---
title: "2918 HSN Code | HSN Code for Carboxylic acids and derivatives in India"
description: "Know more about 2918 HSN Code with BUSY Accounting - HSN Tariff, GST Rates and case laws related to chapter 2918 covering Carboxylic acids and derivatives."
canonical: "https://busy.in/hsn/sub-chapter-2918/"
---

# HSN Sub-chapter 2918: Carboxylic acids and derivatives

Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives

Part of [Chapter 29: Organic Chemicals](https://busy.in/hsn/chapter-29/).

- Current GST rate: 18%
- Earlier GST rate: 18%

## HSN codes

| Code | Title |
| --- | --- |
| 29181110 | [Lactic acid](https://busy.in/hsn/hsn-29181110/) |
| 29181120 | [Calcium lactate](https://busy.in/hsn/hsn-29181120/) |
| 29181190 | [Lactic acid: Other](https://busy.in/hsn/hsn-29181190/) |
| 29181200 | [Tartaric acid](https://busy.in/hsn/hsn-29181200/) |
| 29181310 | [Potassium bitartrate](https://busy.in/hsn/hsn-29181310/) |
| 29181320 | [Metroprolol tartrate](https://busy.in/hsn/hsn-29181320/) |
| 29181390 | [Tartaric acid: Other salts and esters](https://busy.in/hsn/hsn-29181390/) |
| 29181400 | [Citric acid](https://busy.in/hsn/hsn-29181400/) |
| 29181510 | [Potassium citrate](https://busy.in/hsn/hsn-29181510/) |
| 29181520 | [Sodium citrate](https://busy.in/hsn/hsn-29181520/) |
| 29181530 | [Bismuth citrate](https://busy.in/hsn/hsn-29181530/) |
| 29181540 | [Disodium hydrogen citrate](https://busy.in/hsn/hsn-29181540/) |
| 29181550 | [Ferric ammonium citrate](https://busy.in/hsn/hsn-29181550/) |
| 29181590 | [Citric acid: Other salts and esters](https://busy.in/hsn/hsn-29181590/) |
| 29181610 | [Calcium gluconate](https://busy.in/hsn/hsn-29181610/) |
| 29181620 | [Ferrous gluconate](https://busy.in/hsn/hsn-29181620/) |
| 29181690 | [Gluconic acid: Other](https://busy.in/hsn/hsn-29181690/) |
| 29181700 | [Benzilic acid](https://busy.in/hsn/hsn-29181700/) |
| 29181800 | [Chlorobenzilate](https://busy.in/hsn/hsn-29181800/) |
| 29181900 | [Other Carboxylic Acids with Oxygen Function](https://busy.in/hsn/hsn-29181900/) |
| 29181910 | [Benzeneacetic acid](https://busy.in/hsn/hsn-29181910/) |
| 29181920 | [Cholic acid](https://busy.in/hsn/hsn-29181920/) |
| 29181930 | [Ricinoleic acid](https://busy.in/hsn/hsn-29181930/) |
| 29181990 | [Other carboxylic acids](https://busy.in/hsn/hsn-29181990/) |
| 29182110 | [Salicylic Acid](https://busy.in/hsn/hsn-29182110/) |
| 29182120 | [Sodium Salicylate](https://busy.in/hsn/hsn-29182120/) |
| 29182190 | [Other Salicylic Acid & Salts](https://busy.in/hsn/hsn-29182190/) |
| 29182200 | [O-Acetylsalicylic Acid, Salts & Esters0](https://busy.in/hsn/hsn-29182200/) |
| 29182310 | [Methyl Salicylate](https://busy.in/hsn/hsn-29182310/) |
| 29182320 | [Amino Salicylate](https://busy.in/hsn/hsn-29182320/) |
| 29182330 | [Salicylamide](https://busy.in/hsn/hsn-29182330/) |
| 29182340 | [Benzyl Salicylate](https://busy.in/hsn/hsn-29182340/) |
| 29182390 | [Other Esters of Salicylic Acid](https://busy.in/hsn/hsn-29182390/) |
| 29182910 | [Gallic Acid](https://busy.in/hsn/hsn-29182910/) |
| 29182920 | [Beta Hydroxy Naphthoic Acid](https://busy.in/hsn/hsn-29182920/) |
| 29182930 | [Propyl Gallate](https://busy.in/hsn/hsn-29182930/) |
| 29182990 | [Other Carboxylic Acids](https://busy.in/hsn/hsn-29182990/) |
| 29183010 | [Levulinic acid](https://busy.in/hsn/hsn-29183010/) |
| 29183020 | [Acetoacetic ester](https://busy.in/hsn/hsn-29183020/) |
| 29183030 | [Nalidixic Acid](https://busy.in/hsn/hsn-29183030/) |
| 29183040 | [Methyl Aceto Acetate](https://busy.in/hsn/hsn-29183040/) |
| 29183050 | [Fluoro benzoyl butyric acid](https://busy.in/hsn/hsn-29183050/) |
| 29183090 | [Other Carboxylic Acids](https://busy.in/hsn/hsn-29183090/) |
| 29189000 | [Other Carboxylic Acids with Oxygen Function](https://busy.in/hsn/hsn-29189000/) |
| 29189100 | [2,4,5-T (ISO) & Salts/Esters](https://busy.in/hsn/hsn-29189100/) |
| 29189900 | [Glycerophosphoric Acid](https://busy.in/hsn/hsn-29189900/) |
| 29189910 | [Other\| Other\| Sodium Phenoxy Acetate](https://busy.in/hsn/hsn-29189910/) |
| 29189920 | [Methyl (E)-2-\[2-(Chloromethyl) Phenyl\]-3-Methoxyacrylate](https://busy.in/hsn/hsn-29189920/) |
| 29189990 | [Other Carboxylic Acids with Oxygen Functions](https://busy.in/hsn/hsn-29189990/) |

