HS Code for Citric acid esters

Citric acid esters are classified under HS code 2918.15. This code is situated within Chapter 29, which encompasses organic chemicals, and more specifically within the group of carboxylic acids with additional oxygen functions. Citric acid (2918.14) is a tri-carboxylic acid, and its derivatives—salts and esters—are grouped together in 2918.15. The classification is based on the chemical structure of the molecule, where the hydrogen atom in the carboxyl group is replaced by an alkyl or aryl group (forming an ester) or a metal ion (forming a salt). These substances are widely used in the food, pharmaceutical, and plastic industries as plasticizers, stabilizers, or flavoring agents. Because they are chemically defined compounds, they must be classified in Chapter 29 rather than as prepared chemical products in Chapter 38, provided they meet the purity requirements of the chapter notes. The HS system prioritizes chemical identity over industrial application for these types of organic compounds.

Products Included

• Triethyl citrate
• Tributyl citrate
• Acetyl triethyl citrate
• Sodium citrate (salt of citric acid)
• Potassium citrate

Common Misclassification

A common misclassification occurs with HS code 2918.14, which is reserved strictly for citric acid in its acid form. Additionally, importers sometimes mistakenly use 3824.99 for ester blends; however, if the product is a chemically defined ester, 2918.15 remains the correct heading regardless of its use as a plasticizer.

FAQ

What is the HS code for citric acid esters?

The HS code for citric acid esters, as well as the salts of citric acid, is 2918.15.

Are sodium citrates classified under this same code?

Yes, HS code 2918.15 specifically includes both the salts (like sodium or potassium citrate) and the esters of citric acid.