Section VI · Organic chemicals

2935.90

Other:

How this code is built
29

Chapter

Organic chemicals

35

Heading

The product family within the chapter

90

Subheading

The specific good, identical worldwide

The first six digits are the same in every country that uses the Harmonized System. The United States adds two more for the tariff rate and, often, two more for statistics — which is why the rates below are listed against 8- and 10-digit numbers rather than against this code.

How the schedule reaches this code

  1. 29Organic chemicals
  2. 2935Sulfonamides:
  3. Other:

Published US duty rates

Duty is set at the 8- or 10-digit line, not at this 6-digit subheading, so more than one rate can sit under this code.

  • 2935.90.06.004-Amino-6-chloro-m-benzenedisulfonamide and Methyl-4-aminobenzenesulfonylcarbamate (Asulam)kg
    General
    6.5%
    Special (FTA)
    Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    15.4¢/kg + 41%

    Countries without normal trade relations.

  • 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 Metanilamidekg
    General
    6.5%
    Special (FTA)
    Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,L,MA,OM,P,PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    15.4¢/kg + 41%

    Countries without normal trade relations.

  • 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-toluenesulfonamideskg
    General
    Free
    Special (FTA)
    —

    No preferential rate published.

    Column 2
    15.4¢/kg + 57.5%

    Countries without normal trade relations.

  • 2935.90.15.00o-Toluenesulfonamidekg
    General
    6.5%
    Special (FTA)
    Free (A+,AU,BH,CL,CO,D, E,IL, JO, KR,MA,OM,P, PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    15.4¢/kg + 57.5%

    Countries without normal trade relations.

  • 2935.90.20.00Fast color bases and fast color saltskg
    General
    6.5%
    Special (FTA)
    Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    15.4¢/kg + 54.5%

    Countries without normal trade relations.

  • 2935.90.29.00Acetylsulfaguanidinekg
    General
    Free
    Special (FTA)
    —

    No preferential rate published.

    Column 2
    15.4¢/kg + 96%

    Countries without normal trade relations.

  • 2935.90.30.00Sulfamethazinekg
    General
    Free
    Special (FTA)
    —

    No preferential rate published.

    Column 2
    15.4¢/kg + 80%

    Countries without normal trade relations.

  • 2935.90.32.00Acetylsulfisoxazole; Sulfacetamide, sodium; and Sulfamethazine, sodiumkg
    General
    6.5%
    Special (FTA)
    Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    15.4¢/kg + 96%

    Countries without normal trade relations.

  • 2935.90.33.00Sulfathiazole and Sulfathiazole, sodiumkg
    General
    Free
    Special (FTA)
    —

    No preferential rate published.

    Column 2
    15.4¢/kg + 133%

    Countries without normal trade relations.

  • 2935.90.42.00Salicylazosulfapyridine (Sulfasalazine); Sulfadiazine; Sulfaguanidine; Sulfamerizine; and Sulfapyridinekg
    General
    Free
    Special (FTA)
    —

    No preferential rate published.

    Column 2
    15.4¢/kg + 128.5%

    Countries without normal trade relations.

  • 2935.90.48.00Otherkg
    General
    6.5%
    Special (FTA)
    Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,MA,OM,P, PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    15.4¢/kg + 96%

    Countries without normal trade relations.

  • 2935.90.60.00Otherkg
    General
    6.5%
    Special (FTA)
    Free (A+,AU,BH,CL,CO,D, E,IL, JO,K, KR,MA,OM,P, PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    15.4¢/kg + 45%

    Countries without normal trade relations.

  • 2935.90.75.00Products described in additional U.S. note 3 to section VIkg
    General
    6.5%
    Special (FTA)
    Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,L,MA,OM,P, PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    15.4¢/kg + 57.5%

    Countries without normal trade relations.

  • 2935.90.95.00Otherkg
    General
    6.5%
    Special (FTA)
    Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,MA,OM,P, PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    15.4¢/kg + 57.5%

    Countries without normal trade relations.

This is the listed rate. Antidumping and countervailing duty orders, Chapter 99 actions and preference qualification all change what is actually collected, and classification is a judgement about your goods. Verify with your licensed customs broker before you file.

Other subheadings in heading 2935

Source: U.S. International Trade Commission (USITC) — 2026 HTS Revision 12, released 2026-07-21, published at hts.usitc.gov. A U.S. Government work in the public domain.