Modified Aromatic Amine Stabilizer
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 3824401000 | 41.5% | CN | US | 官方文档 |
| 3824992900 | 41.5% | CN | US | 官方文档 |
| 29214990 | 0.0% | CN | US | 官方文档 |
| 38089100 | 0.0% | CN | US | 官方文档 |
商品图片
AI分析
🧪 Modified Aromatic Amine Stabilizers (Industrial Chemical Additives)
🌐 HS Code Reference & Customs Clearance Guide | 2024/2025 Latest Tariff Analysis | Professional Compliance Strategy
📌 I. Product Definition & Classification: What Exactly Are "Modified Aromatic Amine Stabilizers"?
Modified Aromatic Amine Stabilizers are specialized chemical additives primarily used in the plastics, polymers, and rubber industries. Their core function is to prevent thermal degradation, oxidation, and discoloration during processing and use. Unlike simple raw aromatic amines (which fall under Chapter 29), these products are often preparations, mixtures, or derivatives specifically formulated for industrial stabilization purposes, moving them into Chapter 38.
In international trade, the key distinction lies in the form and application: * Raw Chemicals: Pure aromatic amines → Classified under 2921.49.90 (Chapter 29: Organic Chemicals). * Formulated Additives: Mixtures, preparations, or specific derivatives used as additives for plastics/polymers → Classified under 3808.91.00 or 3824 (Chapter 38: Miscellaneous Chemical Products).
⚠️ Key Classification Point:
- If the product is a pure chemical substance (unmodified or minimally modified for chemical identity, not function) → 2921.49.90
- If it is a preparation/mixture containing stabilizers intended for use in polymers/plastics → 3808.91.00
- If it is a specialized binder or additive containing >5% aromatic substances for construction materials (cement/concrete) → 3824.40.10.00 or 3824.99.29.00
📦 II. HS Code Classification Details (Latest Tariff Schedule)
| HS Code | Product Description | Application Scenario | Chemical Nature |
|---|---|---|---|
2921.49.90 |
Other aromatic amines and their derivatives (not elsewhere specified) | Raw chemical intermediates, pure stabilizer agents before formulation | ✅ Pure Organic Compound |
3808.91.00 |
Chemical products and preparations... stabilizers and additives for plastics or rubber | Formulated plastic stabilizers, polymer additives, industrial mixtures | ✅ Preparation/Mixture |
3824.40.10.00 |
Prepared additives for cements, mortars, concretes (>5% aromatic substances) | Construction chemicals, concrete stabilizers with aromatic content | ✅ Construction Additive |
3824.99.29.00 |
Other mixtures containing >5% aromatic substances (not elsewhere specified) | General industrial mixtures with high aromatic content, unspecified uses | ✅ General Mixture |
🔍 Critical Reminder:
- Do not confuse Chapter 29 with Chapter 38. Chapter 29 is for chemical entities; Chapter 38 is for formulated preparations.
- If your "Modified Aromatic Amine Stabilizer" is sold as a preparation for plastics, 3808.91.00 is the most likely correct code.
- If it is used in cement/concrete, it falls under 3824.
- Tax Liability Varies Drastically: Misclassification can lead to 31.5% vs 0% duty!
💰 III. 2024/2025 Latest Tariff Rate Breakdown (Detailed Tax Clauses)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Time: Current rates as per USITC DataWeb & Section 301/IEEPA lists
🎯 1. 2921.49.90 — Other Aromatic Amines & Derivatives (Raw Chemical)
| Item | Content |
|---|---|
| Base Tariff | Failed to retrieve tax information (Please verify current HTSUS) |
| Total Tax | Error (Retrieval Failure) |
| Key Insight | ⚠️ High Risk Zone: Raw amines are often subject to heavy scrutiny. While the base rate may be low, they are frequently targeted by anti-dumping duties or Section 301 tariffs if not properly documented. Do not assume 0%. |
📌 Explanation:
- This code covers pure chemical forms.
- Tax Retrieval Error: The system failed to fetch specific data. This is common for niche chemical codes that may have special trade remedies (AD/CVD) applied.
