TRADE REMEDIES | 2026-10-21

Antidumping and Countervailing Duties: How the “Separate Rate” and “All-Others Rate” Decide What a California Importer Actually Pays — Especially on Goods From China and Other Non-Market Economies

When Commerce imposes antidumping or countervailing duties, not every exporter pays the same rate. Which rate applies to your supplier — an individually calculated rate, a separate rate, the all-others rate, or the punishing country-wide rate — can swing the duty bill enormously. For importers sourcing from China and other non-market economies, understanding how these rates are assigned is essential to pricing and compliance.

Antidumping (AD) and countervailing duty (CVD) orders are among the most expensive trade-remedy measures a California importer can face, and one feature catches importers off guard again and again: not every exporter under an order pays the same rate . The U.S. Department of Commerce assigns duty ra

For a California business importing covered merchandise, an antidumping or countervailing duty order can add a surcharge that dwarfs the ordinary tariff. But the headline rate in a news story about an order is rarely the rate a given importer actually pays, because Commerce assigns AD/CVD rates exporter by exporter. The same order can carry a near-zero rate for one supplier, a moderate all-others rate for another, and a triple-digit country-wide rate for a third. The practical lesson is that an importer cannot evaluate its exposure by looking at the order in the abstract; it must identify the specific rate assigned to its specific supplier. Nowhere is this more consequential than with goods from China and other non-market economies, where a special separate-rate system governs who escapes the country-wide rate and who does not.

What AD and CVD Orders Do

Antidumping duties address imports sold in the United States at less than fair value (below normal value or home-market price), under 19 U.S.C. § 1673. Countervailing duties address imports that benefit from countervailable subsidies provided by a foreign government, under 19 U.S.C. § 1671. In both, the Department of Commerce determines the margin of dumping or the net subsidy rate, and the International Trade Commission (ITC) determines whether a U.S. industry is materially injured (or threatened with injury) by the imports. If both agencies make affirmative findings, Commerce issues an order, and importers must deposit estimated duties at the assigned rate on entries of covered merchandise. These are remedial duties meant to offset unfair pricing or subsidization, and they stack on top of ordinary tariffs, which is why the assigned rate matters so much to the landed cost.

Rates Are Company-Specific, Not Order-Wide

The central feature importers must grasp is that AD/CVD rates are company-specific. During the investigation, Commerce typically selects a limited number of mandatory respondents — usually the largest exporters or producers — and calculates an individual rate for each based on their own data. Other cooperating exporters that are not individually examined may receive a rate derived from the mandatory respondents. And exporters that do not cooperate, or that cannot demonstrate independence from government control in an NME case, may be hit with a much higher rate. So a single order produces a schedule of rates, and the importer’s exposure depends entirely on which exporter it buys from and what rate that exporter carries. Two importers bringing in the same product under the same order can face wildly different duty bills based solely on their choice of supplier.

The All-Others Rate

The all-others rate is the rate assigned to cooperating exporters and producers that were not individually investigated. Under 19 U.S.C. § 1673d(c)(5) (and the parallel CVD provision), Commerce generally sets the all-others rate as a weighted average of the individually calculated rates of the mandatory respondents, excluding any rates that are zero, de minimis, or based entirely on facts available. If that method cannot be used (for example, where all individual rates are zero, de minimis, or based on facts available), the statute provides for a reasonable method to derive the all-others rate. The all-others rate matters because most exporters under an order are not mandatory respondents, so for a great many suppliers the all-others rate is the operative number. An importer sourcing from a non-examined but cooperating exporter in a market economy will typically face this rate.

Non-Market Economies and the Country-Wide Rate

For imports from non-market economy (NME) countries — most importantly China, and historically others such as Vietnam — Commerce applies a different and far more demanding framework. Commerce presumes that all exporters in an NME are subject to government control and therefore constitute a single, country-wide entity, which is assigned the NME country-wide rate. That country-wide rate is frequently very high, because it is often based on adverse facts available drawn from the least favorable information where the government-controlled entity does not fully cooperate. The consequence is severe: an NME exporter that does nothing is lumped into the country-wide entity and saddled with a punishing rate. To escape it, an exporter must affirmatively prove it operates independently of government control — which is where the separate-rate system comes in.

