汽油抗氧化剂
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3811190000 | 41.5% | CN | US | Official Doc |
| 3824992900 | 41.5% | CN | US | Official Doc |
| 3824994900 | 41.5% | CN | US | Official Doc |
| 3824994140 | 39.6% | CN | US | Official Doc |
| 3824994190 | 39.6% | CN | US | Official Doc |
AI Analysis
🛢️ Gasoline Oxidation Inhibitors (Gasoline Antioxidants)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition & Classification: Do You Really Understand "Gasoline Antioxidants"?
Gasoline oxidation inhibitors are critical chemical additives used in the fuel industry to prevent the degradation of gasoline during storage and transportation. They work by neutralizing free radicals, thereby slowing down the formation of gums and sediments. In international trade, these products are primarily categorized under Chapter 38 (Miscellaneous Chemical Products), specifically focusing on their role as fuel additives or chemical preparations.
The classification hinges on the specific chemical composition: * General Hydrocarbon-based Inhibitors: Classified as chemical preparations for gasoline. * Fatty Acid Esters (e.g., Oleic Acid Derivatives): Classified specifically as mixtures of fatty acid esters or chemical products derived from animal/vegetable fats.
⚠️ Key Distinction: - If the product is a generic hydrocarbon-based mixture designed to inhibit oxidation in gasoline → It falls under 3811.19.00.00 or 3824.99 subheadings. - If the product is specifically an Oleic Acid Antioxidant (derived from fatty acids) → It falls under the specific 3824.99.41.xx subheadings for fatty acid esters.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Cross-Reference)
| HS Code | Product Description | Application Scenario | Chemical Nature |
|---|---|---|---|
3811.19.00.00 |
Gasoline oxidation inhibitors categorized under mineral oil/gasoline additives; fits the definition of anti-knock agents, oxidation inhibitors, and other blending additives. | General gasoline blending, fuel stations, petrochemical refining. | Mineral oil/Gasoline additive |
3824.99.29.00 |
Gasoline oxidation inhibitors categorized as chemical preparations; fits the material and usage definition of other chemical products and preparations. | Industrial chemical blending, specialized fuel formulations. | Other chemical preparation |
3824.99.49.00 |
Chemical products and preparations related to the chemical industry; main components are hydrocarbons or related organic compounds. | Hydrocarbon-based antioxidant formulations. | Hydrocarbon/Organic compound |
3824.99.41.40 |
Oleic Acid Antioxidants: Mixtures of fatty acid esters or chemical products containing fatty acid components, fitting the material characteristics of fatty acid ester mixtures. | Specific fatty-acid-derived fuel treatments. | Fatty Acid Ester Mixture |
3824.99.41.90 |
Oleic Acid Antioxidants: Fatty substances of animal or vegetable origin; used as antioxidants, fitting the definition of chemical products and preparations related to the chemical industry. | Bio-based or natural-source antioxidant additives. | Animal/Vegetable Fatty Substance |
🔍 Key Reminder: - Products labeled as "Oleic Acid Antioxidant" must be classified under 3824.99.41.x0, NOT the general gasoline additive codes. - General "Gasoline Oxidation Inhibitors" without specific fatty acid derivation typically fall under 3811.19.00.00 or 3824.99. - Misclassification between "Chemical Preparation" and "Fatty Acid Ester" can lead to significant duty discrepancies and customs delays.
💰 III. 2026 Latest Tariff Rate Details (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. 3811.19.00.00 —— Gasoline Oxidation Inhibitors (Mineral Oil/Gasoline Additive Category)
| Item | Content |
|---|---|
| Base Tariff Rate | 6.5% |
| USITC Surtax (Section 301) | +25% |
| IEEPA Surtax (Section 122) | +10% |
| Total Effective Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption Eligible? | ❌ No (High duty burden prohibits de minimis clearance) |
| Legal Basis Path | Base Tariff: 6.5% → Section 301: 25.0% → IEEPA Sec 122: 10% |
📌 Explanation: - The 6.5% base rate applies to miscellaneous chemical products/additives not elsewhere specified. - The 25% surtax is imposed under Section 301 of the Trade Act of 1974 (Targeting Chinese Imports). - The 10% surtax is imposed under IEEPA Section 122 (often related to national emergency powers or specific trade remedies effective from late 2025). - Total 41.5% is a substantial cost factor. Importers must budget accordingly.
