Oil Anti wear Agent
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 2836993000 | 36.7% | CN | US | Official Doc |
| 2842909050 | 10.0% | CN | US | Official Doc |
| 2836995050 | 10.0% | CN | US | Official Doc |
| 2842909010 | 10.0% | CN | US | Official Doc |
| 3824993990 | 35.0% | CN | US | Official Doc |
AI Analysis
π’οΈ Oil Anti-Wear Agents (Industrial & Lubricant Additives)
π HS Code Reference & Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
π 1. Product Definition & Classification: Do You Really Know "Anti-Wear Agents"?
Oil anti-wear agents are critical chemical additives used in lubricating oils, greases, and industrial fluids to reduce friction and prevent wear on metal surfaces. In international trade, they are classified based on their chemical composition and nature (single compound vs. mixture).
Key Distinction:
- Specific Inorganic Salts: Classified under Chapter 28 (Inorganic Chemicals), specifically carbonates, borates, or other inorganic acid salts.
- Chemical Additives (Other Salts): Classified under Chapter 28 as "other inorganic acid salts" or peroxoacids.
- Mixtures: Classified under Chapter 38 (Miscellaneous Chemical Products) if they contain two or more inorganic compounds blended together.
β οΈ Critical Classification Point:
- If the product is a pure single inorganic salt (e.g., Zinc Dialkyldithiophosphate, Borates, Carbonates), it falls under Chapter 28.
- If the product is a blended mixture of inorganic compounds, it falls under Chapter 38.24.99.
- DO NOT classify mixtures as single chemicals; this leads to significant tax discrepancies.
π¦ 2. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Applicable Scenario | Chemical Nature |
|---|---|---|---|
2836.99.30.00 |
Inorganic anti-wear agent, Carbonate category | Zinc carbonate, Calcium carbonate-based additives | β Carbonate Salt |
2842.90.90.50 |
Inorganic anti-wear agent, Other inorganic acid salts | Non-carbonate/borate inorganic salts used as additives | β Other Salt |
2836.99.50.50 |
Inorganic anti-wear agent, Carbonate or Borate | Specific borates or carbonates not covered elsewhere | β Carbonate/Borate |
2842.90.90.10 |
Inorganic anti-wear agent, Peroxoacids/Other Acid Salts | Complex inorganic acid salts | β Peroxoacid Salt |
3824.99.39.90 |
Inorganic anti-wear agent, Mixture | Blend of β₯2 inorganic compounds | β Mixture |
π Key Reminder:
- Single Compound vs. Mixture: This is the biggest compliance risk. A "blend" of anti-wear agents must go to3824.99.39.90. A pure chemical goes to2836or2842.
- Chemical Identity: The specific anion (Carbonate vs. Phosphate vs. Borate) determines whether it falls under2836or2842.
π° 3. 2026 Latest Tariff Rate Breakdown (Including Surcharges & Policy Add-ons)
β Applicable Country: United States (US)
β Origin: China (CN)
β Effective Date: 2025/2026 (Current Trade Rules)
π― 1. 2836.99.30.00 ββ Inorganic Anti-Wear Agent (Carbonate Category)
| Item | Content |
|---|---|
| Base Duty | 1.7% |
| Section 301 Surcharge | +25.0% |
| Section 122 Surcharge | +10.0% |
| Total Effective Rate | 36.7% |
| Tax Calculation | CIF Value Γ 36.7% |
| De Minimis Eligibility | β Not Eligible (High risk of audit) |
| Legal Path | Base Tariff β Section 301 (Footnote 9903.88.01) β Section 122 (China Specific) |
π Explanation:
- Carbonates are subject to the standard Section 301 30% rate (effective 25% in recent updates) plus the specific Section 122 10% levy on certain Chinese chemicals.
- Total 36.7% is a significant cost driver. Ensure the product is strictly a carbonate to justify this code. Misclassifying a mixture here could lead to penalties.
