TRADE REMEDIES | 2026-10-28

The "Particular Market Situation" in Antidumping Cases: How 19 U.S.C. §1677b(e) Lets Commerce Reject a Respondent’s Costs, Explained for California Importers

Since 2015, the Commerce Department has used the "particular market situation" provision to disregard a foreign producer’s actual costs and inflate the dumping margin when it finds the home market is distorted. The Federal Circuit has sharply limited that power. For California importers facing antidumping duties, understanding the PMS doctrine is essential to challenging an unfair margin.

When the U.S. Commerce Department calculates an antidumping duty, it compares the price a foreign producer charges in the United States against a benchmark called normal value — usually the price in the producer’s home market or the producer’s cost of production. In the Trade Preferences Extension A

Antidumping duties can add 20, 50, or even several hundred percent to the landed cost of imported goods, so how the margin is calculated matters enormously to the importer who ultimately pays. One of the most contested calculation issues of the past decade is the particular market situation, a provision that lets the Commerce Department set aside a foreign producer’s real costs when it concludes the home market is distorted. This article explains where the PMS authority comes from, how Commerce uses it, how the courts have cabined it, and what it means for a California importer facing an antidumping order.

How Antidumping Margins Are Built

An antidumping duty equals the amount by which normal value exceeds the export price (or constructed export price) of the subject merchandise. Normal value is ordinarily the price at which the foreign producer sells the like product in its own home market. But under 19 U.S.C. §1677b(b), Commerce disregards home-market sales made below the cost of production when such sales are made in substantial quantities over an extended period and at prices that do not permit recovery of costs within a reasonable time. When too few above-cost home-market sales remain, Commerce turns to constructed value under §1677b(e) — the cost of materials and fabrication, plus selling, general and administrative expenses and profit. In both paths, the respondent’s cost of production is central, and that is exactly where the PMS fight occurs.

What the TPEA Added in 2015

Before 2015, "particular market situation" appeared in the statute only in a narrow context affecting the viability of using home-market prices. The Trade Preferences Extension Act of 2015 expanded the concept in two places. First, it amended the normal-value provisions so that a PMS in the exporting country can justify disregarding home-market or third-country prices. Second, and more controversially, it amended §1677b(e) to provide that if a particular market situation exists such that the cost of materials and fabrication or other processing does not accurately reflect the cost of production in the ordinary course of trade, Commerce "may use another calculation methodology." Commerce read this as authority to make upward adjustments to a respondent’s reported costs whenever it finds a market distortion.

How Commerce Has Used the PMS Provision

Commerce has invoked PMS most heavily in steel and pipe antidumping proceedings, particularly against Korean producers. The agency has found a particular market situation based on factors such as subsidized or low-priced hot-rolled coil inputs, the influence of government policies on input markets, electricity pricing, and strategic alliances among domestic producers. Having found a PMS, Commerce then added a quantified cost adjustment, increasing the respondent’s cost of production and thereby either disqualifying more home-market sales as below-cost or inflating constructed value. The practical effect is a higher normal value and a larger dumping margin — and a larger duty bill for U.S. importers. Because the adjustments can be large and the findings turn on contested economic evidence, PMS quickly became one of the most litigated issues in antidumping law.

The Courts Push Back: The Sales-Below-Cost Test

The central legal question is whether the §1677b(e) cost-based PMS language authorizes Commerce to adjust costs in the sales-below-cost test under §1677b(b), or only when calculating constructed value. The Federal Circuit answered in Saha Thai Steel Pipe Public Co. v. United States, holding that the PMS provision in §1677b(e) applies to the calculation of constructed value and does not permit Commerce to adjust the cost of production used in the sales-below-cost analysis. In other words, Commerce cannot use a PMS cost adjustment to knock out home-market sales as below cost; the statutory text ties the cost-based PMS authority specifically to constructed value. This reading sharply limits the circumstances in which a PMS adjustment can lawfully raise the margin, because Commerce frequently used PMS precisely to attack home-market sales.

Substantial Evidence and the PMS Finding Itself

Beyond the statutory-authority question, the courts have scrutinized whether a particular market situation exists on the record at all. Commerce’s PMS findings must be supported by substantial evidence, and the Court of International Trade has repeatedly remanded determinations where the agency relied on generalized assertions of distortion rather than record evidence tying a specific distortion to the specific inputs and their effect on cost. A finding that inputs were "subsidized" or that the market was "distorted," without a reasoned, evidence-backed explanation of how and by how much costs were affected, has not survived review. For importers, this creates two independent lines of attack: the legal question of whether Commerce had authority to make the adjustment, and the factual question of whether the PMS finding is supported.

