  | First Mining Gold Corp. (the "**Company**") |
|  | Annual Report on Form 40-F  |
|  | Consent of Expert  |

---

This letter is provided in connection with the Company's Form 40-F annual report for the year ended December 31, 2022 (the "**Annual Report**") to be filed by the Company with the United States Securities and Exchange Commission (the "**SEC**"). The Annual Report incorporates by reference the Annual Information Form of the Company for the year ended December 31, 2022.

I, Gordon Zurowski, P.Eng., of AGP Mining Consultants Inc., hereby consent to the use of my name in the Annual Report and in the Registration Statement on Form F-10 (File No. 333-259275) of the Company (the "**Registration Statement**"), in connection with reference to my involvement in the preparation of the following technical report:

**"NI 43-101 Technical Report and Pre-Feasibility Study on the Springpole Gold Project, Ontario, Canada (the "Technical Report").**<br>

and to references to the Technical Report, or portions thereof, in the Annual Report and Registration Statement, and to the inclusion and incorporation by reference of the information derived from the Technical Report in the Annual Report and Registration Statement.

Yours truly,

---

| |
|:---|
| */s/ Gordon Zurowski* |
| Gordon Zurowski, P.Eng. |
| AGP Mining Consultants Inc. |

---

## Exhibit 99.10

**EXHIBIT 99.10**

March 29, 2023

VIA EDGAR

United States Securities and Exchange Commission

---

| | |
|:---|:---|
| Re:  | First Mining Gold Corp. (the "**Company**") |
|  | Annual Report on Form 40-F  |
|  | Consent of Expert  |

---

This letter is provided in connection with the Company's Form 40-F annual report for the year ended December 31, 2022 (the "**Annual Report**") to be filed by the Company with the United States Securities and Exchange Commission (the "**SEC**"). The Annual Report incorporates by reference the Annual Information Form of the Company for the year ended December 31, 2022.

I, Roland Tosney, P.Eng., of AGP Mining Consultants Inc., hereby consent to the use of my name in the Annual Report and in the Registration Statement on Form F-10 (File No. 333-259275) of the Company (the "**Registration Statement**"), in connection with reference to my involvement in the preparation of the following technical report:

**"NI 43-101 Technical Report and Pre-Feasibility Study on the Springpole Gold Project, Ontario, Canada (the "Technical Report").**<br>

and to references to the Technical Report, or portions thereof, in the Annual Report and Registration Statement, and to the inclusion and incorporation by reference of the information derived from the Technical Report in the Annual Report and Registration Statement.

Yours truly,

---

| |
|:---|
| */s/ Roland Tosney*  |
| Roland Tosney, P.Eng.<br> AGP Mining Consultants Inc. |

---

## Exhibit 99.11

**EXHIBIT 99.11**

March 29, 2023

VIA EDGAR

United States Securities and Exchange Commission

---

| | |
|:---|:---|
| Re:  | First Mining Gold Corp. (the "**Company**") |
|  | Annual Report on Form 40-F  |
|  | Consent of Expert  |

---

This letter is provided in connection with the Company's Form 40-F annual report for the year ended December 31, 2022 (the "**Annual Report**") to be filed by the Company with the United States Securities and Exchange Commission (the "**SEC**"). The Annual Report incorporates by reference the Annual Information Form of the Company for the year ended December 31, 2022.

I, Cameron McCarthy, P.Eng., P.Geo., P.Tech., of Swiftwater Consulting Ltd., hereby consent to the use of my name in the Annual Report and in the Registration Statement on Form F-10 (File No. 333-259275) of the Company (the "**Registration Statement**"), in connection with reference to my involvement in the preparation of the following technical report:

**"NI 43-101 Technical Report and Pre-Feasibility Study on the Springpole Gold Project, Ontario, Canada (the "Technical Report").**<br>

and to references to the Technical Report, or portions thereof, in the Annual Report and Registration Statement, and to the inclusion and incorporation by reference of the information derived from the Technical Report in the Annual Report and Registration Statement.

