HS Code Heading

Acids; carboxylic acid with additional oxygen function and their anhydrides, halides, peroxides, peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives

29.18 Heading
Section VI — Products of the chemical or allied industries

About HS Code 2918

Heading 2918 covers carboxylic acids with additional oxygen functions, along with their anhydrides, halides, peroxides, peroxyacids, and their halogenated, sulphonated, nitrated, or nitrosated derivatives. This category is for compounds that possess a carboxyl group (-COOH) and at least one other oxygen-containing functional group, such as a hydroxyl (-OH), ether (-O-), aldehyde (-CHO), or ketone (>C=O) group. Examples include lactic acid (with a hydroxyl group) and salicylic acid (with both a hydroxyl and a carboxylic group on an aromatic ring). This heading is distinct from 2916 (monocarboxylic acids) and 2917 (polycarboxylic acids) in that the 'additional oxygen function' is the defining characteristic when the product does not primarily fit the descriptions of 2916 or 2917. These compounds are crucial in pharmaceuticals (e.g., aspirin), cosmetics, food preservation, and various industrial applications. Accurate classification is paramount for regulatory compliance, especially given the diverse end-uses and potential for both therapeutic and industrial applications. It falls under Chapter 29, signifying its importance as a specific organic chemical class.

Products Under This Code

Lactic acid, salicylic acid, gluconic acid, malic acid, tartronic acid, glycolic acid, ricinoleic acid, mandelic acid, gallic acid, vanillic acid, methyl salicylate, acetylsalicylic acid (aspirin), sodium lactate, calcium gluconate, ethyl pyruvate, pyruvic acid, ascorbic acid (Vitamin C), dehydroacetic acid, para-hydroxybenzoic acid, protocatechuic acid, dihydroxybenzoic acid, alpha-hydroxy acids (AHAs), beta-hydroxy acids (BHAs)

Real World Examples

A European cosmetic company frequently imports high-purity lactic acid from South Korea for use in its exfoliating and moisturizing skincare product lines. These shipments typically arrive via container ships through the Suez Canal and Mediterranean routes. Simultaneously, an Indian pharmaceutical manufacturer imports substantial quantities of salicylic acid from China, a critical precursor for the synthesis of aspirin and various dermatological preparations, transported via established sea lanes across the Indian Ocean. Furthermore, a US food additive supplier sources gluconic acid from Germany, where it serves as a chelating agent and acidity regulator in food and beverage formulations, with goods moving across the Atlantic via major shipping routes.

Common Misclassification

Misclassification under HS 2918 often stems from overlooking the 'additional oxygen function' criterion. Traders might confuse these products with HS 2916 (monocarboxylic acids) or HS 2917 (polycarboxylic acids) if the other oxygen groups are not given due consideration. For instance, citric acid, though having a hydroxyl group, is primarily a tricarboxylic acid and thus falls under 2917, not 2918. Another common mistake is classifying complex esters or salts of these acids under more general ester headings if their direct relationship to the acid with an additional oxygen function isn't clearly established. Aspirin (acetylsalicylic acid) is a classic example that often requires careful consideration to correctly place it here due to its specific chemical structure.

Subheadings 16

2918.11 Acids; carboxylic acids, (with alcohol function but without other oxygen function), lactic acid, its salts and esters 2918.12 Acids; carboxylic acids, (with alcohol function but without other oxygen function), tartaric acid 2918.13 Acids; carboxylic acids, (with alcohol function but without other oxygen function); salts and esters of tartaric acid 2918.14 Acids; carboxylic acids, (with alcohol function but without other oxygen function), citric acid 2918.15 Acids; carboxylic acids, (with alcohol function but without other oxygen function), salts and esters of citric acid 2918.16 Acids; carboxylic acids, (with alcohol function but without other oxygen function), gluconic acid, its salts and esters 2918.17 Acids; carboxylic acids, (with alcohol function but without other oxygen function), 2,2-Diphenyl-2-hydroxyacetic acid (benzilic acid) 2918.18 Acids; carboxylic acids, (with alcohol function but without other oxygen function), chlorobenzilate (ISO) 2918.19 Acids; carboxylic acids, (with alcohol function but without other oxygen function), other than lactic, tartaric, citric, and gluconic acids and their salts and esters 2918.21 Acids; carboxylic acids, (with phenol function but without other oxygen function), salicylic acid and its salts 2918.22 Acids; carboxylic acids, (with phenol function but without other oxygen function), o-acetylsalicylic acid, its salts and esters 2918.23 Acids; carboxylic acids, (with phenol function but without other oxygen function), other esters of salicylic acid and its salts n.e.c. in item no. 2918.2 2918.29 Acids; carboxylic acids, (with phenol function but without other oxygen function), their anhydrides, halides, peroxides, peroxyacids and their derivatives, n.e.c. in item no. 2918.2 2918.30 Acids; carboxylic acids, (with aldehyde or ketone function but without other oxygen function), their anhydrides, halides, peroxides, peroxyacids and their derivatives 2918.91 Acids; carboxylic acids, with additional oxygen function (not alcohol, phenol, aldehyde or ketone) and their anhydrides, halides, peroxides and peroxyacids; 2,4,5-T (ISO) (2,4,5-trichlorophenoxyacetic acid), its salts and esters 2918.99 Acids; carboxylic acids, with additional oxygen function (not alcohol, phenol, aldehyde or ketone) and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives; other than 2,4,5-T (ISO)

