Ottawa pulls seafood off its September 8 counter-tariff list within 24 hours of publishing it, then backfills the lost duty revenue with copper wire, charcoal and glass jars. The reversal is a case study in how retaliation lists get built, and how quickly they can break.
OTTAWA, August 29, 2026. Two days after the Government of Canada published a counter-tariff list covering more than 700 American goods, the Department of Finance quietly deleted roughly 250 fish and seafood tariff items from it, then added copper wire, wood charcoal, glass containers, plaster articles and printed photographs to keep the package at the same headline value of $27.6 billion.
The adjustment, confirmed by Finance Canada on Wednesday and expanded again on Friday, is the most consequential mid-course correction Ottawa has made to a retaliation package since the trade conflict with the United States reignited last week. It arrived before a single dollar of duty had been collected. The countermeasures do not take effect until 12:01 a.m. on Tuesday, September 8, 2026.
For Canadian importers, the episode is a reminder that a published counter-tariff list is a working document rather than a settled one. For the Atlantic seafood sector, it is a reprieve that arrived just in time.
What changed, and when
The sequence matters, because it explains how a measure designed to protect Canadian industry came within days of doing the opposite.
On Tuesday, August 25, Finance Minister Francois-Philippe Champagne announced that Canada would match new United States tariffs “dollar for dollar, rate for rate.” The measure applied counter-tariffs of 15, 25 and 50 per cent to American goods drawn from the categories targeted by United States Section 338 and Section 232 actions, with the Canadian rate on each product mirroring the corresponding American rate. The Department of Finance said the package covered $27.6 billion in imports from the United States and focused on steel, dairy, appliances, agricultural equipment, pulp and paper, and electronics.
The published tariff-item list, however, went considerably wider than those six headline sectors. Trade compliance advisers who worked through the schedule at the tariff-item level found beauty and personal care products, paper products, clothing, cooking appliances, and roughly 250 lines covering fish and seafood.
That last category set off alarms almost immediately in Atlantic Canada, and the reason has little to do with American exporters and a great deal to do with Canadian processing plants.
By Wednesday, August 26, Finance Canada said it was adjusting the list after receiving feedback from Canadian industry stakeholders. By Thursday, August 27, seafood and fish were formally out. On Friday, August 28, the department published a further set of additions, all at the 50 per cent rate: wood charcoal, including shell and nut charcoal; American copper wire; printed material including printed pictures and photographs; articles of plaster or of compositions based on plaster; and glass containers described in the customs tariff as carboys, bottles, flasks, jars, pots, phials and ampoules of a kind used for the conveyance or packing of goods, together with preserving jars, stoppers, lids and other closures made of glass.
A Finance Canada spokesperson framed the changes as consultation working as intended. “We’ve been working with and listening to stakeholders and provinces all throughout this process,” the spokesperson said in a statement reported by Global News. “That has informed our response and crucially helped us adjust our support measures to ensure our sectors and workers’ immediate needs and reality are acted on.” The department added that the decision “was made in the interest of strengthening Canada’s sectors and our tariff response, and to better match the American tariffs dollar for dollar, rate for rate.”
Champagne was blunter when asked about it by reporters on Thursday. Removing the seafood lines, he said, was “in Canada’s best interests.”
Why seafood was the wrong target
The case against tariffing American fish and seafood is a supply chain argument, not a diplomatic one.
Canada imports close to $1 billion worth of seafood from the United States each year, and roughly 40 per cent of that is lobster, according to figures cited by CTV News. Much of that lobster is not consumed in Canada as an American product. It is landed in Maine and Massachusetts, trucked north, and run through processing plants in Nova Scotia, New Brunswick and Prince Edward Island during periods when Canadian harvesters are not fishing.
Geoff Irvine, executive director of the Lobster Council of Canada, put a number on it in an interview with CTV Atlantic. “We buy about $400 million worth, give or take, of U.S. lobster every year to process in our processing plants in Eastern Canada when there is not a lot of harvesting here,” he said.
A 25 per cent Canadian duty on that flow would not have penalized an American competitor. It would have raised the input cost of a Canadian processing industry that depends on year-round throughput to keep plants staffed and lines running. The plants in question are among the largest private employers in a number of coastal communities where alternative work is scarce.
Irvine had also flagged the second-order risk in earlier interviews, warning that Canadian retaliation on seafood invited an American response in kind. “The worry is that fish and seafood will now be targeted by American tariffs,” he said, a concern that carries weight given that the United States is by far the largest export market for Canadian lobster, snow crab and groundfish.
