The amine compounds AD/CVD investigation creates immediate classification, scope, and supply chain questions for U.S. importers of polyurethane catalysts. Although no antidumping or countervailing duty order currently exists, companies should identify potentially covered products before preliminary findings create cash deposit exposure.
Products Potentially Covered by the Investigations
The investigations apply to certain amine catalysts from China that facilitate reactions between isocyanates and polyols, water, or both. These compounds are commonly associated with polyurethane foam systems, coatings, adhesives, sealants, and other industrial formulations.
CAS Numbers and Product Descriptions
The written scope identifies six Chemical Abstracts Service numbers:
- 6711-48-4
- 2212-32-0
- 1704-62-7
- 3030-47-5
- 3033-62-3
- 6425-39-4
Examples include bis(dimethylaminoethyl) ether and pentamethyldiethylenetriamine. Importers should not rely solely on commercial product names because suppliers may market the same chemical under different trade names, abbreviations, or proprietary formulation names.
Blends and mixtures are generally covered when they contain at least 1 percent by weight of an in-scope amine compound. In such cases, only the in-scope amine portion is covered. Polyurethane foam systems may also fall within the scope when the polyol-based B side contains at least 1 percent by weight of one or more covered amines.
The listed classifications include HTSUS 2922.19.9690, 2921.29.0055, and 2934.99.9001. Subject products may also enter under 2909.11.0000, 2921.21.0000, or 3815.90.5000. These tariff provisions are informational rather than controlling. The written product description is dispositive, which means an unlisted or differently declared HTSUS classification does not necessarily place merchandise outside the investigation.
Covered amines already subject to the existing orders on certain alkyl phosphate esters from China are excluded. Importers should document the basis for any claimed exclusion rather than assuming that overlapping chemistry automatically removes a product from scope.
Investigation Schedule and Potential Duty Exposure
Commerce initiated antidumping investigation A-570-245 and countervailing duty investigation C-570-246 with an applicable date of October 19, 2026. Evonik Corporation and Huntsman International LLC filed the underlying petitions on September 29, 2026.
Key Deadlines and Preliminary Determinations
Quantity and value questionnaire responses from identified Chinese producers and exporters are due by 5:00 p.m. Eastern Time on November 2, 2026. Initial comments addressing the proposed scope and product characteristics are due by 5:00 p.m. Eastern Time on November 9, 2026, followed by rebuttal comments on November 19, 2026.
Unless postponed, Commerce's preliminary countervailing duty determination is expected within 65 days of initiation, placing it around December 23, 2026. The preliminary antidumping determination is generally due within 140 days, placing it around March 8, 2027. These dates may change if Commerce extends the statutory schedule.
The International Trade Commission separately evaluates whether the domestic industry is materially injured or threatened with material injury. Its preliminary determination is generally required within 45 days of the petition. A negative preliminary injury determination would terminate the investigations. An affirmative determination allows the Commerce proceedings to continue.
The antidumping petition alleged margins ranging from 249.86 to 352.32 percent using Brazil as a surrogate, 261.34 to 351.16 percent using Malaysia, and 244.94 to 345.96 percent using Turkiye. These figures are allegations used for initiation, not final duty rates. China is treated as a nonmarket economy for the antidumping analysis. The antidumping period of investigation is January 1 through June 30, 2026, while the countervailing duty period covers calendar year 2025.
Commerce also initiated examination of 25 alleged subsidy programs and identified 36 Chinese producers and exporters. Any eventual cash deposit exposure could include separate antidumping and countervailing duty rates.
Compliance Priorities for Importers and Brokers
Importers should begin product mapping before preliminary determinations are issued. Waiting until cash deposits become effective can leave insufficient time to validate supplier declarations, evaluate alternate sourcing, or correct product master data.
Build a Chemistry-Based Scope Review
A defensible review should begin with chemical composition rather than tariff classification. Importers should collect safety data sheets, technical data sheets, certificates of analysis, ingredient declarations, formulation records, and supplier certifications. Each product should be screened against the six listed CAS numbers and the 1 percent by-weight threshold.
