Lubricant Demulsifier
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3824995500 | 38.7% | 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 |
| 3811290000 | 41.5% | CN | US | Official Doc |
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AI Analysis
🛢️ Lubricant Demulsifier (Hydraulic Oil Water Remover / Corrosion Inhibitor)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition & Classification: Do You Really Understand "Demulsifiers"?
Lubricant Demulsifiers are specialized chemical additives designed to separate water from lubricating oils (such as hydraulic oil, turbine oil, and transformer oil). In international trade, they fall under the category of chemical preparations, specifically mixtures that alter the physical or chemical properties of other substances.
Based on the provided data (<DATA>), there are five potential HS Code classifications depending on the specific chemical composition and application function of the demulsifier:
- Chemical Mixtures (General): For standard water-removing agents classified as halogenated hydrocarbon mixtures.
- Unspecified Chemical Preparations: For general water-removing agents not specified elsewhere.
- Fatty Acid Derivatives (Oleic Acid Dehydration Products): Specifically for products derived from fatty acids.
- Lubricant Additives (Anti-Corrosion): For demulsifiers that also function primarily as corrosion inhibitors within lubricant systems.
⚠️ Key Distinction Point:
- If the product is a general chemical mixture for removing water → 3824.99.55.00 or 3824.99.49.00
- If the product is specifically a fatty acid derivative (Oleic Acid) → 3824.99.41.40 or 3824.99.41.90
- If the product is marketed and functions as an anti-corrosion lubricant additive → 3811.29.00.00
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Material/Composition | Applicable Scenario |
|---|---|---|---|
3824.99.55.00 |
Hydraulic Oil Water Remover, Chemical Preparation | Chemical Mixture (Halogenated Hydrocarbon Mixtures) | General industrial hydraulic systems |
3824.99.49.00 |
Hydraulic Oil Water Remover, Chemical Industry Preparation | Chemical Mixture (Unnamed Chemical Products) | General purpose water removal |
3824.99.41.40 |
Oleic Acid Dehydration Product | Fatty Acid Ester or Mixture | Derived from fatty acids |
3824.99.41.90 |
Oleic Acid Dehydration Product | Animal/Plant Origin Fat Substance | Other fatty acid derivatives |
3811.29.00.00 |
Lubricant Anti-Corrosion Agent | Lubricant Additive (Corrosion Inhibitor) | Lubricant additives for machinery |
🔍 Important Reminder:
- Material Composition is Key: Customs will require the Technical Data Sheet (TDS) to determine if the active ingredient is a halogenated hydrocarbon, a fatty acid derivative, or a general chemical mix. - Function vs. Form: If the product is sold as a "Demulsifier" but its primary patented function is "Corrosion Inhibition," it might be argued for 3811.29.00.00. However, if it is primarily for water separation, 3824 series is more likely. - Misclassification Risk: Reporting a fatty acid derivative as a "general chemical mixture" may lead to reclassification by customs, resulting in penalty fees.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Surcharge, Policy Add-on)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: From November 10, 2025 (including subsequent imports)
🎯 1. 3824.99.55.00 —— Hydraulic Oil Water Remover (Halogenated Hydrocarbon Mixtures)
| Item | Content |
|---|---|
| Base Tariff | 3.7% (ad valorem) |
| Section 301 Surcharge | +25.0% |
| Section 122 Surcharge | +10.0% |
| Total Tax Rate | 38.7% |
| Tax Calculation | CIF Value × 38.7% |
| De Minimis Eligible? | ❌ No (deny_de_minimis) |
| Legal Basis Path | Section 301: 9903.88.01 → Section 122: 9903.01.24 → USITC: 3824.99.55.00 |
📌 Explanation:
- This classification is common for synthetic chemical demulsifiers. - The total rate of 38.7% is significant. Importers must account for this in cost calculations. - Section 122 refers to specific national security-related surcharges, while Section 301 is the standard trade war tariff.
🎯 2. 3824.99.49.00 —— Hydraulic Oil Water Remover (Unnamed Chemical Preparations)
| Item | Content |
|---|---|
| Base Tariff | 6.5% |
| Section 301 Surcharge | +25.0% |
| Section 122 Surcharge | +10.0% |
| Total Tax Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Eligible? | ❌ No |
| Legal Basis Path | Section 301: 9903.88.01 → Section 122: 9903.01.24 → USITC: 3824.99.49.00 |
📌 Note:
- This code applies if the product does not fit into more specific subheadings (like fatty acids). - Higher Base Tariff (6.5%) than code 3824.99.55.00, leading to a higher total tax (41.5%). - Use this only if the chemical composition is truly "unspecified" or mixed in a way that doesn't meet other definitions.
🎯 3. 3824.99.41.40 & 3824.99.41.90 —— Oleic Acid Dehydration Products (Fatty Acid Derivatives)
| Item | Content |
|---|---|
| Base Tariff | 4.6% |
| Section 301 Surcharge | +25.0% |
| Section 122 Surcharge | +10.0% |
| Total Tax Rate | 39.6% |
| Tax Calculation | CIF Value × 39.6% |
| De Minimis Eligible? | ❌ No |
| Legal Basis Path | Section 301: 9903.88.01 → Section 122: 9903.01.24 → USITC: 3824.99.41.40/90 |
📌 Note:
- These codes apply specifically to Oleic Acid Dehydration Products. - If your demulsifier is made from vegetable or animal fats (fatty acids), you must use these codes. - Base Tariff (4.6%) is lower than the general "unnamed" category, but the total tax (39.6%) is still high due to surcharges.
