HS Code for Alginic acid

Alginic acid is classified under HS code 391310 due to its nature as a natural polymer. Chapter 39 of the Harmonized System covers "Plastics and articles thereof," and within this, heading 3913 specifically addresses "Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms." Subheading 391310 is dedicated to "Alginic acid, its salts and esters." This classification accurately reflects alginic acid's chemical composition as a polysaccharide derived from brown algae and its presentation in primary forms, such as powders or granules, ready for industrial application.

Products Included

• Alginic acid powder
• Alginic acid granules
• Sodium alginate
• Potassium alginate
• Calcium alginate
• Propylene glycol alginate

Common Misclassification

A common misclassification involves HS 2918 (Carboxylic acids with additional oxygen function). While alginic acid is an organic acid, its polymeric structure and natural origin differentiate it from the distinct, non-polymeric organic chemical compounds typically found in Chapter 29. Chapter 29 is reserved for specific organic chemicals, not polymers. Another potential confusion is with HS 1302 (Vegetable saps and extracts). Although alginic acid is extracted from algae, it undergoes significant processing to become a refined chemical polymer, distinguishing it from crude vegetable saps or extracts.

FAQ

What is the HS code for Alginic acid?

The HS code for Alginic acid is 391310.

What are "primary forms" in the context of HS 391310?

In the context of HS 391310, "primary forms" refers to products in bulk, such as liquids, pastes, powders, granules, flakes, blocks, or other similar forms. These are typically raw materials ready for further processing or manufacturing into finished goods, rather than articles made from the polymer.