阻燃复合板
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3921905050 | 39.8% | CN | US | Official Doc |
| 3921190090 | 41.5% | CN | US | Official Doc |
| 7019905150 | 39.3% | CN | US | Official Doc |
| 5903902000 | 35.0% | CN | US | Official Doc |
| 5903102090 | 35.0% | CN | US | Official Doc |
AI Analysis
🛡️ Flame-Retardant Composite Panels (阻燃复合板)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional-Level Strategy
📌 I. Product Definition & Classification: Do You Really Understand "Flame-Retardant Composites"?
Flame-retardant composite panels are critical materials in construction, automotive, and electronics industries, designed to resist ignition and slow flame spread. In international trade, these materials are classified based on their base material, manufacturing process, and form factor.
The core distinction lies in the composition: * Plastic/Resin-Based Composites: Primarily polymer matrices with flame retardants. * Glass Fiber Composites: Reinforced with fiberglass and resin. * Textile/Fabric-Based Composites: Impregnated, coated, or laminated with plastic/rubber.
⚠️ Key Classification Criteria:
- If the base is plastic/polymer in sheet/plate form → Chapter 39
- If the base is glass fiber → Chapter 70
- If it is a textile/fabric impregnated/laminated with plastic → Chapter 59
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Applicable Scenario | Material Basis |
|---|---|---|---|
3921.90.50.50 |
Flame-retardant composite, plastic/polymer base, sheet/film form | General plastic-based fireproof panels, packaging materials | ✅ Plastic/Polymer |
3921.19.00.90 |
Flame-retardant composite, plastic/resin base, "catch-all" category | Other plastic sheets not specified elsewhere | ✅ Plastic/Resin |
7019.90.51.50 |
Flame-retardant composite, glass fiber + resin | Fiberglass-reinforced fireproof boards, electrical insulation | ✅ Glass Fiber + Resin |
5903.90.20.00 |
Flame-retardant composite, impregnated/coated/laminated fabric with plastic/rubber | Textile-based fireproof coatings, laminated fabrics | ✅ Textile + Plastic/Rubber |
5903.10.20.90 |
Flame-retardant composite, chemically treated/laminated textile/fiber | Other processed textile composites | ✅ Textile/Fiber |
🔍 Critical Reminder:
- Chapter 39 covers pure plastic/polymer composites. - Chapter 70 is exclusive to glass fiber reinforced composites. - Chapter 59 applies to textile/fabric materials that have been impregnated, coated, or laminated. - Misclassification Risk: Classifying a fiberglass panel as plastic will lead to incorrect duty assessment.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Surcharges & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Country of Origin: China (CN)
✅ Effective Date: From November 10, 2025 (including subsequent imports)
🎯 1. 3921.90.50.50 —— Flame-Retardant Composite (Plastic Base, Sheet Form)
| Item | Details |
|---|---|
| Base Tariff | 4.8% |
| Section 301 Surcharge | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tax Rate | 39.8% |
| Tax Calculation | CIF Value × 39.8% |
| De Minimis Exemption? | ❌ No (Subject to full tariff) |
| Legal Path | Base Tariff → Section 301 (USITC) → Section 122 (IEEPA) |
📌 Explanation:
- This code falls under plastic products. The total burden is high due to Section 301 (25%) and Section 122 (10%) on Chinese goods. - Total 39.8% makes this category expensive for importers.
🎯 2. 3921.19.00.90 —— Flame-Retardant Composite (Plastic Base, Catch-All)
| Item | Details |
|---|---|
| Base Tariff | 6.5% |
| Section 301 Surcharge | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tax Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption? | ❌ No |
| Legal Path | Base Tariff → Section 301 (USITC) → Section 122 (IEEPA) |
📌 Note:
- This is the "other" category for plastics. The higher base rate (6.5%) results in a higher total tax (41.5%). - Avoid this code if a more specific plastic classification (like 3921.90.50.50) applies, as it increases costs.
🎯 3. 7019.90.51.50 —— Flame-Retardant Composite (Glass Fiber)
| Item | Details |
|---|---|
| Base Tariff | 4.3% |
| Section 301 Surcharge | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tax Rate | 39.3% |
| Tax Calculation | CIF Value × 39.3% |
| De Minimis Exemption? | ❌ No |
| Legal Path | Base Tariff → Section 301 (USITC) → Section 122 (IEEPA) |
📌 Analysis:
- Glass fiber composites have the lowest base rate (4.3%) among the options, leading to the lowest total tax (39.3%). - Crucial: Ensure the product is indeed fiberglass-reinforced. If it's carbon fiber or other composites, this code may be rejected.
🎯 4. 5903.90.20.00 —— Flame-Retardant Composite (Textile/Fabric Impregnated)
| Item | Details |
|---|---|
| Base Tariff | 0.0% |
| Section 301 Surcharge | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tax Rate | 35.0% |
| Tax Calculation | CIF Value × 35.0% |
| De Minimis Exemption? | ❌ No |
| Legal Path | Base Tariff (0%) → Section 301 (USITC) → Section 122 (IEEPA) |
📌 Strategic Insight:
- This code has a 0% base tariff, making it the most cost-effective option (35.0%). - Requirement: The product must be a textile/fabric that has been impregnated, coated, or laminated with plastic or rubber. Pure plastic sheets do not qualify.
