HS Code 3812.39 : Anti-oxidizing preparations and other compound stabilizers for rubber or plastics, Other
MODULE 2: EXTRACTABLE ANSWER (AEO / SPEAKABLE)
EN (Official WCO)
FR (Pending)
ES (Pending)
The 6-digit Harmonized System (HS) code for anti-oxidizing preparations and other compound stabilizers for rubber or plastics, other is 3812.39. Under the 2026 United States (USITC HTS), the representative MFN general duty rate is 6.5% [USITC HTS 2026].
MODULE 3: SIGNATURE A: HS DECODE VISUAL HIERARCHY
Chapter 38
Prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere specified or included; antioxidizing preparations and other compound stabilizers for rubber or plastics
Heading 3812
Prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere specified or included; antioxidizing preparations and other compound stabilizers for rubber or plastics
Subheading .39
.39
Anti-oxidizing preparations and other compound stabilizers for rubber or plastics, Other
MODULE 4: SIGNATURE B: TARIFF MATRIX
Import Duty Rates by Destination
United States (USITC HTS 2026)
3812.39
MODULE 5: US IMPORT DUTY & FEE BREAKDOWN (LANDED COST STACK)
Federal Import VAT / GST
0.00%
US Has NO Federal VAT
Notice: Duty rates and trade remedies change frequently (Section 301, Section 232, anti-dumping orders, de minimis thresholds). Duty calculations are estimates for informational purposes only. Always verify exact rates with U.S. Customs and Border Protection (CBP) or a licensed customs broker prior to import.
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MODULE 6: Mandatory Customs Entry Document Matrix
Rule-Derived Customs Entry Package Checklist
UNIVERSAL DOCUMENT
Commercial Invoice
Itemized description, currency, Incoterms, seller/buyer details, and country of origin.
UNIVERSAL DOCUMENT
Packing List & Bill of Lading
Gross/net weight, container/seal numbers, piece count, and transport B/L or Air Waybill.
AGENCY-CONDITIONAL (PGA)
FDA Prior Notice / USDA Phytosanitary Cert
Rule-derived from verified PGA flag: Mandatory prior notice filing and health certificate.
MODULE 7: Regulatory Compliance & Partner Government Agency (PGA) Flags
ACE PGA Message-Set Flags:
EPA (EP1): EPA Pesticide Notice of Arrival (NOA) Form 3540-1
Official ACE program code: ACE/PGA [FDA 21 CFR 1.276].
MODULE 8: Trade Remedies (Section 301, Section 232, AD/CVD)
China Section 301 Tariff Status
0% Additional Duty (Exempt)
Section 232 Steel/Aluminum Status
Exempt (Non-Metal Commodity)
EU CBAM Carbon Alert
Not in Scope
MODULE 9: Free Trade Agreements (FTA) & Rules of Origin (RoO)
| Agreement Code | Trade Agreement / Program | Preferential Rate | Rules of Origin (RoO) Requirement |
|---|---|---|---|
| P | United States-Mexico-Canada Agreement (USMCA) | Free | Must meet USMCA Regional Value Content (RVC) or tariff shift rules. |
| KR | U.S.-Korea Free Trade Agreement (KORUS) | Free | Direct shipment from South Korea with KORUS Certificate of Origin. |
| AU | U.S.-Australia Free Trade Agreement | Free | Wholly obtained or tariff shift rule under US-Australia FTA. |
| A / D | GSP / African Growth & Opportunity Act (AGOA) | Free | 35% local value-add requirement for beneficiary country origin. |
MODULE 10: Logistics, Freight & Transport Specifications
Standard 20ft Container
~28 CBM / 28,000 kg Payload
Standard 40ft High-Cube
~68 CBM / 28,600 kg Payload
Stowage Factor & Handling
Standard commercial packaging for Anti-oxidizing preparations and other compound stabilizers for rubber or plastics, Other
MODULE 11: Official CBP CROSS Binding Classification Rulings
No ruling cached for HS 3812.39.
