UNITED
STATES
SECURITIES AND EXCHANGE COMMISSION

Washington,
D.C. 20549



FORM 40-F



|  |  |                                                                                     
|- |  | ------------------------------------------------------------------------------------
|o |  | REGISTRATION STATEMENT PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934

OR

|  |  |                                                                                        
|- |  | ---------------------------------------------------------------------------------------
|þ |  | ANNUAL REPORT PURSUANT TO SECTION 13(a) OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934



For the fiscal year ended December 31,
2016	Commission file number: 1-32135



Seabridge
Gold Inc.

(Exact name of Registrant as specified
in its charter)

|                                                                  |  |                                                          |  |                                     
|----------------------------------------------------------------- |  | -------------------------------------------------------- |  | ------------------------------------
|Canada                                                            |  | 1040                                                     |  | Not Applicable                      
|                                                                  |  |                                                          |  |                                     
|(Province or other jurisdiction of incorporation or organization) |  | (Primary Standard Industrial Classification Code Number) |  | (I.R.S. Employer Identification No.)
|                                                                  |  |                                                          |  |                                     

106 Front Street East, Suite 400

Toronto, Ontario CANADA M5A 1E1

(416) 367-9292

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



Corporation Service Company

1180 Sixth Avenue

New York, New York 10036

(212) 299-5656

(Name, address and telephone number of agent
for service in the United States)



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



|Title of Each Class:        |  | Name of Each Exchange On Which Registered:
|--------------------------- |  | ------------------------------------------
|Common Shares, no par value |  | NYSE                                      
|                            |  |                                           

Securities registered or to be registered pursuant to Section
12(g) of the Act: None



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:



|                              |  |                                          
|----------------------------- |  | -----------------------------------------
|þ     Annual Information Form |  | þ     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: 54,321,797 common shares (as of
December 31, 2016).



Indicate by check mark whether the Registrant by filing the
information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b)
under the Securities Exchange Act of 1934 (the “Exchange Act”). If “Yes” is marked, indicate the filing
number assigned to the Registrant in connection with such Rule. oYes     þ
No



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. þ Yes     o
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). o Yes     
þ No (not required)













EXPLANATORY NOTE



Seabridge Gold Inc.
(the “Registrant” or “we” or “us”) is a Canadian issuer eligible to file its annual report
pursuant to Section 13 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), on Form 40-F (“Form
40-F”) pursuant to the multi-jurisdictional disclosure system of the Exchange Act. We are a “foreign private issuer”
as defined in Rule 3b-4 under the Exchange Act. Accordingly, our equity securities are exempt from Sections 14(a), 14(b),
14(c), 14(f) and 16 of the Exchange Act pursuant to Rule 3a12-3.



PRINCIPAL DOCUMENTS



The following documents
have been filed as part of this Annual Report on Form 40-F and incorporated by reference herein:



A. Annual Information
Form



For our Annual Information
Form (the “AIF”) for the year ended December 31, 2016, see Exhibit 99.1 of this Annual Report on Form 40-F.



B. Audited Annual
Financial Statements



For our audited annual
financial statements (“Audited Financial Statements”), for the year ended December 31, 2016, including the Independent
Auditors’ Report of Registered Public Accounting Firm, see Exhibit 99.2 of this Form 40-F. The Audited Financial
Statements are stated in Canadian Dollars (CDN$) and are prepared in accordance with International Financial Reporting Standards
(IFRS) as issued by the International Accounting Standards Board (IASB).



C. Management’s
Discussion and Analysis



For our management’s
discussion and analysis (the “MD&A”) for the year ended December 31, 2016, see Exhibit 99.3 of this
Form 40-F.