π― 2. 2842.90.90.50 ββ Inorganic Anti-Wear Agent (Other Inorganic Acid Salts)
| Item | Content |
|---|---|
| Base Duty | 0% (Often 0 or low for specific chemical salts) |
| Section 301 Surcharge | 0.0% (Note: Some lists may vary, but data shows 0 for this specific subheading in current context) |
| Section 122 Surcharge | +10.0% |
| Total Effective Rate | +10.0% |
| Tax Calculation | CIF Value Γ 10.0% |
| De Minimis Eligibility | β οΈ High Risk (Below 25%, may still be audited) |
| Legal Path | Section 122 (China Specific) |
π Note:
- If classified correctly as an "other inorganic acid salt" not covered by carbonates, the base rate may be lower.
- However, the Section 122 10% surcharge applies strictly to Chinese-origin goods in this category.
π― 3. 2836.99.50.50 ββ Inorganic Anti-Wear Agent (Carbonate or Borate)
| Item | Content |
|---|---|
| Base Duty | 0% |
| Section 301 Surcharge | 0.0% |
| Section 122 Surcharge | +10.0% |
| Total Effective Rate | +10.0% |
| Tax Calculation | CIF Value Γ 10.0% |
| De Minimis Eligibility | β οΈ High Risk |
π Note:
- Similar to2842.90.90.50, this code targets specific borates/carbonates with lower base rates.
- Ensure the product is not a mixture. If it is a mix, this code is incorrect.
π― 4. 2842.90.90.10 ββ Inorganic Anti-Wear Agent (Peroxoacids/Other Acid Salts)
| Item | Content |
|---|---|
| Base Duty | 0% |
| Section 301 Surcharge | 0.0% |
| Section 122 Surcharge | +10.0% |
| Total Effective Rate | +10.0% |
| Tax Calculation | CIF Value Γ 10.0% |
| De Minimis Eligibility | β οΈ High Risk |
π Note:
- Applies to complex inorganic salts like peroxoacids.
- Strict Chemical Definition: Must match the precise chemical definition of "peroxoacids or other acid salts."
π― 5. 3824.99.39.90 ββ Inorganic Anti-Wear Agent (Mixture)
| Item | Content |
|---|---|
| Base Duty | 0.0% |
| Section 301 Surcharge | +25.0% |
| Section 122 Surcharge | +10.0% |
| Total Effective Rate | 35.0% |
| Tax Calculation | CIF Value Γ 35.0% |
| De Minimis Eligibility | β Not Eligible |
| Legal Path | Base Tariff β Section 301 (Footnote 9903.88.01) β Section 122 |
π Explanation:
- This is the most common code for commercial "Anti-Wear Agents" sold as blends.
- If your product contains Zinc Dialkyldithiophosphate + Borate + Carrier, it is a Mixture and MUST use this code.
- Total 35.0% includes the heavy Section 301 (25%) and Section 122 (10%).
- DO NOT try to split a mixture into single chemical codes to avoid tax; this is customs fraud.
π οΈ 4. Clearance Practical Advice (Real-World Pitfall Avoidance)
β 1. Required Documentation Checklist (None Missing)
| Document | Mandatory | Description |
|---|---|---|
| β Product Spec Sheet | βοΈ | Must clearly list Chemical Name, CAS Number, and Composition %. |
| β Formula/Ingredient List | βοΈ | Essential to prove if it is a Single Compound or a Mixture. |
| β Technical Data Sheet (TDS) | βοΈ | Shows physical properties and intended use (Lubricant Additive). |
| β Commercial Invoice | βοΈ | Must state: "Inorganic Anti-Wear Agent for Lubricant" + HS Code. |
| β Certificate of Origin (CO) | βοΈ | Required to determine Section 122 applicability (China origin). |
| β Safety Data Sheet (SDS) | βοΈ | For customs safety compliance and hazard classification. |
β 2. Declaration Tips (Critical Mnemonic)
π₯ "Mixture Goes to 38, Pure to 28, Carbonate vs Salt, Check the Anion!"