Yours truly,

---

| |
|:---|
| */s/ Cameron McCarthy* |
| Cameron McCarthy, P.Eng., P.Geo., P.Tech. |
| Swiftwater Consulting Ltd. |

---

## Exhibit 99.12

**EXHIBIT 99.12**

March 29, 2023

VIA EDGAR

United States Securities and Exchange Commission

---

| | |
|:---|:---|
| Re:  | First Mining Gold Corp. (the "**Company**") |
|  | Annual Report on Form 40-F  |
|  | Consent of Expert  |

---

This letter is provided in connection with the Company's Form 40-F annual report for the year ended December 31, 2022 (the "**Annual Report**") to be filed by the Company with the United States Securities and Exchange Commission (the "**SEC**"). The Annual Report incorporates by reference the Annual Information Form of the Company for the year ended December 31, 2022.

I, Duke Reimer, P.Eng., of Knight Piésold Ltd., hereby consent to the use of my name in the Annual Report and in the Registration Statement on Form F-10 (File No. 333-259275) of the Company (the "**Registration Statement**"), in connection with reference to my involvement in the preparation of the following technical report:

**"NI 43-101 Technical Report and Pre-Feasibility Study on the Springpole Gold Project, Ontario, Canada (the "Technical Report").**<br>

and to references to the Technical Report, or portions thereof, in the Annual Report and Registration Statement, and to the inclusion and incorporation by reference of the information derived from the Technical Report in the Annual Report and Registration Statement.

Yours truly,

---

| |
|:---|
| */s/ Duke Reimer* |
| Duke Reimer, P.Eng. |
| Knight Piésold Ltd. |

---

## Exhibit 99.13

**EXHIBIT 99.13** 

March 29, 2023

VIA EDGAR

United States Securities and Exchange Commission

---

| | |
|:---|:---|
| Re:  | First Mining Gold Corp. (the "**Company**") |
|  | Annual Report on Form 40-F  |
|  | Consent of Expert  |

---

This letter is provided in connection with the Company's Form 40-F annual report for the year ended December 31, 2022 (the "**Annual Report**") to be filed by the Company with the United States Securities and Exchange Commission (the "**SEC**"). The Annual Report incorporates by reference the Annual Information Form of the Company for the year ended December 31, 2022.

I, Dr. Adrian Dance, Ph.D., P.Eng. (BC # 37151), FAusIMM, of SRK Consulting (Canada) Inc., hereby consent to the use of my name in the Annual Report and in the Registration Statement on Form F-10 (File No. 333-259275) of the Company (the "**Registration Statement**"), in connection with reference to my involvement in the preparation of the following technical report:

**"NI 43-101 Technical Report and Pre-Feasibility Study on the Springpole Gold Project, Ontario, Canada (the "Technical Report").**<br>

and to references to the Technical Report, or portions thereof, in the Annual Report and Registration Statement, and to the inclusion and incorporation by reference of the information derived from the Technical Report in the Annual Report and Registration Statement.

Yours truly,

---

| |
|:---|
| */s/ Dr. Adrian Dance* |
| Dr. Adrian Dance, Ph.D., P.Eng. (BC # 37151), FAusIMM |
| Principal Consultant – Metallurgy |
| SRK Consulting (Canada) Inc. |

---

## Exhibit 99.14

**EXHIBIT 99.14**

March 29, 2023

VIA EDGAR

United States Securities and Exchange Commission

---

| | |
|:---|:---|
| Re:  | First Mining Gold Corp. (the "**Company**") |
|  | Annual Report on Form 40-F  |
|  | Consent of Expert  |

---

This letter is provided in connection with the Company's Form 40-F annual report for the year ended December 31, 2022 (the "**Annual Report**") to be filed by the Company with the United States Securities and Exchange Commission (the "**SEC**"). The Annual Report incorporates by reference the Annual Information Form of the Company for the year ended December 31, 2022.

