High performance polymer base
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3908907000 | 41.5% | CN | US | Official Doc |
| 3909505000 | 41.3% | CN | US | Official Doc |
| 3909310000 | 41.5% | CN | US | Official Doc |
| 3908100000 | 41.3% | CN | US | Official Doc |
| 3907100000 | 41.5% | CN | US | Official Doc |
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AI Analysis
π§ͺ High Performance Polymer Base
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Entry Strategies
π 1. Product Definition & Classification: Do You Understand "High Performance Polymer Base"?
"High performance polymer base" refers to advanced chemical materials characterized by superior mechanical strength, thermal stability, and chemical resistance. In international trade, these are broadly categorized under Chapter 39 (Plastics and Articles Thereof). Specifically, they fall into sub-categories based on their chemical structure (e.g., Polyamides, Polyurethanes, Phenolic Resins, Polyacetal).
β οΈ Key Classification Distinction:
- If the material is a Polyamide (Nylon) base or similar polyamides βε½η±» to 3908 or 3907;
- If the material is a Polyurethane or Amino-resin base βε½η±» to 3909;
- Theε½’ζ (Form) is typically Raw Material / Primary Shape (pellets, powder, granules), not finished goods.
π¦ 2. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
Based on the provided data, here are the five most likely HS Codes for "High Performance Polymer Base," categorized by chemical family:
| HS Code | Product Description | Chemical Family | Material Characteristics |
|---|---|---|---|
3908.90.70.00 |
Other Polyamides in primary forms | Polyamide (PA) / Polymer | High-performance polymer consistent with polyamide attributes; fits "other" category inference. |
3909.50.50.00 |
Other Amino-resins, epoxy resins, polyesters, polyurethanes, etc. | Polyurethane / Amino-Resin | Consistent with polyurethane and amino-resin categories; no conflict in form or use. |
3909.31.00.00 |
Polyurethanes, in primary forms | Polyurethane (PU) / Phenolic | Consistent with amino, phenolic, and polyurethane resins; form is raw/primary product. |
3908.10.00.00 |
Polyamides-12, polyamides-11, polyamides-6,10, polyamides-6,6, polyamides-6,9, polyamides-10,10 in primary forms | Polyamide (PA) | Polyamides belong to the same chemical倧类 (broad category); material fits primary form characteristics. |
3907.10.00.00 |
Polyacetals, other polyethers, and epoxides in primary forms | Polyacetal / Polyester / Polyether | Consistent with polyether/polyester/polyacetal chemical倧类; no material or form conflict with polyacetal. |
π Important Note:
- All codes above represent primary forms (raw materials/powders/pellets).
- If the product is finished parts (e.g., gears, bearings), it may fall under Chapter 39 (Articles) or Chapter 84/85, but the provided data strictly points to raw chemical bases.
- The specific chemical composition (Polyamide vs. Polyurethane vs. Polyacetal) is the deciding factor for selection.
π° 3. 2026 Latest Tariff Rate Details (Including Surtaxes & Policy Add-ons)
β Applicable Country: United States (US)
β Origin: China (CN)
β Effective Date: 2025 November 10 onwards (including subsequent imports)
π― 1. 3908.90.70.00 & 3908.10.00.00 (Polyamide-Based Polymers)
| Item | Content |
|---|---|
| Basic Tariff | 6.5% (for 3908.90.70.00) / 6.3% (for 3908.10.00.00) |
| Section 301 Surcharge | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tax Rate | 41.5% (for 3908.90.70.00) / 41.3% (for 3908.10.00.00) |
| Tax Calculation | CIF Value Γ Total Rate |
| De Minimis Exemption | β Not Available |
| Legal Basis Path | USITC:3908.90.70.00 β 301 Footnote β 122 Clause |
π Explanation:
- Basic Tariff: Standard MFN rate for polyamides.
- 301 Surcharge: 25% applies to Chinese-origin plastic articles/ranges under Section 301.
- 122 Clause: Additional 10% tariff applied to certain chemical/polymer imports.
- Total: Approx 41.3% - 41.5%. This is a high-cost entry for polymer imports.
π― 2. 3909.50.50.00 & 3909.31.00.00 (Polyurethane/Amino-Resin Polymers)
| Item | Content |
|---|---|
| Basic Tariff | 6.3% (for 3909.50.50.00) / 6.5% (for 3909.31.00.00) |
| Section 301 Surcharge | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tax Rate | 41.3% (for 3909.50.50.00) / 41.5% (for 3909.31.00.00) |
| Tax Calculation | CIF Value Γ Total Rate |
| De Minimis Exemption | β Not Available |
| Legal Basis Path | USITC:3909.50.50.00 β 301 Footnote β 122 Clause |
π Note:
- Similar to polyamides, polyurethanes and amino-resins are heavily taxed when sourced from China.
- The difference between 41.3% and 41.5% is negligible in budgeting, but accuracy in HS Code prevents customs delays.
π― 3. 3907.10.00.00 (Polyacetal/Polyether Polymers)
| Item | Content |
|---|---|
| Basic Tariff | 6.5% |
| Section 301 Surcharge | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tax Rate | 41.5% |
| Tax Calculation | CIF Value Γ 41.5% |
| De Minimis Exemption | β Not Available |
| Legal Basis Path | USITC:3907.10.00.00 β 301 Footnote β 122 Clause |
π Explanation:
- Polyacetals (like POM/Delrin) and polyethers are also subject to the same surcharge structure.
