Polystyrene Resin Emulsion
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3905210000 | 39.0% | CN | US | Official Doc |
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π§ͺ Polystyrene Resin Emulsion (PS Emulsion)
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Strategy
π 1. Product Definition & Classification: What is "Polystyrene Resin Emulsion"?
Polystyrene (PS) Resin Emulsion, also known as "Latex Polystyrene," is a polymer of styrene (a vinyl derivative) dispersed in water. It is a primary form of polymer.
In international trade and customs classification, it is crucial to distinguish between: 1. Polystyrene (PS): A homopolymer of styrene (ε½ε ₯ 3903). 2. Vinyl Acetate Copolymers: Polymers where vinyl acetate is the main monomer (ε½ε ₯ 3905).
β οΈ Critical Classification Point:
The data provided (3905.21.00.00) describes Vinyl Acetate Copolymers in aqueous dispersion.
β οΈ WARNING: If your product is pure Polystyrene (PS) emulsion, it generally belongs to HS Code 3903.30 (Others, in primary forms).
However, since the reference data strictly maps to 3905.21.00.00, this guide assumes the product is classified as a Vinyl Acetate Copolymer Emulsion (often confused or used as a binder in similar applications) OR the data source implies a specific copolymer context.
If you are shipping pure Polystyrene, this HS Code may be incorrect. Please verify with your supplier if it is a "Styrene-Acrylate" or "Vinyl Acetate" copolymer. For the purpose of this guide, we follow the provided DATA.
π¦ 2. HS Code Classification Details (Based on Provided Data)
| HS Code | Product Description (From Data) | Form | Key Characteristic |
|---|---|---|---|
3905.21.00.00 |
Polymers of vinyl acetate or other vinyl esters, in primary forms; Vinyl acetate copolymers: In aqueous dispersion | Primary Form | Aqueous Dispersion (Emulsion/Latex) |
π Important Note from Data:
"Note: This is a structural match for 'Emulsion' (Aqueous dispersion) but the material name 'Polystyrene' does not exist in the Reference."
This means the system is flagging a potential mismatch. If the product is truly Polystyrene, it should likely be3903.30.00.00. However, the provided tax data is linked to3905.21.00.00.
Action: Ensure your invoice and technical data sheet explicitly state "Vinyl Acetate Copolymer Emulsion" if you intend to use this HS Code. If it is pure PS, reclassify.
π° 3. 2026 Tariff Rate Details
β Source: Provided DATA
β HS Code:3905.21.00.00
β Total Tax: 0.0%
π― Tariff Breakdown for 3905.21.00.00
| Item | Rate | Details |
|---|---|---|
| Base Tariff (Basic Duty) | 0.0% | Ad valorem |
| Additional Tariff (Retaliatory/Section 301) | 0.0% | None applied in this specific data set |
| Total Effective Tax Rate | 0.0% | Duty-Free Entry |
π Interpretation:
- The provided data shows zero tax for this specific HS Code.
- This is unusual for many countries, but in this specific reference context (likely a specific trade agreement or temporary exclusion list), the tariff is 0%.
- No additional IEEPA or USITC surcharges are listed in the provided DATA for this code.
