橡胶助剂mbs 粉状
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 2930306000 | 38.7% | CN | US | Official Doc |
| 2930209020 | 38.7% | CN | US | Official Doc |
| 3812101000 | 41.5% | CN | US | Official Doc |
| 3812105000 | 40.0% | CN | US | Official Doc |
| 3812105000 | 40.0% | CN | US | Official Doc |
AI Analysis
⚗️ MBTS Powder (Rubber Accelerator)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional-Level Clearance Strategy
📌 I. Product Definition & Classification: Do You Really Understand "MBTS"?
MBTS (2-Mercaptobenzothiazole Disulfide) is a yellowish-white to light yellow powder, widely used as a primary or secondary accelerator in the rubber industry. It plays a critical role in the vulcanization process of natural rubber, synthetic rubber, and their blends. In international trade, its classification depends heavily on whether it is viewed as a standalone chemical compound or as a functional rubber additive.
Key Distinction Logic:
- As a Chemical Compound: Falls under Chapter 29 (Organic Chemicals), specifically sulfur-containing organic compounds or thiocarbamates.
- As a Functional Additive: Falls under Chapter 38 (Miscellaneous Chemical Products), specifically "Rubber Accelerators."
⚠️ Critical Classification Point:
- If declared as a pure chemical intermediate (focusing on molecular structure) →归入 2930 or 3812 based on chemical specificity.
- If declared as a finished rubber additive (focusing on end-use) → 归入 3812.10 (Rubber Accelerators).
- Note: The 2026 tariff landscape heavily penalizes misclassification between Chapter 29 and Chapter 38 due to additional punitive tariffs.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Application Scenario | Tax Logic |
|---|---|---|---|
2930.30.60.00 |
Organic sulfur compounds, other | MBTS as a sulfur-containing organic compound; fallback logic for chemical classification | ❌ High Risk (Fallback) |
2930.20.90.20 |
Thiocarbamates, other | MBTS as a sulfur/thiocarbamate compound used in rubber processing | ❌ High Risk (Chemical Specificity) |
3812.10.10.00 |
Rubber accelerators (Specific) | MBTS as a typical rubber accelerator; fits the functional definition directly | ✅ Preferred (Functional) |
3812.10.50.00 |
Rubber accelerators (Other) | MBTS as a specific chemical ingredient fitting the "other rubber accelerator" definition | ✅ Preferred (Alternative Functional) |
3812.10.50.00 |
Rubber accelerators (Other) | MBTS inferred by common knowledge as a rubber accelerator chemical composition | ✅ Preferred (Alternative Functional) |
🔍 Key Reminder:
-3812.10series is generally preferred for finished rubber additives because it reflects the end-use.
-2930series is risky because it treats MBTS as a raw chemical, triggering higher base duties or missing functional exemptions.
- Double-check: Ensure documentation clearly states "Rubber Accelerator" to support Chapter 38 classification.
💰 III. 2026 Latest Tariff Rate Details (Including Surtaxes & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: From November 10, 2025 (and subsequent imports)
🎯 1. 2930.30.60.00 —— Organic Sulfur Compounds (Fallback Chemical Classification)
| Item | Content |
|---|---|
| Base Duty | 3.7% (ad valorem) |
| Section 301 Surcharge | +25.0% (USITC Footnote related to China) |
| 122 Clause Surcharge | +10.0% (Specific China trade measure) |
| Total Duty Rate | 38.7% |
| Tax Calculation | CIF Value × 38.7% |
| De Minimis Exemption | ❌ Not Available (deny_de_minimis) |
| Legal Basis Path | Customs:2930.30.60.00 → USITC:301 → Section 122 |
📌 Explanation:
- This classification is considered a "fallback" if no specific rubber accelerator code applies.
- Total 38.7% is high due to the combination of base duty and two layers of punitive tariffs.
- Risk: Customs may challenge this if MBTS is clearly marketed as a rubber additive.
🎯 2. 2930.20.90.20 —— Other Thiocarbamates
| Item | Content |
|---|---|
| Base Duty | 3.7% |
| Section 301 Surcharge | +25.0% |
| 122 Clause Surcharge | +10.0% |
| Total Duty Rate | 38.7% |
| Tax Calculation | CIF Value × 38.7% |
| De Minimis Exemption | ❌ Not Available |
| Legal Basis Path | Customs:2930.20.90.20 → USITC:301 → Section 122 |
📌 Note:
- Same total rate as above.
- Classifying as a thiocarbamate is technically accurate chemically but may invite stricter scrutiny on chemical purity and intended use.
🎯 3. 3812.10.10.00 —— Rubber Accelerators (Specific)
| Item | Content |
|---|---|
| Base Duty | 6.5% |
| Section 301 Surcharge | +25.0% |
| 122 Clause Surcharge | +10.0% |
| Total Duty Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption | ❌ Not Available |
| Legal Basis Path | Customs:3812.10.10.00 → USITC:301 → Section 122 |
📌 Explanation:
- Although the base duty is higher (6.5% vs 3.7%), this is the most functionally accurate code.
- Total 41.5% is slightly higher than Chapter 29 options but carries less risk of reclassification penalties.
- Best for: Products explicitly labeled and used as "Rubber Accelerators."