Gilles Theriault, former president of the New Brunswick Crab Processors Association, described the mood after the reversal simply. “The whole Atlantic fisheries industry is relieved that this tariff has been taken away from the list,” he said.
At the wharf in Eastern Passage, Nova Scotia, the reaction was more measured. Jason Purdy, who has fished lobster, halibut and swordfish for 35 years, told CTV News he woke Thursday to long-awaited good news, but was frank about the broader picture. “We are looking for reasons to fight and bicker with each other about things that we shouldn’t have to fight and bicker about,” he said.
Purdy also made a point that is easy to lose in the Ottawa framing. The Nova Scotia fishing and seafood export industry generates roughly $8.5 billion annually, and much of it has spent the past several years reducing its dependence on the American market. “We have been sourcing new markets the last few years, because we can’t have everything dependent on our product going to the United States,” he said. He added that the removal of the counter-tariff does not resolve the sector’s cost pressures. “The high cost of diesel and bait is putting a strain on everything now, and some costs have doubled.”
The backfill, and what it says about the arithmetic
Ottawa’s decision to add copper wire, charcoal, glass containers, plaster articles and printed photographs is the part of the story most likely to catch Canadian importers by surprise, because these are not sectors that featured anywhere in the original political messaging.
The logic is arithmetic. The government committed publicly to matching the American action dollar for dollar. Removing roughly 250 seafood tariff items removed a meaningful slice of import value from the package. To hold the $27.6 billion total, Finance Canada had to find replacement trade flows of comparable size, and it had to find them fast.
The replacements share a useful characteristic from a policy standpoint: they are goods for which Canadian or non-American supply is generally available, or for which the domestic user base is diffuse enough that no single sector absorbs a concentrated shock. Copper wire is a globally traded commodity with multiple non-American sources. Charcoal is largely a consumer good. Printed photographs and plaster articles are low-value, low-volume categories.
Glass containers are the exception, and the one worth watching. Canadian food processors, breweries, distilleries, cosmetics manufacturers and specialty preserve producers rely heavily on imported glass packaging, and North American glass container capacity is concentrated in a relatively small number of plants. A 50 per cent duty on jars, bottles, flasks and closures of a kind used for packing goods will land on Canadian manufacturers as an input cost, not on American exporters as a market-access penalty. It is precisely the structural problem that got seafood removed, transposed to a different product category.
Whether that draws a second round of stakeholder feedback is one of the more concrete questions facing Finance Canada between now and September 8.
The wider package
The seafood reversal sits inside a much larger set of measures announced on August 25 and worth reviewing in full, because most Canadian businesses will be affected by the parts that did not change.
The counter-tariffs respond to a United States decision to impose a 50 per cent tariff on $27.6 billion of Canadian goods effective August 22, 2026, following the collapse of bilateral negotiations on Friday, August 21. The Government of Canada said it had negotiated “intensively and in good faith” toward a comprehensive agreement, but that in recent days the American side “proposed new terms that were not in Canada’s best interest, basically, asking too much of Canada, and offering too little in return.” Ottawa suspended negotiations rather than accept what it called a bad deal.
The White House characterized the same sequence differently, saying the United States had offered Canada “the most preferential market access of any country on Earth” and that Canada responded with “unreasonable demands, talk-backs, and flat-out rejection.”
Alongside the counter-tariffs, Ottawa announced a $7.5 billion package of new and enhanced support measures, building on what the government describes as nearly $25 billion in supports already provided since American tariffs began. The package includes an additional $1.5 billion through the Regional Tariff Response Initiative delivered by the regional development agencies; a new $500 million liquidity stream under the Business Development Bank of Canada’s Pivot to Grow program; a lowering of the BDC minimum revenue threshold for tariff-related programs to $1 million; $2 billion through a new Canada Strong Diversification Fund for shovel-ready capital maintenance projects; and $3.5 billion in Rapid Response Supports for Workers and Employers, including extended Employment Insurance flexibilities and a new Worker Retention and Retraining Program. New flexibilities were also added to the Large Enterprise Tariff Loan facility administered by the Canada Enterprise Emergency Funding Corporation.
Champagne tied the two halves together in his statement. “When the United States asked too much and offered too little, we chose to stand up for Canadians,” he said. “Our dollar-for-dollar, rate for rate counter-tariffs as well as a multi-billion dollar support package will protect workers, farmers, families, and businesses as we build a stronger, more resilient, and more diversified Canadian economy.”
Industry Minister Melanie Joly framed the response in investment terms. “In a more uncertain world, Canada will continue to invest in our greatest strengths: our workers, our businesses, and our capacity to compete,” she said.
