Hydraulic Transmission Special Fluid
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3824994900 | 41.5% | CN | US | Official Doc |
| 3824995500 | 38.7% | CN | US | Official Doc |
| 3402905030 | 38.7% | CN | US | Official Doc |
| 3402901000 | 38.8% | CN | US | Official Doc |
| 3810905000 | 40.0% | CN | US | Official Doc |
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π’οΈ Hydraulic Transmission Special Fluid
π HS Code Reference & Clearance Guide | 2026 Latest Tariff Analysis | Professional Customs Strategy
π I. Product Definition & Classification: What Exactly Is "Hydraulic Fluid"?
Hydraulic transmission special fluids are essential industrial lubricants and power transmission media used in machinery, heavy equipment, and industrial systems. In international trade, these fluids are classified based on their chemical composition and primary function.
The key distinction lies in whether the fluid is categorized as:
- Chemical Preparations (Unspecified): General-purpose chemical liquids without specific halogenated properties.
- Halogenated Hydrocarbon Mixtures: Fluids containing specific halogenated compounds.
- Cleaning Preparations: Fluids designed for cleaning hydraulic systems rather than transmitting power.
β οΈ Critical Distinction:
- If the fluid is a general chemical mixture not specifically defined elsewhere β 3824.99.49.00
- If the fluid contains halogenated hydrocarbons β 3824.99.55.00
- If the fluid is used primarily for cleaning hydraulic systems (not transmission) β 3402.90.50.30 / 3402.90.10.00 / 3810.90.50.00
π¦ II. HS Code Classification Details (2026 Latest Tariff Authority)
| HS Code | Product Description | Application Scenario | Primary Function |
|---|---|---|---|
3824.99.49.00 |
Chemical preparations, other (unspecified chemical products & preparations) | General hydraulic fluids, non-halogenated | Power transmission & lubrication |
3824.99.55.00 |
Halogenated hydrocarbon mixtures, other | Hydraulic fluids with halogenated components | Power transmission & lubrication (halogenated) |
3402.90.50.30 |
Cleaning preparations, other (for hydraulic systems) | Hydraulic system cleaners | Cleaning & maintenance (not transmission) |
3402.90.10.00 |
Synthetic detergents & cleaning preparations containing surfactants | Hydraulic system cleaners with surfactants | Cleaning & maintenance (surfactant-based) |
3810.90.50.00 |
Chemical preparations for use in metal treatment (auxiliary preparations) | Hydraulic system cleaners (chemical solvent-based) | Cleaning & maintenance (solvent-based) |
π Key Reminder:
- Fluids for power transmission must be classified under 3824 unless they are specifically defined as cleaning agents.
- Fluids for cleaning hydraulic systems must be classified under 3402 or 3810, depending on composition.
- Misclassification risks: Declaring a cleaning fluid as a transmission fluid (or vice versa) can lead to severe tariff penalties and customs delays.
π° III. 2026 Latest Tariff Rate Breakdown (Including Surcharges & Policy Add-ons)
β Applicable Country: United States (US)
β Origin: China (CN)
β Effective Date: November 10, 2025 (and subsequent imports)
π― 1. 3824.99.49.00 ββ Chemical Preparations (Unspecified)
| Item | Content |
|---|---|
| Base Tariff | 6.5% (ad valorem) |
| Section 301 Surcharge | +25.0% |
| IEEPA Surcharge (Section 122) | +10.0% |
| Total Tariff | 41.5% |
| Tax Calculation | CIF Value Γ 41.5% |
| De Minimis Exemption Available? | β No (deny_de_minimis) |
| Legal Basis Path | USITC:3824.99.49.00 β Section 301: 25% β IEEPA:122: 10% |
π Explanation:
- The 6.5% base tariff applies to unspecified chemical preparations.
- The 25% Section 301 surcharge is applied to Chinese-origin chemical products.
- The 10% IEEPA surcharge (Section 122) is a further penalty on Chinese imports.
- Total 41.5% is a very high tariff, requiring careful cost planning.
