Rubber Accelerator for Tires
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3812 | 0.0% | CN | US | Official Doc |
| 2904 | 0.0% | CN | US | Official Doc |
AI Analysis
⚗️ Rubber Accelerators for Tire Manufacturing (硫化促进剂/加速剂)
🌐 HS Code Classification & Customs Clearance Guide | 2026 Tariff Full Analysis | Professional Compliance Strategy
📌 I. Product Definition & Classification: Do You Really Understand "Rubber Accelerators"?
Rubber accelerators are essential chemical additives in the rubber industry, specifically used to speed up the vulcanization (curing) process of rubber, thereby improving the physical and mechanical properties of the final product (such as tires). In international trade, they are primarily classified into two categories based on their chemical nature and commercial form:
-
Preparations (Pre-mixes/Compounds): These are ready-to-use chemical preparations, often containing accelerators mixed with other adjuvants, carriers, or carriers. They are classified based on their function as rubber processing aids.
- Key Characteristic: They are "preparations of a kind used as accelerators."
- HS Chapter: 38 (Miscellaneous Chemical Products).
-
Specific Organic Compounds: These are pure or specific chemical entities (e.g., Sulfenamides, Thiazoles, Guanidines) that contain halogenated sulfur groups or other specific organic structures. They are classified based on their chemical composition.
- Key Characteristic: They are organic compounds containing specific functional groups (like halogenated sulfur).
- HS Chapter: 29 (Organic Chemicals).
⚠️ Critical Distinction Point:
- If the product is a commercial preparation specifically marketed for use as a rubber accelerator (even if it contains active ingredients), it generally falls under 3812.
- If the product is a specific organic chemical compound (especially those with halogenated sulfur groups) and is classified by its organic composition rather than its form as a preparation, it may fall under 2904.
- Note: The classification depends heavily on the exact chemical structure and whether it is sold as a "preparation" or a "pure compound."
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Application Scenario | Classification Basis |
|---|---|---|---|
3812 |
Preparations of a kind used as accelerators or vulcanizing agents, in particular for rubber (e.g., tire manufacturing). | Commercial accelerator packages, pre-mixed rubber additives, tire manufacturing chemicals. | Functional Preparation: Classified by its use as an accelerator/preparation for rubber. |
2904 |
Organic compounds containing halogenated sulfur groups; derivatives thereof, which may include specific chemical accelerators if classified by their organic composition rather than preparation form. | Pure chemical accelerators like certain sulfenamides, thiazoles, or halogenated sulfur derivatives. | Chemical Composition: Classified by specific organic chemical structure (halogenated sulfur groups). |
🔍 Key Reminder:
- Most commercially available rubber accelerators for tire manufacturing are classified under 3812 because they are often "preparations" designed for ease of use in rubber compounding.
- If you are exporting a pure chemical intermediate that is a specific organic compound with halogenated sulfur groups, and it is not formulated as a "preparation" for direct rubber use, it may fall under 2904.
- Do not assume all rubber chemicals are 3812; check the chemical structure. If it’s a specific organic compound with halogenated sulfur, 2904 might apply.
💰 III. 2026 Latest Tariff Rate Details (Including Surcharges & Policy Add-ons)
✅ Applicable Country: USA (US)
✅ Origin: China (CN)
✅ Effective Date: From November 10, 2025 (including subsequent imports)
🎯 1. 3812 — Preparations for Rubber Vulcanization/Acceleration
| Item | Content |
|---|---|
| Base Tax Rate | Error / Failed to retrieve |
| USITC Surcharges | Error / Failed to retrieve |
| IEEPA Surcharges | Error / Failed to retrieve |
| Total Tax Rate | Error |
| Tax Calculation | CIF × (Error) |
| De Minimis Eligibility | ❌ Error (Failed to retrieve) |
| Legal Basis Path | Failed to retrieve tax information |
📌 Explanation:
- The system failed to retrieve specific tax details for HS Code 3812 from the provided data source.
- Caution: In real-world scenarios, HS 3812 products from China to the US often face additional tariffs under Section 301. However, based strictly on the provided<DATA>, the tax information is unavailable.
- Recommendation: Always verify with current USITC databases or a customs broker, as "Failed to retrieve" does not mean zero tax.
🎯 2. 2904 — Organic Compounds with Halogenated Sulfur Groups
| Item | Content |
|---|---|
| Base Tax Rate | Error / Failed to retrieve |
| USITC Surcharges | Error / Failed to retrieve |
| IEEPA Surcharges | Error / Failed to retrieve |
| Total Tax Rate | Error |
| Tax Calculation | CIF × (Error) |
| De Minimis Eligibility | ❌ Error (Failed to retrieve) |
| Legal Basis Path | Failed to retrieve tax information |
📌 Note:
- Similar to 3812, the tax details for HS 2904 are unavailable in the provided data.
- HS 2904 covers specific organic chemicals. If your product is a pure chemical compound with halogenated sulfur groups, this code may apply.
- Do not assume standard rates apply; always confirm with up-to-date customs rulings.
