What is HS code 391310 used for?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
HS-6 · Subheading
391310
Polymers, natural; alginic acid, its salts and esters, in primary forms
Heading 3913 — Natural polymers (e.g. alginic acid) and modified natural polymers (e.g. hardened proteins, chemical derivatives of natural rubber), n.e.c. or included, in primary forms
Chapter 39: Plastics and articles thereof
Plain-language overview
Use HS-6 391310 when importing or exporting natural polymers such as alginic acid in primary forms. For example, if you're shipping alginic acid powder for use in food or pharmaceuticals, this code applies.
This HS-6 code specifically covers alginic acid and its salts and esters. It differs from HS-6 391320, which pertains to other natural polymers like cellulose derivatives. Understanding these distinctions is crucial for proper classification.
Natural polymers like alginic acid are often used in food processing, cosmetics, and pharmaceuticals due to their thickening and stabilizing properties. If you're dealing with alginic acid in its raw form, this is the code to use.
When considering shipments, note that alginic acid might be packed in bulk containers or smaller bags. Ensure your documentation accurately reflects the product's form to avoid customs delays.
Keywords & topics
Useful terms traders and brokers use for this HS-6 subheading.
alginic acid imports · natural polymers shipping · primary forms of alginic acid · alginic acid applications · customs alginic acid · alginic acid export code · natural polymer classification · polymers in food industry · alginic acid regulations · sodium alginate products · alginic acid packaging · modified natural polymers · chemical derivatives of natural rubber · alginic acid in pharmaceuticals · natural polymers in cosmetics · alginic acid forms · alginic acid in research
Examples
Drawn from the official tariff wording for this HS-6 subheading. Always confirm against your published schedule and legal notes.
- Alginic acid powder for food thickening agents
- Alginic acid used in pharmaceutical formulations
- Bulk shipments of sodium alginate for industrial use
- Alginic acid in small retail packages for cosmetic products
- Natural polymer extracts for laboratory research
- Alginic acid solutions for medical applications
- Food-grade alginate used in molecular gastronomy
- Alginic acid as a stabilizer in dietary supplements
Common questions
Frequent classification questions with short practical guidance.
How to classify alginic acid for customs?
Write down material, use, and product form first, then compare nearby lines before you lock the code.
Is alginic acid a natural polymer?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
What are the applications of alginic acid?
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How do I ship alginic acid internationally?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Are there specific regulations for alginic acid imports?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
What packaging is required for alginic acid?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Can I use HS-6 391310 for sodium alginate?
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 alginic acid for import
Check the exact product specs and destination-country tariff notes before finalizing the code.
requirements for shipping alginic acid
Use this as a checklist topic, then confirm legal requirements with your broker or customs advisor.
alginic acid uses in food and pharmaceuticals
Use this topic to narrow your shortlist, then validate the final code against legal wording.
differences between HS-6 391310 and 391320
Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.
packaging guidelines for alginic acid products
Use this topic to narrow your shortlist, then validate the final code against legal wording.
alginic acid customs clearance process
Check the exact product specs and destination-country tariff notes before finalizing the code.
natural polymers and their applications
Use this topic to narrow your shortlist, then validate the final code against legal wording.
importing alginic acid for industrial use
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 products fall under HS-6 391310?
- HS-6 391310 covers alginic acid, its salts, and esters in primary forms, commonly used in food, pharmaceuticals, and cosmetics.
- How do I determine if my product qualifies for this HS code?
- If your product is a natural polymer like alginic acid in its raw form, it likely qualifies for HS-6 391310. Check the product specifications.
- Are there specific import regulations for alginic acid?
- Yes, alginic acid may have specific import regulations depending on its intended use, especially in food and pharmaceuticals. Verify with local customs.
- What is the difference between HS-6 391310 and HS-6 391320?
- HS-6 391310 is for alginic acid, while HS-6 391320 covers other natural polymers like cellulose derivatives. Ensure you classify correctly.
- What packaging is recommended for alginic acid shipments?
- Alginic acid can be shipped in bulk containers or smaller bags. Ensure packaging is suitable for its use, especially if it's food-grade.
- Can I use HS-6 391310 for sodium alginate?
- Yes, sodium alginate, a salt of alginic acid, can also fall under HS-6 391310, as it is derived from the same natural polymer.
- What are common uses for alginic acid?
- Alginic acid is widely used as a thickening agent in food, a stabilizer in cosmetics, and as an excipient in pharmaceuticals.
- How do I ensure my alginic acid shipment clears customs?
- Ensure that your documentation accurately reflects the product type, quantity, and intended use. Consulting with a customs broker can help.
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