Particular attention should be given to proprietary blends. Safety data sheets may omit low-concentration ingredients or identify them only as confidential components. A document that does not list a covered CAS number is not necessarily proof that the compound is absent. Importers may need direct, product-specific confirmation from manufacturers.
Polyurethane systems require analysis of the B-side formulation even when the imported article is described commercially as a complete foam system. Compliance teams should determine whether the polyol-based side contains a covered amine and, if so, its weight percentage.
Confirm Origin Through All Processing Stages
Third-country processing does not necessarily change the Chinese origin of an in-scope amine compound. Blending, diluting, repackaging, or incorporating the Chinese chemical into a formulation in another country may leave the amine subject to the China proceeding.
Importers should therefore trace the origin of the chemical component, not merely the country from which the finished blend was shipped. Supplier questionnaires should request the manufacturer, manufacturing location, CAS number, concentration, intermediate processing countries, and source of each potentially covered amine.
Customs brokers can support the review by identifying entries under the listed HTSUS provisions and searching descriptions for catalyst, polyurethane, foam, polyol, adhesive, coating, sealant, and related terms. Because scope is controlled by the written description, the review should also include potentially relevant entries under other classifications.
Cash Deposits, Entry Management, and Drawback
No antidumping or countervailing duty order currently applies under these investigations. Initiation alone does not impose provisional cash deposits. Deposits would generally begin only after an affirmative preliminary Commerce determination and the associated instructions to U.S. Customs and Border Protection.
Prepare Before Suspension of Liquidation
Importers should monitor entry dates, preliminary decision dates, supplier-specific rates, and instructions concerning suspension of liquidation. Merchandise entered on or after the effective date of an affirmative preliminary determination may become subject to estimated AD or CVD cash deposits. Final liability can differ from the deposit amount and may remain unresolved until liquidation.
The potentially high alleged margins make landed-cost scenario planning especially important. Importers may model separate cases for antidumping duties, countervailing duties, ordinary customs duties, and other applicable tariffs. Purchase contracts should also be reviewed for duty allocation, price adjustment, origin representations, record access, and indemnification provisions.
Separate AD/CVD From Drawback-Eligible Duties
If final AD or CVD orders are issued, antidumping and countervailing duties would not be eligible for drawback under 19 U.S.C. 1677h. Exporting or destroying the imported merchandise would not create drawback eligibility for those AD/CVD amounts.
Ordinary customs duties paid on the same merchandise may still follow the normal drawback framework when all applicable requirements are satisfied. This distinction should be reflected in duty accounting, entry data, drawback calculations, and financial forecasts. Importers should avoid combining ordinary duty, antidumping deposits, and countervailing deposits into a single undifferentiated duty-cost field.
Customs brokers administering drawback programs should preserve the data needed to distinguish recoverable ordinary duties from nonrecoverable AD/CVD amounts. Clear separation helps prevent overstated claims and gives importer clients a more accurate view of net duty exposure.
- On September 29, 2026, Evonik Corporation and Huntsman International LLC filed AD and CVD petitions on certain amine compounds (polyurethane catalysts with specified CAS numbers such as 6711-48-4 and 3033-62-3) from China, alleging dumping margins of 261.34% to 476.13% and subsidies above de minimis. The ITC instituted preliminary investigations (Nos. 701-TA-808 and 731-TA-1809) with a Federal Register notice on October 5, 2026.
- Commerce initiated the AD investigation (A-570-245) and CVD investigation (C-570-246) on October 19-20, 2026 (applicable date October 19), with alleged dumping margins of 244.94% to 352.32% and CVD rates above de minimis. The AD period of investigation is January 1 to June 30, 2026; the CVD period is calendar year 2025. Federal Register notices (91 FR 67294 and 67290) were published October 26, 2026. Scope covers blends and mixtures containing at least 1% by weight of in-scope amines (only the amine portion in scope), as well as polyurethane systems, with China origin retained even after third-country processing.
