March 9, 2020. In an order dated March 9, 2020, the Honorable Donetta Ambrose of the Western District of Pennsylvania denied defendants’ several motions to dismiss in In re Diisocyanates Antitrust Litigation. The case alleges a broad price fixing conspiracy among several manufacturers of polyurethane input chemicals colloquially referred to as MDI and TDI. Defendants in fact brought eight separate motions to dismiss, all of which plaintiffs defeated. The Court further ordered defendants to respond to plaintiffs’ previously-served discovery requests within 30 days. Plaintiffs are represented by co-lead counsel Hartley LLP and Hausfeld LLP.

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Hartley LLP represents victims of anticompetitive conduct like price fixing agreements, unfair competition, tying agreements and monopolization. Its attorneys have worked to recover hundreds of millions of dollars in damages for their clients. For more information about their practice, visit