HTS 2935Sulfonamides
Rate lines19
Duty by country of origin
| Rate line | Ireland53.88% of imports | China9.76% of imports | India9.2% of imports | Singapore7.71% of imports | Switzerland3.82% of imports | Spain3.1% of imports | Portugal2.62% of imports | Belgium1.77% of imports | Japan1.58% of imports | Germany1.28% of imports |
|---|---|---|---|---|---|---|---|---|---|---|
| 2935.10.00.00N-Methyl perfluorooctane sulfonamide | 10%9903.05.39 | 19%9903.05.31 | 16.5%9903.05.44 | 19%9903.05.68 | 12.5%9903.05.74 | 10%9903.05.39 | 10%9903.05.39 | 10%9903.05.39 | 12.5%9903.05.49 | 10%9903.05.39 |
| 2935.20.00.00N-Ethyl perfluorooctane sulfonamide | 10%9903.05.39 | 19%9903.05.31 | 16.5%9903.05.44 | 19%9903.05.68 | 12.5%9903.05.74 | 10%9903.05.39 | 10%9903.05.39 | 10%9903.05.39 | 12.5%9903.05.49 | 10%9903.05.39 |
| 2935.30.00.00N-Ethyl -N-(2-hydroxyethyl)perfluorooctane sulfonamide | 10%9903.05.39 | 19%9903.05.31 | 16.5%9903.05.44 | 19%9903.05.68 | 12.5%9903.05.74 | 10%9903.05.39 | 10%9903.05.39 | 10%9903.05.39 | 12.5%9903.05.49 | 10%9903.05.39 |
| 2935.40.00.00N-(2-hydroxyethyl)-N-methyl perfluorooctane sulfonamide | 10%9903.05.39 | 19%9903.05.31 | 16.5%9903.05.44 | 19%9903.05.68 | 12.5%9903.05.74 | 10%9903.05.39 | 10%9903.05.39 | 10%9903.05.39 | 12.5%9903.05.49 | 10%9903.05.39 |
| 2935.50.00.00Other perfluorooctane sulfonamides | 10%9903.05.39 | 19%9903.05.31 | 16.5%9903.05.44 | 19%9903.05.68 | 12.5%9903.05.74 | 10%9903.05.39 | 10%9903.05.39 | 10%9903.05.39 | 12.5%9903.05.49 | 10%9903.05.39 |
| 2935.90.06.004-Amino-6-chloro-m-benzenedisulfonamide and Methyl-4-aminobenzenesulfonylcarbamate (Asulam) | 10%9903.05.39 | 19%9903.05.31 | 16.5%9903.05.44 | 19%9903.05.68 | 12.5%9903.05.74 | 10%9903.05.39 | 10%9903.05.39 | 10%9903.05.39 | 12.5%9903.05.49 | 10%9903.05.39 |
| 2935.90.10.002-Amino-N-ethylbenzenesulfonanilide; 5-Amino-α,α,α-trifluorotoluene-2,4-disulfonamide; Benzenesulfonamide; Benzenesulfonyl hydrazide; 2-Chloro-4-amino-5-hydroxybenzenesulfonamide; 2,5-Dimethoxysulfanilanilide; and Metanilamide | 10%9903.05.39 | 19%9903.05.31 | 16.5%9903.05.44 | 19%9903.05.68 | 12.5%9903.05.74 | 10%9903.05.39 | 10%9903.05.39 | 10%9903.05.39 | 12.5%9903.05.49 | 10%9903.05.39 |
| 2935.90.13.00(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-toluenesulfonamides | 10%9903.05.39 | 12.5%9903.05.31 | 10%9903.05.44 | 12.5%9903.05.68 | 12.5%9903.05.74 | 10%9903.05.39 | 10%9903.05.39 | 10%9903.05.39 | 12.5%9903.05.49 | 10%9903.05.39 |
| 2935.90.15.00o-Toluenesulfonamide | 10%9903.05.39 | 19%9903.05.31 | 16.5%9903.05.44 | 19%9903.05.68 | 12.5%9903.05.74 | 10%9903.05.39 | 10%9903.05.39 | 10%9903.05.39 | 12.5%9903.05.49 | 10%9903.05.39 |
