modified initiator
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3815905000 | 40.0% | CN | US | Official Doc |
| 3815190000 | 35.0% | CN | US | Official Doc |
| 382490 | 0.0% | CN | US | Official Doc |
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AI Analysis
π§ͺ Modified Initiator (Chemical Reaction Initiators & Catalytic Preparations)
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
π I. Product Definition & Classification: What is a "Modified Initiator"?
In the context of chemical trade, "Modified Initiator" typically refers to chemical substances designed to initiate, accelerate, or catalyze reactions. These products are critical in polymerization, curing processes, and industrial chemical synthesis.
Under international trade classification (specifically looking at the provided data constraints), these products fall under Chapter 38: Miscellaneous Chemical Products. The key distinction lies in whether the catalyst is "supported" (impregnated on a solid carrier like silica or alumina) or "unsupported" (general chemical preparations).
β οΈ Critical Distinction:
- Unsupported Catalysts/Initiators: General chemical mixtures not on a solid support. Often fall under "Other" categories (e.g., 3815.90).
- Supported Catalysts: Catalysts impregnated on a carrier material. Fall under "Supported catalysts" (e.g., 3815.19).
- Note on "Modified": The term "Modified" does not have a dedicated HS Code. It is a descriptive term that usually implies a chemical variation of standard initiators. Classification depends on the physical form (supported vs. unsupported) and intended use.
π¦ II. HS Code Classification Details (Based on Provided Data)
The provided data contains specific HS Codes and tax details for items that align with "Reaction initiators, reaction accelerators and catalytic preparations."
| HS Code | Product Description | Tax Rate (Total) | Tax Breakdown | Relevance to "Modified Initiator" |
|---|---|---|---|---|
| 3815.90.50.00 | Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included: Other: Other | 30.0% | Base: 5.0% Add-on: 25.0% |
β Highly Likely: Fits general "unsupported" chemical initiators/accelerators. |
| 3815.19.00.00 | Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included: Supported catalysts: Other | 0.0% | Base: 0.0% Add-on: 0.0% |
β Possible: If the "modified initiator" is supported on a carrier (e.g., silica, activated carbon). |
| 382490 | No relevant information found (Error/Empty Reference) | Error | Failed to retrieve tax information | β οΈ Avoid: This code is marked as "Failed to retrieve" in the source data. Do not use for reliable classification. |
π Key Insight from Data:
- The data explicitly lists 3815.90.50.00 and 3815.19.00.00 as valid classifications for "Reaction initiators...".
- "Modified Initiator" is not explicitly defined in the<Reference>, but chemically, it maps to the descriptions in 3815.90 (unsupported) or 3815.19 (supported).
- Do NOT use 382490 as it is flagged with "Error" and "Failed to retrieve tax information" in the provided data.
π° III. 2026 Latest Tariff Rate Details (Strictly Based on Provided Data)
β Source: Provided
<DATA>
β Scope: Only HS Codes with valid tax data in the input
π― 1. 3815.90.50.00 ββ Unsupported Reaction Initiators / Catalysts (Other)
| Item | Content |
|---|---|
| Product Description | Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included: Other: Other |
| Base Tariff | 5.0% |
| Add-on Tariff | 25.0% |
| Total Tariff | 30.0% |
| Tax Calculation | CIF Value Γ 30.0% |
| Applicability | General chemical initiators, peroxides, azo compounds, etc., not supported on a carrier. |
π Explanation:
- This code captures "Other" initiators that are not specifically listed elsewhere.
- The 25.0% add-on is significant. If the product is a standard chemical initiator (e.g., benzoyl peroxide, AIBN), this is likely the correct classification.
- Total Cost Impact: High. Ensure the HS Code is justified as "Unsupported."
π― 2. 3815.19.00.00 ββ Supported Catalysts (Other)
| Item | Content |
|---|---|
| Product Description | Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included: Supported catalysts: Other |
| Base Tariff | 0.0% |
| Add-on Tariff | 0.0% |
| Total Tariff | 0.0% |
| Tax Calculation | CIF Value Γ 0.0% |
| Applicability | Catalysts/Initiators impregnated on a solid support (e.g., metal on alumina, polymerization catalysts on silica). |
π Explanation:
- This code offers zero duty.
- If your "Modified Initiator" is technically a supported catalyst (e.g., Ziegler-Natta catalysts, hydrogenation catalysts on carbon), this is the optimal classification for cost savings.
