NHK Spring Price-Fixing: 8 Years, Global Cartel, $28.5M Fine, Zero Restitution

How NHK Spring Rigged the Global Hard Drive Market for Nearly a Decade
Corporate Accountability Project  |  Investigative Report  |  Antitrust & Market Manipulation

Rigged From the Start: How NHK Spring Corrupted the Global Hard Drive Market for Nearly a Decade

A Japanese industrial giant pleaded guilty to criminal price-fixing, pocketed inflated profits on every hard drive sold worldwide, and then tried to escape a civil lawsuit on a legal technicality. A federal appeals court said no.

TL;DR: What Happened

NHK Spring Co., Ltd., a Japanese manufacturing giant, ran a secret criminal conspiracy from at least 2008 to 2016 to rig prices on a component found inside virtually every hard drive on the planet. The company pleaded guilty to federal criminal charges in 2019, paid a $28.5 million fine, and then tried to use complex international trade law to block victims from recovering any civil damages. A federal appeals court reversed that attempt in January 2026, sending the case back for trial.

Read on to understand the full scope of the scheme, who it harmed, and why the legal fight matters for every person who bought a computer, gaming console, or server in the last 15 years.

A Conspiracy Hidden Inside Every Hard Drive You’ve Ever Owned

Every time you save a file, stream a game, or back up a photo, a tiny mechanical miracle takes place. Inside your hard drive, a precision component called a suspension assembly holds a recording head just 12 nanometers above a spinning platter, moving at 150 to 170 miles per hour. The engineering challenge is staggering: it is the equivalent of a 747 aircraft flying at full speed one-sixteenth of an inch above a jagged desert surface.

That component, invisible to consumers and irreplaceable in function, became the target of a years-long criminal conspiracy. NHK Spring Co., Ltd., one of Japan’s largest industrial manufacturers, quietly agreed with a competitor to rig the prices of suspension assemblies sold around the world. The scheme ran from at least June 2008 to at least April 2016. 🕵️

This was not a paperwork violation. NHK’s own officers and employees held meetings with rival executives where they agreed to stop competing on price, to fix the prices of suspension assemblies, and to divide up their market share among themselves. They shared confidential pricing quotes before bidding. They used stolen competitor information as a reference point for their own bids. One NHK sales executive even drafted a job posting requiring the successful candidate to “find out competitor’s information, pricing information,” because he considered illegal intelligence-gathering to be simply part of the job.

When senior NHK executives in Yokohama caught wind of the explicit job posting, their advice was not to stop the practice. Their advice was to remove the incriminating language and convey it verbally instead.

The Scale of the Conspiracy
8+ Years the price-fixing conspiracy operated (at least June 2008 to April 2016)
$28.5M Criminal fine paid by NHK Spring under the U.S. Department of Justice plea agreement
8+ Major tech companies sold price-fixed components, including IBM, Samsung, Toshiba, Western Digital, Hitachi, and Fujitsu
2019 Year NHK pleaded guilty to federal criminal price-fixing charges under the Sherman Antitrust Act

Inside the Allegations: How the Bid-Rigging Actually Worked

Understanding the mechanics of this conspiracy requires a brief look at how the global hard drive supply chain actually functions, because NHK’s scheme was specifically engineered to exploit it.

Seagate Technology LLC, headquartered in California, is one of the world’s leading hard drive manufacturers. Seagate does not manufacture suspension assemblies in-house. It buys them from outside suppliers, primarily NHK Spring. By the time the conspiracy was running at full speed, the suspension assembly manufacturing industry had consolidated so severely that only two main players remained. NHK, despite consistently bidding as the highest-priced supplier on Seagate’s proposals, regularly won the majority of Seagate’s business anyway. That outcome, which should have been an immediate red flag, was the direct result of the conspiracy.

Here is how the rigging worked in practice. Every quarter, Seagate’s Commodities Management Team (CMT), operating out of Minnesota, would send a complex pricing grid to each suspension assembly supplier. Suppliers would respond with their bids across multiple dimensions: prototypes, mass-production prices, specific models, volume bands, and individual programs. These bids, called “requests for quotation” or RFQs, were then negotiated by Seagate’s CMT on U.S. soil.

