Product classification
HS code for Fertilizer tablets: 3105.10
Fertilizers, mineral or chemical, in tablets or similar forms or in packages of a gross weight not exceeding 10kg.
Classification of fertilizer tablets under HS 3105.10
Fertilizer tablets and similar small-format fertilizers are classified under HS code 3105.10. This code is found in Chapter 31, which covers all types of fertilizers. Heading 3105 specifically applies to mineral or chemical fertilizers containing two or three of the fertilizing elements nitrogen, phosphorus, and potassium (NPK), or products of this chapter put up in tablets or similar forms or in packages of a gross weight not exceeding 10 kg. The classification 3105.10 is unique because it is determined by the physical form or the packaging size rather than just the chemical composition. If a fertilizer is shaped into a tablet, spike, or pellet for easy application, or if it is packaged for retail sale in containers weighing 10 kg or less, it must be classified here. This rule applies even if the chemical composition would otherwise place it in headings 3102, 3103, or 3104.
- Covers
- Fertilizer tablets for houseplants
- Fertilizer spikes for trees or shrubs
- NPK fertilizers in 5 kg retail bags
- Mineral fertilizers in 10 kg buckets
- Slow-release fertilizer pellets in small retail packs
- Liquid fertilizers in small bottles (under 10 kg)
- Also under 3105.10
- Osmocote Smart-Release Plant Food
- Jobe's Fertilizer Spikes
- Miracle-Gro Shake 'n Feed
- Scotts Turf Builder (small bags)
- Espoma Organic Plant-tone (small bags)
Codes often confused with 3105.10
Common mistake. The most common error is classifying these products based solely on their chemical content under headings 3102 (nitrogenous), 3103 (phosphatic), or 3104 (potassic). However, Note 2 to Chapter 31 explicitly states that heading 3105 takes precedence if the goods are in tablets or packages not exceeding 10 kg. For example, urea in a 25 kg bag is 3102.10, but urea in a 5 kg bag is 3105.10. Another misclassification occurs with organic fertilizers (3101), which do not move to 3105.10 regardless of packaging size.
Top exporters and importers of HS 310510 (the code used for fertilizer tablets), 2025
In 2025, the largest exporter of HS 310510 (the code used for fertilizer tablets) in UN Comtrade data was China, with 64% of world exports; the largest importer in UN Comtrade data was Vietnam, with about 35% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 310510, not only fertilizer tablets.
Top exporters 2025 · share of world exports
- 1 China $847M 64% of world exports
- 2 Spain $96M 7.3% of world exports
- 3 Germany $59M 4.5% of world exports
World total: $1.3B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Vietnam* ~$378M 35% of world imports · partner records ↗
- 2 Brazil $38M 3.6% of world imports
- 3 United States $32M 3.0% of world imports
World total: $1.1B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for fertilizer tablets
Brazil classifies fertilizer tablets under NCM 3105.10.00: HS 3105.10 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
EU Regulatory Requirements
This product falls under the Carbon Border Adjustment Mechanism (CBAM). Importers to the EU must declare embedded carbon emissions and purchase CBAM certificates.
Questions about fertilizer tablets
What is the HS code for Fertilizer tablets?
The HS code for Fertilizer tablets is 310510 (Fertilizers, mineral or chemical; in tablets or similar forms or in packages of a gross weight not exceeding 10kg). Fertilizer tablets, regardless of their chemical composition, are classified under HS code 3105.10.
How do I classify Fertilizer tablets for customs?
Fertilizer tablets is classified under HS code 310510 — Fertilizers, mineral or chemical; in tablets or similar forms or in packages of a gross weight not exceeding 10kg. This is a 6-digit subheading level code.
What is the weight limit for this HS code?
This code applies to fertilizers in packages with a gross weight not exceeding 10 kilograms.
Which countries are the top exporters of fertilizer tablets (HS 310510)?
In 2025, the top exporters of HS 310510 (the code used for fertilizer tablets) in UN Comtrade data were China ($847M, 64% of world exports), Spain ($96M) and Germany ($59M). World exports came to about $1.3B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of fertilizer tablets (HS 310510)?
In 2025, the top importers of HS 310510 (the code used for fertilizer tablets) in UN Comtrade data were Vietnam (about $378M, 35% of world imports), Brazil ($38M) and the United States ($32M). World imports came to about $1.1B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Fertilizer tablets the same in all countries?
The base HS code 310510 for Fertilizer tablets is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for fertilizer tablets in Brazil?
In Brazil, fertilizer tablets (HS 310510) is classified under NCM 3105.10.00.