Polymer Plastic Dust Protection Film
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3921110000 | 40.3% | CN | US | Official Doc |
| 3926909989 | 22.8% | CN | US | Official Doc |
| 3921190090 | 41.5% | CN | US | Official Doc |
| 3921121950 | 40.3% | CN | US | Official Doc |
| 3921905050 | 39.8% | CN | US | Official Doc |
AI Analysis
🛡️ Polymer Plastic Dust Protection Film (聚合物塑料防尘膜)
🌐 HS Code Reference & Clearance Guide | 2026 Latest Tariff Analysis | Strategic Customs Strategy
📌 I. Product Definition & Classification: Understanding "Dust Protection Films"
Polymer Plastic Dust Protection Films are essential industrial consumables used to protect surfaces (electronics, automotive parts, machinery) from dust, scratches, and environmental contamination during manufacturing, storage, and transportation. In international trade, classification depends heavily on the specific material composition and functional additives (e.g., light-blocking vs. transparent).
Key Distinction Points: * Transparent/General Purpose: Simple plastic films without specific light-blocking properties → Generally fall under Chapter 39 (Plastics and Articles Thereof). * Light-Blocking/Shading: Films specifically designed to block light, often involving PVC or specialized polymer blends → May fall under specific sub-headings for PVC Films or Other Plastic Films.
⚠️ Critical Classification Logic:
- If the film is purely a protective layer with no special optical properties → 3921.11.00.00 or 3926.90.99.89.
- If the film is explicitly "Light-Blocking" (遮光) or made of specific polymers like PVC → 3921.12.19.50 or 3921.90.50.50.
- If the material is described broadly as "Polymer Plastic" without specific PVC designation → 3921.19.00.90.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Cross-Reference)
Based on the provided data, here are the five potential HS Codes with their corresponding tax implications. Note that all entries include significant additional tariffs due to current trade policies (Section 301/122).
| HS Code | Product Description Summary | Tax Rate (Total) | Key Tax Components |
|---|---|---|---|
3921.11.00.00 |
Plastic dust protection film; basic plastic film category. | 40.3% | Base: 5.3% + Add. 25.0% + Sec 122: 10% |
3926.90.99.89 |
Plastic dust protection film; general plastic articles. | 22.8% | Base: 5.3% + Add. 7.5% + Sec 122: 10% |
3921.19.00.90 |
Polymer plastic film; other plastic films not specified elsewhere. | 41.5% | Base: 6.5% + Add. 25.0% + Sec 122: 10% |
3921.12.19.50 |
Polymer plastic light-blocking film; PVC characteristics. | 40.3% | Base: 5.3% + Add. 25.0% + Sec 122: 10% |
3921.90.50.50 |
Polymer plastic light-blocking film; other products. | 39.8% | Base: 4.8% + Add. 25.0% + Sec 122: 10% |
🔍 重点提醒 (Key Reminder):
- Lowest Tax Option:3926.90.99.89offers the lowest total tariff at 22.8%, as it attracts a lower additional duty (7.5% vs. 25%). However, this code applies to "other plastic articles" and may require strict justification that the product does not fit the specific "film" definitions of Chapter 39 Heading 3921.
- Standard Film Options: Codes under3921.xx(40.3%–41.5%) are more accurate for "films" but carry the maximum additional duty (25%).
- Section 122 Tariff: All codes include a 10% Section 122 tariff, which is non-negotiable for most Chinese-origin plastic films.
💰 III. 2026 Latest Tariff Rate Breakdown (Detailed Tax Clauses)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Time: Current rates apply (includes Section 301 & 122 adjustments)
🎯 1. 3921.11.00.00 —— Plastic Dust Protection Film (Basic)
| Item | Detail |
|---|---|
| Base Duty Rate | 5.3% (Ad Valorem) |
| Section 301 Additional Duty | +25.0% (Standard for most plastics from China) |
| Section 122 Tariff | +10.0% (Specific to certain plastic films/articles) |
| Total Tax Rate | 40.3% |
| Tax Calculation | CIF Value × 40.3% |
| De Minimis Exemption | ❌ Not Applicable |
| Legal Basis Path | HTSUS 3921.11.00.00 → USITC Footnote → Section 301 List 3/4 → Section 122 |
📌 Explanation:
- This code is for standard plastic films. The 25% additional duty is significant, making the total cost of duty nearly equal to the product's value.