Query the live U.S. Customs and Border Protection e-Rulings database:
Search Live CBP CROSS Database for 3812.39 →US National HTS Tariff Lines (3812.39)
| HTS Code | Description | General Rate | Special (FTA) Rate | Column 2 Rate | Unit |
|---|---|---|---|---|---|
| 3812.39 | Anti-oxidizing preparations and other compound stabilizers for rubber or plastics, Other | Free | Free | Rate on request | — |
| 3812.39.20.00 | Anti-oxidizing preparations and other compound stabilizers for rubber or plastics, Other, Containing any aromatic or modified aromatic antioxidant or other stabilizer, Mixtures of N,N'-diaryl-p-phenylenediamines | 6.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 3.7¢/kg + 60% | kg |
| 3812.39.30.00 | Anti-oxidizing preparations and other compound stabilizers for rubber or plastics, Other, Containing any aromatic or modified aromatic antioxidant or other stabilizer, Master batches of poly[nitrilomethanetetraaryl- nitrilo[2,4,6- tris(1-methylethyl)-1,3- phenylene]]-2,6-bis(1-methylethyl)phenyl]-ω- [[[[2,6-bis(1-methylethyl)phenyl]amino]- methylene]amino]carbodiimide or 2,4-diisocyanate-1,3,5-tris(1-methylethyl)- benzene homopolymer with polyethylene, polyethylene terephthalate, or thermoplastic polyurethanes;Master batches of 3-(2H-benzotriazol-2-yl)-5- (tert-butyl)-4-hydroxybenzenepropanoic acid, C7-C9 branched or linear alkyl esters; andMaster batches of α-[3-[3-(2H-benzotriazol-2- yl)-5-(1,1-dimethylethyl)-4-hydroxyphenyl]-1- oxopropyl-ω-[3-[3-(2H-benzotriazol-2-yl)-5- (1,1-dimethylethyl)-4-hydroxyphenyl]-1-oxo- propyl] poly(oxyethylene) | Free | Free | 3.7¢/kg + 60% | kg |
| 3812.39.60.00 | Anti-oxidizing preparations and other compound stabilizers for rubber or plastics, Other, Containing any aromatic or modified aromatic antioxidant or other stabilizer, Other | 6.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 3.7¢/kg + 60% | kg |
| 3812.39.70.00 | Anti-oxidizing preparations and other compound stabilizers for rubber or plastics, Other, Other, Bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate | Free | Free | 25% | kg |
| 3812.39.90.00 | Anti-oxidizing preparations and other compound stabilizers for rubber or plastics, Other, Other, Other | 5% | Free (A+,AU,BH,CL,CO,D, E,IL, JO,KR,MA,OM,P, PA,PE,S,SG) | 25% | kg |
MODULE 12: Candidate Subheadings & Related Codes
| Related HS Code | Heading Category | Action |
|---|---|---|
| 3812.10 | Subheading under Heading 3812 | Compare Subheading 3812.10 → |
| 3812.20 | Subheading under Heading 3812 | Compare Subheading 3812.20 → |
| 3812.31 | Subheading under Heading 3812 | Compare Subheading 3812.31 → |
MODULE 13: Industry Classification & Crosswalk Mesh (NAICS & Schedule B)
U.S. Census NAICS Code
U.S. Census Schedule B (Exports)
Official Primary Sources & Authority References
USITC HTS Chapter 38 Tariff Schedule (2026) ↗
Official U.S. 10-digit tariff lines and general duty rates for Anti-oxidizing preparations and other compound stabilizers for rubber or plastics, Other.
CBP CROSS Ruling Database (3812.39) ↗
Binding customs classification precedents for Heading 3812.
MODULE 14: Frequently Asked Questions (FAQ) & Operational Guide
What is the 6-digit WCO tariff classification and United States (USITC HTS) general duty for Anti-oxidizing preparations and other compound stabilizers for rubber or plastics, Other?
