Construction Flame Retardant
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3824997000 | 35.0% | CN | US | Official Doc |
| 3824999361 | 40.0% | CN | US | Official Doc |
| 2942003500 | 41.5% | CN | US | Official Doc |
| 3824880000 | 41.5% | CN | US | Official Doc |
| 2942005000 | 38.7% | CN | US | Official Doc |
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𧱠Construction Flame Retardants (Flame Retardants for Buildings & Fuels)
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Compliance Strategy
π 1. Product Definition & Classification: What Are "Construction Flame Retardants"?
Flame retardants are chemical substances added to materials (plastics, textiles, wood, fuel) to inhibit or delay the onset of fire. In international trade, they are primarily classified under Chapter 29 (Organic Chemicals) or Chapter 38 (Miscellaneous Chemical Products), depending on their chemical structure and specific application.
- Building Flame Retardants: Typically solid or liquid additives used in construction materials (e.g., insulation, coatings, wood treatments). Often classified as "Preparations" or "Unspecified Chemical Products."
- Fuel Flame Retardants: Additives used in liquid fuels to reduce flammability. Often classified based on their organic chemical composition (e.g., halogenated organics).
β οΈ Key Distinction:
- If the product is a pure organic compound with a defined chemical structure β Chapter 29 (e.g., 2942).
- If the product is a mixture, preparation, or unspecified chemical β Chapter 38 (e.g., 3824).
π¦ 2. HS Code Classification Details (2026 Latest Tariff Reference)
| HS Code | Product Description | Application Context | Material Attribute |
|---|---|---|---|
3824.99.70.00 |
Flame retardants for buildings; unlisted chemical preparations | Building insulation, coatings, wood treatments | Chemical preparations (misc.) |
3824.99.93.61 |
Flame retardants for buildings; chemical preparations | Building materials, general chemical mixtures | Chemical preparations (misc.) |
2942.00.35.00 |
Fuel flame retardants; organic compounds | Fuel additives, liquid fuel treatments | Organic compounds (misc.) |
3824.88.00.00 |
Fuel flame retardants; chemical preparations containing bromine | Fuel additives, bromine-based mixtures | Chemical preparations (misc.) |
2942.00.50.00 |
Fuel flame retardants; organic compounds | Fuel additives, specific organic structures | Organic compounds (misc.) |
π Key Reminder:
- Chapter 38 items are generally "preparations" or "mixtures" not elsewhere specified.
- Chapter 29 items are specific "organic chemicals" with defined molecular structures.
- Bromine-containing fuel retardants may fall under specific subheadings in Chapter 38.
π° 3. 2026 Latest Tariff Rate Breakdown (Including Surtaxes & Policy Surcharges)
β Applicable Country: United States (US)
β Origin: China (CN)
β Effective Date: From November 10, 2025 (including subsequent imports)
π― 1. 3824.99.70.00 ββ Flame Retardants for Buildings (Unspecified Chemical Preparations)
| Item | Content |
|---|---|
| Base Tariff | 0% (ad valorem) |
| Section 301 Surtax | +25% (from USITC Footnote) |
| Section 122 Surtax | +10% (Targeted surcharge for specific Chinese goods) |
| Total Tariff | 35.0% |
| Tax Calculation | CIF Value Γ 35% |
| De Minimis Exemption | β Not Available |
| Legal Basis Path | USITC:3824.99.70.00 β Section 301: 25% β Section 122: 10% |
π Explanation:
- This category is for unlisted chemical preparations used in buildings.
- Base rate is 0%, but significant surcharges apply.
- Total burden: 35%. Must be accounted for in pricing strategy.
π― 2. 3824.99.93.61 ββ Flame Retardants for Buildings (Specific Chemical Preparations)
| Item | Content |
|---|---|
| Base Tariff | 5.0% |
| Section 301 Surtax | +25% |
| Section 122 Surtax | +10% |
| Total Tariff | 40.0% |
| Tax Calculation | CIF Value Γ 40% |
| De Minimis Exemption | β Not Available |
| Legal Basis Path | USITC:3824.99.93.61 β Section 301: 25% β Section 122: 10% |
π Note:
- This subheading is for more specific chemical preparations.
- The base rate is higher (5%), leading to a higher total tariff (40%).
- Ensure precise description to avoid misclassification.
π― 3. 2942.00.35.00 ββ Fuel Flame Retardants (Organic Compounds)
| Item | Content |
|---|---|
| Base Tariff | 6.5% |
| Section 301 Surtax | +25% |
| Section 122 Surtax | +10% |
| Total Tariff | 41.5% |
| Tax Calculation | CIF Value Γ 41.5% |
| De Minimis Exemption | β Not Available |
| Legal Basis Path | USITC:2942.00.35.00 β Section 301: 25% β Section 122: 10% |
π Explanation:
- Classified as organic compounds (Chapter 29).
- Base rate is 6.5%, with surcharges adding 35%.
- Total burden: 41.5%. Higher than building flame retardants in some cases.
π― 4. 3824.88.00.00 ββ Fuel Flame Retardants (Bromine-Containing Preparations)
| Item | Content |
|---|---|
| Base Tariff | 6.5% |
| Section 301 Surtax | +25% |
| Section 122 Surtax | +10% |
| Total Tariff | 41.5% |
| Tax Calculation | CIF Value Γ 41.5% |
| De Minimis Exemption | β Not Available |
| Legal Basis Path | USITC:3824.88.00.00 β Section 301: 25% β Section 122: 10% |
π Note:
- Specifically for bromine-containing fuel additives.
- Base rate is 6.5%, same as other Chapter 29 items.
- Total burden: 41.5%. Consistent with other fuel flame retardants.
