For in-house trade counsel revising a litigation assessment, the distinction changes which objections deserve weight. USTR has mapped trade flows. Its further conclusions about forced-labor content and competitive effects depend on additional evidence and inference. The September submission contests those conclusions. It carries no judicial finding and changes no duty by itself.
The commercial burden comes before the remedy
Section 301(b) requires USTR to determine that an unreasonable or discriminatory foreign practice burdens or restricts U.S. commerce and that U.S. action is appropriate. Section 301(c)(3)(B) separately permits responsive action against goods or sectors uninvolved in the practice. Evidence that one supplier uses no forced labor therefore does not answer whether the exporting country's policy burdens U.S. commerce through other trade.
This commercial predicate differs from the rate-design question Traverse examined in August. Evidence that tariffs encourage adoption of an import ban concerns the remedy's operation. It cannot, by itself, establish the burden attributed to a failure to impose or effectively enforce that ban. The new brief directs attention to that earlier step, although the court has yet to decide whether its objections warrant relief.
PPI's description on printed page 7 says Appendix B omits the countries from which relevant goods came. It characterizes the appendices as implicating imports from anywhere. USTR's June report, printed page 89, specifies aluminum and cotton from China, rice from Burma, and tobacco from Malawi. Appendix C's notes on printed page 92 pair input origins with downstream tariff codes, including Malawian tobacco under HS chapter 24 and downstream products under heading 2402.
The tables show overlapping trade in specified goods. Appendix B records whether an investigated economy imported the listed input and the same product from the United States. Appendix C records whether it imported the input and exported downstream products to the United States. Their notes identify official trade statistics and disclose use of mirror data and missing 2025 observations for some economies.
Those qualifications matter when comparing countries or years. So does the level of aggregation. The matrices do not identify a producer, establish which units were made with forced labor, or trace a particular imported input into an exported product. The origin notes correct PPI's sweeping characterization without establishing every subsequent inference USTR draws.
Read each source for the proposition it supports
The Labor Department's 2024 list warns on page 71 against generalizing a country-product listing to all production of that good. Compliant and abusive firms may coexist. Page 68 explains that the list does not distinguish domestic consumption from export production.
These limits help counsel identify the contested step in the agency's explanation. They do not prohibit USTR from using the list with other evidence.
Three questions for the Section 301 litigation assessment
As of September 11, 2026. This comparison uses the USTR report, DOL methodology and the proposed PPI brief to separate propositions in the burden finding. The final column identifies evidence that could strengthen or weaken the assessment, without prescribing a statutory proof method.
| Proposition | What the cited record supplies | What remains to be evaluated |
|---|
| An investigated economy traded in relevant goods | USTR Appendices B and C identify aggregate input and competing-product flows, with several source-country mappings | Whether the selected categories, periods and data qualifications support the asserted overlap |
| The trade included goods made with forced labor | DOL identifies country-product risk, and USTR adds reasoning about prevalence | How that evidence supports the inferred incidence in the trade examined |
| The foreign practice burdened U.S. commerce | USTR offers case studies, economic reasoning and industry testimony | How the alleged effects follow from that practice, accounting for competing explanations |
Section 301(b) does not expressly prescribe shipment-by-shipment proof, an underselling test or a particular economic model. Whether the assembled evidence and reasoning suffice is the dispute. Treating any one of those methods as a settled legal requirement would overstate the challengers' position.
Market prices leave the supply question open
PPI suggests that abusive producers could retain labor-cost savings as profit while selling at prevailing prices. That is a plausible alternative to assuming every saving becomes a price cut.
USTR's tobacco example makes a further argument. On printed page 41 of its report, the agency reasons that excluding affected Malawian supply would likely raise tobacco prices in Poland and could shift purchases toward U.S. producers. The relevant comparison is the market with and without that supply. A prevailing market price can already reflect its presence. Observing that price cannot establish what buyers would have paid or purchased after its removal.
This is why the profit-retention possibility does not settle the economic question. USTR must still support its explanation of the effect on U.S. firms. In its September 4 response, printed pages 39 to 44, DOJ defends the tables, case studies and predictive reasoning together, arguing that forced labor need not be the sole explanation for a trade trend. The court will assess that defense against the record.
Keep the different burden theories in view
USTR alleges harm through competition with U.S. exports abroad, circumvention into the U.S. market, and displacement of fairly made foreign goods into the United States. DOJ argues on printed page 44 that the export-competition finding can sustain the burden determination even if objections to circumvention succeed. That is the government's argument, not a holding.
The litigation memorandum should identify which route each objection addresses, with the supporting report page and DOJ's response. A flaw in an input-tracing inference has different implications from a rejection of the broader finding about U.S. export competition. Counting criticisms of individual examples will miss that distinction.
The plaintiffs' reply is due September 18. Read it for the specific inference the plaintiffs ask the court to reject and the evidence they say contradicts it. Revise the merits assessment when that record changes. Current entry treatment continues to depend on the operative USTR action and applicable later changes, rather than the filing of an amicus brief.