| 2935.90.20.00Fast color bases and fast color salts | 10%9903.05.39 | 19%9903.05.31 | 16.5%9903.05.44 | 19%9903.05.68 | 12.5%9903.05.74 | 10%9903.05.39 | 10%9903.05.39 | 10%9903.05.39 | 12.5%9903.05.49 | 10%9903.05.39 |
| 2935.90.29.00Acetylsulfaguanidine | 10%9903.05.39 | 12.5%9903.05.31 | 10%9903.05.44 | 12.5%9903.05.68 | 12.5%9903.05.74 | 10%9903.05.39 | 10%9903.05.39 | 10%9903.05.39 | 12.5%9903.05.49 | 10%9903.05.39 |
| 2935.90.30.00Sulfamethazine | 10%9903.05.39 | 12.5%9903.05.31 | 10%9903.05.44 | 12.5%9903.05.68 | 12.5%9903.05.74 | 10%9903.05.39 | 10%9903.05.39 | 10%9903.05.39 | 12.5%9903.05.49 | 10%9903.05.39 |
| 2935.90.32.00Acetylsulfisoxazole; Sulfacetamide, sodium; and Sulfamethazine, sodium | 10%9903.05.39 | 19%9903.05.31 | 16.5%9903.05.44 | 19%9903.05.68 | 12.5%9903.05.74 | 10%9903.05.39 | 10%9903.05.39 | 10%9903.05.39 | 12.5%9903.05.49 | 10%9903.05.39 |
| 2935.90.33.00Sulfathiazole and Sulfathiazole, sodium | 10%9903.05.39 | 12.5%9903.05.31 | 10%9903.05.44 | 12.5%9903.05.68 | 12.5%9903.05.74 | 10%9903.05.39 | 10%9903.05.39 | 10%9903.05.39 | 12.5%9903.05.49 | 10%9903.05.39 |
| 2935.90.42.00Salicylazosulfapyridine (Sulfasalazine); Sulfadiazine; Sulfaguanidine; Sulfamerizine; and Sulfapyridine | 10%9903.05.39 | 12.5%9903.05.31 | 10%9903.05.44 | 12.5%9903.05.68 | 12.5%9903.05.74 | 10%9903.05.39 | 10%9903.05.39 | 10%9903.05.39 | 12.5%9903.05.49 | 10%9903.05.39 |
| 2935.90.48.00Other | VariesDepends on product facts | From 19%9903.05.31Depends on product facts | From 6.5%Depends on product facts | From 19%9903.05.68Depends on product facts | VariesDepends on product facts | VariesDepends on product facts | VariesDepends on product facts | VariesDepends on product facts | VariesDepends on product facts | VariesDepends on product facts |
| 2935.90.60.00Other | VariesDepends on product facts | From 19%9903.05.31Depends on product facts | From 6.5%Depends on product facts | From 19%9903.05.68Depends on product facts | VariesDepends on product facts | VariesDepends on product facts | VariesDepends on product facts | VariesDepends on product facts | VariesDepends on product facts | VariesDepends on product facts |
| 2935.90.75.00Products described in additional U.S. note 3 to section VI | 10%9903.05.39 | 19%9903.05.31 | 16.5%9903.05.44 | 19%9903.05.68 | 12.5%9903.05.74 | 10%9903.05.39 | 10%9903.05.39 | 10%9903.05.39 | 12.5%9903.05.49 | 10%9903.05.39 |
| 2935.90.95.00Other | 10%9903.05.39 | 19%9903.05.31 | 16.5%9903.05.44 | 19%9903.05.68 | 12.5%9903.05.74 | 10%9903.05.39 | 10%9903.05.39 | 10%9903.05.39 | 12.5%9903.05.49 | 10%9903.05.39 |
Total duty on a $10,000 ocean shipment entered 2026-10-13, before customs fees. Origins are the leading sources of US imports under this heading in 2025 (US Census Bureau).