Rubber Accelerator TTD
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 3812105000 | 40.0% | CN | US | 官方文档 |
| 2930202010 | 16.5% | CN | US | 官方文档 |
| 2930209020 | 38.7% | CN | US | 官方文档 |
| 3812101000 | 41.5% | CN | US | 官方文档 |
| 3824992500 | 41.5% | CN | US | 官方文档 |
商品图片
AI分析
⚗️ Rubber Accelerator TTD (Thiram Disulfide)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition & Classification: Do You Really Understand "Rubber Accelerator"?
Rubber Accelerator TTD (commonly referring to Thiram or Tetramethylthiuram Disulfide) is a critical chemical additive used in the vulcanization of rubber. In international trade, it is classified based on its chemical nature (organic sulfur compound) and its primary function (rubber processing aid).
According to the provided data, TTD can be classified under two main categories depending on whether it is viewed as a specific chemical substance or a prepared rubber additive mixture. This distinction significantly impacts the tariff structure.
⚠️ Key Distinction Point:
- If TTD is declared as a pure chemical substance (thio-carbamate derivative) → Chapter 29 (Organic Chemicals)
- If TTD is declared as a prepared mixture/additive for rubber processing → Chapter 38 (Miscellaneous Chemical Products)
- Note: The specific physical form (e.g., paste/powder) and purity level determine the exact sub-heading.
📦 II. HS Code Classification Details (Based on Provided Data)
| HS Code | Product Description | Application Scenario | Classification Logic |
|---|---|---|---|
2930.20.20.10 |
Organic sulfur compounds (specifically Thiocarbamates) | Pure TTD chemical substance; rubber processing aid | Chemical Material: Matches "thiocarbamate" structure. |
2930.20.90.20 |
Other organic sulfur compounds, mainly for rubber treatment | TTD used specifically for rubber vulcanization | Chemical Material: Matches "organic sulfur" + "rubber treatment purpose". |
3812.10.10.00 |
Rubber Vulcanization Accelerators (Specific) | TTD as a standard rubber accelerator additive | Functional Use: Matches "Rubber Accelerator" exactly. |
3812.10.50.00 |
Rubber Vulcanization Accelerators (Other/General) | TTD as a general rubber chemical | Functional Use: Matches "Rubber Accelerator" usage. |
3824.99.25.00 |
Prepared Binders/Preparations for Foundry Molds/Other Chemical Mixtures | TTD in paste form; chemical mixture/additive | Form/Mixture: Matches "Additive", "Paste", "Chemical Mixture". |
🔍 Key Reminder:
- Chapter 29 codes (2930...) focus on the chemical structure (thio-carbamates).
- Chapter 38 codes (3812...,3824...) focus on the industrial application (rubber processing) or physical mixture state.
- Misclassification can lead to massive tax differences (from 16.5% to 41.5%).
💰 III. 2026 Latest Tariff Rate Breakdown (Including Surcharges & Policy Surcharges)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Time: 2025/2026 (Includes Section 301 & IEEPA tariffs)
🎯 1. 2930.20.20.10 —— Organic Sulfur Compounds (Thiocarbamates)
(Best Case Scenario for Pure Chemicals)
| Item | Details |
|---|---|
| Base Duty Rate | 6.5% |
| Section 301 Surcharge | 0.0% (No additional Section 301 tax) |
| IEEPA Surcharge (122 Section) | +10% |
| Total Tax Rate | 16.5% |
| Tax Calculation | CIF Value × 16.5% |
| De Minimis Eligibility | ❌ No (High-risk category for customs) |
| Legal Basis | USITC:2930.20.20.10 → IEEPA:122 |
📌 Explanation:
- This is the most favorable tariff rate among all options.
- It avoids the 25% Section 301 tariff, applying only the 10% IEEPA surcharge.
- Condition: Must prove TTD is a pure organic chemical (thiocarbamate class).
🎯 2. 2930.20.90.20 —— Other Organic Sulfur Compounds (For Rubber Treatment)
| Item | Details |
|---|---|
| Base Duty Rate | 3.7% |
| Section 301 Surcharge | +25% |
| IEEPA Surcharge (122 Section) | +10% |
| Total Tax Rate | 38.7% |
| Tax Calculation | CIF Value × 38.7% |
| De Minimis Eligibility | ❌ No |
| Legal Basis | USITC:2930.20.90.20 → Section 301:25% → IEEPA:10% |
📌 Explanation:
- Although the base rate is low (3.7%), the 25% Section 301 tariff makes it expensive.
- Condition: Used specifically for rubber treatment but classified under "Other Organic Sulfur Compounds".
🎯 3. 3812.10.10.00 —— Rubber Vulcanization Accelerators
| Item | Details |
|---|---|
| Base Duty Rate | 6.5% |
| Section 301 Surcharge | +25% |
| IEEPA Surcharge (122 Section) | +10% |
| Total Tax Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Eligibility | ❌ No |
| Legal Basis | USITC:3812.10.10.00 → Section 301:25% → IEEPA:10% |
📌 Explanation:
- Directly matches the functional name "Rubber Accelerator".
- High Risk: Subject to both 25% Section 301 and 10% IEEPA tariffs.
🎯 4. 3812.10.50.00 —— Other Rubber Vulcanization Accelerators
| Item | Details |
|---|---|
| Base Duty Rate | 5.0% |
| Section 301 Surcharge | +25% |
| IEEPA Surcharge (122 Section) | +10% |
| Total Tax Rate | 40.0% |
| Tax Calculation | CIF Value × 40.0% |
| De Minimis Eligibility | ❌ No |
| Legal Basis | USITC:3812.10.50.00 → Section 301:25% → IEEPA:10% |
📌 Explanation:
- Similar to the previous code, classified as a general rubber accelerator.
