This category covers raw agricultural materials used as industrial inputs rather than for direct consumption. Examples include cotton linters (used in paper, explosives, and chemical cellulose production), raw wool destined for textile mills, and other unprocessed plant or animal materials entering industrial supply chains. The key criterion is that the material is unprocessed and destined for industrial rather than food or feed use.

For plant-derived materials in this category, USDA APHIS phytosanitary certification is generally required by importing countries to attest freedom from regulated pests and diseases. Requirements vary by destination country and specific commodity. Exporters should obtain current import conditions from the destination country's national plant protection organization well before shipment to avoid delays.