Pleading Limits for Section 1 Boycott Claims Where Core Conduct Is Noerr-Pennington-Protected and “Parallel Refusals” Are Commercially Plausible

Case: JSW Steel (USA) v. Nucor, No. 22-20149 (5th Cir. Mar. 17, 2025) (per curiam) (not designated for publication)

1. Introduction

JSW Steel (USA) Incorporated and JSW Steel USA Ohio, Incorporated (collectively, “JSW”) sued Nucor Corporation, United States Steel Corporation (“U.S. Steel”), and AK Steel Holding Corp. (“AK Steel”) alleging a coordinated boycott designed to deny JSW access to steel slab needed to manufacture steel products. JSW’s theory centered on the federal “Section 232” tariff exclusion process created after President Trump’s 2018 steel-import measures, under which the Bureau of Industry and Security (“BIS”) could grant exclusions when steel was not domestically available in sufficient quantity and quality.

JSW alleged that defendants exploited that administrative process by filing “near-simultaneous and parallel” objections to JSW’s exclusion requests—claiming domestic availability—and then, once JSW’s exclusions were denied, refusing to sell JSW slab (or offering it only with credit requirements and technical deviations). JSW framed this as a concerted refusal to deal (a group boycott) violating § 1 of the Sherman Act, plus related federal and Texas-law claims.

The district court dismissed the federal antitrust claims (and, consequentially, the state claims). The Fifth Circuit affirmed, focusing on (i) the shielding effect of the Noerr-Pennington doctrine for petitioning conduct and (ii) the insufficiency of JSW’s remaining, post-petition commercial allegations to plausibly plead an agreement under Twombly.

2. Summary of the Opinion

The Fifth Circuit affirmed dismissal under Rule 12(b)(6). It held that much of JSW’s alleged conspiracy was grounded in defendants’ filings and communications with BIS and the Department of Commerce—petitioning conduct protected by the Noerr-Pennington doctrine. JSW conceded that point.

JSW attempted on appeal to recast that protected petitioning conduct as “context” supporting an inference that later refusals to deal were conspiratorial. The court held JSW forfeited that argument by failing to raise it in the district court.

Evaluating only the non-petitioning conduct—JSW’s post-denial attempts to buy from AK Steel and U.S. Steel—the court held JSW still failed to plead a plausible § 1 agreement. Parallel creditworthiness requests and technical “exception sheets” were at least as consistent with independent, commercially rational conduct as with a conspiracy. Because JSW failed to state a Sherman Act claim, the panel did not reach alternative issues such as antitrust injury.