🎯 4. 3812.10.50.00 —— Rubber Accelerators (Other)
| Item | Content |
|---|---|
| Base Duty | 5.0% |
| Section 301 Surcharge | +25.0% |
| 122 Clause Surcharge | +10.0% |
| Total Duty Rate | 40.0% |
| Tax Calculation | CIF Value × 40.0% |
| De Minimis Exemption | ❌ Not Available |
| Legal Basis Path | Customs:3812.10.50.00 → USITC:301 → Section 122 |
📌 Optimal Choice Analysis:
- This code offers a balance between chemical accuracy and functional clarity.
- Total 40.0% is lower than3812.10.10.00and similar to Chapter 29 options, but with higher classification confidence.
- Recommended for: MBTS powder where the supplier certifies it as a "Rubber Accelerator" but it doesn't fit the "specific" subheading of 10.10.
🛠️ IV. Customs Clearance Practical Advice (Battle-Tested Pitfall Avoidance Guide)
✅ 1. Documentation Checklist (None Are Optional)
| Document | Required | Description |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must state "MBTS," "2-Mercaptobenzothiazole Disulfide," "Rubber Accelerator," and CAS number (95-33-4). |
| ✅ Certificate of Analysis (COA) | ✔️ | Shows purity, physical form (powder), and compliance with industry standards. |
| ✅ Safety Data Sheet (SDS) | ✔️ | Critical for hazardous material declaration; confirm UN number if applicable. |
| ✅ Commercial Invoice | ✔️ | Must explicitly state: "Rubber Accelerator MBTS Powder for Use in Vulcanization" |
| ✅ Packing List | ✔️ | Detail net/gross weight, package type (drums/bags), and hazardous labeling if any. |
| ✅ Third-Party Test Report | ✔️ | ISO, ASTM, or industry-specific rubber testing reports. |
✅ 2. Declaration Tips (Key Mantra)
🔥 “Function over Formula: Declare ‘Accelerator’, Not Just ‘Chemical’!”
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| MBTS Powder | 3812.10.50.00 |
2930.30.60.00 → Risk of reclassification + penalties |
| MBTS as Raw Material | 3812.10.10.00 |
2930.20.90.20 → May trigger chemical scrutiny |
| Mixed with Other Additives | Check if it’s a mixture | If mixed, may fall under 3824 (Mixed Chemicals) → Higher Risk! |
✅ 3. Special Case Handling
| Situation | Handling Advice |
|---|---|
| OEM Private Label | Ensure the COA and SDS match the declared name; avoid generic "Rubber Chemical" labels. |
| Powder vs. Granules | Powder may require stricter dust control documentation; ensure packaging is sealable. |
| Hazardous Classification | MBTS is not typically a dangerous good for transport, but check local regulations; SDS must confirm non-hazardous status for IATA/IMDG. |
| Origin Marking | Ensure "Made in China" is clearly marked on packages; US customs strictly enforce country-of-origin labeling. |
🌍 V. Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Duty Rate | Certification | Note |
|---|---|---|---|---|
| 🇺🇸 USA | 3812.10.50.00 |
40.0% | SDS, COA | High punitive tariffs apply; avoid Chapter 29 if possible |
| 🇨🇳 China | 3812.10.10.00 |
~5% | ISO, GB Standard | Lower duties; no 301/122 clauses |
| 🇪🇺 EU | 3812.10.00 |
0-3% | REACH Registration | REACH compliance is mandatory for chemical imports |
| 🇮🇳 India | 3812.10.00 |
7.5% | BIS Certification | May require import license for chemicals |
| 🇧🇷 Brazil | 3812.10.00 |
~14% | INMETRO | High bureaucratic barriers; complex clearance |
📌 Conclusion:
- USA is the most tariff-sensitive market due to Section 301 and 122 clauses.
- EU requires REACH registration, which is a non-tariff barrier but critical for legal import.
- China offers the lowest duty but has strict quality control on imported rubber chemicals.
📌 VI. Common Errors & Pitfall Guide (Blood & Tears Lessons)
❌ Mistake 1: Declaring MBTS as "General Chemical" without specifying "Rubber Accelerator"
👉 Consequence: Customs may reclassify to 2930 or 3812.10.10.00 with additional penalties.
❌ Mistake 2: Using 2930.30.60.00 when 3812.10.50.00 is more accurate
👉 Consequence: Higher scrutiny on chemical structure; potential delay for lab testing.
❌ Mistake 3: Ignoring SDS/COA requirements
👉 Consequence: Cargo held at port; fines for incomplete documentation.
❌ Mistake 4: Failing to mark "Made in China" on individual packages
👉 Consequence: Seizure or forced re-export; violation of US CBP country-of-origin laws.
✅ Correct Approach:
"MBTS Rubber Accelerator Powder (2-Mercaptobenzothiazole Disulfide), CAS 95-33-4, for Use in Rubber Vulcanization, HS 3812.10.50.00"
🎯 VII. Conclusion: Professional Declaration Saves Money and Time!
🎯 Remember the Mantra:
🔹 "Function First: Rubber Accelerator = Chapter 38"
🔹 "40% is Better than 41.5% + Risk"
🔹 "SDS + COA + Clear Description = Smooth Clearance"
📌 Pro Tip:
- If importing into the USA, consider applying for an Advance Ruling from US Customs to confirm 3812.10.50.00 applicability.
- For EU imports, ensure REACH compliance is documented before shipment.
📣 Immediate Action:
📞 Contact a licensed customs broker + Provide SDS/COA + Apply for Pre-Ruling
🚀 Ensure your MBTS Powder clears customs quickly, legally, and cost-effectively!
✨ Professional Clearance Starts with Accurate Classification!
💼 Every percentage point of duty affects your bottom line!
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.