Cost-Based Versus Sales-Based PMS

It is important to distinguish the two PMS concepts the TPEA created. The sales-based PMS, under §1677b(a)(1)(C), concerns whether a PMS makes home-market or third-country prices unusable, pushing Commerce toward constructed value. The cost-based PMS, under §1677b(e), concerns whether a PMS makes the respondent’s costs unreflective of the ordinary course of trade, allowing an alternative cost methodology in constructing value. The Saha Thai line addresses the cost-based provision and its boundary with the sales-below-cost test. Because the two provisions operate differently, a correct analysis identifies which PMS Commerce actually invoked and whether it used it in a context the statute authorizes.

Why This Matters to California Importers

The importer of record — often a California distributor, fabricator, or end user bringing steel, pipe, fasteners, or similar goods through the Ports of Los Angeles and Long Beach — is the party that pays the antidumping duties at entry and on final assessment. When Commerce builds a margin on a PMS cost adjustment that exceeds its statutory authority or lacks evidentiary support, the importer bears an inflated duty. Although the foreign producer is the named respondent in the proceeding, importers have a direct financial stake and can participate as interested parties, submit factual information and argument, and — critically — pursue judicial review of an unlawful determination. Understanding the PMS doctrine lets an importer evaluate whether a margin is vulnerable before cash deposits and assessments compound.

Participating in the Administrative Proceeding

PMS challenges are built first at the agency, because arguments not raised before Commerce generally cannot be raised on appeal (the exhaustion principle). Interested parties submit factual information on the alleged distortion, rebuttal information and benchmarks, and case and rebuttal briefs arguing both the absence of a PMS and the lack of authority to adjust costs in the sales-below-cost test. Where Commerce has quantified a cost adjustment, parties contest the methodology and the data sources used to compute it. Preserving these arguments in the administrative record is what makes a later appeal viable, so importers with a meaningful stake often coordinate with the foreign producer’s counsel or participate directly.

Judicial Review at the CIT and Federal Circuit

A final antidumping determination can be challenged at the U.S. Court of International Trade, which reviews Commerce’s legal conclusions and whether its factual findings are supported by substantial evidence on the administrative record. Appeals from the CIT go to the U.S. Court of Appeals for the Federal Circuit. The PMS case law has developed almost entirely through this channel, with the courts both reversing Commerce’s expansive reading of its cost-adjustment authority and remanding unsupported PMS findings for reconsideration. Because judicial review follows the deferential substantial-evidence and Chevron-successor standards for agency statutory interpretation, the strength of the administrative record and the precision of the legal argument are decisive.

The Interaction With Refunds and Cash Deposits

Antidumping duties are collected as cash deposits at the estimated rate when goods enter, then finalized in a later administrative review that sets the actual assessment rate for the period. If a PMS adjustment is struck down on appeal, the corrected margin flows through to the assessment and the deposit rate going forward, and importers may be entitled to refunds of overpaid duties with interest for the affected entries. Because the timeline from entry to final assessment to appellate resolution can span years, importers track the litigation closely and preserve their entries’ status so that a favorable ruling translates into an actual refund rather than a missed opportunity.

Practical Steps for Importers Facing a PMS Margin

An importer confronting an antidumping margin built on a PMS adjustment should (1) identify which PMS provision Commerce invoked — cost-based under §1677b(e) or sales-based under §1677b(a)(1)(C); (2) determine how the adjustment was used, especially whether it drove the sales-below-cost test in a manner Saha Thai forecloses; (3) assess whether the PMS finding is supported by record evidence tying a specific distortion to a quantified cost effect; (4) ensure the arguments are preserved in the administrative record; and (5) evaluate the timeline for cash deposits, assessment, and potential refunds. Each step requires close reading of Commerce’s determination and the governing case law, which continues to evolve. An importer that treats the PMS issue as the foreign producer’s problem alone often discovers, too late, that it is the party actually writing the checks; engaging early — while the record is still open and the cash-deposit rate can still be influenced — is almost always better than waiting for the final assessment to arrive. The producers, importers, and counsel who coordinate their PMS challenge across the administrative proceeding and any appeal consistently fare better than those who contest the margin in isolation or not at all.

Frequently Asked Questions

What is a "particular market situation" in antidumping law?

It is a statutory basis, expanded by the Trade Preferences Extension Act of 2015, for Commerce to disregard a foreign producer’s home-market prices or actual costs when a distortion means they do not reflect the ordinary course of trade. The cost-based version appears in 19 U.S.C. §1677b(e); the sales-based version in §1677b(a)(1)(C).

Why does a PMS adjustment raise my antidumping duty?

