Heading · Chapter 29 · Section VI, Products of the chemical or allied industries
HS 2935Sulphonamides
Organic chemicals
- Customs duty
- 7.5%
- 16 tariff items
- GST now
- 5% or 18%
- depending on the goods
- Import policy
- Free
- Export policy
- Free
- Unit
- kg
- Duty in China
- 0% to 6.5%
- On Indian goods
Search codesRates as on 19 Oct 2026
Codes under this heading
6 codes. Duty and GST are set on the 8-digit tariff items; open the one that describes your goods.
| Code | Description | Customs duty | GST now | Unit |
|---|---|---|---|---|
| 2935 10 00 | N-Methylperfluorooctane sulphonamide | 7.5% | 5% or 18% | kg |
| 2935 20 00 | N-Ethylperfluorooctane sulphonamide | 7.5% | 5% or 18% | kg |
| 2935 30 00 | N-Ethyl-N-(2-hydroxyethyl) perfluorooctane sulphonamide | 7.5% | 5% or 18% | kg |
| 2935 40 00 | N-(2-Hydroxyethyl)-N-methylperfluorooctane sulphonamide | 7.5% | 5% or 18% | kg |
| 2935 50 | Other perfluorooctane sulphonamides | 7.5% | 5% or 18% | kg |
| 2935 90 | Other | 7.5% | 5% or 18% | kg |
Importing into India
Duty is set on each 8-digit tariff item: open one of the codes above. Basic customs duty across its 16 tariff items: 7.5%. The rules below cover this whole code.
Anti-dumping, countervailing and safeguard duty in force
- Anti-dumping duty on goods from China and South Korea: reference price USD 378.38–465.94/KG, by origin and producer (until 17 Aug 2027). Ursodeoxycholic Acid (UDCA). 04/2023-ADD
Charged on top of the duty above, only on goods from the countries named.
Import policy (DGFT ITC(HS)) of its tariff items
- Free: 18 tariff items
GST
IGST on imports is the GST rate. Rates changed on 22 September 2025.
- Now 5% or 18%, depending on the goods.
- Until 21 September 2025 12% or 18%, depending on the goods.
- Change: Changed.
The rules that set it now
| Notification | Goods | Rate |
|---|---|---|
| 9/2025-Integrated Tax (Rate)Schedule I, S.No. 222 | Gibberellic aci d | 5% |
| 9/2025-Integrated Tax (Rate)Schedule II, S.No. 36 | All organic chemicals other than giberellic acid | 18% |
History
| Period | Rate | Notification |
|---|---|---|
| Until 21 Sep 2025 | 12% or 18% | 1/2017-Central Tax (Rate) |
| From 22 Sep 2025 | 5% or 18% | 9/2025-Integrated Tax (Rate) |
Exporting from India
Export duty
Nil. The Second Schedule to the Customs Tariff Act does not list these goods, so no export duty is charged.
Duty drawback (All Industry Rates)
| Drawback item | Goods | Rate | Cap |
|---|---|---|---|
| 2935 | Sulphonamides | 1.2% | — |
Drawback items follow the 4-digit heading, not the 8-digit code: claim the one that describes your goods. Rates of notification 77/2023-Customs (N.T.) as amended, in force on 19 Oct 2026.
Export policy (DGFT ITC(HS) Schedule 2) of its tariff items
- Free: 18 tariff items
China: the same goods (2935)
China shares the first 6 digits with India and splits them into 10-digit codes of its own: 13 in force and 32 expired under 2935. Exporters see what China charges Indian goods; importers see the rebate and licences their Chinese supplier deals with.
| China code | Goods | Duty on Indian goods | MFN | Import VAT | Export rebate | Licences |
|---|---|---|---|---|---|---|
| 2935.10.00.00 | N-methylperfluorooctane sulfonamideN-甲基全氟辛基磺酰胺 | 6.5%MFN rate (no APTA concession on this line) | 6.5% | 13% | 9% | 89 |
| 2935.20.00.00 | N-ethylperfluorooctane sulfonamideN-乙基全氟辛基磺酰胺 | 6.5%MFN rate (no APTA concession on this line) | 6.5% | 13% | 9% | 89 |
| 2935.30.00.00 | N-ethylperfluorooctanesulfonamideN-乙基-N-全氟辛基磺酰胺 | 6.5%MFN rate (no APTA concession on this line) | 6.5% | 13% | 9% | 89 |
| 2935.40.00.00 | N-methylperfluorooctanesulfonamideN--N-甲基全氟辛基磺酰胺 | 6.5%MFN rate (no APTA concession on this line) | 6.5% | 13% | 9% | 89 |
| 2935.50.00.00 | Other perfluorooctane sulphonamides其他全氟辛基磺酰胺 | 6.5%MFN rate (no APTA concession on this line) | 6.5% | 13% | 13% | None |
| 2935.90.00.36 | Raw material for orphan drugs (bosentan)罕见病药原料(波生坦) | 0%China's provisional rate, lower than MFN | 6.5% | 3% | 13% | None |
