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HSChapter 23
U.S. exports of starch manufacturing residues: corn gluten feed, corn gluten meal & similar (HS 230310) totaled $59.0M in July 2026.
Importers of Starch Manufacturing Residues: Corn Gluten Feed, Corn Gluten Meal & Similar paid $121K in duties in July 2026 — an effective duty rate of 11% on $1.1M in dutiable value, based on actual customs collections rather than the published tariff schedule. Starch Manufacturing Residues: Corn Gluten Feed, Corn Gluten Meal & Similar imports of $2.3M in July 2026 ran 14% below the year-to-date monthly average of $2.6M.
Last updated: July 2026 dataCorn gluten feed and corn gluten meal — the two principal co-products of corn wet milling — are separately enumerated at the 10-digit level (2303100010 and 2303100020 respectively), reflecting their distinct protein concentrations and feed-market positioning: gluten meal is a high-protein ingredient used in poultry and aquaculture diets, while gluten feed is a lower-protein, higher-fiber product suited to ruminant rations. A third line (2303100040) captures starch-manufacturing residues not elsewhere specified, including potato and tapioca starch processing waste. Canada and France lead US import supply, with Germany and Denmark also significant sources reflecting Europe's substantial starch-processing industry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
196 shipments/mo
US Customs and Border Protection does not set a fixed protein percentage as the sole classification criterion, but industry convention and CBP rulings generally treat corn gluten meal as the high-protein fraction (typically 60% crude protein on a dry-matter basis) and corn gluten feed as the lower-protein combined fraction. Importers should include a proximate analysis certificate with each shipment to support the declared 10-digit line.
Yes. Line 2303100040 covers starch-manufacturing residues not elsewhere specified, which can include residues from potato, tapioca, and other non-corn starch operations. The key requirement is that the residue originates from a starch extraction process rather than a milling or fermentation process, which would direct it to a different heading.
Subheading 1 of 3 in heading 2303
Subheading 230310 · $2.3M of $4.6M
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ImportsExports
Imports
$2.3MYoY · Pro
Exports
$59.0MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2303100040 | Residues of Starch Manufctr & Simlr Residues NESOI | $1.2M | 9.11% | 83.41% | $113K |
| 2303100010 | Corn Gluten Feed, Whether or not in Pellets | $707K | 1.11% | 9.76% | $8K |
| 2303100020 | Corn Gluten Meal, Whether or not in Pellets | $328K | 0.00% | 0.00% | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2303100020 | Corn Gluten Meal, Whether or not in Pellets | $41.3M |
| 2303100010 | Corn Gluten Feed, Whether or not in Pellets | $15.8M |
| 2303100040 | Residues of Starch Manufctr & Simlr Residues NESOI | $1.9M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Exports · July 2026
destination
customs district
origin
entry
rate provision · imports
51.5% enters free of duty; the effective duty rate is 5.31%.