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             US HTS CODE | Harmonized Tariff Schedule HS code & Tariffs Search Service (2025 HTS Revision 26 (10/31/2025))
| HTS Code | 3102400000 | 2918290400 | 
| Article Description | Mixtures of ammonium nitrate with calcium carbonate or other inorganic nonfertilizing substances | 2,3-Cresotic acid; 2-Hydroxybenzoic acid, calcium salt; 1-Hydroxy-2-naphthoic acid; 2-Hydroxy-1-naphthoic acid; 1-Hydroxy-2-naphthoic acid, phenyl ester;α-Resorcylic acid;γ-Resorcylic acid; and 5-Sulfosalicylic acid | 
| Quota of Quantity | -- | -- | 
| Unit of Quantity | [t] | [kg] | 
| Rates of Duty (1-General) | Free | 5.8% | 
| Rates of Duty (1-Special) | -- | Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,L,MA,OM,P,PA,PE,S,SG) | 
| Rates of Duty (2-Cuba and North Korea) | Free | 15.4¢/kg + 40% | 
| Footnotes | [{columns=[general], value=See 9903.88.03., type=endnote}] | [{columns=[general], value=See 9903.88.03. , type=endnote}] | 
| Additional Duty | -- | -- | 
| Additional Duty(products of China) | -- | -- | 
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