Product classification
HS code for High-grade superphosphate: 3103.11
Fertilizers, mineral or chemical, phosphatic, superphosphates, containing by weight 35% or more of diphosphorus pentaoxide (P2O5).
Classification of high-grade superphosphate under HS 3103.11
High-grade superphosphate is classified under HS code 3103.11. This classification is determined by the chemical composition of the phosphatic fertilizer, specifically the concentration of diphosphorus pentaoxide (P2O5). According to the Harmonized System, mineral or chemical phosphatic fertilizers are grouped under heading 3103. The subheading 3103.11 is strictly reserved for superphosphates that contain a weight of 35% or more of P2O5. This high concentration typically refers to Triple Superphosphate (TSP), which is produced by reacting phosphate rock with phosphoric acid, rather than the sulfuric acid used for single superphosphate. The classification process requires precise laboratory analysis to confirm the phosphorus content, as the percentage determines whether the product falls under this specific high-grade category or the residual category for lower-grade superphosphates (3103.19). Proper classification is essential for international trade, as many jurisdictions apply different tariff rates, environmental regulations, or agricultural subsidies based on the nutrient density of the fertilizer. Furthermore, if the superphosphate is presented in tablets or similar forms, or in packages with a gross weight not exceeding 10 kg, it must be classified under heading 3105.10, regardless of the chemical concentration. The 35% threshold is a hard limit established by the World Customs Organization to standardize the trade of concentrated fertilizers globally.
- Covers
- Triple Superphosphate (TSP) with 46% P2O5 content
- Concentrated superphosphate exceeding 35% P2O5
- Granulated high-analysis phosphatic fertilizers
- Double superphosphate meeting the 35% threshold
- Also under 3103.11
- Mosaic Triple Superphosphate
- OCP Group TSP
- PhosAgro TSP
- ICL Specialty Fertilizers TSP
- EuroChem TSP.
Codes often confused with 3103.11
Common mistake. The most frequent misclassification occurs with HS code 3103.19, which is used for superphosphates containing less than 35% P2O5. Another common error is using 3105.20, 3105.30, or 3105.40, which are reserved for fertilizers containing two or three fertilizing elements (nitrogen, phosphorus, and potassium). If the product contains any nitrogen, it cannot stay in 3103.
Top exporters and importers of HS 310311 (the code used for high-grade superphosphate), 2025
In 2025, the largest exporter of HS 310311 (the code used for high-grade superphosphate) in UN Comtrade data was Morocco, with 82% of world exports; the largest importer in UN Comtrade data was Brazil, with 28% 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 310311, not only high-grade superphosphate.
Top exporters 2025 · share of world exports
- 1 Morocco $4.3B 82% of world exports
- 2 China $319M 6.1% of world exports
- 3 Israel $291M 5.5% of world exports
World total: $5.3B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Brazil $887M 28% of world imports
- 2 Bangladesh* ~$693M 21% of world imports · partner records ↗
- 3 India $537M 17% of world imports
World total: $3.2B 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 high-grade superphosphate
Brazil classifies high-grade superphosphate under NCM 3103.11.00: HS 3103.11 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about high-grade superphosphate
What is the HS code for High-grade superphosphate?
The HS code for High-grade superphosphate is 310311 (Fertilizers, mineral or chemical; phosphatic, superphosphates, containing by weight 35% or more of diphosphorus pentaoxide (P2O5)). The specific HS code is 3103.11, which applies to superphosphates with a P2O5 concentration of 35% or more by weight.
How do I classify High-grade superphosphate for customs?
High-grade superphosphate is classified under HS code 310311 — Fertilizers, mineral or chemical; phosphatic, superphosphates, containing by weight 35% or more of diphosphorus pentaoxide (P2O5). This is a 6-digit subheading level code.
Does this code include Monoammonium Phosphate (MAP)?
No, MAP contains nitrogen and is therefore classified under heading 3105, specifically 3105.40, rather than the purely phosphatic heading 3103.
Which countries are the top exporters of high-grade superphosphate (HS 310311)?
In 2025, the top exporters of HS 310311 (the code used for high-grade superphosphate) in UN Comtrade data were Morocco ($4.3B, 82% of world exports), China ($319M) and Israel ($291M). World exports came to about $5.3B, 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 high-grade superphosphate (HS 310311)?
In 2025, the top importers of HS 310311 (the code used for high-grade superphosphate) in UN Comtrade data were Brazil ($887M, 28% of world imports), Bangladesh (about $693M) and India ($537M). World imports came to about $3.2B, 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 High-grade superphosphate the same in all countries?
The base HS code 310311 for High-grade superphosphate 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 high-grade superphosphate in Brazil?
In Brazil, high-grade superphosphate (HS 310311) is classified under NCM 3103.11.00.