Natural Rubber Foam Rubber Sealing Strip
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 4008115000 | 38.3% | CN | US | 官方文档 |
| 4008111000 | 35.0% | CN | US | 官方文档 |
| 4016100000 | 35.0% | CN | US | 官方文档 |
| 4016996050 | 37.5% | CN | US | 官方文档 |
| 4016935010 | 37.5% | CN | US | 官方文档 |
商品图片
AI分析
🛢️ Natural Rubber Foam Rubber Sealing Strip (橡胶泡沫条/密封圈)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition & Classification: What Exactly is "Foam Rubber"?
"Natural Rubber Foam Rubber Sealing Strip" refers to elastomeric materials processed into cellular structures (foam) or specific sealing shapes (strips/rings) made from natural rubber. In international trade, confusion often arises between foam rubber products, cellular rubber products, and finished rubber articles.
Key Distinction: - Foam Rubber (4008): Specifically refers to rubber with an open-cell or closed-cell structure, often cut into strips, sheets, or profiles. It emphasizes the physical structure (porosity) and the material base (natural rubber). - Sealing Rings/O-Rings (4016): Refers to specific shaped articles like O-rings, gaskets, or seals, regardless of whether they are solid or foam. It emphasizes the specific function/shape. - Honeycomb/Cellular Structures (4016.10): A specific sub-category of cellular rubber products, often used for vibration damping or structural support.
⚠️ Critical Classification Point:
- If the product is primarily defined as a strip/profile of foam rubber (cut from a larger foam block/sheet) → It falls under 4008.
- If the product is a specific molded sealing component (like an O-ring or gasket) → It falls under 4016.93.50.
- If the product has a honeycomb cellular structure → It falls under 4016.10.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Application Scenario | Material/Structure Type |
|---|---|---|---|
4008.11.50.00 |
Foam rubber strips, shaped other than obtained directly from the foam mass | Cut foam rubber strips (e.g., weatherstripping, door seals) | ✅ Foam Rubber, Shaped (Strip) |
4008.11.10.00 |
Foam rubber, in strips, blocks or sheets | Basic foam rubber strips, unshaped or minimally shaped | ✅ Foam Rubber, Strip Form |
4016.10.00.00 |
Cellular rubber products, honeycomb | Honeycomb rubber seals, vibration dampers | ✅ Cellular/Honeycomb Structure |
4016.99.60.50 |
Other articles of vulcanized rubber other than hard rubber | General vulcanized rubber strips, non-foam, or non-specific foam | ✅ Vulcanized Rubber, Generic Strip |
4016.93.50.10 |
Gaskets, washers and other seals, of cellular rubber | O-rings, specific sealing rings, gaskets | ✅ Specific Sealing Component |
🔍 Key Reminder:
- 4008 is for raw/semi-finished foam rubber shapes (strips, sheets, blocks).
- 4016 is for finished articles or specific structures (honeycomb, seals).
- Misclassifying a "Foam Strip" as a "Seal" (4016) or vice versa can lead to different duty assessments and customs delays.
💰 III. 2026 Latest Tariff Rate Details (Including Additional Taxes & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Country of Origin: China (CN)
✅ Effective Time: From November 10, 2025 onwards (for subsequent imports)
🎯 1. 4008.11.50.00 — Foam Rubber, Shaped (Strip)
| Item | Content |
|---|---|
| Base Duty Rate | 3.3% (ad valorem) |
| USITC Additional Duty (Section 301) | +25% (From USITC Footnote 9903.88.01) |
| IEEPA Additional Duty (122 Clause) | +10% (Against China/Hong Kong products, from Nov 10, 2025) |
| Total Effective Tax Rate | 38.3% |
| Tax Calculation | CIF Value × 38.3% |
| De Minimis Eligibility | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:4008.11.50.00 → FOOTNOTE:9903.88.01 |
📌 Explanation:
- This code captures foam rubber strips that have been shaped beyond simple cutting (e.g., molded profiles).
- The 3.3% base is relatively low, but the 35% in additional tariffs makes the total cost high.
- Note: The "122 Clause" tariff (+10%) is a specific recent add-on for certain rubber products from China.
