Seagate Technology LLC v. Nhk Spring Co., Ltd.

CourtCourt of Appeals for the Ninth Circuit
DecidedJanuary 8, 2026
Docket24-4470
StatusPublished

This text of Seagate Technology LLC v. Nhk Spring Co., Ltd. (Seagate Technology LLC v. Nhk Spring Co., Ltd.) is published on Counsel Stack Legal Research, covering Court of Appeals for the Ninth Circuit primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Seagate Technology LLC v. Nhk Spring Co., Ltd., (9th Cir. 2026).

Opinion

FOR PUBLICATION

UNITED STATES COURT OF APPEALS FOR THE NINTH CIRCUIT

SEAGATE TECHNOLOGY LLC; No. 24-4470 SEAGATE TECHNOLOGY D.C. No. (THAILAND) LTD.; SEAGATE 3:19-md-02918- SINGAPORE INTERNATIONAL MMC HEADQUARTERS PTE, LTD; SEAGATE TECHNOLOGY INTERNATIONAL, OPINION

Plaintiffs - Appellants,

v.

NHK SPRING CO., LTD.; NHK INTERNATIONAL CORPORATION; NHK SPRING (THAILAND) CO., LTD.; NAT PERIPHERAL (DONG GUAN) CO., LTD.; NAT PERIPHERAL (H.K.) CO., LTD.,

Defendants - Appellees.

Appeal from the United States District Court for the Northern District of California Maxine M. Chesney, District Judge, Presiding 2 SEAGATE TECH. LLC V. NHK SPRING CO. LTD.

Argued and Submitted June 6, 2025 San Francisco, California

Filed January 8, 2026

Before: Consuelo M. Callahan and Kenneth K. Lee, Circuit Judges, and Scott H. Rash, District Judge. *

Opinion by Judge Lee

SUMMARY **

Antitrust

The panel vacated the district court’s partial summary judgment in favor of defendants NHK Spring Co., Ltd., et al. and remanded for further proceedings in an antitrust action brought under the Sherman Act by Seagate Technology LLC, an American company, and two Seagate foreign entities. The Seagate plaintiffs sought to bring antitrust claims against Japanese-owned NHK for unlawful price-fixing. In a separate federal criminal proceeding, NHK pleaded guilty to conspiring with its competitors to fix the price of suspension assemblies sold in the United States and elsewhere in the world. Seagate’s foreign entities bought

* The Honorable Scott H. Rash, United States District Judge for the District of Arizona, sitting by designation. ** This summary constitutes no part of the opinion of the court. It has been prepared by court staff for the convenience of the reader. SEAGATE TECH. LLC V. NHK SPRING CO. LTD. 3

those price-fixed suspension assemblies, which were incorporated into Seagate’s hard drives, outside the United States. The district court ruled that the Sherman Act did not extend to such foreign injury. The panel held that Seagate alleged a viable theory of extraterritorial reach under the Foreign Trade Antitrust Improvements Act, which provides that U.S. antitrust laws can apply, even if an injury occurs beyond U.S. borders, if the anticompetitive conduct (1) involves goods imported into the United States that Americans buy (the “import commerce” exclusion) or (2) has a direct effect on domestic commerce that in turn causes the foreign antitrust injury to the plaintiff (the “domestic effects” exception). The panel held that the import commerce exclusion did not apply because the suspension assemblies were not directly imported into the U.S. But under the domestic effects exception, Seagate sufficiently alleged that NHK’s price- fixing in the U.S., as reflected in a master product supply agreement negotiated in the U.S., led to the domestic harm of higher prices for the suspension assemblies in the U.S., and that effect also directly caused an antitrust injury abroad because Seagate’s foreign entities overpaid for the suspension assemblies based on the inflated U.S. price. The panel remanded to the district court to determine whether Seagate adduced sufficient evidence of proximate cause to survive summary judgment. 4 SEAGATE TECH. LLC V. NHK SPRING CO. LTD.

