Commerce Department Anti-Dumping Ruling on Imported Dry Vans Offers Relief to Domestic Trailer Manufacturer Wabash

The Analysis

The notice has a date on it, so that is where I will start. In the week before 10 June 2026 the Commerce Department published a pair of Federal Register notices setting preliminary countervailing duty rates on van-type trailers from China and Mexico. The Chinese rates run from 82.3 percent to 128.7 percent depending on the exporter, with the largest of them assessed against CIMC. The Mexican rates are exporter-specific as well and come in at under 2 percent. The petition behind all of it was filed by the American Trailer Manufacturers Coalition, a three-company group made up of Wabash National, Great Dane and Stoughton Trailers, and its argument, which Commerce has now accepted at the preliminary stage, is that both governments unfairly subsidise their van-type trailer industries.

Strictly speaking, what landed was the countervailing duty side of the case. The antidumping side is a separate track with its own legal test, its own rate calculation and, on the reporting available to me, its own timetable: the coalition's own statement refers to Commerce's antidumping preliminary determination as something still expected later in the summer. Two tracks, two sets of numbers, and a real chance that a second deposit obligation shows up on entries that are already carrying the first. If you have been working from a single figure, that is the correction to make first, and it is one you can make today without waiting for anyone.

The timetable is the part worth holding in your head, because it is unusually legible for a trade case. The Chinese final determination is expected around mid-August. The International Trade Commission's injury investigation is expected to be completed around mid-October. The Mexican final is expected around mid-December. That is a six-month arc, and the October date quietly governs all of it: a negative injury determination at the Commission ends the proceeding no matter how large the Commerce rates are. My own observation, having watched a good many of these run, is that companies build their plans around the rate and then discover too late that the rate was never the binding condition.

Let me be precise about what a preliminary countervailing duty determination actually does, because the word does a lot of unearned work in conversation. It is not a final liability. It is a rate at which, on the reporting available, Customs and Border Protection will require importers of both finished and semi-finished vans to begin posting a cash deposit. The deposit attaches on entry; the amount actually owed is fixed later, at the final rate. If the final rate lands below the deposit rate the excess is trued up; if it lands above, the additional amount is due. The reporting is explicit that the final rate could be more or less than the preliminary one. So the cash you are about to post is a cash-flow event with a range attached to it, not a settled bill, and anyone booking it as a known cost is booking something that does not exist yet.

The distinction between the two tracks is not pedantry, and it is worth a paragraph. A countervailing duty answers the question of whether a foreign government subsidised the producer. An antidumping duty answers a different question, which is whether the producer sold below normal value. The two are investigated together in the same proceeding, they produce separate rates, and they are both capable of applying to the same entry at the same time. The published reporting on this case describes the notices as countervailing duty findings and quotes the petitioner as looking forward to the antidumping preliminary determination later in the summer. What I take from that is narrow and practical: there may be a second number, on a second date, attaching to the same units. Any model that has room for one layer of duty and no room for two is incomplete by design.

Now to the condition that decides whether any of this survives. Commerce calculates rates; the International Trade Commission decides whether the domestic industry has been injured by the imports. On the reporting, the Commission's investigation is expected to be completed around mid-October, and it is described as likely to be the prevailing decision for all of the countries in the case. That is the sentence I would underline. A preliminary rate of 82.3 percent is dramatic and a preliminary rate of 128.7 percent is more dramatic still, but neither of them imposes anything permanent if the Commission answers the injury question the other way in October. I am not going to predict how the Commission answers. What I will say is that a plan built entirely around the Commerce rates, with no scenario for the October outcome, is not a plan. It is a single scenario wearing a plan's clothes.

The next question is the one that decides whether any of this reaches you at all, and it is scope. The question is not where your seller is incorporated and it is not what the commercial invoice calls the thing. The question is whether the product falls within the description in the notices. The published reporting is specific enough on one point to be worth repeating: the deposit obligation described by trade attorneys familiar with the matter covers both finished and semi-finished vans. That single phrase, semi-finished, closes the door on the most obvious workaround. Buying subassemblies and completing them on this side of the border is a structure people reach for in every trade case I have read, and in this one the reporting puts it inside the perimeter.

