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Double-Duty Imports: 28 Product-Country Lanes Where AD and CVD Stack

Census computed from ExportSonar's Federal Register trade-remedy pipeline: 211 antidumping/countervailing action records published between April and October 2026 (extract generated 2026-10-11). Every figure below is reproducible from that dataset.

Ask around a freight forwarder's desk and you will hear it as folklore: "if you get hit with antidumping, countervailing usually follows." The folklore is right often enough to matter, and nobody tells you which products. Regulators explain what dumping and subsidies are; consultant blogs warn that the two “can stack”; not a single ranking site enumerates where both remedies are live at the same time on the same lane. We run a structured pipeline over the Federal Register's trade-remedy notices, so we did the obvious thing: grouped all 211 action records from our current window by product and origin country, and flagged every lane where an antidumping (AD) proceeding and a countervailing (CVD) proceeding coexist. The answer: 28 product-country lanes across 25 distinct products, most of them pointing at one flag. If you import any product in the tables below, you are pricing two remedies into your landed cost — or you are about to be surprised at entry.

Two remedies, one entry: how the stacking works

Antidumping duty compensates for goods sold below fair value; countervailing duty claws back the benefit of foreign subsidies. Different statutes, different investigations, different agencies of record — but the same customs entry. When both orders are live for your product from your country, CBP collects both: each on its own cash-deposit basis, each carried on its own case number, both in addition to the ordinary Harmonized Tariff Schedule rate and the MPF/HMF entry fees. Nothing nets off. A lane with a 5 percent ordinary tariff can easily carry a triple-digit combined burden once both special duties price in, which is why the classification-first question "is my lane double-exposed?" belongs before the first deposit payment, not after.

The census: 211 actions, 108 products, 28 double lanes

Our extract spans 211 Federal Register action records whose action effective dates run from April 18 to October 13, 2026; the pipeline fetches notices published from July 13, 2026 onward, and a single notice can report an action effective before or after its publication week. The program split: 133 antidumping actions, 48 countervailing actions, and 30 records where a single notice covers both programs. Grouped to the product level that yields 108 distinct products and 156 product-country lanes. Twenty-five of those products — spread over 28 lanes — carry both AD and CVD proceedings in the same lane. Here is every one of them:

Source: ExportSonar Federal Register pipeline (data/adcv_cases.json, 211 records, fetch window opens 2026-07-13, extract generated 2026-10-11). Lane = product × origin country carrying both an AD-flavor and a CVD-flavor proceeding, counting combined AD/CVD notices as evidence of both. Product strings are reproduced verbatim from the source feed, including trailing punctuation left over from FR titles.

A pattern jumps out even before anyone says "industrial policy": aluminum appears four times (extrusions, foil, disposable containers, common alloy sheet), steel intermediates account for the majority of the rest, and the consumer-facing tail runs from fiberglass door panels to wooden vanities. Only three products break the metals-and-chemicals frame — ripe olives, organic soybean meal, and oleoresin paprika — all agricultural, all familiar names in long-running trade-remedy dockets.

Where the double exposure concentrates

Counting the 28 lanes by origin: China holds 16 (57 percent), India and Korea 4 each, Türkiye 2, Spain and Bahrain 1 apiece. Measured by paperwork rather than lanes, 38 of the 64 Federal Register action rows inside double lanes are China-specific. Twenty-six of those 64 rows are final orders — the stage where money is being collected today rather than provisionally — and the five most recent effective dates all landed within the last six weeks of the window:

Source: same extract, filtered to final-order actions inside the 28 double lanes. Companion CVD case numbers are listed in each cited Federal Register document.

Worked example: Common Alloy Aluminum Sheet from China

This is the densest lane in the census, and it shows the machinery at full speed. On October 2, 2026, final orders took effect for Common Alloy Aluminum Sheet from China under antidumping case A-570-073 and countervailing case C-570-074 — two case numbers, two legal bases, one stream of shipments. The same product is simultaneously double-exposed from Bahrain (A-525-001 preliminary AD, C-525-002 preliminary CVD) and Türkiye (A-489-839 / C-489-840), with an amended AD order (A-523-814) covering Oman. An Indian CVD investigation (C-533-896) rounds out the web. A buyer sourcing aluminum sheet across Asia cannot treat these as five unrelated headlines: the practical question "what does my lane charge today?" has a different answer for every cell of that product-by-country matrix, and each cell moves on its own Federal Register schedule. That is precisely the state a static blog post cannot represent and a monitored watch list can.

How to check your own lane before you ship

1. Name the product the way Commerce does. Scope language is literal: "Certain Vertical Shaft Engines Between 99cc and 225cc" is a different lane from the 225–999cc version, with its own case numbers. Match scope paragraphs, not marketing names.
2. Look up both proceedings for your product-country pair in our AD/CVD case browser, which resolves product names to HTS headings and lists every open action with its Federal Register citation.
3. Read the active document for the cash-deposit rate. Structured numeric rates are sparse in machine feeds — only 51 of the 211 records in our window publish one — so treat any percentage you find secondhand as a lead, not an answer, and confirm it against the cited FR document keyed by case number.
4. Compute the all-in number. Ordinary HTS duty first (our calculator handles the base rate and the fee floor), then the AD cash-deposit basis, then the CVD basis. The three stack; nothing nets off.
5. Monitor the case numbers you now depend on. Fifteen of the 211 actions in our window are amended-order notices — silent changes to rates you may already be paying. A watch list with email alerts is the only durable defense.

One-sided lanes exist too — and they mislead

The census also shows why intuition fails here. Certain Steel Nails carry a CVD final result from Vietnam (case C-552-819, effective September 2, 2026) while the nail antidumping actions in the window cover Korea, Malaysia, Oman and the UAE — Vietnam nail importers face the subsidy remedy only. The reverse pattern exists as well, and several products in the extract carry either remedy alone in every lane. Two further honesty notes on the count itself: widen the definition to "any product with an AD-flavor and a CVD-flavor record anywhere in the window" and the product set grows to 39; tighten it to separate AD and CVD rows filed under distinct case numbers and it shrinks to 28 products. We anchor the headline to the 28-lane figure because it is the strictest definition that still matches how CBP actually collects: both remedies live, same lane, same entry. Definitions matter less than the operational takeaway — check the lane, not the rumor — but if you quote our number elsewhere, quote it with its edges.

Trade remedies are the fastest-moving corner of customs cost: an investigation opens, prices a provisional deposit, and hardens into an order within a quarter. The 28 lanes above are the ones where that cycle has already doubled — check yours before the next Federal Register Friday does it again. Start with the AD/CVD lookup workflow, price the ordinary tariff in the duty calculator, and see what a subscription adds in monitoring and export tooling.