π― 5. 2942.00.50.00 ββ Fuel Flame Retardants (Other Organic Compounds)
| Item | Content |
|---|---|
| Base Tariff | 3.7% |
| Section 301 Surtax | +25% |
| Section 122 Surtax | +10% |
| Total Tariff | 38.7% |
| Tax Calculation | CIF Value Γ 38.7% |
| De Minimis Exemption | β Not Available |
| Legal Basis Path | USITC:2942.00.50.00 β Section 301: 25% β Section 122: 10% |
π Explanation:
- This is the lowest total tariff among fuel flame retardants.
- Base rate is 3.7%, making it more cost-effective than other fuel categories.
- Ensure the product strictly fits the "other organic compounds" description.
π οΈ 4. Customs Clearance Practical Advice (Pitfall Avoidance Guide)
β 1. Preparation Checklist (Required Documents)
| Document | Mandatory | Description |
|---|---|---|
| β Product Specification Sheet | βοΈ | Must include chemical composition, CAS numbers (if applicable), and concentration. |
| β Safety Data Sheet (SDS) | βοΈ | Essential for hazardous chemical classification and handling instructions. |
| β Product Photos (Label & Packaging) | βοΈ | Clear images of the product label showing HS Code, name, and origin. |
| β Commercial Invoice | βοΈ | Must clearly state "Flame Retardant for [Building/Fuel]" and CIF value. |
| β Certificate of Origin (CO) | βοΈ | Required to prove origin (China) and apply correct surtaxes. |
| β Packing List | βοΈ | Detail net/gross weight, dimensions, and number of packages. |
β 2. Declaration Tips (Key Mantra)
π₯ "Chemical Purity Defines Code, Mixture Goes to 38, Fuel vs. Building Split the Path!"
| Scenario | Correct Declaration | Incorrect Action |
|---|---|---|
| Pure Organic Chemical | 2942.xxxx.xxxx |
Misdeclare as mixture β Penalty |
| Chemical Mixture/Prep | 3824.xxxx.xxxx |
Misdeclare as pure chemical β Penalty |
| Building Application | 3824.99.70 or 3824.99.93.61 |
Misdeclare as fuel β Wrong Surtax |
| Fuel Application | 2942.00.35, 3824.88, or 2942.00.50 |
Misdeclare as building β Wrong Surtax |
β 3. Special Case Handling
| Scenario | Handling Advice |
|---|---|
| Bromine-Containing | Ensure classification under 3824.88.00.00 if itβs a preparation; 2942 if pure organic. |
| Custom Mixture | Provide detailed composition percentages. If >50% is one organic compound, consider 2942. If mixture, 3824. |
| OEM Custom Brand | Provide customer order + design specs. Avoid generic names like "Chemical A" to prevent delays. |
| Bulk vs. Retail | Bulk shipments may require additional safety certificates. Retail may need smaller SDS copies. |
π 5. Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification Requirements | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 3824.99.70.00 |
35.0% | EPA/TSCA Compliant | High surtaxes apply |
| πΊπΈ USA | 2942.00.50.00 |
38.7% | EPA/TSCA Compliant | Lowest fuel retardant rate |
| π¨π³ China | 3824.99.70.00 |
5.0% | GB Standards | No additional surtaxes |
| πͺπΊ EU | 3824.99.70.00 |
6.5% | REACH Registered | No US-style surtaxes |
| π¦πΊ Australia | 3824.99.70.00 |
5.0% | GHS Compliant | No additional surtaxes |
π Conclusion:
- USA imposes significant surtaxes (35-41.5%) on Chinese-origin flame retardants.
- EU, China, and Australia have much lower or zero surtaxes, making them more cost-effective markets.
- Re-chaining supply chains (e.g., through Vietnam or Mexico) may help avoid US surtaxes, but must comply with Rules of Origin.
π 6. Common Mistakes & Pitfall Guide (Lessons Learned)
β Mistake 1: Declaring a mixture as a pure organic compound
π Consequence: Misclassification, penalties, and potential seizure.
β
Fix: Provide detailed composition. If itβs a mixture, use 3824.
β Mistake 2: Not distinguishing Building vs. Fuel applications
π Consequence: Wrong HS Code, incorrect tariff, and delays.
β
Fix: Clearly state end-use in the commercial invoice.
β Mistake 3: Ignoring Bromine Content
π Consequence: Misclassification under 3824.88.00.00 vs. other 3824 subheadings.
β
Fix: If bromine-based, declare under 3824.88.00.00.
β Mistake 4: Using vague terms like "Fire Retardant" without specifics
π Consequence: Customs request for additional information, causing delays.
β
Fix: Use precise terms: "Organic Bromine Flame Retardant for Fuels" or "Building Insulation Flame Retardant Preparation."
π― 7. Conclusion: Precision in Classification, Savings in Compliance!
π― Remember the Mantra:
πΉ "Purity vs. Mixture, 29 vs. 38, Fuel vs. Building, Split the Path!"
πΉ "HS Code is Key, Tariff Difference is Huge, Misdeclaration Costs Thousands!"
π Pro Tip:
If your flame retardants are originating from Vietnam, Mexico, Thailand, or Malaysia, you may apply for IEEPA Exemption, reducing tariffs to 0-5%.
Recommend Advance Ruling application to avoid clearance risks.
π£ Immediate Action:
π Contact a professional customs broker + Provide Product Specs + Apply for HS Code Advance Ruling
π Ensure smooth clearance, efficient export, and maximized profit!
β¨ Professional Clearance Starts with Precise Classification!
πΌ Every cent of your cost deserves precise calculation!
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) 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.