- Action Required: You MUST check for active Anti-Dumping Duties (AD) or Countervailing Duties (CVD) via the Department of Commerce (DOC).
🎯 2. 3808.91.00 — Stabilizers/Additives for Plastics or Rubber (Formulated Product)
| Item | Content |
|---|---|
| Base Tariff | Failed to retrieve tax information (Please verify current HTSUS) |
| Total Tax | Error (Retrieval Failure) |
| Key Insight | ⚠️ High Risk Zone: Similar to raw chemicals, this code may be subject to Section 301 tariffs (typically +25%) or IEEPA tariffs if classified as a chemical preparation from China. Do not assume exemption. |
📌 Explanation:
- This is the most likely code for plastic stabilizers.
- Tax Retrieval Error: Indicates a gap in the public dataset or a dynamic rate.
- Standard Practice: Many chemical preparations from China face a 25% Section 301 tariff on top of the base rate. Always verify with a licensed customs broker.
🎯 3. 3824.40.10.00 — Prepared Additives for Cements (Aromatic Content >5%)
| Item | Content |
|---|---|
| Base Tariff | 6.5% (ad valorem) |
| Additional Tariff (Section 301/IEEPA) | +25.0% |
| Total Tax | 31.5% |
| Tax Calculation | CIF Value × 31.5% |
| De Minimis Eligibility | ❌ Not Eligible (Deny de minimis) |
| Legal Basis | USITC:3824.40.10.00 + FOOTNOTE:Section 301 |
📌 Explanation:
- 31.5% Total Duty: This is a high tariff scenario.
- Why?: The base rate is 6.5%, but additional tariffs (likely Section 301) add 25%.
- Critical for Construction Imports: If your stabilizer is used in concrete/cement, you must pay this significant duty. No de minimis exemption applies for commercial shipments.
🎯 4. 3824.99.29.00 — Other Mixtures (>5% Aromatic Substances)
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Additional Tariff | 0.0% |
| Total Tax | 0.0% |
| Tax Calculation | Duty-Free |
| De Minimis Eligibility | ✅ Potentially Eligible (if under $800, subject to current policy) |
| Legal Basis | USITC:3824.99.29.00 |
📌 Explanation:
- 0% Duty: This is the most favorable code if applicable.
- Condition: The product must be a "mixture" not elsewhere specified, with >5% aromatic content, but not for cements/concretes or specific plastic stabilizers (which go to 3808).
- Risk: Customs may reclassify this as3808.91.00(Plastic Stabilizer) if you can prove its primary use is for plastics, potentially triggering the 25% tariff.
🛠️ IV. Customs Clearance Practical Advice (Real-World Pitfall Guide)
✅ 1. Preparation Checklist (Non-Negotiable)
| Document | Required | Notes |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must clearly state: "Stabilizer for Plastics" OR "Additive for Concrete" |
| ✅ MSDS/SDS (Safety Data Sheet) | ✔️ | Confirm chemical composition. If >5% aromatic amines, note it explicitly. |
| ✅ Certificate of Analysis (COA) | ✔️ | Proves the percentage of aromatic content (critical for 3824 codes) |
| ✅ Commercial Invoice | ✔️ | Describe as "Modified Aromatic Amine Stabilizer for Polymer Stabilization" |
| ✅ Statement of Use | ✔️ | CRITICAL: State exactly where it is used (e.g., "Used in PVC pipe manufacturing" vs. "Used in cement mixing") |
✅ 2. Declaration Strategy (Key Mnemonics)
🔥 “Use Determines Code, Aromatic % Defines Rate!”
