DuPont v. Kolon: A $919.9 Million Kevlar Verdict and the Fragile Foundations of Trade-Secret Damages

E.I. du Pont de Nemours & Co. v. Kolon Industries, Inc., Civil Action No. 3:09cv58 (E.D. Va.), produced one of the defining trade-secret damages verdicts of its generation — and then a reminder that even a nine-figure award rests entirely on the liability findings beneath it. On September 14, 2011, a federal jury in Richmond found that Kolon Industries, a Korean manufacturer, had willfully and maliciously misappropriated DuPont’s trade secrets for producing para-aramid fiber — the technology behind Kevlar — and awarded DuPont $919.9 million in compensatory damages. The court added punitive damages capped at $350,000 under Virginia law and later entered a sweeping injunction. On April 3, 2014, the Fourth Circuit vacated the judgment (No. 12-1260) and remanded for a new trial. The case settled in 2015 for $275 million, alongside an $85 million criminal fine.

At a glance

• Case: E.I. du Pont de Nemours & Co. v. Kolon Industries, Inc., Civil Action No. 3:09cv58 (U.S. District Court for the Eastern District of Virginia); appeal No. 12-1260 (4th Cir.)
• Key dates: Jury verdict September 14, 2011; Fourth Circuit vacatur April 3, 2014; civil settlement and criminal guilty plea April 30, 2015
• Damages: $919.9 million compensatory under the Virginia Uniform Trade Secrets Act; $350,000 punitive (Virginia’s statutory cap); jury found willful and malicious misappropriation
• Outcome: Verdict vacated for an evidentiary error going to whether the information qualified as a trade secret; case resolved by settlement ($275M civil) and Kolon’s guilty plea ($85M fine)

How DuPont built a nine-figure damages case

DuPont’s claim arose under the Virginia Uniform Trade Secrets Act (VUTSA), the Commonwealth’s enactment of the model statute. VUTSA — like the Uniform Trade Secrets Act generally and the later federal Defend Trade Secrets Act — authorizes recovery for the plaintiff’s actual loss caused by misappropriation and for any unjust enrichment the defendant gained that the actual-loss figure does not already capture. A plaintiff may also recover exemplary damages where the misappropriation is willful and malicious.

DuPont alleged that Kolon, seeking to accelerate its own para-aramid business, recruited former DuPont employees as consultants and paid them to disclose closely held manufacturing know-how. That know-how was not a single formula but a portfolio of process secrets — the accumulated, hard-won detail of how to spin a high-performance aramid fiber at commercial scale. The damages theory tracked the value of what Kolon obtained: the development costs and competitive advantage that decades of DuPont investment represented, translated into the loss DuPont suffered when a competitor short-circuited that investment.

The jury accepted the model and returned $919.9 million — at the time among the largest trade-secret awards ever rendered. The willful-and-malicious finding triggered exemplary damages, but here Virginia’s law mattered: the Commonwealth caps punitive damages at $350,000 by statute, so the additur to a near-billion-dollar compensatory figure was, in relative terms, trivial. That contrast is itself instructive. Under the federal DTSA, exemplary damages can reach twice the compensatory award; under VUTSA, the punitive ceiling is fixed and low. A plaintiff choosing a forum and a statute is, in part, choosing how much its punishment theory is worth.

Why the award did not survive

The Fourth Circuit’s reversal had nothing to do with the damages methodology and everything to do with the liability foundation. Before trial, the district court granted DuPont’s motion in limine excluding evidence that Kolon wanted to use to show that some of the claimed secrets had been disclosed in earlier litigation — the Akzo proceedings — or were otherwise in the public domain. The appellate court held that exclusion was an abuse of discretion: it deprived Kolon of the chance to argue that one or more of the asserted items failed the threshold requirement of every trade-secret claim, namely that the information actually be secret.

That ruling is the quiet lesson of the case for anyone focused on damages. Damages are derivative. A $919.9 million figure is only as durable as the finding that each piece of information underlying it qualifies as a protectable trade secret. If a defendant is wrongly prevented from contesting secrecy, the entire award — however carefully modeled — is built on sand. The size of the number does not insulate it; if anything, the larger the award, the more a reviewing court will scrutinize the liability record that generated it.

The criminal coda and the real price

When the case returned for retrial, it did not get there. In April 2015, Kolon resolved both the civil and criminal exposure at once: a $275 million civil settlement with DuPont and a guilty plea to conspiracy to convert trade secrets, accompanied by an $85 million criminal fine. The combined $360 million is a fraction of the vacated verdict — a reminder that the headline number a jury returns and the recovered number a defendant ultimately pays often diverge sharply, and that the gap is usually a function of appellate risk on liability rather than disagreement about the damages math.

Open questions

The case leaves unresolved how a properly instructed jury would have valued the misappropriation had Kolon been allowed to attack secrecy item by item. If some of the asserted secrets fell out as publicly known, the actual-loss and unjust-enrichment figures would have required apportionment — a problem that has since become central to trade-secret damages (as in the disgorgement context of TAOS v. Renesas). The settlement foreclosed that exercise, leaving the relationship between the breadth of an asserted secrets portfolio and the defensibility of an aggregate damages number an open question that recurs in every multi-secret case.

Implications

• Damages live or die with secrecy. A large award is only as sound as the proof that each asserted item is genuinely secret; protect the liability record before celebrating the number.
• Watch the in limine fights. Excluding a defendant’s public-domain or prior-disclosure evidence is high-risk error; both sides should treat secrecy-evidence rulings as outcome-determinative.
• Statute selection shapes punishment. Virginia caps punitive damages at $350,000; the federal DTSA permits up to 2x exemplary damages. The choice of statute and forum can dwarf or shrink the deterrent component.
• The verdict is not the recovery. Appellate exposure on liability routinely compresses a headline award into a far smaller settlement.

Frequently asked questions

Did DuPont ultimately keep the $919.9 million? No. The Fourth Circuit vacated that judgment in 2014. The matter resolved in 2015 for a $275 million civil settlement, plus an $85 million criminal fine Kolon paid after pleading guilty.

Why was such a large verdict reversed? Not because of the damages calculation, but because the trial court had excluded evidence Kolon wanted to use to show some of the claimed information was already public — evidence going to whether the material qualified as a trade secret at all.

How do exemplary damages here compare to federal law? Virginia caps punitive damages at $350,000 regardless of the compensatory figure. The federal Defend Trade Secrets Act, by contrast, allows exemplary damages up to twice the compensatory award for willful and malicious misappropriation.

Authorities and sources

• E.I. DuPont De Nemours & Co. v. Kolon Industries, Inc., No. 12-1260 (4th Cir. Apr. 3, 2014): opinion summary (Justia); unpublished opinion (Fourth Circuit).
• Companion appeal and evidentiary discussion: Kolon Industries v. E.I. DuPont (FindLaw).
• Criminal resolution: U.S. Department of Justice, “Kolon Industries Inc. Pleads Guilty for Conspiring to Steal DuPont Trade Secrets Involving Kevlar Technology”.
• Settlement and case overview: Crowell, “Bellwether DuPont-Kolon Trade Secrets Case Resolved Through Civil Settlement and Criminal Guilty Plea”; Wikipedia, “DuPont v. Kolon Industries”.