I, Marina Iund, P.Geo., M.Sc., of InnovExplo Inc., hereby consent to the use of my name in the Annual Report and in the Registration Statement on Form F-10 (File No. 333-259275) of the Company (the "**Registration Statement**"), in connection with reference to my involvement in the preparation of the following technical report:

**"NI 43-101 Technical Report and Mineral Resource Estimate Update for the Duparquet Project, Quebec, Canada (the "Technical Report")."**<br>

and to references to the Technical Report, or portions thereof, in the Annual Report and Registration Statement, and to the inclusion and incorporation by reference of the information derived from the Technical Report in the Annual Report and Registration Statement.

Yours truly,

---

| |
|:---|
| */s/ Marina Iund* |
| Marina Iund, P.Geo., M.Sc. |
| Senior Resources Geologist |
| InnovExplo Inc. |

---

## Exhibit 99.15

**EXHIBIT 99.15**

March 29, 2023

VIA EDGAR

United States Securities and Exchange Commission

---

| | |
|:---|:---|
| Re:  | First Mining Gold Corp. (the "**Company**") |
|  | Annual Report on Form 40-F  |
|  | Consent of Expert  |

---

This letter is provided in connection with the Company's Form 40-F annual report for the year ended December 31, 2022 (the "**Annual Report**") to be filed by the Company with the United States Securities and Exchange Commission (the "**SEC**"). The Annual Report incorporates by reference the Annual Information Form of the Company for the year ended December 31, 2022.

I, Simon Boudreau, P.Eng., of InnovExplo Inc., hereby consent to the use of my name in the Annual Report and in the Registration Statement on Form F-10 (File No. 333-259275) of the Company (the "**Registration Statement**"), in connection with reference to my involvement in the preparation of the following technical report:

**"NI 43-101 Technical Report and Mineral Resource Estimate Update for the Duparquet Project, Quebec, Canada (the "Technical Report")."**<br>

and to references to the Technical Report, or portions thereof, in the Annual Report and Registration Statement, and to the inclusion and incorporation by reference of the information derived from the Technical Report in the Annual Report and Registration Statement.

Yours truly,

---

| |
|:---|
| */s/ Simon Boudreau* |
| Simon Boudreau, P.Eng. |
| Senior Mine Engineer |
| InnovExplo Inc. |

---

## Exhibit 99.16

**EXHIBIT 99.16**

March 29, 2023

VIA EDGAR

United States Securities and Exchange Commission

---

| | |
|:---|:---|
| Re:  | First Mining Gold Corp. (the "**Company**") |
|  | Annual Report on Form 40-F  |
|  | Consent of Expert  |

---

This letter is provided in connection with the Company's Form 40-F annual report for the year ended December 31, 2022 (the "**Annual Report**") to be filed by the Company with the United States Securities and Exchange Commission (the "**SEC**"). The Annual Report incorporates by reference the Annual Information Form of the Company for the year ended December 31, 2022.

I, Carl Pelletier, P.Geo., of InnovExplo Inc., hereby consent to the use of my name in the Annual Report and in the Registration Statement on Form F-10 (File No. 333-259275) of the Company (the "**Registration Statement**"), in connection with reference to my involvement in the preparation of the following technical report:

**"NI 43-101 Technical Report and Mineral Resource Estimate Update for the Duparquet Project, Quebec, Canada (the "Technical Report")."**<br>

and to references to the Technical Report, or portions thereof, in the Annual Report and Registration Statement, and to the inclusion and incorporation by reference of the information derived from the Technical Report in the Annual Report and Registration Statement.

