High performance polymer base
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 3908907000 | 41.5% | CN | US | 官方文档 |
| 3909505000 | 41.3% | CN | US | 官方文档 |
| 3909310000 | 41.5% | CN | US | 官方文档 |
| 3908100000 | 41.3% | CN | US | 官方文档 |
| 3907100000 | 41.5% | CN | US | 官方文档 |
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AI分析
🧪 High Performance Polymer Base
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Entry Strategies
📌 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).
⚠️ Key Classification Distinction:
- If the material is a Polyamide (Nylon) base or similar polyamides →归类 to 3908 or 3907;
- If the material is a Polyurethane or Amino-resin base →归类 to 3909;
- The形态 (Form) is typically Raw Material / Primary Shape (pellets, powder, granules), not finished goods.
📦 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大类 (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大类; no material or form conflict with polyacetal. |
🔍 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.
💰 3. 2026 Latest Tariff Rate Details (Including Surtaxes & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: 2025 November 10 onwards (including subsequent imports)
🎯 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 × Total Rate |
| De Minimis Exemption | ❌ Not Available |
| Legal Basis Path | USITC:3908.90.70.00 → 301 Footnote → 122 Clause |
📌 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.
🎯 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 × Total Rate |
| De Minimis Exemption | ❌ Not Available |
| Legal Basis Path | USITC:3909.50.50.00 → 301 Footnote → 122 Clause |
📌 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.
🎯 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 × 41.5% |
| De Minimis Exemption | ❌ Not Available |
| Legal Basis Path | USITC:3907.10.00.00 → 301 Footnote → 122 Clause |
📌 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.
🛠️ 4. Customs Clearance Practical Advice (Real-World Pitfall Guide)
✅ 1. Required Documentation Checklist (No Missing Items)
| Document | Mandatory? | Description |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must include chemical composition (e.g., PA66, PU), CAS number, physical form (pellet/powder), and TDS. |
| ✅ Certificate of Origin (CO) | ✔️ | Essential for verifying Chinese origin to apply/confirm surcharges. |
| ✅ Commercial Invoice | ✔️ | Clearly state "High Performance Polymer Base" and specific chemical type (e.g., Polyamide). Avoid vague terms like "Plastic Material." |
| ✅ Packing List | ✔️ | Detail net/gross weight and packaging type. |
| ✅ Third-Party Test Report | ✔️ | MSDS (Material Safety Data Sheet) is critical for chemical imports. |
| ✅ Import License/Compliance Docs | ✔️ | Check if specific EPA or TSCA compliance is needed for chemicals. |
✅ 2. Declaration Tips (Key Mantra)
🔥 “Be Specific, Be Accurate, Avoid ‘General Plastic’!”
| 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 |
✅ 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 | ❌ 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). |
🌍 5. Global Main Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification Required | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3908.90.70.00 etc. |
41.3% - 41.5% | MSDS, EPA/TSCA | Highest barrier. Surtaxes apply. |
| 🇨🇳 China | Same HS Codes | ~6.5% | CCC (if applicable) | No surcharges. Low entry cost. |
| 🇪🇺 EU | Same HS Codes | ~6.5% | REACH Registration | No surcharges. REACH is key. |
| 🇯🇵 Japan | Same HS Codes | ~6.0% - 8.0% | JIS Standards | Moderate tariff. |
| 🇲🇽 Mexico | Same HS Codes | ~0% - 5% | NOM Certifications | USMCA Benefit if manufactured in NA. |
📌 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.
📌 6. Common Errors & Pitfalls Guide (Lessons Learned)
❌ Error 1: Using generic term "Plastic Pellets"
👉 Consequence: Customs may misclassify, leading to additional duties or hold-ups for inspection.
👉 Fix: Use precise chemical names (e.g., "Polyamide 6").
❌ Error 2: Ignoring Section 122 Tariff
👉 Consequence: Underpayment by 10%. Customs will issue a demand for payment + interest.
👉 Fix: Always add 10% to the 301 surcharge calculation for Chapter 39 goods from China.
❌ Error 3: Claiming "De Minimis" for Small Batches
👉 Consequence: Seizure or Rejection. There is no de minimis exemption for these HS codes.
👉 Fix: Budget for full tax even for small samples.
✅ Correct Practice:
"High Performance Polyamide-6,6 Polymer Base, Primary Form, Pellets, CAS [Number], MSDS Attached, Origin: China"
🎯 7. Conclusion: Professional Declaration Saves Money!
🎯 Remember the Mantra:
🔹 "Polyamide is 3908, Polyurethane is 3909, Polyacetal is 3907."
🔹 "China Origin + Chapter 39 = 41.5% Total Tax."
🔹 "No De Minimis. No Exceptions. Plan Your Budget."
📌 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.
📣 Immediate Action:
📞 Consult a Customs Broker + Provide MSDS + Apply for HS Code Pre-Ruling
🚀 Ensure Smooth Clearance, Accurate Tariff, and Cost Efficiency!
✨ Professional Clearance Starts with Accurate Classification!
💼 Every Cent Saved is Profit Gained!
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关于 HS 编码归类
协调制度（HS）是由世界海关组织（WCO）制定的国际贸易商品分类标准。全球 200 多个国家采用 HS 系统作为海关关税、贸易统计和进出口监管的基础。
每个 HS 编码遵循以下层级结构：
- 章（2 位）——商品大类（例如：第 84 章：机器和机械设备）
- 品目（4 位）——章内的更具体分类
- 子目（6 位）——国际通用细分，所有 WCO 成员国统一使用
- 本国细分（8-10 位）——各国自行扩展的细分编码，如美国 HTSUS 10 位编码
正确的 HS 编码归类对于顺利通关、准确缴纳关税和遵守贸易法规至关重要。错误归类可能导致海关延误、多缴关税或罚款。
从CN进口到US时，适用的关税税率可能包括：
- 最惠国（MFN）税率——适用于 WTO 成员国的标准关税税率
- 普通税率——适用于无贸易协定国家
- 贸易救济关税——附加关税，如 301 条款（反倾销）、232 条款（国家安全）或反补贴税
本页内容仅供参考。如需正式归类，请咨询当地海关或持牌报关代理。