2017 Edition

national industry 311221

Wet Corn Milling


This U.S. industry comprises establishments primarily engaged in wet milling corn and other vegetables (except to make ethyl alcohol). Examples of products made in these establishments are corn sweeteners, such as glucose, dextrose, and fructose; corn oil; and starches (except laundry).

The immediate parent of national industry 311221 is international industry 31122: Starch and Vegetable Fats and Oils Manufacturing

2017 NAICS Edition Cross References

  • Refining and/or blending corn oil from purchased oils--are classified in U.S. Industry 311225, Fats and Oils Refining and Blending;
  • Manufacturing sweetening syrups from corn syrup and starch base dessert powders--are classified in U.S. Industry 311999, All Other Miscellaneous Food Manufacturing;
  • Reducing maple sap to maple syrup--are classified in U.S. Industry 111998, All Other Miscellaneous Crop Farming;
  • Milling (except wet milling) corn--are classified in U.S. Industry 311211, Flour Milling;
  • Wet milling corn to produce nonpotable ethyl alcohol--are classified in U.S. Industry 325193, Ethyl Alcohol Manufacturing; and
  • Manufacturing laundry starches--are classified in U.S. Industry 325612, Polish and Other Sanitation Good Manufacturing.


The NAICS editions in which this code was present are indicated below. In the event that a code was changed from the prior edition the equivalent value in that edition is provided for reference.

Edition Value
2002 311221 -
2007 311221 -
2012 311221 -
2017 311221 -

Standard Industrial Classification (SIC) Mappings

  1. 2046 - Wet Corn Milling

Insurance Industry Mappings

The US Property and Casualty Insurance Industry may use the following classification descriptions which might encompass national industry 311221, Wet Corn Milling:

  1. corn product manufacturing
  2. dextrine manufacturing
  3. fat oil manufacturing animal or vegetable including tank farm animal reduction lard refining
  4. feed milling
  5. food manufacturing
  6. glucose manufacturing
  7. grain and oilseed milling
  8. grain milling
  9. manufacturing
  10. oil fat manufacturing animal or vegetable including tank farm animal reduction lard refining
  11. oil manufacturing or refining vegetable not otherwise classified
  12. oil manufacturing vegetable solvent extraction process
  13. potato processing not frozen
  14. starch and vegetable fat and oil manufacturing
  15. starch manufacturing
  16. vegetable oil manufacturing
  17. wet corn milling


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