🎯 2. 3824.99.29.00 & 3824.99.49.00 —— Chemical Preparations (General)
| Item | Content |
|---|---|
| Base Tariff Rate | 6.5% |
| USITC Surtax (Section 301) | +25% |
| IEEPA Surtax (Section 122) | +10% |
| Total Effective Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption Eligible? | ❌ No |
| Legal Basis Path | Base Tariff: 6.5% → Section 301: 25.0% → IEEPA Sec 122: 10% |
📌 Note: - These codes represent the "catch-all" for chemical preparations. - The tariff structure is identical to the gasoline additive code due to the origin-based surtaxes. - Ensure the Product Description clearly states "Chemical Preparation" to avoid ambiguity with food or pharmaceutical grades.
🎯 3. 3824.99.41.40 & 3824.99.41.90 —— Oleic Acid Antioxidants (Fatty Acid Esters)
| Item | Content |
|---|---|
| Base Tariff Rate | 4.6% |
| USITC Surtax (Section 301) | +25% |
| IEEPA Surtax (Section 122) | +10% |
| Total Effective Rate | 39.6% |
| Tax Calculation | CIF Value × 39.6% |
| De Minimis Exemption Eligible? | ❌ No |
| Legal Basis Path | Base Tariff: 4.6% → Section 301: 25.0% → IEEPA Sec 122: 10% |
📌 Critical Advantage: - The Base Tariff (4.6%) is lower than the general chemical code (6.5%). - However, the Surtaxes (35% total) remain the same. - Total Savings: 1.9% compared to general codes. - Requirement: The product MUST be chemically verified as containing fatty acid esters (e.g., Oleic Acid derivatives) to qualify for this lower base rate. Providing a Certificate of Analysis (COA) is crucial.
🛠️ IV. Customs Clearance Practical Advice (Real-World Pitfall Avoidance Guide)
✅ 1. Preparation Checklist (Missing Items = Delays)
| Document | Mandatory? | Explanation |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must detail chemical composition (e.g., % Oleic Acid, % Hydrocarbons). |
| ✅ Certificate of Analysis (COA) | ✔️ | Crucial for proving if it's a "Fatty Acid Ester" (for 3824.99.41.x0) or "General Chemical". |
| ✅ Safety Data Sheet (SDS) | ✔️ | Required for hazardous material classification. Shows flammability and chemical hazards. |
| ✅ Commercial Invoice | ✔️ | Must clearly state "Gasoline Oxidation Inhibitor" or "Oleic Acid Antioxidant". |
| ✅ Packing List | ✔️ | Details net/gross weight, packaging type. |
| ✅ Statement of Composition | ✔️ | Confirms no banned substances or restricted organic compounds. |
✅ 2. Declaration Tips (Key Mantra)
🔥 "Exact Name, Exact Formula, Avoid 'Generic' Terms!"
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Oleic Acid Based | "Oleic Acid Antioxidant, Fatty Acid Ester Mixture, CAS No. [XXX]" |
"Gasoline Additive" → Risk of re-classification to 3811/3824.99 higher base rate. |
| Hydrocarbon Based | "Gasoline Oxidation Inhibitor, Hydrocarbon Blend, for Fuel Stabilization" |
"Chemical Product" → Too vague, may trigger inspection. |
| Generic Mixture | "Chemical Preparation, Oil Additive, Contains Esters and Hydrocarbons" |
"Anti-Knock Agent" → If not primarily for octane, this is a classification error. |
📌 Note: - If the product is a blend of fatty acids and hydrocarbons, customs may still classify it under 3824.99.41.xx if fatty acids are a significant component, or under 3824.99.29/49 if hydrocarbons dominate. Provide COA!