- Section 122 applies because "dust protection films" often fall under specific plastic article exclusions or inclusions triggered by trade actions.
🎯 2. 3926.90.99.89 —— Other Plastic Articles (General)
| Item | Detail |
|---|---|
| Base Duty Rate | 5.3% (Ad Valorem) |
| Section 301 Additional Duty | +7.5% (Lower bracket for some "other" plastic articles) |
| Section 122 Tariff | +10.0% |
| Total Tax Rate | 22.8% |
| Tax Calculation | CIF Value × 22.8% |
| De Minimis Exemption | ❌ Not Applicable |
| Legal Basis Path | HTSUS 3926.90.99.89 → USITC Footnote → Section 301 List |
📌 Strategic Note:
- This is the most cost-effective option if the product can be legitimately classified as "other plastic articles" rather than "films."
- Risk: Customs may challenge this if the product clearly meets the definition of a "film" under Chapter 39, Heading 3921. Misclassification can lead to penalties.
🎯 3. 3921.19.00.90 —— Other Polymer Plastic Films
| Item | Detail |
|---|---|
| Base Duty Rate | 6.5% (Ad Valorem) |
| Section 301 Additional Duty | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tax Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption | ❌ Not Applicable |
| Legal Basis Path | HTSUS 3921.19.00.90 → USITC Footnote → Section 301 List 3/4 → Section 122 |
📌 Explanation:
- Used when the polymer is not PVC or does not fit other specific film categories.
- Highest Tax Rate: At 41.5%, this is the most expensive classification. Only use if no other code applies.
🎯 4. 3921.12.19.50 —— Polymer Light-Blocking Film (PVC)
| Item | Detail |
|---|---|
| Base Duty Rate | 5.3% (Ad Valorem) |
| Section 301 Additional Duty | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tax Rate | 40.3% |
| Tax Calculation | CIF Value × 40.3% |
| De Minimis Exemption | ❌ Not Applicable |
| Legal Basis Path | HTSUS 3921.12.19.50 → USITC Footnote → Section 301 List 3/4 → Section 122 |
📌 Explanation:
- Specifically for light-blocking films with PVC characteristics.
- Even though it's a specialized product, the additional duty remains at 25%.
🎯 5. 3921.90.50.50 —— Other Polymer Light-Blocking Films
| Item | Detail |
|---|---|
| Base Duty Rate | 4.8% (Ad Valorem) |
| Section 301 Additional Duty | +25.0% |
| Section 122 Tariff | +10.0% |
| Total Tax Rate | 39.8% |
| Tax Calculation | CIF Value × 39.8% |
| De Minimis Exemption | ❌ Not Applicable |
| Legal Basis Path | HTSUS 3921.90.50.50 → USITC Footnote → Section 301 List 3/4 → Section 122 |
📌 Explanation:
- For light-blocking films that do not fit PVC or other specific polymer definitions.
- Slightly lower base rate (4.8%) makes it 0.5% cheaper than3921.19.00.90, but still high.
🛠️ IV. Customs Clearance Practical Advice (Real-World Pitfall Guide)
✅ 1. Documentation Checklist (Mandatory)
| Document | Required | Notes |
|---|---|---|
| Product Specification Sheet | ✔️ | Must detail material (e.g., PE, PVC, PP), thickness, and whether it is "light-blocking" or "transparent." |
| Commercial Invoice | ✔️ | Clearly state "Polymer Plastic Dust Protection Film." Avoid vague terms like "Plastic Sheet." |
| Packing List | ✔️ | Include gross/net weight, dimensions, and quantity. |
| Certificate of Origin (CO) | ✔️ | Essential for verifying Chinese origin and applying correct Section 301/122 rates. |
| Third-Party Test Report | ✔️ | Optional but recommended to prove material composition (e.g., PVC vs. PE). |
| Letter of Explanation | ✔️ | If using 3926.90.99.89, provide a technical explanation why it is NOT a "film" under 3921. |
✅ 2. Declaration Tips (Key Mantras)
🔥 “Classify Accurately, Tax Varies Wildly!”