The Canada episode is the cautionary tale attached to that point. The coalition originally filed against Canadian imports as well. What happened instead is that Commerce treated finished trailers exported from Canada as subject to the Chinese rates, because subassemblies of Chinese origin are sent to Canada for final assembly. With that in hand, the coalition withdrew the Canadian portion of its request. Read that twice. Assembled in Canada did not take the goods out of the Chinese rate, and the petitioner concluded it no longer needed a separate Canadian case. If your supply chain runs through a third country for a final bolt-up operation, the country named on the export documents is a fact about the last operation performed. It is not a fact about origin. Strictly speaking those are two different questions, and only one of them sets your rate.

The rates are exporter-specific, and that is a second precondition people collapse by accident. A range of 82.3 to 128.7 percent is not a range you get to choose inside. Each exporter has its own number, and the largest in this case was assigned to CIMC. A corporate group is not automatically a single exporter for this purpose, and a change of trading entity in the middle of a replacement programme is a change you want to make deliberately, on advice, with the paperwork showing why. The failure mode I have seen is rarely anything improper. It is a procurement team re-sourcing from a sister company because the first one was out of build slots, and nobody telling the compliance function that the legal name on the invoice changed.

On timing, I want to be careful, because this is exactly where a confident sentence does damage. The published reporting says Customs will require importers to begin posting deposits immediately at the preliminary rates. What it does not give me is the entry-date language inside the notices themselves, and I am not going to recite an effective date I have not read. If you have vans on the water, or finished units sitting at a plant awaiting release, the applicable date is the one set out in the Federal Register notice for the relevant country, and the only responsible instruction is to pull that notice and read its own words. Anyone who tells you the trigger date without having the notice in front of them is guessing, and a guess about entry dates is the kind of error that resurfaces as an unbudgeted bill long after the people who made it have moved on.

Then there is stacking, and here the reporting is concrete. The countervailing duties are levied on top of Section 301 duties that have been in effect since May 2019 at 25 percent. They do not replace them. So the arithmetic on an affected unit is entered value, plus the Section 301 duty, plus the countervailing rate, and potentially plus an antidumping rate once that track produces its own preliminary finding. Three layers, each with its own base and its own trigger, and the order in which you apply them changes the answer. If your landed-cost model has a single line called duty, it is not capable of representing this, and it will fail silently rather than loudly.

Let me put numbers on it, with the assumptions stated up front because none of the prices here came from the source. Assume a domestically built dry van at 42,000 dollars and an imported unit entering at 30,000 dollars before any duty. Assume the Section 301 duty applies at the 25 percent rate the reporting cites, and that the countervailing duty is applied to entered value. On those assumptions the imported unit lands at 37,500 dollars before any countervailing duty. At the low end of the reported Chinese range, 82.3 percent, the countervailing duty is 24,690 dollars and the unit lands at 54,690 dollars.

That is 45.8 percent above the 37,500 dollars it would have cost with Section 301 alone, and it is 12,690 dollars more than the 42,000 dollar domestic unit on my assumed prices. At the top of the reported range, 128.7 percent, the duty is 38,610 dollars and the unit lands at 68,610 dollars, which is 83 percent above the Section 301-only figure. Now the Mexican rate, which the reporting puts at under 2 percent: assume 1.5 percent, and the duty on the same 30,000 dollar unit is 450 dollars, landing at 37,950 dollars, still 4,050 dollars below my assumed domestic price.

One comparison worth making, because it tells you something about the coverage you have been reading. The estimate carried in the material I was given is that final duties would raise foreign-built trailer prices by 30 to 50 percent. My 82.3 percent case produces a 45.8 percent increase over the Section 301-inclusive price and sits inside that band. My 128.7 percent case produces 83 percent and sits well outside it. Both are arithmetic on the same assumed prices from the same reported rates. That is the entire point: the range is wide enough that no single planning number survives contact with it, and the 30 to 50 percent figure is an estimate about market prices rather than a promise about your invoice.

