橡胶硫化促进剂复配品
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 2942003500 | 41.5% | CN | US | Official Doc |
| 3812101000 | 41.5% | CN | US | Official Doc |
| 2942005000 | 38.7% | CN | US | Official Doc |
| 3824405000 | 40.0% | CN | US | Official Doc |
| 3824999330 | 40.0% | CN | US | Official Doc |
AI Analysis
⚗️ Rubber Vulcanization Accelerator Compounds (Rubber Auxiliaries & Compounds)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Level Strategy
📌 I. Product Definition & Classification: Do You Really Know "Rubber Vulcanization Accelerator Compounds"?
Rubber vulcanization accelerator compounds are critical chemical additives used in the rubber industry to speed up the vulcanization process (hardening) and improve the physical properties of the final product. In international trade, they are not a single entity but are classified based on their chemical composition and physical state.
These products generally fall into two main categories: 1. Single Active Ingredients/Chemicals: Pure organic compounds or specific sulfur-based accelerators. 2. Mixed/Complex Preparations: Liquid formulations, blends of multiple accelerators, antioxidants, or stabilizers.
⚠️ Critical Distinction Point: - If the product is a pure organic chemical (e.g., a specific sulfenamide or thiuram accelerator), it belongs to Chapter 29 (Organic Chemicals). - If the product is a mixture, emulsion, or liquid preparation containing the accelerators along with other carriers or stabilizers, it belongs to Chapter 38 (Miscellaneous Chemical Products).
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
Based on the provided data, the classification splits into four specific HS Codes depending on the exact nature of the compound:
| HS Code | Product Description | Applicable Scenario | Key Classification Logic |
|---|---|---|---|
2942.00.35.00 |
Other Organic Compounds (Aromatic/Modified Aromatic) | Pure rubber vulcanization accelerators or antioxidants that are aromatic organic compounds. | Classified as Other Organic Compounds. Material is aromatic or modified aromatic. |
3812.10.10.00 |
Rubber Accelerator Preparation | Rubber vulcanization accelerators matched with other agents. | Classified as a Compound Stabilizer. It is a preparation specifically for rubber processing. |
2942.00.50.00 |
Other Organic Compounds | Organic synthetic chemicals (accelerators/antioxidants) not falling under specific aromatic sub-headings. | Classified as Other Organic Compounds. Focuses on the "Organic Synthesis" aspect. |
3824.40.50.00 |
Chemical Preparations (Other) | Complex liquid compounds or "auxiliary agent blends" prepared for specific additive purposes. | Classified as Chemical Preparation. Matches "Prepared Additive" usage. |
3824.99.93.30 |
Other Chemical Products/Preparations (Liquid/Mix) | Rubber auxiliary liquid compounds/mixtures not specified elsewhere. | Classified as Miscellaneous Chemical Product. Focuses on the "Liquid/Mixture" physical state. |
🔍 Key Reminder: - Pure Chemicals (Powders/Crystals) usually go to 2942 (Organic Chemicals). - Liquid Blends/Preparations usually go to 3824 or 3812 (Chemical Preparations). - Misclassification can lead to significant tax differences or customs holds.
💰 III. 2026 Latest Tariff Rate Details (Including Surcharges & Policy Add-ons)
✅ Applicable Country: United States (US) ✅ Origin: China (CN) ✅ Effective Time: Includes subsequent imports (Post-2025 policy environment)
🎯 1. 2942.00.35.00 & 2942.00.50.00 —— Organic Compounds (Pure Chemicals)
| Item | Content |
|---|---|
| Base Tariff | 6.5% (for .35) / 3.7% (for .50) |
| Section 301 Surcharge | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tax Rate | 41.5% (.35) / 38.7% (.50) |
| Tax Calculation | CIF Value × Total Rate |
| De Minimis Exemption | ❌ Not Eligible (Deny de minimis for these codes from China) |
| Legal Basis Path | Base Tariff → USITC Footnote (301 Clause) → Section 122 (China Specific) |
📌 Explanation: - Base Tariff: Varies slightly based on whether it's classified under the general aromatic sub-heading (.35) or other organic compounds (.50). - Section 301 (+25%): The standard punitive tariff on Chinese goods under Trade Act Section 301. - Section 122 (+10%): A specific additional tariff applied to Chinese imports (note: specific clause numbers may vary by year, but the 10% surcharge is consistent in the provided data). - Total: These pure chemical accelerators face a high tax burden (~40%).
🎯 2. 3812.10.10.00 —— Rubber Accelerator Preparation
| Item | Content |
|---|---|
| Base Tariff | 6.5% |
| Section 301 Surcharge | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tax Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | Base Tariff → USITC Footnote (301 Clause) → Section 122 (China Specific) |
📌 Note: - Even though this is a "preparation," the base tariff is higher (6.5%) than the other organic compound code (3.7%). - The surcharges are identical. The total cost is 41.5%.
🎯 3. 3824.40.50.00 & 3824.99.93.30 —— Chemical Preparations (Liquid/Mix)
| Item | Content |
|---|---|
| Base Tariff | 5.0% |
| Section 301 Surcharge | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tax Rate | 40.0% |
| Tax Calculation | CIF Value × 40.0% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | Base Tariff → USITC Footnote (301 Clause) → Section 122 (China Specific) |
📌 Optimization Insight: - Lower Base Rate: These codes have a lower base tariff (5.0%) compared to the 6.5% of Code
2942.00.35.00and3812.10.10.00. - Total Savings: By correctly classifying a liquid compound as3824.40.50.00or3824.99.93.30, you save 1.5% on the total tax rate (40.0% vs 41.5%). - Condition: This classification is valid only if the product is a liquid mixture or complex preparation, not a pure solid chemical.
