HTS 2920Esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides) and their salts; their halogenated, sulfonated, nitrated or nitrosated derivatives

Product or HTS code

Rate lines14

Code	Description	General	Special	Column 2	Units
	Thiophosphoric esters (phosphorodithioates) and their salts, their halogenated, sulfonated, nitrated or nitrosated derivatives
2920.11.00.00	2920.11.00.00Parathion (ISO) and parathion-methyl (ISO) (methyl-parathion)General Free · Column 2 15.4¢/kg + 64.5% · kg	Free		15.4¢/kg + 64.5%	kg
2920.19	2920.19Other
	Aromatic
2920.19.10.00	2920.19.10.00O,O-Dimethyl-O-(4-nitro-m-tolyl)phosphoro- thioate (Fenitrothion)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 + 41% · kg	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	15.4¢/kg + 41%	kg
2920.19.40.00	2920.19.40.00OtherGeneral 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 + 64.5% · 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 + 64.5%	kg
2920.19.50.00	2920.19.50.00OtherGeneral 3.7% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 25% · kg	3.7%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	25%	kg
	Phosphite esters and their salts; their halogenated, sulfonated, nitrated or nitrosated derivatives
2920.21.00.00	2920.21.00.00Dimethyl phosphiteGeneral 3.7% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 25% · kg	3.7%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	25%	kg
2920.22.00.00	2920.22.00.00Diethyl phosphiteGeneral 3.7% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 25% · kg	3.7%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	25%	kg
2920.23.00.00	2920.23.00.00Trimethyl phosphiteGeneral 3.7% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 25% · kg	3.7%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	25%	kg
2920.24.00.00	2920.24.00.00Triethyl phosphiteGeneral 3.7% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 25% · kg	3.7%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	25%	kg
2920.29.00.00	2920.29.00.00OtherGeneral 3.7% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 25% · kg	3.7%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	25%	kg
2920.30.00.00	2920.30.00.00Endosulfan (ISO)General 3.7% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 25% · kg	3.7%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	25%	kg
2920.90	2920.90Other
	Aromatic
2920.90.10.00	2920.90.10.00PesticidesGeneral 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 + 64.5% · kg	6.5%	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	15.4¢/kg + 64.5%	kg
2920.90.20.00	2920.90.20.00OtherGeneral 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 + 53% · 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 + 53%	kg
2920.90.51	2920.90.51OtherGeneral 3.7% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 25%	3.7%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	25%
2920.90.51.10	2920.90.51.10Ethylene carbonate (1,3-dioxolan-2-one)General 3.7% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 25% · kg	3.7%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	25%	kg
2920.90.51.50	2920.90.51.50OtherGeneral 3.7% · Special Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) · Column 2 25% · kg	3.7%	Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)	25%	kg
	IX. NITROGEN-FUNCTION COMPOUNDS