π― 2. 3824.99.55.00 ββ Halogenated Hydrocarbon Mixtures
| Item | Content |
|---|---|
| Base Tariff | 3.7% (ad valorem) |
| Section 301 Surcharge | +25.0% |
| IEEPA Surcharge (Section 122) | +10.0% |
| Total Tariff | 38.7% |
| Tax Calculation | CIF Value Γ 38.7% |
| De Minimis Exemption Available? | β No (deny_de_minimis) |
| Legal Basis Path | USITC:3824.99.55.00 β Section 301: 25% β IEEPA:122: 10% |
π Note:
- Halogenated fluids have a lower base tariff (3.7%) but still face the same surcharges.
- Total 38.7% is slightly lower than non-halogenated fluids but still extremely high.
π― 3. 3402.90.50.30 ββ Cleaning Preparations (Other)
| Item | Content |
|---|---|
| Base Tariff | 3.7% (ad valorem) |
| Section 301 Surcharge | +25.0% |
| IEEPA Surcharge (Section 122) | +10.0% |
| Total Tariff | 38.7% |
| Tax Calculation | CIF Value Γ 38.7% |
| De Minimis Exemption Available? | β No (deny_de_minimis) |
| Legal Basis Path | USITC:3402.90.50.30 β Section 301: 25% β IEEPA:122: 10% |
π Important:
- This classification is for cleaning fluids, not transmission fluids.
- Misdeclaring a transmission fluid as a cleaning fluid to reduce tariffs is illegal and risky.
π― 4. 3402.90.10.00 ββ Synthetic Detergents & Cleaning Preparations
| Item | Content |
|---|---|
| Base Tariff | 3.8% (ad valorem) |
| Section 301 Surcharge | +25.0% |
| IEEPA Surcharge (Section 122) | +10.0% |
| Total Tariff | 38.8% |
| Tax Calculation | CIF Value Γ 38.8% |
| De Minimis Exemption Available? | β No (deny_de_minimis) |
| Legal Basis Path | USITC:3402.90.10.00 β Section 301: 25% β IEEPA:122: 10% |
π Note:
- Synthetic detergents with surfactants are classified here.
- Total 38.8% is similar to other cleaning fluids.
π― 5. 3810.90.50.00 ββ Chemical Preparations for Metal Treatment
| Item | Content |
|---|---|
| Base Tariff | 5.0% (ad valorem) |
| Section 301 Surcharge | +25.0% |
| IEEPA Surcharge (Section 122) | +10.0% |
| Total Tariff | 40.0% |
| Tax Calculation | CIF Value Γ 40.0% |
| De Minimis Exemption Available? | β No (deny_de_minimis) |
| Legal Basis Path | USITC:3810.90.50.00 β Section 301: 25% β IEEPA:122: 10% |
π Important:
- This classification is for chemical solvents or cleaning liquids used in metal treatment.
- Total 40.0% is higher than other cleaning fluids due to the higher base tariff.
π οΈ IV. Clearance Practical Advice (Field Pitfall Avoidance Guide)
β 1. Preparation Checklist (All Documents Required)
| Document | Mandatory | Explanation |
|---|---|---|
| β Product Specification Sheet | βοΈ | Must include chemical composition, viscosity, flash point, and intended use (transmission vs. cleaning). |
| β Safety Data Sheet (SDS) | βοΈ | Required for customs to verify chemical properties and hazard classification. |
| β Product Photographs (with Label) | βοΈ | Clear labels showing "Hydraulic Fluid" or "Hydraulic Cleaner" and chemical ingredients. |
| β Third-Party Test Report | βοΈ | GC/MS analysis to confirm halogenated vs. non-halogenated composition. |
| β Commercial Invoice | βοΈ | Must explicitly state "Hydraulic Transmission Fluid" or "Hydraulic System Cleaner." |
| β Certificate of Origin (CO) | βοΈ | If not Chinese origin, may qualify for reduced tariffs. |
| β Packing List | βοΈ | Specify quantity, net weight, and gross weight. |
β 2. Declaration Strategy (Key Mantras)
π₯ "Transmission vs. Cleaning: Declare Precisely, Avoid Tariff Traps!"