- U.S. imports of the subject merchandise from China totaled about $235 million in 2025 (down from $375 million in 2024), per Commerce data. Chinese industry reports highlight potential high tariffs (up to 352.32%) pressuring polyurethane catalyst exports, which hold roughly 30% U.S. market share. Commerce is investigating 25 alleged subsidy programs.
- Key upcoming deadlines include Q&V questionnaire responses from Chinese producers/exporters due November 2, 2026; scope comments due November 9, 2026; and the ITC preliminary injury determination on or around November 13, 2026. If affirmative, Commerce preliminary CVD is due around December 23-24, 2026, and AD around March 8-9, 2027. Law firm analyses (e.g., from Faegre Drinker, Clark Hill, and GDLSK) emphasize importer risks of cash deposits and the need to review supply chains for covered products.
- Practitioner discussions on X in early October 2026 (around the petition filing) focused on Indian chemical stocks such as Balaji Amines, Alkyl Amines, and Indo Amines, which surged 13-20% on October 6 amid speculation of reduced Chinese competition. Analysts (e.g., 360 ONE) and posts clarified the probe targets specialty PU catalysts, not commodity amines, with no meaningful direct benefit or impact expected for those Indian producers and the market reaction viewed as overdone. Limited X discussion appeared after the October 20 initiation.
Frequently Asked Questions
Are All Amine Compounds From China Covered?
No. The scope is directed at specified amine catalysts identified through their chemical descriptions and six listed CAS numbers. Product names and tariff classifications can help identify candidates, but composition remains central. Importers should compare technical records with the complete written scope and document why each product is included, excluded, or still under review.
How Does the 1 Percent Threshold Apply to Blends?
A blend or mixture is generally within scope when it contains at least 1 percent by weight of one or more covered amine compounds. Only the in-scope amine portion is covered. Determining the appropriate entry treatment and deposit calculation for a particular formulation may require coordination among the importer, customs broker, supplier, and trade counsel.
Are Cash Deposits Required Immediately?
No. Initiation of an investigation does not itself create an AD or CVD cash deposit requirement. Provisional deposits would generally begin only if Commerce issues an affirmative preliminary determination and directs U.S. Customs and Border Protection to suspend liquidation and collect deposits. Importers should still prepare early because preliminary CVD and AD decisions may arrive on different schedules.
Can Importers Recover Future AD/CVD Payments Through Drawback?
No. If an order is eventually issued, antidumping and countervailing duties are not eligible for drawback. Ordinary customs duties paid on the same merchandise may remain eligible under the normal drawback rules, provided the claimant satisfies the applicable requirements. Accounting systems should keep these duty categories separate.
Does a Different HTSUS Classification Remove a Product From Scope?
Not necessarily. The written scope controls, while HTSUS numbers are generally provided for customs convenience. A product entered under an unlisted classification may still be covered if its chemistry and use match the scope. Conversely, classification under a listed provision does not automatically establish that the product contains a covered amine.
Does Third-Country Blending Change the Amine's Origin?
Generally, no. The scope provides that third-country processing does not change the Chinese origin of the covered amine compound. A Chinese amine incorporated into a blend or formulation elsewhere may therefore remain subject. Importers should trace the source of the chemical ingredient through every processing stage rather than relying only on the finished product's country of shipment.
How Stable Software Can Help
Preserve Drawback Value While Separating AD/CVD Costs
The amine compounds investigations illustrate why importers and brokers need a clear distinction between ordinary customs duties and non-drawback-eligible AD/CVD amounts. Stable Software's DrawbackAI is flat-license duty drawback software that U.S. customs brokers can white-label for importer clients and use to file under their own filer code.
Stable Software charges a flat software license and never takes a percentage of the refund. For brokers managing importer duty recovery alongside emerging trade-remedy exposure, this model helps keep the drawback relationship under the broker's control while avoiding refund-based software fees. Brokers evaluating ordinary-duty recovery opportunities can explore DrawbackAI as part of a broader, carefully documented duty management strategy.
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