HTS 2929Compounds with other nitrogen function

Product or HTS code

Rate lines18

Code	Description	General	Special	Column 2	Units
2929.10	2929.10Isocyanates
2929.10.10.00	2929.10.10.00Toluenediisocyanates (unmixed)General 6.5% · Special Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 15.4¢/kg + 40% · kg	6.5%	Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	15.4¢/kg + 40%	kg
2929.10.15.00	2929.10.15.00Mixtures of 2,4- and 2,6-toluenediisocyanatesGeneral 6.5% · Special Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 15.4¢/kg + 43.5% · kg	6.5%	Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	15.4¢/kg + 43.5%	kg
2929.10.20.00	2929.10.20.00Bitolylene diisocyanate (TODI);o-Isocyanic acid, o-tolyl ester; and Xylene diisocyanateGeneral 5.8% · Special Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG) · Column 2 15.4¢/kg + 40% · kg	5.8%	Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG)	15.4¢/kg + 40%	kg
2929.10.27.00	2929.10.27.00N-Butylisocyanate; Cyclohexyl isocyanate; 1-Isocyanato-3-(trifluoromethyl) benzene; 1,5-Naphthalene diisocyanate; and Octadecyl isocyanateGeneral Free · Column 2 15.4¢/kg + 52% · kg	Free		15.4¢/kg + 52%	kg
2929.10.30.00	2929.10.30.003,4-DichlorophenylisocyanateGeneral 6.5% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) · Column 2 15.4¢/kg + 52% · kg	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	15.4¢/kg + 52%	kg
2929.10.35.00	2929.10.35.001,6-Hexamethylene diisocyanateGeneral 6.5% · Special Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG) · Column 2 15.4¢/kg + 52% · kg	6.5%	Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG)	15.4¢/kg + 52%	kg
	Other
2929.10.55.00	2929.10.55.00Products described in additional U.S. note 3 to section VIGeneral 6.5% · Special Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG) · Column 2 15.4¢/kg + 52% · kg	6.5%	Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG)	15.4¢/kg + 52%	kg
2929.10.80	2929.10.80OtherGeneral 6.5% · Special Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG) · Column 2 15.4¢/kg + 52%	6.5%	Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG)	15.4¢/kg + 52%
2929.10.80.10	2929.10.80.10Methylenedi-p-phenylene isocyanate (MDI)General 6.5% · Special Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG) · Column 2 15.4¢/kg + 52% · kg	6.5%	Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG)	15.4¢/kg + 52%	kg
2929.10.80.90	2929.10.80.90OtherGeneral 6.5% · Special Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG) · Column 2 15.4¢/kg + 52% · kg	6.5%	Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG)	15.4¢/kg + 52%	kg
2929.90	2929.90Other
2929.90.05.00	2929.90.05.002,2'-Bis(4-cyanatophenyl)-1,1,1,3,3,3-hexafluoro- propane; 2,2-Bis((4-cyanatophenyl) propane; 1,1-Ethylidenebis (phenyl-4-cyanate); 4,4'-Methylene bis(2,6-dimethylphenylcyanate); and 1,3-Phenylenebis (1-methylethylidenebis) cyanic acid, 1,4-phenylene esterGeneral Free · Column 2 15.4¢/kg + 52% · kg	Free		15.4¢/kg + 52%	kg
	Other
	Aromatic
2929.90.15.00	2929.90.15.00Products described in additional U.S. note 3 to section VIGeneral 6.5% · Special Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,MA,OM,P, PA,PE,S,SG) · Column 2 15.4¢/kg + 52% · kg	6.5%	Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,MA,OM,P, PA,PE,S,SG)	15.4¢/kg + 52%	kg
2929.90.20.00	2929.90.20.00OtherGeneral 6.5% · Special Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,MA,OM,P, PA,PE,S,SG) · Column 2 15.4¢/kg + 52% · kg	6.5%	Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,MA,OM,P, PA,PE,S,SG)	15.4¢/kg + 52%	kg
2929.90.50	2929.90.50OtherGeneral 6.5% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 30.5%	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	30.5%
	N,N-Dialkyl (methyl, ethyl,n-propyl or isopropyl) phosphoramidic dihalidesGeneral 6.5% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 30.5%	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	30.5%
2929.90.50.15	2929.90.50.15N,N-Dimethylphosphoramidic dichlorideGeneral 6.5% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 30.5% · kg	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	30.5%	kg
2929.90.50.18	2929.90.50.18OtherGeneral 6.5% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 30.5% · kg	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	30.5%	kg
2929.90.50.20	2929.90.50.20Dialkyl (methyl, ethyl, n-propyl or isopropyl)-N,N-dialkyl (methyl, ethyl, n-propyl or isopropyl) phosphoramidatesGeneral 6.5% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 30.5% · kg	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	30.5%	kg
2929.90.50.30	2929.90.50.30N-(Dialkyl (≤C10, incl. cycloalkyl) amino))alkylidene (H or ≤C10, incl. cycloalkyl) phosphonamidic fluorides and corresponding alkylated or protonated saltsGeneral 6.5% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 30.5% · kg	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	30.5%	kg
2929.90.50.40	2929.90.50.40O-Alkyl (H or ≤C10, incl. cycloalkyl) N-(dialkyl (≤C10, incl. cycloalkyl) amino))alkylidene (H or ≤C10, incl. cycloalkyl) phosphoramidofluoridates and corresponding alkylated or protonated saltsGeneral 6.5% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 30.5% · kg	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	30.5%	kg
2929.90.50.95	2929.90.50.95OtherGeneral 6.5% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 30.5% · kg	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	30.5%	kg
	X. ORGANO-INORGANIC COMPOUNDS, HETEROCYCLIC COMPOUNDS, NUCLEIC ACIDS AND THEIR SALTS, AND SULFONAMIDES

