At the six-digit NAICS level, adhesive manufacturing encompasses both industrial-grade structural bonding agents and consumer-facing products such as glues and sealants, all grouped under a single production category. The HTS classification of imported adhesives depends heavily on the chemical family — distinguishing, for example, between casein-based, starch-based, and synthetic-resin-based products — which affects both the applicable column 1 duty rate and any Section 301 exposure. Adhesives are a foundational input across packaging, woodworking, automotive, and electronics supply chains.

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