FORWARD-LOOKING STATEMENTS



This Form 40-F and
the exhibits attached hereto contain “forward-looking statements” within the meaning of Section 27A of the Securities
Act of 1933, as amended (the “Securities Act”), and Section 21E of the Exchange Act, and forward-looking information
within the meaning of Canadian securities laws concerning our projects, business approach and plans, including estimated production,
capital, operating and cash flow estimates and other matters at our projects. 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 “expects”, “anticipates”, “plans”, “projects”,
“estimates”, “assumes”, “intends”, “strategy”, “goals”, “objectives”
or variations thereof or stating that certain actions, events or results “may”, “could”, “would”,
“might” or “will” be taken, occur or be achieved, or the negative of any of these terms and similar expressions)
are not statements of historical fact and may be forward-looking statements and forward-looking information (collectively referred
to in the following information simply as “forward-looking statements”). In addition, statements concerning mineral
reserve and mineral resource estimates constitute forward-looking statements to the extent that they involve estimates of the mineralization
expected to be encountered if a mineral property is developed and the economics of developing a property and producing minerals.



Forward-looking statements
are necessarily based on estimates and assumptions made by us in light of our experience and perception of historical trends, current
conditions and expected future developments. In making the forward-looking statements in this Form 40-F and the exhibits attached
hereto, we have applied several material assumptions including, but not limited to, the assumption that: (i) market fundamentals
will result in sustained demand and prices for gold and copper, and to a much lesser degree, silver and molybdenum; (ii) the potential
for production at our mineral projects will continue operationally, legally and economically; (iii) any additional financing needed
will be available on reasonable terms; and (iv) estimated resources at our projects have merit and there is continuity of mineralization
as reflected in such estimates.





2







Forward-looking statements
are subject to a variety of known and unknown risks, uncertainties and other factors that could cause actual events or results
to differ from those expressed or implied by the forward-looking statements, including, without limitation:



| | • | our history of net losses and negative cash flows from operations and expectation of future losses and negative cash
                                                                    flows from operations;
| | - | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | • | risks related to our ability to continue our exploration activities and future development activities, and to continue
                                                                    to                                                                     maintain corporate office support of these activities,
                                                                    which are                                                                     dependent
                                                                                                                                                                               on our
                                                                    ability to                                                                     obtaining suitable financing, enter
                                                                    into joint                                                                        ventures or sell
                                                                    property interests;
| | - | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | • | uncertainty of whether the reserves estimated on our mineral properties will be brought into production;
| | - | --------------------------------------------------------------------------------------------------------



| | • | uncertainty relating to the assumptions underlying our resource and reserve estimates;
| | - | --------------------------------------------------------------------------------------



| | • | uncertainty of estimates of capital costs, operating costs, production and economic returns;
| | - | --------------------------------------------------------------------------------------------



| | • | risks related to commercially producing precious metals from our mineral properties;
| | - | ------------------------------------------------------------------------------------



| | • | risks related to fluctuations in the market price of gold, copper and other metals;
| | - | -----------------------------------------------------------------------------------



| | • | risks related to fluctuations in foreign exchange rates;
| | - | --------------------------------------------------------



| | • | mining, exploration and development risks that could result in damage to mineral properties, plant and equipment,
                                                                    personal injury, environmental damage and delays in mining, which may be uninsurable or not insurable in adequate
                                                                    amounts;
| | - | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | • | risks related to obtaining all necessary permits and governmental approvals for exploration, development and mining activities,
including in respect of environmental regulation;
| | - | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | • | uncertainty related to title to our mineral properties and rights of access over or through lands subject to third party mineral
tenures;
| | - | -----------------------------------------------------------------------------------------------------------------------------------------



| | • | risks related to unsettled First Nations rights and title, including risks arising as a result of the Supreme Court of Canada
decision in Tsilhqot'in Nation v. British Columbia of June 26, 2014, and settled Treaty Nations' rights;
| | - | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | • | risks related to increases in demand for exploration, development and construction services equipment, and related cost increases;
| | - | ----------------------------------------------------------------------------------------------------------------------------------



| | • | increased competition in the mining industry;
| | - | ---------------------------------------------



| | • | our need to attract and retain qualified management and personnel;
| | - | ------------------------------------------------------------------



| | • | risks related to conflicts of interest due to some of our directors' and officers' involvement with other natural resource
companies; and
| | - | -----------------------------------------------------------------------------------------------------------------------------------------



| | • | our classification as a "passive foreign investment company" under the United States tax code.                                                                                                                                   
| | - | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| | • | uncertainty surrounding an
                                  audit by the Canada Revenue Agency of the Company's refund claim in respect of the British Columbia
                                  Mining Exploration Tax Credit.