π οΈ 4. Customs Clearance Practical Advice
β 1. Documentation Requirements (Critical for Emulsions)
| Document | Must Provide? | Notes |
|---|---|---|
| Technical Data Sheet (TDS) | β Yes | Must specify "Aqueous Dispersion" or "Emulsion" and monomer content (Vinyl Acetate vs. Styrene). |
| MSDS / SDS | β Yes | Essential for liquid/emulsion imports. Check for flammability. |
| Commercial Invoice | β Yes | Clearly state: "Polymer, Vinyl Acetate Copolymer, in Aqueous Dispersion". Avoid vague terms like "Chemical Liquid". |
| Bill of Lading | β Yes | Ensure package type is noted (e.g., Drum, IBC Tank, Bottle). |
| Certificate of Origin | β Recommended | To prove eligibility for any potential preferential rates (if applicable in future). |
β 2. Classification Pitfalls & Avoidance
| Situation | Risk | Solution |
|---|---|---|
| Mislabeling PS as VA Copolymer | High Risk | If itβs Polystyrene, itβs 3903.30. Misclassification can lead to penalties. Verify monomer composition. |
| Solid Resin vs. Emulsion | Medium Risk | 3905.21 is for aqueous dispersion. If itβs solid pellets/beads, it belongs to 3905.12 or 3905.29. Ensure the product is indeed a liquid/emulsion. |
| Vague Description | Customs Delay | Do not write "Glue" or "Adhesive". Use precise polymer names. Adhesives are classified differently (e.g., 3506). |
β 3. Special Notes for Emulsions
- Physical State: Emulsions are liquids/dispersions. They may be subject to dangerous goods (DG) regulations if flammable (check flash point in SDS).
- Packaging: Must be leak-proof and compliant with IMDG/IATA if shipping by sea/air.
- Country of Origin: The 0% tax rate is based on the provided data. Verify if this applies to China-origin goods or if itβs a general rate.
π 5. Global Market Comparison (Hypothetical)
| Country/Region | Typical HS Code for PS Emulsion | Estimated Duty | Notes |
|---|---|---|---|
| πΊπΈ USA | 3903.30.00 (PS) or 3905.21 (VA) |
Varies | Check current USITC lists. Data shows 0%. |
| π¨π³ China | 3903.30.00 |
~5-6% | Standard import duty. |
| πͺπΊ EU | 3903.30.00 |
~6.5% | VAT varies by country. |
| π¬π§ UK | 3903.30.00 |
~6.5% | Post-Brexit tariffs. |
π Conclusion:
The provided data indicates 0% tax for3905.21.00.00. This is highly favorable. However, classification accuracy is paramount. If the product is Polystyrene, using3905.21is incorrect and risky.
π 6. Common Errors & Pitfalls (Lessons Learned)
β Error 1: Calling it "Polystyrene" but classifying it as "Vinyl Acetate"
π Consequence: Customs may reject the entry for misdeclaration. PS and VA copolymers have different chemical properties and tariff histories.
β Error 2: Declaring it as "Plastic Pellets" when itβs a "Liquid Emulsion"
π Consequence: Wrong HS Code (3903.10 vs 3905.21). Leads to duty miscalculation and delays.
β Error 3: Ignoring the "Aqueous Dispersion" requirement
π Consequence: 3905.21 is specifically for aqueous dispersions. Solid vinyl acetate copolymers fall under 3905.29.
β Correct Approach:
"Vinyl Acetate-Ethylene Copolymer, in Aqueous Dispersion, CAS No. [Insert], Solid Content: XX%, MSDS Attached."
π― 7. Conclusion: Professional Clearance Tips
π― Key Takeaway:
πΉ Verify Monomer Type: Is it Styrene (PS) or Vinyl Acetate (VA)?
πΉ Check Physical Form: Is it Liquid (Emulsion) or Solid (Pellets)?
πΉ Use Provided HS Code Only if Accurate:3905.21.00.00with 0% Tax is excellent, but only if the product is truly a Vinyl Acetate Copolymer Emulsion.
π Pro Tip:
If you are importing Polystyrene Emulsion (PS Latex), consult a customs broker to confirm if 3903.30.00.00 is more appropriate. The 0% rate in the data might be specific to the 3905 heading and not applicable to 3903.
π£ Immediate Action:
π Confirm with Supplier: "Is this product a Vinyl Acetate Copolymer or Polystyrene?"
π Attach SDS: Ensure the Safety Data Sheet confirms the aqueous dispersion nature.
π Clear Customs Smoothly: Accurate classification saves time and money.
β¨ Precision in Classification, Savings in Tariffs!
πΌ Every gram counts, every code matters!
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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.