🎯 5. 5903.10.20.90 —— Flame-Retardant Composite (Chemically Treated Textile)
| Item | Details |
|---|---|
| Base Tariff | 0.0% |
| Section 301 Surcharge | +25.0% |
| > Section 122 Tariff | +10.0% |
| Total Tax Rate | 35.0% |
| Tax Calculation | CIF Value × 35.0% |
| De Minimis Exemption? | ❌ No |
| Legal Path | Base Tariff (0%) → Section 301 (USITC) → Section 122 (IEEPA) |
📌 Note:
- Similar to the previous code, this is for chemically treated or laminated textiles. - Total 35.0% is the lowest possible rate in this dataset. - Warning: If the "textile" is merely a thin coating on a plastic board, customs may reclassify it as Chapter 39, resulting in higher duties.
🛠️ IV. Customs Clearance Practical Advice (Battle-Tested Pitfall Guide)
✅ 1. Preparation Checklist (Mandatory)
| Document | Required | Description |
|---|---|---|
| ✅ Technical Data Sheet | ✔️ | Must specify base material (Plastic, Glass Fiber, or Textile) and flame retardant type. |
| ✅ Material Composition Certificate | ✔️ | Detailed % breakdown of resin, fiber, and additives. |
| ✅ Flame Retardancy Test Report | ✔️ | UL94, V-0 rating, or other relevant fire safety standards. |
| ✅ Product Photos (Clear) | ✔️ | Show cross-section to identify layer structure (e.g., fabric layer vs. solid plastic). |
| ✅ Commercial Invoice | ✔️ | Clearly state "Flame-Retardant Composite Panel" and HS Code. |
| ✅ Packing List | ✔️ | Confirm weight and dimensions. |
✅ 2. Declaration Strategy (Key Mantras)
🔥 "Base Material Dictates Chapter, Test Report Proves Content!"
| Scenario | Correct Declaration | Wrong Action |
|---|---|---|
| Solid Plastic Board | 3921.90.50.50 (39.8%) |
Declare as Textile → Risk of Rejection + Penalties |
| Fiberglass Board | 7019.90.51.50 (39.3%) |
Declare as Plastic → Higher Base Duty Risk |
| Fabric-Coated Panel | 5903.90.20.00 (35.0%) |
Declare as Plastic → Missed Savings |
| Laminated Textile | 5903.10.20.90 (35.0%) |
Declare as "Composite Material" vaguely → Delays |
✅ 3. Special Case Handling
| Situation | Recommendation |
|---|---|
| Hybrid Structure (e.g., Plastic core + Textile surface) | Provide cross-section photos. If textile layer is functional for flame retardancy, argue for Chapter 59 (35%). |
| High-Performance Fibers (e.g., Carbon Fiber) | Not covered in this list. May fall under Chapter 68 or Chapter 39. Seek Advance Ruling. |
| Small Samples | Even for samples, duties apply. Ensure invoice value is accurate. |
| OEM Custom Panels | Provide customer design specs. If the customer specifies "glass fiber," use 7019. |
🌍 V. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Estimated Duty (China Origin) | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 5903.90.20.00 |
35.0% | UL, NFPA | Lowest duty among options due to 0% base. |
| 🇺🇸 USA | 3921.90.50.50 |
39.8% | UL, NFPA | Higher duty for pure plastic. |
| 🇪🇺 EU | Varies by Chapter | ~4% - 6% (CE Required) | CE, RoHS | No Section 301/122 surcharges. |
| 🇨🇳 China | Varies | 0% - 5% (Import Duty) | CCC (if applicable) | Low internal duties. |
📌 Conclusion:
- USA imposes significant 301 (25%) + 122 (10%) surcharges on all these codes. - Chapter 59 (Textile-based) offers the lowest total duty (35.0%) because the base rate is 0%. - Chapter 39 (Plastic) has higher base rates, leading to 39.8% - 41.5%. - Chapter 70 (Glass Fiber) is in the middle at 39.3%.
📌 VI. Common Mistakes & Pitfall Guide (Lessons Learned)
❌ Mistake 1: Declaring a plastic sheet as textile to get 35% duty
👉 Consequence: Customs inspection reveals solid plastic → Reclassification + Penalty + Back Taxes.
❌ Mistake 2: Ignoring the Section 122 (10%) tariff in cost calculation
👉 Consequence: Profit margins disappear because 10% was not factored into the landed cost.
❌ Mistake 3: Providing only a "Flame Retardant" label without material composition
👉 Consequence: Customs cannot determine the correct Chapter (39, 59, or 70) → Hold/Exam.
❌ Mistake 4: Using "Composite Material" as a generic description
👉 Consequence: Vague descriptions lead to higher scrutiny. Must specify Base Material + Form.
✅ Correct Practice:
"Flame-Retardant Composite Panel, Model XYZ, Fiberglass-Reinforced Polyester, UL94 V-0 Certified, Cross-section included."
🎯 VII. Conclusion: Professional Declaration, Cost Savings, Efficiency!
🎯 Remember the Mantra:
🔹 "Textile Base = 35% (Best)", "Plastic Base = ~40% (Average)", "Glass Fiber = 39.3% (Good)"
🔹 "HS Code is Life, Base Rate is Key, 35% is the Target, Avoid 41.5%!"
📌 Pro Tip:
If your product can be legitimately classified as Chapter 59 (textile-based), ensure the textile component is significant and functional for flame retardancy. This can save 4.8% - 6.5% in total duties compared to plastic classifications.
📣 Immediate Action:
📞 Consult a customs broker + Provide material composition + Apply for Advance Ruling if structure is complex
🚀 Secure your 35.0% duty rate, ensure smooth clearance, and maximize profits!
✨ Professional Clearance Starts with Precise Classification!
💼 Every percentage point saved is pure profit!
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.