- Key Proof Needed: Documentation showing the catalyst is fixed/impregnated on a carrier, not just a loose chemical powder.
π οΈ IV. Customs Clearance Practical Advice (Avoiding Pitfalls)
β 1. Document Preparation Checklist (Critical)
| Document | Required? | Purpose |
|---|---|---|
| Product Spec Sheet | βοΈ | Must clearly state: Physical Form (Liquid/Solid/Powder), Composition, and Intended Use. |
| Technical Data Sheet (TDS) | βοΈ | Critical to prove if the product is Supported vs. Unsupported. Look for terms like "Carrier," "Substrate," "Silica," "Alumina." |
| Safety Data Sheet (SDS) | βοΈ | For hazard classification and UN Number. |
| Certificate of Analysis (COA) | βοΈ | Confirms purity and identity. |
| Commercial Invoice | βοΈ | Description should match HS Code (e.g., "Supported Polymerization Catalyst" vs. "Chemical Initiator"). |
| Proof of Support | βοΈ | If claiming 3815.19.00.00 (0% tax), provide evidence that the active ingredient is impregnated on a solid carrier. |
β 2. Classification Strategy & Risk Management
| Scenario | Recommended HS Code | Tariff | Risk Level | Action |
|---|---|---|---|---|
| Loose Powder/Liquid Initiator (No carrier) |
3815.90.50.00 |
30.0% | π‘ Medium | Ensure description is "Unsupported Catalyst/Initiator." Avoid vague terms like "Chemical Mix." |
| Supported Catalyst (On Silica/Alumina/Carbon) |
3815.19.00.00 |
0.0% | π’ Low | Strongly Preferred if technically accurate. Must provide proof of support to justify 0% tax. |
| Ambiguous Product (No clear support info) |
Consult Specialist | N/A | π΄ High | Do NOT guess. Misclassification can lead to 30% duty + penalties. |
Using 382490 |
AVOID | Error | π΄ Critical | This code has failed tax retrieval. Using it will cause customs delays and rejections. |
β 3. Common Mistakes to Avoid
β Mistake 1: Calling it "Modified Initiator" without technical details.
π Fix: Use precise chemical names or standard trade names. Add "Supported" or "Unsupported" based on physical form.
β Mistake 2: Assuming all catalysts are 0% tax.
π Fix: Only Supported catalysts (3815.19) are 0% in this data. Unsupported ones (3815.90) are 30%.
β Mistake 3: Using 382490 because it looks generic.
π Fix: The provided data explicitly marks this as "Failed to retrieve tax information." Do not use.
π V. Global Market Comparison (Based on Provided Data Only)
| HS Code | Tax Rate (Total) | Key Condition | Recommendation |
|---|---|---|---|
3815.90.50.00 |
30.0% | Unsupported/General | Use if no solid support is present. |
3815.19.00.00 |
0.0% | Supported Catalyst | Best Option if product is supported. |
382490 |
Error | Data Missing | Do Not Use. |
π Conclusion:
- If your "Modified Initiator" is a supported catalyst, classify under 3815.19.00.00 for 0% duty.
- If it is a general chemical initiator (unsupported), classify under 3815.90.50.00 for 30% duty.
- Never use 382490 as it is flagged as an error in the source data.
π VI. Final Checklist for Smooth Clearance
- Determine Physical Form: Is it supported on a carrier?
- Choose HS Code:
- Yes β
3815.19.00.00(0% Tax) - No β
3815.90.50.00(30% Tax) - Avoid
382490: It is invalid in this dataset. - Prepare Technical Docs: Provide TDS/SDS to prove support status if claiming 0% tax.
π― Pro Tip:
"Supported equals Savings! Prove the carrier, get 0% duty."
"Unsupported equals 30%! Be precise, avoid penalties."
π£ Immediate Action:
π Confirm with your technical team: "Is the initiator supported on a solid carrier?"
π If Yes β Use 3815.19.00.00.
π If No β Use 3815.90.50.00.
π« If Uncertain β Do not use 382490. Consult a customs broker.
β¨ Professional Classification Saves Money!
πΌ Accurate HS Codes = Lower Duties = Higher Profit!
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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) β Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) β More specific grouping within the chapter
- Subheading (6 digits) β Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) β 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 β The standard duty rate applied to WTO members
- General rate β Applied to countries without trade agreements
- Trade remedy duties β 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.