High Absorption Epoxy Resin
CN โ US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3907300000 | 41.1% | CN | US | Official Doc |
| 3907290000 | 41.5% | CN | US | Official Doc |
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๐งช High Absorption Epoxy Resin
๐ HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Compliance Strategy
๐ I. Product Definition & Classification: What Exactly is "High Absorption Epoxy Resin"?
High Absorption Epoxy Resin falls under the broad category of Epoxide Resins in the Harmonized System (HS). In international trade, the classification hinges on the physical form and chemical structure. It is primarily used in adhesives, coatings, composite materials, and electronics encapsulation.
Key Distinction: * Epoxide Resins (3907.30): These are the direct condensation products of bisphenol A (or similar) with epichlorohydrin. They are specifically classified under this subheading regardless of whether they are "high absorption" variants, provided they fit the chemical definition of epoxy. * Other Polyethers (3907.29): This category is for polyethers other than epoxide resins. If the product is chemically an epoxy, it cannot be classified here, even if it has ether linkages.
โ ๏ธ Critical Classification Point:
- If the resin is chemically an epoxy resin (polyepoxy), it MUST go to 3907.30.00.00.
- The term "High Absorption" refers to its physical property (likely water or solvent absorption capacity) but does not change its chemical identity as an epoxide resin.
- Therefore, it is excluded from 3907.29.00.00 ("Other polyethers").
๐ฆ II. HS Code Classification Details (2026 Latest Tariff Authority Reference)
| HS Code | Product Description | Applicable Scenario | Chemical Nature |
|---|---|---|---|
3907.30.00.00 |
Epoxide resins | Standard epoxy resins, high-absorption epoxy, bisphenol A epoxy, novolac epoxy | โ Epoxide Resin |
3907.29.00.00 |
Other polyethers: Other | Polyethers that are not epoxide resins (e.g., PEG, PPG without epoxide groups) | โ Not Epoxide |
๐ Key Reminder:
- Do NOT misclassify high absorption epoxy as "Other polyethers" (3907.29). This is a common error that leads to underpayment of duties.
- The "High Absorption" attribute is a product specification, not a classification criterion. The chemical family (Epoxide) dictates the HS code.
๐ฐ III. 2026 Latest Tariff Rate Breakdown (Including Additional Taxes, Policy Add-ons)
โ Applicable Country: United States (US)
โ Country of Origin: China (CN)
โ Effective Date: November 10, 2025 onwards (for subsequent imports)
๐ฏ 1. 3907.30.00.00 โโ Epoxide Resins (Including High Absorption Epoxy)
| Item | Content |
|---|---|
| Base Tariff | 6.1% (ad valorem) |
| Section 301 Additional Tariff | +25.0% (China-specific) |
| Total Tariff | 31.1% |
| Tax Calculation | CIF Value ร 31.1% |
| De Minimis Exemption Available? | โ No (denied for China-origin goods under Section 301) |
| Legal Basis Path | USITC:3907.30.00.00 โ USITC:Footnote 9903.88.01 (Section 301 List 4) |
๐ Explanation:
- Base Rate (6.1%): The standard Most Favored Nation (MFN) rate for epoxide resins under HS 3907.30.
- Additional Tariff (25%): Imposed under Section 301 of the Trade Act of 1974 against Chinese imports.
- Total (31.1%): A significant cost burden. Unlike some electronics, epoxide resins are not exempt from these additional duties.
- No De Minimis: Shipments valued under $800 (Section 321) cannot bypass this tariff if the goods are classified under this HTSUS and originate in China.
๐ซ Why NOT 3907.29.00.00?
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Additional Tariff | 0.0% |
| Total Tariff | 0.0% |
| Applicability | โ Inapplicable |
๐ Note:
- While3907.29.00.00has a 0% tariff, it is chemically incorrect for epoxy resins.
- Misclassifying an epoxy resin as "Other Polyethers" to save on taxes is customs fraud and can result in severe penalties, back-taxes, and shipment seizure.
- Only use3907.29.00.00if the product is definitively not an epoxide resin (e.g., pure polypropylene glycol without epoxy end-groups).
๐ ๏ธ IV. Customs Clearance Practical Advice (Real-World Pitfall Avoidance Guide)
โ 1. Required Documentation Checklist (None are Optional)
| Document | Must Provide | Explanation |
|---|---|---|
| โ Chemical Composition Report | โ๏ธ | Must confirm the presence of epoxide groups (e.g., epoxy equivalent weight, bisphenol A content). |
| โ Safety Data Sheet (SDS) | โ๏ธ | Section 3 (Composition) is critical for customs to verify chemical nature. |
| โ Product Technical Data Sheet | โ๏ธ | Highlight "High Absorption" properties but confirm it is an "Epoxy Resin." |
| โ Commercial Invoice | โ๏ธ | Must clearly state: "Epoxy Resin, High Absorption, For Industrial Use, Model XYZ." Avoid vague terms like "Adhesive Component." |
| โ Certificate of Origin (CO) | โ๏ธ | Required to apply Section 301 tariffs correctly and avoid origin disputes. |
| โ Packaging List | โ๏ธ | Detail net/gross weights. Ensure no mixed shipments with non-epoxy polyethers. |
โ 2. Declaration Tips (Key Mnemonic)
๐ฅ "Chemical Truth Over Physical Trait, Epoxy is 3907.30, Not 3907.29!"