Yours truly,

---

| |
|:---|
| */s/ Carl Pelletier* |
| Carl Pelletier, P.Geo. |
| Co-President and Founder |
| InnovExplo Inc. |

---

## Exhibit 99.17

**EXHIBIT 99.17**

March 29, 2023

VIA EDGAR

United States Securities and Exchange Commission

---

| | |
|:---|:---|
| Re:  | First Mining Gold Corp. (the "**Company**") |
|  | Annual Report on Form 40-F  |
|  | Consent of Expert  |

---

This letter is provided in connection with the Company's Form 40-F annual report for the year ended December 31, 2022 (the "**Annual Report**") to be filed by the Company with the United States Securities and Exchange Commission (the "**SEC**"). The Annual Report incorporates by reference the Annual Information Form of the Company for the year ended December 31, 2022.

I, Guy Comeau, P.Eng., of Soutex Inc., hereby consent to the use of my name in the Annual Report and in the Registration Statement on Form F-10 (File No. 333-259275) of the Company (the "**Registration Statement**"), in connection with reference to my involvement in the preparation of the following technical report:

**"NI 43-101 Technical Report and Mineral Resource Estimate Update for the Duparquet Project, Quebec, Canada (the "Technical Report")."**<br>

and to references to the Technical Report, or portions thereof, in the Annual Report and Registration Statement, and to the inclusion and incorporation by reference of the information derived from the Technical Report in the Annual Report and Registration Statement.

Yours truly,

---

| |
|:---|
| */s/ Guy Comeau* |
| Guy Comeau, P.Eng. |
| Senior Metallurgist |
| Soutex Inc. |

---

## Exhibit 99.18

**EXHIBIT 99.18**

March 29, 2023

VIA EDGAR

United States Securities and Exchange Commission

---

| | |
|:---|:---|
| Re:  | First Mining Gold Corp. (the "**Company**")  |
|  | Annual Report on Form 40-F  |
|  | Consent of Expert  |

---

This letter is provided in connection with the Company's Form 40-F annual report for the year ended December 31, 2022 (the "**Annual Report**") to be filed by the Company with the United States Securities and Exchange Commission (the "**SEC**"). The Annual Report incorporates by reference the Annual Information Form of the Company for the year ended December 31, 2022.

I, Mark Drabble, B.App.Sci (Geology), MAIG, MAusIMM, of Optiro Pty Limited, hereby consent to the use of my name in the Annual Report and in the Registration Statement on Form F-10 (File No. 333-259275) of the Company (the "**Registration Statement**"), in connection with reference to my involvement in the preparation of the following technical report:

**"Technical Report on the Cameron Gold Deposit, Ontario, Canada", dated January 17, 2017 (the "Technical Report").**<br>

and to references to the Technical Report, or portions thereof, in the Annual Report and Registration Statement, and to the inclusion and incorporation by reference of the information derived from the Technical Report in the Annual Report and Registration Statement.

Yours truly,

---

| |
|:---|
| */s/ Mark Drabble* |
| Mark Drabble, B.App.Sci (Geology), MAIG, MAusIMM |
| Principal Consultant |
| Optiro Pty Limited |

---

## Exhibit 99.19

**EXHIBIT 99.19**

March 29, 2023

VIA EDGAR

United States Securities and Exchange Commission

---

| | |
|:---|:---|
| Re:  | First Mining Gold Corp. (the "**Company**")  |
|  | Annual Report on Form 40-F  |
|  | Consent of Expert  |

---

This letter is provided in connection with the Company's Form 40-F annual report for the year ended December 31, 2022 (the "**Annual Report**") to be filed by the Company with the United States Securities and Exchange Commission (the "**SEC**"). The Annual Report incorporates by reference the Annual Information Form of the Company for the year ended December 31, 2022.

I, Kahan Cervoj, B.App.Sci (Geology), MAIG, MAusIMM, of Optiro Pty Limited, hereby consent to the use of my name in the Annual Report and in the Registration Statement on Form F-10 (File No. 333-259275) of the Company (the "**Registration Statement**"), in connection with reference to my involvement in the preparation of the following technical report:

**"Technical Report on the Cameron Gold Deposit, Ontario, Canada", dated January 17, 2017 (the "Technical Report").**<br>

and to references to the Technical Report, or portions thereof, in the Annual Report and Registration Statement, and to the inclusion and incorporation by reference of the information derived from the Technical Report in the Annual Report and Registration Statement.

