Sulfonamide compounds from India
India exported $365 million of sulfonamide compounds (HS 2935.90) in FY2025-26, up 9.7% on FY2024-25. Goods made in India pay 10% to 16.5% US import duty, depending on the tariff line, against 12.5% to 19% for goods from China.
- US duty from India
- 10%China 12.5%
- India's exports, FY2025-26
- $365MUp 9.7% on last year
- HS code
- 2935.90Page updated 6 Nov 2026
US import duty, India vs China
India pays 2.5 points less on the lowest-duty line. From the USITC HTS 2026 Rev 22.
All 14 US tariff lines
| HTS line | Description | Base | India | China |
|---|---|---|---|---|
| 2935.90.06.00 | Other: 4-Amino-6-chloro-<i>m</i>-benzenedisulfonamide and <newline></newline>Methyl-4-aminobenzenesulfonylcarbamate (Asulam)6.5% if the goods are for pharmaceutical use | 6.5% | 16.5% | 19% |
| 2935.90.10.00 | Other: 2-Amino-<i>N</i>-ethylbenzenesulfonanilide; <newline></newline>5-Amino-<i>α</i>,<i>α</i>,<i>α</i>-trifluorotoluene-2,4-disulfonamide; <newline></newline>Benzenesulfonamide; <newline></newline>Benzenesulfonyl hydrazide; <newline></newline>2-Chloro-4-amino-5-hydroxybenzenesulfonamide; <newline></newline>2,5-Dimethoxysulfanilanilide; and <newline></newline>Metanilamide6.5% if the goods are for pharmaceutical use | 6.5% | 16.5% | 19% |
| 2935.90.13.00 | Other: (5‐[2‐Chloro‐4‐ (trifluoromethyl)phenoxy]‐N‐ (methylsulfonyl)‐2‐nitrobenzamide) (Fomesafen); N‐(2,6‐Dichloro‐3‐ methylphenyl)‐5‐ amino‐1,3,4‐triazole‐2‐sulfonamide; 2,4‐Dichloro‐5‐ sulfamoylbenzoic acid; N‐Ethyl‐o‐ toluenesulfonamide; N‐Ethyl‐p‐toluenesulfonamide; 7-(Hexadecylsulfonylamino) ‐1H‐indole; Methyl 5‐{[(4,6‐dimethoxy‐2‐pyrimidinyl)amino]‐ carbonylaminosulfonyl} ‐3‐chloro‐1‐methyl‐1H‐pyrazole‐4‐carboxylate (Halosulfuron methyl); and Mixtures of ortho‐ and para-toluenesulfonamides0% if the goods are for pharmaceutical use | Free | 10% | 12.5% |
| 2935.90.15.00 | Other: <i>o</i>-Toluenesulfonamide6.5% if the goods are for pharmaceutical use | 6.5% | 16.5% | 19% |
| 2935.90.20.00 | Other: Fast color bases and fast color salts6.5% if the goods are for pharmaceutical use | 6.5% | 16.5% | 19% |
| 2935.90.29.00 | Anti-infective agents: Acetylsulfaguanidine0% if the goods are for pharmaceutical use | Free | 10% | 12.5% |
| 2935.90.30.00 | Anti-infective agents: Sulfamethazine0% if the goods are for pharmaceutical use | Free | 10% | 12.5% |
| 2935.90.32.00 | Anti-infective agents: Acetylsulfisoxazole; Sulfacetamide, sodium; and Sulfamethazine, sodium6.5% if the goods are for pharmaceutical use | 6.5% | 16.5% | 19% |
| 2935.90.33.00 | Anti-infective agents: Sulfathiazole and Sulfathiazole, sodium0% if the goods are for pharmaceutical use | Free | 10% | 12.5% |
| 2935.90.42.00 | Anti-infective agents: Salicylazosulfapyridine (Sulfasalazine); Sulfadiazine; Sulfaguanidine; Sulfamerizine; and Sulfapyridine0% if the goods are for pharmaceutical use | Free | 10% | 12.5% |
| 2935.90.48.00 | Anti-infective agents: Other6.5% if the goods are for pharmaceutical use | 6.5% | 16.5% | 19% |
| 2935.90.60.00 | Drugs: Other6.5% if the goods are for pharmaceutical use | 6.5% | 16.5% | 19% |
Showing 12 of 14 tariff lines. Totals include the Section 301 duty on goods from India or China and any Section 232 metals duty. They exclude anti-dumping and countervailing duties and customs fees. Check the current rate before you quote.
India's exports of sulfonamide compounds
India's exports to all countries under HS 2935.90, April to March, from DGCI&S.
Rules and other duties
- EU base duty
- The EU's average applied base (MFN) rate on HS 2935.90 is 6.3%, ranging from 0% to 6.5% across tariff lines, from 2021 data. It doesn't include India's GSP preference, so goods from India may pay less. Check the current rate in TARIC before you quote.
- RoDTEP
- India's schedule lists 0.8% of FOB value for exporters. The scheme was notified until 30 September 2026, so check with DGFT whether it's been extended.
- India's export policy
- Free to export, with no licence needed.
Common questions
What is the US import duty on sulfonamide compounds from India?
10% to 16.5% on the 14 US tariff lines under HS 2935.90, including the Section 301 duty on Indian goods and any Section 232 metals duty. Goods from China pay 12.5% to 19%. Anti-dumping duties and customs fees aren't included.
What is the HS code for sulfonamide compounds?
2935.90, under heading 2935 (Sulfonamides). Check the exact 8-digit or 10-digit line with your customs broker, since duty can differ between lines.
Does India export sulfonamide compounds?
Yes. India exported $365 million under HS 2935.90 in FY2025-26, according to DGCI&S, the Ministry of Commerce's trade statistics body.