| Scenario | Correct Declaration | Incorrect Practice |
|---|---|---|
| High Absorption Epoxy | 3907.30.00.00 (Epoxide Resins) |
Misdeclare as "Polyether" (3907.29) โ Tax Evasion Risk |
| Mixed Shipment (Epoxy + Non-Epoxy) | Split line items correctly | Combine under one HS Code โ Customs Audit Trigger |
| "Epoxy Adhesive" (Ready-to-use) | May fall under 3506 or 9006 depending on formulation | Assume all epoxy-containing products are 3907.30 โ Check Final Form |
๐ Important Note:
- If the product is a finished adhesive already mixed with hardeners or fillers, it might be classified elsewhere (e.g., 3506.10 or 9006.99).
- Only raw or primary form epoxide resins go to 3907.30.00.00.
- "High Absorption" does not change the primary form status.
โ 3. Special Situation Handling
| Situation | Handling Advice |
|---|---|
| OEM Custom Epoxy | Provide formula sheets or equivalence weights to prove it's an epoxide resin. |
| Solid vs. Liquid Form | Both are "Primary Forms" under 3907.30. No distinction in HS Code. |
| High-Performance/Industrial Grade | No special tariff relief. Still subject to 31.1%. |
| Shipment from Vietnam/Malaysia | If substantially transformed in those countries, may avoid US Section 301 tariffs. Requires strict proof of origin. |
๐ V. Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff Rate (China Origin) | Certification Requirements | Notes |
|---|---|---|---|---|
| ๐บ๐ธ USA | 3907.30.00.00 |
31.1% (6.1% + 25%) | None specific for raw resin | High duty burden. |
| ๐จ๐ณ China | 3907.30.00.00 |
6.1% (Import Duty) | None | Base rate applies. |
| ๐ช๐บ EU | 3907.30 |
6.5% | REACH Registration Required | High regulatory barrier for chemicals. |
| ๐ฌ๐ง UK | 3907.30 |
6.5% | UK REACH | Post-Brexit regulations apply. |
| ๐ฎ๐ณ India | 3907.30 |
7.5% - 10% | BIS Certification may be needed | Varies by specific type. |
๐ Conclusion:
- The USA remains the most expensive market for Chinese-origin epoxide resins due to the 25% Section 301 tariff.
- EU and UK have no political tariffs but impose REACH/UK REACH chemical registration costs, which can be higher than the tariff itself.
- China offers the lowest base duty.
๐ VI. Common Errors & Pitfall Avoidance (Lessons Learned)
โ Error 1: Classifying epoxy resin as "Other Polyethers" (3907.29) to avoid the 25% tariff.
๐ Consequence: Customs rejection, back-taxes of 25%, and potential fraud charges.
๐ Fix: Provide SDS and chemical analysis proving epoxide groups.
โ Error 2: Vague description: "Resin for Adhesives."
๐ Consequence: Customs may reclassify or delay shipment for further review.
๐ Fix: Use precise terminology: "Bisphenol A Type Epoxide Resin, High Absorption."
โ Error 3: Ignoring "Primary Form" requirement.
๐ Consequence: If the epoxy is already in a ready-to-use adhesive paste, it may not be 3907.30.
๐ Fix: Verify if it is a raw resin or a finished formulation.
โ Correct Practice:
"Epoxide Resin, High Absorption, Bisphenol A Type, Primary Form, For Industrial Coatings, Model XYZ, Chemical Structure Confirmed"
๐ฏ VII. Conclusion: Precision in Classification, Efficiency in Clearance
๐ฏ Key Takeaways:
๐น "Epoxy is 3907.30, Never 3907.29."
๐น "31.1% is the Real Cost for US Imports."
๐น "Documentation is King: SDS + Invoice Accuracy."
๐ Pro Tip:
If your High Absorption Epoxy Resin is sourced from Vietnam, Thailand, or Mexico, verify the Substantial Transformation criteria. Proper documentation can help avoid the 25% Section 301 tariff, reducing the total tax to just the base rate (6.1% in US).
๐ฃ Immediate Action:
๐ Engage a licensed customs broker.
๐ Prepare SDS and Chemical Composition Reports.
๐ Apply for HTSUS Ruling if unsure about the chemical classification.
โจ Professional Customs Clearance Starts with Accurate Classification!
๐ผ Every percentage point of duty counts!
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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) โ Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) โ More specific grouping within the chapter
- Subheading (6 digits) โ Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) โ 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 โ The standard duty rate applied to WTO members
- General rate โ Applied to countries without trade agreements
- Trade remedy duties โ 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.