| Scenario | Correct Declaration | Incorrect Action |
|---|---|---|
| Transparent Dust Film | 3921.11.00.00 or 3926.90.99.89 |
Using 3921.19.00.90 (Higher tax) |
| Light-Blocking Film | 3921.12.19.50 or 3921.90.50.50 |
Declaring as "transparent film" to avoid Section 122 (High risk) |
| Unknown Polymer | 3921.19.00.90 |
Guessing code → Customs audit & penalties |
| Low-Value Shipment | Still subject to full duties | Assuming de minimis applies → 100% seizure risk |
✅ 3. Special Handling Cases
| Situation | Recommendation |
|---|---|
| OEM/Custom Film | Provide customer design specs. If "light-blocking" is a custom feature, declare accordingly. |
| Mixed Containers | Ensure dust films are not mixed with non-plastic items (e.g., metal parts) that might trigger different HS codes. |
| Section 122 Challenge | If Customs questions the 10% Section 122 tariff, provide technical data sheets showing the product falls under the specific plastic article definitions. |
| Dispute on 3926 vs 3921 | If using 3926.90.99.89 for lower tax, be prepared to prove the product is an "article" rather than a "film" (e.g., pre-cut shapes, non-standard rolls). |
🌍 V. Global Market Clearance Comparison (2026)
| Country/Region | Recommended HS Code | Tariff Rate (China Origin) | Certification Required | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3921.11.00.00 / 3926.90.99.89 |
22.8% – 41.5% | None specific | High Section 301 & 122 duties apply. |
| 🇨🇳 China | 3921.11.00.00 |
5.3% | CCC (if applicable) | No additional tariffs. |
| 🇪🇺 EU | 3920.99.00 |
6.5% | REACH, RoHS | No Section 301/122 equivalent. |
| 🇬🇧 UK | 3920.99.00 |
6.5% | UKCA | Post-Brexit tariffs apply. |
| 🇯🇵 Japan | 3921.11.00 |
8.0% | PSE (if electrical) | No additional trade tariffs. |
📌 Conclusion:
- USA is the most challenging market due to layered tariffs (Base + Section 301 + Section 122).
- EU and Japan offer much lower duty rates (~6.5%-8.0%) but require strict compliance with chemical regulations (REACH/RoHS).
- Strategy: For US shipments, consider if the product can be classified under3926.90.99.89(22.8%) instead of standard film codes (40%+) through careful technical documentation.
📌 VI. Common Errors & Pitfalls (Lessons Learned)
❌ Error 1: Using "Plastic Sheet" instead of "Film" in invoice description
👉 Consequence: Customs may reclassify to a higher tariff code → 25% additional duty penalty.
❌ Error 2: Assuming de minimis ($800) applies
👉 Consequence: 100% rejection. Section 122 and Section 301 tariffs exclude de minimis exemptions for Chinese-origin goods.
❌ Error 3: Misclassifying Light-Blocking Film as Transparent Film
👉 Consequence: Customs audit for undervaluation or misclassification → Fines + Back Taxes.
❌ Error 4: Ignoring Section 122 Tariff
👉 Consequence: Underpayment of 10% → Penalties + Interest.
✅ Correct Practice:
"Polymer Plastic Dust Protection Film, Transparent/Black, Roll Form, PVC/PE Material, for Industrial Use"
🎯 VII. Conclusion: Precision Saves Money!
🎯 Remember the Mantra:
🔹 "Base + 301 + 122 = High Cost!"
🔹 "Check Code 3926 vs 3921, Tax Differs by 20%!"
🔹 "No De Minimis for China, Plan Your Logistics!"
📌 Pro Tip:
If your polymer plastic film is shipped from Vietnam or Malaysia (not China-origin), you may avoid Section 301 and 122 tariffs entirely.
✅ Recommendation:
1. Apply for Advance Ruling if the classification is ambiguous (3921 vs 3926).
2. Consult a Customs Broker to verify if 3926.90.99.89 is defensible for your specific product.
3. Consider Supply Chain Diversification if tariffs exceed profit margins.
📣 Immediate Action:
📞 Contact a licensed customs broker + Provide product technical data + Request HS Code pre-classification.
🚀 Ensure smooth customs clearance, minimize tax liability, and protect your profit margins!
✨ Professional clearance starts with accurate classification!
💼 Every percentage point of tax saved is pure profit earned!
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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) — 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.