Certain Monomers and Oligomers From Taiwan: Final Affirmative Determination of Sales at Less Than Fair Value and Final Affirmative Critical Circumstances Determination
Published Date: 2/3/2026
Notice
Summary
The U.S. Department of Commerce found that certain chemicals called monomers and oligomers from Taiwan are being sold in the U.S. for less than their fair price. Because of this, extra duties will be applied starting February 3, 2026, to protect American businesses. This decision also recognizes that imports surged suddenly, triggering faster action to stop unfair pricing.
Analyzed Economic Effects
5 provisions identified: 0 benefits, 4 costs, 1 mixed.
130.23% Antidumping Duty Rate
Commerce found certain monomers and oligomers from Taiwan are being sold in the U.S. at less than fair value and set an estimated dumping margin of 130.23 percent for Eternal Materials, Qualipoly, Synth-Edge, and for all other producers. If the U.S. International Trade Commission (ITC) makes a final affirmative injury determination, Commerce will issue an antidumping duty order and require cash deposits of estimated antidumping duties at that 130.23 percent rate.
Retroactive Suspension of Liquidation Dates
Commerce instructed U.S. Customs and Border Protection to suspend liquidation of entries of these monomers and oligomers from Taiwan that were entered or withdrawn for consumption on or after June 11, 2025. Commerce directed CBP to discontinue suspension for entries on or after January 7, 2026, but to continue suspension for entries on or before January 6, 2026.
Adverse Facts Available for Non‑Participating Firms
Commerce applied adverse facts available (AFA) to Eternal Materials Co., Ltd.; Qualipoly Chemical Corporation; and Synth-Edge Advanced Material Co., Ltd. because they declined to participate, assigning each an estimated dumping margin of 130.23 percent. Those specific company margins are marked with an asterisk in the final determination.
Possible Refund if ITC Finds No Injury
Commerce will notify the U.S. International Trade Commission, which must decide within 45 days whether U.S. industry is materially injured. If the ITC finds no injury, the proceeding will be terminated, and all estimated duties deposited will be refunded and suspension of liquidation lifted.
No Offset for Export Subsidies
Commerce noted that in the companion countervailing duty investigation there were no countervailable export subsidies found, so Commerce did not reduce the dumping margins by any export subsidy rate when determining cash deposit rates.
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Key Dates
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