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Hydraulic Fluid for Power Transmission | 3824.99.49.00 or 3824.99.55.00 |
Declaring as "Cleaning Fluid" β 38.7% (still high, but risky if misdeclared) |
| Hydraulic Cleaner | 3402.90.50.30, 3402.90.10.00, or 3810.90.50.00 |
Declaring as "Transmission Fluid" β 41.5% (higher base tariff) |
| Halogenated Hydraulic Fluid | 3824.99.55.00 |
Declaring as non-halogenated β 41.5% (penalty for misclassification) |
| Generic "Oil" | Never use vague terms | Vague terms β Customs delays, audits, or reclassification |
β 3. Special Case Handling
| Scenario | Handling Advice |
|---|---|
| OEM Custom Fluid | Provide client contract + chemical formula to avoid "unspecified" classification. |
| Hydraulic Fluid + Cleaner Kit | Declare separately. Mixing classifications increases audit risk. |
| Non-Chinese Origin | Apply for IEEPA exemption if from Vietnam, Mexico, etc. Tariffs drop to 0%~5%. |
| Small Quantity (De Minimis) | β No exemption for these HS codes. Even small shipments face full tariffs. |
π V. Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff | Certification Requirement | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 3824.99.49.00 |
41.5% (China) | SDS + GC/MS Report | Highest tariffs globally |
| π¨π³ China | 3824.99.49.00 |
5-6% | None | Low tariffs, but export controls may apply |
| πͺπΊ EU | 3824.99.49.00 |
6.5% | REACH + CLP | No surcharges |
| π¦πΊ Australia | 3824.99.49.00 |
5% | AICIS | Moderate tariffs |
| π―π΅ Japan | 3824.99.49.00 |
6.0% | JIS | No surcharges |
π Conclusion:
- USA imposes the highest tariffs due to Section 301 and IEEPA surcharges.
- China, EU, and Japan have lower base tariffs and no additional surcharges.
- Consider diversifying supply chains to non-Chinese origins for USA-bound shipments.
π VI. Common Errors & Pitfall Avoidance (Lessons Learned)
β Error 1: Declaring hydraulic cleaner as transmission fluid
π Consequence: Higher base tariff (6.5% vs. 3.7%) + potential fraud investigation.
β Error 2: Using vague terms like "Industrial Oil"
π Consequence: Customs delays, reclassification, and 41.5% tariff applied retroactively.
β Error 3: Failing to provide SDS or GC/MS reports
π Consequence: Customs cannot verify chemical composition β shipment held or returned.
β Error 4: Assuming de minimis exemption applies
π Consequence: Even small shipments face 38-41% tariffs.
β Correct Approach:
"Hydraulic Transmission Fluid, Non-Halogenated, Mineral-Based, Viscosity ISO 46, For Industrial Machinery, Model XYZ, SDS Attached"
π― VII. Conclusion: Precise Declaration, Cost Optimization, Efficient Clearance!
π― Remember the Mantras:
πΉ "Transmission vs. Cleaning: Declare Precisely!"
πΉ "Halogenated or Not: Prove It with GC/MS!"
πΉ "China to USA? Expect 38-41% Tariffs!"
π Pro Tips:
- If your hydraulic fluid is originating from Vietnam, Mexico, Thailand, or Malaysia, you may qualify for IEEPA exemptions, reducing tariffs to 0%~5%.
- Apply for Pre-Ruling (Advance Ruling) from U.S. Customs to lock in the correct HS code and tariff rate.
- Regularly audit your supply chain to ensure origin compliance and tariff optimization.
π£ Take Action Now:
π Contact a Licensed Customs Broker + Provide Product Specs + Apply for HS Code Pre-Ruling
π Ensure Smooth Clearance, Maximize Profit, and Minimize Tariff Burden!
β¨ Professional Clearance Starts with Accurate Classification!
πΌ Every Dollar Saved in Tariffs is Profit Gained!
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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) β Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) β More specific grouping within the chapter
- Subheading (6 digits) β Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) β 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 β The standard duty rate applied to WTO members
- General rate β Applied to countries without trade agreements
- Trade remedy duties β 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.