lead containing anti explosion agent microemulsion
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3815902000 | 37.8% | CN | US | Official Doc |
| 3815905000 | 40.0% | CN | US | Official Doc |
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π§ͺ Anti-Explosion Agent Microemulsion (Lead-Containing)
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
π I. Product Definition & Classification: Do You Really Understand "Anti-Explosion Microemulsion"?
An Anti-Explosion Agent Microemulsion is a specialized chemical preparation used to inhibit ignition sources, suppress sparks, or reduce static electricity hazards in industrial environments (e.g., mining, petroleum, chemical plants).
The critical classification determinant here is the composition: * "Microemulsion": Indicates a thermodynamically stable, transparent dispersion of oil and water, stabilized by surfactants. It is a "preparation" rather than a pure chemical substance. * "Lead-Containing": The presence of lead (Hg or Mo are listed in the data, but Lead/Pb is an inorganic substance). * "Reaction Initiators/Accelerators/Catalytic Preparations": This is the overarching Chapter 38 heading for chemical preparations not elsewhere specified.
According to the provided data, this product falls under Chapter 38: Miscellaneous Chemical Products, specifically Heading 3815: Reaction initiators, reaction accelerators and catalytic preparations.
β οΈ Key Distinction:
- If the product is a pure chemical element (unlikely for an anti-explosion agent) or a specific defined compound not listed as a "preparation," it might fall elsewhere.
- However, as a mixed preparation containing lead and other components (surfactants, solvents) for a specific technical use (anti-explosion), it is classified as a catalytic/anti-explosion preparation.
- The data provided restricts us to two specific subheadings under 3815.90.
π¦ II. HS Code Classification Details (Based on Provided Data)
The data provides two possible HS codes under 3815.90. The distinction lies in whether the preparation consists wholly of inorganic substances.
| HS Code | Product Description | Applicability to Lead-Containing Microemulsion |
|---|---|---|
3815.90.20.00 |
Consisting wholly of inorganic substances: Of mercury or of molybdenum | β Likely Incorrect This code is extremely specific: it requires the product to be wholly inorganic AND composed specifically of Mercury (Hg) or Molybdenum (Mo). Lead (Pb) is NOT listed. Furthermore, a microemulsion typically contains organic surfactants/solvents, meaning it is not "wholly inorganic." |
3815.90.50.00 |
Other | β
Most Likely Correct Since the product does not fit the narrow criteria of 3815.90.20.00 (because it contains Lead, not Hg/Mo, and is likely not wholly inorganic), it falls into the "Other" category. This is the residual category for all other reaction initiators, accelerators, or catalytic preparations not specified elsewhere. |
π Important Note:
The data provided does not include a specific HS code for "Lead" in Chapter 3815.90. It only lists Mercury/Molybdenum for the inorganic subcategory. Therefore, any preparation containing Lead that does not fit the "Mercury/Molybdenum" exception must fall under "Other" (3815.90.50.00).
π° III. 2026 Latest Tariff Rate Breakdown (Based on Provided Data)
β Source Data Constraint: Only two HS codes are provided in the
<DATA>section.
β Tax Details: As per the provided JSON data.
π― 1. 3815.90.20.00 ββ Consisting wholly of inorganic substances: Of mercury or of molybdenum
| Item | Content |
|---|---|
| Description | Reaction initiators, reaction accelerators and catalytic preparations... Of mercury or of molybdenum |
| Basic Tariff | 0.0% |
| Additional Tariff | 0.0% |
| Total Tax | 0.0% |
| Applicability to Lead Product | β Not Applicable This code is reserved for Mercury or Molybdenum-based inorganic preparations. It does not apply to Lead-based products. |
π Interpretation:
- If your product mistakenly claims to be "Mercury-based" or "Molybdenum-based" and "wholly inorganic," it would qualify for 0% tax.
- Do not use this code for Lead-containing products. It is a misclassification and may lead to customs penalties.
π― 2. 3815.90.50.00 ββ Other
| Item | Content |
|---|---|
| Description | Reaction initiators, reaction accelerators and catalytic preparations... Other |
| Basic Tariff | 5.0% |
| Additional Tariff | 25.0% |
| Total Tax | 30.0% |
| Applicability to Lead Product | β
Correct Classification Since the product contains Lead (not Hg/Mo) and is a microemulsion (likely not wholly inorganic), it falls under "Other." |
π Interpretation:
- Total Tax Rate: 30.0% (5% Base + 25% Additional).
- This is the only applicable rate in the provided data for a Lead-containing anti-explosion agent.
- The "Additional Tariff" of 25% suggests this may be subject to specific trade measures (e.g., Section 301 tariffs if importing into the US from China, or similar punitive tariffs in other jurisdictions, though the data does not specify the country).