## Frequently asked questions

### What products are classified under HSN 2918

It includes Carboxylic acids and derivatives

### If I repair and return Carboxylic acids and derivatives, how should I charge GST?

Repair/service is a service supply (SAC). Parts and materials used are goods and may be billed separately with HSN. Mention both lines clearly to avoid mixing service and goods values.

### Does packaging or branding change how GST applies to Carboxylic acids and derivatives?

Yes. Many food/agri goods are treated differently when sold as pre‑packaged & labelled retail packs versus loose/open packs. If Carboxylic acids and derivatives is sold in small pouches (e.g., 500 g) with an MRP and label, record that on the invoice. Loose bulk bags often follow a different treatment.

### Any import/export nuance for Carboxylic acids and derivatives?

Exports are zero‑rated (with or without payment of IGST) subject to LUT/refund conditions. Imports may attract customs duties in addition to GST. Keep HSN‑wise description consistent across invoice, shipping bill and BOE.

### Does MRP, weight or pack size change GST treatment for Carboxylic acids and derivatives?

Some entries use MRP/weight‑based conditions for classification. Keep pack size, retail marking and brand status on records and invoice to support the chosen HSN.

### Can reverse charge ever apply to transactions involving Carboxylic acids and derivatives?

Reverse charge in goods is notified only for specific categories. Most regular B2B sales of Carboxylic acids and derivatives are forward charge. Check the current notifications for any special cases before deciding.

## India's trade performance: HSN Sub-Chapter 2918 (FY 2024-25)

Source: TradeStat EIDB, Ministry of Commerce & Industry. Values in ₹ Crore (FY 2018-19 to FY 2024-25).

- Exports: ₹5,588 Cr (+19.51% YoY) — 0.1509% of India's total exports
- Imports: ₹4,723 Cr (+9.46% YoY) — 0.0774% of India's total imports
- Trade balance: ₹865 Cr (Surplus); surplus rank #198 of 1233 sub-chapters
- Share of Chapter 29: 3.28% of its exports; import side 2.10%
- Rank within Chapter 29: #11 of 42 by export value; import-side #15

### Key metrics

- Export CAGR: 14.06% (FY 2018-19 to FY 2024-25, 7 fiscal years)
- National export rank: #126 of 1233 sub-chapters by export value (FY 2024-25)
- Peak growth year: +29.01% in FY 2020-21
- Contribution to Ch. 29: 3.28% of its exports (FY 2024-25)

## India export-import trade statistics: HSN Sub-Chapter 2918

7-year export and import data, FY 2018-19 to FY 2024-25, in ₹ Crore. Source: Ministry of Commerce & Industry, TradeStat EIDB.