2026 HTS Revision 21 (October 9, 2026)

Duty by country of origin

Rate line	China20.95% of imports	Germany20.43% of imports	Hungary16.79% of imports	South Korea11.23% of imports	India7.85% of imports	Japan5.34% of imports	Thailand4.22% of imports	United Kingdom2.77% of imports	Belgium2.51% of imports	Switzerland1.39% of imports
2929.10.10.00Toluenediisocyanates (unmixed)	44%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.71	16.5%9903.05.44	12.5%9903.05.49	19%9903.05.77	16.5%9903.05.81	10%9903.05.39	12.5%9903.05.74
2929.10.15.00Mixtures of 2,4- and 2,6-toluenediisocyanates	44%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.71	16.5%9903.05.44	12.5%9903.05.49	19%9903.05.77	16.5%9903.05.81	10%9903.05.39	12.5%9903.05.74
2929.10.20.00Bitolylene diisocyanate (TODI);o-Isocyanic acid, o-tolyl ester; and Xylene diisocyanate	43.3%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.71	15.8%9903.05.44	12.5%9903.05.49	18.3%9903.05.77	15.8%9903.05.81	10%9903.05.39	12.5%9903.05.74
2929.10.27.00N-Butylisocyanate; Cyclohexyl isocyanate; 1-Isocyanato-3-(trifluoromethyl) benzene; 1,5-Naphthalene diisocyanate; and Octadecyl isocyanate	37.5%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.71	10%9903.05.44	12.5%9903.05.49	12.5%9903.05.77	10%9903.05.81	10%9903.05.39	12.5%9903.05.74
2929.10.30.003,4-Dichlorophenylisocyanate	19%9903.05.31	10%9903.05.39	10%9903.05.39	12.5%9903.05.71	16.5%9903.05.44	12.5%9903.05.49	19%9903.05.77	16.5%9903.05.81	10%9903.05.39	12.5%9903.05.74
2929.10.35.001,6-Hexamethylene diisocyanate	44%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.71	16.5%9903.05.44	12.5%9903.05.49	19%9903.05.77	16.5%9903.05.81	10%9903.05.39	12.5%9903.05.74
2929.10.55.00Products described in additional U.S. note 3 to section VI	44%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.71	16.5%9903.05.44	12.5%9903.05.49	19%9903.05.77	16.5%9903.05.81	10%9903.05.39	12.5%9903.05.74
2929.10.80.10Methylenedi-p-phenylene isocyanate (MDI)	From 19%9903.05.31AD/CVD may apply	10%9903.05.39	10%9903.05.39	12.5%9903.05.71	16.5%9903.05.44	12.5%9903.05.49	19%9903.05.77	16.5%9903.05.81	10%9903.05.39	12.5%9903.05.74
2929.10.80.90Other	From 19%9903.05.31AD/CVD may apply	10%9903.05.39	10%9903.05.39	12.5%9903.05.71	16.5%9903.05.44	12.5%9903.05.49	19%9903.05.77	16.5%9903.05.81	10%9903.05.39	12.5%9903.05.74