COUNSEL

Eamon P. Joyce (argued), Sidley Austin LLP, New York, New York; David R. Carpenter and Nicole M. Baade, Sidley Austin LLP, Los Angeles, California; Jeremy Rozansky, Sidley Austin LLP, Washington, D.C.; Robert N. Hochman and Shirin Mahkamova, Sidley Austin LLP, Chicago, Illinois; Steffen N. Johnson and John B. Kenney, Wilson Sonsini Goodrich & Rosati, Washington, D.C.; Mikaela E. Evans-Aziz, Kenneth R. O'Rourke, and Jeff VanHooreweghe, Wilson Sonsini Goodrich & Rosati, San Francisco, California; Michael W. McConnell, Wilson Sonsini Goodrich & Rosati, Palo Alto, California; for Plaintiffs-Appellants. Michael F. Murray (argued), Craig Y. Lee, Carter C. Simpson, and Alexandra Glazer, Paul Hastings LLP, Washington, D.C.; Navi S. Dhillon, Paul Hastings LLP, San Francisco, California; for Defendants-Appellees. Aaron D. Van Oort, Kevin P. Wagner, and Kirsten L. Elfstrand, Faegre Drinker Biddle & Reath LLP, Minneapolis, Minnesota; Paul J. Riehle, Faegre Drinker Biddle & Reath LLP, San Francisco, California; for Amicus Curiae Professor Kenneth G. Elzinga. Kathleen W. Bradish and Randy Stutz, American Antitrust Institute, Washington, D.C., for Amicus Curiae American Antitrust Institute. Jennifer L. Williams and Megan A. Maitia, Summa LLP, Los Angeles, California, for Amicus Curiae Professor Cedric Ryngaert. SEAGATE TECH. LLC V. NHK SPRING CO. LTD. 5

OPINION

LEE, Circuit Judge:

American antitrust laws broadly prohibit anticompetitive conduct and authorize private parties to seek treble damages. Congress, however, largely closed our courthouse doors to antitrust claims based on injuries outside the United States. But it carved out two narrow exceptions under the Foreign Trade Antitrust Improvements Act (FTAIA). 15 U.S.C. § 6a. U.S. antitrust laws can still apply—even if the injury occurs beyond our borders—if the anticompetitive conduct (1) involves goods imported into the United States that Americans buy (the “import commerce” exclusion) or (2) has a direct effect on domestic commerce that in turn causes the foreign antitrust injury to the plaintiff (the “domestic effects” exception). In an increasingly globalized economy, it can sometimes be thorny, as in this case, to tease out when these narrow statutory provisions allow extraterritorial reach of our antitrust laws. Seagate Technology LLC (an American company based in California) and two Seagate foreign entities (Seagate Thailand and Seagate Singapore) argue that they can bring antitrust claims against Japanese-owned NHK Spring Co., Ltd. for unlawful price-fixing. In a separate federal criminal proceeding, NHK pleaded guilty to conspiring with its competitors to fix the price of “suspension assemblies” sold in the United States and elsewhere in the world. But Seagate’s foreign entities bought those price-fixed suspension assemblies—which are incorporated into Seagate’s hard drives—outside the United States. The district court thus granted partial summary 6 SEAGATE TECH. LLC V. NHK SPRING CO. LTD.

judgment for NHK, ruling that the Sherman Act did not extend to such foreign injury. We vacate the district court’s order because Seagate 1 has alleged a viable theory of extraterritorial reach under the FTAIA. According to Seagate’s complaint, NHK’s price- fixing scheme was reflected in a master product supply agreement negotiated in the United States with Seagate Technology LLC. That agreement reflected an artificially high price for suspension assemblies. Then this NHK- Seagate Technology LLC agreement in turn allegedly set the pricing parameters for Seagate’s foreign entities because they were obligated to accept those (fixed) prices in the agreement. Put another way, NHK’s price-fixing in the U.S. led to domestic harm (i.e., higher prices for the suspension assemblies in the United States), and that effect also directly caused an antitrust injury abroad (because Seagate’s foreign entities overpaid for the suspension assemblies based on the inflated U.S. price). We, however, remand for the district court to determine whether Seagate has adduced sufficient evidence of proximate cause to survive summary judgment. BACKGROUND I. Factual Background A. Seagate foreign entities buy SAs from NHK and other suppliers. Nearly every consumer electronic device needs a way to store data. Many devices—such as computers, gaming consoles, and servers—rely on hard disk drives (HDDs) for

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Seagate Technology LLC v. Nhk Spring Co., Ltd., Counsel Stack Legal Research, https://law.counselstack.com/opinion/seagate-technology-llc-v-nhk-spring-co-ltd-ca9-2026.