MDI, TDI Chemical Products Antitrust Class Action Settlements

Individuals and entities who purchased methylene diphenyl diisocyanate or toluene diisocyanate chemical products directly from certain manufacturers in the United States, its territorie, or the District of Columbia between Jan. 1, 2016, and July 29, 2026, may be eligible to submit a claim for a payment from multiple class action settlements.

BASF Corp., Covestro LLC, Wanhua Chemical Co. Ltd., The Dow Chemical Co., Huntsman International LLC and Huntsman Corp. agreed to pay a combined $37,750,000 to settle class actions alleging they conspired to fix prices and restrict the supply of MDI and TDI, industrial chemicals widely used in the production of polyurethanes for construction, automotive, furniture and consumer goods.

BASF agreed to pay $3,000,000, Covestro agreed to pay $7,000,000, WCA agreed to pay $7,750,000, Dow agreed to pay $14,000,000 and Huntsman agreed to pay $6,000,000.

Who can file a claim?

Class members are individuals or entities that meet the following criteria:

• They purchased or received MDI or TDI products directly from the following companies or through controlled subsidiaries, agents, affiliates or joint ventures:
• Dow Chemical Co.
• Huntsman International LLC
• BASF Corp. or BASF SE
• Covestro LLC or Covestro AG
• Wanhua Chemical (America) Co. Ltd. or Wanhua Chemical Group Co. Ltd.
• Mitsui Chemicals Inc. or Mitsui Chemicals America Inc.
• Mitsui Chemicals & SKC Polyurethanes Inc. or MCNS Polyurethanes USA Inc.

• The purchase or receipt occurred in the United States, its territories or the District of Columbia between Jan. 1, 2016, and July 29, 2026.

How much are settlement payments?

Pro rata cash payment: Class members can submit a claim to receive a pro rata cash payment from the net settlement funds. The settlement administrator will determine the final payment amount by the eligible MDI and TDI purchases class members made during the class period.

How to claim a class action rebate

To receive a settlement payment, class members can file a claim online or complete the claim form they received with their notice and mail it to the settlement administrator.

Class members who want to amend or supplement their purchase amounts can submit the purchase audit request form online or print and complete the PDF form and mail it to the settlement administrator.

Settlement administrator's mailing address: In re: Diisocyanates Antitrust Litigation, c/o Kroll Settlement Administration LLC, P.O. Box 225391, New York, NY 10150-5391

The Wanhua (WCA) claim deadline is Oct. 13, 2026.

The Dow and Huntsman claim deadline is Oct. 19, 2026.

The BASF and Covestro claim deadline is Nov. 2, 2026.

Required proof and claim information

• To submit a claim online, class members must provide the class member ID from the settlement notice they received.
• To submit a purchase audit request form, class members must provide supporting documentation, which may include purchase orders, sales receipts or other proof of purchases.

Payout options

• Paper check mailed to the address provided

Settlement funds breakdown

The $37,750,000 settlement funds will include:

• Settlement administration costs: At least $450,000
• Attorneys' fees and costs: Up to $12,583,333
• Service awards to class representatives: $15,000-$25,000 each
• Payments to eligible claimants: Remaining settlement funds

Important dates

Wanhua (WCA) settlement:

• Deadline to file a claim: Oct. 13, 2026
• Exclusion deadline: Oct. 13, 2026

Dow and Huntsman settlements:

• Deadline to file a claim: Oct. 19, 2026
• Exclusion deadline: Oct. 19, 2026

BASF and Covestro settlements:

• Deadline to file a claim: Nov. 2, 2026
• Exclusion deadline: Nov. 2, 2026

Fairness hearing for all settlements: Dec. 7, 2026

When are the diisocyanates antitrust settlements payout date?

The settlement administrator will issue payments to approved claimants after the court resolves any appeals and grants final approval of the settlements.

Why are there class action settlements?

The class action lawsuit alleged Dow, Huntsman, BASF, Covestro and Wanhua conspired to fix prices and restrict the supply of MDI and TDI products, resulting in higher prices for purchasers. The plaintiffs claimed the companies coordinated plant shutdowns and price increases in violation of the Sherman Act.

The defendants deny any wrongdoing but agreed to settle to avoid the risk and expense of further litigation.

Sources

1. Official class notices
2. Official settlement website FAQ page