Gitxsan Chiefs Pull Support for Seabridge's KSM Mine

The Gitxsan Huwilp Government formally withdrew its longstanding support for Seabridge Gold’s KSM project in northwestern British Columbia on August 13, 2026, in solidarity with the Tsetsaut Skii km Lax Ha Nation over a planned 52-storey-deep tailings pond.

The Gitxsan Huwilp Government has formally pulled its longstanding support for the KSM project in northwestern British Columbia, one of the largest undeveloped gold-copper assets held by Seabridge Gold (NYSE: SA) (TSX: SEA). The decision, taken unanimously by Gitxsan Huwilp Hereditary Chiefs, was delivered on August 13, 2026 to provincial and federal government officials and to the company itself.

The Gitxsan did not frame the withdrawal as a dispute about their own territory. They framed it as solidarity with a neighbouring nation. The Tsetsaut Skii km Lax Ha Nation, known as TSKLH, has been pressing for what it considers meaningful consultation about the environmental risks a planned tailings facility — described by the Gitxsan as a 52-storey-deep toxic waste pond — would pose to waterways running through TSKLH traditional territory.

What the Hereditary Chiefs actually said

The statement from Gitxsan Huwilp Government Co-Chairs Gwiiyeehl – Brian Williams (Gigeenix) and Moolaxan – Norman Moore (Gyeets) is worth reading closely, because it sets out a standard that is broader than any single permit.

We stand with our neighbour, Tsetsaut Skii km Lax Ha, in calling on the Crown and Seabridge to collaboratively and meaningfully consult with all First Nations about major projects on our traditional lands, particularly where there is risk of environmental damage that could last generations.

The Co-Chairs added that Gitxsan Hereditary Chiefs are looking “far beyond the court order to real economic partnerships with collaboration and shared decision-making,” and that First Nations are essential to how such projects proceed. That reference to a court order is the tell: the Chiefs are signalling that legal minimums are not the benchmark they intend to be measured against, and that a company clearing a judicial or regulatory bar is not the same thing as a company holding social licence.

The full statement was carried by INN Precious Metals.

Why a tailings pond is the flashpoint

Tailings are the ground-up rock and process water left over once the valuable metal has been separated out. At a project the scale of KSM, that waste has to be stored behind engineered embankments, effectively in perpetuity, and the containment structure becomes the single largest long-lived liability on the site. Describing the facility in terms of building storeys — 52 of them, in depth — is a deliberate rhetorical choice by the Chiefs, but it communicates the point that regulatory documents usually bury: this is infrastructure that outlives the mine, the permit and the operator.

Downstream water is where opposition to large tailings storage in British Columbia has consistently concentrated. The Gitxsan objection is not that the mine sits on their land; it is that the consequences of a containment failure would not respect the territorial boundary the consultation process drew. That argument, if it gains traction with regulators, is harder for a proponent to address than a conventional impact-benefit negotiation, because it widens the set of parties whose agreement matters.

The permitting arithmetic gets harder

For a development-stage company, the practical currency is not just resource ounces but the credibility of a permitting timeline. Support from affected First Nations is one of the inputs that lenders, joint-venture partners and strategic investors underwrite when they assess how long a project needs before it can pour metal. A formal, unanimous withdrawal of support from a neighbouring nation — delivered simultaneously to Victoria, Ottawa and the company — introduces an item that has to be disclosed, explained and resolved.

Nothing in the Gitxsan statement halts anything by itself. Hereditary Chiefs are not a permitting authority. But the letter puts the onus on the Crown, at both the provincial and federal level, to demonstrate that its consultation with TSKLH was adequate. Where that question has been contested in British Columbia before, the resolution has tended to be slow, and slowness is the expensive part for a company that carries a large asset and no production revenue.

How the shares are trading

Seabridge Gold’s New York-listed shares changed hands at 33.33 as of 16:33 GMT on August 20, 2026, down 0.66% from a previous close of 33.55, with an intraday range of 32.75 to 34.27. The Toronto line was quoted at 19.74, off 0.25% from 19.79 and trading in a tight 19.62 to 19.80 band. The market data feed supplied for both listings does not specify the quote currency, so the levels are given as reported.