What importers need to do before September 8
Trade compliance practitioners have been unusually direct about the operational work required in the ten days remaining, and the seafood episode has added a layer of documentation risk on top of it.
Origin is the threshold question. The counter-tariffs apply only to goods originating in the United States, and Canada determines origin for this purpose using the Determination of Country of Origin for the Purpose of Marking Goods (CUSMA Countries) Regulations. Goods that transit the United States but originate elsewhere are outside the measure. Goods marked as American are inside it.
There is a stacking trap for non-qualifying goods. GHY International, the Winnipeg-based customs brokerage, warned in a client update that a product of American origin that does not qualify under CUSMA may face both the Most-Favoured-Nation rate and the new countermeasure duty. Confirming CUSMA eligibility is therefore not a paperwork nicety; it is the difference between one duty and two.
Classification must be done at the tariff-item level. The government’s published list identifies affected products by Canadian tariff item, HS heading, description and applicable rate, and it must be read alongside the Schedule to Canada’s Customs Tariff. Broad category labels are unreliable. A firm that concluded on Tuesday that it was exposed because “seafood” appeared on the list, and a firm that concluded on Tuesday that it was safe because “glass” did not, would both have been wrong by Friday.
Goods in transit on September 8 are exempt. Importers with shipments moving across the border around the effective date should retain documentation supporting shipment status and timing, because that paperwork is what converts the exemption from a policy statement into a duty saving.
Remission relief carries over, and should be claimed at entry. Pending Governor in Council approval, the government intends the new counter-tariffs to benefit from remission in line with existing relief. Product-specific and company-specific remission implemented under the United States Surtax Remission Order will apply to the new measures according to the terms of that order. GHY offers the worked example: steel goods currently eligible for remission of the 25 per cent tariff would benefit from relief of the 50 per cent tariff. For goods not already covered, Finance Canada continues to accept remission requests under the United States Remission Framework, which contemplates relief where inputs cannot be sourced domestically.
The brokerage’s most practical advice concerns timing. Where remission is available, apply it at the time of entry rather than paying the counter-tariff and filing for a refund afterward. Refund claims can take several months to process, which is a cash flow problem for any importer running on thin working capital.
Existing counter-tariffs, including those on American automobiles, remain in place and are not replaced by the new package. The Canada Border Services Agency is expected to issue further administrative guidance through Customs Notices.
Reading the reversal
There are two ways to read what happened this week, and both are defensible.
The critical reading is that Ottawa published a list it had not fully stress-tested against Canadian supply chains, and had to correct it under industry pressure within 48 hours. Retaliation lists are assembled quickly, often by matching import values against a target number, and matching by value does not reveal which lines represent finished consumer goods and which represent inputs to Canadian production. Seafood was on the list because the arithmetic worked, not because the industrial logic did.
The generous reading is that the correction happened before the measure took effect, at no cost to any importer, and that the government treated stakeholder feedback as decisive rather than defensive. Champagne’s framing on Thursday emphasized exactly that. “My job is to fight for Canada, my job is to fight for Canadians, my job is to fight for Canadian business, to fight for Canadian industry, to fight for Canadian fishers,” he said. “Those are the ones that I listen to, and that’s why we said if we need to update the list, we do it.”
Both readings point to the same operational conclusion for Canadian business. The list is live. It has changed twice in four days. Firms with material exposure should be monitoring the Department of Finance page and the CBSA Customs Notices daily until September 8, not relying on a classification exercise completed early in the week.
What to watch
Three things over the next two weeks.
First, whether the glass container lines survive. If Canadian food processors and beverage manufacturers make the same input-cost case that the lobster processors made, and make it quickly, a second amendment before September 8 is plausible.
Second, whether the United States responds to the seafood exemption at all. Ottawa’s decision removes a friction point for American fishermen and processors as well as Canadian ones, and Maine’s congressional delegation had been vocal about the risk. Senator Angus King had warned that nearly half of Maine’s fall lobster catch goes to Canada for processing, with some returning south afterward, meaning the same animal could be taxed in both directions.
Third, whether the broader negotiation restarts. Foreign Affairs Minister Anita Anand said Friday that Canada would continue working with American counterparts on bilateral files including Arctic security, regional security in Haiti and cyber scam centres, while trade negotiators “defend Canadian interests.” That is not a signal that trade talks are resuming, but it is a signal that Ottawa is keeping other channels open.
For Canadian importers, exporters and the brokers who serve them, the working assumption through the first week of September should be that the September 8 package is close to final but not final, that classification and origin work needs to be redone against the current published list rather than the Tuesday version, and that remission claims filed at entry are worth considerably more than refund claims filed later.