🛠️ IV. Customs Clearance Practical Advice (Real-World Pitfall Avoidance Guide)
✅ 1. Documentation Checklist (None Missing)
| Document | Required | Description |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must clearly state: "Rubber Accelerator," chemical composition, usage in tire manufacturing. |
| ✅ Certificate of Analysis (COA) | ✔️ | For HS 2904, COA is critical to prove chemical purity and structure (halogenated sulfur groups). |
| ✅ MSDS (Material Safety Data Sheet) | ✔️ | Mandatory for chemical imports. Indicates hazardous nature if any. |
| ✅ Commercial Invoice | ✔️ | Must clearly describe the goods as "Preparations for Rubber Acceleration" (3812) or "Organic Compounds..." (2904). |
| ✅ Packing List | ✔️ | Detail net/gross weight, number of packages. |
| ✅ Origin Certificate (CO) | ✔️ | If non-China origin, to claim preferential rates (if any). |
📌 Critical Point:
- For HS 3812: The description should emphasize the preparation aspect (e.g., "Pre-mix for vulcanization").
- For HS 2904: The description should emphasize the chemical structure (e.g., "Organic compound containing halogenated sulfur groups").
✅ 2. Declaration Tips (Key Mnemonic)
🔥 "Prep for 38, Pure for 29, Describe Exactly, Avoid Delays!"
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Commercial accelerator blend | 3812 - "Preparations of a kind used as accelerators for rubber" |
Mislabeling as "Organic Chemical" → Risk of reclassification to 2904 or 2939. |
| Pure chemical accelerator (e.g., specific sulfenamide) | 2904 - "Organic compounds containing halogenated sulfur groups" |
Mislabeling as "Preparation" → May face higher scrutiny for chemical purity. |
| Mixed chemical shipment | Separate declarations | Mixing 3812 and 2904 items in one declaration → Customs detention. |
✅ 3. Special Case Handling
| Scenario | Handling Advice |
|---|---|
| OEM Custom Accelerator | Provide formulation details. If it’s a unique mix, clarify if it’s a "preparation" (3812) or a specific compound (2904). |
| Halogenated Sulfur Compounds | If the product contains halogenated sulfur groups, ensure HS 2904 is considered. These may have additional environmental regulations. |
| Tire Manufacturing Chemicals | If used specifically for tire vulcanization, HS 3812 is more common. Ensure the invoice mentions "for rubber/tire industry." |
| Hazardous Chemicals | Check if the product is classified as hazardous. If so, additional hazardous material declarations may be required. |
🌍 V. Global Major Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3812 or 2904 |
Error (Check USITC) | TSCA (Toxic Substances Control Act) | Ensure TSCA compliance for chemical imports. |
| 🇨🇳 China | 3812 or 2904 |
Error | CCC (if applicable) | Standard chemical import procedures. |
| 🇪🇺 EU | 3812 or 2904 |
Error | REACH Registration | REACH compliance is mandatory for chemical substances. |
| 🇦🇺 Australia | 3812 or 2904 |
Error | AICIS (Australian Industrial Chemicals Introduction Scheme) | AICIS notification may be required. |
| 🇯🇵 Japan | 3812 or 2904 |
Error | PRTR (Pollutant Release and Transfer Register) | Check chemical safety regulations. |
📌 Conclusion:
- USA: HS 3812 is common for rubber accelerators. Verify current Section 301 tariffs.
- EU: REACH registration is critical for HS 2904 chemicals.
- Global: Chemical products require strict compliance with local chemical safety regulations (TSCA, REACH, etc.).
📌 VI. Common Errors & Pitfall Guide (Lessons Learned)
❌ Error 1: Misclassifying a "preparation" as a "pure compound" or vice versa
👉 Consequence: Customs may reclassify, leading to duty underpayment and penalties.
❌ Error 2: Failing to provide MSDS/COA for chemical imports
👉 Consequence: Shipment detained for lack of safety documentation.
❌ Error 3: Not mentioning "for rubber/tire" in the description
👉 Consequence: Ambiguity in classification, leading to delays.
❌ Error 4: Ignoring REACH/TSCA compliance
👉 Consequence: Illegal import, fines, and shipment return.
✅ Correct Practice:
"Rubber Accelerator Preparation, for Tire Vulcanization, Chemical Name: [Specific Name], HS Code: 3812. MSDS Provided."
OR
"Organic Compound, Halogenated Sulfur Group, Pure Chemical, HS Code: 2904. COA Provided."
🎯 VII. Conclusion: Precise Classification, Smooth Clearance, Cost Efficiency!
🎯 Remember the Mnemonic:
🔹 "Prep for 38, Pure for 29, Chemicals Need Papers, TSCA/REACH Watch!"
🔹 "HS Code Determines Duty, Description Saves Time, Compliance Avoids Fines!"
📌 Pro Tip:
- Always verify the latest USITC and CBP rulings for HS 3812 and 2904, as tax rates can change.
- If tax information is "Error" in your system, contact a customs broker immediately for real-time verification.
- For chemical imports, REACH (EU) and TSCA (US) compliance is non-negotiable.
📣 Immediate Action:
📞 Contact a licensed customs broker + Provide MSDS/COA + Verify HS Code Pre-ruling
🚀 Ensure your rubber accelerators clear customs smoothly, avoid penalties, and optimize costs!
✨ Professional Clearance Starts with Accurate Classification!
💼 Every Detail Counts in Chemical Trade Compliance!
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.