| Scenario | Correct HS Code | Common Error |
|---|---|---|
| Blend of 2+ inorganic compounds | 3824.99.39.90 |
Misclassifying as 2836 β Penalty + Back Taxes |
| Pure Zinc Carbonate | 2836.99.30.00 |
Overpaying tax if misclassified as mixture |
| Pure Borate Salt | 2836.99.50.50 |
Misclassifying as 3824 β Unnecessary 25% Surtax |
| Phosphate/Other Acid Salt | 2842.90.90.50/10 |
Confusing with Carbonate |
β 3. Special Situation Handling
| Situation | Handling Advice |
|---|---|
| OEM Custom Blend | Provide a detailed formula breakdown by weight %. If any component is >5%, ensure the overall classification reflects the principal characteristic or mixture status. |
| "Anti-Wear" Claim | Ensure the TDS supports the claim. If it's primarily a detergent or rust inhibitor, the HS Code may change to 3811 or 3824. Anti-wear specifically points to friction modifiers. |
| Chinese Origin | Be prepared for Section 122 (10%) on all codes. Ensure the CO accurately reflects China origin. |
| De Minimis ($800) | Not Applicable. All these codes are subject to Section 301/122 surcharges. Do not use de minimis entry. |
π 5. Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Duty Rate (China Origin) | Certification | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 3824.99.39.90 (Mixture) |
35.0% | TSCA | Section 301 + 122 apply. |
| πΊπΈ USA | 2836.99.30.00 (Carbonate) |
36.7% | TSCA | Higher base tax. |
| π¨π³ China | 3824.99.39.90 |
~7-10% | N/A | Lower base rates, no US surcharges. |
| πͺπΊ EU | 3824.99.98 |
~3-6% | REACH | No Section 301/122. REACH registration required. |
| π¬π§ UK | 3824.99.98 |
~3-6% | UK REACH | Post-Brexit regulations apply. |
π Conclusion:
- USA is the most expensive market for these products due to Section 122 (10%) and Section 301 (25%).
- EU/UK have lower duties but stricter REACH chemical registration requirements.
- China Origin is the key factor for the 10-25% surcharges.
π 6. Common Mistakes & Pitfall Guide (Blood & Tears Lessons)
β Mistake 1: Classifying a Mixture as a Single Chemical (2836 or 2842) to avoid the 25% Section 301 tax.
π Consequence: Customs will audit the formula, find the mixture, and charge Back Taxes + 25% Penalty + Interest.
β Mistake 2: Ignoring the Section 122 10% surcharge for Chinese-origin goods.
π Consequence: Even if base tax is 0, you owe 10%. Failure to declare leads to Seizure.
β Mistake 3: Using vague descriptions like "Lubricant Additive" without specifying Chemical Nature.
π Consequence: Customs will reclassify, leading to Delays and potential Misdeclaration flags.
β Mistake 4: Assuming De Minimis ($800) applies.
π Consequence: These goods are Explicitly Excluded from de minimis due to Section 301/122. Packages will be Blocked.
β Correct Practice:
"Inorganic Anti-Wear Agent Mixture, Containing Zinc Dialkyldithiophosphate and Borates, CAS #XXXX-XX-X, Mixture of Inorganic Compounds, HS 3824.99.39.90"
π― 7. Conclusion: Precise Classification Saves Money!
π― Remember the Mnemonic:
πΉ "Mixture to 38, Pure to 28, Carbonate 36.7, Mixture 35, Pure Salts 10!"
πΉ "HS Code Defines Tax, Classification Defines Profit, Declare Accurately or Pay Double!"
π Pro Tip:
If your product is a pure single compound (e.g., pure Borax), classify under 2836.99.50.50 to save 25% in Section 301 taxes compared to a mixture (3824).
However, if it is a blend, you MUST use 3824.99.39.90 to comply.
Get a Pre-Ruling from CBP if you are unsure about the mixture threshold.
π£ Immediate Action:
π Contact a Licensed Customs Broker + Provide Full Formula + Apply for CBP Pre-Ruling
π Ensure Smooth Clearance, Avoid Seizure, Maximize Profit!
β¨ Professional Clearance Starts with Accurate Classification!
πΌ Every Cent of Tax Should Be Precisely Calculated!
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) 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.