| 2935.90.00.37 | Perfluorohexane sulfonic acid, its salts and its related compounds全氟已基磺酸及其盐类和其相关化合物 | 6.5%MFN rate (no APTA concession on this line) | 6.5% | 13% | 13% | 89 |
| 2935.90.00.38 | Salts and related compounds of perfluorooctanoic acid全氟辛酸的盐类和相关化合物 | 6.5%MFN rate (no APTA concession on this line) | 6.5% | 13% | 13% | X |
| 2935.90.00.39 | Raw material for orphan drugs (bosentan)罕见病药原料(波生坦) | 0%China's provisional rate, lower than MFN | 6.5% | 13% | 13% | None |
| 2935.90.00.41 | Flazasulfuron, flupyrsulfuron, sulfosulfuron, cloransulam-methyl, tribenuron-methyl, thifensulfuron and its acid, ethoxysulfuron, flupyrsulfuron-methyl,sodium, bensulfuron-methyl, pyrazosulfuron-ethyl, nicosulfuron, diclosulam, foramsulfuron, ethoxysulfuron, chlorsulfuron, metsulfuron-methyl, bensulfuron-methyl, amidosulfuron, flumetsulam, flusulfuron, metsulfuron-methyl氟唑磺隆,氟吡磺隆,磺酰磺隆,氯酯磺草胺,醚苯磺隆,噻吩磺隆及其酸,醚磺隆,氟啶嘧磺隆,苄嘧磺隆,吡嘧磺隆,烟嘧磺隆,双氯磺草胺,甲酰氨基嘧磺隆,乙氧磺隆,氯磺隆,甲磺隆,苯磺隆,胺苯磺隆,氟胺磺隆,氟磺隆,甲嘧磺隆 | 6.5%MFN rate (no APTA concession on this line) | 6.5% | 13% | 9% | S |
| 2935.90.00.42 | Tetrazolsulfuron, azimsulfuron, triflusulfuron-methyl, flusulfamide, methasulfuron, pyrazosulfuron-ethyl, fomesafen, sulfentrazone, indaziflam, chlorimuron-ethyl, rimsulfuron, cyclosulfamuron, mesosulfuron-methyl, azosulfamide, bispyribac-sodium, penoxsulam, monosulfuron, sulfoxaflor, trifloxysulfuron-sodium四唑嘧磺隆,唑吡嘧磺隆,三氟甲磺隆,氟磺酰草胺,甲磺草胺,嘧苯胺磺隆,氟磺胺草醚,磺草灵,吲唑磺菌胺,氯吡嘧磺隆,酰嘧磺隆,环丙嘧磺隆,甲基二磺隆,唑嘧磺草胺,双氟磺草胺,五氟磺草胺,单嘧磺酯,磺草唑胺,三氟啶磺隆钠盐 | 6.5%MFN rate (no APTA concession on this line) | 6.5% | 13% | 9% | S |
| 2935.90.00.43 | Glufosinate, amidosulfuron, trifloxysulfuron, halosulfuron-methyl, sulfentrazone, mepiquat chloride, coumaphos, phosmet, disulfoton, rimsulfuron, bensulfuron-methyl, thiencarbazone-methyl, iodosulfuron-methyl-sodium, tolylfluanid, flubendiamide, sulfotep, cyazofamid磺草膦,氨磺乐灵,三氟啶磺隆,啶磺草胺,磺菌胺,增糖胺,畜蜱磷,伐灭磷,地散磷,环氧嘧磺隆,苯嘧磺草胺,噻酮磺隆,甲基碘磺隆钠盐,甲苯氟磺胺,氟虫胺,磺菌威,氰霜唑 | 6.5%MFN rate (no APTA concession on this line) | 6.5% | 13% | 9% | S |
| 2935.90.00.90 | Other sulphonamides其他磺胺 | 6.5%MFN rate (no APTA concession on this line) | 6.5% | 13% | 13% | None |
- India is a member of the Asia-Pacific Trade Agreement (APTA). With an APTA certificate of origin, Indian goods pay China's APTA rate where the line has one; China applies the lower of that and its provisional rate.
- The export VAT rebate is what China refunds its own exporters. When China cuts it, Chinese export prices tend to rise.
China's tariff as compiled by HS编码网 from China Customs, the State Council Tariff Commission and the State Taxation Administration. The Chinese is the original.
Nearby codes
Previous2934Nucleic acids and their salts; whether or not chemically defined; other heterocyclic compoundsOne level upChapter 29Organic chemicalsNext2936Provitamins and vitamins, natural or reproduced by synthesis (including natural concentrates), derivatives thereof used primarily as vitamins, and intermixtures of the foregoing, whether or not in any solvent
Sources
- GSTN HSN code masterChecked 13 Oct 2026
- DGFT ITC(HS) import and export policyChecked 9 Oct 2026
- GST rate per HSN (archived GSTZen extract)Checked 29 Sep 2026
- Customs Tariff of India (First Schedule): sections, chapters, notes and statutory BCDChecked 19 Oct 2026
- GST rates on goods, before and after 22 September 2025Checked 18 Oct 2026
- BIS compulsory certification: products and Quality Control OrdersChecked 18 Oct 2026
- Anti-dumping, countervailing and safeguard duties in force (India)Checked 19 Oct 2026
- India's export duty (Second Schedule to the Customs Tariff Act and notifications 27/2011, 55/2022, 22/2024)Checked 18 Oct 2026
- India's All Industry Rates of duty drawback (notification 77/2023-Customs (N.T.))Checked 19 Oct 2026
- China customs tariff (HS编码网)Checked 19 Oct 2026
For information, not a customs ruling. Only notifications published in the Gazette have legal force; confirm the duty with your customs broker or ICEGATE before you price a deal.