polyether preparation
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 3907210000 | 41.5% | CN | US | 官方文档 |
| 3506915000 | 37.1% | CN | US | 官方文档 |
| 3824992900 | 41.5% | CN | US | 官方文档 |
| 3907290000 | 41.5% | CN | US | 官方文档 |
| 3824994900 | 41.5% | CN | US | 官方文档 |
商品图片
AI分析
🧪 Polyether Preparation (Polyether Adhesive Mixtures)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional通关 Strategy
📌 I. Product Definition & Classification: Do You Really Understand "Polyether Adhesive Mixtures"?
Polyether-based adhesive mixtures are complex chemical formulations primarily used in bonding, sealing, and industrial assembly. In international trade, these products fall under various Harmonized System (HS) codes depending on their material composition, physical form, and primary function.
⚠️ Key Distinction Points:
- If the product is primarily a polyether raw material in its original chemical form → It may fall under Chapter 39 (Plastics).
- If the product is primarily formulated for adhesive purposes using polymer components → It may fall under Chapter 35 (Animal/Plant Proteins/Prepared Glues).
- If the product is a general-purpose chemical mixture containing polyether derivatives → It may fall under Chapter 38 (Miscellaneous Chemical Products).
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Application Scenario | Material/State |
|---|---|---|---|
3907.21.00.00 |
Polyether adhesive mixture, material: polyether, form: original chemical mixture | Raw polyether blends for further processing | ✅ Polyether |
3506.91.50.00 |
Polyether adhesive mixture, material: polymer, use: prepared adhesive | Ready-to-use adhesives based on polymeric components | ✅ Polymer |
3824.99.29.00 |
Polyether adhesive mixture, material: polyether-based chemical substance, form: mixture | General chemical mixtures containing polyether | ✅ Polyether Chemicals |
3907.29.00.00 |
Polyether adhesive mixture, material: polyether, form: within chemical raw materials category | Industrial chemical feedstock | ✅ Polyether |
3824.99.49.00 |
Polyether adhesive mixture, use: adhesive, material: hydrocarbon derivative | Adhesives derived from hydrocarbon derivatives | ✅ Hydrocarbon Derivative |
🔍 Key Reminder:
- The classification depends heavily on the primary characteristic declared in the commercial invoice and technical datasheet.
- Chapter 39 items are often viewed as "plastics/polymers"; Chapter 35 as "glues/adhesives"; Chapter 38 as "other chemical products."
- Misclassification can lead to significant tariff differences and customs delays.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Surtaxes & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Country of Origin: China (CN)
✅ Effective Date: From November 10, 2025 (including subsequent imports)
🎯 1. 3907.21.00.00 —— Polyether Adhesive Mixture (Material: Polyether)
| Item | Content |
|---|---|
| Base Tariff | 6.5% (ad valorem) |
| Section 301 Surcharge | +25% (USITC Footnote 9903.88.01) |
| Section 122 IEEPA Surcharge | +10% (Targeting Chinese/HK products from Nov 10, 2025) |
| Total Tariff Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption Eligible | ❌ No (deny_de_minimis) |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:3907.21.00.00 → FOOTNOTE:9903.88.01 |
📌 Explanation:
- The 25% Section 301 duty applies to most Chinese-origin chemical plastics and polyethers.
- The 10% IEEPA duty is a new addition under International Emergency Economic Powers Act targeting specific chemical categories.
- Total 41.5% is a high tariff rate, requiring proactive cost assessment.
🎯 2. 3506.91.50.00 —— Polyether Adhesive Mixture (Material: Polymer, Use: Prepared Adhesive)
| Item | Content |
|---|---|
| Base Tariff | 2.1% (ad valorem) |
| Section 301 Surcharge | +25% |
| Section 122 IEEPA Surcharge | +10% |
| Total Tariff Rate | 37.1% |
| Tax Calculation | CIF Value × 37.1% |
| De Minimis Exemption Eligible | ❌ No |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:3506.91.50.00 → FOOTNOTE:9903.88.01 |
📌 Note:
- This code has a lower base rate (2.1%) compared to Chapter 39 codes (6.5%), but the surcharges remain identical.
