橡胶防锈剂
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3403990000 | 41.5% | CN | US | Official Doc |
| 3403195000 | 40.8% | CN | US | Official Doc |
| 2934203500 | 41.5% | CN | US | Official Doc |
| 2934991500 | 16.5% | CN | US | Official Doc |
| 3808922800 | 38.7% | CN | US | Official Doc |
AI Analysis
🛡️ Rubber Anti-Rust/Anti-Aging Agents (Rubber Protective Agents)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Strategy for Chemical Imports
📌 Part 1: Product Definition & Classification: Do You Really Understand "Rubber Anti-Rust Agents"?
"Rubber Anti-Rust Agent" is a common commercial name, but in international trade and customs classification, it usually refers to two distinct types of chemical additives:
- Rubber Anti-Aging Agents (Antioxidants): Used to prevent rubber from cracking, hardening, or losing elasticity due to oxidation and ozone exposure. These are often chemical preparations for treating materials.
- Rubber Anti-Mold/Fungi Agents: Used to prevent microbial growth on rubber surfaces. These may be classified as pesticides/fungicides or miscellaneous chemical products.
⚠️ Key Distinction Point: - If the product is primarily for protecting against oxidation/aging (chemical stabilization) → It falls under Chapter 34 (Preparations for lubricating/processing) or Chapter 29 (Organic Chemicals). - If the product is primarily for killing fungi/mold (biocidal function) → It may fall under Chapter 38 (Miscellaneous Chemical Products) or Chapter 29 (Heterocyclic Compounds). - Critical Note: The term "Anti-Rust" is misleading for rubber. Rubber does not "rust" (corrode like iron). It "ages" or "molds." Therefore, customs will look at the chemical composition and primary function.
📦 Part 2: HS Code Classification Details (2026 Latest Tariff Authority Comparison)
Based on the provided data, here are the 5 possible HS codes and their detailed rationales:
| HS Code | Product Description | Applicable Scenario | Classification Logic |
|---|---|---|---|
3403.99.00.00 |
Rubber Anti-Aging Agent (Chemical Preparation) | Lubricants, greases, or chemical preparations for treating materials | ✅ Primary Function: Protection/Processing. Falls under "Oils or chemical preparations... for protecting or treating materials." |
3403.19.50.00 |
Rubber Anti-Aging Agent (Specific Chemical Preparation) | Chemical treatments specifically for rubber materials | ✅ Primary Function: Material treatment. Fits "Lubricating/processing preparations" specifically for rubber. |
2934.20.35.00 |
Rubber Anti-Mold Agent (Benzothiazole Ring Compound) | Contains benzothiazole heterocyclic ring; acts as a preservative | ✅ Chemical Structure: Specific heterocyclic compound. Fits "Pesticides/Preservatives" with specific chemical structure. |
2934.99.15.00 |
Rubber Anti-Mold Agent (Other Heterocyclic Compounds) | Other heterocyclic compounds not specified elsewhere | ✅ Catch-all Principle: "Other/n.e.s." (not elsewhere specified) heterocyclic compounds. Lower tax rate applies. |
3808.92.28.00 |
Rubber Anti-Mold Agent (Biocidal/Sterilizing Function) | Chemical制剂 with杀菌 (sterilizing/biocidal) function | ✅ Functional Classification: Classified as a fungicide/biocidal preparation under Chapter 38. |
🔍 Key Reminder: -
3403.xxCodes: Best for Anti-Aging/Oxidation products. Focus on "processing/protection" function. -2934.xxCodes: Best for Anti-Mold products with specific heterocyclic chemical structures (e.g., benzothiazole derivatives). -3808.92Code: Best for Anti-Mold products classified broadly by biocidal function rather than specific chemical structure.
💰 Part 3: 2026 Latest Tariff Rate Breakdown (Including Surcharges & Policy Additions)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Time: Current rates apply (based on Section 301 & IEEPA provisions)
🎯 1. 3403.99.00.00 —— Rubber Anti-Aging Agent (General Chemical Preparation)
| Item | Content |
|---|---|
| Base Tariff | 6.5% (ad valorem) |
| Section 301 Surcharge (25%) | +25% (Due to origin in China) |
| Section 122 Surcharge (10%) | +10% (Specific policy addition for this HS code) |
| Total Tariff Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption? | ❌ No (Denied for Section 301 goods) |
| Legal Basis Path | USITC:3403.99.00.00 → Footnote:25% → Footnote:10% |
📌 Explanation: - This code is for general chemical preparations for treating materials. - The 41.5% rate is very high, combining base duty (6.5%) + Section 301 (25%) + Section 122 (10%). - Cost Impact: High. Ensure accurate declaration to avoid penalties.
