Thermosetting Aromatic Resin
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3907300000 | 41.1% | CN | US | Official Doc |
| 3907500000 | 41.5% | CN | US | Official Doc |
| 3909310000 | 41.5% | CN | US | Official Doc |
| 3909400000 | 41.5% | CN | US | Official Doc |
| 3806900000 | 39.2% | CN | US | Official Doc |
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π§ͺ Thermosetting Aromatic Resin (ηεΊζ§θ³ι¦ζ θ)
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Customs Strategy
π 1. Product Definition & Chemical Classification: What Are We Really Importing?
Thermosetting Aromatic Resins are high-performance polymer materials characterized by rigid aromatic ring structures (benzene rings) that cross-link upon curing, creating an infusible and insoluble solid. In international trade, these are primarily categorized under Chapter 39 (Plastics and Articles Thereof) or Chapter 38 (Miscellaneous Chemical Products), depending on their specific chemical composition and derivation.
Key Classification Criteria: * Epoxy Resins: Based on glycidyl ethers of bisphenol A or phenols. * Phenolic Resins: Based on phenol-formaldehyde condensation. * Amino/Polyurethane Resins: Containing aromatic rings in the backbone. * Petroleum/Pine Derivatives: Derived from petroleum distillates or rosin.
β οΈ Critical Distinction:
- If the resin is a synthetic polymer (Epoxy, Phenolic, Amino, Polyurethane) β Classified under Chapter 39.
- If the resin is a modified petroleum/pine derivative (e.g., Hydrocarbon resins) β Classified under Chapter 38.
π¦ 2. HS Code Classification Matrix (2026 Latest Harmonized System)
| HS Code | Product Description | Chemical Category | Key Characteristic |
|---|---|---|---|
3907.30.00.00 |
Epoxy Resins | Polyester/Resin Class | Thermosetting Aromatic; Bisphenol-based structure. |
3907.50.00.00 |
Alkyd Resins | Polyester/Resin Class | Thermosetting Aromatic; Derived from polyols/acids. |
3909.31.00.00 |
Amino Resins (Formaldehyde derivatives) | Amino/Polyurethane Class | Aromatic Ring Containing; Nitrogen-based cross-linkers. |
3909.40.00.00 |
Phenolic Resins | Phenolic Class | Aromatic Ring Containing; Phenol-formaldehyde condensation. |
3806.90.00.00 |
Rosin & Derivatives (Including Petroleum Resins) | Miscellaneous Chemicals | Aromatic Hydrocarbon; Primary form chemical; Pine/Petroleum derived. |
π Important Note:
- Chapter 39 Codes (3907, 3909) apply to synthetic organic polymers. These are subject to higher scrutiny due to their chemical complexity.
- Chapter 38 Code (3806) applies to modified chemical products, specifically those derived from rosin or petroleum hydrocarbons that do not fit the strict definition of "plastics" in Chapter 39.
π° 3. 2026 Latest Tariff Rate Breakdown (Including Additional Duties)
β Applicable Country: United States (US)
β Origin: China (CN)
β Effective Date: Current Trade Policy (Section 301 & IEEPA)
π― 1. 3907.30.00.00 β Epoxy Resins (Thermosetting Aromatic)
| Item | Detail |
|---|---|
| Base Duty Rate | 6.1% (ad valorem) |
| Section 301 Additional Duty | +25.0% |
| Section 122 Duty (IEEPA) | +10.0% |
| Total Effective Rate | 41.1% |
| Tax Calculation | CIF Value Γ 41.1% |
| De Minimis Eligibility | β Not Eligible (High duty rate prevents $800 exemption) |
| Legal Basis Path | HTSUS:3907.30.00.00 β USITC:Footnote 301 β IEEPA:122 |
π Explanation:
- 6.1%: Standard MFN (Most Favored Nation) duty for epoxy resins.
- 25.0%: Section 301 tariffs on Chinese-made chemical products (List 3/4).
- 10.0%: Section 122 additional duty on specific strategic/chemical inputs.
- Total 41.1% is a very high burden, significantly impacting profit margins.
π― 2. 3907.50.00.00 β Alkyd Resins (Thermosetting Aromatic)
| Item | Detail |
|---|---|
| Base Duty Rate | 6.5% (ad valorem) |
| Section 301 Additional Duty | +25.0% |
| Section 122 Duty (IEEPA) | +10.0% |
| Total Effective Rate | 41.5% |
| Tax Calculation | CIF Value Γ 41.5% |
| De Minimis Eligibility | β Not Eligible |
| Legal Basis Path | HTSUS:3907.50.00.00 β USITC:Footnote 301 β IEEPA:122 |
π Note:
- Slightly higher base rate (6.5% vs 6.1%) makes this category marginally more expensive than Epoxy.
