橡胶抗氧化剂39
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 4002990000 | 35.0% | CN | US | Official Doc |
AI Analysis
🧪 Rubber Antioxidant 39 (6PPD) | Synthetic Rubber & Factice Classification Guide
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Compliance Strategy
📌 I. Product Definition & Classification: Understanding "Rubber Antioxidant 39"
Rubber Antioxidant 39, commonly known as 6PPD (N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine), is a critical chemical additive used in the rubber industry to prevent degradation from oxygen, ozone, and heat.
However, in international trade and customs classification, chemical additives like antioxidants are NOT classified under their chemical name alone. Instead, they are often classified based on the primary rubber products they are mixed with or the form in which they are imported, especially when mixed with synthetic rubber.
⚠️ Key Distinction:
- If imported as a pure chemical powder/granules for further processing → Usually falls under Chapter 29 (Organic Chemicals) (e.g., 2921.43 or 2922.49).
- If imported as pre-mixed with synthetic rubber in primary forms or sheets/strips → Falls under Chapter 40 (Rubber and Articles Thereof), specifically Heading 4002.
- ⚠️ Data Note: The provided<DATA>specifically classifies this item under 4002.99.00.00, which covers "Synthetic rubber and factice... in primary forms or in plates, sheets or strip... Other". This implies the shipment is likely a pre-mixed rubber compound or a factice/oil-derived rubber product containing the antioxidant, rather than pure 6PPD powder.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Match)
| HS Code | Product Description | Applicable Scenario | Contains Pure Chemical? |
|---|---|---|---|
4002.99.00.00 |
Synthetic rubber and factice derived from oils, in primary forms or in plates, sheets or strip; Mixtures of any product of heading 4001 with any product of this heading, in primary forms or in plates, sheets or strip: Other: Other | Pre-mixed rubber compounds, synthetic rubber sheets/strips containing antioxidants/fillers, factice products | ❌ No (It is a rubber product mixture, not pure chemical) |
🔍 Critical Warning:
- Do NOT misdeclare "Rubber Antioxidant 39 (6PPD)" as a pure chemical (e.g., 2921.43) if it is physically mixed with synthetic rubber or sold as a rubber sheet/compound.
- The provided data explicitly places it under 4002.99.00.00, which is a Chapter 40 heading (Rubber).
- If you are importing pure 6PPD powder, this classification is INCORRECT. You must re-evaluate your product form.
- For pre-mixed rubber compounds (where 6PPD is an additive within the rubber matrix), 4002.99.00.00 is the appropriate fallback for "Other" synthetic rubber mixtures.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Surcharges & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: November 10, 2025 (and onwards)
✅ HS Code:4002.99.00.00
🎯 1. 4002.99.00.00 —— Synthetic Rubber / Factice Mixtures (Other)
| Item | Content |
|---|---|
| Base Tariff Rate | 0.0% (ad valorem) |
| Section 301 Surcharge (USITC) | +25.0% |
| IEEPA Surcharge | Not explicitly listed in data (Note: Data only mentions "Base: 0.0%, Additional: 25.0%". IEEPA surcharges are often applied separately or merged in total tax calculations. Based on the data provided, total tax is 25.0%.) |
| Total Tax Rate | 25.0% |
| Tax Calculation | CIF Value × 25.0% |
| De Minimis Eligibility | ❌ Not Eligible (High tariff rate excludes de minimis exemptions) |
| Legal Basis Path | USITC:4002.99.00.00 → FOOTNOTE:Section301 → Total:25.0% |
📌 Explanation:
- Base Rate 0%: Synthetic rubber generally has a low base duty under USHTS.
- 25% Surcharge: This is the critical Section 301 tariff applied to most Chinese-origin rubber products and related intermediates.
- Total 25%: The provided data explicitly states a total tax of 25.0%. Ensure your customs broker does not double-apply IEEPA surcharges unless specifically required for your product origin and type.
- High Tariff Impact: Even though the base is 0%, the 25% surcharge significantly impacts cost.
🛠️ IV. Customs Clearance Practical Advice (Battle-Tested Pitfall Avoidance)
✅ 1. Required Documentation Checklist (Non-Negotiable)
| Document | Mandatory | Notes |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must detail: Rubber type (SBR, BR, etc.), filler content, antioxidant type (6PPD), physical form (sheet, strip, primary form) |
| ✅ Material Safety Data Sheet (MSDS) | ✔️ | Required for chemical safety compliance, especially if 6PPD is present |
| ✅ Commercial Invoice | ✔️ | Must clearly state: "Synthetic Rubber Compound containing Antioxidant 39", NOT just "Antioxidant 39" |
| ✅ Certificate of Origin (CO) | ✔️ | To confirm China origin for Section 301 application |
| ✅ Packing List | ✔️ | Detail weight, dimensions, and number of sheets/rolls |
| ✅ Import License (if applicable) | ✔️ | Check if any chemical import restrictions apply |
✅ 2. Declaration Strategy (Key Mnemonic)
🔥 "Form Defines Code, Mixture Defines Chapter, 6PPD is Additive, Not Product Itself!"