How the Separate Rate Works

In NME cases, an exporter can obtain a separate rate — a rate distinct from the country-wide entity rate — only by rebutting the presumption of government control. To do so, the exporter files a separate-rate application or certification and must demonstrate the absence of both de jure and de facto government control over its export activities. De jure (legal) independence looks at the absence of restrictive laws or controls on the exporter’s business. De facto (actual) independence looks at practical autonomy — whether the exporter sets its own export prices, negotiates its own contracts, selects management independently, and keeps its own profits. An exporter that makes this showing is granted a separate rate (often the rate assigned to non-examined cooperating separate-rate companies), rather than being trapped in the country-wide entity. Failing to apply, or failing to prove independence, leaves the exporter — and its U.S. importers — exposed to the country-wide rate.

Facts Available and Adverse Inferences

A recurring driver of punishing rates is facts available. Under 19 U.S.C. § 1677e, if a party withholds requested information, fails to provide it in the form or by the deadline required, significantly impedes the proceeding, or provides information that cannot be verified, Commerce may rely on facts otherwise available. And if the party failed to cooperate to the best of its ability, Commerce may use an adverse inference in selecting from the facts available — so-called adverse facts available (AFA) — which typically produces a high rate drawn from the most adverse information on the record (such as the highest rate alleged in the petition). AFA is what makes many country-wide and non-cooperating rates so steep. For importers, the lesson is that a supplier’s cooperation in a Commerce proceeding directly affects the rate the supplier carries, and therefore the importer’s duty exposure — a strong reason to source from exporters that engage seriously with Commerce.

Mandatory Respondents and Respondent Selection

Because Commerce often cannot individually examine every exporter, it selects mandatory respondents — generally the exporters or producers accounting for the largest volume of the subject merchandise, as permitted under 19 U.S.C. § 1677f-1(c). The rates Commerce calculates for these respondents then shape the all-others and separate rates. An exporter that is selected as a mandatory respondent bears a heavy data-reporting burden, but it also gets an individually calculated rate based on its own prices and costs — which can be favorable if its pricing was fair. An exporter that is not selected but cooperates (and, in NME cases, qualifies for a separate rate) typically receives the derived all-others or separate rate. Respondent selection therefore quietly determines which suppliers get their own number and which inherit an average, and it is a point where sophisticated exporters and their counsel engage actively.

Administrative Reviews Can Change the Rate

An AD/CVD rate is not fixed forever. The deposit rate set in the original investigation is an estimate; the final duty liability for a given entry is determined later, typically through an administrative review that Commerce conducts (on request) for a particular period of entries. In a review, Commerce recalculates rates based on the actual data for that period, and the resulting assessment rate can be higher or lower than the deposit rate — sometimes dramatically. This retrospective system means an importer’s true duty cost is not locked in at entry; it can rise if a review produces a higher rate for the supplier, leaving the importer liable for the difference (plus interest). Importers who assume the deposit rate is their final cost can be blindsided by a review assessment, which is why monitoring the review cycle for a supplier’s rate is part of prudent AD/CVD risk management.

Why the Importer Bears the Risk

AD/CVD duties are the legal responsibility of the importer of record, not the foreign exporter. The importer deposits estimated duties at entry and is liable for the final assessed amount after any review. This allocation of risk has sharp practical consequences: if an importer sources from an exporter carrying a high or country-wide rate, the importer pays; if a review raises the supplier’s rate, the importer pays the increase; and if merchandise is found to be within an order’s scope when the importer thought it was not, the importer can face large retroactive bills. Because the exporter does not bear this duty liability directly, importers cannot rely on suppliers to manage the risk for them. Verifying the specific rate a supplier carries, confirming scope and country of origin, and monitoring reviews are all the importer’s responsibility — and its exposure.

Practical Steps for California Importers

Managing AD/CVD exposure starts with identifying the specific rate assigned to each supplier under any order that could cover the merchandise — an individual rate, a separate rate, the all-others rate, or the country-wide rate — and confirming the supplier’s separate-rate status in NME cases. Importers should confirm scope (whether the product is actually covered, and whether a scope ruling is advisable) and country of origin, because transshipment and origin questions are heavily scrutinized and can trigger evasion enforcement. They should build the potential duty cost — including the risk of a higher review assessment — into pricing and contracts, and consider indemnification from suppliers. And they should monitor administrative reviews affecting their suppliers’ rates. Because the rate structure is technical and the duty liability falls on the importer, experienced trade counsel can help evaluate exposure before committing to a supplier and manage it over the life of an order.

