Heading 3104

Mineral or chemical fertilizers, potassic

4 declarable lines

Heading 3104 covers mineral or chemical fertilizers that supply potassium as the only primary fertilizer element. It is split into potassium chloride, potassium sulfate, and other potassic fertilizers. The potassium chloride lines depend on whether the K2O content is not more than 62% or more than 62% by weight.

Products in this heading

Potassium chloride fertilizer
Muriate of potash
Potassium chloride fertilizer with 60% K2O
Potassium chloride fertilizer with 63% K2O
Potassium sulfate fertilizer
Sulfate of potash
Other potassic fertilizer

How to choose the right subheading

Confirm the product supplies potassium as the only primary fertilizer element; if nitrogen or phosphorus is also present, consider heading 3105.
Identify the material: potassium chloride, potassium sulfate, or another potassic fertilizer.
For potassium chloride, measure K2O content: not more than 62% uses 3104.20.00.10; more than 62% uses 3104.20.00.50.
Check the form and package weight: tablets or similar forms, or packages of 10 kg or less gross weight, go to heading 3105.
Use 3104.90.01.00 for potassic fertilizers that are not potassium chloride or potassium sulfate.

Often confused with

Ammonium nitrate
It is a nitrogenous fertilizer, not potassic.
Heading 3102
Superphosphate
It is a phosphatic fertilizer, not potassic.
Heading 3103
Potassium nitrate
It contains both nitrogen and potassium, so it is a multi-element fertilizer.
Heading 3105
Diammonium phosphate
It contains nitrogen and phosphorus, so it is not a single potassic fertilizer.
Heading 3105
Potassic fertilizer in packages of 10 kg or less gross weight
Small packages and tablet forms are classified in heading 3105.
Heading 3105

Frequently asked questions

What is the HTS code for potassium chloride fertilizer with 60% K2O?

Use 3104.20.00.10; its general (MFN) rate is Free.

What is the duty on potassium sulfate fertilizer?

Potassium sulfate is classified under 3104.30.00.00, and its general (MFN) rate is Free.

How do I classify potassium chloride fertilizer with 63% K2O?

Classify it under 3104.20.00.50; its general (MFN) rate is Free.

Guide written from the official schedule text. Rates quoted are general (MFN) rates; check the line page for trade agreement rates and the classification of your exact product.