Certain Monomers and Oligomers From Taiwan: Final Affirmative Determination of Sales at Less Than Fair Value and Final Affirmative Critical Circumstances Determination

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Commerce International Trade Administration [A-583-879] AGENCY: Enforcement and Compliance, International Trade Administration, Department of Commerce. SUMMARY: The U.S. Department of Commerce (Commerce) determines that certain monomers and oligomers (monomers and oligomers) from Taiwan are being, or are likely to be, sold in the United States at less than fair value (LTFV) and determines that critical circumstances existed with respect to imports of subject merchandise from Taiwan. The period of investigation (POI) is January 1, 2024, through December 31, 2024. DATES: Applicable February 3, 2026. FOR FURTHER INFORMATION CONTACT: Jaron Moore, AD/CVD Operations, Office VIII, Enforcement and Compliance, International Trade Administration, U.S. Department of Commerce, 1401 Constitution Avenue NW, Washington, DC 20230; telephone: (202) 482-3640. SUPPLEMENTARY INFORMATION: Background On September 9, 2025, Commerce published in the Federal Register the Preliminary Determination and invited interested parties to comment. [ 1 ] Due to the lapse in appropriations and Federal Government shutdown, on November 14, 2025, Commerce tolled all deadlines in administrative proceedings by 47 days. [ 2 ] Additionally, due to a backlog of documents that were electronically filed via Enforcement and Compliance's Antidumping and Countervailing Duty Centralized Electronic Service System (ACCESS) during the Federal Government shutdown, on November 24, 2025, Commerce tolled all deadlines…