“NHK’s head of American SA sales would discuss specific proposed RFQ responses for a given Seagate product with his competitors. Next, he would relay the contents of these discussions to top NHK executives in Yokohama.”

U.S. Court of Appeals, Ninth Circuit, Opinion No. 24-4470 (January 8, 2026)

Before NHK submitted its bids, its head of American suspension assembly sales coordinated with competitors. The collusive pricing information flowed back to NHK executives in Japan, including one executive who was later indicted for his role in the conspiracy. Those inflated bid numbers then became the “agreed-upon prices” that Seagate’s CMT in Minnesota accepted and transmitted to Seagate’s overseas subsidiaries in Thailand and Singapore, who were required to purchase at exactly those prices. The foreign subsidiaries had zero authority to negotiate. They entered purchase orders at the times, quantities, and prices that U.S. headquarters dictated, full stop.

The result was a perfectly functioning corruption engine: price-fixing happened in the United States, inflated prices radiated outward to every corner of Seagate’s global supply chain, and NHK collected supracompetitive profits on every single transaction. 💰

Profit-Maximization at All Costs: Corporate Greed Behind Closed Doors

The picture painted in the court record is one of deliberate, sustained corporate greed operating at the highest executive levels. This was not rogue behavior by a single salesperson. NHK’s conspiracy involved coordination between its American sales leadership and senior executives in its Japanese headquarters. One of those executives was indicted. Another openly described using competitor pricing information as “reference” for NHK’s own bids, treating the illegal practice as standard operating procedure.

The audacity of the scheme is underscored by the job posting incident. An NHK executive publicly listed “find out competitor’s pricing information” as a formal job requirement, which would have advertised to the entire industry that NHK considered criminal intelligence-gathering to be legitimate business development. When headquarters caught wind of the posting, the correction was not to stop the practice. The correction was to hide it better.

This is corporate ethics reduced to its barest form: not “do not engage in illegal conduct,” but rather “do not write down the illegal conduct.”

Meanwhile, the financial rewards were significant. NHK consistently won the majority of Seagate’s suspension assembly business even while bidding at the highest prices. In a normal competitive market, the highest-priced bidder loses. In a rigged market, all bidders share the inflated price, and the winner is whoever the conspirators decide should win. NHK had structured the game so that it could not lose.

The Economic Fallout: Who Actually Paid for This Conspiracy

Corporate price-fixing does not stay neatly inside the supply chain. It flows downstream, and ultimately it is consumers who absorb the cost. 📉

Every hard drive Seagate manufactured during the conspiracy period contained suspension assemblies purchased at artificially inflated prices. Those inflated costs were baked into the cost of hard drives sold to retailers, and ultimately to consumers worldwide. Anyone who bought a computer, a gaming console, an enterprise server, or an external hard drive between 2008 and 2016 was almost certainly paying a price that reflected NHK’s illegal markups, even if they had never heard of a suspension assembly in their lives.

The list of companies NHK sold price-fixed components to reads like a who’s-who of the global technology industry: Seagate, Toshiba, Western Digital, Quantum, IBM, Fujitsu, Samsung, and Hitachi. That list represents the overwhelming majority of hard drives manufactured during the relevant period. The conspiracy’s reach extended into virtually every segment of the consumer electronics market.

Seagate’s foreign subsidiaries, operating in Thailand and Singapore, overpaid for every suspension assembly they purchased because NHK’s inflated U.S. prices served as the mandatory pricing floor for global purchases. The Ninth Circuit’s January 2026 opinion confirms that Seagate’s foreign entities “lacked any authority to decide on any terms of purchase, whether price, quantity, or even the timing of their orders.” They were captive buyers in a rigged market.

Regulatory Capture and Legal Loopholes: How the System Let This Happen

NHK did not run this conspiracy in a legal vacuum. American antitrust law, specifically the Sherman Act, broadly prohibits price-fixing and provides for treble damages: successful plaintiffs can recover three times their actual losses. In theory, this framework creates a powerful deterrent against exactly the kind of conduct NHK engaged in.

