Bulk green tea is typically traded by grade designations — such as gunpowder, sencha, or fannings — that reflect leaf size, processing method, and intended end use. Extract manufacturers may prioritize high-polyphenol or high-EGCG grades, while blenders focus on flavor consistency. Unlike retail packs, bulk shipments often require moisture content certificates and pesticide residue test reports as standard commercial documentation.

The 3 kg threshold is a classification boundary, not a regulatory trigger — both small-pack (07411) and other green tea (07412) are subject to the same FDA food-import requirements including prior notice and facility registration. The distinction matters primarily for tariff classification purposes, as the two headings may carry different duty rates under the applicable HTS subheadings. Importers should confirm the correct heading with a licensed customs broker based on actual pack sizes.