Under WCO Harmonized System 2022 and United States (USITC HTS), Anti-oxidizing preparations and other compound stabilizers for rubber or plastics, Other is classified under HS 3812.39 (Heading 3812, Chapter 38). The representative US MFN general duty rate is 6.5%.
How is HS 3812.39 distinguished within Heading 3812 (Prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere specified or included; antioxidizing preparations and other compound stabilizers for rubber or plastics)?
Heading 3812 covers Prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere specified or included; antioxidizing preparations and other compound stabilizers for rubber or plastics. Subheading 3812.39 specifically isolates Anti-oxidizing preparations and other compound stabilizers for rubber or plastics, Other. Importers must verify whether physical characteristics, processing state, or composition require alternative subheadings under Heading 3812.
What are the primary candidate subheadings related to HS 3812.39?
Related subheadings under Heading 3812 include 3812.10, 3812.20, 3812.31. Classification depends on processing stage, decaffeination, purity, or material form.
What mandatory commercial entry documents are required to import Anti-oxidizing preparations and other compound stabilizers for rubber or plastics, Other?
Commercial Invoice (detailing Incoterms, currency, and origin), Packing List, Bill of Lading (or Air Waybill), CBP Form 7501 Entry Summary, and a continuous customs bond are required for formal entries.
Can goods under HS 3812.39 enter duty-free under USMCA or Free Trade Agreements?
Yes. Eligible goods originating in Mexico, Canada, South Korea, or Australia enter duty-free under preference SPI codes (P, KR, AU) provided they satisfy Regional Value Content (RVC) or tariff-shift rules with a valid Certificate of Origin.
What is the US formal entry threshold for shipments of Anti-oxidizing preparations and other compound stabilizers for rubber or plastics, Other?
Commercial shipments of Anti-oxidizing preparations and other compound stabilizers for rubber or plastics, Other with a customs value exceeding $2,500 USD require formal customs entry (CBP Form 7501) and a continuous entry bond. Informal entry applies to lower values.
How can an importer obtain a binding CBP classification ruling for HS 3812.39?
Importers may submit an e-Ruling request under 19 CFR Part 177 to CBP National Commodity Specialist Division (NCSD) to obtain a legally binding tariff classification ruling prior to importation.
What U.S. Census NAICS industry code corresponds to HS 3812.39?
HS 3812.39 maps to NAICS code 325998 (Other Chemical Product and Preparation Manufacturing) under official U.S. Census Bureau trade concordance tables.
Does the United States assess federal VAT or GST on imports of HS 3812.39?
No. The United States does NOT charge a federal Value-Added Tax (VAT) or Goods and Services Tax (GST) on imports. Importers pay customs duty + MPF + HMF (if ocean freight).
How are Merchandise Processing Fee (MPF) and Harbor Maintenance Fee (HMF) calculated?
MPF is assessed at 0.3464% of entered value (min $32.71, max $634.62 per entry). HMF is assessed at 0.125% on ocean freight shipments entering US ports.
What is the Section 321 de minimis duty-free threshold for HS 3812.39?
Under Section 321 (19 U.S.C. 1321), eligible shipments valued at $800 USD or less imported by one person on one day enter duty-free and tax-free.
What U.S. Customs bond requirements apply to commercial entries under HS 3812.39?
Formal entries with customs value exceeding $2,500 USD require a continuous customs entry bond (CBP Form 301) to guarantee payment of duties, taxes, and fees.
What Importer Security Filing (ISF 10+2) rules apply to ocean imports of HS 3812.39?
Ocean container shipments bound for US ports require electronic ISF 10+2 submission via ACE at least 24 hours before loading at foreign ports.
How do USMCA preference rules apply to commercial imports under HS 3812.39?
Qualifying originating goods from Canada or Mexico meeting USMCA tariff-shift or Regional Value Content (RVC) rules enter duty-free under SPI code 'P'.