In practice, NHK bet that the complexity of international trade law would protect it from civil accountability even after it pleaded guilty to criminal charges. The specific legal mechanism it exploited is the Foreign Trade Antitrust Improvements Act (FTAIA), a 1982 statute that Congress intended to clarify when U.S. antitrust law applies to international transactions.

NHK’s legal theory was elegant in its cynicism. Yes, we ran a criminal price-fixing conspiracy that affected U.S. commerce. Yes, we pleaded guilty. But the companies that paid the inflated prices overseas are foreign entities. Foreign entities buying goods in foreign countries cannot sue us in American courts, no matter where the conspiracy was centered or how directly the U.S. prices flowed into the foreign overcharges.

The government chose not to seek restitution in the criminal case specifically because it assumed civil remedies would be available to private parties. NHK then tried to eliminate those civil remedies entirely.

Analysis based on U.S. v. NHK Spring Co. Ltd. and Ninth Circuit Opinion No. 24-4470

The district court initially sided with NHK, granting partial summary judgment and blocking much of Seagate’s civil claims. The Ninth Circuit reversed that decision in January 2026, finding that Seagate had alleged a legally viable theory: NHK’s price-fixing in the United States set inflated prices that Seagate’s foreign subsidiaries were then contractually required to accept, creating a direct causal chain from domestic wrongdoing to foreign injury.

This legal gray zone, the gap between a criminal guilty plea and civil accountability for the victims of that crime, represents a significant structural failure in corporate accountability. NHK admitted criminal wrongdoing. The U.S. Department of Justice extracted a $28.5 million fine. But the actual victims of the price-fixing, the companies and consumers who overpaid for hard drives, faced years of litigation just to establish the basic right to seek compensation.

Corporate Accountability Fails the Public: The $28.5 Million That Changed Nothing

Let’s put the $28.5 million criminal fine in context. NHK Spring is a major Japanese industrial conglomerate with operations across dozens of countries. The conspiracy ran for at least eight years, affecting every major hard drive manufacturer on the planet. The suspension assembly market, though specialized, is foundational to a global electronics industry worth hundreds of billions of dollars annually.

A $28.5 million fine is not accountability. It is a cost of doing business. 🏛️

The U.S. Department of Justice explicitly chose not to seek restitution for victims in the criminal case, stating in court filings that it declined to pursue restitution “in light of the availability of civil causes of action.” The government, in other words, outsourced victim compensation to the civil litigation system, expecting that companies harmed by the conspiracy would be able to sue and recover their losses.

NHK then spent years fighting in federal court to make sure those civil causes of action were unavailable. The district court initially agreed with NHK’s legal theory, blocking civil claims from Seagate’s foreign subsidiaries. Only after a successful appeal to the Ninth Circuit, decided in January 2026, did those claims survive to see a trial.

No NHK executive went to prison for the conspiracy itself, though one was indicted. The company paid a fine that, relative to the scale and duration of the misconduct, amounted to a small fraction of the supracompetitive profits it collected. And victims had to fight a separate seven-year civil war just to get to the point of being heard.

This is the accountability gap that corporate legal strategy is designed to exploit: plead guilty, pay a manageable fine, and then litigate aggressively to prevent any further financial consequences.