Scale it, again on my own assumptions. Take a fleet that replaces 200 vans a year and sources all of them from Chinese-origin supply. At 82.3 percent the incremental cost against the Section 301-only baseline is 200 times 17,190 dollars, or about 3.44 million dollars a year. At 128.7 percent it is 200 times 31,110 dollars, or about 6.22 million dollars. If instead that fleet sourced from Mexico at my assumed 1.5 percent rate, the incremental cost on the same volume is 90,000 dollars. The gap between 3.44 million and 90,000 dollars is not a rounding difference. It is the difference between absorbing a cost and redesigning a capital plan, which is why the sourcing question has now become the capital question.

Two more figures from the record, used carefully. The coalition's estimate is that China, Mexico and Canada together supply about 40 percent of the US van trailer market. Its summation of import data puts US van trailer imports at roughly 48,000 units a year between 2015 and 2017, and at an annual average of 80,600 units between 2022 and 2024. Do not divide one by the other. The 40 percent is a share of a market; the 80,600 is a count of imports. They have different denominators, and I have not seen the underlying dataset, so any ratio you build from them is your construction and not the coalition's finding. What the pair does establish, and this is enough to act on, is that the import channel grew substantially between those two periods and now carries a large share of supply. A duty shock on a channel that size is a supply question before it is a price question.

Translated into the four things you actually manage. On cost, the deposit is a working-capital item that starts on the first affected entry and ends when the rate is finalised, so the worst of the cash pressure arrives before the number is known. On lead time, the practical effect of a mid-August China final and a mid-December Mexico final is that the two origins do not become certain at the same moment, and a sourcing decision that requires certainty has to wait for whichever date governs it. On compliance, the exposure is scope and origin documentation rather than anything exotic. On inventory, the live decision is whether to pull orders forward into whatever window remains before the deposit obligation attaches, and that decision has a real downside: pulling orders forward into a window you have not confirmed is how a duty question becomes a much larger inventory question.

There is a fact about the petitioner that belongs in the file, handled carefully. S&P Global cut its rating on Wabash to B- from B in the week before the findings, matching a Moody's downgrade to B3 the previous month, which was that agency's third reduction in a year. S&P Global also said countervailing duties may be somewhat beneficial for Wabash over the next several years, and noted that as demand rebounds, related working capital spending will increase and liquidity will weaken somewhat in 2026 and 2027.

What that establishes is a fact about the financial condition of one domestic supplier. What it does not establish is anything about your duty rate, and I am not going to turn a credit rating into a procurement recommendation. It is relevant to one narrow question: whether the domestic capacity you may need to shift into is going to be there when you need it. That is a counterparty question, and it is legitimate to ask it on the strength of a published rating.

One structural point about what happens after a final order, because it changes how you should think about the numbers. An order is not a one-off figure. It sets an annual cycle in which the actual duty rate for a past period is recalculated on review, which means the rate applicable to you can move again after the final determination, in either direction, on an annual rhythm. I am deliberately not giving you the section numbers or the petition windows for that process, because I have not verified them against the notices and I would rather you take them from the notice or from counsel than from me. The practical consequence is that this is a multi-year obligation rather than a one-quarter event, and your record-keeping horizon has to be sized to match.

I also want to flag something the reporting does not say. It does not mention critical circumstances, and it does not mention retroactivity, and I am therefore not going to raise either as a risk. There is a temptation in this kind of writing to list every bad thing that could theoretically happen, and it produces a document that frightens people and informs nobody. If a retroactive element appears, it will appear in the notices, and the notices are the place to read it.

On evidence, the allocation is worth stating plainly. The petitioner carries the burden on injury at the Commission. The exporter carries the burden of demonstrating its own rate. The importer of record, which is where most readers of this column sit, carries the duty liability, and therefore carries a practical burden it did not ask for: proving that what it imported was what it said it was. My supplier told me it was out of scope is not evidence. It is a sentence someone said. If you intend to rely on a scope position, the file has to contain the engineering basis for it, dated before the position was taken, and it has to be reconstructable years later by someone who was not in the room.

So, the records. A scope file for each model you import, holding the drawings, specification sheets, model codes and bills of material that show why it is or is not a van-type trailer within these notices. An origin and assembly file showing where each subassembly was made and where final assembly occurred, supported by production records rather than by a letter. An exporter identity file naming the legal entity that is the exporter and the producer for each shipment, and kept stable across the programme. An entry-date file pairing purchase order date, shipment date and entry date with the notice in force at that moment.