- Ensure the product is indeed "polyacetal/polyether" and not mistakenly classified as a generic plastic if it has specific engineering properties.
π οΈ 4. Customs Clearance Practical Advice (Real-World Pitfall Guide)
β 1. Required Documentation Checklist (No Missing Items)
| Document | Mandatory? | Description |
|---|---|---|
| β Product Specification Sheet | βοΈ | Must include chemical composition (e.g., PA66, PU), CAS number, physical form (pellet/powder), and TDS. |
| β Certificate of Origin (CO) | βοΈ | Essential for verifying Chinese origin to apply/confirm surcharges. |
| β Commercial Invoice | βοΈ | Clearly state "High Performance Polymer Base" and specific chemical type (e.g., Polyamide). Avoid vague terms like "Plastic Material." |
| β Packing List | βοΈ | Detail net/gross weight and packaging type. |
| β Third-Party Test Report | βοΈ | MSDS (Material Safety Data Sheet) is critical for chemical imports. |
| β Import License/Compliance Docs | βοΈ | Check if specific EPA or TSCA compliance is needed for chemicals. |
β 2. Declaration Tips (Key Mantra)
π₯ βBe Specific, Be Accurate, Avoid βGeneral Plasticβ!β
| Scenario | Correct Declaration | Incorrect Declaration |
|---|---|---|
| Polyamide Resin | "Polyamide-6,6 Polymer Base, Primary Form, Pellets" | "Plastic Raw Material" |
| Polyurethane Resin | "Polyurethane Prepolymer, Raw Material" | "Polymer" |
| Polyacetal Resin | "Polyacetal (POM) Resin, Primary Form" | "Engineering Plastic" |
| Mixed/Unknown | Do Not Ship until HS Code is confirmed via Pre-Ruling | Guessing leads to 41.5%+ liability + penalties |
β 3. Special Situations Handling
| Situation | Handling Advice |
|---|---|
| OEM Custom Polymer | Provide the Chemical Abstracts Service (CAS) number to prove identity. |
| Blended Polymers | If it's a mix, classify based on the principal material or the material that gives essential character. |
| Small Samples | β No De Minimis Exemption. All shipments are subject to 41.3%-41.5% tax. |
| Origin Shift | If sourced from Vietnam, Mexico, or Thailand, verify if Section 301 and 122 surcharges still apply (usually no, but check current USITC lists). |
π 5. Global Main Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification Required | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 3908.90.70.00 etc. |
41.3% - 41.5% | MSDS, EPA/TSCA | Highest barrier. Surtaxes apply. |
| π¨π³ China | Same HS Codes | ~6.5% | CCC (if applicable) | No surcharges. Low entry cost. |
| πͺπΊ EU | Same HS Codes | ~6.5% | REACH Registration | No surcharges. REACH is key. |
| π―π΅ Japan | Same HS Codes | ~6.0% - 8.0% | JIS Standards | Moderate tariff. |
| π²π½ Mexico | Same HS Codes | ~0% - 5% | NOM Certifications | USMCA Benefit if manufactured in NA. |
π Conclusion:
- USA is the most expensive market for Chinese-sourced high-performance polymers due to Section 301 + 122 surcharges.
- EU and China have similar base rates but no punitive surcharges.
- Mexico offers a potential loophole if the polymer is further processed or sourced under USMCA rules, but check "de minimis" and origin rules carefully.
π 6. Common Errors & Pitfalls Guide (Lessons Learned)
β Error 1: Using generic term "Plastic Pellets"
π Consequence: Customs may misclassify, leading to additional duties or hold-ups for inspection.
π Fix: Use precise chemical names (e.g., "Polyamide 6").
β Error 2: Ignoring Section 122 Tariff
π Consequence: Underpayment by 10%. Customs will issue a demand for payment + interest.
π Fix: Always add 10% to the 301 surcharge calculation for Chapter 39 goods from China.
β Error 3: Claiming "De Minimis" for Small Batches
π Consequence: Seizure or Rejection. There is no de minimis exemption for these HS codes.
π Fix: Budget for full tax even for small samples.
β Correct Practice:
"High Performance Polyamide-6,6 Polymer Base, Primary Form, Pellets, CAS [Number], MSDS Attached, Origin: China"
π― 7. Conclusion: Professional Declaration Saves Money!
π― Remember the Mantra:
πΉ "Polyamide is 3908, Polyurethane is 3909, Polyacetal is 3907."
πΉ "China Origin + Chapter 39 = 41.5% Total Tax."
πΉ "No De Minimis. No Exceptions. Plan Your Budget."
π Pro Tip:
If your polymer is originally from Europe or Japan, the base tariff is similar (~6.5%), but Section 301 and 122 surcharges do NOT apply. Total tax drops to ~6.5%.
Recommendation: Evaluate supply chain origin. If possible, source from non-China countries to save ~35% in duties.
π£ Immediate Action:
π Consult a Customs Broker + Provide MSDS + Apply for HS Code Pre-Ruling
π Ensure Smooth Clearance, Accurate Tariff, and Cost Efficiency!
β¨ Professional Clearance Starts with Accurate Classification!
πΌ Every Cent Saved is Profit Gained!
Customer Reviews
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.