Timeline of the NHK Spring Price-Fixing Conspiracy
Before June 2008
NHK Spring begins conspiring with a competitor to fix prices and allocate market share for hard drive suspension assemblies sold in the United States and worldwide.
2008–2016
NHK executives in the United States exchange confidential pricing quotes with competitors before submitting bids to Seagate and other major hard drive manufacturers. Seagate’s foreign subsidiaries in Thailand and Singapore are required to accept the inflated, U.S.-set prices.
At least April 2016
The conspiracy ends. NHK had won the majority of Seagate’s suspension assembly business for years, despite consistently bidding as the highest-priced supplier.
July 2019
NHK Spring pleads guilty to criminal price-fixing under the Sherman Antitrust Act. The U.S. Department of Justice secures a $28.5 million criminal fine. The DOJ declines to seek restitution for victims, expecting civil lawsuits to provide compensation.
2019–2021
Seagate files a civil antitrust lawsuit in the Northern District of California. Seagate amends its complaint twice as the case develops through discovery.
May 2023
The district court issues a mixed ruling, finding some of Seagate’s foreign suspension assembly purchases were “wholly foreign transactions” ineligible for Sherman Act relief, while denying summary judgment on others.
November 2023
After NHK moves for reconsideration, the district court reverses its prior partial denial and grants full partial summary judgment in NHK’s favor, blocking all claims arising from foreign suspension assembly purchases.
June 2025
The Ninth Circuit hears oral arguments in San Francisco. NHK admits at argument that suspension assembly prices were negotiated quarterly through the U.S.-based RFQ process.
January 8, 2026
The Ninth Circuit vacates the district court’s orders and remands for further proceedings. The court finds Seagate has alleged a viable theory that NHK’s domestic price-fixing directly caused its foreign subsidiaries to overpay. The case returns to trial court.

The Language of Legitimacy: How Legal Complexity Shields Corporate Wrongdoers

One of the most striking aspects of this case is the role that legal technicality plays in shielding a company that has already admitted criminal wrongdoing. NHK Spring did not deny fixing prices. It did not contest the DOJ’s findings. It pleaded guilty in open court and paid its fine. And then it spent the better part of a decade arguing that the companies it victimized lacked the legal standing to recover damages in an American court.

The FTAIA, a statute written to protect American consumers and businesses from foreign anticompetitive conduct, became NHK’s primary shield against accountability to the very companies it harmed. The legal arguments are dense: import commerce exclusions, domestic effects exceptions, proximate causation requirements, direct purchaser standing rules. Each term of art creates another hurdle for victims to clear, and each hurdle NHK can win means another round of appeals and another few years of delay.

This is how corporate legal strategy monetizes complexity. The more intricate the statutory framework, the more expensive and time-consuming litigation becomes, and the more likely it is that smaller victims simply give up. Seagate, as a major corporation with resources for elite litigation, could afford to fight. Individual consumers who paid inflated prices for hard drives could not.

How Capitalism Exploits Delay: Seven Years and Counting

NHK Spring’s criminal conduct ended no later than April 2016. As of January 2026, the civil litigation over that conduct is still in its early stages, more than nine years after the conspiracy concluded and nearly seven years after NHK pleaded guilty.

Every year of delay benefits the defendant. Litigation costs accumulate on the plaintiff’s side. Witnesses’ memories fade. Key executives retire or become unavailable. Documents get lost in corporate transitions. And the longer the case drags on, the more likely it is that some plaintiffs settle for less than full compensation simply to end the uncertainty.

For NHK, legal delay is not merely a tactical option. It is a structural feature of corporate accountability that transforms admitted criminal conduct into an extended negotiation over how much, if anything, the victims will ultimately recover. The Ninth Circuit’s January 2026 decision is a significant setback for NHK’s delay strategy, but the case now returns to district court for further proceedings, including additional briefing on the proximate causation question. The litigation will continue. ⏳

Global Parallels: Price-Fixing as a Feature, Not a Bug

The NHK Spring conspiracy did not emerge in isolation. The suspension assembly market is one node in a global pattern of industrial cartel behavior that has infected supply chains across the technology sector for decades.

The Ninth Circuit’s own opinion references the In re DRAM litigation, a major case involving a price-fixing conspiracy among manufacturers of computer memory chips that affected buyers worldwide. The LCD panel cartel, litigated in Hui Hsiung, involved manufacturers of display screens fixing prices for components found in televisions, laptops, and monitors. The automotive parts cartels of the 2010s affected components from power steering systems to seatbelts. The pattern is consistent: in concentrated industrial supply chains with few competitors, the temptation to collude rather than compete is powerful, and the mechanisms for doing so are well-understood by executives who move through these industries.

Corporate social responsibility statements do not prevent cartels. Compliance programs do not prevent cartels. What prevents cartels is robust antitrust enforcement, meaningful criminal penalties including imprisonment, and civil liability that makes price-fixing genuinely unprofitable. The NHK case illustrates the gap between the rhetoric of corporate ethics and the reality of what major companies do when they believe the risk of detection is low and the rewards are high.