3. Analysis

3.1 Precedents Cited

  • Neiman v. Bulmahn, 854 F.3d 741 (5th Cir. 2017)
    Cited for the pleading-stage principle that the court recites facts “as alleged in the complaint.” This frames the appellate review posture: accept well-pleaded facts as true, but only insofar as they plausibly state a claim.
  • Masel v. Villarreal, 924 F.3d 734 (5th Cir. 2019)
    Supplies the de novo standard of review for Rule 12(b)(6) dismissals.
  • Spitzberg v. Hous. Am. Energy Corp., 758 F.3d 676 (5th Cir. 2014) and Bell Atlantic Corp. v. Twombly, 550 U.S. 544 (2007)
    Together establish the “plausibility” pleading standard. Twombly is the centerpiece for evaluating § 1 conspiracy claims based on parallel conduct: allegations must include contextual facts suggesting an agreement, not merely parallel behavior consistent with independent action.
  • Moffett v. Bryant, 751 F.3d 228 (5th Cir. 2014)
    Reinforces that well-pleaded facts are viewed in the plaintiff’s favor, but does not relax the plausibility requirement.
  • E. R.R. Presidents Conf. v. Noerr Motor Freight, Inc., 365 U.S. 127 (1961) and United Mine Workers Am. v. Pennington, 381 U.S. 657 (1965)
    These cases create the Noerr-Pennington doctrine: petitioning the government is generally immune from antitrust liability, even when motivated by anticompetitive intent.
  • City of Columbia v. Omni Outdoor Adver., Inc., 499 U.S. 365 (1991)
    Cited for the broad proposition that antitrust laws do not regulate private efforts to obtain anticompetitive government action—reinforcing that coordinated petitioning (as petitioning) is typically not actionable.
  • Video Int'l Prod., Inc. v. Warner-Amex Cable Commc'ns, Inc., 858 F.2d 1075 (5th Cir. 1988)
    Used to restate the doctrine’s “essence” in Fifth Circuit terms: parties cannot be prosecuted under antitrust laws for petitioning, even if the petitioning is anticompetitive in intent.
  • Rollins v. Home Depot USA, 8 F.4th 393 (5th Cir. 2021)
    Drives the forfeiture holding: arguments not raised in the district court generally cannot be raised for the first time on appeal. This is critical here because JSW’s “petitioning-as-context” theory was not preserved.
  • MM Steel, L.P. v. JSW Steel (USA) Inc., 806 F.3d 835 (5th Cir. 2015)
    Provides the elements of a § 1 claim and emphasizes the baseline rule that unilateral refusals to deal are generally lawful; illegality requires a concerted refusal to deal.
  • Monsanto Co. v. Spray-Rite Serv. Corp., 465 U.S. 752 (1984)
    Quoted via MM Steel for the proposition that firms may choose with whom to deal, so long as the decision is independent. This underscores why JSW had to plausibly allege agreement rather than parallelism.
  • Lone Star Fund V (U.S.), L.P. v. Barclays Bank PLC, 594 F.3d 383 (5th Cir. 2010) and U.S. ex rel. Riley v. St. Luke's Episcopal Hosp., 355 F.3d 370 (5th Cir. 2004)
    These authorities validate the court’s ability to consider documents attached to motions to dismiss when central and referenced, and the rule that exhibits control over conflicting pleadings. This mattered because JSW’s BIS-related rebuttals and the content of communications limited the inferences JSW could draw from its own characterizations.

3.2 Legal Reasoning

Noerr-Pennington narrows the actionable core of the alleged conspiracy

The court treated defendants’ BIS objections and coordination with the Department of Commerce as paradigmatic petitioning activity. Under Noerr, Pennington, and Omni Outdoor Adver., Inc., antitrust law generally does not impose liability for efforts to influence governmental decision-making—even if competitors coordinate and even if the resulting government action disadvantages a rival.

JSW conceded that the BIS “certifications” and objections themselves could not be the basis for antitrust liability. That concession effectively excised the most detailed and “parallel” conduct from the agreement analysis, leaving only the later commercial interactions as the operative facts for § 1.

Forfeiture prevented JSW from using protected conduct as “context” on appeal

JSW tried to argue on appeal that petitioning conduct could still be considered as contextual evidence that subsequent refusals to deal were conspiratorial. The panel did not decide whether that theory might be viable in some cases; it held only that JSW failed to plead and litigate that theory below and thus forfeited it under Rollins v. Home Depot USA.

Practically, this converted what could have been a nuanced “mixed conduct” case (petitioning plus marketplace conduct) into a simpler evaluation of whether the post-petition conduct alone plausibly suggested agreement.

Parallel commercial behavior did not cross the Twombly line from possibility to plausibility

Applying Twombly, the court asked whether the alleged parallelism “raises a suggestion of a preceding agreement” rather than describing conduct “that could just as well be independent action.” JSW relied on two parallels: (1) similar creditworthiness demands and (2) similar technical deviations/exception sheets.

  • Creditworthiness requirements: The court treated it as commercially ordinary—especially given the size of the contemplated purchase (30,000 tons)—for a seller to require proof of creditworthiness. JSW did not allege it was singled out compared to other customers, did not allege facts establishing its own creditworthiness, and did not comply with the requested forms of assurance. Those missing allegations undermined the claim that the credit requests were a pretext for a conspiracy.
  • Technical deviations: The court found the deviations consistent with the earlier administrative record: JSW itself had argued to BIS that domestic producers could not meet the exact requested specifications and would instead offer substitutes or impose limitations. When AK Steel and U.S. Steel later proposed slabs with deviations and lead times, that looked consistent with capacity/technical constraints rather than coordination to boycott.

