Modified PTFE Dispersion
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 3901909000 | 41.5% | CN | US | 官方文档 |
| 3904610090 | 40.8% | CN | US | 官方文档 |
| 3901905501 | 41.5% | CN | US | 官方文档 |
| 3914006000 | 38.9% | CN | US | 官方文档 |
| 3904610010 | 40.8% | CN | US | 官方文档 |
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AI分析
🏭 Modified PTFE Dispersion (Polychlorotrifluoroethylene & Related Fluoropolymers)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Entry Strategy
📌 Part I: Product Definition & Classification: What Exactly is "Modified PTFE Dispersion"?
Modified PTFE Dispersion refers to a fluid form of Polytetrafluoroethylene (PTFE) or its modified derivatives, where the polymer particles are suspended in a carrier medium (usually water or organic solvents). Unlike solid pellets, this is a liquid/emulsion state, primarily used for coating, impregnation, or sintering into specific shapes.
In international trade, the classification depends heavily on the chemical structure (whether it is pure PTFE or a copolymer/modified version) and the form (primarily shaped vs. other).
⚠️ Key Distinction Point:
- If the product is a liquid dispersion/emulsion and not in a primary solid shape (pellets, powder), it generally falls under Chapter 39 (Plastics and Articles Thereof), specifically heading 3904 (Fluoropolymers) or 3901 (Ethylene polymers) depending on the base polymer.
- The term "Modified" often implies a copolymer or an additive blend, which can shift classification between 3904 (Pure/Simple Fluoropolymers) and 3901 (Other Ethylene Polymers) or 3914 (Ion Exchangers/Others).
- Primary Shape vs. Other: While PTFE is often sold as pellets (primary shape), dispersions are technically "other" forms unless specifically defined as such in national subheadings. However, some codes listed below treat specific granular/powdered variants under "primary shape" interpretations for duty purposes.
📦 Part II. HS Code Classification Matrix (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Applicable Scenario | Material Category |
|---|---|---|---|
3901.90.90.00 |
Modified PTFE Particles, belonging to the fluoropolymer category, in granular form, conforming to primary/initial shape. | Modified PTFE granules/powders intended for sintering. | ✅ Ethylene Polymer Category |
3904.61.00.90 |
Polytetrafluoroethylene (PTFE) Particles, conforming to fluoropolymer classification, falling under "other" categories of this code. | Standard PTFE emulsion/powder residues or non-standard granules. | ✅ Pure Fluoropolymer (PTFE) |
3901.90.55.01 |
Modified PTFE Particles, conforming to primary shape definition, belonging to the polymer category under ethylene copolymers. | Specific modified PTFE copolymers classified as ethylene derivatives. | ✅ Ethylene Copolymer |
3914.00.60.00 |
Polytetrafluoroethylene Particles, belonging to the polymer range, conforming to primary form, classified under ion exchange resins - other. | Specialized PTFE forms misclassified or broadly categorized under "other polymers/ion exchangers" for specific trade zones. | ✅ Other Polymer/Ion Exchange |
3904.61.00.10 |
Polytetrafluoroethylene (PTFE) Granular, fully conforming to material and granular morphology requirements. | Standard PTFE granular product, clearly defined as granular. | ✅ Pure Fluoropolymer (PTFE) |
🔍 Important Note:
- "Dispersion" vs. "Particle/Granule": The data provided (3901.90.90.00, etc.) describes particles/granules. If you are importing a liquid dispersion (emulsion), customs may require conversion or specific subheadings for "emulsions" within 3904 or 3901. However, the selected codes below reflect the solid/powdered state often used for final product manufacturing, as indicated in the source data.
- "Modified" Impact: Modified PTFE often loses its "pure PTFE" status, pushing it into 3901 (Ethylene-based) or 3914 (Other), which have different duty structures than pure 3904.
💰 Part III. 2026 Latest Tariff Rate Breakdown (Including Surtaxes & Policy Additions)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: Post-2025 Trade Policy Enactment
🎯 1. 3901.90.90.00 —— Modified PTFE Particles (Ethylene Polymer Category)
| Item | Detail |
|---|---|
| Base Tariff | 6.5% |
| USITC Surcharge (Section 301) | +25.0% |
| IEEPA Surcharge (Section 122) | +10.0% |
| Total Tariff Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Eligibility | ❌ No (High tariff threshold) |
| Legal Basis Path | USITC:3901.90.90.00 → FOOTNOTE:301 → IEEPA:122 |
📌 Explanation:
- This code classifies modified PTFE as an ethylene polymer. The base rate is higher than pure fluoropolymers.
- The 41.5% total includes the standard 6.5% MFN rate, the heavy 25% Section 301 tariff on Chinese goods, and an additional 10% under Section 122 (or similar emergency powers).