Industry

This code belongs to the Chemicals industry.

Trade Overview

Global trade in goods under HS 2918 is robust, with major importers and exporters including China, the USA, Germany, India, and various European countries. Given their applications in pharmaceuticals, cosmetics, and food, these products are subject to stringent regulatory oversight, including quality standards and safety certifications. Free trade agreements often provide preferential tariffs, but non-tariff barriers related to health and environmental regulations can significantly impact market access. These chemicals are essential intermediates for high-value industries worldwide.

Frequently Asked Questions

What is HS code 2918?

HS code 2918 is a 4-digit heading in the Harmonized System that covers: Acids; carboxylic acid with additional oxygen function and their anhydrides, halides, peroxides, peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. Heading 2918 covers carboxylic acids with additional oxygen functions, along with their anhydrides, halides, peroxides, peroxyacids, and their halogenated, sulphonated, nitrated, or nitrosated derivatives. This category is for compounds that possess a carboxyl group (-COOH) and at least one other oxygen-containing functional group, such as a hydroxyl (-OH), ether (-O-), aldehyde (-CHO), or ketone (>C=O) group. Examples include lactic acid (with a hydroxyl group) and salicylic acid (with both a hydroxyl and a carboxylic group on an aromatic ring). This heading is distinct from 2916 (monocarboxylic acids) and 2917 (polycarboxylic acids) in that the 'additional oxygen function' is the defining characteristic when the product does not primarily fit the descriptions of 2916 or 2917. These compounds are crucial in pharmaceuticals (e.g., aspirin), cosmetics, food preservation, and various industrial applications. Accurate classification is paramount for regulatory compliance, especially given the diverse end-uses and potential for both therapeutic and industrial applications. It falls under Chapter 29, signifying its importance as a specific organic chemical class.

What products fall under HS code 2918?

Lactic acid, salicylic acid, gluconic acid, malic acid, tartronic acid, glycolic acid, ricinoleic acid, mandelic acid, gallic acid, vanillic acid, methyl salicylate, acetylsalicylic acid (aspirin), sodium lactate, calcium gluconate, ethyl pyruvate, pyruvic acid, ascorbic acid (Vitamin C), dehydroacetic acid, para-hydroxybenzoic acid, protocatechuic acid, dihydroxybenzoic acid, alpha-hydroxy acids (AHAs), beta-hydroxy acids (BHAs)

What are common misclassifications for HS code 2918?

Misclassification under HS 2918 often stems from overlooking the 'additional oxygen function' criterion. Traders might confuse these products with HS 2916 (monocarboxylic acids) or HS 2917 (polycarboxylic acids) if the other oxygen groups are not given due consideration. For instance, citric acid, though having a hydroxyl group, is primarily a tricarboxylic acid and thus falls under 2917, not 2918. Another common mistake is classifying complex esters or salts of these acids under more general ester headings if their direct relationship to the acid with an additional oxygen function isn't clearly established. Aspirin (acetylsalicylic acid) is a classic example that often requires careful consideration to correctly place it here due to its specific chemical structure.

Which countries trade the most under HS code 2918?

Global trade in goods under HS 2918 is robust, with major importers and exporters including China, the USA, Germany, India, and various European countries. Given their applications in pharmaceuticals, cosmetics, and food, these products are subject to stringent regulatory oversight, including quality standards and safety certifications. Free trade agreements often provide preferential tariffs, but non-tariff barriers related to health and environmental regulations can significantly impact market access. These chemicals are essential intermediates for high-value industries worldwide.

How is HS code 2918 structured?

HS code 2918 is a 4-digit heading under Chapter 29 of the Harmonized System. The first 2 digits (29) identify the chapter, and digits 3-4 (18) specify the heading. This code contains multiple 6-digit subheadings for precise product classification.