- Total Cost: 40% is significantly higher than the 16.5% option.
🎯 5. 3824.99.25.00 —— Other Chemical Mixtures/Preparations
| Item | Details |
|---|---|
| Base Duty Rate | 6.5% |
| Section 301 Surcharge | +25% |
| IEEPA Surcharge (122 Section) | +10% |
| Total Tax Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Eligibility | ❌ No |
| Legal Basis | USITC:3824.99.25.00 → Section 301:25% → IEEPA:10% |
📌 Explanation:
- Used if TTD is sold as a paste or complex mixture rather than a pure chemical.
- Same High Tax: 41.5% due to Section 301 and IEEPA surcharges.
🛠️ IV. Customs Clearance Practical Advice (Real-World Pitfall Guide)
✅ 1. Preparation Checklist (Essential Documents)
| Document | Required? | Description |
|---|---|---|
| ✅ Chemical Structure Diagram | ✔️ Critical | Proves TTD is a thiocarbamate (for 2930.20.20.10). |
| ✅ Certificate of Analysis (COA) | ✔️ | Shows purity level (e.g., ≥98% pure vs. mixture). |
| ✅ Product Description | ✔️ | Must clearly state "Tetramethylthiuram Disulfide" or "Thiram". |
| ✅ Safety Data Sheet (SDS) | ✔️ | Classifies hazard level and handling requirements. |
| ✅ Commercial Invoice | ✔️ | Must match HS Code description exactly. |
| ✅ Packaging Details | ✔️ | Specify if powder, granule, or paste. |
⚠️ Note: If declaring under Chapter 29, you must provide chemical evidence. Vague descriptions like "Rubber Accelerator" will force customs to classify under Chapter 38, triggering higher taxes.
✅ 2. Declaration Tips (Key Mantra)
🔥 "Pure Chemicals Go to 29, Mixtures Go to 38, Name Specifics Save Cash!"
| Scenario | Correct Declaration | Error to Avoid |
|---|---|---|
| Pure TTD Powder | 2930.20.20.10 (16.5%) | Calling it "Rubber Additive" → 3812 (41.5%) |
| TTD Paste/Mixture | 3824.99.25.00 (41.5%) | Trying to claim as pure chemical without proof |
| Generic "Accelerator" | 3812.10.10.00 (41.5%) | Vague name leads to higher scrutiny & default high rate |
✅ 3. Special Considerations
| Situation | Handling Advice |
|---|---|
| OEM/Custom Mixture | If TTD is blended with other carriers, it cannot use Chapter 29 codes. Must use Chapter 38. |
| High Purity (>98%) | Provide lab reports to justify Chapter 29 classification. |
| Low Purity/Mixed | Prepare for Chapter 38 classification (40-41.5% tax). |
| Origin Verification | Ensure Certificate of Origin states "China" to confirm applicability of Section 301 & IEEPA. |
🌍 V. Global Market Clearance Comparison (2026 Update)
| Country/Region | Recommended HS Code | Tariff Rate (China Origin) | Key Certification | Remarks |
|---|---|---|---|---|
| 🇺🇸 USA | 2930.20.20.10 |
16.5% (Min) / 41.5% (Max) | EPA/TSCA | Critical: Choose 2930 if pure. |
| 🇨🇳 China | 2930.20.20.10 |
6.5% | None | No Section 301/IEEPA taxes. |
| 🇪🇺 EU | 2930.20.20 |
5-6% | REACH Registration | No punitive surcharges. |
| 🇯🇵 Japan | 2930.20.20 |
3-5% | JIS Standard | Low base rate. |
📌 Conclusion:
- USA is the most complex market due to layered tariffs.
- Optimization Strategy: For pure TTD, always aim for2930.20.20.10to save ~25% in duties compared to Chapter 38 codes.
- Documentation is Key: Without chemical proof, customs will default to the higher Chapter 38 rate.
📌 VI. Common Mistakes & Pitfall Guide (Lessons Learned)
❌ Mistake 1: Declaring "Rubber Accelerator TTD" without chemical details.
👉 Consequence: Customs defaults to 3812.10.10.00 → 41.5% tax.
✅ Fix: Declare as "Tetramethylthiuram Disulfide (Pure Chemical)".
❌ Mistake 2: Ignoring the "Paste" form.
👉 Consequence: If sold as paste, it’s a mixture. Misclassifying as pure chemical leads to seizure/penalties.
✅ Fix: Use 3824.99.25.00 for pastes/mixtures.
❌ Mistake 3: Assuming all "Accelerators" are taxed equally.
👉 Consequence: Missed opportunity to use 2930.20.20.10 (16.5%) instead of 3812 (41.5%).
✅ Fix: Analyze chemical composition first.
🎯 VII. Conclusion: Professional Classification Saves Money!
🎯 Remember the Mantra:
🔹 "Pure = Chapter 29 (16.5%), Mixed = Chapter 38 (41.5%)"
🔹 "Chemical Name is King, Generic Name is King of High Taxes!"
🔹 "Save 25% by Proving Purity, Don't Let Customs Decide for You!"
📌 Pro Tip:
If your TTD is pure (>98%), insist on HS Code 2930.20.20.10 and provide a Certificate of Analysis. This single decision can save you 25% in duties.
For mixtures/pastes, prepare for 41.5% and ensure proper hazard labeling.
📣 Immediate Action:
📞 Consult Customs Broker: Confirm if your specific TTD product qualifies as a "pure chemical".
📄 Prepare Chemical Documentation: SDS, COA, Structure Diagram.
🚀 Declare Accurately: Avoid vague terms like "Additive". Use precise chemical names.
✨ Professional Clearance Starts with Accurate Classification!
💼 Every Percent of Duty Saved is Pure Profit!
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