| FY | Exports (₹ Cr) | Exp share | Exp YoY | Exp % of Ch. 29 | Imports (₹ Cr) | Imp share | Imp YoY | Imp % of Ch. 29 | Trade balance | Exp rank |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| FY 2018-19 | 2,537.71 | 0.1106% | — | 1.99% | 2,922.18 | 0.0814% | — | 1.87% | −384.47 | #160 |
| FY 2019-20 | 2,918.47 | 0.1321% | +15.00% | 2.36% | 2,967.83 | 0.0885% | +1.56% | 2.12% | −49.36 | #139 |
| FY 2020-21 | 3,764.98 | 0.1750% | +29.01% | 2.83% | 3,980.91 | 0.1366% | +34.14% | 2.73% | −215.93 | #118 |
| FY 2021-22 | 4,667.16 | 0.1487% | +23.96% | 2.84% | 4,379.02 | 0.0958% | +10.00% | 2.06% | +288.14 | #127 |
| FY 2022-23 | 5,032.99 | 0.1390% | +7.84% | 2.93% | 5,177.08 | 0.0900% | +18.22% | 2.23% | −144.09 | #125 |
| FY 2023-24 | 4,675.53 | 0.1292% | −7.10% | 2.78% | 4,314.43 | 0.0768% | −16.66% | 1.95% | +361.10 | #137 |
| FY 2024-25 | 5,587.93 | 0.1509% | +19.51% | 3.28% | 4,722.61 | 0.0774% | +9.46% | 2.10% | +865.32 | #126 |

- CAGR (7-year): exports 14.06%/yr, imports 8.33%/yr (consistently Surplus)

## Key trade insights: HSN Sub-Chapter 2918 export-import analysis

### Consistent export growth: 14.06% CAGR over 7 years

India's exports under HSN Sub-Chapter 2918 have grown at a compound annual rate of 14.06% over 7 fiscal years, rising from ₹2,537.71 Crore in FY 2018-19 to ₹5,587.93 Crore in FY 2024-25.

### HSN Sub-Chapter 2918 ranked #126 among all 1233 sub-chapters by export value

In FY 2024-25, HSN Sub-Chapter 2918 ranks #126 out of 1233 sub-chapters by total export value. Within Chapter 29, it ranks #11 of 42. By trade surplus, it ranks #198 of 1233.

### FY 2020-21 was the strongest growth year for HSN Sub-Chapter 2918 exports

The strongest single-year export movement for HSN Sub-Chapter 2918 was recorded in FY 2020-21, when exports surged by 29.01% over the prior year.

### India maintains a trade surplus of ₹865.32 Crore in HSN Sub-Chapter 2918 goods

In FY 2024-25, India's exports of ₹5,587.93 Cr exceeded imports of ₹4,722.61 Cr, resulting in a trade surplus of ₹865.32 Crore — ranking #198 of 1233 by surplus magnitude.

### Import growth of 8.33% CAGR signals stable import dependency for Carboxylic acids and derivatives

India's imports under HSN Sub-Chapter 2918 have grown at 8.33% CAGR, reaching ₹4,722.61 Crore in FY 2024-25.

### HSN Sub-Chapter 2918 contributes 3.28% of Chapter 29 exports — ranked #11

Among the 42 sub-chapters under Chapter 29, HSN Sub-Chapter 2918 ranks #11 by export value — accounting for 3.28% of the chapter's total exports in FY 2024-25. On the import side, it holds 2.10% share (rank #15).

## Related Sub-Chapters in Chapter 29

Ranked by export value (FY 2024-25).

| Rank | HSN Sub-Chapter | Exports (FY 2024-25) |
| --- | --- | --- |
| #1 | [HSN Sub-Chapter 2933: Heterocyclic nitrogen compounds](https://busy.in/hsn/sub-chapter-2933/) | ₹37,363 Cr |
| #2 | [HSN Sub-Chapter 2902: Cyclic hydrocarbons](https://busy.in/hsn/sub-chapter-2902/) | ₹15,293 Cr |
| #3 | [HSN Sub-Chapter 2942: Other organic compounds](https://busy.in/hsn/sub-chapter-2942/) | ₹10,794 Cr |
| #4 | [HSN Sub-Chapter 2941: Antibiotics](https://busy.in/hsn/sub-chapter-2941/) | ₹8,911 Cr |
| #5 | [HSN Sub-Chapter 2921: Amine- function compounds](https://busy.in/hsn/sub-chapter-2921/) | ₹7,834 Cr |
| #6 | [HSN Sub-Chapter 2924: Internal combustion engines](https://busy.in/hsn/sub-chapter-2924/) | ₹6,530 Cr |
| #7 | [HSN Sub-Chapter 2915: Monocarboxylic acids and derivatives](https://busy.in/hsn/sub-chapter-2915/) | ₹6,424 Cr |
| #8 | [HSN Sub-Chapter 2934: Nucleic acids & derivatives](https://busy.in/hsn/sub-chapter-2934/) | ₹6,343 Cr |
| #9 | [HSN Sub-Chapter 2922: Oxygen-function amino-compounds](https://busy.in/hsn/sub-chapter-2922/) | ₹5,810 Cr |
| #10 | [HSN Sub-Chapter 2909: Ethers, ether-alcohols, peroxides](https://busy.in/hsn/sub-chapter-2909/) | ₹5,590 Cr |
| #11 | HSN Sub-Chapter 2918: Carboxylic acids and derivatives (this hsn sub-chapter) | ₹5,588 Cr |