Wealth Disparity and Corporate Greed: Who Benefits, Who Pays

There is a straightforward economic truth buried in the legal complexity of this case. When NHK fixed prices for suspension assemblies, it transferred wealth from buyers, including ultimately consumers, to NHK’s shareholders and executives. Every dollar of supracompetitive profit NHK collected was a dollar extracted from the companies and individuals who paid inflated prices for the products those components ended up in.

NHK’s conspiracy operated for at least eight years, spanning billions of dollars in global hard drive sales. The $28.5 million criminal fine, while the largest fine the DOJ sought in the case, represented a fraction of the total economic harm. Treble damages in a successful civil case could change that calculus significantly, which is precisely why NHK fought so hard to eliminate civil liability entirely.

The structural dynamic here is characteristic of corporate misconduct under modern capitalism. Profits from illegal conduct flow upward, concentrated among shareholders and executive compensation structures. The costs flow outward, dispersed among millions of consumers who paid slightly higher prices for electronics, unaware that a Japanese industrial cartel was taking a hidden cut of every transaction.

Pathways for Reform: What Would Actually Fix This

The NHK case reveals specific, addressable failures in how the United States holds corporate wrongdoers accountable. Each failure suggests a corresponding reform. 📋

Criminal Fines Must Reflect Actual Harm

A $28.5 million fine for a conspiracy that operated for eight or more years across billions of dollars in global trade is not a deterrent. It is a license fee. Criminal fines in cartel cases should be calibrated to the total overcharge, not to a percentage of U.S. sales, and they should eliminate any possibility that the conspiracy was profitable on net.

Restitution Should Be the Default, Not the Exception

The DOJ’s decision not to seek restitution in the NHK criminal case because civil remedies were “available” effectively outsourced victim compensation to a civil litigation system that is expensive, slow, and structurally biased toward defendants with resources. Criminal restitution should be the default outcome in price-fixing cases, with the burden on prosecutors to justify any departure from that standard.

Executive Liability Must Accompany Corporate Fines

The NHK conspiracy reached senior executives in both the United States and Japan. Criminal accountability for individuals, not just companies, is the most effective deterrent against corporate wrongdoing. Corporate fines are ultimately paid by shareholders, including pension funds and ordinary investors. Individual imprisonment creates a personal accountability that no fine can replicate.

The FTAIA Needs Clarification

The Foreign Trade Antitrust Improvements Act has become a mechanism for sophisticated defendants to escape accountability for conduct they have already admitted was criminal. Congress should clarify that companies which plead guilty to domestic price-fixing conspiracies cannot then use the FTAIA to block civil claims from parties who paid prices set by those conspiracies, regardless of where the physical transactions occurred.

Conclusion: The Human Cost Behind the Legal Abstractions

Strip away the statutory acronyms and the procedural history, and what remains is a simple story. A major Japanese corporation decided that the rules of fair competition did not apply to it. Its executives met in secret, agreed on prices with competitors, and suppressed competition in a market that underlies virtually every computing device on the planet. They did this for at least eight years. They made it part of the job description.

They pleaded guilty to criminal charges, paid a fine that amounted to a fraction of their ill-gotten gains, and then spent years in federal court arguing that their victims had no legal right to sue them. They nearly succeeded. A district court agreed with them twice. Only a federal appeals court, in January 2026, reversed that outcome and sent the case back for a real reckoning.

Every person who bought a computer, an external drive, a gaming console, or a server between 2008 and 2016 has a stake in how this case ends. They likely paid more than they should have because NHK rigged the market. Most of them will never know it. None of them will ever see a refund. But the legal battle over whether Seagate’s subsidiaries can recover their overpayments is, at its core, a battle over whether corporate crime has real consequences or merely inconvenient ones.

That question matters for every market, every industry, and every consumer in the global economy.


Frivolous or Serious: An Assessment of the Lawsuit’s Legitimacy

This lawsuit is serious, not frivolous. The core facts are not in dispute. NHK Spring pleaded guilty to federal criminal price-fixing charges in 2019. The plea agreement confirms that the conspiracy had a direct, substantial, and reasonably foreseeable effect on interstate and import trade and commerce in the United States. NHK admitted to fixing prices, allocating market shares, and exchanging confidential pricing information with competitors over a period of at least eight years.