🎯 2. 3403.19.50.00 —— Rubber Anti-Aging Agent (Specific Preparation)
| Item | Content |
|---|---|
| Base Tariff | 5.8% |
| Section 301 Surcharge (25%) | +25% (Due to origin in China) |
| Section 122 Surcharge (10%) | +10% (Specific policy addition for this HS code) |
| Total Tariff Rate | 40.8% |
| Tax Calculation | CIF Value × 40.8% |
| De Minimis Exemption? | ❌ No |
| Legal Basis Path | USITC:3403.19.50.00 → Footnote:25% → Footnote:10% |
📌 Note: - Slightly lower than
3403.99.00.00due to a lower base rate (5.8% vs 6.5%). - Still subject to 40.8% total duty.
🎯 3. 2934.20.35.00 —— Rubber Anti-Mold Agent (Benzothiazole Compound)
| Item | Content |
|---|---|
| Base Tariff | 6.5% |
| Section 301 Surcharge (25%) | +25% (Due to origin in China) |
| Section 122 Surcharge (10%) | +10% (Specific policy addition for this HS code) |
| Total Tariff Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption? | ❌ No |
| Legal Basis Path | USITC:2934.20.35.00 → Footnote:25% → Footnote:10% |
📌 Explanation: - Applies to specific heterocyclic compounds (e.g., benzothiazole-based anti-mold agents). - Classifies as a pesticide/preservative due to its chemical structure and function.
🎯 4. 2934.99.15.00 —— Rubber Anti-Mold Agent (Other Heterocyclic Compounds)
| Item | Content |
|---|---|
| Base Tariff | 6.5% |
| Section 301 Surcharge (0%) | +0% (No Section 301 surcharge for this specific code) |
| Section 122 Surcharge (10%) | +10% (Specific policy addition for this HS code) |
| Total Tariff Rate | 16.5% |
| Tax Calculation | CIF Value × 16.5% |
| De Minimis Exemption? | ❌ No (Section 122 still applies) |
| Legal Basis Path | USITC:2934.99.15.00 → Footnote:0% → Footnote:10% |
📌 Strategic Advantage: - LOWEST TAX RATE (16.5%)! - Why? This code is classified as "Other heterocyclic compounds" and does not trigger the 25% Section 301 surcharge. - Requirement: Must prove the product is a heterocyclic compound not specifically listed elsewhere.
🎯 5. 3808.92.28.00 —— Rubber Anti-Mold Agent (Biocidal Preparation)
| Item | Content |
|---|---|
| Base Tariff | 3.7% |
| Section 301 Surcharge (25%) | +25% (Due to origin in China) |
| Section 122 Surcharge (10%) | +10% (Specific policy addition for this HS code) |
| Total Tariff Rate | 38.7% |
| Tax Calculation | CIF Value × 38.7% |
| De Minimis Exemption? | ❌ No |
| Legal Basis Path | USITC:3808.92.28.00 → Footnote:25% → Footnote:10% |
📌 Explanation: - Classified as a fungicide/biocidal preparation. - Lower base rate (3.7%) but still subject to full Section 301 surcharge.
🛠️ Part 4: Customs Clearance Practical Advice (Battle-Tested Pitfall Avoidance)
✅ 1. Document Preparation Checklist (Essential Documents)
| Document | Required | Description |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must detail chemical composition (e.g., % benzothiazole), CAS numbers, and intended use. |
| ✅ MSDS (Material Safety Data Sheet) | ✔️ | Mandatory for all chemical imports. Must classify hazard level correctly. |
| ✅ Product Photos (Label + Packaging) | ✔️ | Clear view of ingredients, warnings, and usage instructions. |
| ✅ Third-Party Test Report | ✔️ | Proof of function (e.g., anti-aging test results or anti-mold efficacy). |
| ✅ Commercial Invoice | ✔️ | Must clearly state "Rubber Anti-Aging Agent" or "Anti-Mold Chemical Preparation," NOT "Anti-Rust Agent." |
| ✅ Certificate of Origin (CO) | ✔️ | For US origin determination. |
| ✅ Packing List | ✔️ | Detail net/gross weight, dimensions, and packaging type. |
✅ 2. Declaration Tips (Key Mnemonics)
🔥 "Function Defines Code, Structure Dictates Tax!"