## Other sub-chapters

| Code | Title |
| --- | --- |
| 2901 | [Acyclic hydrocarbons](https://busy.in/hsn/sub-chapter-2901/) |
| 2902 | [Cyclic hydrocarbons](https://busy.in/hsn/sub-chapter-2902/) |
| 2903 | [Halogenated hydrocarbons derivatives](https://busy.in/hsn/sub-chapter-2903/) |
| 2904 | [Hydrocarbon derivatives](https://busy.in/hsn/sub-chapter-2904/) |
| 2905 | [Acyclic alcohols & derivatives](https://busy.in/hsn/sub-chapter-2905/) |
| 2906 | [Cyclic alcohols & derivatives](https://busy.in/hsn/sub-chapter-2906/) |
| 2907 | [Phenols & derivatives](https://busy.in/hsn/sub-chapter-2907/) |
| 2908 | [Halogenated phenol derivatives](https://busy.in/hsn/sub-chapter-2908/) |
| 2909 | [Ethers, ether-alcohols, peroxides](https://busy.in/hsn/sub-chapter-2909/) |
| 2910 | [Epoxides & Derivatives](https://busy.in/hsn/sub-chapter-2910/) |
| 2911 | [Acetals & derivatives](https://busy.in/hsn/sub-chapter-2911/) |
| 2912 | [Aldehydes & derivatives](https://busy.in/hsn/sub-chapter-2912/) |
| 2913 | [Halogenated compounds](https://busy.in/hsn/sub-chapter-2913/) |
| 2914 | [Ketones & quinones](https://busy.in/hsn/sub-chapter-2914/) |
| 2915 | [Monocarboxylic acids and derivatives](https://busy.in/hsn/sub-chapter-2915/) |
| 2916 | [Unsaturated acids](https://busy.in/hsn/sub-chapter-2916/) |
| 2917 | [Polycarboxylic Acids](https://busy.in/hsn/sub-chapter-2917/) |
| 2919 | [Phosphoric Esters](https://busy.in/hsn/sub-chapter-2919/) |
| 2920 | [Inorganic acid esters and salts](https://busy.in/hsn/sub-chapter-2920/) |
| 2921 | [Amine- function compounds](https://busy.in/hsn/sub-chapter-2921/) |
| 2922 | [Oxygen-function amino-compounds](https://busy.in/hsn/sub-chapter-2922/) |
| 2923 | [Quaternary ammonium compounds](https://busy.in/hsn/sub-chapter-2923/) |
| 2924 | [Internal combustion engines](https://busy.in/hsn/sub-chapter-2924/) |
| 2925 | [Carboxyimide compounds](https://busy.in/hsn/sub-chapter-2925/) |
| 2926 | [Nitrile-function compounds](https://busy.in/hsn/sub-chapter-2926/) |
| 2927 | [Diazo-, azo- or azoxy-compounds](https://busy.in/hsn/sub-chapter-2927/) |
| 2928 | [Hydrazine derivatives](https://busy.in/hsn/sub-chapter-2928/) |
| 2929 | [Compounds with other nitrogen function](https://busy.in/hsn/sub-chapter-2929/) |
| 2930 | [Organo-sulphur compounds](https://busy.in/hsn/sub-chapter-2930/) |
| 2931 | [Other organo-inorganic compounds](https://busy.in/hsn/sub-chapter-2931/) |
| 2932 | [Oxygen heterocyclic compounds](https://busy.in/hsn/sub-chapter-2932/) |
| 2933 | [Heterocyclic nitrogen compounds](https://busy.in/hsn/sub-chapter-2933/) |
| 2934 | [Nucleic acids & derivatives](https://busy.in/hsn/sub-chapter-2934/) |
| 2935 | [Sulphonamides](https://busy.in/hsn/sub-chapter-2935/) |
| 2936 | [Provitamins & vitamins, synthesized](https://busy.in/hsn/sub-chapter-2936/) |
| 2937 | [Hormones & derivatives, synthesized](https://busy.in/hsn/sub-chapter-2937/) |
| 2938 | [Natural glycosides & derivatives](https://busy.in/hsn/sub-chapter-2938/) |
| 2939 | [Vegetable alkaloids & derivatives](https://busy.in/hsn/sub-chapter-2939/) |
| 2940 | [Pure sugars excluding common types](https://busy.in/hsn/sub-chapter-2940/) |
| 2941 | [Antibiotics](https://busy.in/hsn/sub-chapter-2941/) |
| 2942 | [Other organic compounds](https://busy.in/hsn/sub-chapter-2942/) |