✅ 3. Special Circumstances Handling
| Situation | Handling Advice |
|---|---|
| Customs Audit on Chemical Nature | Provide Third-Party Lab Test Reports proving the presence of fatty acid esters (for 3824.99.41) or hydrocarbons. |
| Mixed Shipments | Do not mix "Oleic Acid Antioxidants" with "General Fuel Additives" in one BL unless declared separately. |
| Origin Declaration | Ensure the Certificate of Origin matches the HS Code classification. If classified as Fatty Acid, ensure raw materials origin supports it. |
| IEEPA Section 122 Compliance | Verify if your product is on the specific list covered by the 10% IEEPA tax. Most chemical additives from China are included. |
🌍 V. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Duty Rate (China Origin) | Certification Requirements | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3824.99.41.40 / 3811.19.00 |
39.6% - 41.5% | SDS, COA, CBP Ruling | High surtaxes apply. Pre-ruling recommended. |
| 🇨🇳 China | 3824.99.41.40 / 3811.19.00 |
~6.5% - 13% (Export Duty) | N/A | Low export tax, but focus on import duties in destination. |
| 🇪🇺 EU | 3824.99 |
~6.5% + VAT | REACH Registration | No Section 301/122 equivalent, but REACH compliance is strict. |
| 🇬🇧 UK | 3824.99 |
~6.5% | UK REACH | Post-Brexit regulations apply. |
📌 Conclusion: - The USA is the most costly market for these chemicals due to the 35% combined surtaxes. - EU/UK offer lower duty rates but have strict chemical registration (REACH) requirements, which can be a time barrier. - Optimization Strategy: If exporting to the US, ensure you are classified under 3824.99.41.x0 (39.6%) rather than 3811.19.00 (41.5%) if the product contains fatty acids. A 1.9% saving adds up on large volumes.
📌 VI. Common Errors & Pitfall Guide (Lessons Learned)
❌ Error 1: Declaring "Oleic Acid Antioxidant" as "General Gasoline Additive" (3811.19.00)
👉 Consequence: Overpayment of 1.9% base duty.
👉 Fix: Use 3824.99.41.40.
❌ Error 2: Failing to provide a COA (Certificate of Analysis) for Fatty Acid products
👉 Consequence: Customs reclassifies to "General Chemical Preparation" (3824.99.29) because they cannot verify the fatty acid content. Base rate jumps from 4.6% to 6.5%.
👉 Fix: Always attach a lab-tested COA showing fatty acid content.
❌ Error 3: Ignoring Section 122 IEEPA Tax 👉 Consequence: Under-declaration of tax. The 10% IEEPA tax is mandatory for many Chinese chemical imports. 👉 Fix: Include the 10% in your cost model. Do not assume it's waived.
❌ Error 4: Using "Antioxidant" without specifying "Gasoline/Fuel" context
👉 Consequence: Customs may confuse it with food or plastic antioxidants (3824.99 vs 3824.60).
👉 Fix: Explicitly state "For Use in Gasoline/Fuel" on the invoice.
✅ Correct Practice:
"Oleic Acid Antioxidant, Chemical Preparation, Fatty Acid Ester Mixture, CAS No. XXX-XX-X, For Use in Gasoline Stabilization, Country of Origin: China"
🎯 VII. Conclusion: Precision Classification Saves Money!
🎯 Remember the Mantra:
🔹 "Fatty Acid? Use 41.x0! General? Use 29/49! Base 4.6% vs 6.5% Matters!" 🔹 "Don't forget the 35% Surtax! 25% Sec 301 + 10% Sec 122 = High Cost!"
📌 Pro Tip: If your Oleic Acid Antioxidant is sourced from Vietnam, Mexico, or Thailand, you may be eligible for IEEPA/Section 301 Exemptions or lower tariffs under FTAs. Recommend applying for a Pre-Ruling (Advance Ruling) with US CBP to confirm the HS Code and duty rate before shipping.
📣 Immediate Action:
📞 Contact your customs broker + Provide COA + Request HS Code Pre-Ruling 🚀 Clear customs smoothly, control costs, and maximize profit margins!
✨ Professional Clearance Starts with Accurate Classification! 💼 Every cent of your duty cost should be calculated precisely!
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.