Seabridge Gold updates KSM ‘substantially started’ review

Seabridge Gold Inc. (SA) reports an update from British Columbia’s Environmental Assessment Office on the reconsideration of the Substantially Started Designation (SSD) for its KSM Project in northwest BC.

Available on EDGAR 09/22/2026 - 12:46 PM EDT Accepted by SEC EDGAR 09/22/2026 - 12:46 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Seabridge Gold Inc. (SA) reports an update from British Columbia’s Environmental Assessment Office on the reconsideration of the Substantially Started Designation (SSD) for its KSM Project in northwest BC. The SSD, originally granted on July 24, 2024, is being reconsidered following a court-directed additional consultation period with the Tsetsaut Skii km Lax Ha. This 90-day consultation period concludes on September 28, 2026, after which Seabridge will be given an opportunity to respond to submissions. The EAO plans to draft a report, share a review draft with Seabridge and Indigenous groups, and then make a recommendation to the decision-maker for a renewed determination on whether KSM remains substantially started.

Key Figures

Consultation period length: 90 days SSD originally granted: July 24, 2024 Court ruling date: June 8, 2026 +2 more

5 metrics

Consultation period length 90 days Court-directed consultation with the Tsetsaut Skii km Lax Ha before SSD reconsideration

SSD originally granted July 24, 2024 Date KSM Project received its Substantially Started Designation

Court ruling date June 8, 2026 Supreme Court of British Columbia ruling requiring SSD reconsideration process

Consultation end date September 28, 2026 Scheduled conclusion of the 90-day consultation period

Interest in KSM Project 100% Seabridge Gold’s interest in its principal KSM Project

Key Terms

Substantially Started Designation, Environmental Assessment Office, consultation period, decision-maker, +1 more

5 terms

Substantially Started Designation regulatory

"status of the reconsideration of the Substantially Started Designation ("SSD")"

Environmental Assessment Office regulatory

"British Columbia's Environmental Assessment Office ("EAO") has updated Seabridge"

An environmental assessment office is a government or regulatory unit that reviews proposed projects to judge their likely effects on air, water, land and wildlife, and decides whether extra studies, changes or approvals are needed. For investors, its decisions act like a permit or safety check for a project — they can change timelines, add costs, or create legal conditions that affect whether a development or operation can proceed and how profitable it may be.

consultation period regulatory

"required the EAO to commence a reconsideration of the SSD following an additional 90-day consultation period"

decision-maker regulatory

"The EAO will then make a recommendation to the decision-maker"

Golden Triangle technical

"KSM and Bronson Corridor projects in British Columbia's Golden Triangle"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Seabridge Gold Inc. (SA) announce about the KSM Project SSD review?

Seabridge Gold announced that British Columbia’s Environmental Assessment Office is progressing the court-directed reconsideration of the KSM Project’s Substantially Started Designation, with a defined consultation phase, report drafting, stakeholder review, and a renewed determination by the decision-maker.

When does the consultation period for Seabridge Gold’s (SA) KSM SSD reconsideration end?

The 90-day consultation period with the Tsetsaut Skii km Lax Ha related to the KSM Project’s SSD reconsideration concludes on September 28, 2026, after which Seabridge Gold will be given an opportunity to respond to the submissions received.

Why is the KSM Project’s Substantially Started Designation being reconsidered?

The KSM Project’s SSD, granted on July 24, 2024, is being reconsidered after a challenge by the Tsetsaut Skii km Lax Ha and a June 8, 2026 ruling of the Supreme Court of British Columbia requiring additional consultation and a renewed determination process.

What steps will follow the consultation period for Seabridge Gold’s (SA) KSM SSD?

After the consultation period, the EAO will allow Seabridge Gold to respond, then draft a report on the SSD reconsideration, circulate a draft to Seabridge and Indigenous groups, and then provide a recommendation to the decision-maker for a new substantial start determination.

How does Seabridge Gold describe the EAO’s approach to the KSM SSD process?

Seabridge Gold’s Chair states that the EAO’s letter recognizes the importance of a timely decision and that the EAO will strive to complete the SSD reconsideration process as efficiently as possible, while fulfilling its duty to consult and ensuring the decision is transparent and well-informed.