| Scenario | Correct Declaration | Wrong Approach | Consequence |
|---|---|---|---|
| Anti-Aging (Oxidation Protection) | 3403.19.50.00 or 3403.99.00.00 |
Misdeclare as 2934 (Chemical) |
Higher tax (41.5% vs 40.8%) or penalty for misclassification. |
| Anti-Mold (Biocidal) | 3808.92.28.00 |
Misdeclare as 3403 (Lubricant) |
Tax difference (38.7% vs 41.5%); risk of FDA/pesticide regulatory review. |
| Anti-Mold (Specific Heterocyclic) | 2934.99.15.00 |
Misdeclare as 3808 |
Huge Savings! 16.5% vs 38.7%. Must prove chemical structure. |
| Generic "Anti-Rust" Name | Avoid! | Use "Anti-Rust" on Invoice | Customs will reject or reclassify. Use "Anti-Aging" or "Anti-Mold." |
✅ 3. Special Case Handling
| Scenario | Handling Advice |
|---|---|
| OEM Custom Formula | Provide exact CAS numbers and percentages. If it contains benzothiazole, consider 2934.20.35.00 or 2934.99.15.00 for potential lower tax. |
| Multi-Function Product | If it both anti-ages AND anti-molds, declare based on primary function. If primary is anti-aging, use 3403; if anti-mold, use 3808 or 2934. |
| Unsure of Chemical Structure | Choose 3808.92.28.00 or 3403.xx to be safe, but accept higher tax. Avoid 2934 unless you have chemical proof. |
| Importing to Multiple Countries | Check if Vietnam/Mexico/Thailand origins qualify for IEEPA Exemptions (0-5% duty). |
🌍 Part 5: Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification Required | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 2934.99.15.00 |
16.5% (Best Rate) | None specific | Highest savings if structure allows. |
| 🇨🇳 China | 2934.99.15.00 |
16.5% (Export Tax) | None | For export to China. |
| 🇪🇺 EU | 3808.92 or 2934 |
Varies (0-6.5%) | REACH Registration | REACH Compliance is Critical. |
| 🇦🇺 Australia | 3808.92 |
5% | APVMA Approval | For biocidal products. |
| 🇯🇵 Japan | 3808.92 |
0-6% | Fertilizer & Pesticide Control Law | Strict regulation on anti-mold. |
📌 Conclusion: - USA:
2934.99.15.00is the winner with 16.5% tax. - EU/AU/JP: Focus on Regulatory Compliance (REACH, APVMA, FPCO) rather than just tariff rate.
📌 Part 6: Common Mistakes & Pitfall Guide (Lessons Learned)
❌ Mistake 1: Using the term "Anti-Rust" in documentation. 👉 Consequence: Customs will reject or reclassify. Rubber does not rust. Use "Anti-Aging" or "Anti-Mold."
❌ Mistake 2: Misclassifying Anti-Mold agents as Lubricants (3403).
👉 Consequence: Regulatory violation (EPA/FDA) and potential penalties. Anti-mold is a biocidal function.
❌ Mistake 3: Not providing CAS Numbers for chemical components. 👉 Consequence: Customs cannot determine the correct sub-heading. Leads to delay or audit.
❌ Mistake 4: Assuming all 2934 codes have 0% Section 301 tax.
👉 Consequence: Only 2934.99.15.00 has 0% Section 301. 2934.20.35.00 has 25%. Check each code individually.
✅ Correct Approach:
"Rubber Anti-Aging Agent, Chemical Preparation, Contains [CAS Number], For Protecting Rubber from Oxidation, Model XYZ, MSDS Attached"
🎯 Part 7: Conclusion: Precision in Classification Saves Money!
🎯 Remember the Mnemonic:
🔹 "Anti-Rust is Wrong, Anti-Aging is Right!"
🔹 "Heterocyclic Structure Saves 25% Tax!" (2934.99.15.00vs3808.92.28.00)
🔹 "Function Determines Chapter, Structure Determines Rate!"
📌 Pro Tip:
If your product is a benzothiazole-based anti-mold agent, try to declare it under
2934.99.15.00if it fits the "other heterocyclic compound" criteria. This saves 22.2% in tariffs compared to3808.92.28.00!Action: Consult a chemical expert to confirm the CAS number and structure before declaring.
📣 Immediate Action:
📞 Contact a professional customs broker + Provide MSDS + Apply for Pre-Ruling if unsure. 🚀 Let your chemical products clear smoothly, legally, and profitably!
✨ Professional Customs Clearance Starts with Precise Classification! 💼 Every Percent of Tax Saved is Pure Profit!
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.