- Suitable for products explicitly marketed and formulated as "prepared adhesives" rather than raw chemical mixtures.
🎯 3. 3824.99.29.00 —— Polyether Adhesive Mixture (Material: Polyether Chemicals)
| Item | Content |
|---|---|
| Base Tariff | 6.5% |
| Section 301 Surcharge | +25% |
| Section 122 IEEPA Surcharge | +10% |
| Total Tariff Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption Eligible | ❌ No |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:3824.99.29.00 → FOOTNOTE:9903.88.01 |
📌 Note:
- Classified under "Other chemical products," this code applies to polyether-based mixtures that do not fit neatly into plastics or traditional glues.
- High base tariff makes it expensive for direct import.
🎯 4. 3907.29.00.00 —— Polyether Adhesive Mixture (Material: Polyether, Form: Chemical Raw Materials)
| Item | Content |
|---|---|
| Base Tariff | 6.5% |
| Section 301 Surcharge | +25% |
| Section 122 IEEPA Surcharge | +10% |
| Total Tariff Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption Eligible | ❌ No |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:3907.29.00.00 → FOOTNOTE:9903.88.01 |
📌 Note:
- "Other polyethers" category. Often used when the specific polyether type doesn't match3907.21.
- Same high tariff burden as3907.21.
🎯 5. 3824.99.49.00 —— Polyether Adhesive Mixture (Use: Adhesive, Material: Hydrocarbon Derivative)
| Item | Content |
|---|---|
| Base Tariff | 6.5% |
| Section 301 Surcharge | +25% |
| Section 122 IEEPA Surcharge | +10% |
| Total Tariff Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption Eligible | ❌ No |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:3824.99.49.00 → FOOTNOTE:9903.88.01 |
📌 Note:
- Specifically targets adhesives made from hydrocarbon derivatives.
- If your polyether adhesive is primarily hydrocarbon-based, this code applies.
- High tariff rate persists.
🛠️ IV. Customs Clearance Practical Advice (Real-World Pitfall Avoidance Guide)
✅ 1. Required Documentation Checklist (None Missing)
| Document | Mandatory | Description |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Detailed chemical composition, CAS numbers, pH, viscosity, curing time |
| ✅ Technical Data Sheet (TDS) | ✔️ | Must clearly state primary use: "Adhesive," "Sealant," or "Raw Material" |
| ✅ Safety Data Sheet (SDS) | ✔️ | Required for chemical safety assessment; must comply with GHS standards |
| ✅ Commercial Invoice | ✔️ | Must accurately describe the product according to the chosen HS Code |
| ✅ Certificate of Origin (CO) | ✔️ | Proves Chinese origin; crucial for applying surcharges correctly |
| ✅ Packing List | ✔️ | Net/Gross weight, dimensions, hazard class (if applicable) |
| ✅ Third-Party Test Report | ✔️ | MSDS verification, purity analysis, or adhesive strength tests |
✅ 2. Declaration Tips (Key Mantras)
🔥 "Characteristics Dictate Code, Function Determines Chapter, Name Must Be Precise!"
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Raw polyether blend for further mixing | 3907.21.00.00 or 3907.29.00.00 |
Mislabel as "Adhesive" → Risk of audit |
| Ready-to-use polyether glue | 3506.91.50.00 |
Mislabel as "Raw Material" → Lower base rate but potential reclassification |
| General chemical mixture with polyether | 3824.99.29.00 |
Vague description "Chemical Mix" → Delay |
| Hydrocarbon-based polyether adhesive | 3824.99.49.00 |
Wrong material description → Penalty |
📌 Crucial Point:
- If the product is already mixed and ready for bonding, emphasize "Prepared Adhesive" to potentially qualify for3506.91.50.00(37.1% vs 41.5%).
- If it is a bulk chemical intermediate, emphasize "Polyether Raw Material" for3907codes.
- Do not use vague terms like "Glue" without specifying material basis.
