Korean monomers and oligomers AD order sets 65.72%–155.42% deposits

Commerce published an antidumping duty order covering certain multifunctional acrylate and methacrylate monomers and acrylated bisphenol-A epoxy-based oligomers from South Korea on July 28, 2026. The order follows Commerce's final less-than-fair-value determination and the U.S. International Trade Commission's affirmative material-injury determination.

The cash-deposit rates are 65.72 percent for Green Chemical Co., Ltd. and Green Life Science, 155.42 percent for Miwon Specialty Chemical Co., Ltd., 155.42 percent for Kukdo Chemicals Co. Ltd., and 65.72 percent for all other producers or exporters. Commerce states that the Miwon and Kukdo rates are based on facts available with adverse inferences.

The USITC's final affirmative injury determination was published in the Federal Register on July 16. Commerce therefore instructs CBP to reinstitute suspension of liquidation and cash-deposit collection from July 16, 2026. The order also reaches relevant unliquidated entries made on or after the January 5 preliminary determination, except entries made after the provisional-measures period expired and before the USITC determination was published.

Commerce identifies that gap as entries made from July 4 through July 15, 2026. Those entries are to be liquidated without regard to antidumping duties. The USITC also made a negative critical-circumstances determination, so Commerce intends CBP to lift suspension and refund estimated antidumping deposits for subject entries made from October 7, 2025 through January 4, 2026.

The written scope lists specific multifunctional acrylate and methacrylate monomers and acrylated bisphenol-A epoxy-based oligomers. It includes blends or mixtures containing at least 20 percent by weight of in-scope material and certain third-country processing, but excludes downstream products such as inks, coatings, and overprint varnishes that require only energy application to cure. The notice lists HTSUS subheadings 2916.12.5050, 2916.14.2050, 3824.99.2900, 3907.29.0000, and 3907.30.0000, and says subject merchandise may also enter under 2916.12.1000 and 3824.99.9397. The written description controls.

Action items

• Review Korean monomers, oligomers, blends, and third-country processed products against the full written scope and CAS-number list.
• Confirm the producer and exporter before applying the 65.72 percent or 155.42 percent cash-deposit rate.
• Segregate entries made from July 4 through July 15 from entries on or after July 16 and verify liquidation instructions with the broker.
• Identify qualifying October 7 through January 4 deposits that should be refunded after the negative critical-circumstances finding.
• Do not treat downstream-product labels or HTS classification alone as dispositive of scope.