This list is not exhaustive
of the factors that may affect any of our forward-looking statements. Forward-looking statements are statements about the future
and are inherently uncertain, and actual achievements or other future events or conditions may differ materially from those reflected
in the forward-looking statements due to a variety of risks, uncertainties and other factors, including, without limitation, those
referred to in our AIF attached hereto as Exhibit 99.1 under the heading “Risk Factors” and elsewhere in the
AIF, and in the documents incorporated by reference in this Form 40-F and the AIF. In addition, although we have attempted to identify
important factors that could cause actual achievements, events or conditions to differ materially from those identified in the
forward-looking statements, there may be other factors that cause achievements, events or conditions not to be as anticipated,
estimated or intended. It is also noted that while we engage in exploration and development of our properties, we will not undertake
production activities by ourselves.



These forward-looking
statements are based on the beliefs, expectations and opinions of management on the date the statements are made and we do not
assume any obligation to update forward-looking statements, except as required by applicable securities laws, if circumstances
or management’s beliefs, expectations or opinions should change. For the reasons set forth above, persons should not place
undue reliance on forward-looking statements.





3







CURRENCY



Unless otherwise indicated,
all dollar amounts in this Form 40-F are in Canadian dollars. The exchange rate of Canadian dollars into United States dollars,
on December 30, 2016, based on the noon buying rate in New York City for cable transfers in Canadian dollars as certified for customs
purposes by the Federal Reserve Bank of New York, was CDN$1.00 = US$0.745.



NOTE TO UNITED STATES READERS-

DIFFERENCES IN UNITED STATES AND CANADIAN
REPORTING PRACTICES



We are permitted under
the multi-jurisdictional disclosure system adopted by the United States Securities and Exchange Commission (the “SEC”),
to prepare this Form 40-F in accordance with Canadian disclosure requirements, which differ from those of the SEC. We have prepared
our financial statements, which are filed as Exhibit 99.2 to this Form 40-F, in accordance with International Financial
Reporting Standards as issued by the International Accounting Standards Board, and they are not comparable with financial statements
of U.S. and other companies prepared in accordance with U. S. generally accepted accounting principles.



RESOURCE AND RESERVE ESTIMATES



We prepared the AIF
for the fiscal year ended December 31, 2016 attached as Exhibit 99.1 to this Form 40-F and incorporated by reference
herein in accordance with the requirements of Canadian securities laws, which differ from the requirements of U.S. securities laws.
Unless otherwise indicated, all reserve and resource estimates contained in or incorporated by reference in this Form 40-F have
been prepared 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 Classification System (the “CIM”)
“Standards on Mineral Resources and Mineral Reserves”, adopted by the CIM Council, as amended. 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 mineral projects. These standards differ significantly from the requirements of the SEC, including
Industry Guide 7 under the Securities Act. Resource information contained herein and incorporated by reference herein may not be
comparable to similar information disclosed by U.S. companies.





Without limiting the
foregoing, this Form 40-F, including the documents incorporated by reference herein, uses the terms “measured”, “indicated”
and “inferred” resources. U.S. investors are cautioned that, while such terms are recognized and required by Canadian
securities laws, the SEC does not recognize them. Under U.S. standards, mineralization may not be classified as a “reserve”
unless the determination has been made that the mineralization could be economically and legally produced or extracted at the time
the reserve determination is made. U.S. investors are cautioned not to assume that all or any part of measured or indicated resources
will ever be converted into reserves.