- Risk: High. Any misclassification to pure PTFE (3904) could lead to penalties, but pure PTFE also faces high tariffs.
🎯 2. 3904.61.00.90 —— Polytetrafluoroethylene (PTFE) Particles (Other)
| Item | Detail |
|---|---|
| Base Tariff | 5.8% |
| USITC Surcharge (Section 301) | +25.0% |
| IEEPA Surcharge (Section 122) | +10.0% |
| Total Tariff Rate | 40.8% |
| Tax Calculation | CIF Value × 40.8% |
| De Minimis Eligibility | ❌ No |
| Legal Basis Path | USITC:3904.61.00.90 → FOOTNOTE:301 → IEEPA:122 |
📌 Explanation:
- Cheapest Option in the list.
- Classified as "Other" PTFE particles. If your product is unmodified or minimally modified pure PTFE, this is the optimal code.
- The base rate (5.8%) is slightly lower than3901.90.90.00(6.5%).
- Critical: Must prove the product is PTFE and not a complex ethylene copolymer.
🎯 3. 3901.90.55.01 —— Modified PTFE Particles (Ethylene Copolymer)
| Item | Detail |
|---|---|
| Base Tariff | 6.5% |
| USITC Surcharge (Section 301) | +25.0% |
| IEEPA Surcharge (Section 122) | +10.0% |
| Total Tariff Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Eligibility | ❌ No |
| Legal Basis Path | USITC:3901.90.55.01 → FOOTNOTE:301 → IEEPA:122 |
📌 Explanation:
- Specific subheading for ethylene copolymers that are modified PTFE variants.
- Same total rate as3901.90.90.00. Use this only if the product fits the specific "ethylene copolymer" definition in local subheadings.
🎯 4. 3914.00.60.00 —— Polytetrafluoroethylene Particles (Other Category)
| Item | Detail |
|---|---|
| Base Tariff | 3.9% |
| USITC Surcharge (Section 301) | +25.0% |
| IEEPA Surcharge (Section 122) | +10.0% |
| Total Tariff Rate | 38.9% |
| Tax Calculation | CIF Value × 38.9% |
| De Minimis Eligibility | ❌ No |
| Legal Basis Path | USITC:3914.00.60.00 → FOOTNOTE:301 → IEEPA:122 |
📌 Explanation:
- Lowest Base Rate (3.9%).
- Classified under "Ion Exchange Agents and Other Polymers..." as "Other".
- Risk: High risk of reclassification. Customs may argue PTFE is a fluoropolymer (3904) and not an ion exchanger/other polymer. Use with caution and strong technical justification.
🎯 5. 3904.61.00.10 —— Polytetrafluoroethylene (PTFE) Granular (Specific)
| Item | Detail |
|---|---|
| Base Tariff | 5.8% |
| USITC Surcharge (Section 301) | +25.0% |
| > IEEPA Surcharge (Section 122) | +10.0% |
| Total Tariff Rate | 40.8% |
| Tax Calculation | CIF Value × 40.8% |
| De Minimis Eligibility | ❌ No |
| Legal Basis Path | USITC:3904.61.00.10 → FOOTNOTE:301 → IEEPA:122 |
📌 Explanation:
- Specific granular form of PTFE.
- Identical rate to3904.61.00.90.
- Use if the product is strictly granular and not a fine powder or emulsion.
🛠️ Part IV. Customs Clearance Practical Advice (Field Survival Guide)
✅ 1. Document Checklist (Non-Negotiable)
| Document | Required | Notes |
|---|---|---|
| ✅ Technical Data Sheet (TDS) | ✔️ | Must clearly state: Chemical Formula (e.g., C2F4)n, Form (Dispersion/Particle), Modifier Type. |
| ✅ MSDS/SDS | ✔️ | Shows safety info; confirms no hazardous additives that change classification. |
| ✅ Certificate of Origin | ✔️ | Essential for 301/122 surcharge verification. |
| ✅ Product Photos (Clear) | ✔️ | Show state (powder/granule/liquid). If liquid, label as "Emulsion/Dispersion". |
| ✅ Formula/Composition Breakdown | ✔️ | Crucial for "Modified" vs. "Pure" distinction. |
| ✅ Commercial Invoice | ✔️ | Must describe item accurately: "Modified PTFE Granules for [Application]". |
✅ 2. Classification Strategy (Key Mnemonics)
🔥 "Pure PTFE is 3904, Modified is 3901/3914, Granules vs. Powders matter!"
| Scenario | Recommended Code | Why? |
|---|---|---|
| Unmodified PTFE Powder/Granules | 3904.61.00.10 / .90 |
Pure fluoropolymer, lowest risk for 3904 classification. |
| Modified PTFE (Copolymer/Additives) | 3901.90.90.00 / .55.01 |
"Modified" often shifts to ethylene polymer category (3901). |
| Specialty "Other" Polymer PTFE | 3914.00.60.00 |
Only if you have strong legal basis for "Ion Exchange/Other" category. Low base rate but high audit risk. |
| Liquid Dispersion (Emulsion) | Check 3904 Subheadings | The provided data focuses on particles. If importing liquid, ensure it's not misdeclared as solid. |
⚠️ Pitfall Alert:
- Do not declare "Liquid Dispersion" under codes that explicitly say "Particles" or "Granules" (3904.61.00.10) without clarification. Customs may reject it as "Not Matching Description."
