What is HS code 390311 used for?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
HS-6 · Subheading
390311
Styrene polymers; expansible polystyrene, in primary forms
Heading 3903 — Polymers of styrene, in primary forms
Chapter 39: Plastics and articles thereof
Plain-language overview
Use HS-6 390311 when importing or exporting styrene polymers, specifically expansible polystyrene in primary forms. This could include shipments of raw polystyrene pellets used in manufacturing insulation materials or packaging products.
This code is distinct from HS-6 390312, which covers non-expansible polystyrene. If you're dealing with standard polystyrene sheets or blocks, you'll need to classify those differently. Understanding the nuances between these codes is crucial for accurate customs declarations.
The HS-6 390311 line specifically covers expansible polystyrene, a lightweight material often used in packaging, insulation, and construction. It is typically shipped in bulk as granules or pellets, ready for further processing.
When considering this code, think about the end-use of the product. If your shipment consists of polystyrene beads intended for foam production, this is the correct classification. However, if you're shipping finished products made from polystyrene, other codes may apply.
Keywords & topics
Useful terms traders and brokers use for this HS-6 subheading.
expansible polystyrene · styrene polymers · HS code 390311 · polystyrene pellets · packaging materials · insulation products · bulk shipments · raw materials · EPS production · construction materials · polystyrene granules · foam production
Examples
Drawn from the official tariff wording for this HS-6 subheading. Always confirm against your published schedule and legal notes.
- Granules of expansible polystyrene for insulation panels
- Polystyrene beads used in packaging materials
- Bulk shipments of polystyrene pellets for foam production
- Expansible polystyrene used in construction as lightweight fill
- Raw materials for manufacturing expanded polystyrene (EPS) products
- Polystyrene granules for use in automotive parts
- Packaging foam made from expansible polystyrene
- Insulation blocks made from expanded polystyrene
Common questions
Frequent classification questions with short practical guidance.
How to classify expansible polystyrene?
Write down material, use, and product form first, then compare nearby lines before you lock the code.
Is styrene polymer the same as polystyrene?
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What products fall under HS-6 390311?
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Can I use HS-6 390311 for finished polystyrene products?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
What are the shipping forms for expansible polystyrene?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
How to differentiate between HS-6 390311 and 390312?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
What are common uses for expansible polystyrene?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Related topics
Common real-world topics that come up during code comparison.
How to classify expansible polystyrene for import
Check the exact product specs and destination-country tariff notes before finalizing the code.
Differences between HS-6 390311 and 390312
Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.
What is included in HS code 390311?
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Examples of products classified under HS-6 390311
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Best practices for shipping polystyrene pellets
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Understanding the uses of styrene polymers
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How to determine HS codes for packaging materials
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Guidelines for importing styrene polymers in bulk
Check the exact product specs and destination-country tariff notes before finalizing the code.
Questions & answers
For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.
- What types of products are classified under HS-6 390311?
- HS-6 390311 covers expansible polystyrene in primary forms, including granules or pellets used for insulation, packaging, and foam production.
- How do I know if my product falls under HS-6 390311?
- If your product is raw expansible polystyrene intended for further processing, such as in insulation or packaging, it likely falls under this code.
- Can I use HS-6 390311 for finished products made from polystyrene?
- No, HS-6 390311 is specifically for primary forms of expansible polystyrene. Finished products would need a different classification.
- What is the difference between HS-6 390311 and HS-6 390312?
- HS-6 390311 is for expansible polystyrene, while HS-6 390312 covers non-expansible polystyrene. The end-use and physical properties distinguish them.
- What packaging forms are typical for shipping HS-6 390311?
- Expansible polystyrene is usually shipped in bulk as granules or pellets, often in large bags or containers.
- Are there any specific regulations for importing HS-6 390311?
- Yes, check with your local customs authority for any specific regulations or tariffs that may apply to importing expansible polystyrene.
- What industries commonly use HS-6 390311 products?
- Industries such as construction, packaging, and manufacturing frequently use expansible polystyrene for insulation and protective packaging.
- How can I ensure accurate classification for customs?
- Review the product specifications and intended use carefully, and consult with a customs broker if unsure about the appropriate HS code.
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