🎯 2. 4008.11.10.00 — Foam Rubber, in Strips/Blocks/Sheets
| Item | Content |
|---|---|
| Base Duty Rate | 0.0% (ad valorem) |
| USITC Additional Duty (Section 301) | +25% |
| IEEPA Additional Duty (122 Clause) | +10% |
| Total Effective Tax Rate | 35.0% |
| Tax Calculation | CIF Value × 35.0% |
| De Minimis Eligibility | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | IEEPA:9901.25 → IEEPA:9903.01.24 → USITC:4008.11.10.00 → FOOTNOTE:9903.88.01 |
📌 Note:
- This code is for foam rubber in its most basic strip/block/sheet form.
- Lower base rate (0%) than the shaped version, but still subject to the same high additional tariffs.
- Suitable for raw foam rubber profiles before further molding.
🎯 3. 4016.10.00.00 — Cellular Rubber Products, Honeycomb
| Item | Content |
|---|---|
| Base Duty Rate | 0.0% (ad valorem) |
| USITC Additional Duty (Section 301) | +25% |
| IEEPA Additional Duty (122 Clause) | +10% |
| Total Effective Tax Rate | 35.0% |
| Tax Calculation | CIF Value × 35.0% |
| De Minimis Eligibility | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | IEEPA:9901.25 → IEEPA:9903.01.24 → USITC:4016.10.00.00 → FOOTNOTE:9903.88.01 |
📌 Note:
- Specifically for honeycomb cellular rubber.
- If your "foam strip" has a distinct honeycomb structure, use this code.
- Tax rate is identical to4008.11.10.00.
🎯 4. 4016.99.60.50 — Other Vulcanized Rubber Articles (Strip)
| Item | Content |
|---|---|
| Base Duty Rate | 2.5% (ad valorem) |
| USITC Additional Duty (Section 301) | +25% |
| IEEPA Additional Duty (122 Clause) | +10% |
| Total Effective Tax Rate | 37.5% |
| Tax Calculation | CIF Value × 37.5% |
| De Minimis Eligibility | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:4016.99.60.50 → FOOTNOTE:9903.88.01 |
📌 Note:
- This is a "catch-all" for rubber strips that are vulcanized but don't fit the specific "foam" or "seal" definitions above.
- Higher base rate (2.5%) compared to foam codes.
🎯 5. 4016.93.50.10 — Natural Rubber O-Rings/Seals
| Item | Content |
|---|---|
| Base Duty Rate | 2.5% (ad valorem) |
| USITC Additional Duty (Section 301) | +25% |
| IEEPA Additional Duty (122 Clause) | +10% |
| Total Effective Tax Rate | 37.5% |
| Tax Calculation | CIF Value × 37.5% |
| De Minimis Eligibility | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:4016.93.50.10 → FOOTNOTE:9903.88.01 |
📌 Note:
- Specifically for O-rings and sealing components made of natural rubber.
- If your "strip" is actually a finished O-ring or gasket, use this code.
- Do not use 4008 for finished seals; use 4016.
🛠️ IV. Customs Clearance Practical Advice (Battle-Tested Pitfall Guide)
✅ 1. Preparation Checklist (Must-Haves)
| Document | Required | Explanation |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must specify material (Natural Rubber), structure (Foam/Closed-cell/Open-cell), and shape (Strip/Seal). |
| ✅ Product Photos (Clear) | ✔️ | Show the cross-section to prove "foam" or "cellular" structure vs. solid rubber. |
| ✅ Commercial Invoice | ✔️ | Clearly state "Natural Rubber Foam Strip" or "O-Ring". Avoid vague terms like "Rubber Part". |
| ✅ Packing List | ✔️ | Detail weight and dimensions. |
| ✅ Certificate of Origin (CO) | ✔️ | For US imports, confirm China origin to apply correct tariffs. |
| ✅ MSDS (Material Safety Data Sheet) | ✔️ | Often required for chemical/elastomer products. |
✅ 2. Declaration Tips (Key Mantras)
🔥 "Foam is Strip, Seal is Ring. Base Rate Matters, Tariffs Kill Everything!"