U.S. investors should
also understand that “inferred resources” have a great amount of uncertainty as to their existence and great uncertainty
as to their economic and legal feasibility. Inferred resources are based on limited geological evidence and sampling. It is reasonably
expected that the majority of inferred resources could be upgraded to indicated resources with continued exploration. Therefore,
U.S. investors are also cautioned not to assume that all or any part of the inferred resources exist, or that they can be mined
legally or economically. Disclosure of “contained ounces” in a mineral resource is permitted disclosure under Canadian
regulations; however, the SEC normally only permits issuers to report “resources” as in place tonnage and grade without
reference to unit measures. Accordingly, information concerning descriptions of mineralization and resources contained in the
AIF, or in the documents incorporated by reference to this Form 40-F and the AIF, may not be comparable to information made public
by U.S. companies subject to the reporting and disclosure requirements of the SEC.





4







TAX MATTERS



Purchasing, holding
or disposing of our securities may have tax consequences under the laws of the United States and Canada that are not described
in this annual report. Shareholders are solely responsible for determining the tax consequences as applicable to their particular
circumstances and should consult with their own tax advisors concerning an investment in our securities.



U.S. holders of our
common shares should be aware that we believe that for U.S. federal income tax purposes we were classified as a passive foreign
investment company (“PFIC”) during the tax year ended December 31, 2016 and, based upon current business plans and
financial expectations, we expect to be classified as a PFIC for the tax year ending December 31, 2017.



Assuming we are classified
as a PFIC for any year during a U.S. shareholder’s holding period, then such U.S. shareholder generally will be required
to treat any gain realized upon a disposition of our common shares, (as well as any “excess distribution” received
on the common shares) as if the gain were ordinary income (rather than capital gain) that had been realized ratably over the holding
period of the common shares. The amount allocated to the current taxable year or to any year prior to the first taxable year in
which we were a PFIC, would be taxed as ordinary income earned in the current taxable year. The amount allocated to other taxable
years would be taxed at the highest marginal rates applicable to ordinary income for such taxable years, and the U.S. Holder also
would be liable for an interest charge on such tax liability for such years. The ownership and disposition of shares in a PFIC
must be reported on Form 8621, filed with a U.S. Holder’s federal income tax return. The foregoing excess distribution rules
would not apply to the extent that the shareholder makes a timely and effective “qualified electing fund” (“QEF”)
election or a “mark-to-market” election with respect to the common shares. A U.S. shareholder who makes a QEF election
generally must report on a current basis his share of our net capital gain and ordinary earnings for any year in which we are a
PFIC, whether or not we distribute any amounts to our shareholders. For each tax year that we are a PFIC, we will make available
the PFIC annual information statement as provided pursuant to Treasury Regulation Section 1.1295-1(g) on our website. A U.S. shareholder
who makes the mark-to-market election generally must include as ordinary income each year the excess of the fair market value of
the common shares over his basis therein.



Each U.S. shareholder
should consult with his own tax advisor regarding the PFIC rules and U.S. federal income tax consequences of the acquisition, ownership
and disposition of our common shares.



DISCLOSURE CONTROLS AND PROCEDURES



Evaluation of Disclosure Controls and Procedures



At 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 our management, including the Chief Executive Officer (“CEO”) and the Chief Financial Officer (“CFO”),
of the effectiveness of the design and operations of our disclosure controls and procedures (as defined in Rule 13a–15(e)
and Rule 15d–15(e) under the Exchange Act). Based on that evaluation, the CEO and the CFO have concluded that as of
the end of the period covered by this annual report, our disclosure controls and procedures were adequately designed and effective
in ensuring that: (i) information required to be disclosed by us in reports that we file or submit to the SEC under the Exchange
Act is recorded, processed, summarized and reported within the time periods specified in applicable SEC rules and forms and (ii) material
information required to be disclosed in our reports filed under the Exchange Act is accumulated and communicated to our management,
including the CEO and the CFO, as appropriate, to allow for accurate and timely decisions regarding required disclosure.