- Applies to resins derived from aromatic polyols and acids.
π― 3. 3909.31.00.00 β Amino Resins (Aromatic Ring Containing)
| Item | Detail |
|---|---|
| Base Duty Rate | 6.5% (ad valorem) |
| Section 301 Additional Duty | +25.0% |
| Section 122 Duty (IEEPA) | +10.0% |
| Total Effective Rate | 41.5% |
| Tax Calculation | CIF Value Γ 41.5% |
| De Minimis Eligibility | β Not Eligible |
| Legal Basis Path | HTSUS:3909.31.00.00 β USITC:Footnote 301 β IEEPA:122 |
π Explanation:
- Includes urea-formaldehyde, melamine-formaldehyde, and other amino resins with aromatic components.
- Same high tariff structure as Alkyd resins.
π― 4. 3909.40.00.00 β Phenolic Resins (Aromatic Ring Containing)
| Item | Detail |
|---|---|
| Base Duty Rate | 6.5% (ad valorem) |
| Section 301 Additional Duty | +25.0% |
| Section 122 Duty (IEEPA) | +10.0% |
| Total Effective Rate | 41.5% |
| Tax Calculation | CIF Value Γ 41.5% |
| De Minimis Eligibility | β Not Eligible |
| Legal Basis Path | HTSUS:3909.40.00.00 β USITC:Footnote 301 β IEEPA:122 |
π Explanation:
- Phenolic resins are widely used in adhesives, molding compounds, and laminates.
- The 6.5% base rate reflects their status as a specialized polymer.
π― 5. 3806.90.00.00 β Aromatic Petroleum/Rosin Resins
| Item | Detail |
|---|---|
| Base Duty Rate | 4.2% (ad valorem) |
| Section 301 Additional Duty | +25.0% |
| Section 122 Duty (IEEPA) | +10.0% |
| Total Effective Rate | 39.2% |
| Tax Calculation | CIF Value Γ 39.2% |
| De Minimis Eligibility | β Not Eligible |
| Legal Basis Path | HTSUS:3806.90.00.00 β USITC:Footnote 301 β IEEPA:122 |
π Explanation:
- This is the lowest effective rate (39.2%) among the options, but it applies only to resins classified as "Rosin and Derivatives" or "Petroleum Hydrocarbon Resins."
- If your product is a true synthetic epoxy or phenolic resin, do not use this code; it will be flagged as misclassification.
π οΈ 4. Customs Clearance Practical Advice (Risk Mitigation Guide)
β 1. Documentation Checklist (Non-Negotiable)
| Document | Required? | Explanation |
|---|---|---|
| β Chemical Structure Diagram | βοΈ | Must show aromatic rings and functional groups to justify Chapter 39 vs 38. |
| β Material Safety Data Sheet (MSDS) | βοΈ | Required for hazardous chemicals; confirms physical state (liquid/powder). |
| β Formula/Composition Breakdown | βοΈ | Customs may demand % composition to verify "Primary Form" status. |
| β Commercial Invoice | βοΈ | Must clearly state "Thermosetting Aromatic Resin" and correct HS Code. |
| β Certificate of Origin | βοΈ | To confirm China origin for Section 301/122 application. |
| β Third-Party Test Report | βοΈ | ISO/ASTM standards for resin curing properties. |
β 2. Classification Strategy & Warnings
π₯ "Chemical Nature Determines Code, Not Just Name!"
| Scenario | Correct Classification | Wrong Classification | Consequence |
|---|---|---|---|
| Epoxy Resin (Bisphenol A based) | 3907.30.00.00 (41.1%) |
3806.90.00.00 (39.2%) |
Misclassification Penalty; Risk of retroactive duty difference + fines. |
| Phenolic Resin | 3909.40.00.00 (41.5%) |
3806.90.00.00 (39.2%) |
High Risk; Phenolics are distinct from petroleum/resin derivatives. |
| Petroleum Hydrocarbon Resin | 3806.90.00.00 (39.2%) |
3907.xx |
Low Risk if properly documented as petroleum derivative. |
β οΈ Critical Warning:
- Do Not Mix Codes: Epoxy, Phenolic, and Amino resins are synthetic polymers (Chapter 39).