In short, with petitioning conduct off the table as a direct basis for liability—and with only these post-petition facts remaining—the complaint did not plausibly allege the requisite agreement element under § 1.

Antitrust injury was not reached

The district court had also found no cognizable antitrust injury, but the Fifth Circuit expressly declined to reach that alternative ground once it determined JSW failed to state a § 1 claim.

3.3 Impact

Although unpublished, the decision offers a clear template for how Fifth Circuit panels may analyze antitrust complaints arising out of regulatory processes like the Section 232 exclusion regime:

  • Regulatory petitioning will often be “dead weight” for § 1 pleading unless a properly preserved, legally viable theory permits its consideration as context. Plaintiffs must anticipate Noerr-Pennington and plead a coherent theory explaining how remaining non-petitioning conduct independently satisfies § 1—or preserve an argument for how petitioning evidence can be used without imposing liability for the petitioning itself.
  • Commercially routine screens (credit, lead times, specification deviations) can defeat “parallel refusal” inferences at the pleading stage unless the complaint alleges specific facts suggesting abnormality (e.g., deviation from standard terms for similarly situated buyers, internal admissions, plus factors, or structural facts making independent action implausible).
  • Administrative-record consistency can backfire. Where a plaintiff previously asserted in an agency process that domestic supply could not meet its specs, later allegations that deviations prove conspiratorial conduct may appear internally inconsistent.
  • Preservation matters as much as substance. The forfeiture holding signals that sophisticated antitrust plaintiffs must develop (and clearly articulate) any “context” theory in the district court rather than attempting to pivot on appeal.

4. Complex Concepts Simplified

Noerr-Pennington doctrine
A rule that generally immunizes efforts to influence the government (legislatures, agencies, courts) from antitrust liability—even if the goal is to harm competitors—because petitioning is protected and antitrust law targets market conduct, not political/administrative advocacy.
Section 1 of the Sherman Act (agreement requirement)
Section 1 targets contracts, combinations, or conspiracies that restrain trade. The key element is an agreement. Similar behavior by competitors is not enough unless facts plausibly suggest they agreed rather than acted independently.
Parallel conduct and “plus factors” under Twombly
Competitors often behave similarly for legitimate reasons (same market conditions, same incentives). To plead conspiracy, a plaintiff must add context that makes agreement more plausible than independent action—such as communications reflecting coordination, actions against self-interest absent agreement, or other “plus factors.”
Concerted refusal to deal (group boycott) vs. unilateral refusal
A single firm may generally choose its customers. Antitrust problems arise when multiple firms coordinate to cut off a rival’s supply or market access. The complaint must plausibly show the refusal was coordinated.
Forfeiture on appeal
If a party does not raise an argument in the district court, the appellate court usually will not consider it. Here, that rule prevented JSW from reframing its case around a “petitioning-as-context” theory for the first time on appeal.
Exhibits control over allegations
When documents attached to (or properly considered with) the complaint conflict with a party’s characterization, courts treat the documents as controlling. This limits a plaintiff’s ability to plead around inconvenient text.

5. Conclusion

JSW Steel (USA) v. Nucor affirms a strict pleading approach to § 1 boycott theories tied to regulatory processes: once Noerr-Pennington removes petitioning conduct from the liability calculus (and where any “context” theory is not preserved), plaintiffs must plausibly allege an agreement using non-petition marketplace facts that do more than describe commercially rational parallel behavior. The decision reinforces that ordinary credit checks, capacity-driven lead times, and specification deviations—without well-pleaded facts showing discriminatory or coordinated application—will usually not suffice to transform parallelism into a plausible antitrust conspiracy under Twombly.