2929.90.05.002,2'-Bis(4-cyanatophenyl)-1,1,1,3,3,3-hexafluoro- propane; 2,2-Bis((4-cyanatophenyl) propane; 1,1-Ethylidenebis (phenyl-4-cyanate); 4,4'-Methylene bis(2,6-dimethylphenylcyanate); and 1,3-Phenylenebis (1-methylethylidenebis) cyanic acid, 1,4-phenylene ester	37.5%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.71	10%9903.05.44	12.5%9903.05.49	12.5%9903.05.77	10%9903.05.81	10%9903.05.39	12.5%9903.05.74
2929.90.15.00Products described in additional U.S. note 3 to section VI	44%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.71	16.5%9903.05.44	12.5%9903.05.49	19%9903.05.77	16.5%9903.05.81	10%9903.05.39	12.5%9903.05.74
2929.90.20.00Other	44%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.71	16.5%9903.05.44	12.5%9903.05.49	19%9903.05.77	16.5%9903.05.81	10%9903.05.39	12.5%9903.05.74
2929.90.50.15N,N-Dimethylphosphoramidic dichloride	44%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.71	16.5%9903.05.44	12.5%9903.05.49	19%9903.05.77	16.5%9903.05.81	10%9903.05.39	12.5%9903.05.74
2929.90.50.18Other	44%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.71	16.5%9903.05.44	12.5%9903.05.49	19%9903.05.77	16.5%9903.05.81	10%9903.05.39	12.5%9903.05.74
2929.90.50.20Dialkyl (methyl, ethyl, n-propyl or isopropyl)-N,N-dialkyl (methyl, ethyl, n-propyl or isopropyl) phosphoramidates	44%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.71	16.5%9903.05.44	12.5%9903.05.49	19%9903.05.77	16.5%9903.05.81	10%9903.05.39	12.5%9903.05.74
2929.90.50.30N-(Dialkyl (≤C10, incl. cycloalkyl) amino))alkylidene (H or ≤C10, incl. cycloalkyl) phosphonamidic fluorides and corresponding alkylated or protonated salts	44%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.71	16.5%9903.05.44	12.5%9903.05.49	19%9903.05.77	16.5%9903.05.81	10%9903.05.39	12.5%9903.05.74
2929.90.50.40O-Alkyl (H or ≤C10, incl. cycloalkyl) N-(dialkyl (≤C10, incl. cycloalkyl) amino))alkylidene (H or ≤C10, incl. cycloalkyl) phosphoramidofluoridates and corresponding alkylated or protonated salts	44%9903.05.319903.88.03	10%9903.05.39	10%9903.05.39	12.5%9903.05.71	16.5%9903.05.44	12.5%9903.05.49	19%9903.05.77	16.5%9903.05.81	10%9903.05.39	12.5%9903.05.74
2929.90.50.95Other	From 19%9903.05.31Depends on product facts	10%9903.05.39	10%9903.05.39	12.5%9903.05.71	16.5%9903.05.44	12.5%9903.05.49	19%9903.05.77	16.5%9903.05.81	10%9903.05.39	12.5%9903.05.74

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).