Monomers and Oligomers: New AD/CVD Investigations Deadlines & Scope
The Commerce Department issued notices in the Federal Register on its recently initiated antidumping duty investigations on monomers and oligomers from Korea and Taiwan, as well as its countervailing duty investigation on monomers and oligomers from Taiwan. The AD/CVD investigations cover entries for calendar year 2024.
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The International Trade Commission will conduct a concurrent investigation to determine whether imports of dumped and illegally subsidized monomers and oligomers are injuring U.S. industry. If the ITC finds no injury in its preliminary injury determination, due May 12, the investigations will immediately end. If Commerce finds dumping or illegal subsidization in the preliminary determinations of these investigations, due in June for CVD and September for AD, it will set AD and/or CVD cash deposit requirements for imports of merchandise subject to the investigation. If both Commerce and the ITC reach affirmative final determinations, Commerce will issue an AD and/or CVD order making duties permanent and beginning a process of annual administrative reviews to set final assessments of AD/CVD on importers and potentially change AD/CVD cash deposit rates.
AD/CVD Respondent Selection
For its AD investigations on Korea and Taiwan, and its CVD investigation on Taiwan, Commerce said it will pick respondents to its AD/CVD investigations based on CBP import data. Comments on respondent selection are due three business days after Commerce's initiation notice is published, putting the deadline at April 25 at the earliest.
Scope of the AD/CVD Investigations
"The products subject to this investigation are certain multifunctional acrylate and methacrylate monomers, and acrylated bisphenol-A epoxy based oligomers (collectively, certain monomers and oligomers or CMOs) that are derived from chemical reactions involving the use of acrylic or methacrylic acid. Products within the scope are listed below and have the following Chemical Abstracts Service (CAS) numbers:
CAS No. | Description | Molecular formula |
---|---|---|
109-16-0 | Triethylene glycol dimethacrylate (TEGDMA) | C14 H22 O6 . |
13048-33-4 | 1,6-hexanediol diacrylate (HDDA) | C12 H18 O4 . |
42978-66-5 | Tripropylene glycol diacrylate (TPGDA) | C15 H 24 O6 . |
3290-92-4 | Trimethylolpropane trimethacrylate (TMPTMA) | C18 H 26 O6 . |
15625-89-5 | Trimethylolpropane triacrylate (TMPTA) | C15 H 20 O6 . |
28961-43-5 | Ethoxylated trimethylol-propane triacrylate (EOTMPTA) | (C2 H4 O) n (C2 H4 O) n (C2 H4 O) n C15 H20 O6 . |
57472-68-1 | Dipropylene glycol diacrylate (DPGDA) | C12 H18 O5 . |
55818-57-0 | Bisphenol-A-epichlorohydrin copolymer acrylate (EPOXY ACRYLATE) | (C15 H16 O2 · C3 H5 ClO) x ·xC3 H4 O2 . |
"The monomers are generally known as multifunctional acrylates (MFAs) or multifunctional methacrylates (MFMAs) depending on whether the functional groups are acrylate or methacrylate. The monomers generally contain stabilizers/inhibitors, which include but are not limited to Hydroquinone, Methyl Hydroquinone, and Butylated Hydroxy Toluene. The monomers are either difunctional or trifunctional (having 2 or 3 functional groups/molecule), have viscosities of 9 to 15 centipoise (cPs) at 25 degrees Celsius (if difunctional) or 44 to 110 cPs at 25 degrees Celsius (if trifunctional), have (meth) acrylate equivalent weights (molecular weight per number of functional groups) between 99 and 158 and molecular weights between 226 and 472 grams per mol.
"The acrylated bisphenol-A epoxy based oligomer is commonly referred to as epoxy acrylate or acrylated epoxy. In contrast to epoxy resin, the main characteristic of the epoxy acrylate oligomer is that it contains acrylate functional groups which make them curable by free-radical polymerization. The epoxy acrylate has a molecular weight between 508 to 536 grams per mol and a viscosity of 2400 to 3600 cPs at 65 degrees Celsius. The epoxy acrylate generally contains stabilizers/inhibitors, which include but are not limited to Hydroquinone, Methyl Hydroquinone, and Butylated Hydroxy Toluene.
"Certain monomers and oligomers are subject to the scope even if an in-scope monomer or oligomer is blended or mixed with one or more other in-scope monomers or oligomers.
"Certain monomers and oligomers in any blend or mixture are also subject to the scope, so long as the blend or mixture contains no less than 20 percent by weight of in-scope CMOs.
"The scope includes merchandise matching the above description that has been processed in a third country, including by commingling, diluting, introducing, or removing ingredients, or performing any other processing that would not otherwise remove the merchandise from the scope of the investigation if performed in the subject country.
"The scope also includes CMOs that are commingled, mixed or blended with in-scope product from sources not subject to this investigation.
"Only the subject component(s) of such blends, mixtures or commingled products described above is covered by the scope of this investigation. Subject merchandise contained in a blended, mixed or commingled product described above will not have undergone a chemical reaction as a result of being blended, mixed or commingled.
"Notwithstanding the above, specifically excluded from the scope are downstream products, including but not limited to, inks, coatings and overprint varnishes. For purposes of this exclusion, the downstream product requires only the application of energy to be cured, e.g., inks or varnish applied to packaging, coatings applied to wood flooring, etc. The energy source required to cure the downstream product to its substrate can be thermal, ultraviolet radiation, visible light, electron beam radiation, or infrared radiation.
"This merchandise is currently classifiable under Harmonized Tariff Schedule of the United States (HTSUS) subheadings 2916.12.5050, 2916.14.2050, 3824.99.2900, 3907.29.0000 and 3907.30.0000. Subject merchandise may also be entered under subheadings 2916.12.1000 and 3824.99.9397. The HTSUS subheadings and CAS registry numbers are provided for convenience and customs purposes only; the written description of the scope is dispositive."
Comments on the scope of the orders are due by 5 p.m. EDT on May 6.
Investigations Timetable
Event | AD | CVD |
---|---|---|
Petitions Filed | 03/27/25 | 03/27/25 |
Commerce Initiation Date | 04/16/25 | 04/16/25 |
ITC Preliminary Determinations | 05/12/25 | 05/12/25 |
Commerce Preliminary Determinations | 09/03/25 | 06/20/25 |
Commerce Final Determinations | 11/17/25 | 09/03/25 |
ITC Final Determination | 01/02/26 | 10/20/25 |
Issuance of Orders | 01/09/26 | 10/27/25 |
These deadlines may be, and usually are, extended. The Commerce Department fact sheet on the initiation of these investigations is (here). See 2504010047 for a summary of the petition requesting these investigations.