Yours truly,

---

| |
|:---|
| */s/ Kahan Cervoj*  |
| Kahan Cervoj, B.App.Sci (Geology), MAIG, MAusIMM<br> Principal Consultant<br> Optiro Pty Limited |

---

## Exhibit 99.20

**EXHIBIT 99.20**

March 29, 2023

VIA EDGAR

United States Securities and Exchange Commission

---

| | |
|:---|:---|
| Re:  | First Mining Gold Corp. (the "**Company**") |
|  | Technical Information in Annual Report on Form 40-F and Annual Information Form |

---

This letter is provided in connection with the Company's Form 40-F annual report for the year ended December 31, 2022 (the "**Annual Report**") to be filed by the Company with the United States Securities and Exchange Commission (the "**SEC**"). The Annual Report incorporates by reference the Annual Information Form of the Company for the year ended December 31, 2022.

I, Hazel Mullin, P.Geo., Director, Data Management and Technical Services of the Company, hereby consent to being named as a qualified person in the Annual Report and authorize the use of the information included or incorporated by reference into the Annual Report and represented therein as having been prepared by me or under my supervision.

I also consent to being named as a qualified person in the Registration Statement on Form F-10 (File No. 333-259275) of the Company (the "**Registration Statement**") and authorize the use of the information included or incorporated by reference into the Registration Statement and represented therein as having been prepared by me or under my supervision.

Yours truly,

---

| |
|:---|
| */s/ Hazel Mullin* |
| Hazel Mullin, P.Geo. |
| Director, Data Management and Technical Services |

---

## Exhibit 99.21

**EXHIBIT 99.21**

March 29, 2023

VIA EDGAR

United States Securities and Exchange Commission

---

| | |
|:---|:---|
| Re:  | First Mining Gold Corp. (the "**Company**") |
|  | Technical Information in Annual Report on Form 40-F and Annual Information Form |

---

This letter is provided in connection with the Company's Form 40-F annual report for the year ended December 31, 2022 (the "**Annual Report**") to be filed by the Company with the United States Securities and Exchange Commission (the "**SEC**"). The Annual Report incorporates by reference the Annual Information Form of the Company for the year ended December 31, 2022.

I, Louis Martin, P.Geo., Director, a consultant to the Company, hereby consent to being named as a qualified person in the Annual Report and authorize the use of the information included or incorporated by reference into the Annual Report and represented therein as having been prepared by me or under my supervision.

I also consent to being named as a qualified person in the Registration Statement on Form F-10 (File No. 333-259275) of the Company (the "**Registration Statement**") and authorize the use of the information included or incorporated by reference into the Registration Statement and represented therein as having been prepared by me or under my supervision.

Yours truly,

---

| |
|:---|
| */s/ Louis Martin* |
| Louis Martin, P.Geo. |
| Consultant |

---

## Exhibit 99.22

**EXHIBIT 99.22**

Consent of Independent Registered Public Accounting Firm

We hereby consent to the incorporation by reference in this Annual Report on Form 40-F for the year ended December 31, 2022 of First Mining Gold Corp. of our report dated March 29, 2023, relating to the consolidated financial statements, which appears in Exhibit 99.2 incorporated by reference in this Annual Report on Form 40-F.

We also consent to the incorporation by reference in the Registration Statement on Form F-10 (No. 333-259275) of First Mining Gold Corp. of our report dated March 29, 2023 referred to above. We also consent to reference to us under the heading "Interests of Experts" in the Annual Information Form, filed as Exhibit 99.1 to this Annual Report on Form 40-F, which is incorporated by reference in such Registration Statement.

![](firstmining_ex9922img3.jpg)

Chartered Professional Accountants

Vancouver, Canada

March 29, 2023