- "Modified": If you claim "Modified" but it's pure PTFE, you face penalties for under-declaration. If you claim "Pure" but it's modified, you face penalties for over-declaration. Be precise.
✅ 3. Special Cases & Mitigation
| Case | Advice |
|---|---|
| OEM Private Label PTFE | Provide contract showing formulation. If modified, disclose modifiers. |
| Mix of PTFE and Fillers (e.g., Carbon, Graphite) | If fillers change the essential character, it may move to 3916/3920 (Sheets/Films) or stay in 3904 if <20% filler. Check 3904 notes. |
| Small Samples (<$800) | De Minimis Exemption Likely Blocked due to high tariff base and 301/122 rules. Assume 40%+ tax applies even for samples. |
| Re-export from Third Country | If processed in Vietnam/Mexico, apply for Preferential Treatment (USMCA/FTA) to bypass 301/122 surcharges. |
🌍 Part V. Global Market Comparison (2026 Overview)
| Region | Preferred HS Code | Est. Total Duty (China Origin) | Key Requirement |
|---|---|---|---|
| 🇺🇸 USA | 3904.61.00.10 / .90 |
40.8% | High scrutiny on "Modified" status. 301+122 tariffs apply. |
| 🇨🇳 China | 3904.61.00.00 |
10-12% | Import tariff + VAT. No 301 surcharge. |
| 🇪🇺 EU | 3904.61.00 |
6.5% | Standard MFN. No US-style surcharges. |
| 🇬🇧 UK | 3904.61.00 |
6.5% | Post-Brexit tariff. No 301. |
| 🇯🇵 Japan | 3904.61.00 |
6.0% | No surcharges. |
📌 Conclusion:
- The US market is the most expensive for PTFE/Modified PTFE imports due to the 40-41.5% effective rate.
- Cost Optimization: Consider sourcing from Vietnam or Malaysia (if PTFE processing occurs there) to leverage trade agreements and avoid Section 301/122 tariffs.
- Documentation is Key: Clearly distinguish between "Pure PTFE" and "Modified PTFE" to avoid customs delays.
📌 Part VI. Common Errors & Lessons Learned (Blood & Tears)
❌ Error 1: Declaring "Liquid PTFE Dispersion" as "PTFE Granules"
👉 Consequence: Customs inspection reveals liquid. Seizure or massive delay. Liquid must be declared under appropriate emulsion subheadings if different.
❌ Error 2: Ignoring "Modified" additives
👉 Consequence: If PTFE is modified with silicone or carbon, it might not be pure 3904. Misclassification leads to back-taxes + penalties.
❌ Error 3: Assuming De Minimis ($800) applies
👉 Consequence: 40%+ tax applies even to small shipments from China. Budget accordingly.
❌ Error 4: Using generic name "Plastic Particles"
👉 Consequence: Customs assigns wrong code, leading to audits. Always specify "Polytetrafluoroethylene (PTFE)".
✅ Correct Practice:
"Modified Polytetrafluoroethylene (PTFE) Granules, 100% Fluoropolymer, For Sintering, Non-Hazardous, MSDS Attached, Origin: China"
🎯 Part VII. Conclusion: Precision in Classification Saves Money!
🎯 Remember the Motto:
🔹 "Pure PTFE is 3904, Modified is 3901, Tax is 40%, Docs are 100%!"
🔹 "Don't Guess 'Modified', Prove It. Don't Guess 'Dispersion', Show It."
📌 Pro Tip:
If your Modified PTFE is produced in a USMCA Country (Canada/Mexico) or ASEAN Country, apply for Preferential Tariff Treatment. You could reduce the duty from 41.5% to 0% or Low Single Digits.
Action Item:
📞 Contact Customs Broker + Provide Technical Specs + Apply for HTS Code Ruling
🚀 Clear Customs Smoothly, Minimize Tax Burden, Maximize Profit!
✨ Professional Customs Clearance Starts with Accurate Classification!
💼 Every Percent Saved is Pure Profit!
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关于 HS 编码归类
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- 最惠国（MFN）税率——适用于 WTO 成员国的标准关税税率
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