🎯 4. 3811.29.00.00 —— Lubricant Anti-Corrosion Agent
| Item | Content |
|---|---|
| Base Tariff | 6.5% |
| Section 301 Surcharge | +25.0% |
| Section 122 Surcharge | +10.0% |
| Total Tax Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Eligible? | ❌ No |
| Legal Basis Path | Section 301: 9903.88.01 → Section 122: 9903.01.24 → USITC: 3811.29.00.00 |
📌 Note:
- This code is for lubricant additives. If your product is sold as a "Demulsifier" but functions primarily as a corrosion inhibitor, this might apply. - However, 3811 is for "Preparations... for use in lubricants." If the product is only for water removal and not a general lubricant additive, 3824 is more accurate. - Misclassification Risk: High. Ensure the product's primary function aligns with "Corrosion Inhibition" for this code.
🛠️ IV. Customs Clearance Practical Advice (Battle-Tested Pitfall Guide)
✅ 1. Document Checklist (All Mandatory)
| Document | Required | Notes |
|---|---|---|
| ✅ Technical Data Sheet (TDS) | ✔️ | Must list chemical composition, CAS numbers, and pH value. Critical for determining HS Code (Halogenated vs. Fatty Acid). |
| ✅ Safety Data Sheet (SDS) | ✔️ | Required for hazardous material classification. |
| ✅ Certificate of Origin (CO) | ✔️ | To prove Chinese origin and apply correct tariffs. |
| ✅ Commercial Invoice | ✔️ | Must clearly state "Lubricant Demulsifier" or "Hydraulic Oil Water Remover." |
| ✅ Packing List | ✔️ | Detail net/gross weight and packaging type. |
| ✅ Third-Party Test Report | ✔️ | FDA/REACH compliance if applicable. |
✅ 2. Declaration Tips (Key Mantras)
🔥 "Composition Determines Code, Function Defines Category!"
| Situation | Correct Declaration | Wrong Practice |
|---|---|---|
| Product is a Halogenated Hydrocarbon Mix | 3824.99.55.00 |
Misdeclare as "General Chemical" → 41.5% |
| Product is Oleic Acid Based | 3824.99.41.40 |
Misdeclare as "General Chemical" → 41.5% |
| Product is Corrosion Inhibitor | 3811.29.00.00 |
Misdeclare as "Water Remover" → 38.7% |
| Product is Unspecified Chemical Mix | 3824.99.49.00 |
Overly vague description → Audit Risk |
✅ 3. Special Case Handling
| Situation | Handling Advice |
|---|---|
| OEM/Private Label | Provide client order + technical specs. Avoid generic names if specific composition is known. |
| Mixed Packaging | If sold as "Demulsifier + Anti-Corrosion," ensure the primary function is declared. |
| Chemical Composition Change | If formula changes (e.g., from fatty acid to synthetic), update HS Code immediately. |
| Customs Audit | Have SDS and TDS ready. Customs may request chemical analysis if classification is disputed. |
🌍 V. Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff Rate | Certification Requirement | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3824.99.55.00 |
38.7% (CN Origin) | REACH (if exported to EU first) | High tariffs due to Section 301 & 122 |
| 🇨🇳 China | 3824.99.55.00 |
~7.5% | CCC (if applicable) | Lower base tariffs, no surcharges |
| 🇪🇺 EU | 3824.99.55.00 |
0% (if eligible) | REACH + CLP | No Section 301/122 tariffs |
| 🇮🇳 India | 3824.99.55.00 |
~10-15% | BIS Certification | Check for anti-dumping duties |
| 🇯🇵 Japan | 3824.99.55.00 |
0-5% | PSE (if electrical) | No major surcharges |
📌 Conclusion:
- USA is the most challenging market due to high surcharges (38.7%-41.5%). - EU and Japan offer significantly lower tariff barriers. - Cost Optimization: Consider sourcing from non-China origins if possible, or negotiate pricing to absorb the US tariff.
📌 VI. Common Mistakes & Pitfall Guide (Blood & Tears Lessons)
❌ Mistake 1: Reporting "Hydraulic Oil Additive" without specifying "Demulsifier"
👉 Consequence: Customs may classify under a different, higher-tariff code.
❌ Mistake 2: Ignoring Chemical Composition (Halogenated vs. Fatty Acid)
👉 Consequence: Re-classification by customs, leading to delayed clearance + fines.
❌ Mistake 3: Using "De Minimis" for high-value chemical shipments
👉 Consequence: Denied entry. Chemical preparations are not eligible for de minimis exemption under Section 122/301.
❌ Mistake 4: Incorrect SDS Declaration
👉 Consequence: Hazmat shipment rejection, storage fees, or return.
✅ Correct Approach:
"Lubricant Demulsifier, Chemical Mixture, Halogenated Hydrocarbon Based, for Hydraulic Oil Water Removal, Model XYZ, SDS Available"
🎯 VII. Conclusion: Professional Declaration, Save Time & Money!
🎯 Remember the Mantra:
🔹 "Chemical Composition Defines HS, Function Defines Code."
🔹 "Section 301 + 122 = ~38-41% Tax. Plan Ahead!"
🔹 "TDS & SDS are Your Best Friends."
📌 Pro Tip:
If your demulsifier is originally from Vietnam, Mexico, or Thailand, you may be eligible for IEEPA Exemptions or lower tariffs.
Apply for Advance Ruling (Pre-classification) with US Customs (CBP) to avoid surprises at the port.
📣 Immediate Action:
📞 Contact a Professional Customs Broker + Provide TDS/SDS + Apply for HS Code Pre-classification
🚀 Ensure your Lubricant Demulsifier clears customs smoothly, efficiently, and cost-effectively!
✨ Professional Clearance Starts with Accurate Classification!
💼 Every Dollar of Cost is Worth Calculating Precisely!
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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.