Chapter 31 — Fertilizers
U.S. customs duties, top product codes, and top source countries for HTS Chapter 31 imports, since January 2025.
Cumulative Customs Duties
Source: U.S. Census Bureau · Since January 2025$56M
Estimated customs duties on Chapter 31 imports since January 1, 2025, calculated from Census Bureau trade data.
Top HTS Codes by Duties
Cumulative since January 2025| HTS Code | Description | Duties |
|---|---|---|
| 3102.10.00.10 | Solid urea | $13M |
| 3103.11.00.00 | Containing by weight 35 percent or more of diphosphorous pentaoxide (P2O5) | $11M |
| 3102.80.00.00 | Mixtures of urea and ammonium nitrate in aqueous or ammoniacal solution | $9M |
| 3101.00.00.00 | Animal or vegetable fertilizers, whether or not mixed together or chemically treated; fertilizers produced by the mixing or chemical treatment of animal or vegetable products | $4M |
| 3102.21.00.00 | Ammonium sulfate | $4M |
| 3102.60.00.00 | Double salts and mixtures of calcium nitrate and ammonium nitrate | $3M |
| 3105.90.00.50 | Other | $3M |
| 3102.10.00.50 | Other | $2M |
| 3102.50.00.00 | Sodium nitrate | $1M |
| 3105.30.00.00 | Diammonium hydrogenorthophosphate (Diammonium phosphate) | $1M |
Top Source Countries by Duties
Cumulative since January 2025| Country | Duties |
|---|---|
| Trinidad and Tobago | $11M |
| Israel | $10M |
| China | $5M |
| Belgium | $4M |
| Algeria | $4M |
| Norway | $3M |
| Netherlands | $3M |
| Egypt | $2M |
| Australia | $2M |
| Malaysia | $2M |