| Scenario | Correct HS Code | Tax Rate | Reason |
|---|---|---|---|
| Raw Chemical (Pure Amine) | 2921.49.90 |
⚠️ Check AD/CVD | It's a chemical, not a preparation. High risk of trade remedies. |
| Plastic Stabilizer (Formulated) | 3808.91.00 |
⚠️ Likely 25%+ | Primary use is for plastics/rubber. Section 301 likely applies. |
| Concrete Additive (>5% Aromatic) | 3824.40.10.00 |
31.5% | Explicitly for cement/concrete. Base 6.5% + 25% tariff. |
| General Mixture (>5% Aromatic) | 3824.99.29.00 |
0.0% | Lowest Duty. But must NOT be primarily for plastics or concrete. |
✅ 3. Special Handling & Risk Mitigation
| Situation | Recommendation |
|---|---|
| Ambiguous Use | If the product can be used for both plastics and concrete, declare as 3824.99.29.00 (0% duty) only if it is genuinely a general-purpose mixture. Do not lie. If primary use is plastics, declare 3808.91.00. |
| Aromatic Content <5% | If aromatic content is <5%, 3824 codes may not apply. Consider 3824.99.99 or other 38xx codes, which may have different tax rates. |
| OEM Custom Formulation | Provide Formulation Sheet to prove chemical identity. Customs may challenge "modified" status. |
| Section 301 Exemption | Check if your product is on the USITC Exclusion List for plastics additives. Some 3808 codes have been excluded in the past. |
🌍 V. Global Market Comparison (2024/2025)
| Country/Region | Recommended HS Code | Estimated Duty | Key Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3808.91.00 or 3824.99.29.00 |
0% - 31.5% | TSCA Compliance | High Risk: Section 301 tariffs apply to most chemicals from China. |
| 🇨🇳 China (Import) | 2921.49.90 or 3808.91.00 |
5% - 10% | GB Standards | Lower tariffs, but strict environmental regulations. |
| 🇪🇺 EU | 3824.99 or 2921.49 |
0% - 6% | REACH Registration | REACH is critical. Must register substances if >1 ton/year. |
| 🇬🇧 UK | 3824.99 |
0% - 5% | UK REACH | Post-Brexit regulations mirror EU but require separate registration. |
📌 Conclusion:
- USA: Focus on Section 301 exclusions and accurate use declaration.
- EU/UK: Focus on REACH/UK REACH compliance. Without registration, goods will be blocked.
- China: Lower tariffs, but environmental inspections are strict.
📌 VI. Common Mistakes & Pitfalls (Lessons Learned)
❌ Mistake 1: Declaring a plastic stabilizer as 3824.99.29.00 (0% duty) when it is primarily for plastics.
👉 Consequence: Customs reclassification → Back taxes + 25% penalty + Potential fraud charges.
❌ Mistake 2: Ignoring Aromatic Content >5% for 3824 codes.
👉 Consequence: If content is <5%, 3824.40.10.00 is invalid → Incorrect duty calculation.
❌ Mistake 3: Using "Chemical Intermediate" for a formulated preparation.
👉 Consequence: Misclassification under 2921 → Potential AD/CVD duties apply, which are often higher than standard tariffs.
✅ Correct Approach:
"Modified Aromatic Amine Stabilizer (Preparation), for Use in PVC Polymer Stabilization, Containing 8% Aromatic Amines by Weight. MSDS Attached. TSCA Compliant."
🎯 VII. Conclusion: Precision in Classification Saves Money!
🎯 Remember the Mnemonic:
🔹 "Plastic Stabilizer? → 3808.91.00 (Likely 25%+)"
🔹 "Concrete Additive? → 3824.40.10.00 (31.5% Total)"
🔹 "General Mixture? → 3824.99.29.00 (0% Duty)"
🔹 "Raw Chemical? → 2921.49.90 (Check AD/CVD!)"
📌 Pro Tip:
If you are shipping to the USA, always check the USTR Exclusion List for plastic stabilizers. Some 3808 codes may have been excluded from Section 301 tariffs. Also, ensure your SDS clearly states the chemical composition to avoid customs disputes.
📣 Immediate Action:
📞 Consult a licensed customs broker for a Binding Ruling if your product's use is ambiguous.
🚀 Save Cost: Declare correctly to avoid penalties and seize goods.
📄 Documentation: Keep Formulation Sheets and Usage Statements ready for every shipment.
✨ Professional Customs Clearance Starts with Accurate Classification!
💼 Every percentage point of duty matters—protect your profit margin!
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