The legal question that made this case difficult was not whether wrongdoing occurred, but whether the specific foreign subsidiaries that paid the inflated prices could bring civil claims under U.S. antitrust law. The Ninth Circuit’s January 2026 ruling found that Seagate has alleged a legally viable theory: U.S.-negotiated prices served as the mandatory pricing floor for all global purchases, creating a direct causal chain between domestic price-fixing and foreign overcharges.

The case faces further scrutiny on remand, specifically on the proximate causation question. But it rests on a guilty plea, a detailed factual record, and a legal theory that three federal appellate judges found plausible and legally coherent. This is precisely the type of case antitrust law was designed to address.

Frequently Asked Questions
What is a suspension assembly, and why does it matter to ordinary consumers?
A suspension assembly is a precision component inside a hard disk drive that holds the recording head in place above the spinning data platters. Without it, hard drives cannot function. Because suspension assemblies are found in virtually every hard drive, a price-fixing conspiracy that inflates their cost raises the price of every hard drive manufactured, which in turn raises the price of every computer, gaming console, and data server that uses hard drives for storage. Consumers pay those higher prices without any awareness that a cartel is extracting a hidden premium from their purchases.
NHK already pleaded guilty and paid a fine. Why is civil litigation still necessary?
Criminal fines paid to the government do not compensate the companies or individuals who were overcharged. The $28.5 million NHK paid went to the U.S. Treasury, not to Seagate or to the other companies that paid inflated prices for suspension assemblies. Civil litigation is the mechanism through which victims recover their actual losses. The DOJ explicitly chose not to seek criminal restitution, expecting civil suits to fill that role. NHK then tried to block those civil suits entirely. The Ninth Circuit’s January 2026 ruling keeps those civil claims alive.
What does the FTAIA have to do with this, and why is it controversial?
The Foreign Trade Antitrust Improvements Act of 1982 was designed to limit U.S. antitrust law to conduct that harms American consumers and businesses, preventing American courts from becoming the world’s antitrust tribunal for purely foreign transactions. In this case, NHK used the FTAIA to argue that purchases by Seagate’s Thai and Singaporean subsidiaries were wholly foreign transactions beyond the reach of U.S. antitrust law, even though the prices for those purchases were set through a rigged U.S. bidding process. The controversy is that a guilty plea to domestic price-fixing did not automatically guarantee civil accountability for the foreign victims of that same conspiracy.
Could individual consumers who bought hard drives during this period file their own claims?
Consumers who bought finished hard drives during the conspiracy period were indirect purchasers of the price-fixed suspension assemblies. U.S. antitrust law generally limits direct recovery to direct purchasers under a doctrine called Illinois Brick, though many states have laws allowing indirect purchaser claims. Class action lawsuits in price-fixing cases sometimes provide compensation to end consumers, though individual recoveries are typically small. The Ninth Circuit’s opinion notes that Seagate Technology LLC itself may have standing as an indirect purchaser, which the district court will need to evaluate on remand.
What can ordinary people do to push back against corporate price-fixing and demand real accountability?
Citizens and consumers have several concrete options. First, support antitrust enforcement funding: the DOJ Antitrust Division and the FTC are chronically underfunded relative to the complexity of the markets they police. Contact elected representatives to advocate for increased enforcement budgets and stronger criminal penalties, including mandatory prison terms for price-fixing conspirators. Second, pay attention to class action settlements in antitrust cases: these often provide claim processes where affected consumers can recover small amounts, and participation signals to companies that the legal risk of price-fixing extends to end consumers. Third, support legislative reform of the FTAIA to close the loophole that allows companies to plead guilty to domestic price-fixing while blocking civil claims from foreign victims. Fourth, demand that corporate governance reforms include genuine antitrust compliance programs with real consequences for executives, not just boilerplate compliance language in annual reports. Corporate misconduct thrives in the gap between formal policy and actual accountability.

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