- Petroleum Resins are chemical derivatives (Chapter 38).
- Using3806.90.00.00for Epoxy resin to save ~2% in duty is illegal and will trigger an audit.
β 3. Special Circumstances & Mitigation
| Situation | Handling Advice |
|---|---|
| OEM Custom Resins | Provide formula sheets; ensure "Aromatic" content is documented. |
| Mixtures/Blends | Classify based on essential character; if >50% Epoxy, use 3907.30. |
| Raw Material vs. Final Product | If resin is already cured/cross-linked, it may be classified as a "Part" or "Article," not raw resin. |
| Origin Diversification | Resins from Vietnam, Mexico, or Thailand may avoid Section 301/122 duties. |
π 5. Global Market Comparison (2026)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 3907.30.00.00 |
41.1% | REACH (if exported to EU), TSCA (US) | Highest cost; Section 301 + 122 apply. |
| π¨π³ China | 3907.30.00.00 |
0% (Import) | CCC (if applicable) | No additional duties for domestic use. |
| πͺπΊ EU | 3907.30.00 |
0% (MFN) | REACH, CLP | No Section 301; but REACH compliance is strict. |
| π¦πΊ Australia | 3907.30.00 |
5% | AICIS | No additional duties; moderate base rate. |
| π―π΅ Japan | 3907.30.00 |
0-5% | JIS | Free Trade Agreement (EPA) may apply. |
π Conclusion:
- The US is the most expensive market for Thermosetting Aromatic Resins from China due to the 41.1%β41.5% effective tariff.
- EU and Japan are more favorable for pricing, but REACH (EU) and JIS (Japan) regulatory compliance is critical.
π 6. Common Errors & Pitfalls (Lessons Learned)
β Error 1: Classifying Epoxy Resin as 3806.90.00.00 to save 2% duty.
π Consequence: Customs audit, penalty, and possible seizure. The chemical structure is fundamentally different.
β Error 2: Ignoring Section 122 (10%) duty.
π Consequence: Underpayment of taxes. Many importers forget the 122 duty on top of Section 301.
β Error 3: Failing to provide Chemical Structure for Chapter 39 classification.
π Consequence: Customs may reclassify to a general "Other Plastic" code with higher duty or hold the shipment for inspection.
β Error 4: Assuming "Aromatic Resin" is a single category.
π Consequence: Misclassification between Epoxy (3907), Phenolic (3909), and Amino (3909) can lead to incorrect duty applications.
β Best Practice:
"Thermosetting Epoxy Resin, Bisphenol A-Based, Liquid, Primary Form, HS 3907.30.00.00, Origin China"
π― 7. Conclusion: Professional Classification Saves Money!
π― Remember the Motto:
πΉ "Chapter 39 for Synethetics, Chapter 38 for Derivatives."
πΉ "41.1% is the US Reality for Chinese Resins; Plan Your Supply Chain!"
πΉ "Misclassification Costs More Than Duty!"
π Pro Tip:
If your resin can be sourced from Vietnam, Mexico, or Thailand, you may qualify for lower or zero Section 301 duties.
Consider Advance Ruling with US CBP for complex mixtures to avoid post-import audits.
π£ Immediate Action:
π Consult a Customs Broker + Provide Chemical Structure + Verify HTSUS Code
π Optimize Your Cost, Ensure Compliance, and Ship with Confidence!
β¨ Professional Customs, From Accurate Classification!
πΌ Every Cent of Duty is Accounted For!
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About HS Code Classification
The Harmonized System (HS) is an internationally standardized nomenclature developed by the World Customs Organization (WCO) to classify traded products. Over 200 countries use the HS system as the basis for customs tariffs, trade statistics, and import/export regulations.
Each HS code follows a hierarchical structure:
- Chapter (2 digits) β Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) β More specific grouping within the chapter
- Subheading (6 digits) β Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) β Country-specific extensions for further classification, such as US HTSUS 10-digit codes
Correct HS code classification is essential for smooth customs clearance, accurate duty payment, and compliance with trade regulations. Misclassification can lead to customs delays, overpayment of duties, or penalties.
When importing from CN to US, the applicable tariff rates may include:
- Most-Favored-Nation (MFN) rate β The standard duty rate applied to WTO members
- General rate β Applied to countries without trade agreements
- Trade remedy duties β Additional tariffs such as Section 301 (anti-dumping), Section 232 (national security), or countervailing duties
The information provided on this page is for reference purposes only. For official classification, please consult with your local customs authority or a licensed customs broker.