| Scenario | Correct HS Code | Wrong Action | Consequence |
|---|---|---|---|
| Raw foam rubber strip | 4008.11.10.00 |
Declare as "O-Ring" → 4016.93.50.10 |
Base rate 0% → 2.5% (Minor) + Customs Audit Risk |
| Shaped foam profile | 4008.11.50.00 |
Declare as "Strip" → 4008.11.10.00 |
Base rate 3.3% → 0% (Tax Loss) → Penalties |
| Finished O-Ring | 4016.93.50.10 |
Declare as "Strip" → 4008.11.10.00 |
Misclassification → Delays/Fines |
| Honeycomb Rubber | 4016.10.00.00 |
Declare as "Foam Strip" → 4008.11.10.00 |
Structure mismatch → Inspection/Rejection |
✅ 3. Special Cases Handling
| Case | Handling Advice |
|---|---|
| Mixed Shipments | If a container has both foam strips and O-rings, declare separately by HS Code. Do not lump them under one code. |
| Custom Shaped Seals | If the seal is not an O-ring but a custom gasket, check if it fits 4016.99.60.50 or 4016.93.50.10. Consult a customs broker. |
| Non-Natural Rubber | If the rubber is SBR, NBR, or Silicone, HS Codes will change completely. These rates are specific to Natural Rubber. |
| De Minimis Value | Even for small samples, if the total CIF value exceeds $800, it must be formally entered. However, tariffs still apply regardless of value. |
🌍 V. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Duty Rate (China Origin) | Certification Requirements | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 4008.11.50.00 / 4008.11.10.00 |
35.0% - 38.3% | FCC (if electronic adj), RoHS (if applicable) | Highest tariffs due to Section 301 + IEEPA. |
| 🇨🇳 China | 4008.11.00.00 |
5% - 10% | GB Standards | No additional tariffs. |
| 🇪🇺 EU | 4008.11.00.00 |
6.5% | REACH, RoHS | Moderate tariffs. No Section 301 equivalent. |
| 🇬🇧 UK | 4008.11.00.00 |
6.5% | UKCA, REACH | Similar to EU post-Brexit. |
| 🇯🇵 Japan | 4008.11.00.00 |
6.0% | JIS Standards | Low tariffs. |
📌 Conclusion:
- The US is the most expensive market for these products due to the combination of base tariffs and massive additional duties.
- For other markets, the total duty is significantly lower (6-10%).
- Strategy: If targeting the US, consider supply chain diversification (e.g., sourcing from Vietnam or Thailand) to potentially avoid IEEPA/301 tariffs, provided the product meets rules of origin.
📌 VI. Common Mistakes & Pitfall Guide (Lessons Learned)
❌ Mistake 1: Calling "Foam Strip" a "Rubber Seal"
👉 Consequence: Customs may classify it as 4016.93.50.10 (2.5% base) instead of 4008.11.10.00 (0% base). While base rate is lower, the additional tariffs are the same, but the discrepancy triggers audits.
❌ Mistake 2: Ignoring the "Foam" Definition
👉 Consequence: If the rubber is solid but flexible, it should not be classified under 4008 (Foam). It should be 4016.99.60.50 (2.5% base). Misdeclaring solid as foam can lead to fraud allegations.
❌ Mistake 3: Assuming "De Minimis" Applies
👉 Consequence: Many buyers think small shipments are duty-free. No. For China-origin rubber, all shipments are subject to tariffs, regardless of value. No de minimis exemption.
✅ Correct Practice:
"Natural Rubber Foam Strip, Closed-Cell, Cross-Section 5mm x 10mm, For Door Sealing, Model XYZ, Made in China"
🎯 VII. Conclusion: Professional Declaration, Save Time, Save Money!
🎯 Remember the Mantra:
🔹 "Foam is 4008, Seal is 4016. Base Rate Varies, Total Rate is 35%+. Check Origin, Avoid Penalty!"
🔹 "HS Code Dictates Duty, 25%+10% Add-Ons are Real. Declare Accurately, Avoid Delays!"
📌 Tips:
- If your product is not Natural Rubber (e.g., EPDM, Silicone), the HS codes and tariffs will be different.
- For US Imports, consider applying for an Advance Ruling if your product shape is unique.
- If shipping to the US, verify the latest IEEPA 122 Clause list as these can change.
📣 Immediate Action:
📞 Contact a Professional Customs Broker + Provide Product Photos + Apply for HS Code Advance Ruling
🚀 Ensure your Natural Rubber Foam Strips clear customs smoothly, efficiently, and cost-effectively!
✨ Professional Clearance Starts with Accurate Classification!
💼 Every Percent of Duty Counts!
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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。