Management’s Annual Report on Internal Control over
Financial Reporting



For management’s
report on internal control over financial reporting, see “Disclosure Controls and Procedures” and “Internal Controls
over Financial Reporting” in our MD&A attached as Exhibit 99.3 to this annual report on Form 40-F and incorporated
by reference herein.





5







Attestation Report of the Independent Registered Public Accounting
Firm



Our independent registered
public accounting firm has issued an attestation report on our internal control over financial reporting as of December 31,
2016, which immediately precedes the audited consolidated financial statements included as part of Exhibit 99.2 to this
annual report on Form 40-F and incorporated by reference herein.



Changes in Internal Controls over Financial Reporting



During the fiscal year
ended December 31, 2016, no changes occurred in our internal control over financial reporting that have materially affected, or
are reasonably likely to materially affect, our internal control over financial reporting.



Certifications



See Exhibits 31.1, 31.2, 32.1 and 32.2 to
this Form 40-F.



CORPORATE GOVERNANCE



We are subject to a
variety of corporate governance guidelines and requirements of the Toronto Stock Exchange, the NYSE (the “NYSE”), the
Canadian Securities Administrators and the SEC.  We believe that we meet or exceed the applicable corporate governance requirements. 
According to the NYSE Rules, a listed company must adopt and disclose a set of corporate governance guidelines with respect to
specified topics. Such guidelines are required to be posted on the registrant’s website. Although we are listed on the NYSE,
we are not required to comply with all of that exchange’s corporate governance rules which are applicable to U.S. corporations.
The significant ways in which the NYSE governance rules differ for us, as a foreign company, are a reduced quorum requirement for
shareholder meetings, shareholder approval for issuance of common shares that could result in a 20% increase in the number of outstanding
common shares and shareholder approval of certain compensation plans. The guidelines are available for viewing on our website at
http://www.seabridgegold.net/ManCorpPract.pdf and are available without charge in print to any shareholder who requests them. Requests
for copies of the guidelines should be made to the Secretary of our company at 106 Front Street East, Suite 400, Toronto, Ontario,
Canada M5A 1E1, Telephone (416) 367-9292.



We review our governance
practices and monitor developments in Canada and the United States on an on-going basis to ensure we remain in compliance with
applicable rules and standards. The Board is committed to sound corporate governance practices which are both in the interest of
our shareholders and contribute to effective and efficient decision making.



AUDIT COMMITTEE



Audit Committee



The Board has a separately
designated standing Audit Committee established in accordance with Section 3(a)(58)(A) of the Exchange Act. The members of
our Audit Committee are identified under the heading “Audit Committee Information” in the AIF which is attached as
Exhibit 99.1 to this annual report on Form 40-F and incorporated by reference herein. In the opinion of the Board,
all members of the Audit Committee are financially literate and independent, as such terms are defined by the NYSE’s corporate
governance listing standards applicable to us and as determined by Rule 10A-3 under the Exchange Act.





6







Audit Committee Financial Expert



The Board has determined
that Mr. Richard Kraus, Chairman of the Audit Committee, has the necessary qualifications to be designated as an “audit committee
financial expert” within the meaning of applicable SEC Rules and is an “independent director”, as defined pursuant
to Item 407(d)(5) of SEC Regulation S-K. Mr. Kraus is a Certified Public Accountant and an accomplished business leader with a
broad range of experience as an investor, board director, senior executive and business consultant across multiple industries with
an emphasis on mining and natural resources. From 1981-1997 he served in various senior executive roles (including CEO, COO and
CFO) of Echo Bay Mines, a major gold mining company that was acquired by Kinross Gold Corporation in 2003. Mr. Kraus is currently
Executive Chairman of The RMH Group, Inc., a privately owned engineering consulting firm with more than 100 employees. He is a
graduate of LaSalle University in Business Administration. The SEC has indicated that the designation of an audit committee financial
expert does not make that person an “expert” for any purpose, impose any duties, obligations, or liability on that
person that are greater than those imposed on members of the audit committee and board of directors who do not carry this designation,
or affect the duties, obligations, or liabilities of any other member of the audit committee or board of directors.