A contract file showing who bears duty risk, because Incoterms allocate transport costs and delivery obligations and do not, strictly speaking, allocate customs duty liability to anybody. And a correspondence log recording every scope and origin representation a supplier has made to you, with the date and the name attached. Retain all of it for the life of the order plus the ordinary review cycle and any live challenge window, and pin the actual retention period to the notice and to advice you have taken, not to a rule of thumb repeated in a meeting.

On the calendar, and these are the only dates I will assert because they are the ones the reporting gives me. By the end of this week the compliance function should have both Federal Register notices in hand and should have written down, on one page, whether each import programme is in scope, which exporter rate applies to it, and which entry-date language governs it. Before the end of June, procurement should have a priced alternative for every programme carrying a rate above 50 percent; I pick 50 percent as a threshold rather than a legal line, because at that level the unit economics stop being a procurement question and start being a capital question.

Through July, finance should be running the deposit as an explicit cash line with a range rather than a point estimate, using 82.3 and 128.7 as the two ends for Chinese-origin supply and under 2 percent for Mexican-origin supply, and stress-testing the fleet replacement plan at both ends. Around mid-August, when the Chinese final is expected, the deposit rate changes and the cash model has to be re-run in the same week. Around mid-October the Commission's injury determination is expected, and that is the date that decides whether any of the above is permanent. Around mid-December the Mexican final is expected, and with it the last of the rate uncertainty.

On alternatives, and the trap inside each one. Moving to Mexican supply looks attractive at under 2 percent, and there are three reasons not to treat that as settled: the rate is preliminary, the final is not expected until around mid-December, which is the longest wait of the three dates, and a rate below 2 percent is precisely the kind of number that invites a large shift of volume, which is the kind of volume shift that changes the facts an agency is looking at. Moving to domestic supply removes the duty question and inserts a price question, because the same reporting quotes the rating agency saying duties may be somewhat beneficial for the domestic producer over the next several years, which is a polite way of saying domestic prices are not under the same downward pressure.

Buying used or refurbished equipment does not answer the scope question; it changes the facts that get tested against it. Shifting to kits or subassemblies is closed by the semi-finished language. Routing through a third country is exactly what the Canada episode was about. And waiting carries a cost of its own, because the deposit obligation attaches to entries whether or not you have finished deciding.

For a sense of how these proceedings have ended recently, and I offer it as context rather than prediction: the same law firm's chassis matter finished with an International Trade Commission final determination imposing duties on chassis imports from Thailand, Vietnam and Mexico that in some cases exceed 185 percent, following a filing in February 2025, and a 2021 case against Chinese chassis exporters also succeeded. Different product, different record, and I am not importing those numbers into this case. What it establishes is that preliminary findings in this corner of trade law have a track record of becoming large final ones, which is an argument for modelling the top of the range rather than the bottom.

The specific errors I would watch for. Treating the headline rate as your rate, when the rates are exporter-specific and the top of the range is more than fifty percentage points above the bottom. Assuming 82.3 percent is a floor you can plan to, when the final can be higher and the reporting says so. Assuming the antidumping side is finished, when the reporting places it later in the summer and it may add a second layer to the same units. Assuming the October injury determination is a formality. Assuming a supplier's origin statement carries the same weight as production records, when the Canada decision turned on exactly that distinction. Assuming a rate below 2 percent on one origin is stable enough to rebuild a sourcing map on, when its final is the last of the three dates. And assuming the cash deposit is the final bill, when it is a deposit against a number that has not been fixed yet.

Let me stop where I started, with the date. This is a proceeding about subsidies, decided by two agencies on two different questions, running from now to roughly the middle of December, with a third question, the antidumping one, arriving somewhere in the middle of it. Everything in it is provisional until the Commission speaks in October and Commerce speaks in August and December. What is not provisional is the record you build while it runs. Somebody will eventually ask why a particular unit was treated as out of scope, or why a particular exporter's rate was applied, or why an order was pulled forward into a particular week. The answer will either be in a file you built this month, or it will be a sentence someone says in a meeting. Only one of those is evidence, and the file is far cheaper to build now.

↑ Back to the key points

— By Dr. Ingrid Voss