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Pre-mixed rubber sheets with 6PPD | 4002.99.00.00 - "Synthetic Rubber Sheets containing Antioxidant" |
Declare as "Chemical Antioxidant" → Risk of misclassification |
| Pure 6PPD Powder | 2921.43 or 2922.49 (Chapter 29) |
Declare as 4002.99.00.00 → REJECTED by CBP |
| Rubber Compounds (Masterbatches) | 4002.99.00.00 |
Declare as "Part of Machinery" → ERROR |
| Factice Derived from Oils | 4002.99.00.00 |
Misclassified as natural rubber (4001) → AUDIT RISK |
✅ 3. Special Case Handling
| Situation | Handling Advice |
|---|---|
| OEM Rubber Compounds | Provide customer contract + formula sheet to prove it's a "mixture" under 4002 |
| Mixed with Natural Rubber | If >50% synthetic, use 4002. If >50% natural, use 4001. Check ratio! |
| Import for R&D | Consider "Laboratory Sample" exemption if quantity is small, but ensure accurate HS |
| Anti-Dumping/Countervailing Duties (AD/CVD) | Check if specific synthetic rubber types (e.g., SBR) have AD/CVD orders. 4002.99.00.00 may be exempt, but verify |
🌍 V. Global Market Comparison for Rubber Products (2026)
| Country/Region | Recommended HS Code | Tariff Rate | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 4002.99.00.00 |
25.0% (Section 301) | None specific | High surcharge due to China origin |
| 🇨🇳 China | 4002.99.00.00 |
0% (Import Duty) | None | Low barrier for raw material import |
| 🇪🇺 EU | 4002.99 |
6.5% | REACH Registration | REACH compliance critical for chemicals/additives |
| 🇬🇧 UK | 4002.99 |
6.5% | UK REACH | Post-Brexit rules apply |
| 🇯🇵 Japan | 4002.99 |
6.0% | JIS Standards | Moderate tariff, strict quality checks |
📌 Conclusion:
- USA: The 25% surcharge makes cost control essential. Verify if any exclusions apply.
- EU/UK: REACH compliance is more critical than tariff. Ensure 6PPD is registered under REACH.
- Other Markets: Tariffs are lower, but chemical safety regulations (REACH, TSCA, etc.) are stringent.
📌 VI. Common Mistakes & Pitfall Avoidance (Lessons Learned)
❌ Mistake 1: Declaring "Rubber Antioxidant 39" as a pure chemical when it's a pre-mixed rubber compound
👉 Consequence: HS Code misclassification (2921 vs 4002), leading to 25% tariff exposure or penalties.
❌ Mistake 2: Ignoring the form of the product (sheet, strip, primary form)
👉 Consequence: CBP may reclassify if the product doesn't match "primary forms or sheets/strips" description.
❌ Mistake 3: Failing to provide MSDS for products containing 6PPD
👉 Consequence: Customs hold for chemical safety review, causing delays and storage fees.
❌ Mistake 4: Assuming "Antioxidant" = "Chemical Additive" → Chapter 29
👉 Consequence: If mixed with rubber, it belongs to Chapter 40. Form and composition dictate classification.
✅ Correct Declaration Example:
"Synthetic Rubber Compound Sheet, SBR Type, containing N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD) as antioxidant, 2mm thickness, 1000 rolls, Model XYZ"
🎯 VII. Conclusion: Professional Compliance Saves Costs!
🎯 Remember Mnemonic:
🔹 "Rubber Mix Goes to 4002, Pure Chemical to 2921"
🔹 "25% Surcharge is Real, Check Form, Check Content, Check Origin"
🔹 "6PPD is Additive, Not Product, Declare Mixture, Not Just Chemical"
📌 Pro Tip:
If your Rubber Antioxidant 39 is imported as pure powder, DO NOT use 4002.99.00.00. Instead, consult for 2921.43.00.00 or 2922.49.00.00 (Chapter 29), which may have different tariff treatments (though still subject to 25% Section 301).
Verify the physical form and composition with your supplier before shipment!
📣 Immediate Action:
📞 Contact your customs broker NOW with:
1. Product Photos (showing form: sheet, granules, powder?)
2. MSDS
3. Commercial Invoice draft
4. Formula/Composition Sheet
🚀 Ensure correct HS Code to avoid 25% surprise tariffs or customs holds!
✨ Professional Customs Clearance Starts with Accurate Classification!
💼 Your Cost Efficiency Depends on Precise Declaration!
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) — Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) — More specific grouping within the chapter
- Subheading (6 digits) — Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) — 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 — The standard duty rate applied to WTO members
- General rate — Applied to countries without trade agreements
- Trade remedy duties — 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.