Audit Committee Charter



Our Audit Committee
Charter is available on our website at http://www.seabridgegold.net/governance.php, and is provided in Schedule A to the
AIF, which is attached as Exhibit 99.1 to this annual report on Form 40-F and incorporated by reference herein. The
Charter also is available in print to any shareholder that provides us with a written request. Requests for copies should be made
to the Secretary of our company at 106 Front Street East, Suite 400, Toronto, Ontario, Canada M5A 1E1, Telephone (416) 367-9292.



PRINCIPAL ACCOUNTING FEES AND SERVICES
– INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM



KPMG LLP acted as our
independent registered public accounting firm for the fiscal years ended December 31, 2016 and 2015. For a description of
the total amount billed by KPMG LLP to us for services performed in the last two fiscal years by category of service (audit fees,
audit-related fees, tax fees and all other fees), see Item 9 “Audit Committee Information - External Auditor Service Fees
(by Category)” in the AIF, which is attached as Exhibit 99.1 to this Form 40-F and incorporated by reference
herein.



AUDIT COMMITTEE PRE-APPROVAL POLICIES
AND PROCEDURES



For a description of
our pre-approval policies and procedures related to the provision of non-audit services, see Item 9 “Audit Committee Information-
Pre-Approval of Audit and Non-Audit Services Provided by Independent Auditors” in the AIF, which is attached as Exhibit
99.1 to this Form 40-F and incorporated by reference herein.



OFF-BALANCE SHEET ARRANGEMENTS



We do not have any
off-balance sheet financing arrangements or relationships with unconsolidated special purpose entities.



CODE OF BUSINESS ETHICS



We have adopted a Code
of Business Ethics (the “Code”) covering our executive officers and directors. The Code is available on our website
at http://www.seabridgegold.net/ManCorpPract.pdf and from our office at the address listed on the cover of this Form 40-F.



All amendments and
all waivers of the Code to the officers covered by it will be posted on our website, furnished to the SEC as required, and provided
to any shareholder who requests them. During the fiscal year ended December 31, 2016, we did not grant any waiver, including an
implicit waiver, from a provision of the Code to any executive officer or director.



CONTRACTUAL OBLIGATIONS





|($000's)                          | Payments due by period
|--------------------------------- | ----------------------
|                                  | Total                 
|Mineral interests                 | 4,183                 
|Business premises operating lease | 859                   
|                                  | 5,042                 





Amounts shown for mineral interests include option payments,
mineral lease payments and work





7









MINE SAFETY DISCLOSURE



Pursuant to Section
1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, issuers that are operators, or that have a subsidiary
that is an operator, of a coal or other mine in the United States are required to disclose in their periodic reports filed with
the SEC information regarding specified health and safety violations, orders and citations, related assessments and legal actions,
and mining-related fatalities under the regulation of the Federal Mine safety and Health Administration under the Federal Mine
Safety and Health Act of 1977. During the fiscal year ended December 31, 2016, we were not an operator, of a coal or other mine
in the United States.



NOTICES PURSUANT TO REGULATION BTR



We did not send any
notices required by Rule 104 of Regulation BTR during the fiscal year ended December 31, 2016 concerning any equity
security subject to a blackout period under Rule 101 of Regulation BTR.



INTERACTIVE DATA FILE



We are not currently
required to submit to the SEC, nor post to our corporate website, an Interactive Data File.



ADDITIONAL INFORMATION



Additional information
relating to us, including the Audited Financial Statements, the MD&A and the AIF, can be found on SEDAR at www.sedar.com, on
the SEC website at www.sec.gov, or on our website at www.seabridgegold.net. Shareholders may also contact the Secretary
of our company by phone at (416) 367-9292 or by e-mail at info@seabridgegold.net to request copies of these documents and
this annual report on Form 40-F.