2026 HTS Revision 21 (October 9, 2026)

Duty by country of origin

Rate line	China18.99% of imports	France14.11% of imports	Singapore13.33% of imports	India12.64% of imports	South Korea11.39% of imports	Germany8.62% of imports	Indonesia5.79% of imports	Taiwan3.48% of imports	Mexico2.87% of imports	Belgium2.19% of imports
2920.11.00.00Parathion (ISO) and parathion-methyl (ISO) (methyl-parathion)	37.5%9903.05.319903.88.03	10%9903.05.39	12.5%9903.05.68	10%9903.05.44	12.5%9903.05.71	10%9903.05.39	10%9903.05.45	10%9903.05.76	10%9903.05.55	10%9903.05.39
2920.19.10.00O,O-Dimethyl-O-(4-nitro-m-tolyl)phosphoro- thioate (Fenitrothion)	44%9903.05.319903.88.03	10%9903.05.39	19%9903.05.68	16.5%9903.05.44	12.5%9903.05.71	10%9903.05.39	16.5%9903.05.45	10%9903.05.76	16.5%9903.05.55	10%9903.05.39
2920.19.40.00Other	44%9903.05.319903.88.03	10%9903.05.39	19%9903.05.68	16.5%9903.05.44	12.5%9903.05.71	10%9903.05.39	16.5%9903.05.45	10%9903.05.76	16.5%9903.05.55	10%9903.05.39
2920.19.50.00Other	41.2%9903.05.319903.88.03	10%9903.05.39	16.2%9903.05.68	13.7%9903.05.44	12.5%9903.05.71	10%9903.05.39	13.7%9903.05.45	10%9903.05.76	13.7%9903.05.55	10%9903.05.39
2920.21.00.00Dimethyl phosphite	41.2%9903.05.319903.88.03	10%9903.05.39	16.2%9903.05.68	13.7%9903.05.44	12.5%9903.05.71	10%9903.05.39	13.7%9903.05.45	10%9903.05.76	13.7%9903.05.55	10%9903.05.39
2920.22.00.00Diethyl phosphite	16.2%9903.05.31	10%9903.05.39	16.2%9903.05.68	13.7%9903.05.44	12.5%9903.05.71	10%9903.05.39	13.7%9903.05.45	10%9903.05.76	13.7%9903.05.55	10%9903.05.39
2920.23.00.00Trimethyl phosphite	41.2%9903.05.319903.88.03	10%9903.05.39	16.2%9903.05.68	13.7%9903.05.44	12.5%9903.05.71	10%9903.05.39	13.7%9903.05.45	10%9903.05.76	13.7%9903.05.55	10%9903.05.39
2920.24.00.00Triethyl phosphite	41.2%9903.05.319903.88.03	10%9903.05.39	16.2%9903.05.68	13.7%9903.05.44	12.5%9903.05.71	10%9903.05.39	13.7%9903.05.45	10%9903.05.76	13.7%9903.05.55	10%9903.05.39
2920.29.00.00Other	41.2%9903.05.319903.88.03	10%9903.05.39	16.2%9903.05.68	13.7%9903.05.44	12.5%9903.05.71	10%9903.05.39	13.7%9903.05.45	10%9903.05.76	13.7%9903.05.55	10%9903.05.39
2920.30.00.00Endosulfan (ISO)	41.2%9903.05.319903.88.03	10%9903.05.39	16.2%9903.05.68	13.7%9903.05.44	12.5%9903.05.71	10%9903.05.39	13.7%9903.05.45	10%9903.05.76	13.7%9903.05.55	10%9903.05.39
2920.90.10.00Pesticides	44%9903.05.319903.88.03	10%9903.05.39	19%9903.05.68	16.5%9903.05.44	12.5%9903.05.71	10%9903.05.39	16.5%9903.05.45	10%9903.05.76	16.5%9903.05.55	10%9903.05.39
2920.90.20.00Other	44%9903.05.319903.88.03	10%9903.05.39	19%9903.05.68	16.5%9903.05.44	12.5%9903.05.71	10%9903.05.39	16.5%9903.05.45	10%9903.05.76	16.5%9903.05.55	10%9903.05.39
2920.90.51.10Ethylene carbonate (1,3-dioxolan-2-one)	23.7%9903.05.319903.88.15	10%9903.05.39	16.2%9903.05.68	13.7%9903.05.44	12.5%9903.05.71	10%9903.05.39	13.7%9903.05.45	10%9903.05.76	13.7%9903.05.55	10%9903.05.39
2920.90.51.50Other	23.7%9903.05.319903.88.15	10%9903.05.39	16.2%9903.05.68	13.7%9903.05.44	12.5%9903.05.71	10%9903.05.39	13.7%9903.05.45	10%9903.05.76	13.7%9903.05.55	10%9903.05.39

Total duty on a $10,000 ocean shipment entered 2026-10-14, before customs fees. Origins are the leading sources of US imports under this heading in 2025 (US Census Bureau).