π οΈ IV. Customs Clearance Practical Advice (Avoiding Pitfalls)
β 1. Preparation of Documents (Mandatory)
| Document | Required | Explanation |
|---|---|---|
| β Safety Data Sheet (SDS) | βοΈ | Must clearly list Lead (Pb) as a component. This confirms it is not Hg/Mo, directing it to 3815.90.50.00. |
| β Product Formula/Composition | βοΈ | Prove it is a "microemulsion" (preparation) and not a pure inorganic salt. This justifies exclusion from 3815.90.20.00 (which requires "wholly inorganic"). |
| β Certificate of Origin | βοΈ | Determines eligibility for any potential exemptions (though none are listed in the data for this HS code). |
| β Commercial Invoice | βοΈ | Description must read: "Anti-explosion Agent Microemulsion, Lead-Containing, For Industrial Use" |
| β Packaging List | βοΈ | List net/gross weights accurately. |
β 2. Declaration Tips (Key Mnemonics)
π₯ "Lead is not Mo or Hg, so it goes to 'Other'!"
π₯ "Microemulsion is a preparation, not a pure inorganic substance!"
| Situation | Correct Declaration | Wrong Declaration | Consequence |
|---|---|---|---|
| Lead-based Anti-Explosion Agent | 3815.90.50.00 |
3815.90.20.00 |
Audit Risk: Customs may reject because Lead β Mercury/Molybdenum. |
| Wholly Inorganic Molybdenum Catalyst | 3815.90.20.00 |
3815.90.50.00 |
Overpay Tax: You pay 30% instead of 0%. |
| Pure Lead Chemical (Not a preparation) | Not in Data | 3815.90.50.00 |
Misclassification: Pure chemicals may fall under Chapter 28 (Inorganic Chemicals), not Chapter 38. |
β 3. Special Handling for Lead-Containing Products
| Issue | Recommendation |
|---|---|
| Hazardous Goods Declaration | Lead is toxic. Declare as hazardous material if required by local regulations (e.g., UN 3077 or similar). Provide MSDS. |
| Environmental Compliance | Ensure the product meets import country standards for heavy metals (e.g., RoHS, REACH). |
| Misclassification Risk | Do NOT attempt to classify as 3815.90.20.00 to save tax. The description "Of mercury or of molybdenum" is strict. Lead does not qualify. |
π V. Global Market Comparison (Based on Provided Data Only)
| Country/Region | HS Code | Tariff | Notes |
|---|---|---|---|
| Data Source Jurisdiction | 3815.90.50.00 |
30.0% | 5% Base + 25% Additional. This is the only applicable rate for Lead-containing microemulsions in the provided data. |
| Data Source Jurisdiction | 3815.90.20.00 |
0.0% | Not applicable to Lead. Only for Hg/Mo. |
π Conclusion:
- For Lead-Containing Anti-Explosion Agent Microemulsion, the Total Tax is 30.0%.
- There is no 0% option available in the provided data for Lead.
- Plan for the 30% tax burden in your cost calculations.
π VI. Common Errors & Pitfalls (Lessons Learned)
β Error 1: Claiming the product is "Inorganic" to qualify for 3815.90.20.00.
π Result: Rejection. Microemulsions contain surfactants (often organic) and are not "wholly inorganic." Also, Lead is not Mercury/Molybdenum.
β Error 2: Assuming "Anti-explosion" means it's not a "catalytic preparation."
π Result: Misclassification. Chapter 3815 includes "catalytic preparations" and related preparations. Anti-explosion agents are often classified here if they don't fit elsewhere.
β Error 3: Ignoring the "Lead" component.
π Result: If you declare it without specifying Lead, customs may classify it differently or penalize for incomplete disclosure of hazardous materials.
β Correct Approach:
Declare as: "Anti-explosion Agent Microemulsion, Lead-Containing, Preparation Not Elsewhere Specified"
HS Code:3815.90.50.00
Tax: 30.0%
π― VII. Conclusion: Professional Declaration Saves Money!
π― Key Takeaway:
πΉ Lead β Mercury/Molybdenum. Do not use
3815.90.20.00.
πΉ Microemulsion = Preparation. Use "Other" (3815.90.50.00).
πΉ Total Tax = 30.0%. Budget accordingly.
π Tip:
If you are importing into a jurisdiction with Section 301 tariffs (e.g., US-China trade), the 25% additional tariff is significant. Consider:
1. Pre-ruling: Apply for an advance classification ruling from customs.
2. Supply Chain Check: Are there any exemptions available for specific industrial uses? (Not listed in data, but worth checking local laws).
3. Accurate SDS: Ensure your Safety Data Sheet clearly states "Lead" to avoid confusion with Hg/Mo.
π£ Action Item:
π Contact Customs Broker: Confirm if "Anti-Explosion Agent" is strictly under 3815 or if there is a more specific 8-digit code in your local tariff book.
π Declare Accurately: Use3815.90.50.00and be prepared for the 30% tax.
β¨ Professional Clearance, Starting from Accurate Classification!
πΌ Every percent of tax counts! Don't let misclassification cost you!
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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.