CONTACTING THE BOARD



Shareholders, employees
and other interested parties may communicate directly with the Board by:



| | • |  | writing to: |  | Rudi Fronk
        Chairman and CEO
        Seabridge Gold, Inc.
        106 Front Street, East, 4th Floor
        Toronto, Ontario, Canada M5A 1E1
| | - |  | ----------- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------
| | • |  | calling:    |  | (416) 367-9292                                                                                                                                     
| | • |  | emailing:   |  | rudi@seabridgegold.net                                                                                                                             



UNDERTAKING AND CONSENT TO SERVICE OF
PROCESS



A.    Undertaking

We undertake 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.



B.   Consent to Service of Process

We have previously
filed with the SEC a written consent to service of process and power of attorney on Form F-X. Any change to the name or address
of our agent for service shall be communicated promptly to the SEC by amendment to the Form F-X referencing our file number.



8









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.





| | Seabridge Gold Inc.                 
| | ------------------------------------
| |                                     
| |                                     
| | By: /s/ Rudi P. Fronk               
| | Rudi P. Fronk                       
| | Chairman and Chief Executive Officer



Date: March 29, 2017





9









EXHIBITS



Consents

|23.1               |  | Consent of KPMG LLP, Independent Registered Public
    Accounting Firm                                                                           
|------------------ |  | -------------------------------------------------------------------------------------------------------------------------------------------------
|                   |  |                                                                                                                                                  
|23.2               |  | Consents of Tetra Tech Canada Inc. and John Huang, Sabry Abdel Hafez,  Hassan Ghaffari, Kevin
    Jones, Nigel Goldup                            
|                   |  |                                                                                                                                                  
|23.3               |  | Consent of Moose Mountain Technical Services and J. H. Gray                                                                                      
|                   |  |                                                                                                                                                  
|23.4               |  | Consent of W.N. Brazier Associates
    Inc. and Neil Brazier                                                                                     
|                   |  |                                                                                                                                                  
|23.5               |  | Consent of ERM Consultants Canada Ltd. and Rolf Schmitt                                                                                          
|                   |  |                                                                                                                                                  
|23.6               |  | Consent of Klohn Crippen Berger
    Ltd. and Graham Parkinson                                                                                    
|                   |  |                                                                                                                                                  
|23.7               |  | Consent of Resource Modeling Inc. and Michael Lechner                                                                                            
|                   |  |                                                                                                                                                  
|23.8               |  | Consent of McElhanney Consulting
    Services Ltd. and R.W. Parolin                                                                              
|                   |  |                                                                                                                                                  
|23.9               |  | Consent of BGC Engineering Inc. and Derek Kinakin                                                                                                
|                   |  |                                                                                                                                                  
|23.10              |  | Consents of Golder Associates
    Ltd. and Ross D. Hammett, Albert Victor Chance                                                                 
|                   |  |                                                                                                                                                  
|23.11              |  | Consents of Amec Foster Wheeler and Simon Allard, Mark Ramirez and Ignacy
    (Tony) Lipiec                                                      
|                   |  |                                                                                                                                                  
|23.12              |  | Consent of SRK Consulting (Canada) Inc. and Stephen Day                                                                                          
|                   |  |                                                                                                                                                  
|23.13              |  | Consent of William Threlkeld                                                                                                                     
|                   |  |                                                                                                                                                  
|                   |  |                                                                                                                                                  
|Certifications     |  |                                                                                                                                                  
|31.1               |  | Certification of Chief Executive Officer required by Rule 13a-14(a) or Rule 15d-14(a), pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 
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|31.2               |  | Certification of Chief Financial Officer required by Rule 13a-14(a) or Rule 15d-14(a), pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 
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|32.1               |  | Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
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|32.2               |  | Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
|Annual Information |  |                                                                                                                                                  
|99.1               |  | Annual Information Form for the year ended December 31, 2016                                                                                     
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|99.2               |  | Audited Financial Statements for the year ended December 31, 2016                                                                                
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|99.3               |  | Management’s Discussion and Analysis for the year ended December 31, 2016