Calcium Alginate Granules
Calcium alginate granules, a calcium salt of alginic acid derived from brown algae, in granular primary form. Used in wound dressings and food applications, this product is a salt of alginic acid under the tariff item.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the granules are sterile and packaged as surgical dressings
Sterile alginate for medical use may fall under pharmaceutical goods.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the granules are not further worked beyond primary form (e.g
• not formed into dressings)
• For wound dressing use, check if the product is classified as a medical device under Chapter 90
• Provide the calcium content and source algae species
Related Products under Tariff item 3913.10.00
Alginic Acid Powder
Pure alginic acid in powdered primary form, extracted and purified from brown seaweeds such as Laminaria species. This product is the base polymer itself, not a salt or ester, and is used in research, pharmaceuticals, and as a thickening agent.
Ammonium Alginate Solution Concentrate
Concentrated aqueous solution of ammonium alginate, a salt of alginic acid, in primary form for further processing. Used in welding rod coatings and ceramics, this solution is a liquid primary form under the tariff item.
Food Grade Propylene Glycol Alginate
Food-grade propylene glycol alginate (PGA), an ester of alginic acid, in powdered form for ice cream stabilization. This ester meets FCC standards and is classified under the tariff item as an ester of alginic acid in primary form.
Pharmaceutical Grade Calcium Alginate
USP-grade calcium alginate powder for antacid tablets and encapsulation, sourced from controlled algae harvests. This pharmaceutical-grade salt of alginic acid is in primary form and offers slow-release properties for drug delivery.
Potassium Alginate Flakes
Potassium alginate flakes, a salt of alginic acid derived from Ascophyllum nodosum, in flake form for industrial thickening. This primary form is used in printing pastes and falls under the tariff item as an alginic salt.
Propylene Glycol Alginate (PGA)
Propylene glycol alginate (PGA), an ester of alginic acid partially esterified with propylene glycol, supplied as a powder for food and beverage stabilization. This ester is in primary form and qualifies under the tariff item.