Which Indigenous Nations does Seabridge Gold mention in relation to the KSM Project?

Seabridge Gold mentions the Tsetsaut Skii km Lax Ha in relation to the SSD challenge and consultation, and also thanks the Nisga’a and Tahltan Nations for their continued support of KSM and a renewed SSD, as expressed in letters submitted to the EAO.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER
THE SECURITIES EXCHANGE ACT OF 1934

For the month of September 2026

Commission File Number 1-32135

SEABRIDGE GOLD INC.
(Name of Registrant)

106 Front Street East, Suite 400, Toronto, Ontario, Canada M5A 1E1
(Address of Principal Executive Office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F [   ]          Form 40-F [X]

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	Seabridge Gold Inc.
	(Registrant)
	By:	/s/ Gregory Martin
	Name:	Gregory Martin
	Title:	Chief Financial Officer
Date: September 22, 2026

EXHIBITS

Exhibit		Description
99.1		News Release dated September 22, 2026

News Release

Trading Symbols:	TSX: SEA	For Immediate Release
	NYSE: SA	September 22, 2026

Substantially Started Designation Review on Seabridge Gold's

KSM Project Being Progressed by BC's EAO Office

Toronto, Canada - Seabridge Gold Inc. ("Seabridge" or the "Company") (TSX:SEA) (NYSE:SA) reported today that British Columbia's Environmental Assessment Office ("EAO") has updated Seabridge on the status of its reconsideration of the Substantially Started Designation ("SSD") for its KSM Project in Northwest BC. The EAO's letter to Seabridge is linked here.

KSM received its SSD on July 24, 2024. The SSD was subsequently challenged by the Tsetsaut Skii km Lax Ha ("TSKLH") before the Supreme Court of British Columbia and the Court's ruling on June 8, 2026 required the EAO to commence a reconsideration of the SSD following an additional 90-day consultation period with the TSKLH. The 90-day consultation period concludes on September 28, 2026.

The EAO's letter advises that "Following the conclusion of the consultation period - at 90 days or, if agreed-upon between the EAO and TSKLH, shortly thereafter - the EAO will provide Seabridge Gold with an opportunity to respond to the TSKLH submissions." It also states "The EAO will then draft a report regarding the substantial start reconsideration in light of the court findings and any relevant new information received. An opportunity to review that draft report will be provided to Seabridge, TSKLH, and other Indigenous Groups. The EAO will then make a recommendation to the decision-maker, and the decision-maker will reconsider the substantial start determination."

Seabridge Chair Rudi Fronk noted that the EAO's letter "recognizes the importance of a timely decision for Seabridge Gold and will strive to complete the process as efficiently as possible, while fulfilling its duty to consult and ensuring that any decision is transparent, well-informed, and durable."

"We appreciate the measured and thoughtful response of the EAO, and we look forward to a full resolution of this matter. We also thank the Nisga'a and Tahltan Nations for their continued support of KSM and a renewed SSD, as articulated in recent letters submitted to the EAO," said Mr. Fronk.

About Seabridge Gold

Seabridge Gold holds a 100% interest in several North American gold projects. Its principal assets are the KSM and Bronson Corridor projects in British Columbia's Golden Triangle. Additional projects include Snowstorm in Nevada's Getchell Gold Belt, and the 3 Aces project in the Yukon. Further information on Seabridge's mineral reserves and resources is available at www.seabridgegold.com.

Neither the Toronto Stock Exchange, New York Stock Exchange, nor their Regulation Services Providers accepts responsibility for the adequacy or accuracy of this release.

ON BEHALF OF THE BOARD

"Rudi Fronk"

Chair & C.E.O.

For further information please contact:

Rudi P. Fronk, Chair and C.E.O.

Tel: (416) 367-9292  •  Fax: (416) 367-2711

Email:  info@seabridgegold.com

106 Front Street East, Suite 400, Toronto, ON M5A 1E1, Canada

416-367-9292   www.seabridgegold.com

Filing Exhibits & Attachments

1 document

Press Releases

• EX-99.1 EXHIBIT 99.1 6.4 KB