Both moves sit inside the day’s broad market drift rather than standing apart from it. The S&P 500 tracker (SPY) was down 0.46% at $765.52, the Nasdaq 100 tracker (QQQ) fell 0.67% to $711.25, and the Dow tracker (DIA) dropped 0.86% to $529.69. On the evidence of a single session, equity investors have not repriced KSM’s permitting risk in any dramatic way — which is itself a familiar pattern with consultation disputes, where the cost shows up as schedule slippage over quarters rather than as a one-day gap in the share price.

What to watch from here

Three things will determine whether this becomes a footnote or a genuine obstacle. First, whether the B.C. and federal governments respond substantively to the August 13 letter, or treat existing consultation as complete. Second, whether Seabridge opens a direct process with TSKLH on the tailings design and downstream water monitoring, since the Gitxsan position explicitly ties its own support to TSKLH being heard. Third, whether other neighbouring nations follow the Gitxsan lead — solidarity withdrawals are cheap to issue and cumulatively expensive to resolve.

The Co-Chairs’ framing leaves an opening. They spoke of economic partnerships and shared decision-making, not of stopping development outright. That is an invitation to negotiate rather than a veto, and how quickly the Crown and the company take it up will say more about KSM’s timeline than any single day of trading.

Key facts

• Seabridge Gold (NYSE: SA): 33.33, -0.66%, as of 16:33 GMT Aug 20, 2026
• Toronto listing (TSX: SEA): 19.74, -0.25%, day range 19.62–19.80
• Date of withdrawal letter: August 13, 2026, delivered to provincial and federal officials and Seabridge
• Core objection: Planned 52-storey-deep tailings pond and risk to TSKLH territory waterways

Frequently asked questions

What did the Gitxsan Huwilp Government decide?

Its Hereditary Chiefs voted unanimously to withdraw the Gitxsan Huwilp Government’s longstanding support for Seabridge Gold’s KSM mine in northwestern British Columbia. The decision was delivered in writing on August 13, 2026 to provincial and federal government officials and to Seabridge Gold itself, and was framed as an act of solidarity with the neighbouring Tsetsaut Skii km Lax Ha Nation.

Why is the tailings facility the central issue?

The Chiefs object to a planned tailings pond described as 52 storeys deep, arguing it poses environmental risk to waterways on Tsetsaut Skii km Lax Ha traditional territory. Tailings are the waste rock and process water left after metal extraction; the containment structure holding them must remain stable long after mining ends, making it a multi-generational liability.

Does this stop the KSM project?

No. Hereditary Chiefs are not a permitting authority and the withdrawal does not by itself halt construction or revoke approvals. Its effect is political and procedural: it presses the Crown to show that consultation with the Tsetsaut Skii km Lax Ha Nation was adequate, a question that in British Columbia has historically taken time to resolve.

How did Seabridge Gold shares react?

Seabridge’s New York line traded at 33.33 as of 16:33 GMT on August 20, 2026, down 0.66% from a prior close of 33.55. The Toronto listing was at 19.74, down 0.25%. Both moves were in line with a broadly lower market that day, suggesting no dramatic repricing of permitting risk in a single session.

What did the Gitxsan Co-Chairs ask for?

Co-Chairs Gwiiyeehl – Brian Williams (Gigeenix) and Moolaxan – Norman Moore (Gyeets) called on the Crown and Seabridge to consult collaboratively and meaningfully with all First Nations about major projects on traditional lands, especially where environmental damage could last generations. They also said Chiefs are looking beyond the court order toward real economic partnerships and shared decision-making.

What should investors watch next?

Three markers: whether B.C. and federal officials respond substantively to the August 13 letter or treat consultation as already complete; whether Seabridge opens direct engagement with the Tsetsaut Skii km Lax Ha Nation on tailings design and water monitoring; and whether other neighbouring nations issue similar solidarity withdrawals that compound the resolution timeline.

Sources

• Gitxsan Huwilp Government Withdraws Support for KSM Mine in Solidarity with Tsetsaut Skii km Lax Ha Nation: Calls on B.C. Government and Seabridge for True Consultation — INN Precious Metals

Photo: Ali Kazal · Pexels Licence — source