HS Code for Compost

Compost is classified under HS code 3101.00, which specifically covers fertilizers of animal or vegetable origin. This classification applies whether the materials are mixed together or chemically treated to enhance their fertilizing properties. The fundamental logic for this classification is that compost is produced through the biological decomposition of organic matter, resulting in a product used primarily to enrich soil nutrients. Because it is derived from natural organic sources rather than synthetic chemical processes, it falls squarely within the scope of heading 3101. This heading includes products produced by the mixing or chemical treatment of animal or vegetable products, provided they are not in the form of tablets or similar prepared forms, which might move them to heading 3105.

Products Included

• Garden compost derived from decomposed plant matter
• Mushroom compost (spent substrate)
• Decomposed animal manure mixed with vegetable waste
• Organic soil conditioners of animal or vegetable origin
• Chemically treated organic waste for soil enrichment

Common Misclassification

Compost is frequently misclassified under HS code 2703.00, which is reserved for peat. While both are organic soil amendments, peat is a naturally occurring geogenic material, whereas compost is a manufactured or processed product. Another common error is using HS code 3105.90 for compound fertilizers. Heading 3105 is intended for mineral or chemical fertilizers containing multiple nutrients or for fertilizers of any kind put up in tablets or small packages. If compost is sold in small retail packages (e.g., under 10kg), it may actually shift from 3101 to 3105.10.

FAQ

What is the HS code for compost?

The primary HS code for bulk compost of animal or vegetable origin is 3101.00.

Is vermicompost classified differently?

No, vermicompost (compost produced using worms) is still considered a fertilizer of animal or vegetable origin and remains under HS code 3101.00.