A PMS cost adjustment increases the respondent’s cost of production, which can disqualify more home-market sales as below-cost or inflate constructed value. Either way, normal value rises, the dumping margin widens, and the importer of record pays a larger duty.

What did Saha Thai decide?

In Saha Thai Steel Pipe v. United States, the Federal Circuit held that the cost-based PMS provision in §1677b(e) applies to calculating constructed value and does not authorize Commerce to adjust the cost of production used in the sales-below-cost test under §1677b(b). That sharply limits a common use of PMS adjustments.

Can Commerce find a PMS based on subsidized inputs alone?

Not without evidence. Commerce’s PMS findings must be supported by substantial evidence on the record, and courts have remanded determinations that relied on generalized claims of distortion without tying a specific distortion to a quantified effect on the respondent’s costs.

I am the importer, not the foreign producer. Can I do anything?

Yes. Importers are interested parties with a direct financial stake. You can participate in the administrative proceeding, submit factual information and briefs, and pursue judicial review of an unlawful determination at the Court of International Trade and the Federal Circuit.

What is the difference between cost-based and sales-based PMS?

Sales-based PMS (§1677b(a)(1)(C)) concerns whether a distortion makes home-market or third-country prices unusable. Cost-based PMS (§1677b(e)) concerns whether a distortion makes the respondent’s costs unreflective of the ordinary course of trade, allowing an alternative cost methodology in constructed value.

Where are PMS determinations challenged?

At the U.S. Court of International Trade, which reviews whether Commerce’s findings are supported by substantial evidence and whether its legal interpretations are lawful, with appeals to the U.S. Court of Appeals for the Federal Circuit. Almost all PMS case law has developed through this channel.

If a PMS adjustment is struck down, do I get a refund?

Potentially. Antidumping duties are collected as cash deposits and finalized in administrative reviews. If a corrected margin results, it flows through to the assessment and deposit rate, and importers may be entitled to refunds of overpaid duties with interest on the affected entries.

How a PMS Adjustment Is Quantified

Even where Commerce lawfully invokes a cost-based PMS, it must quantify the adjustment, and that calculation is itself a frequent target. Commerce has used various methodologies to estimate how much a distortion inflated or deflated an input cost — for example, benchmarking the respondent’s input price against prices in a market Commerce deems undistorted, or layering in an estimate attributable to upstream subsidies. Each methodological choice must be supported by substantial evidence and must rationally measure the distortion it purports to correct. The Court of International Trade has rejected adjustments that double-count — for instance, capturing the same input distortion through both a PMS cost add and a separate countervailing-duty remedy — and adjustments resting on data sources that do not actually reflect the respondent’s circumstances. For importers, scrutinizing the arithmetic and data behind the adjustment is as important as contesting the threshold PMS finding, because an unsupported quantification can fall even where some distortion is conceded.

The Order’s Life: Reviews and Sunset

An antidumping order is not static. After issuance, Commerce conducts annual administrative reviews that recalculate margins for individual producers, and PMS allegations can recur in each review, meaning an importer may face the issue repeatedly over the life of an order. Every five years, the order is subject to a sunset review under 19 U.S.C. §1675(c), in which Commerce and the International Trade Commission decide whether revoking the order would likely lead to continued or recurring dumping and injury. Because PMS determinations can swing a producer’s margin materially, they influence not only the duties owed in a given period but also the broader trajectory of the order. Importers who track the review calendar and participate at each stage preserve the ability to benefit from favorable case-law developments as the PMS doctrine continues to mature in the courts. The stakes compound over time: a PMS adjustment left unchallenged in an early review can harden into the baseline methodology Commerce carries forward, so the cost of passivity grows with each period, while a successful challenge can reset the margin and unlock refunds across multiple entries at once.

Related Guides

For related reading, see our guide on countervailing-duty subsidy and specificity and our international trade and customs practice overview. A PMS adjustment is often the single largest driver of an antidumping margin, and it is frequently vulnerable on both legal and evidentiary grounds.

Speak With a California Trade Attorney

If your company imports goods subject to an antidumping order and the margin was built on a particular-market-situation adjustment, that adjustment may exceed Commerce’s authority or lack evidentiary support. Trembach Law Firm analyzes PMS determinations under 19 U.S.C. §1677b(e), preserves arguments in the administrative record, and pursues review at the Court of International Trade and Federal Circuit. Call (213) 645-2246 to discuss your antidumping exposure with an attorney who handles trade-remedy matters. Anatolii Trembach holds an LL.M. and is admitted to the California Bar.

This article provides general information about antidumping law and is not legal advice. Trade-remedy proceedings are fact-specific and the PMS case law continues to develop. Consult a qualified trade attorney about your particular situation.

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

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