✅ 3. Special Case Handling
| Scenario | Handling Advice |
|---|---|
| OEM Custom Polyether Adhesive | Provide client order + formulation sheet. Prove if it's a "raw material" or "finished adhesive." |
| Mixed Package (Adhesive + Primer) | Declare as one article if functionally inseparable. If separable, may need split declaration. |
| Hazardous Chemicals | Ensure SDS and UN Number are correctly declared. Failure leads to detention. |
| Export from Vietnam/Mexico | If re-exported, origin may shift. However, if polyether raw material is Chinese, origin tracing may still apply surcharges. |
🌍 V. Global Market Customs Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification Requirements | Notes |
|---|---|---|---|---|
| 🇺🇸 United States | 3506.91.50.00 (Best Case) |
37.1% (Adhesive) / 41.5% (Other) | EPA, OSHA, SDS | High surcharges apply |
| 🇨🇳 China | 3506.91.50.00 |
~2.1% - 6.5% | CCC (if applicable), GB Standards | Lower base rates, no surcharges |
| 🇪🇺 European Union | 3506.91.50.00 |
~0% - 4% (varies) | REACH, CLP, SDS | REACH registration required for imports >1 ton |
| 🇬🇧 United Kingdom | 3506.91.50.00 |
~0% - 4% | UK REACH, UK CA | Post-Brexit rules apply |
| 🇦🇺 Australia | 3506.91.50.00 |
~5% | AICIS, WHS | Low base tariff, no major surcharges |
📌 Conclusion:
- The US imposes the heaviest burden due to Section 301 and Section 122 duties.
- EU and UK focus on REACH/UK REACH compliance rather than high tariffs.
- Targeting3506.91.50.00in the US saves 4.4% compared to other codes, but requires solid evidence that the product is a "prepared adhesive."
📌 VI. Common Mistakes & Pitfall Guide (Lessons from Blood and Tears)
❌ Mistake 1: Declaring "Polyether" without specifying if it's a "Raw Material" or "Finished Adhesive"
👉 Consequence: Customs may reclassify to the highest applicable code (41.5%) + penalties.
❌ Mistake 2: Ignoring the "Section 122 IEEPA" 10% surcharge
👉 Consequence: Unexpected cost increase of 10% on CIF value. Not included in old tariff calculators!
❌ Mistake 3: Using "Glue" as the sole description
👉 Consequence: Lack of chemical detail leads to examination delays. Must provide CAS numbers and composition %.
❌ Mistake 4: Attempting to use De Minimis ($800) exemption
👉 Consequence: Denied. Chemical goods subject to Section 301/122 are explicitly excluded from de minimis relief for Chinese origin.
✅ Correct Practice:
"Polyether-Based Prepared Adhesive Mixture, Non-Hazardous, CAS No. [XXXX-XX-X], Viscosity: XXX cPs, Primary Use: Industrial Bonding, HS: 3506.91.50.00"
🎯 VII. Conclusion: Professional Declaration, Save Time and Money!
🎯 Remember the Mantra:
🔹 "Adhesive Form? Choose 3506. Raw Polyether? Choose 3907. Chemical Mix? Choose 3824."
🔹 "37.1% vs 41.5%: A 4.4% Difference That Matters!"
🔹 "Section 122 is New: Don't Forget the Extra 10%!"
📌 Pro Tip:
If your polyether adhesive is sourced from Vietnam, Mexico, or Thailand, verify the substantial transformation rules. If the polyether raw material is Chinese, the US may still apply surcharges under anti-circumvention rules.
Recommendation: Apply for a Binding Tariff Ruling (BTR) with US Customs and Border Protection (CBP) before shipment to secure the correct HS Code and tariff rate.
📣 Take Action Now:
📞 Consult a licensed customs broker + Provide Detailed TDS/SDS + Apply for Pre-Ruling
🚀 Ensure your Polyether Adhesives clear customs smoothly, minimize duties, and maximize profits!
✨ Professional Customs Clearance Starts with Precise Classification!
💼 Every Penny of Your Cost Deserves Precise Calculation!
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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。