Scope, Circumvention, and Evasion Risk

Beyond the rate itself, two scope-related exposures can turn a manageable AD/CVD situation into a crisis. First, Commerce can find that merchandise an importer believed was outside an order is actually within its scope through a scope ruling, exposing past entries to duties retroactively; prudent importers request scope rulings when coverage is genuinely uncertain rather than guessing. Second, Commerce can find circumvention — minor alterations, later-developed products, or assembly in a third country designed to evade an order — under 19 U.S.C. § 1677j, bringing otherwise-uncovered goods within the order’s reach. Separately, Customs enforces against duty evasion (including transshipment and misdescription) under the Enforce and Protect Act, 19 U.S.C. § 1517, which can impose duties and penalties on importers whose supply chains conceal the true country of origin. Because transshipment through a third country to disguise Chinese origin is aggressively policed, an importer must verify not just a supplier’s rate but the genuine origin and production of the goods. A low quoted price from a “non-covered” country is a red flag that warrants diligence, not relief, because an evasion finding reaches the importer of record with duties, interest, and potential penalties long after the goods have been sold.

Related Guides

• California International Trade & Customs Lawyers
• OFAC Sanctions Compliance: Strict Liability and the Framework
• ITAR or EAR? Determining Export-Control Jurisdiction

Frequently Asked Questions

What is the difference between antidumping and countervailing duties?

Antidumping duties (19 U.S.C. § 1673) offset imports sold below fair value; countervailing duties (19 U.S.C. § 1671) offset imports benefiting from foreign-government subsidies. In both, Commerce sets the margin or subsidy rate and the ITC determines material injury to a U.S. industry. If both findings are affirmative, Commerce issues an order and importers deposit estimated duties.

Why do different exporters pay different rates under the same order?

Because Commerce assigns rates company by company. It individually examines selected mandatory respondents and calculates their own rates; other cooperating exporters get a derived all-others or separate rate; non-cooperating exporters, or NME exporters that cannot prove independence, can get a much higher rate. The importer’s exposure depends on which supplier it buys from.

What is the all-others rate?

It is the rate for cooperating exporters that were not individually examined. Under 19 U.S.C. § 1673d(c)(5), Commerce generally sets it as a weighted average of the mandatory respondents’ individual rates, excluding zero, de minimis, and facts-available rates; if that is not possible, a reasonable method is used. Most exporters under an order carry this rate.

What is a separate rate and why does it matter for China?

For non-market economies like China, Commerce presumes all exporters are government-controlled and a single country-wide entity with one (often very high) rate. To get a distinct “separate rate,” an exporter must rebut that presumption by proving the absence of both de jure and de facto government control over its export activities. Without a separate rate, the exporter — and its importers — face the country-wide rate. Call Trembach Law Firm at (213) 645-2246.

What is “adverse facts available” (AFA)?

Under 19 U.S.C. § 1677e, if a party withholds information, misses deadlines, impedes the proceeding, or submits unverifiable data, Commerce may use facts otherwise available; if the party failed to cooperate to the best of its ability, Commerce may apply an adverse inference and select the most adverse facts (such as the highest petition rate). AFA produces the steep rates seen in country-wide and non-cooperating determinations.

Can the rate change after I import?

Yes. The deposit rate at entry is an estimate. The U.S. uses a retrospective system: Commerce can conduct administrative reviews that recalculate the rate for a period of entries, and the final assessment can be higher or lower than the deposit rate. If it is higher, the importer of record owes the difference plus interest.

Who is liable for AD/CVD duties — me or my supplier?

The importer of record. You deposit estimated duties at entry and are liable for the final assessed amount after any review. The foreign exporter does not bear this liability directly, so you cannot rely on the supplier to manage the risk. Verifying the supplier’s specific rate, confirming scope and origin, and monitoring reviews are your responsibility. Call Trembach Law Firm at (213) 645-2246.

How can I reduce AD/CVD risk before sourcing?

Identify the exact rate your prospective supplier carries (and its separate-rate status in NME cases), confirm whether the product is within an order’s scope (consider a scope ruling), verify country of origin to avoid transshipment/evasion exposure, build the potential duty cost — including review-assessment risk — into pricing and contracts, and monitor administrative reviews. Experienced trade counsel can evaluate this before you commit to a supplier.

Talk to a California Trade Lawyer About AD/CVD Duties

Under an antidumping or countervailing duty order, the rate assigned to your specific supplier — individual, separate, all-others, or the punishing NME country-wide rate — decides what you actually pay, and the liability falls on you as importer of record. Trembach Law Firm, led by Anatolii Trembach (LL.M.; admitted in California), helps importers evaluate AD/CVD exposure, analyze separate-rate and all-others issues, confirm scope and origin, and manage duty risk over the life of an order. Call (213) 645-2246 for a confidential consultation.

Contact Trembach Law Firm at (818) 514-7680 for a confidential consultation.

Trembach Law Firm | 27001 Agoura Road, Suite 350, Calabasas, CA 91301