Product classification
HS code for Starch waste: 2303.10
Residues of starch manufacture and similar residues, whether or not in the form of pellets.
Classification of starch waste under HS 2303.10
Starch waste is classified under HS code 2303.10 because it consists of the residues remaining after the industrial extraction of starch from vegetable sources. Chapter 23 of the Harmonized System covers residues and waste from the food industries and prepared animal fodder. Heading 2303 specifically identifies residues of starch manufacture and similar residues. This classification applies to the by-products of the wet-milling process, where the starch is separated from the rest of the plant material. These residues are often used as high-protein or high-fiber components in animal feed. The classification remains 2303.10 regardless of whether the waste is in its natural state or has been compressed into pellets for easier handling and transport.
- Covers
- Corn gluten feed (residue of maize starch manufacture)
- Potato pulp resulting from starch extraction
- Maize steeping liquors (concentrated)
- Wheat starch manufacture residues
- Manioc (cassava) starch residues
- Rice starch manufacturing by-products
- Barley starch residues
- Also under 2303.10
- Cargill Corn Gluten Feed
- ADM Wheat Gluten Feed
- Roquette Potato Protein
- Tate & Lyle Starch Residues
- Ingredion Starch By-products
Codes often confused with 2303.10
Common mistake. Starch waste is often misclassified under HS code 1108, which is the code for the primary starch product itself. It is important to distinguish between the intended product (starch) and the byproduct (waste). Another common misclassification is HS code 2309, which covers prepared animal fodder. While starch waste is used in animal feed, 2309 is reserved for products that have been further processed or mixed with other ingredients to create a complete feed. If the product is a single-source residue from starch production, 2303.10 is the legally correct heading.
Top exporters and importers of HS 230310 (the code used for starch waste), 2025
In 2025, the largest exporter of HS 230310 (the code used for starch waste) in UN Comtrade data was the United States, with 34% of world exports; the largest importer in UN Comtrade data was Indonesia, with 9.6% 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 230310, not only starch waste.
Top exporters 2025 · share of world exports
- 1 United States $547M 34% of world exports
- 2 China $390M 24% of world exports
- 3 France $96M 5.9% of world exports
World total: $1.6B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Indonesia $170M 9.6% of world imports
- 2 South Korea $162M 9.2% of world imports
- 3 Netherlands $149M 8.4% of world imports
World total: $1.8B 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 that did not report are estimated from what other countries recorded trading with them. 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 starch waste
Brazil classifies starch waste under NCM 2303.10.00: HS 2303.10 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about starch waste
What is the HS code for Starch waste?
The HS code for Starch waste is 230310 (Residues of starch manufacture and similar residues; whether or not in the form of pellets). The HS code for residues of starch manufacture, commonly known as starch waste, is 2303.10.
How do I classify Starch waste for customs?
Starch waste is classified under HS code 230310 — Residues of starch manufacture and similar residues; whether or not in the form of pellets. This is a 6-digit subheading level code.
Is corn gluten feed classified under this code?
Yes, corn gluten feed that is a direct residue of the maize starch manufacturing process is classified under HS code 2303.10.
Which countries are the top exporters of starch waste (HS 230310)?
In 2025, the top exporters of HS 230310 (the code used for starch waste) in UN Comtrade data were the United States ($547M, 34% of world exports), China ($390M) and France ($96M). World exports came to about $1.6B, 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 starch waste (HS 230310)?
In 2025, the top importers of HS 230310 (the code used for starch waste) in UN Comtrade data were Indonesia ($170M, 9.6% of world imports), South Korea ($162M) and the Netherlands ($149M). World imports came to about $1.8B, 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 Starch waste the same in all countries?
The base HS code 230310 for Starch waste 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 starch waste in Brazil?
In Brazil, starch waste (HS 230310) is classified under NCM 2303.10.00.