🛠️ IV. Customs Clearance Practical Advice (Battle-Tested Pitfall Avoidance)
✅ 1. Required Documentation Checklist (Mandatory)
| Document | Must Provide | Description |
|---|---|---|
| ✅ Technical Data Sheet (TDS) | ✔️ | Must detail chemical components, concentration, and physical state (solid/liquid). |
| ✅ Formula/Composition Breakdown | ✔️ | Critical for distinguishing between "Organic Chemical" (Ch 29) and "Preparation" (Ch 38). |
| ✅ Product Photos (Label & Bulk) | ✔️ | Clear visibility of HS Code on packaging, if present, and physical appearance. |
| ✅ Safety Data Sheet (SDS) | ✔️ | Required for hazardous chemical verification. |
| ✅ Commercial Invoice | ✔️ | Must clearly state "Rubber Vulcanization Accelerator Compound" or similar precise description. |
| ✅ Certificate of Origin (CO) | ✔️ | To verify Chinese origin and apply applicable surcharges. |
✅ 2. Declaration Tips (Key Mnemonics)
🔥 "State Matters: Solid is Ch29, Liquid is Ch38. Base Rate Dictates the Savings!"
| Scenario | Correct HS Code | Wrong Approach | Consequence |
|---|---|---|---|
| Pure Powder/Crystal Accelerator | 2942.00.35.00 or 2942.00.50.00 |
Declaring as Liquid Mixture | Risk of Audit/Rejection (Mismatch with SDS/Physical State) |
| Liquid Rubber Auxiliary Blend | 3824.40.50.00 |
Declaring as Pure Organic Chemical | Overpayment: 41.5% vs 40.0% (Unnecessary cost) |
| Specific Rubber Accelerator Mix | 3812.10.10.00 |
Declaring as General Chemical | Higher Base Rate: 6.5% vs 5.0% |
✅ 3. Special Case Handling
| Situation | Handling Advice |
|---|---|
| Mixed Solid/Liquid Form | Check the primary characteristic. If liquid carrier dominates, lean towards 3824. |
| Contains Hazardous Components | Ensure SDS is compliant with US DOT/OSHA regulations. May require additional hazmat fees. |
| OEM Custom Blend | Provide the exact formulation to the broker. Do not use vague terms like "Chemical Mixture." Use "Rubber Vulcanization Accelerator Compound." |
| Antioxidant Blends | If antioxidants are the main component, ensure they are classified under the correct "Preparation" code (3824) if mixed, rather than pure organic codes. |
🌍 V. Global Market Customs Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification Req. | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3824.40.50.00 (Best for liquids) |
40.0% Total | SDS, DOT Hazmat | High surcharges (35%) |
| 🇨🇳 China | 2942.00.50.00 / 3824.40.50.00 |
~3-6% (Export) | None | Low export tax |
| 🇪🇺 EU | 3824.40.50.00 |
~2-6% | REACH Registration | REACH compliance is critical |
| 🇯🇵 Japan | 3824.40.50.00 |
~0-6% | JIS Standards | Varies by specific compound |
📌 Conclusion: - USA: The total tax rate is the highest globally due to Section 301 and Section 122 surcharges. - EU: REACH registration is the biggest hurdle, not just the tariff. - Optimization: In the US market, aiming for the 3824 codes (40.0%) instead of 3812 or 2942 (41.5%) can save 1.5% on the total CIF value, which is significant for bulk chemical shipments.
📌 VI. Common Errors & Pitfall Avoidance (Lessons Learned)
❌ Error 1: Declaring a Liquid Compound as a Pure Organic Chemical (2942)
👉 Consequence: Overpayment. You pay 41.5% instead of 40.0%. Also, customs may reject it because the physical state (liquid) doesn't match the typical presentation of pure organic chemicals.
❌ Error 2: Declaring a Pure Solid Accelerator as a Preparation (3824)
👉 Consequence: Customs Audit/Rejection. The broker will ask for proof of "preparation/mixture." If you can't prove it's a mix, they will reclassify to Ch 29, causing delays.
❌ Error 3: Vague Description "Chemical Additive" 👉 Consequence: High Scrutiny. Customs may apply the highest applicable duty rate from among similar codes or hold the cargo for inspection.
✅ Correct Practice:
"Liquid Rubber Vulcanization Accelerator Compound, CAS No. [Insert if applicable], Containing [Component A] and [Component B], for Tire Manufacturing Use."
🎯 VII. Conclusion: Professional Declaration, Save Cost, Ensure Compliance!
🎯 Remember the Mantra:
🔹 "Solid = Ch29, Liquid = Ch38." 🔹 "3824 saves you 1.5% vs 3812/2942." 🔹 "Total US Tax is ~40-41.5%. Plan your margins accordingly!"
📌 Pro Tip: If your product is a custom blend designed specifically for rubber, ensure your Technical Data Sheet highlights the "Preparation" aspect (e.g., "Emulsion," "Solution," "Blend"). This supports the classification under 3824.40.50.00, securing the lower base tariff.
📣 Immediate Action:
📞 Consult your customs broker with the exact formulation. 📄 Prepare SDS and TDS before shipping. 💡 Apply for Advance Ruling if you are unsure about the Ch 29 vs Ch 38 classification.
✨ Professional clearance starts with precise classification! 💼 Every percentage point counts in chemical trade!
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.